WILLY [Willy Coin | willycoin.com] Token

Reentrancy in WillyCoin._transfer(address,address,uint256) (contracts/WillyCoin.sol#757-825):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/WillyCoin.sol#802)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/WillyCoin.sol#802)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _burnFee = _previousBurnFee (contracts/WillyCoin.sol#736)
- _burnFee = 0 (contracts/WillyCoin.sol#728)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _buybackFee = _previousBuybackFee (contracts/WillyCoin.sol#738)
- _buybackFee = 0 (contracts/WillyCoin.sol#730)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _liquidityFee = _previousLiquidityFee (contracts/WillyCoin.sol#735)
- _liquidityFee = 0 (contracts/WillyCoin.sol#727)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (contracts/WillyCoin.sol#691)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/WillyCoin.sol#984)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/WillyCoin.sol#1004)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/WillyCoin.sol#1026)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/WillyCoin.sol#1047)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/WillyCoin.sol#985)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/WillyCoin.sol#1006)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/WillyCoin.sol#1027)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/WillyCoin.sol#1049)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _rTotal = _rTotal.sub(rFee) (contracts/WillyCoin.sol#595)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (contracts/WillyCoin.sol#693)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (contracts/WillyCoin.sol#1025)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (contracts/WillyCoin.sol#1046)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (contracts/WillyCoin.sol#1005)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (contracts/WillyCoin.sol#1048)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _walletFee = _previousWalletFee (contracts/WillyCoin.sol#737)
- _walletFee = 0 (contracts/WillyCoin.sol#729)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- inSwapAndLiquify = true (contracts/WillyCoin.sol#319)
- inSwapAndLiquify = false (contracts/WillyCoin.sol#321)
Apply the check-effects-interactions pattern.

Additional information: link

WillyCoin.recoverBEP20(address,uint256) (contracts/WillyCoin.sol#1075-1082) ignores return value by IERC20(tokenAddress).transfer(owner(),tokenAmount) (contracts/WillyCoin.sol#1081)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

WillyCoin.setAllFeePercent(uint8,uint8,uint8,uint8,uint8) (contracts/WillyCoin.sol#537-554) contains a tautology or contradiction:
- require(bool,string)(liquidityFee >= 0 && liquidityFee <= maxLiqFee,LF err) (contracts/WillyCoin.sol#545)
WillyCoin.setAllFeePercent(uint8,uint8,uint8,uint8,uint8) (contracts/WillyCoin.sol#537-554) contains a tautology or contradiction:
- require(bool,string)(burnFee >= 0 && burnFee <= maxBurnFee,BF err) (contracts/WillyCoin.sol#546)
WillyCoin.setAllFeePercent(uint8,uint8,uint8,uint8,uint8) (contracts/WillyCoin.sol#537-554) contains a tautology or contradiction:
- require(bool,string)(walletFee >= 0 && walletFee <= maxWalletFee,WF err) (contracts/WillyCoin.sol#547)
WillyCoin.setAllFeePercent(uint8,uint8,uint8,uint8,uint8) (contracts/WillyCoin.sol#537-554) contains a tautology or contradiction:
- require(bool,string)(taxFee >= 0 && taxFee <= maxTaxFee,TF err) (contracts/WillyCoin.sol#544)
WillyCoin.setAllFeePercent(uint8,uint8,uint8,uint8,uint8) (contracts/WillyCoin.sol#537-554) contains a tautology or contradiction:
- require(bool,string)(buybackFee >= 0 && buybackFee <= maxBuybackFee,BBF err) (contracts/WillyCoin.sol#548)
Fix the incorrect comparison by changing the value type or the comparison.

Additional information: link

Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Contract ownership is not renounced (belongs to a wallet)

WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889) performs a multiplication on the result of a division:
-spentAmount = contractTokenBalance.div(totFee).mul(_burnFee) (contracts/WillyCoin.sol#834)
WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889) performs a multiplication on the result of a division:
-spentAmount = (contractTokenBalance / totFee) * _walletFee (contracts/WillyCoin.sol#840)
WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889) performs a multiplication on the result of a division:
-spentAmount = contractTokenBalance.div(totFee).mul(_buybackFee) (contracts/WillyCoin.sol#860)
Consider ordering multiplication before division.

Additional information: link

WillyCoin.addLiquidity(uint256,uint256) (contracts/WillyCoin.sol#932-945) ignores return value by pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
Ensure that all the return values of the function calls are used.

Additional information: link

WillyCoin.allowance(address,address).owner (contracts/WillyCoin.sol#395) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#35-37) (function)
WillyCoin._approve(address,address,uint256).owner (contracts/WillyCoin.sol#746) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#35-37) (function)
Rename the local variables that shadow another component.

Additional information: link

WillyCoin.setAllFeePercent(uint8,uint8,uint8,uint8,uint8) (contracts/WillyCoin.sol#537-554) should emit an event for:
- _taxFee = taxFee (contracts/WillyCoin.sol#549)
- _liquidityFee = liquidityFee (contracts/WillyCoin.sol#550)
- _burnFee = burnFee (contracts/WillyCoin.sol#551)
- _buybackFee = buybackFee (contracts/WillyCoin.sol#552)
- _walletFee = walletFee (contracts/WillyCoin.sol#553)
WillyCoin.setBuybackUpperLimit(uint256) (contracts/WillyCoin.sol#560-562) should emit an event for:
- buyBackUpperLimit = buyBackLimit * 10 ** 18 (contracts/WillyCoin.sol#561)
WillyCoin.setMaxTxPercent(uint256) (contracts/WillyCoin.sol#564-570) should emit an event for:
- _maxTxAmount = _tTotal.mul(maxTxPercent).div(10 ** 2) (contracts/WillyCoin.sol#569)
WillyCoin.setMaxWalletPercent(uint256) (contracts/WillyCoin.sol#572-579) should emit an event for:
- _maxWalletAmount = _tTotal.mul(maxWalletPercent).div(10 ** 2) (contracts/WillyCoin.sol#578)
Emit an event for critical parameter changes.

Additional information: link

WillyCoin.constructor(address,string,string,uint8,uint256,uint8,uint8,address)._feeWallet (contracts/WillyCoin.sol#332) lacks a zero-check on :
- feeWallet = _feeWallet (contracts/WillyCoin.sol#342)
Check that the address is not zero.

Additional information: link

Reentrancy in WillyCoin._transfer(address,address,uint256) (contracts/WillyCoin.sol#757-825):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/WillyCoin.sol#802)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/WillyCoin.sol#802)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousBurnFee = _burnFee (contracts/WillyCoin.sol#722)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousBuybackFee = _buybackFee (contracts/WillyCoin.sol#724)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousLiquidityFee = _liquidityFee (contracts/WillyCoin.sol#721)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousTaxFee = _taxFee (contracts/WillyCoin.sol#720)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousWalletFee = _walletFee (contracts/WillyCoin.sol#723)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _tFeeTotal = _tFeeTotal.add(tFee) (contracts/WillyCoin.sol#596)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _taxFee = _previousTaxFee (contracts/WillyCoin.sol#734)
- _taxFee = 0 (contracts/WillyCoin.sol#726)
Reentrancy in WillyCoin.constructor(address,string,string,uint8,uint256,uint8,uint8,address) (contracts/WillyCoin.sol#324-363):
External calls:
- pcsV2Pair = IUniswapV2Factory(_pcsV2Router.factory()).createPair(address(this),_pcsV2Router.WETH()) (contracts/WillyCoin.sol#351-354)
State variables written after the call(s):
- _isExcludedFromFee[tokenOwner] = true (contracts/WillyCoin.sol#359)
- _isExcludedFromFee[address(this)] = true (contracts/WillyCoin.sol#360)
- pcsV2Router = _pcsV2Router (contracts/WillyCoin.sol#357)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#846)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
External calls sending eth:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
State variables written after the call(s):
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- _allowances[owner][spender] = amount (contracts/WillyCoin.sol#753)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#846)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(half) (contracts/WillyCoin.sol#879)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
External calls sending eth:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
State variables written after the call(s):
- swapTokensForBNB(half) (contracts/WillyCoin.sol#879)
- _allowances[owner][spender] = amount (contracts/WillyCoin.sol#753)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#846)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(half) (contracts/WillyCoin.sol#879)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
External calls sending eth:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- _allowances[owner][spender] = amount (contracts/WillyCoin.sol#753)
Reentrancy in WillyCoin.transferFrom(address,address,uint256) (contracts/WillyCoin.sol#413-428):
External calls:
- _transfer(sender,recipient,amount) (contracts/WillyCoin.sol#418)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/WillyCoin.sol#418)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (contracts/WillyCoin.sol#419-426)
- _allowances[owner][spender] = amount (contracts/WillyCoin.sol#753)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in WillyCoin._transfer(address,address,uint256) (contracts/WillyCoin.sol#757-825):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/WillyCoin.sol#802)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/WillyCoin.sol#802)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (contracts/WillyCoin.sol#988)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- Transfer(sender,recipient,tTransferAmount) (contracts/WillyCoin.sol#1009)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- Transfer(sender,recipient,tTransferAmount) (contracts/WillyCoin.sol#1030)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- Transfer(sender,recipient,tTransferAmount) (contracts/WillyCoin.sol#1052)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
Reentrancy in WillyCoin.constructor(address,string,string,uint8,uint256,uint8,uint8,address) (contracts/WillyCoin.sol#324-363):
External calls:
- pcsV2Pair = IUniswapV2Factory(_pcsV2Router.factory()).createPair(address(this),_pcsV2Router.WETH()) (contracts/WillyCoin.sol#351-354)
Event emitted after the call(s):
- Transfer(address(0),tokenOwner,_tTotal) (contracts/WillyCoin.sol#362)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#846)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
Event emitted after the call(s):
- TrackLog(5,newBalance) (contracts/WillyCoin.sol#850)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#846)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
External calls sending eth:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/WillyCoin.sol#754)
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#846)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(half) (contracts/WillyCoin.sol#879)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
External calls sending eth:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/WillyCoin.sol#754)
- swapTokensForBNB(half) (contracts/WillyCoin.sol#879)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#846)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- swapTokensForBNB(half) (contracts/WillyCoin.sol#879)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
External calls sending eth:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/WillyCoin.sol#754)
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- SwapAndLiquify(half,newBalance_scope_1,otherHalf) (contracts/WillyCoin.sol#887)
Reentrancy in WillyCoin.transferFrom(address,address,uint256) (contracts/WillyCoin.sol#413-428):
External calls:
- _transfer(sender,recipient,amount) (contracts/WillyCoin.sol#418)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/WillyCoin.sol#906-912)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/WillyCoin.sol#418)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/WillyCoin.sol#754)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (contracts/WillyCoin.sol#419-426)
Apply the check-effects-interactions pattern.

Additional information: link

Address.verifyCallResult(bool,bytes,string) (@openzeppelin/contracts/utils/Address.sol#201-221) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/Address.sol#213-216)
Do not use evm assembly.

Additional information: link

Different versions of Solidity is used:
- Version used: ['^0.8.0', '^0.8.1']
- ^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#4)
- ^0.8.1 (@openzeppelin/contracts/utils/Address.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/math/SafeMath.sol#4)
- ^0.8.0 (contracts/WillyCoin.sol#2)
Use one Solidity version.

Additional information: link

WillyCoin.includeInReward(address) (contracts/WillyCoin.sol#516-527) has costly operations inside a loop:
- _excluded.pop() (contracts/WillyCoin.sol#523)
Use a local variable to hold the loop computation result.

Additional information: link

Address.functionCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#85-87) is never used and should be removed
Address.functionCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#95-101) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (@openzeppelin/contracts/utils/Address.sol#114-120) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (@openzeppelin/contracts/utils/Address.sol#128-139) is never used and should be removed
Address.functionDelegateCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#174-176) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#184-193) is never used and should be removed
Address.functionStaticCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#147-149) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#157-166) is never used and should be removed
Address.isContract(address) (@openzeppelin/contracts/utils/Address.sol#36-42) is never used and should be removed
Address.sendValue(address,uint256) (@openzeppelin/contracts/utils/Address.sol#60-65) is never used and should be removed
Address.verifyCallResult(bool,bytes,string) (@openzeppelin/contracts/utils/Address.sol#201-221) is never used and should be removed
Context._msgData() (@openzeppelin/contracts/utils/Context.sol#21-23) is never used and should be removed
SafeMath.div(uint256,uint256,string) (@openzeppelin/contracts/utils/math/SafeMath.sol#191-200) is never used and should be removed
SafeMath.mod(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#151-153) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (@openzeppelin/contracts/utils/math/SafeMath.sol#217-226) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#22-28) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#64-69) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#76-81) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#47-57) is never used and should be removed
SafeMath.trySub(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#35-40) is never used and should be removed
Remove unused functions.

Additional information: link

WillyCoin._previousTaxFee (contracts/WillyCoin.sol#283) is set pre-construction with a non-constant function or state variable:
- _taxFee
WillyCoin._previousLiquidityFee (contracts/WillyCoin.sol#286) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
WillyCoin._previousBurnFee (contracts/WillyCoin.sol#289) is set pre-construction with a non-constant function or state variable:
- _burnFee
WillyCoin._previousWalletFee (contracts/WillyCoin.sol#292) is set pre-construction with a non-constant function or state variable:
- _walletFee
WillyCoin._previousBuybackFee (contracts/WillyCoin.sol#295) is set pre-construction with a non-constant function or state variable:
- _buybackFee
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Pragma version^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#4) allows old versions
Pragma version^0.8.1 (@openzeppelin/contracts/utils/Address.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Context.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/math/SafeMath.sol#4) allows old versions
Pragma version^0.8.0 (contracts/WillyCoin.sol#2) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Low level call in Address.sendValue(address,uint256) (@openzeppelin/contracts/utils/Address.sol#60-65):
- (success) = recipient.call{value: amount}() (@openzeppelin/contracts/utils/Address.sol#63)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (@openzeppelin/contracts/utils/Address.sol#128-139):
- (success,returndata) = target.call{value: value}(data) (@openzeppelin/contracts/utils/Address.sol#137)
Low level call in Address.functionStaticCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#157-166):
- (success,returndata) = target.staticcall(data) (@openzeppelin/contracts/utils/Address.sol#164)
Low level call in Address.functionDelegateCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#184-193):
- (success,returndata) = target.delegatecall(data) (@openzeppelin/contracts/utils/Address.sol#191)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Router01.WETH() (contracts/WillyCoin.sol#42) is not in mixedCase
Parameter WillyCoin.setSwapAndLiquifyEnabled(bool)._enabled (contracts/WillyCoin.sol#581) is not in mixedCase
Parameter WillyCoin.calculateTaxFee(uint256)._amount (contracts/WillyCoin.sol#696) is not in mixedCase
Parameter WillyCoin.calculateLiquidityFee(uint256)._amount (contracts/WillyCoin.sol#700) is not in mixedCase
Parameter WillyCoin.changeMode(bool)._newMode (contracts/WillyCoin.sol#1084) is not in mixedCase
Variable WillyCoin._tTotal (contracts/WillyCoin.sol#272) is not in mixedCase
Variable WillyCoin._name (contracts/WillyCoin.sol#278) is not in mixedCase
Variable WillyCoin._symbol (contracts/WillyCoin.sol#279) is not in mixedCase
Variable WillyCoin._taxFee (contracts/WillyCoin.sol#282) is not in mixedCase
Variable WillyCoin._liquidityFee (contracts/WillyCoin.sol#285) is not in mixedCase
Variable WillyCoin._burnFee (contracts/WillyCoin.sol#288) is not in mixedCase
Variable WillyCoin._walletFee (contracts/WillyCoin.sol#291) is not in mixedCase
Variable WillyCoin._buybackFee (contracts/WillyCoin.sol#294) is not in mixedCase
Variable WillyCoin._maxTxAmount (contracts/WillyCoin.sol#305) is not in mixedCase
Variable WillyCoin._maxWalletAmount (contracts/WillyCoin.sol#306) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Reentrancy in WillyCoin._transfer(address,address,uint256) (contracts/WillyCoin.sol#757-825):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/WillyCoin.sol#802)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/WillyCoin.sol#802)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _burnFee = _previousBurnFee (contracts/WillyCoin.sol#736)
- _burnFee = 0 (contracts/WillyCoin.sol#728)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _buybackFee = _previousBuybackFee (contracts/WillyCoin.sol#738)
- _buybackFee = 0 (contracts/WillyCoin.sol#730)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _liquidityFee = _previousLiquidityFee (contracts/WillyCoin.sol#735)
- _liquidityFee = 0 (contracts/WillyCoin.sol#727)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousBurnFee = _burnFee (contracts/WillyCoin.sol#722)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousBuybackFee = _buybackFee (contracts/WillyCoin.sol#724)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousLiquidityFee = _liquidityFee (contracts/WillyCoin.sol#721)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousTaxFee = _taxFee (contracts/WillyCoin.sol#720)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _previousWalletFee = _walletFee (contracts/WillyCoin.sol#723)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (contracts/WillyCoin.sol#691)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/WillyCoin.sol#984)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/WillyCoin.sol#1004)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/WillyCoin.sol#1026)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/WillyCoin.sol#1047)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/WillyCoin.sol#985)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/WillyCoin.sol#1006)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/WillyCoin.sol#1027)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/WillyCoin.sol#1049)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _rTotal = _rTotal.sub(rFee) (contracts/WillyCoin.sol#595)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _tFeeTotal = _tFeeTotal.add(tFee) (contracts/WillyCoin.sol#596)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (contracts/WillyCoin.sol#693)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (contracts/WillyCoin.sol#1025)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (contracts/WillyCoin.sol#1046)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (contracts/WillyCoin.sol#1005)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (contracts/WillyCoin.sol#1048)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _taxFee = _previousTaxFee (contracts/WillyCoin.sol#734)
- _taxFee = 0 (contracts/WillyCoin.sol#726)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- _walletFee = _previousWalletFee (contracts/WillyCoin.sol#737)
- _walletFee = 0 (contracts/WillyCoin.sol#729)
- buyBackTokens(balance.div(100)) (contracts/WillyCoin.sol#810)
- inSwapAndLiquify = true (contracts/WillyCoin.sol#319)
- inSwapAndLiquify = false (contracts/WillyCoin.sol#321)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (contracts/WillyCoin.sol#988)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- Transfer(sender,recipient,tTransferAmount) (contracts/WillyCoin.sol#1030)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- Transfer(sender,recipient,tTransferAmount) (contracts/WillyCoin.sol#1009)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
- Transfer(sender,recipient,tTransferAmount) (contracts/WillyCoin.sol#1052)
- _tokenTransfer(from,to,amount,takeFee) (contracts/WillyCoin.sol#824)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
State variables written after the call(s):
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- _allowances[owner][spender] = amount (contracts/WillyCoin.sol#753)
- swapTokensForBNB(half) (contracts/WillyCoin.sol#879)
- _allowances[owner][spender] = amount (contracts/WillyCoin.sol#753)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/WillyCoin.sol#754)
- swapTokensForBNB(spentAmount) (contracts/WillyCoin.sol#861)
- Approval(owner,spender,amount) (contracts/WillyCoin.sol#754)
- swapTokensForBNB(half) (contracts/WillyCoin.sol#879)
Reentrancy in WillyCoin.swapAndLiquify(uint256) (contracts/WillyCoin.sol#827-889):
External calls:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
External calls sending eth:
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- _allowances[owner][spender] = amount (contracts/WillyCoin.sol#753)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/WillyCoin.sol#754)
- addLiquidity(otherHalf,newBalance_scope_1) (contracts/WillyCoin.sol#885)
- SwapAndLiquify(half,newBalance_scope_1,otherHalf) (contracts/WillyCoin.sol#887)
Reentrancy in WillyCoin.transferFrom(address,address,uint256) (contracts/WillyCoin.sol#413-428):
External calls:
- _transfer(sender,recipient,amount) (contracts/WillyCoin.sol#418)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/WillyCoin.sol#418)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/WillyCoin.sol#937-944)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (contracts/WillyCoin.sol#922-929)
- address(feeWallet).transfer(newBalance) (contracts/WillyCoin.sol#851)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (contracts/WillyCoin.sol#419-426)
- _allowances[owner][spender] = amount (contracts/WillyCoin.sol#753)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/WillyCoin.sol#754)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (contracts/WillyCoin.sol#419-426)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (contracts/WillyCoin.sol#47) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (contracts/WillyCoin.sol#48)
Variable WillyCoin._getValues(uint256).rTransferAmount (contracts/WillyCoin.sol#616) is too similar to WillyCoin._transferBothExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1042)
Variable WillyCoin._transferStandard(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#978) is too similar to WillyCoin._getTValues(uint256).tTransferAmount (contracts/WillyCoin.sol#643)
Variable WillyCoin._getValues(uint256).rTransferAmount (contracts/WillyCoin.sol#616) is too similar to WillyCoin._getTValues(uint256).tTransferAmount (contracts/WillyCoin.sol#643)
Variable WillyCoin._transferToExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#998) is too similar to WillyCoin._transferStandard(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#980)
Variable WillyCoin._transferStandard(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#978) is too similar to WillyCoin._transferFromExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1021)
Variable WillyCoin._getValues(uint256).rTransferAmount (contracts/WillyCoin.sol#616) is too similar to WillyCoin._transferFromExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1021)
Variable WillyCoin._transferStandard(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#978) is too similar to WillyCoin._getValues(uint256).tTransferAmount (contracts/WillyCoin.sol#612)
Variable WillyCoin._transferBothExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1040) is too similar to WillyCoin._transferBothExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1042)
Variable WillyCoin._transferToExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#998) is too similar to WillyCoin._transferBothExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1042)
Variable WillyCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (contracts/WillyCoin.sol#664) is too similar to WillyCoin._transferBothExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1042)
Variable WillyCoin._transferBothExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1040) is too similar to WillyCoin._getTValues(uint256).tTransferAmount (contracts/WillyCoin.sol#643)
Variable WillyCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (contracts/WillyCoin.sol#664) is too similar to WillyCoin._getTValues(uint256).tTransferAmount (contracts/WillyCoin.sol#643)
Variable WillyCoin._transferToExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#998) is too similar to WillyCoin._getTValues(uint256).tTransferAmount (contracts/WillyCoin.sol#643)
Variable WillyCoin._transferBothExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1040) is too similar to WillyCoin._transferFromExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1021)
Variable WillyCoin._transferToExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#998) is too similar to WillyCoin._transferFromExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1021)
Variable WillyCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (contracts/WillyCoin.sol#664) is too similar to WillyCoin._transferFromExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1021)
Variable WillyCoin._transferToExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#998) is too similar to WillyCoin._transferToExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1000)
Variable WillyCoin._transferStandard(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#978) is too similar to WillyCoin._transferStandard(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#980)
Variable WillyCoin._transferToExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#998) is too similar to WillyCoin._getValues(uint256).tTransferAmount (contracts/WillyCoin.sol#612)
Variable WillyCoin.reflectionFromToken(uint256,bool).rTransferAmount (contracts/WillyCoin.sol#489) is too similar to WillyCoin._getTValues(uint256).tTransferAmount (contracts/WillyCoin.sol#643)
Variable WillyCoin._transferStandard(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#978) is too similar to WillyCoin._transferBothExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1042)
Variable WillyCoin.reflectionFromToken(uint256,bool).rTransferAmount (contracts/WillyCoin.sol#489) is too similar to WillyCoin._getValues(uint256).tTransferAmount (contracts/WillyCoin.sol#612)
Variable WillyCoin.reflectionFromToken(uint256,bool).rTransferAmount (contracts/WillyCoin.sol#489) is too similar to WillyCoin._transferFromExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1021)
Variable WillyCoin._transferFromExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1019) is too similar to WillyCoin._getValues(uint256).tTransferAmount (contracts/WillyCoin.sol#612)
Variable WillyCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (contracts/WillyCoin.sol#664) is too similar to WillyCoin._transferToExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1000)
Variable WillyCoin._transferFromExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1019) is too similar to WillyCoin._transferFromExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1021)
Variable WillyCoin._getValues(uint256).rTransferAmount (contracts/WillyCoin.sol#616) is too similar to WillyCoin._transferStandard(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#980)
Variable WillyCoin.reflectionFromToken(uint256,bool).rTransferAmount (contracts/WillyCoin.sol#489) is too similar to WillyCoin._transferBothExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1042)
Variable WillyCoin.reflectionFromToken(uint256,bool).rTransferAmount (contracts/WillyCoin.sol#489) is too similar to WillyCoin._transferToExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1000)
Variable WillyCoin._transferBothExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1040) is too similar to WillyCoin._transferStandard(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#980)
Variable WillyCoin._transferFromExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1019) is too similar to WillyCoin._transferBothExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1042)
Variable WillyCoin._transferFromExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1019) is too similar to WillyCoin._transferToExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1000)
Variable WillyCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (contracts/WillyCoin.sol#664) is too similar to WillyCoin._transferStandard(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#980)
Variable WillyCoin._transferStandard(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#978) is too similar to WillyCoin._transferToExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1000)
Variable WillyCoin.reflectionFromToken(uint256,bool).rTransferAmount (contracts/WillyCoin.sol#489) is too similar to WillyCoin._transferStandard(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#980)
Variable WillyCoin._transferFromExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1019) is too similar to WillyCoin._transferStandard(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#980)
Variable WillyCoin._getValues(uint256).rTransferAmount (contracts/WillyCoin.sol#616) is too similar to WillyCoin._getValues(uint256).tTransferAmount (contracts/WillyCoin.sol#612)
Variable WillyCoin._transferBothExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1040) is too similar to WillyCoin._getValues(uint256).tTransferAmount (contracts/WillyCoin.sol#612)
Variable WillyCoin._transferFromExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1019) is too similar to WillyCoin._getTValues(uint256).tTransferAmount (contracts/WillyCoin.sol#643)
Variable WillyCoin._getValues(uint256).rTransferAmount (contracts/WillyCoin.sol#616) is too similar to WillyCoin._transferToExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1000)
Variable WillyCoin._transferBothExcluded(address,address,uint256).rTransferAmount (contracts/WillyCoin.sol#1040) is too similar to WillyCoin._transferToExcluded(address,address,uint256).tTransferAmount (contracts/WillyCoin.sol#1000)
Variable WillyCoin._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (contracts/WillyCoin.sol#664) is too similar to WillyCoin._getValues(uint256).tTransferAmount (contracts/WillyCoin.sol#612)
Prevent variables from having similar names.

Additional information: link

WillyCoin.slitherConstructorVariables() (contracts/WillyCoin.sol#245-1087) uses literals with too many digits:
- dead = 0x000000000000000000000000000000000000dEaD (contracts/WillyCoin.sol#249)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

WillyCoin.dead (contracts/WillyCoin.sol#249) should be constant
WillyCoin.maxBurnFee (contracts/WillyCoin.sol#253) should be constant
WillyCoin.maxBuybackFee (contracts/WillyCoin.sol#255) should be constant
WillyCoin.maxLiqFee (contracts/WillyCoin.sol#251) should be constant
WillyCoin.maxTaxFee (contracts/WillyCoin.sol#252) should be constant
WillyCoin.maxWalletFee (contracts/WillyCoin.sol#254) should be constant
WillyCoin.minMxTxPercentage (contracts/WillyCoin.sol#256) should be constant
WillyCoin.minMxWalletPercentage (contracts/WillyCoin.sol#257) should be constant
WillyCoin.mintedByMudra (contracts/WillyCoin.sol#276) should be constant
WillyCoin.router (contracts/WillyCoin.sol#268) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#54-56)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#62-65)
name() should be declared external:
- WillyCoin.name() (contracts/WillyCoin.sol#365-367)
symbol() should be declared external:
- WillyCoin.symbol() (contracts/WillyCoin.sol#369-371)
decimals() should be declared external:
- WillyCoin.decimals() (contracts/WillyCoin.sol#373-375)
totalSupply() should be declared external:
- WillyCoin.totalSupply() (contracts/WillyCoin.sol#377-379)
transfer(address,uint256) should be declared external:
- WillyCoin.transfer(address,uint256) (contracts/WillyCoin.sol#386-393)
allowance(address,address) should be declared external:
- WillyCoin.allowance(address,address) (contracts/WillyCoin.sol#395-402)
approve(address,uint256) should be declared external:
- WillyCoin.approve(address,uint256) (contracts/WillyCoin.sol#404-411)
transferFrom(address,address,uint256) should be declared external:
- WillyCoin.transferFrom(address,address,uint256) (contracts/WillyCoin.sol#413-428)
increaseAllowance(address,uint256) should be declared external:
- WillyCoin.increaseAllowance(address,uint256) (contracts/WillyCoin.sol#430-441)
decreaseAllowance(address,uint256) should be declared external:
- WillyCoin.decreaseAllowance(address,uint256) (contracts/WillyCoin.sol#443-457)
isExcludedFromReward(address) should be declared external:
- WillyCoin.isExcludedFromReward(address) (contracts/WillyCoin.sol#459-461)
totalFees() should be declared external:
- WillyCoin.totalFees() (contracts/WillyCoin.sol#463-465)
deliver(uint256) should be declared external:
- WillyCoin.deliver(uint256) (contracts/WillyCoin.sol#467-477)
reflectionFromToken(uint256,bool) should be declared external:
- WillyCoin.reflectionFromToken(uint256,bool) (contracts/WillyCoin.sol#479-492)
excludeFromReward(address) should be declared external:
- WillyCoin.excludeFromReward(address) (contracts/WillyCoin.sol#504-514)
excludeFromFee(address) should be declared external:
- WillyCoin.excludeFromFee(address) (contracts/WillyCoin.sol#529-531)
includeInFee(address) should be declared external:
- WillyCoin.includeInFee(address) (contracts/WillyCoin.sol#533-535)
buyBackUpperLimitAmount() should be declared external:
- WillyCoin.buyBackUpperLimitAmount() (contracts/WillyCoin.sol#556-558)
setSwapAndLiquifyEnabled(bool) should be declared external:
- WillyCoin.setSwapAndLiquifyEnabled(bool) (contracts/WillyCoin.sol#581-584)
isExcludedFromFee(address) should be declared external:
- WillyCoin.isExcludedFromFee(address) (contracts/WillyCoin.sol#741-743)
recoverBEP20(address,uint256) should be declared external:
- WillyCoin.recoverBEP20(address,uint256) (contracts/WillyCoin.sol#1075-1082)
changeMode(bool) should be declared external:
- WillyCoin.changeMode(bool) (contracts/WillyCoin.sol#1084-1086)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract name (Willy Coin | willycoin.com) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.

Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link

Unable to find token contract audit

Unable to find KYC or doxxing proof

Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)

Unable to verify token contract address on the website

Unable to find audit link on the website

Unable to find token on CoinGecko

Additional information: link

Unable to find token on CoinMarketCap

Additional information: link

Token is not listed at Mobula.Finance

Additional information: link

Unable to find token on CoinHunt

Additional information: link

Unable to find code repository for the project

Young tokens have high risks of scam / price dump / death

Young tokens have high risks of scam / price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank