BURN1COIN Token

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

BurnOne.addLiquidity(uint256,uint256) (#967-980) sends eth to arbitrary user
Dangerous calls:
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in BurnOne._transfer(address,address,uint256) (#883-924):
External calls:
- swapAndLiquify(contractTokenBalance) (#911)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#911)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#923)
- _rOwned[account] = _rOwned[account] + rFee (#863)
- _rOwned[sender] = _rOwned[sender] - rAmount (#833)
- _rOwned[recipient] = _rOwned[recipient] + rTransferAmount (#834)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- _rTotal -= rFee (#794)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- _tOwned[account] = _tOwned[account] + tFee (#865)
- _tOwned[sender] = _tOwned[sender] - amount (#836)
- _tOwned[recipient] = _tOwned[recipient] + tTransferAmount (#838)
Apply the check-effects-interactions pattern.

Additional information: link

Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Address.isContract(address) (#104-113) uses assembly
- INLINE ASM (#111)
Address._functionCallWithValue(address,bytes,uint256,string) (#197-218) uses assembly
- INLINE ASM (#210-213)
Do not use evm assembly.

Additional information: link

BurnOne.includeInReward(address) (#708-719) has costly operations inside a loop:
- _excluded.pop() (#715)
Use a local variable to hold the loop computation result.

Additional information: link

BurnOne.addLiquidity(uint256,uint256) (#967-980) ignores return value by pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
Ensure that all the return values of the function calls are used.

Additional information: link

BurnOne.allowance(address,address).owner (#632) shadows:
- Ownable.owner() (#240-242) (function)
BurnOne._approve(address,address,uint256).owner (#877) shadows:
- Ownable.owner() (#240-242) (function)
Rename the local variables that shadow another component.

Additional information: link

BurnOne.setFeePercent(uint256,uint256,uint256) (#729-733) should emit an event for:
- _taxFee = taxFee (#730)
- _liquidityFee = liquidityFee (#731)
- _burnFee = burnFee (#732)
BurnOne.setMaxTxPercent(uint256) (#761-763) should emit an event for:
- _maxTxAmount = (_tTotal * maxTxPercent) / 1000 (#762)
Emit an event for critical parameter changes.

Additional information: link

Ownable.constructor().msgSender (#232) lacks a zero-check on :
- _owner = msgSender (#233)
BurnOne.transferDustBNB().wallet (#783) lacks a zero-check on :
- wallet.transfer(address(this).balance) (#784)
Check that the address is not zero.

Additional information: link

Reentrancy in BurnOne._transfer(address,address,uint256) (#883-924):
External calls:
- swapAndLiquify(contractTokenBalance) (#911)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#911)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#923)
- _allowances[owner][spender] = amount (#879)
Reentrancy in BurnOne.constructor(address) (#566-582):
External calls:
- pancakeswapV2Pair = IPancakeswapV2Factory(_pancakeswapV2Router.factory()).createPair(address(this),_pancakeswapV2Router.WETH()) (#574-575)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#580)
- _isExcludedFromFee[address(this)] = true (#581)
- pancakeswapV2Router = _pancakeswapV2Router (#577)
Reentrancy in BurnOne.swapAndLiquify(uint256) (#932-947):
External calls:
- swapTokensForBnb(half,address(this)) (#939)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
- addLiquidity(otherHalf,newBalance) (#944)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#944)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#944)
- _allowances[owner][spender] = amount (#879)
Reentrancy in BurnOne.transferFrom(address,address,uint256) (#641-649):
External calls:
- _transfer(sender,recipient,amount) (#642)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
External calls sending eth:
- _transfer(sender,recipient,amount) (#642)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
State variables written after the call(s):
- _approve(sender,_msgSender(),currentAllowance - amount) (#646)
- _allowances[owner][spender] = amount (#879)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in BurnOne._transfer(address,address,uint256) (#883-924):
External calls:
- swapAndLiquify(contractTokenBalance) (#911)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#911)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#880)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- Transfer(sender,address(this),tLiquidity) (#809)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- Transfer(sender,BURN_ADDRESS,tBurn) (#812)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- Transfer(sender,feeWallets[i],tFee) (#822)
- _tokenTransfer(from,to,amount,takeFee) (#923)
- Transfer(sender,recipient,tTransferAmount) (#840)
- _tokenTransfer(from,to,amount,takeFee) (#923)
Reentrancy in BurnOne.swapAndLiquify(uint256) (#932-947):
External calls:
- swapTokensForBnb(half,address(this)) (#939)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
- addLiquidity(otherHalf,newBalance) (#944)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#944)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#880)
- addLiquidity(otherHalf,newBalance) (#944)
- SwapAndLiquify(half,newBalance,otherHalf) (#946)
Reentrancy in BurnOne.transferFrom(address,address,uint256) (#641-649):
External calls:
- _transfer(sender,recipient,amount) (#642)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#958-964)
External calls sending eth:
- _transfer(sender,recipient,amount) (#642)
- pancakeswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#972-979)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#880)
- _approve(sender,_msgSender(),currentAllowance - amount) (#646)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#287-292) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked ) (#289)
Avoid relying on block.timestamp.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#197-218) is never used and should be removed
Address.functionCall(address,bytes) (#157-159) is never used and should be removed
Address.functionCall(address,bytes,string) (#167-169) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#182-184) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#192-195) is never used and should be removed
Address.isContract(address) (#104-113) is never used and should be removed
Address.sendValue(address,uint256) (#131-137) is never used and should be removed
Context._msgData() (#76-79) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.8.1 (#5) 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) (#131-137):
- (success) = recipient.call{value: amount}() (#135)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#197-218):
- (success,returndata) = target.call{value: weiValue}(data) (#201)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IPancakeswapV2Pair.DOMAIN_SEPARATOR() (#328) is not in mixedCase
Function IPancakeswapV2Pair.PERMIT_TYPEHASH() (#329) is not in mixedCase
Function IPancakeswapV2Pair.MINIMUM_LIQUIDITY() (#346) is not in mixedCase
Function IPancakeswapV2Router01.WETH() (#367) is not in mixedCase
Parameter BurnOne.setAdditionalFees(address[],uint256[])._feeWallets (#735) is not in mixedCase
Parameter BurnOne.setAdditionalFees(address[],uint256[])._feePercents (#735) is not in mixedCase
Parameter BurnOne.setSwapAndLiquifyEnabled(bool)._enabled (#765) is not in mixedCase
Constant BurnOne._tTotal (#516) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BurnOne._name (#524) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BurnOne._symbol (#525) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BurnOne._decimals (#526) is not in UPPER_CASE_WITH_UNDERSCORES
Variable BurnOne._taxFee (#528) is not in mixedCase
Variable BurnOne._liquidityFee (#530) is not in mixedCase
Variable BurnOne._burnFee (#531) is not in mixedCase
Constant BurnOne.numTokensSellToAddToLiquidity (#548) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#77)" inContext (#71-80)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IPancakeswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#372) is too similar to IPancakeswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#373)
Variable BurnOne._tokenTransfer(address,address,uint256,bool).rTransferAmount (#830) is too similar to BurnOne.reflectionFromToken(uint256,bool).tTransferAmount (#686)
Variable BurnOne._tokenTransfer(address,address,uint256,bool).rTransferAmount (#830) is too similar to BurnOne._tokenTransfer(address,address,uint256,bool).tTransferAmount (#801)
Prevent variables from having similar names.

Additional information: link

BurnOne.slitherConstructorConstantVariables() (#501-982) uses literals with too many digits:
- _tTotal = 1000000000000000 * 10 ** 9 (#516)
BurnOne.slitherConstructorConstantVariables() (#501-982) uses literals with too many digits:
- BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD (#550)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

BurnOne.YEAR (#520) is never used in BurnOne (#501-982)
BurnOne._currentYear (#522) is never used in BurnOne (#501-982)
Remove unused state variables.

Additional information: link

BurnOne._currentYear (#522) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#259-262)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#268-272)
geUnlockTime() should be declared external:
- Ownable.geUnlockTime() (#274-276)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#279-284)
unlock() should be declared external:
- Ownable.unlock() (#287-292)
setBalances(address[],uint256[],uint256) should be declared external:
- BurnOne.setBalances(address[],uint256[],uint256) (#585-594)
disableSetBalances() should be declared external:
- BurnOne.disableSetBalances() (#597-600)
name() should be declared external:
- BurnOne.name() (#602-604)
symbol() should be declared external:
- BurnOne.symbol() (#606-608)
decimals() should be declared external:
- BurnOne.decimals() (#610-612)
totalSupply() should be declared external:
- BurnOne.totalSupply() (#614-616)
transfer(address,uint256) should be declared external:
- BurnOne.transfer(address,uint256) (#627-630)
allowance(address,address) should be declared external:
- BurnOne.allowance(address,address) (#632-634)
approve(address,uint256) should be declared external:
- BurnOne.approve(address,uint256) (#636-639)
transferFrom(address,address,uint256) should be declared external:
- BurnOne.transferFrom(address,address,uint256) (#641-649)
increaseAllowance(address,uint256) should be declared external:
- BurnOne.increaseAllowance(address,uint256) (#651-654)
decreaseAllowance(address,uint256) should be declared external:
- BurnOne.decreaseAllowance(address,uint256) (#656-662)
isExcludedFromReward(address) should be declared external:
- BurnOne.isExcludedFromReward(address) (#664-666)
totalFees() should be declared external:
- BurnOne.totalFees() (#668-670)
reflectionFromToken(uint256,bool) should be declared external:
- BurnOne.reflectionFromToken(uint256,bool) (#677-691)
excludeFromReward(address) should be declared external:
- BurnOne.excludeFromReward(address) (#699-706)
excludeFromFee(address) should be declared external:
- BurnOne.excludeFromFee(address) (#721-723)
includeInFee(address) should be declared external:
- BurnOne.includeInFee(address) (#725-727)
setAdditionalFees(address[],uint256[]) should be declared external:
- BurnOne.setAdditionalFees(address[],uint256[]) (#735-738)
toggleCharitySale(bool,address) should be declared external:
- BurnOne.toggleCharitySale(bool,address) (#740-759)
setSwapAndLiquifyEnabled(bool) should be declared external:
- BurnOne.setSwapAndLiquifyEnabled(bool) (#765-768)
blacklistAccount(address) should be declared external:
- BurnOne.blacklistAccount(address) (#770-772)
removeAccountFromBlacklist(address) should be declared external:
- BurnOne.removeAccountFromBlacklist(address) (#774-776)
sendFeesAsBNB(bool) should be declared external:
- BurnOne.sendFeesAsBNB(bool) (#778-780)
isExcludedFromFee(address) should be declared external:
- BurnOne.isExcludedFromFee(address) (#873-875)
Use the external attribute for functions never called from the contract.

Additional information: link

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

Contract has 11% buy tax and 10% sell tax.
Taxes are high (over 10%) but contract ownership is renounced.

Average 30d PancakeSwap volume is low.

Average PancakeSwap trading volume, liqudity, number of swaps are low. Token seems to be inactive.

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find token contract audit

Unable to find audit link on the website

Unable to find whitepaper link on the website

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 price dump / death

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinGecko rank

Token has relatively low CoinMarketCap rank