ARN [AntiRugN] Token

Reentrancy in ARN._transferFrom(address,address,uint256) (#742-772):
External calls:
- swapBackInBnb() (#756)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#919-925)
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
External calls sending eth:
- swapBackInBnb() (#756)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#760-763)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#768)
- amountReceived = takeFee(sender,amount,recipient) (#765-767)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#811)
Apply the check-effects-interactions pattern.

Additional information: link

ARN.swapBackInBnb().marketingSuccess (#876) is written in both
(marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
marketingSuccess = false (#880)
Fix or remove the writes.

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Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains

Contract ownership is not renounced (belongs to a wallet)

ARN.addLiquidity(uint256,uint256) (#928-940) ignores return value by router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
Ensure that all the return values of the function calls are used.

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ARN._approve(address,address,uint256).owner (#706) shadows:
- Ownable.owner() (#540-542) (function)
Rename the local variables that shadow another component.

Additional information: link

ARN.updateBuyFees(uint256,uint256) (#831-835) should emit an event for:
- buyTotalFees = dev.add(liquidity) (#834)
ARN.updateSellFees(uint256,uint256) (#837-841) should emit an event for:
- sellTotalFees = dev.add(liquidity) (#840)
ARN.updateSwapPercentages(uint256,uint256) (#843-850) should emit an event for:
- liquiditySwap = liquidity (#848)
- totalSwap = dev.add(liquidity) (#849)
Emit an event for critical parameter changes.

Additional information: link

ARN.setFeeReceivers(address)._wallet (#946) lacks a zero-check on :
- devFeeReceiver = _wallet (#947)
Check that the address is not zero.

Additional information: link

Reentrancy in ARN.constructor() (#645-662):
External calls:
- pair = IUniswapV2Factory(router.factory()).createPair(WBNB,address(this)) (#647-650)
State variables written after the call(s):
- _allowances[address(this)][address(router)] = type()(uint256).max (#651)
- _balances[deployer] = _totalSupply (#660)
- devFeeReceiver = 0xc0976e73A93BCF421b4243F3D0365C87aC8a2d51 (#658)
- isAuthorized[deployer] = true (#657)
- isFeeExempt[deployer] = true (#655)
Reentrancy in ARN.swapAndLiquify(uint256) (#889-910):
External calls:
- swapTokensForEth(half) (#901)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#919-925)
- addLiquidity(otherHalf,newBalance) (#907)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#907)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#907)
- _allowances[owner][spender] = amount (#713)
Reentrancy in ARN.swapBackInBnb() (#862-887):
External calls:
- swapTokensForEth(tokensToSwap) (#871)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#919-925)
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
- swapAndLiquify(tokensToLiquidity) (#885)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#919-925)
External calls sending eth:
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
- swapAndLiquify(tokensToLiquidity) (#885)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
State variables written after the call(s):
- swapAndLiquify(tokensToLiquidity) (#885)
- _allowances[owner][spender] = amount (#713)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in ARN._transferFrom(address,address,uint256) (#742-772):
External calls:
- swapBackInBnb() (#756)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#919-925)
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
External calls sending eth:
- swapBackInBnb() (#756)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#812)
- amountReceived = takeFee(sender,amount,recipient) (#765-767)
- Transfer(sender,recipient,amountReceived) (#770)
Reentrancy in ARN.constructor() (#645-662):
External calls:
- pair = IUniswapV2Factory(router.factory()).createPair(WBNB,address(this)) (#647-650)
Event emitted after the call(s):
- Transfer(address(0),deployer,_totalSupply) (#661)
Reentrancy in ARN.swapAndLiquify(uint256) (#889-910):
External calls:
- swapTokensForEth(half) (#901)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#919-925)
- addLiquidity(otherHalf,newBalance) (#907)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#907)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#714)
- addLiquidity(otherHalf,newBalance) (#907)
- AutoLiquify(newBalance,otherHalf) (#909)
Reentrancy in ARN.swapBackInBnb() (#862-887):
External calls:
- swapTokensForEth(tokensToSwap) (#871)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#919-925)
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
- swapAndLiquify(tokensToLiquidity) (#885)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#919-925)
External calls sending eth:
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
- swapAndLiquify(tokensToLiquidity) (#885)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (#932-939)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#714)
- swapAndLiquify(tokensToLiquidity) (#885)
- AutoLiquify(newBalance,otherHalf) (#909)
- swapAndLiquify(tokensToLiquidity) (#885)
Apply the check-effects-interactions pattern.

Additional information: link

Different versions of Solidity is used:
- Version used: ['>=0.5.0', '>=0.6.2', '^0.8.0', '^0.8.7']
- >=0.5.0 (#1)
- >=0.6.2 (#21)
- >=0.6.2 (#119)
- ^0.8.0 (#168)
- ^0.8.0 (#398)
- ^0.8.0 (#483)
- ^0.8.0 (#510)
- ^0.8.7 (#587)
Use one Solidity version.

Additional information: link

Context._msgData() (#500-502) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#355-364) is never used and should be removed
SafeMath.mod(uint256,uint256) (#315-317) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#381-390) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#186-192) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#228-233) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#240-245) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#211-221) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#199-204) is never used and should be removed
Remove unused functions.

Additional information: link

ARN.swapThreshold (#637) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 10) / 10000
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>=0.5.0 (#1) allows old versions
Pragma version>=0.6.2 (#21) allows old versions
Pragma version>=0.6.2 (#119) allows old versions
Pragma version^0.8.0 (#168) allows old versions
Pragma version^0.8.0 (#398) allows old versions
Pragma version^0.8.0 (#483) allows old versions
Pragma version^0.8.0 (#510) 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 ARN.swapBackInBnb() (#862-887):
- (marketingSuccess) = address(devFeeReceiver).call{gas: 30000,value: swappedBnbAmount}() (#876-879)
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() (#25) is not in mixedCase
Parameter ARN.tradingStatus(bool)._status (#853) is not in mixedCase
Parameter ARN.whitelistPreSale(address)._preSale (#857) is not in mixedCase
Parameter ARN.setFeeReceivers(address)._wallet (#946) is not in mixedCase
Parameter ARN.setSwapBackSettings(bool,uint256)._enabled (#950) is not in mixedCase
Parameter ARN.setSwapBackSettings(bool,uint256)._amount (#950) is not in mixedCase
Variable ARN.WBNB (#597) is not in mixedCase
Variable ARN.DEAD (#598) is not in mixedCase
Variable ARN.ZERO (#599) is not in mixedCase
Constant ARN._name (#601) is not in UPPER_CASE_WITH_UNDERSCORES
Constant ARN._symbol (#602) is not in UPPER_CASE_WITH_UNDERSCORES
Constant ARN._decimals (#603) is not in UPPER_CASE_WITH_UNDERSCORES
Variable ARN._totalSupply (#605) is not in mixedCase
Variable ARN._balances (#607) is not in mixedCase
Variable ARN._allowances (#608) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#30) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#31)
Prevent variables from having similar names.

Additional information: link

ARN.slitherConstructorVariables() (#594-958) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#598)
ARN.slitherConstructorVariables() (#594-958) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#599)
ARN.slitherConstructorVariables() (#594-958) uses literals with too many digits:
- _totalSupply = 300000 * (10 ** _decimals) (#605)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

ARN.DEAD (#598) is never used in ARN (#594-958)
ARN.ZERO (#599) is never used in ARN (#594-958)
Remove unused state variables.

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ARN.DEAD (#598) should be constant
ARN.WBNB (#597) should be constant
ARN.ZERO (#599) should be constant
ARN._totalSupply (#605) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#559-561)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#567-570)
name() should be declared external:
- ARN.name() (#670-672)
symbol() should be declared external:
- ARN.symbol() (#674-676)
decimals() should be declared external:
- ARN.decimals() (#678-680)
balanceOf(address) should be declared external:
- ARN.balanceOf(address) (#682-684)
updateBuyFees(uint256,uint256) should be declared external:
- ARN.updateBuyFees(uint256,uint256) (#831-835)
updateSellFees(uint256,uint256) should be declared external:
- ARN.updateSellFees(uint256,uint256) (#837-841)
updateSwapPercentages(uint256,uint256) should be declared external:
- ARN.updateSwapPercentages(uint256,uint256) (#843-850)
tradingStatus(bool) should be declared external:
- ARN.tradingStatus(bool) (#853-855)
whitelistPreSale(address) should be declared external:
- ARN.whitelistPreSale(address) (#857-860)
Use the external attribute for functions never called from the contract.

Additional information: link

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.

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Unable to find KYC or doxxing proof

Unable to find Telegram link on the website

Unable to find token on CoinGecko

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Unable to find token on CoinMarketCap

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Token is not listed at Mobula.Finance

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Unable to find token on CoinHunt

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Young tokens have high risks of price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank