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BBC Token

ALERT: phishing / airdrop scam

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https://t.co/kT4Gqsqcf8

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Laser Scorebeta Last Audit: 17 June 2022

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Token seems to be a scam (type: phishing / airdrop scam).

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BBCToken.airdrop(address) (#1075-1088) sends eth to arbitrary user
Dangerous calls:
- address(address(uint160(_refer))).transfer(referEth) (#1084)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in BBCToken._transfer(address,address,uint256) (#606-658):
External calls:
- swapTokens(contractTokenBalance) (#629)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#681-687)
External calls sending eth:
- swapTokens(contractTokenBalance) (#629)
- recipient.transfer(amount) (#1000)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#840)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#765)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#776)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#786)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#767)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#777)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#788)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#754)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#755)
- _rOwned[deadAddress] = _rOwned[deadAddress].add(rBurnAmount) (#756)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _rTotal = _rTotal.sub(rFee) (#795)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#842)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#775)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#785)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#766)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#787)
Apply the check-effects-interactions pattern.

Additional information: link

BBCToken.swapTokenForTokens(address,address,uint256) (#709-712) ignores return value by tokenC.transfer(account,amount) (#711)
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...)


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.


Combination 2: Unchecked transfer + 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.


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)

BBCToken._transferStandard(address,address,uint256) (#747-761) performs a multiplication on the result of a division:
-tBurnAmount = tAmount.div(100).mul(_burnFee) (#750)
Consider ordering multiplication before division.

Additional information: link

BBCToken.addLiquidity(uint256,uint256) (#714-727) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#719-726)
Ensure that all the return values of the function calls are used.

Additional information: link

BBCToken.allowance(address,address).owner (#502) shadows:
- Ownable.owner() (#155-157) (function)
BBCToken._approve(address,address,uint256).owner (#598) shadows:
- Ownable.owner() (#155-157) (function)
BBCToken.increaseSpenderAllowance(address,address,uint256).owner (#845) shadows:
- Ownable.owner() (#155-157) (function)
Rename the local variables that shadow another component.

Additional information: link

BBCToken.setTaxFeePercent(uint256) (#910-912) should emit an event for:
- _taxFee = taxFee (#911)
BBCToken.setLiquidityFeePercent(uint256) (#914-916) should emit an event for:
- _liquidityFee = liquidityFee (#915)
BBCToken.setBuyTaxFeePercent(uint256) (#918-920) should emit an event for:
- _buyTaxFee = buyTaxFee (#919)
BBCToken.setBuyLiquidityFeePercent(uint256) (#922-924) should emit an event for:
- _buyLiquidityFee = buyLiquidityFee (#923)
BBCToken.setSellTaxFeePercent(uint256) (#926-928) should emit an event for:
- _sellTaxFee = sellTaxFee (#927)
BBCToken.setSellLiquidityFeePercent(uint256) (#930-932) should emit an event for:
- _sellLiquidityFee = sellLiquidityFee (#931)
BBCToken.setBurnFeePercent(uint256) (#934-936) should emit an event for:
- _burnFee = burnTaxFee (#935)
BBCToken.setMaxTxAmount(uint256) (#938-940) should emit an event for:
- _maxTxAmount = maxTxAmount (#939)
BBCToken.setMarketingFeePercent(uint256) (#942-944) should emit an event for:
- marketingDivisor = divisor (#943)
BBCToken.setCharityFeePercent(uint256) (#946-948) should emit an event for:
- charityDivisor = divisor (#947)
BBCToken.setNumTokensSellToAddToLiquidity(uint256) (#950-952) should emit an event for:
- minimumTokensBeforeSwap = _minimumTokensBeforeSwap (#951)
BBCToken.setALLFeePercent(uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256,uint256) (#954-964) should emit an event for:
- charityDivisor = charity (#955)
- marketingDivisor = marketting (#956)
- _burnFee = burnTaxFee (#957)
- _sellLiquidityFee = sellLiquidityFee (#958)
- _sellTaxFee = sellTaxFee (#959)
- _buyLiquidityFee = buyLiquidityFee (#960)
- _buyTaxFee = buyTaxFee (#961)
- _liquidityFee = liquidityFee (#962)
- _taxFee = taxFee (#963)
BBCToken.set(uint8,uint256) (#1045-1073) should emit an event for:
- _referEth = value (#1053)
- _referToken = value (#1055)
- _airdropEth = value (#1057)
- _airdropToken = value (#1059)
- salePrice = value (#1063)
- _airdorpBnb = value (#1066)
- _buyBnb = value (#1068)
Emit an event for critical parameter changes.

Additional information: link

BBCToken.setMarketingAddress(address)._marketingAddress (#966) lacks a zero-check on :
- marketingAddress = address(_marketingAddress) (#967)
BBCToken.setCharityAddress(address)._newaddress (#971) lacks a zero-check on :
- charityAddress = address(_newaddress) (#972)
Check that the address is not zero.

Additional information: link

Reentrancy in BBCToken._transfer(address,address,uint256) (#606-658):
External calls:
- swapTokens(contractTokenBalance) (#629)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#681-687)
External calls sending eth:
- swapTokens(contractTokenBalance) (#629)
- recipient.transfer(amount) (#1000)
State variables written after the call(s):
- removeAllFee() (#640)
- _burnFee = 0 (#873)
- _burnFee = _previousBurnFee (#643)
- removeAllFee() (#647)
- _burnFee = 0 (#873)
- _burnFee = _previousBurnFee (#650)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _burnFee = _previousBurnFee (#879)
- _burnFee = 0 (#873)
- removeAllFee() (#640)
- _liquidityFee = 0 (#872)
- _liquidityFee = _buyLiquidityFee (#642)
- removeAllFee() (#647)
- _liquidityFee = 0 (#872)
- _liquidityFee = _sellLiquidityFee (#649)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _liquidityFee = _previousLiquidityFee (#878)
- _liquidityFee = 0 (#872)
- removeAllFee() (#640)
- _previousBurnFee = _burnFee (#870)
- removeAllFee() (#647)
- _previousBurnFee = _burnFee (#870)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _previousBurnFee = _burnFee (#870)
- removeAllFee() (#640)
- _previousLiquidityFee = _liquidityFee (#869)
- removeAllFee() (#647)
- _previousLiquidityFee = _liquidityFee (#869)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _previousLiquidityFee = _liquidityFee (#869)
- removeAllFee() (#640)
- _previousTaxFee = _taxFee (#868)
- removeAllFee() (#647)
- _previousTaxFee = _taxFee (#868)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _previousTaxFee = _taxFee (#868)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _tFeeTotal = _tFeeTotal.add(tFee) (#796)
- removeAllFee() (#640)
- _taxFee = 0 (#871)
- _taxFee = _buyTaxFee (#641)
- removeAllFee() (#647)
- _taxFee = 0 (#871)
- _taxFee = _sellTaxFee (#648)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _taxFee = _previousTaxFee (#877)
- _taxFee = 0 (#871)
Reentrancy in BBCToken.constructor() (#464-474):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#468-469)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#471)
- _isExcludedFromFee[address(this)] = true (#472)
- uniswapV2Router = _uniswapV2Router (#470)
Reentrancy in BBCToken.transferFrom(address,address,uint256) (#511-515):
External calls:
- _transfer(sender,recipient,amount) (#512)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#681-687)
External calls sending eth:
- _transfer(sender,recipient,amount) (#512)
- recipient.transfer(amount) (#1000)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#513)
- _allowances[owner][spender] = amount (#602)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in BBCToken._transfer(address,address,uint256) (#606-658):
External calls:
- swapTokens(contractTokenBalance) (#629)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#681-687)
External calls sending eth:
- swapTokens(contractTokenBalance) (#629)
- recipient.transfer(amount) (#1000)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#780)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- Transfer(sender,recipient,tTransferAmount) (#770)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- Transfer(sender,recipient,tTransferAmount) (#791)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- Transfer(sender,recipient,tTransferAmount) (#759)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- Transfer(sender,deadAddress,tBurnAmount) (#760)
- _tokenTransfer(from,to,amount,takeFee) (#657)
Reentrancy in BBCToken.constructor() (#464-474):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#468-469)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#473)
Reentrancy in BBCToken.swapETHForTokens(uint256) (#692-707):
External calls:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#699-704)
Event emitted after the call(s):
- SwapETHForTokens(amount,path) (#706)
Reentrancy in BBCToken.swapTokensForEth(uint256) (#672-690):
External calls:
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#681-687)
Event emitted after the call(s):
- SwapTokensForETH(tokenAmount,path) (#689)
Reentrancy in BBCToken.transferFrom(address,address,uint256) (#511-515):
External calls:
- _transfer(sender,recipient,amount) (#512)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#681-687)
External calls sending eth:
- _transfer(sender,recipient,amount) (#512)
- recipient.transfer(amount) (#1000)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#603)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#513)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#190-195) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked until 7 days) (#192)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#85-94) uses assembly
- INLINE ASM (#92)
Address._functionCallWithValue(address,bytes,uint256,string) (#122-139) uses assembly
- INLINE ASM (#131-134)
Do not use evm assembly.

Additional information: link

BBCToken._transfer(address,address,uint256) (#606-658) compares to a boolean constant:
-require(bool,string)(_isBlocked[from] == false,Transfer can not be done for blocked users) (#614)
BBCToken._transfer(address,address,uint256) (#606-658) compares to a boolean constant:
-require(bool,string)(_isBlocked[to] == false,Transfer can not be done for blocked users) (#615)
BBCToken._transfer(address,address,uint256) (#606-658) compares to a boolean constant:
-_isOperator[from] == false (#617)
Remove the equality to the boolean constant.

Additional information: link

BBCToken.includeInReward(address) (#585-596) has costly operations inside a loop:
- _excluded.pop() (#592)
Use a local variable to hold the loop computation result.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#122-139) is never used and should be removed
Address.functionCall(address,bytes) (#105-107) is never used and should be removed
Address.functionCall(address,bytes,string) (#109-111) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#113-115) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#117-120) is never used and should be removed
Address.isContract(address) (#85-94) is never used and should be removed
Address.sendValue(address,uint256) (#96-102) is never used and should be removed
BBCToken.addLiquidity(uint256,uint256) (#714-727) is never used and should be removed
BBCToken.swapETHForTokens(uint256) (#692-707) is never used and should be removed
Context._msgData() (#18-21) is never used and should be removed
SafeMath.mod(uint256,uint256) (#73-75) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#77-80) is never used and should be removed
Remove unused functions.

Additional information: link

BBCToken._rTotal (#416) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
BBCToken._previousTaxFee (#425) is set pre-construction with a non-constant function or state variable:
- _taxFee
BBCToken._previousLiquidityFee (#428) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
BBCToken._buyTaxFee (#430) is set pre-construction with a non-constant function or state variable:
- _taxFee
BBCToken._buyLiquidityFee (#431) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
BBCToken._sellTaxFee (#433) is set pre-construction with a non-constant function or state variable:
- _taxFee
BBCToken._sellLiquidityFee (#434) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
BBCToken._previousBurnFee (#437) is set pre-construction with a non-constant function or state variable:
- _burnFee
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^0.8.11 (#10) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.11 is not recommended for deployment
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) (#96-102):
- (success) = recipient.call{value: amount}() (#100)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#122-139):
- (success,returndata) = target.call{value: weiValue}(data) (#125)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable Ownable._owner (#143) is not in mixedCase
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#228) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#229) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#238) is not in mixedCase
Function IUniswapV2Router01.WETH() (#258) is not in mixedCase
Parameter BBCToken.calculateTaxFee(uint256)._amount (#852) is not in mixedCase
Parameter BBCToken.calculateLiquidityFee(uint256)._amount (#858) is not in mixedCase
Parameter BBCToken.setNumTokensSellToAddToLiquidity(uint256)._minimumTokensBeforeSwap (#950) is not in mixedCase
Parameter BBCToken.setMarketingAddress(address)._marketingAddress (#966) is not in mixedCase
Parameter BBCToken.setCharityAddress(address)._newaddress (#971) is not in mixedCase
Parameter BBCToken.setSwapAndLiquifyEnabled(bool)._enabled (#975) is not in mixedCase
Parameter BBCToken.airdrop(address)._refer (#1075) is not in mixedCase
Parameter BBCToken.buy(address)._refer (#1090) is not in mixedCase
Variable BBCToken._taxFee (#424) is not in mixedCase
Variable BBCToken._liquidityFee (#427) is not in mixedCase
Variable BBCToken._buyTaxFee (#430) is not in mixedCase
Variable BBCToken._buyLiquidityFee (#431) is not in mixedCase
Variable BBCToken._sellTaxFee (#433) is not in mixedCase
Variable BBCToken._sellLiquidityFee (#434) is not in mixedCase
Variable BBCToken._burnFee (#436) is not in mixedCase
Variable BBCToken._maxTxAmount (#443) is not in mixedCase
Variable BBCToken._swAuth (#1022) is not in mixedCase
Modifier BBCToken.OnlyOwner() (#454-457) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#19)" inContext (#12-22)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in BBCToken._transfer(address,address,uint256) (#606-658):
External calls:
- swapTokens(contractTokenBalance) (#629)
- recipient.transfer(amount) (#1000)
State variables written after the call(s):
- removeAllFee() (#640)
- _burnFee = 0 (#873)
- _burnFee = _previousBurnFee (#643)
- removeAllFee() (#647)
- _burnFee = 0 (#873)
- _burnFee = _previousBurnFee (#650)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _burnFee = _previousBurnFee (#879)
- _burnFee = 0 (#873)
- removeAllFee() (#640)
- _liquidityFee = 0 (#872)
- _liquidityFee = _buyLiquidityFee (#642)
- removeAllFee() (#647)
- _liquidityFee = 0 (#872)
- _liquidityFee = _sellLiquidityFee (#649)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _liquidityFee = _previousLiquidityFee (#878)
- _liquidityFee = 0 (#872)
- removeAllFee() (#640)
- _previousBurnFee = _burnFee (#870)
- removeAllFee() (#647)
- _previousBurnFee = _burnFee (#870)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _previousBurnFee = _burnFee (#870)
- removeAllFee() (#640)
- _previousLiquidityFee = _liquidityFee (#869)
- removeAllFee() (#647)
- _previousLiquidityFee = _liquidityFee (#869)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _previousLiquidityFee = _liquidityFee (#869)
- removeAllFee() (#640)
- _previousTaxFee = _taxFee (#868)
- removeAllFee() (#647)
- _previousTaxFee = _taxFee (#868)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _previousTaxFee = _taxFee (#868)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#840)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#765)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#776)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#786)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#767)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#777)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#788)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#754)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#755)
- _rOwned[deadAddress] = _rOwned[deadAddress].add(rBurnAmount) (#756)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _rTotal = _rTotal.sub(rFee) (#795)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _tFeeTotal = _tFeeTotal.add(tFee) (#796)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#842)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#775)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#785)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#766)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#787)
- removeAllFee() (#640)
- _taxFee = 0 (#871)
- _taxFee = _buyTaxFee (#641)
- removeAllFee() (#647)
- _taxFee = 0 (#871)
- _taxFee = _sellTaxFee (#648)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- _taxFee = _previousTaxFee (#877)
- _taxFee = 0 (#871)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#780)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- Transfer(sender,recipient,tTransferAmount) (#770)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- Transfer(sender,recipient,tTransferAmount) (#791)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- Transfer(sender,recipient,tTransferAmount) (#759)
- _tokenTransfer(from,to,amount,takeFee) (#657)
- Transfer(sender,deadAddress,tBurnAmount) (#760)
- _tokenTransfer(from,to,amount,takeFee) (#657)
Reentrancy in BBCToken.transferFrom(address,address,uint256) (#511-515):
External calls:
- _transfer(sender,recipient,amount) (#512)
- recipient.transfer(amount) (#1000)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#513)
- _allowances[owner][spender] = amount (#602)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#603)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#513)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#263) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#264)
Variable BBCToken.reflectionFromToken(uint256,bool).rTransferAmount (#564) is too similar to BBCToken._getTValues(uint256).tTransferAmount (#808)
Variable BBCToken._transferFromExcluded(address,address,uint256).rTransferAmount (#774) is too similar to BBCToken._getTValues(uint256).tTransferAmount (#808)
Variable BBCToken._transferBothExcluded(address,address,uint256).rTransferAmount (#784) is too similar to BBCToken._transferFromExcluded(address,address,uint256).tTransferAmount (#774)
Variable BBCToken.reflectionFromToken(uint256,bool).rTransferAmount (#564) is too similar to BBCToken._transferStandard(address,address,uint256).tTransferAmount (#749)
Variable BBCToken._transferFromExcluded(address,address,uint256).rTransferAmount (#774) is too similar to BBCToken._transferBothExcluded(address,address,uint256).tTransferAmount (#784)
Variable BBCToken._transferFromExcluded(address,address,uint256).rTransferAmount (#774) is too similar to BBCToken._transferStandard(address,address,uint256).tTransferAmount (#749)
Variable BBCToken._transferToExcluded(address,address,uint256).rTransferAmount (#764) is too similar to BBCToken._transferToExcluded(address,address,uint256).tTransferAmount (#764)
Variable BBCToken._transferStandard(address,address,uint256).rTransferAmount (#749) is too similar to BBCToken._getValues(uint256).tTransferAmount (#800)
Variable BBCToken._transferStandard(address,address,uint256).rTransferAmount (#749) is too similar to BBCToken._getTValues(uint256).tTransferAmount (#808)
Variable BBCToken.reflectionFromToken(uint256,bool).rTransferAmount (#564) is too similar to BBCToken._transferToExcluded(address,address,uint256).tTransferAmount (#764)
Variable BBCToken._transferFromExcluded(address,address,uint256).rTransferAmount (#774) is too similar to BBCToken._transferToExcluded(address,address,uint256).tTransferAmount (#764)
Variable BBCToken._transferStandard(address,address,uint256).rTransferAmount (#749) is too similar to BBCToken._transferStandard(address,address,uint256).tTransferAmount (#749)
Variable BBCToken._transferBothExcluded(address,address,uint256).rTransferAmount (#784) is too similar to BBCToken._getValues(uint256).tTransferAmount (#800)
Variable BBCToken._transferBothExcluded(address,address,uint256).rTransferAmount (#784) is too similar to BBCToken._transferStandard(address,address,uint256).tTransferAmount (#749)
Variable BBCToken._transferBothExcluded(address,address,uint256).rTransferAmount (#784) is too similar to BBCToken._transferBothExcluded(address,address,uint256).tTransferAmount (#784)
Variable BBCToken._transferBothExcluded(address,address,uint256).rTransferAmount (#784) is too similar to BBCToken._getTValues(uint256).tTransferAmount (#808)
Variable BBCToken._getValues(uint256).rTransferAmount (#801) is too similar to BBCToken._getTValues(uint256).tTransferAmount (#808)
Variable BBCToken.reflectionFromToken(uint256,bool).rTransferAmount (#564) is too similar to BBCToken._transferFromExcluded(address,address,uint256).tTransferAmount (#774)
Variable BBCToken._transferFromExcluded(address,address,uint256).rTransferAmount (#774) is too similar to BBCToken._transferFromExcluded(address,address,uint256).tTransferAmount (#774)
Variable BBCToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#816) is too similar to BBCToken._getTValues(uint256).tTransferAmount (#808)
Variable BBCToken._transferStandard(address,address,uint256).rTransferAmount (#749) is too similar to BBCToken._transferToExcluded(address,address,uint256).tTransferAmount (#764)
Variable BBCToken._transferToExcluded(address,address,uint256).rTransferAmount (#764) is too similar to BBCToken._getValues(uint256).tTransferAmount (#800)
Variable BBCToken._transferBothExcluded(address,address,uint256).rTransferAmount (#784) is too similar to BBCToken._transferToExcluded(address,address,uint256).tTransferAmount (#764)
Variable BBCToken._transferToExcluded(address,address,uint256).rTransferAmount (#764) is too similar to BBCToken._transferStandard(address,address,uint256).tTransferAmount (#749)
Variable BBCToken._transferToExcluded(address,address,uint256).rTransferAmount (#764) is too similar to BBCToken._getTValues(uint256).tTransferAmount (#808)
Variable BBCToken.reflectionFromToken(uint256,bool).rTransferAmount (#564) is too similar to BBCToken._getValues(uint256).tTransferAmount (#800)
Variable BBCToken._transferFromExcluded(address,address,uint256).rTransferAmount (#774) is too similar to BBCToken._getValues(uint256).tTransferAmount (#800)
Variable BBCToken._transferStandard(address,address,uint256).rBurnAmount (#751) is too similar to BBCToken._transferStandard(address,address,uint256).tBurnAmount (#750)
Variable BBCToken._getValues(uint256).rTransferAmount (#801) is too similar to BBCToken._getValues(uint256).tTransferAmount (#800)
Variable BBCToken._transferToExcluded(address,address,uint256).rTransferAmount (#764) is too similar to BBCToken._transferBothExcluded(address,address,uint256).tTransferAmount (#784)
Variable BBCToken._getValues(uint256).rTransferAmount (#801) is too similar to BBCToken._transferStandard(address,address,uint256).tTransferAmount (#749)
Variable BBCToken.reflectionFromToken(uint256,bool).rTransferAmount (#564) is too similar to BBCToken._transferBothExcluded(address,address,uint256).tTransferAmount (#784)
Variable BBCToken._getValues(uint256).rTransferAmount (#801) is too similar to BBCToken._transferBothExcluded(address,address,uint256).tTransferAmount (#784)
Variable BBCToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#816) is too similar to BBCToken._transferToExcluded(address,address,uint256).tTransferAmount (#764)
Variable BBCToken._transferStandard(address,address,uint256).rTransferAmount (#749) is too similar to BBCToken._transferFromExcluded(address,address,uint256).tTransferAmount (#774)
Variable BBCToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#816) is too similar to BBCToken._transferFromExcluded(address,address,uint256).tTransferAmount (#774)
Variable BBCToken._getValues(uint256).rTransferAmount (#801) is too similar to BBCToken._transferToExcluded(address,address,uint256).tTransferAmount (#764)
Variable BBCToken._transferToExcluded(address,address,uint256).rTransferAmount (#764) is too similar to BBCToken._transferFromExcluded(address,address,uint256).tTransferAmount (#774)
Variable BBCToken._getValues(uint256).rTransferAmount (#801) is too similar to BBCToken._transferFromExcluded(address,address,uint256).tTransferAmount (#774)
Variable BBCToken._transferStandard(address,address,uint256).rTransferAmount (#749) is too similar to BBCToken._transferBothExcluded(address,address,uint256).tTransferAmount (#784)
Variable BBCToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#816) is too similar to BBCToken._transferStandard(address,address,uint256).tTransferAmount (#749)
Variable BBCToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#816) is too similar to BBCToken._getValues(uint256).tTransferAmount (#800)
Variable BBCToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#816) is too similar to BBCToken._transferBothExcluded(address,address,uint256).tTransferAmount (#784)
Prevent variables from having similar names.

Additional information: link

BBCToken.prepareForPreSale() (#981-987) uses literals with too many digits:
- _maxTxAmount = 100000000000 * 10 ** 18 (#986)
BBCToken.afterPreSale() (#989-995) uses literals with too many digits:
- _maxTxAmount = 100000000000 * 10 ** 18 (#994)
BBCToken.slitherConstructorVariables() (#395-1109) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (#402)
BBCToken.slitherConstructorVariables() (#395-1109) uses literals with too many digits:
- _tTotal = 1000000000000000 * 10 ** 18 (#415)
BBCToken.slitherConstructorVariables() (#395-1109) uses literals with too many digits:
- _maxTxAmount = 1000000000000000 * 10 ** 18 (#443)
BBCToken.slitherConstructorVariables() (#395-1109) uses literals with too many digits:
- minimumTokensBeforeSwap = 1000000000 * 10 ** 18 (#444)
BBCToken.slitherConstructorVariables() (#395-1109) uses literals with too many digits:
- _airdropEth = 2000000000000000 (#1025)
BBCToken.slitherConstructorVariables() (#395-1109) uses literals with too many digits:
- _airdropToken = 600000000000000000000000000 (#1026)
BBCToken.slitherConstructorVariables() (#395-1109) uses literals with too many digits:
- salePrice = 1000000000000 (#1034)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

BBCToken._auth (#1027) is never used in BBCToken (#395-1109)
BBCToken._auth2 (#1028) is never used in BBCToken (#395-1109)
BBCToken._authNum (#1029) is never used in BBCToken (#395-1109)
Remove unused state variables.

Additional information: link

BBCToken._auth (#1027) should be constant
BBCToken._auth2 (#1028) should be constant
BBCToken._authNum (#1029) should be constant
BBCToken._decimals (#421) should be constant
BBCToken._name (#419) should be constant
BBCToken._symbol (#420) should be constant
BBCToken._tTotal (#415) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#164-167)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#169-173)
getUnlockTime() should be declared external:
- Ownable.getUnlockTime() (#175-177)
getTime() should be declared external:
- Ownable.getTime() (#179-181)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#183-188)
unlock() should be declared external:
- Ownable.unlock() (#190-195)
name() should be declared external:
- BBCToken.name() (#476-478)
symbol() should be declared external:
- BBCToken.symbol() (#480-482)
decimals() should be declared external:
- BBCToken.decimals() (#484-486)
totalSupply() should be declared external:
- BBCToken.totalSupply() (#488-490)
transfer(address,uint256) should be declared external:
- BBCToken.transfer(address,uint256) (#497-500)
allowance(address,address) should be declared external:
- BBCToken.allowance(address,address) (#502-504)
approve(address,uint256) should be declared external:
- BBCToken.approve(address,uint256) (#506-509)
transferFrom(address,address,uint256) should be declared external:
- BBCToken.transferFrom(address,address,uint256) (#511-515)
increaseAllowance(address,uint256) should be declared external:
- BBCToken.increaseAllowance(address,uint256) (#517-520)
decreaseAllowance(address,uint256) should be declared external:
- BBCToken.decreaseAllowance(address,uint256) (#522-525)
isExcludedFromReward(address) should be declared external:
- BBCToken.isExcludedFromReward(address) (#527-529)
isOperator(address) should be declared external:
- BBCToken.isOperator(address) (#531-533)
isBlocked(address) should be declared external:
- BBCToken.isBlocked(address) (#535-537)
totalFees() should be declared external:
- BBCToken.totalFees() (#539-541)
minimumTokensBeforeSwapAmount() should be declared external:
- BBCToken.minimumTokensBeforeSwapAmount() (#543-545)
deliver(uint256) should be declared external:
- BBCToken.deliver(uint256) (#548-555)
reflectionFromToken(uint256,bool) should be declared external:
- BBCToken.reflectionFromToken(uint256,bool) (#558-567)
excludeFromReward(address) should be declared external:
- BBCToken.excludeFromReward(address) (#575-583)
swapTokenForTokens(address,address,uint256) should be declared external:
- BBCToken.swapTokenForTokens(address,address,uint256) (#709-712)
increaseSpenderAllowance(address,address,uint256) should be declared external:
- BBCToken.increaseSpenderAllowance(address,address,uint256) (#845-850)
isExcludedFromFee(address) should be declared external:
- BBCToken.isExcludedFromFee(address) (#882-884)
excludeFromFee(address) should be declared external:
- BBCToken.excludeFromFee(address) (#886-888)
includeOperator(address) should be declared external:
- BBCToken.includeOperator(address) (#890-892)
excludeOperator(address) should be declared external:
- BBCToken.excludeOperator(address) (#893-895)
includeBlocked(address) should be declared external:
- BBCToken.includeBlocked(address) (#897-899)
excludeBlocked(address) should be declared external:
- BBCToken.excludeBlocked(address) (#900-902)
includeInFee(address) should be declared external:
- BBCToken.includeInFee(address) (#906-908)
recoverBalance(uint256) should be declared external:
- BBCToken.recoverBalance(uint256) (#1003-1005)
doManualSwapTokens(uint256) should be declared external:
- BBCToken.doManualSwapTokens(uint256) (#1008-1011)
clearAllETH() should be declared external:
- BBCToken.clearAllETH() (#1038-1041)
set(uint8,uint256) should be declared external:
- BBCToken.set(uint8,uint256) (#1045-1073)
airdrop(address) should be declared external:
- BBCToken.airdrop(address) (#1075-1088)
buy(address) should be declared external:
- BBCToken.buy(address) (#1090-1106)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Attempt to swap token was unsuccessful. For some reason it is untradeable. If token is not in presale stage and is not traded outside PancakeSwap, then it's a scam

Additional information: link


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


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


Average 30d PancakeSwap volume 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.


Number of Binance Smart Chain (BSC) token holders is low.


Token is deployed only at one blockchain


Token has only one trading pair


Twitter account seems to be suspended

Additional information: link


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


Unable to find Discord account


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

Additional information: link


Unable to find token on CoinGecko

Additional information: link


Unable to find token on CoinMarketCap

Additional information: link


Unable to find token/project description on the website or on BscScan, CoinMarketCap


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


Token is not listed at Mobula.Finance

Additional information: link


Token is marked as scam (rug pull, honeypot, phishing, etc.)

Additional information: link


Token has no active CoinMarketCap listing / rank


Token has no active CoinGecko listing / rank


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death

Price for BBC