666 [BlackSheep] Token

BlackSheep._swapContractToken(bool) (blacksheep.sol#290-329) sends eth to arbitrary user
Dangerous calls:
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

BlackSheep.LiquidityRelease() (blacksheep.sol#439-453) ignores return value by liquidityToken.transfer(msg.sender,amount) (blacksheep.sol#451)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

Too many vulnerabilities (Unchecked transfer, Reentrancy vulnerability, etc.). High risk of a scam. DYOR & manual audit are advised.

Reentrancy in BlackSheep._LimitlessFonctionTransfer(address,address,uint256) (blacksheep.sol#181-220):
External calls:
- _swapContractToken(false) (blacksheep.sol#203)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- _pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,address(this),block.timestamp) (blacksheep.sol#337-344)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
External calls sending eth:
- _swapContractToken(false) (blacksheep.sol#203)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
State variables written after the call(s):
- _balances[sender] -= amount (blacksheep.sol#212)
- _balances[address(this)] += contractToken (blacksheep.sol#214)
- _balances[recipient] += taxedAmount (blacksheep.sol#217)
- _circulatingSupply -= tokensToBeBurnt (blacksheep.sol#216)
Reentrancy in BlackSheep._taxedTransfer(address,address,uint256) (blacksheep.sol#118-160):
External calls:
- _swapContractToken(false) (blacksheep.sol#143)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- _pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,address(this),block.timestamp) (blacksheep.sol#337-344)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
External calls sending eth:
- _swapContractToken(false) (blacksheep.sol#143)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
State variables written after the call(s):
- _balances[sender] -= amount (blacksheep.sol#152)
- _balances[address(this)] += contractToken (blacksheep.sol#154)
- _balances[recipient] += taxedAmount (blacksheep.sol#157)
- _circulatingSupply -= tokensToBeBurnt (blacksheep.sol#156)
Apply the check-effects-interactions pattern.

Additional information: link

Contract ownership is not renounced (belongs to a wallet)

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

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.

BlackSheep._swapContractToken(bool).sent (blacksheep.sol#327) is written in both
(sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
sent = true (blacksheep.sol#328)
Fix or remove the writes.

Additional information: link

Low level call in BlackSheep._swapContractToken(bool) (blacksheep.sol#290-329):
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

BlackSheep._addLiquidity(uint256,uint256) (blacksheep.sol#347-357) ignores return value by _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
Ensure that all the return values of the function calls are used.

Additional information: link

BlackSheep.allowance(address,address)._owner (blacksheep.sol#490) shadows:
- Ownable._owner (Libraries.sol#47) (state variable)
BlackSheep._approve(address,address,uint256).owner (blacksheep.sol#498) shadows:
- Ownable.owner() (Libraries.sol#63-65) (function)
Rename the local variables that shadow another component.

Additional information: link

BlackSheep.ChangeMarketingWallet(address).newWallet (blacksheep.sol#52) lacks a zero-check on :
- marketingWallet = newWallet (blacksheep.sol#54)
Check that the address is not zero.

Additional information: link

Reentrancy in BlackSheep.LiquidityRelease() (blacksheep.sol#439-453):
External calls:
- liquidityToken.transfer(msg.sender,amount) (blacksheep.sol#451)
Event emitted after the call(s):
- OnReleaseLP() (blacksheep.sol#452)
Reentrancy in BlackSheep._LimitlessFonctionTransfer(address,address,uint256) (blacksheep.sol#181-220):
External calls:
- _swapContractToken(false) (blacksheep.sol#203)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- _pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,address(this),block.timestamp) (blacksheep.sol#337-344)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
External calls sending eth:
- _swapContractToken(false) (blacksheep.sol#203)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
Event emitted after the call(s):
- Transfer(sender,recipient,taxedAmount) (blacksheep.sol#219)
Reentrancy in BlackSheep._swapContractToken(bool) (blacksheep.sol#290-329):
External calls:
- _swapTokenForBNB(swapToken) (blacksheep.sol#318)
- _pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,address(this),block.timestamp) (blacksheep.sol#337-344)
- _addLiquidity(LiqHalf,liqBNB) (blacksheep.sol#324)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
External calls sending eth:
- _addLiquidity(LiqHalf,liqBNB) (blacksheep.sol#324)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
Event emitted after the call(s):
- Approval(owner,spender,amount) (blacksheep.sol#503)
- _addLiquidity(LiqHalf,liqBNB) (blacksheep.sol#324)
Reentrancy in BlackSheep._taxedTransfer(address,address,uint256) (blacksheep.sol#118-160):
External calls:
- _swapContractToken(false) (blacksheep.sol#143)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- _pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,address(this),block.timestamp) (blacksheep.sol#337-344)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
External calls sending eth:
- _swapContractToken(false) (blacksheep.sol#143)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
Event emitted after the call(s):
- Transfer(sender,recipient,taxedAmount) (blacksheep.sol#159)
Reentrancy in BlackSheep.transferFrom(address,address,uint256) (blacksheep.sol#506-514):
External calls:
- _transfer(sender,recipient,amount) (blacksheep.sol#507)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- _pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,address(this),block.timestamp) (blacksheep.sol#337-344)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
External calls sending eth:
- _transfer(sender,recipient,amount) (blacksheep.sol#507)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
Event emitted after the call(s):
- Approval(owner,spender,amount) (blacksheep.sol#503)
- _approve(sender,msg.sender,currentAllowance - amount) (blacksheep.sol#512)
Apply the check-effects-interactions pattern.

Additional information: link

Function IPancakeRouter.WETH() (Libraries.sol#42) is not in mixedCase
Function BlackSheep.ChangeMarketingWallet(address) (blacksheep.sol#52-55) is not in mixedCase
Function BlackSheep._LimitlessFonctionTransfer(address,address,uint256) (blacksheep.sol#181-220) is not in mixedCase
Function BlackSheep.SetOverLiquifiedTreshold(uint256) (blacksheep.sol#243-246) is not in mixedCase
Function BlackSheep.SetTaxes(uint256,uint256,uint256,uint256,uint256,uint256) (blacksheep.sol#250-262) is not in mixedCase
Function BlackSheep.SetLimit(uint256) (blacksheep.sol#265-270) is not in mixedCase
Parameter BlackSheep.SetLimit(uint256).LimitV2 (blacksheep.sol#265) is not in mixedCase
Function BlackSheep.SetSell(uint256) (blacksheep.sol#273-278) is not in mixedCase
Parameter BlackSheep.SetSell(uint256).LimitSell2 (blacksheep.sol#273) is not in mixedCase
Function BlackSheep.SetAMM(address,bool) (blacksheep.sol#374-377) is not in mixedCase
Parameter BlackSheep.SetAMM(address,bool).AMM (blacksheep.sol#374) is not in mixedCase
Parameter BlackSheep.SetAMM(address,bool).Add (blacksheep.sol#374) is not in mixedCase
Function BlackSheep.SwitchManualSwap(bool) (blacksheep.sol#381-383) is not in mixedCase
Function BlackSheep.SwapContractToken() (blacksheep.sol#385-387) is not in mixedCase
Function BlackSheep.ExcludeAccountFromFees(address,bool) (blacksheep.sol#390-394) is not in mixedCase
Function BlackSheep.ExcludedFromLimit(address,bool) (blacksheep.sol#399-403) is not in mixedCase
Function BlackSheep.SetupEnableTrading() (blacksheep.sol#410-414) is not in mixedCase
Function BlackSheep.LockLiquidityForSeconds(uint256) (blacksheep.sol#427-429) is not in mixedCase
Function BlackSheep.LiquidityRelease() (blacksheep.sol#439-453) is not in mixedCase
Parameter BlackSheep.allowance(address,address)._owner (blacksheep.sol#490) is not in mixedCase
Constant BlackSheep._name (blacksheep.sol#17) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BlackSheep._symbol (blacksheep.sol#18) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BlackSheep._decimals (blacksheep.sol#19) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BlackSheep.InitialSupply (blacksheep.sol#20) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BlackSheep.DefaultLiquidityLockTime (blacksheep.sol#22) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BlackSheep.PancakeRouter (blacksheep.sol#26) is not in UPPER_CASE_WITH_UNDERSCORES
Variable BlackSheep.LimitV (blacksheep.sol#41) is not in mixedCase
Variable BlackSheep.LimitSell (blacksheep.sol#42) is not in mixedCase
Variable BlackSheep.LaunchTimestamp (blacksheep.sol#409) is not in mixedCase
Variable BlackSheep._liquidityUnlockTime (blacksheep.sol#419) is not in mixedCase
Variable BlackSheep.LPReleaseLimitedTo20Percent (blacksheep.sol#420) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

BlackSheep.setSwapTreshold(uint256) (blacksheep.sol#237-240) should emit an event for:
- swapTreshold = newSwapTresholdPermille (blacksheep.sol#239)
BlackSheep.SetOverLiquifiedTreshold(uint256) (blacksheep.sol#243-246) should emit an event for:
- overLiquifyTreshold = newOverLiquifyTresholdPermille (blacksheep.sol#245)
Emit an event for critical parameter changes.

Additional information: link

BlackSheep.SetTaxes(uint256,uint256,uint256,uint256,uint256,uint256) (blacksheep.sol#250-262) performs a multiplication on the result of a division:
-maxTax = 9 * (TAX_DENOMINATOR / MAXTAXDENOMINATOR) (blacksheep.sol#251)
BlackSheep._swapContractToken(bool) (blacksheep.sol#290-329) performs a multiplication on the result of a division:
-tokenToSwap = _balances[_pancakePairAddress] * swapTreshold / 1000 (blacksheep.sol#294)
-tokenForLiquidity = (tokenToSwap * liquidityTax) / totalTax (blacksheep.sol#307-309)
BlackSheep._swapContractToken(bool) (blacksheep.sol#290-329) performs a multiplication on the result of a division:
-LiqHalf = tokenForLiquidity / 2 (blacksheep.sol#313)
-liqBNB = (newBNB * LiqHalf) / swapToken (blacksheep.sol#323)
Consider ordering multiplication before division.

Additional information: link

Reentrancy in BlackSheep._swapContractToken(bool) (blacksheep.sol#290-329):
External calls:
- _swapTokenForBNB(swapToken) (blacksheep.sol#318)
- _pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,address(this),block.timestamp) (blacksheep.sol#337-344)
- _addLiquidity(LiqHalf,liqBNB) (blacksheep.sol#324)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
External calls sending eth:
- _addLiquidity(LiqHalf,liqBNB) (blacksheep.sol#324)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
State variables written after the call(s):
- _addLiquidity(LiqHalf,liqBNB) (blacksheep.sol#324)
- _allowances[owner][spender] = amount (blacksheep.sol#502)
Reentrancy in BlackSheep.constructor() (blacksheep.sol#69-86):
External calls:
- _pancakePairAddress = IPancakeFactory(_pancakeRouter.factory()).createPair(address(this),_pancakeRouter.WETH()) (blacksheep.sol#77)
State variables written after the call(s):
- excludedFromFees[msg.sender] = true (blacksheep.sol#83)
- excludedFromFees[PancakeRouter] = true (blacksheep.sol#84)
- excludedFromFees[address(this)] = true (blacksheep.sol#85)
- isAMM[_pancakePairAddress] = true (blacksheep.sol#78)
- marketingWallet = msg.sender (blacksheep.sol#81)
Reentrancy in BlackSheep.transferFrom(address,address,uint256) (blacksheep.sol#506-514):
External calls:
- _transfer(sender,recipient,amount) (blacksheep.sol#507)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- _pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,address(this),block.timestamp) (blacksheep.sol#337-344)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
External calls sending eth:
- _transfer(sender,recipient,amount) (blacksheep.sol#507)
- _pancakeRouter.addLiquidityETH{value: bnbamount}(address(this),tokenamount,0,0,address(this),block.timestamp) (blacksheep.sol#349-356)
- (sent) = marketingWallet.call{value: address(this).balance}() (blacksheep.sol#327)
State variables written after the call(s):
- _approve(sender,msg.sender,currentAllowance - amount) (blacksheep.sol#512)
- _allowances[owner][spender] = amount (blacksheep.sol#502)
Apply the check-effects-interactions pattern.

Additional information: link

BlackSheep._transfer(address,address,uint256) (blacksheep.sol#97-115) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(LaunchTimestamp > 0,trading not yet enabled) (blacksheep.sol#107)
- require(bool,string)(LaunchTimestamp > 0,trading not yet enabled) (blacksheep.sol#112)
BlackSheep._taxedTransfer(address,address,uint256) (blacksheep.sol#118-160) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(senderBalance >= amount,Transfer exceeds balance) (blacksheep.sol#121)
- require(bool,string)(senderBalance / LimitSell >= amount,Transfer exceeds authorise sell) (blacksheep.sol#122)
- require(bool,string)((recipientBalance + amount) <= InitialSupply / LimitV,Wallet contain more than certain % Total Supply) (blacksheep.sol#123)
- block.timestamp < LaunchTimestamp + SellTaxDuration (blacksheep.sol#131)
- block.timestamp < LaunchTimestamp + BuyTaxDuration (blacksheep.sol#137)
BlackSheep._feelessTransfer(address,address,uint256) (blacksheep.sol#173-179) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(senderBalance >= amount,Transfer exceeds balance) (blacksheep.sol#175)
BlackSheep._LimitlessFonctionTransfer(address,address,uint256) (blacksheep.sol#181-220) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(senderBalance >= amount,Transfer exceeds balance) (blacksheep.sol#183)
- block.timestamp < LaunchTimestamp + SellTaxDuration (blacksheep.sol#191)
- block.timestamp < LaunchTimestamp + BuyTaxDuration (blacksheep.sol#197)
BlackSheep.isOverLiquified() (blacksheep.sol#283-285) uses timestamp for comparisons
Dangerous comparisons:
- _balances[_pancakePairAddress] > _circulatingSupply * overLiquifyTreshold / 1000 (blacksheep.sol#284)
BlackSheep.getLiquidityReleaseTimeInSeconds() (blacksheep.sol#362-366) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp < _liquidityUnlockTime (blacksheep.sol#363)
BlackSheep.SetupEnableTrading() (blacksheep.sol#410-414) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(LaunchTimestamp == 0,AlreadyLaunched) (blacksheep.sol#411)
BlackSheep._prolongLiquidityLock(uint256) (blacksheep.sol#431-436) uses timestamp for comparisons
Dangerous comparisons:
- require(bool)(newUnlockTime > _liquidityUnlockTime) (blacksheep.sol#433)
BlackSheep.LiquidityRelease() (blacksheep.sol#439-453) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp >= _liquidityUnlockTime,Not yet unlocked) (blacksheep.sol#441)
Avoid relying on block.timestamp.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (Libraries.sol#82-85)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (Libraries.sol#91-95)
ChangeMarketingWallet(address) should be declared external:
- BlackSheep.ChangeMarketingWallet(address) (blacksheep.sol#52-55)
setSwapTreshold(uint256) should be declared external:
- BlackSheep.setSwapTreshold(uint256) (blacksheep.sol#237-240)
SetOverLiquifiedTreshold(uint256) should be declared external:
- BlackSheep.SetOverLiquifiedTreshold(uint256) (blacksheep.sol#243-246)
SetTaxes(uint256,uint256,uint256,uint256,uint256,uint256) should be declared external:
- BlackSheep.SetTaxes(uint256,uint256,uint256,uint256,uint256,uint256) (blacksheep.sol#250-262)
SetLimit(uint256) should be declared external:
- BlackSheep.SetLimit(uint256) (blacksheep.sol#265-270)
SetSell(uint256) should be declared external:
- BlackSheep.SetSell(uint256) (blacksheep.sol#273-278)
getLiquidityReleaseTimeInSeconds() should be declared external:
- BlackSheep.getLiquidityReleaseTimeInSeconds() (blacksheep.sol#362-366)
getBurnedTokens() should be declared external:
- BlackSheep.getBurnedTokens() (blacksheep.sol#367-369)
SetAMM(address,bool) should be declared external:
- BlackSheep.SetAMM(address,bool) (blacksheep.sol#374-377)
SwitchManualSwap(bool) should be declared external:
- BlackSheep.SwitchManualSwap(bool) (blacksheep.sol#381-383)
SwapContractToken() should be declared external:
- BlackSheep.SwapContractToken() (blacksheep.sol#385-387)
ExcludeAccountFromFees(address,bool) should be declared external:
- BlackSheep.ExcludeAccountFromFees(address,bool) (blacksheep.sol#390-394)
ExcludedFromLimit(address,bool) should be declared external:
- BlackSheep.ExcludedFromLimit(address,bool) (blacksheep.sol#399-403)
SetupEnableTrading() should be declared external:
- BlackSheep.SetupEnableTrading() (blacksheep.sol#410-414)
limitLiquidityReleaseTo20Percent() should be declared external:
- BlackSheep.limitLiquidityReleaseTo20Percent() (blacksheep.sol#423-425)
LockLiquidityForSeconds(uint256) should be declared external:
- BlackSheep.LockLiquidityForSeconds(uint256) (blacksheep.sol#427-429)
LiquidityRelease() should be declared external:
- BlackSheep.LiquidityRelease() (blacksheep.sol#439-453)
Use the external attribute for functions never called from the contract.

Additional information: link

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

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

Token is deployed only at one blockchain

Token has only one trading pair

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

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Unable to find token on CoinGecko

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Unable to find token on CoinMarketCap

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

Unable to find KYC or doxxing proof

Unable to verify token contract address on the website

Unable to find audit link on the website

Token is not listed at Mobula.Finance

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Unable to find token on CoinHunt

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Unable to find code repository for the project

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

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

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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