Shuriken [Shuriken Coin] Token

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

Reentrancy in Shuriken._transfer(address,address,uint256) (#273-331):
External calls:
- swapTokensForEth(contractTokenBalance) (#301)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#338-344)
External calls sending eth:
- sendETHToFee(address(this).balance) (#304)
- _marketingAddress.transfer(amount) (#348)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _rOwned[address(this)] = _rOwned[address(this)].add(rTeam) (#385)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#375)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#376)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _rTotal = _rTotal.sub(rFee) (#389)
Apply the check-effects-interactions pattern.

Additional information: link

Shuriken._redisFee (#148) is set pre-construction with a non-constant function or state variable:
- _redisFeeOnSell
Shuriken._taxFee (#149) is set pre-construction with a non-constant function or state variable:
- _taxFeeOnSell
Shuriken._previousredisFee (#151) is set pre-construction with a non-constant function or state variable:
- _redisFee
Shuriken._previoustaxFee (#152) is set pre-construction with a non-constant function or state variable:
- _taxFee
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.

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Pragma version0.8.9 (#3) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.9 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.

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Function IUniswapV2Router02.WETH() (#117) is not in mixedCase
Parameter Shuriken.setTrading(bool)._tradingOpen (#351) is not in mixedCase
Parameter Shuriken.toggleSwap(bool)._swapEnabled (#450) is not in mixedCase
Constant Shuriken._name (#126) is not in UPPER_CASE_WITH_UNDERSCORES
Constant Shuriken._symbol (#127) is not in UPPER_CASE_WITH_UNDERSCORES
Constant Shuriken._decimals (#128) is not in UPPER_CASE_WITH_UNDERSCORES
Constant Shuriken._tTotal (#135) is not in UPPER_CASE_WITH_UNDERSCORES
Variable Shuriken._maxTxAmount (#166) is not in mixedCase
Variable Shuriken._maxWalletSize (#167) is not in mixedCase
Variable Shuriken._swapTokensAtAmount (#168) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Ownable._previousOwner (#34) is never used in Shuriken (#122-468)
Shuriken._tOwned (#131) is never used in Shuriken (#122-468)
Shuriken.cooldown (#155) is never used in Shuriken (#122-468)
Remove unused state variables.

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Shuriken.slitherConstructorVariables() (#122-468) uses literals with too many digits:
- _maxTxAmount = 1000000000000000 * 10 ** 9 (#166)
Shuriken.slitherConstructorVariables() (#122-468) uses literals with too many digits:
- _maxWalletSize = 1000000000000000 * 10 ** 9 (#167)
Shuriken.slitherConstructorVariables() (#122-468) uses literals with too many digits:
- _swapTokensAtAmount = 1000000000000000 * 10 ** 9 (#168)
Shuriken.slitherConstructorConstantVariables() (#122-468) uses literals with too many digits:
- _tTotal = 1000000000000000 * 10 ** 9 (#135)
Use: Ether suffix, Time suffix, or The scientific notation

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Ownable._previousOwner (#34) should be constant
Shuriken._marketingAddress (#157) should be constant
Add the constant attributes to state variables that never change.

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Shuriken.allowance(address,address).owner (#220) shadows:
- Ownable.owner() (#46-48) (function)
Shuriken._approve(address,address,uint256).owner (#266) shadows:
- Ownable.owner() (#46-48) (function)
Rename the local variables that shadow another component.

Additional information: link

Shuriken.setFee(uint256,uint256,uint256,uint256) (#436-442) should emit an event for:
- _redisFeeOnBuy = redisFeeOnBuy (#437)
- _redisFeeOnSell = redisFeeOnSell (#438)
- _taxFeeOnBuy = taxFeeOnBuy (#440)
- _taxFeeOnSell = taxFeeOnSell (#441)
Shuriken.setMaxTxnAmount(uint256) (#455-457) should emit an event for:
- _maxTxAmount = maxTxAmount (#456)
Shuriken.setMaxWalletSize(uint256) (#459-461) should emit an event for:
- _maxWalletSize = maxWalletSize (#460)
Emit an event for critical parameter changes.

Additional information: link

Reentrancy in Shuriken._transfer(address,address,uint256) (#273-331):
External calls:
- swapTokensForEth(contractTokenBalance) (#301)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#338-344)
External calls sending eth:
- sendETHToFee(address(this).balance) (#304)
- _marketingAddress.transfer(amount) (#348)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _previousredisFee = _redisFee (#254)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _previoustaxFee = _taxFee (#255)
- _redisFee = _redisFeeOnBuy (#318)
- _redisFee = _redisFeeOnSell (#324)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _redisFee = _previousredisFee (#262)
- _redisFee = 0 (#257)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _tFeeTotal = _tFeeTotal.add(tFee) (#390)
- _taxFee = _taxFeeOnBuy (#319)
- _taxFee = _taxFeeOnSell (#325)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _taxFee = _previoustaxFee (#263)
- _taxFee = 0 (#258)
Reentrancy in Shuriken.constructor() (#177-193):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#183-184)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#186)
- _isExcludedFromFee[address(this)] = true (#187)
- _isExcludedFromFee[_marketingAddress] = true (#188)
- preTrader[owner()] = true (#190)
Reentrancy in Shuriken.transferFrom(address,address,uint256) (#229-240):
External calls:
- _transfer(sender,recipient,amount) (#230)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#338-344)
External calls sending eth:
- _transfer(sender,recipient,amount) (#230)
- _marketingAddress.transfer(amount) (#348)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#231-238)
- _allowances[owner][spender] = amount (#269)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Shuriken._transfer(address,address,uint256) (#273-331):
External calls:
- swapTokensForEth(contractTokenBalance) (#301)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#338-344)
External calls sending eth:
- sendETHToFee(address(this).balance) (#304)
- _marketingAddress.transfer(amount) (#348)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#379)
- _tokenTransfer(from,to,amount,takeFee) (#330)
Reentrancy in Shuriken.constructor() (#177-193):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#183-184)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#192)
Reentrancy in Shuriken.transferFrom(address,address,uint256) (#229-240):
External calls:
- _transfer(sender,recipient,amount) (#230)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#338-344)
External calls sending eth:
- _transfer(sender,recipient,amount) (#230)
- _marketingAddress.transfer(amount) (#348)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#270)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#231-238)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Shuriken._transfer(address,address,uint256) (#273-331):
External calls:
- sendETHToFee(address(this).balance) (#304)
- _marketingAddress.transfer(amount) (#348)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _previousredisFee = _redisFee (#254)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _previoustaxFee = _taxFee (#255)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _rOwned[address(this)] = _rOwned[address(this)].add(rTeam) (#385)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#375)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#376)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _rTotal = _rTotal.sub(rFee) (#389)
- _redisFee = _redisFeeOnBuy (#318)
- _redisFee = _redisFeeOnSell (#324)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _redisFee = _previousredisFee (#262)
- _redisFee = 0 (#257)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _tFeeTotal = _tFeeTotal.add(tFee) (#390)
- _taxFee = _taxFeeOnBuy (#319)
- _taxFee = _taxFeeOnSell (#325)
- _tokenTransfer(from,to,amount,takeFee) (#330)
- _taxFee = _previoustaxFee (#263)
- _taxFee = 0 (#258)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#379)
- _tokenTransfer(from,to,amount,takeFee) (#330)
Reentrancy in Shuriken.transferFrom(address,address,uint256) (#229-240):
External calls:
- _transfer(sender,recipient,amount) (#230)
- _marketingAddress.transfer(amount) (#348)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#231-238)
- _allowances[owner][spender] = amount (#269)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#270)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#231-238)
Apply the check-effects-interactions pattern.

Additional information: link

Variable Shuriken._transferStandard(address,address,uint256).rTransferAmount (#374) is too similar to Shuriken._transferStandard(address,address,uint256).tTransferAmount (#374)
Variable Shuriken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#417) is too similar to Shuriken._getTValues(uint256,uint256,uint256).tTransferAmount (#408)
Variable Shuriken._transferStandard(address,address,uint256).rTransferAmount (#374) is too similar to Shuriken._getTValues(uint256,uint256,uint256).tTransferAmount (#408)
Variable Shuriken._getValues(uint256).rTransferAmount (#399) is too similar to Shuriken._getTValues(uint256,uint256,uint256).tTransferAmount (#408)
Variable Shuriken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#417) is too similar to Shuriken._transferStandard(address,address,uint256).tTransferAmount (#374)
Variable Shuriken._getValues(uint256).rTransferAmount (#399) is too similar to Shuriken._transferStandard(address,address,uint256).tTransferAmount (#374)
Variable Shuriken._transferStandard(address,address,uint256).rTransferAmount (#374) is too similar to Shuriken._getValues(uint256).tTransferAmount (#396)
Variable Shuriken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#417) is too similar to Shuriken._getValues(uint256).tTransferAmount (#396)
Variable Shuriken._getValues(uint256).rTransferAmount (#399) is too similar to Shuriken._getValues(uint256).tTransferAmount (#396)
Prevent variables from having similar names.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#55-58)
name() should be declared external:
- Shuriken.name() (#195-197)
symbol() should be declared external:
- Shuriken.symbol() (#199-201)
decimals() should be declared external:
- Shuriken.decimals() (#203-205)
totalSupply() should be declared external:
- Shuriken.totalSupply() (#207-209)
transfer(address,uint256) should be declared external:
- Shuriken.transfer(address,uint256) (#215-218)
allowance(address,address) should be declared external:
- Shuriken.allowance(address,address) (#220-222)
approve(address,uint256) should be declared external:
- Shuriken.approve(address,uint256) (#224-227)
transferFrom(address,address,uint256) should be declared external:
- Shuriken.transferFrom(address,address,uint256) (#229-240)
setTrading(bool) should be declared external:
- Shuriken.setTrading(bool) (#351-353)
setFee(uint256,uint256,uint256,uint256) should be declared external:
- Shuriken.setFee(uint256,uint256,uint256,uint256) (#436-442)
toggleSwap(bool) should be declared external:
- Shuriken.toggleSwap(bool) (#450-452)
setMaxTxnAmount(uint256) should be declared external:
- Shuriken.setMaxTxnAmount(uint256) (#455-457)
setMaxWalletSize(uint256) should be declared external:
- Shuriken.setMaxWalletSize(uint256) (#459-461)
allowPreTrading(address,bool) should be declared external:
- Shuriken.allowPreTrading(address,bool) (#463-466)
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 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.

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

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

Token is deployed only at one blockchain

Token has only one trading pair

Contract has 9% buy tax and 6% sell tax.
Taxes are low and contract ownership is renounced.

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

Unable to find token contract audit

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

Unable to verify token contract address on the website

Unable to find audit link on the website

Unable to find whitepaper link on the website

Unable to find Telegram link on the website

Unable to find Twitter 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

Token is marked as risky (blacklisted creator, fake name, dead project, etc.)

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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

Young tokens have high risks of price dump / death