MRCAT [MR Cat Coin] Token

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

Reentrancy in mrcatcoin._transfer(address,address,uint256) (#813-849):
External calls:
- swapAndSendToFee(sellTokens) (#835)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#883-889)
External calls sending eth:
- swapAndSendToFee(sellTokens) (#835)
- address(_marketingWallet).transfer(ethToSend) (#856)
State variables written after the call(s):
- _tOwned[from] -= amount (#839)
- transferAmount = _getValues(amount,from) (#844)
- _tOwned[address(this)] += marketingFee + liquidityFee (#795)
- _tOwned[to] += transferAmount (#847)
- swapping = false (#836)
Apply the check-effects-interactions pattern.

Additional information: link

mrcatcoin._transfer(address,address,uint256) (#813-849) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(_lastBuy[to] + _buyCooldown < block.timestamp,Must wait til after coooldown to buy) (#827)
mrcatcoin.addLiquidity(uint256,uint256) (#893-909) uses timestamp for comparisons
Dangerous comparisons:
- ethAmount - ethFromLiquidity > 0 (#907)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#287-296) uses assembly
- INLINE ASM (#294)
Address._functionCallWithValue(address,bytes,uint256,string) (#380-401) uses assembly
- INLINE ASM (#393-396)
Do not use evm assembly.

Additional information: link

mrcatcoin.allowance(address,address).owner (#754) shadows:
- Ownable.owner() (#433-435) (function)
mrcatcoin._approve(address,address,uint256).owner (#805) shadows:
- Ownable.owner() (#433-435) (function)
Rename the local variables that shadow another component.

Additional information: link

Reentrancy in mrcatcoin.constructor() (#711-727):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#716)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#722)
- _isExcludedFromFee[address(this)] = true (#723)
- _isExcludedFromFee[_marketingWallet] = true (#724)
- uniswapV2Pair = _uniswapV2Pair (#719)
- uniswapV2Router = _uniswapV2Router (#718)
Reentrancy in mrcatcoin.swapAndLiquify() (#859-871):
External calls:
- newBalance = swapTokensForEth(half) (#864)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#883-889)
- addLiquidity(otherHalf,newBalance) (#868)
- (ethFromLiquidity) = uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#898-905)
- (success) = recipient.call{value: amount}() (#318)
- address(_marketingWallet).sendValue(ethAmount - ethFromLiquidity) (#908)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#868)
- (ethFromLiquidity) = uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#898-905)
- (success) = recipient.call{value: amount}() (#318)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#868)
- _allowances[owner][spender] = amount (#809)
Reentrancy in mrcatcoin.transferFrom(address,address,uint256) (#763-767):
External calls:
- _transfer(sender,recipient,amount) (#764)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#883-889)
External calls sending eth:
- _transfer(sender,recipient,amount) (#764)
- address(_marketingWallet).transfer(ethToSend) (#856)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (#765)
- _allowances[owner][spender] = amount (#809)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in mrcatcoin._transfer(address,address,uint256) (#813-849):
External calls:
- swapAndSendToFee(sellTokens) (#835)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#883-889)
External calls sending eth:
- swapAndSendToFee(sellTokens) (#835)
- address(_marketingWallet).transfer(ethToSend) (#856)
Event emitted after the call(s):
- Transfer(from,address(this),marketingFee + liquidityFee) (#796)
- transferAmount = _getValues(amount,from) (#844)
- Transfer(from,to,transferAmount) (#848)
Reentrancy in mrcatcoin.constructor() (#711-727):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#716)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#726)
Reentrancy in mrcatcoin.swapAndLiquify() (#859-871):
External calls:
- newBalance = swapTokensForEth(half) (#864)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#883-889)
- addLiquidity(otherHalf,newBalance) (#868)
- (ethFromLiquidity) = uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#898-905)
- (success) = recipient.call{value: amount}() (#318)
- address(_marketingWallet).sendValue(ethAmount - ethFromLiquidity) (#908)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#868)
- (ethFromLiquidity) = uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#898-905)
- (success) = recipient.call{value: amount}() (#318)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#810)
- addLiquidity(otherHalf,newBalance) (#868)
- SwapAndLiquify(half,newBalance,otherHalf) (#869)
Reentrancy in mrcatcoin.transferFrom(address,address,uint256) (#763-767):
External calls:
- _transfer(sender,recipient,amount) (#764)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#883-889)
External calls sending eth:
- _transfer(sender,recipient,amount) (#764)
- address(_marketingWallet).transfer(ethToSend) (#856)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#810)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (#765)
Apply the check-effects-interactions pattern.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#380-401) is never used and should be removed
Address.functionCall(address,bytes) (#340-342) is never used and should be removed
Address.functionCall(address,bytes,string) (#350-352) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#365-367) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#375-378) is never used and should be removed
Address.isContract(address) (#287-296) is never used and should be removed
Address.sendValue(address,uint256) (#314-320) is never used and should be removed
Context._msgData() (#259-262) is never used and should be removed
SafeMath.add(uint256,uint256) (#122-127) is never used and should be removed
SafeMath.div(uint256,uint256) (#196-198) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#212-218) is never used and should be removed
SafeMath.mod(uint256,uint256) (#232-234) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#248-251) is never used and should be removed
SafeMath.mul(uint256,uint256) (#170-182) is never used and should be removed
SafeMath.sub(uint256,uint256) (#139-141) is never used and should be removed
SafeMath.sub(uint256,uint256,string) (#153-158) is never used and should be removed
mrcatcoin.addLiquidity(uint256,uint256) (#893-909) is never used and should be removed
mrcatcoin.swapAndLiquify() (#859-871) is never used and should be removed
Remove unused functions.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#314-320):
- (success) = recipient.call{value: amount}() (#318)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#380-401):
- (success,returndata) = target.call{value: weiValue}(data) (#384)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#504) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#505) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#522) is not in mixedCase
Function IUniswapV2Router01.WETH() (#544) is not in mixedCase
Contract mrcatcoin (#681-911) is not in CapWords
Variable mrcatcoin._maxTxAmount (#694) is not in mixedCase
Constant mrcatcoin._name (#696) is not in UPPER_CASE_WITH_UNDERSCORES
Constant mrcatcoin._symbol (#697) is not in UPPER_CASE_WITH_UNDERSCORES
Constant mrcatcoin._decimals (#698) is not in UPPER_CASE_WITH_UNDERSCORES
Variable mrcatcoin._marketingFee (#700) is not in mixedCase
Variable mrcatcoin._liquidityFee (#701) is not in mixedCase
Variable mrcatcoin._buyCooldown (#704) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#260)" inContext (#254-263)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in mrcatcoin._transfer(address,address,uint256) (#813-849):
External calls:
- swapAndSendToFee(sellTokens) (#835)
- address(_marketingWallet).transfer(ethToSend) (#856)
State variables written after the call(s):
- _tOwned[from] -= amount (#839)
- transferAmount = _getValues(amount,from) (#844)
- _tOwned[address(this)] += marketingFee + liquidityFee (#795)
- _tOwned[to] += transferAmount (#847)
- swapping = false (#836)
Event emitted after the call(s):
- Transfer(from,address(this),marketingFee + liquidityFee) (#796)
- transferAmount = _getValues(amount,from) (#844)
- Transfer(from,to,transferAmount) (#848)
Reentrancy in mrcatcoin.transferFrom(address,address,uint256) (#763-767):
External calls:
- _transfer(sender,recipient,amount) (#764)
- address(_marketingWallet).transfer(ethToSend) (#856)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (#765)
- _allowances[owner][spender] = amount (#809)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#810)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (#765)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#549) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#550)
Prevent variables from having similar names.

Additional information: link

Address.sendValue(address,uint256) (#314-320) uses literals with too many digits:
- recipient = address(0x000000000000000000000000000000000000dEaD) (#316)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

mrcatcoin._buyCooldown (#704) should be constant
mrcatcoin._liquidityFee (#701) should be constant
mrcatcoin._marketingFee (#700) should be constant
mrcatcoin._marketingWallet (#702) should be constant
mrcatcoin._maxTxAmount (#694) should be constant
mrcatcoin._tTotal (#693) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#452-455)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#461-465)
name() should be declared external:
- mrcatcoin.name() (#729-731)
symbol() should be declared external:
- mrcatcoin.symbol() (#733-735)
decimals() should be declared external:
- mrcatcoin.decimals() (#737-739)
totalSupply() should be declared external:
- mrcatcoin.totalSupply() (#741-743)
transfer(address,uint256) should be declared external:
- mrcatcoin.transfer(address,uint256) (#749-752)
allowance(address,address) should be declared external:
- mrcatcoin.allowance(address,address) (#754-756)
approve(address,uint256) should be declared external:
- mrcatcoin.approve(address,uint256) (#758-761)
transferFrom(address,address,uint256) should be declared external:
- mrcatcoin.transferFrom(address,address,uint256) (#763-767)
increaseAllowance(address,uint256) should be declared external:
- mrcatcoin.increaseAllowance(address,uint256) (#769-772)
decreaseAllowance(address,uint256) should be declared external:
- mrcatcoin.decreaseAllowance(address,uint256) (#774-777)
excludeFromFee(address) should be declared external:
- mrcatcoin.excludeFromFee(address) (#779-781)
includeInFee(address) should be declared external:
- mrcatcoin.includeInFee(address) (#783-785)
isExcludedFromFee(address) should be declared external:
- mrcatcoin.isExcludedFromFee(address) (#801-803)
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.

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

Token is deployed only at one blockchain

Token has only one trading pair

Contract has 5% buy tax and 7% sell tax.
Taxes are low and contract ownership is renounced.

Unable to find website, listings and other project-related information

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank