LAMA [Metalama] Token

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

Reentrancy in Metalama._transfer(address,address,uint256) (#987-1038):
External calls:
- swapAndLiquify(numTokensSellToAddToLiquidity) (#1034)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
- UniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1107-1113)
- treasuryAddress.sendValue(treasuryFee) (#1093)
External calls sending eth:
- swapAndLiquify(numTokensSellToAddToLiquidity) (#1034)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1037)
- _rOwned[address(this)] += rToSwap (#894)
- _rOwned[sender] -= s.rAmount (#1056)
- _rOwned[recipient] += s.rTransferAmount (#1057)
- _tokenTransfer(from,to,amount,takeFee) (#1037)
- _rTotal -= rRfi (#889)
- _tokenTransfer(from,to,amount,takeFee) (#1037)
- _tOwned[address(this)] += tToSwap (#895)
- _tOwned[sender] -= tAmount (#1050)
- _tOwned[recipient] += s.tTransferAmount (#1053)
Reentrancy in Metalama.transferFrom(address,address,uint256) (#742-759):
External calls:
- _transfer(sender,recipient,amount) (#747)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
- UniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1107-1113)
- treasuryAddress.sendValue(treasuryFee) (#1093)
External calls sending eth:
- _transfer(sender,recipient,amount) (#747)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
State variables written after the call(s):
- _approve(sender,_msgSender(),currentAllowance - amount) (#755)
- _allowances[owner][spender] = amount (#983)
Apply the check-effects-interactions pattern.

Additional information: link

Metalama.addLiquidity(uint256,uint256) (#1116-1127) ignores return value by UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
Ensure that all the return values of the function calls are used.

Additional information: link

Metalama.allowance(address,address).owner (#724) shadows:
- Ownable.owner() (#57-59) (function)
Metalama._approve(address,address,uint256).owner (#977) shadows:
- Ownable.owner() (#57-59) (function)
Rename the local variables that shadow another component.

Additional information: link

Metalama.setMaxTransactionAmount(uint256,uint256) (#1167-1173) should emit an event for:
- maxTxAmountBuy = _maxTxAmountBuy * 10 ** _decimals (#1171)
- maxTxAmountSell = _maxTxAmountSell * 10 ** _decimals (#1172)
Metalama.setNumTokensSellToAddToLiq(uint256) (#1175-1180) should emit an event for:
- numTokensSellToAddToLiquidity = amountTokens * 10 ** _decimals (#1179)
Emit an event for critical parameter changes.

Additional information: link

Metalama.setTreasuryAddress(address)._treasuryAddress (#1182) lacks a zero-check on :
- treasuryAddress = _treasuryAddress (#1186)
Check that the address is not zero.

Additional information: link

Reentrancy in Metalama._transfer(address,address,uint256) (#987-1038):
External calls:
- swapAndLiquify(numTokensSellToAddToLiquidity) (#1034)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
- UniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1107-1113)
- treasuryAddress.sendValue(treasuryFee) (#1093)
External calls sending eth:
- swapAndLiquify(numTokensSellToAddToLiquidity) (#1034)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1037)
- totFeesPaid.rfi += tRfi (#890)
- totFeesPaid.toSwap += tToSwap (#896)
Reentrancy in Metalama.constructor() (#669-690):
External calls:
- uniswapPair = IUniswapV2Factory(_UniswapV2Router.factory()).createPair(address(this),_UniswapV2Router.WETH()) (#673)
State variables written after the call(s):
- UniswapV2Router = _UniswapV2Router (#676)
- _isExcludedFromFee[owner()] = true (#679)
- _isExcludedFromFee[treasuryAddress] = true (#680)
- _isExcludedFromFee[address(this)] = true (#681)
- _isExcludedFromMaxWallet[owner()] = true (#683)
- _isExcludedFromMaxWallet[treasuryAddress] = true (#684)
- _isExcludedFromMaxWallet[address(this)] = true (#685)
- _isExcludedFromMaxWallet[uniswapPair] = true (#687)
- _rOwned[owner()] = _rTotal (#677)
- isAutomatedMarketMakerPair[uniswapPair] = true (#674)
- treasuryAddress = address(msg.sender) (#678)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Metalama._transfer(address,address,uint256) (#987-1038):
External calls:
- swapAndLiquify(numTokensSellToAddToLiquidity) (#1034)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
- UniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1107-1113)
- treasuryAddress.sendValue(treasuryFee) (#1093)
External calls sending eth:
- swapAndLiquify(numTokensSellToAddToLiquidity) (#1034)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
Event emitted after the call(s):
- Transfer(sender,address(this),s.tToSwap) (#1061)
- _tokenTransfer(from,to,amount,takeFee) (#1037)
- Transfer(sender,recipient,s.tTransferAmount) (#1068)
- _tokenTransfer(from,to,amount,takeFee) (#1037)
Reentrancy in Metalama.addLiquidity(uint256,uint256) (#1116-1127):
External calls:
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
Event emitted after the call(s):
- LiquidityAdded(tokenAmount,ETHAmount) (#1126)
Reentrancy in Metalama.constructor() (#669-690):
External calls:
- uniswapPair = IUniswapV2Factory(_UniswapV2Router.factory()).createPair(address(this),_UniswapV2Router.WETH()) (#673)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(uniswapPair,true) (#675)
- Transfer(address(0),owner(),_tTotal) (#689)
Reentrancy in Metalama.swapAndLiquify(uint256) (#1071-1094):
External calls:
- swapTokensForETH(toSwap) (#1080)
- UniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1107-1113)
- addLiquidity(tokensToAddLiquidityWith,ETHToAddLiquidityWith) (#1087)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
External calls sending eth:
- addLiquidity(tokensToAddLiquidityWith,ETHToAddLiquidityWith) (#1087)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
Event emitted after the call(s):
- LiquidityAdded(tokenAmount,ETHAmount) (#1126)
- addLiquidity(tokensToAddLiquidityWith,ETHToAddLiquidityWith) (#1087)
Reentrancy in Metalama.transferFrom(address,address,uint256) (#742-759):
External calls:
- _transfer(sender,recipient,amount) (#747)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
- UniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1107-1113)
- treasuryAddress.sendValue(treasuryFee) (#1093)
External calls sending eth:
- _transfer(sender,recipient,amount) (#747)
- UniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1118-1125)
- (success) = recipient.call{value: amount}() (#402)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#984)
- _approve(sender,_msgSender(),currentAllowance - amount) (#755)
Apply the check-effects-interactions pattern.

Additional information: link

Address.isContract(address) (#371-381) uses assembly
- INLINE ASM (#377-379)
Address.verifyCallResult(bool,bytes,string) (#540-560) uses assembly
- INLINE ASM (#552-555)
Do not use evm assembly.

Additional information: link

Different versions of Solidity is used:
- Version used: ['>=0.5.0', '>=0.6.2', '^0.8.0']
- ^0.8.0 (#3)
- ^0.8.0 (#28)
- ^0.8.0 (#99)
- >=0.6.2 (#182)
- >=0.6.2 (#281)
- >=0.5.0 (#327)
- ^0.8.0 (#348)
- ^0.8.0 (#565)
Use one Solidity version.

Additional information: link

Metalama.includeInReward(address) (#833-844) has costly operations inside a loop:
- _excluded.pop() (#840)
Use a local variable to hold the loop computation result.

Additional information: link

Address.functionCall(address,bytes) (#424-426) is never used and should be removed
Address.functionCall(address,bytes,string) (#434-440) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#453-459) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#467-478) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#513-515) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#523-532) is never used and should be removed
Address.functionStaticCall(address,bytes) (#486-488) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#496-505) is never used and should be removed
Address.isContract(address) (#371-381) is never used and should be removed
Address.verifyCallResult(bool,bytes,string) (#540-560) is never used and should be removed
Context._msgData() (#20-22) is never used and should be removed
Remove unused functions.

Additional information: link

Metalama._rTotal (#585) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
Metalama.maxTxAmountBuy (#587) is set pre-construction with a non-constant function or state variable:
- _tTotal / 1000
Metalama.maxTxAmountSell (#588) is set pre-construction with a non-constant function or state variable:
- _tTotal / 1000
Metalama.maxWalletAmount (#589) is set pre-construction with a non-constant function or state variable:
- _tTotal / 500
Metalama.numTokensSellToAddToLiquidity (#607) is set pre-construction with a non-constant function or state variable:
- _tTotal / 500
Metalama.appliedRates (#632) is set pre-construction with a non-constant function or state variable:
- buyRates
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^0.8.0 (#3) allows old versions
Pragma version^0.8.0 (#28) allows old versions
Pragma version^0.8.0 (#99) allows old versions
Pragma version>=0.6.2 (#182) allows old versions
Pragma version>=0.6.2 (#281) allows old versions
Pragma version>=0.5.0 (#327) allows old versions
Pragma version^0.8.0 (#348) allows old versions
Pragma version^0.8.0 (#565) allows old versions
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.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#399-404):
- (success) = recipient.call{value: amount}() (#402)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#467-478):
- (success,returndata) = target.call{value: value}(data) (#476)
Low level call in Address.functionStaticCall(address,bytes,string) (#496-505):
- (success,returndata) = target.staticcall(data) (#503)
Low level call in Address.functionDelegateCall(address,bytes,string) (#523-532):
- (success,returndata) = target.delegatecall(data) (#530)
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() (#186) is not in mixedCase
Struct Metalama.feeRatesStruct (#609-614) is not in CapWords
Struct Metalama.valuesFromGetValues (#640-648) is not in CapWords
Parameter Metalama.setSwapAndLiquifyEnabled(bool)._enabled (#880) is not in mixedCase
Parameter Metalama.addLiquidity(uint256,uint256).ETHAmount (#1116) is not in mixedCase
Parameter Metalama.setAutomatedMarketMakerPair(address,bool)._pair (#1129) is not in mixedCase
Parameter Metalama.setBuyFees(uint8,uint8,uint8)._rfi (#1146) is not in mixedCase
Parameter Metalama.setBuyFees(uint8,uint8,uint8)._treasury (#1147) is not in mixedCase
Parameter Metalama.setBuyFees(uint8,uint8,uint8)._lp (#1148) is not in mixedCase
Parameter Metalama.setSellFees(uint8,uint8,uint8)._rfi (#1157) is not in mixedCase
Parameter Metalama.setSellFees(uint8,uint8,uint8)._treasury (#1158) is not in mixedCase
Parameter Metalama.setSellFees(uint8,uint8,uint8)._lp (#1159) is not in mixedCase
Parameter Metalama.setMaxTransactionAmount(uint256,uint256)._maxTxAmountBuy (#1168) is not in mixedCase
Parameter Metalama.setMaxTransactionAmount(uint256,uint256)._maxTxAmountSell (#1169) is not in mixedCase
Parameter Metalama.setTreasuryAddress(address)._treasuryAddress (#1182) is not in mixedCase
Parameter Metalama.setMaxWalletAmount(uint256)._maxWalletAmount (#1203) is not in mixedCase
Constant Metalama._decimals (#581) is not in UPPER_CASE_WITH_UNDERSCORES
Constant Metalama._name (#599) is not in UPPER_CASE_WITH_UNDERSCORES
Constant Metalama._symbol (#600) is not in UPPER_CASE_WITH_UNDERSCORES
Variable Metalama.UniswapV2Router (#604) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#191) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#192)
Prevent variables from having similar names.

Additional information: link

Metalama._tTotal (#584) should be constant
Metalama.blocksToWait (#593) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#76-78)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#84-87)
name() should be declared external:
- Metalama.name() (#693-695)
symbol() should be declared external:
- Metalama.symbol() (#697-699)
decimals() should be declared external:
- Metalama.decimals() (#701-703)
totalSupply() should be declared external:
- Metalama.totalSupply() (#706-708)
transfer(address,uint256) should be declared external:
- Metalama.transfer(address,uint256) (#715-722)
approve(address,uint256) should be declared external:
- Metalama.approve(address,uint256) (#733-740)
transferFrom(address,address,uint256) should be declared external:
- Metalama.transferFrom(address,address,uint256) (#742-759)
increaseAllowance(address,uint256) should be declared external:
- Metalama.increaseAllowance(address,uint256) (#761-772)
decreaseAllowance(address,uint256) should be declared external:
- Metalama.decreaseAllowance(address,uint256) (#774-789)
isExcludedFromReward(address) should be declared external:
- Metalama.isExcludedFromReward(address) (#791-793)
reflectionFromToken(uint256,bool) should be declared external:
- Metalama.reflectionFromToken(uint256,bool) (#795-808)
excludeMultipleAccountsFromMaxWallet(address[],bool) should be declared external:
- Metalama.excludeMultipleAccountsFromMaxWallet(address[],bool) (#850-862)
isExcludedFromFee(address) should be declared external:
- Metalama.isExcludedFromFee(address) (#868-870)
isExcludedFromMaxWallet(address) should be declared external:
- Metalama.isExcludedFromMaxWallet(address) (#872-878)
setSwapAndLiquifyEnabled(bool) should be declared external:
- Metalama.setSwapAndLiquifyEnabled(bool) (#880-883)
Use the external attribute for functions never called from the contract.

Additional information: link

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

Unable to find PancakeSwap trading pair to compute liquidity.

Unable to find PancakeSwap trading pair to compute volume.

Unable to find PancakeSwap trading pair to compute number of swaps.

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

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

Young tokens have high risks of price dump / death

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

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

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinGecko rank

Token has relatively low CoinMarketCap rank