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ACE [BURNACEM] Token

ALERT: unclassified scam

About ACE

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Token 15 months
CoinMarketCap 15 months

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white paper

Burnace provides a number of unique and useful features that create a win-win situation for our investors even when they are asleep.

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Laser Scorebeta Last Audit: 30 November 2021

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Token seems to be a scam (type: unclassified scam).

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

Reentrancy in BurnaceM._transfer(address,address,uint256) (#1106-1167):
External calls:
- swapAndLiquify(contractTokenBalance) (#1141)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1264-1271)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1235-1241)
- buyBackTokens(balance.div(100)) (#1150)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (#1251-1256)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1141)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1264-1271)
- buyBackTokens(balance.div(100)) (#1150)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (#1251-1256)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1166)
- _burnFee = _previousBurnFee (#1089)
- _burnFee = 0 (#1081)
- _tokenTransfer(from,to,amount,takeFee) (#1166)
- _buybackFee = _previousBuybackFee (#1091)
- _buybackFee = 0 (#1083)
- _tokenTransfer(from,to,amount,takeFee) (#1166)
- _liquidityFee = _previousLiquidityFee (#1088)
- _liquidityFee = 0 (#1080)
- _tokenTransfer(from,to,amount,takeFee) (#1166)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#1053)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1306)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1297)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1317)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1327)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1298)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1318)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1308)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1329)
- _tokenTransfer(from,to,amount,takeFee) (#1166)
- _rTotal = _rTotal.sub(rFee) (#1008)
- _tokenTransfer(from,to,amount,takeFee) (#1166)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#1055)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1316)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1326)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1307)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1328)
- _tokenTransfer(from,to,amount,takeFee) (#1166)
- _walletFee = _previousWalletFee (#1090)
- _walletFee = 0 (#1082)
- buyBackTokens(balance.div(100)) (#1150)
- inSwapAndLiquify = true (#797)
- inSwapAndLiquify = false (#799)
Apply the check-effects-interactions pattern.

Additional information: link

BurnaceM.recoverBEP20(address,uint256) (#1351-1355) ignores return value by IERC20(tokenAddress).transfer(owner(),tokenAmount) (#1354)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

BurnaceM.setAllFeePercent(uint8,uint8,uint8,uint8,uint8) (#958-969) contains a tautology or contradiction:
- require(bool,string)(burnFee >= 0 && burnFee <= maxBurnFee,BF err) (#961)
Fix the incorrect comparison by changing the value type or the comparison.

Additional information: link


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.

BurnaceM.swapAndLiquify(uint256) (#1169-1218) performs a multiplication on the result of a division:
-spentAmount = contractTokenBalance.div(totFee).mul(_buybackFee) (#1188)
Consider ordering multiplication before division.

Additional information: link

BurnaceM.addLiquidity(uint256,uint256) (#1259-1272) ignores return value by pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1264-1271)
Ensure that all the return values of the function calls are used.

Additional information: link

BurnaceM._approve(address,address,uint256).owner (#1098) shadows:
- Ownable.owner() (#507-509) (function)
Rename the local variables that shadow another component.

Additional information: link

BurnaceM.setMaxWalletPercent(uint256) (#986-991) should emit an event for:
- _maxWalletAmount = _tTotal.mul(maxWalletPercent).div(10 ** 2) (#988-990)
Emit an event for critical parameter changes.

Additional information: link

BurnaceM.constructor(address,string,string,uint8,uint256,uint8,uint8,address)._feeWallet (#805) lacks a zero-check on :
- feeWallet = _feeWallet (#816)
Check that the address is not zero.

Additional information: link

Reentrancy in BurnaceM.transferFrom(address,address,uint256) (#877-881):
External calls:
- _transfer(sender,recipient,amount) (#878)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1264-1271)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (#1251-1256)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1235-1241)
External calls sending eth:
- _transfer(sender,recipient,amount) (#878)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1264-1271)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (#1251-1256)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#879)
- _allowances[owner][spender] = amount (#1102)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in BurnaceM.transferFrom(address,address,uint256) (#877-881):
External calls:
- _transfer(sender,recipient,amount) (#878)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1264-1271)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (#1251-1256)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1235-1241)
External calls sending eth:
- _transfer(sender,recipient,amount) (#878)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1264-1271)
- pcsV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,dead,block.timestamp.add(300)) (#1251-1256)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1103)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#879)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#554-559) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked) (#556)
Avoid relying on block.timestamp.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#385-406) uses assembly
- INLINE ASM (#398-401)
Do not use evm assembly.

Additional information: link

SafeMath.mod(uint256,uint256,string) (#253-256) is never used and should be removed
Remove unused functions.

Additional information: link

BurnaceM._previousBuybackFee (#775) is set pre-construction with a non-constant function or state variable:
- _buybackFee
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

solc-0.8.6 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._functionCallWithValue(address,bytes,uint256,string) (#385-406):
- (success,returndata) = target.call{value: weiValue}(data) (#389)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable BurnaceM._maxWalletAmount (#785) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#265)" inContext (#259-268)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable BurnaceM._transferStandard(address,address,uint256).rTransferAmount (#1296) is too similar to BurnaceM._transferToExcluded(address,address,uint256).tTransferAmount (#1305)
Prevent variables from having similar names.

Additional information: link

BurnaceM.slitherConstructorVariables() (#724-1357) uses literals with too many digits:
- dead = 0x000000000000000000000000000000000000dEaD (#729)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

BurnaceM.router (#748) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

recoverBEP20(address,uint256) should be declared external:
- BurnaceM.recoverBEP20(address,uint256) (#1351-1355)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


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


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.


Twitter account link seems to be invalid


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


Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap

Additional information: link


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


Young tokens have high risks of scam / 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

Price for ACE