HE Token

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

HEToken.addLiquidity(uint256,uint256) (#743-755) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in HEToken._transfer(address,address,uint256) (#651-710):
External calls:
- swapTokensForEth(ma,marketAddress) (#683)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
- swapAndLiquify(la) (#690)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
External calls sending eth:
- swapAndLiquify(la) (#690)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,param) (#709)
- _rOwned[sender] = _rOwned[sender].sub(param.rAmount) (#833)
- _rOwned[sender] = _rOwned[sender].sub(param.rAmount) (#824)
- _rOwned[sender] = _rOwned[sender].sub(param.rAmount) (#814)
- _rOwned[recipient] = _rOwned[recipient].add(param.rTransferAmount) (#825)
- _rOwned[to] = _rOwned[to].add(rValue) (#585)
- _rOwned[sender] = _rOwned[sender].sub(param.rAmount) (#844)
- _rOwned[recipient] = _rOwned[recipient].add(param.rTransferAmount) (#845)
- _rOwned[recipient] = _rOwned[recipient].add(param.rTransferAmount) (#835)
- _rOwned[recipient] = _rOwned[recipient].add(param.rTransferAmount) (#816)
- _tokenTransfer(from,to,amount,param) (#709)
- _rTotal = _rTotal.sub(rFee) (#634)
- _tokenTransfer(from,to,amount,param) (#709)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#843)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#813)
- _tOwned[recipient] = _tOwned[recipient].add(param.tTransferAmount) (#834)
- _tOwned[recipient] = _tOwned[recipient].add(param.tTransferAmount) (#815)
- _tOwned[to] = _tOwned[to].add(tValue) (#587)
- inSwapAndLiquify = false (#693)
- _tokenTransfer(from,to,amount,param) (#709)
- liquifyAmount += param.tLiquidity (#777)
- _tokenTransfer(from,to,amount,param) (#709)
- marketAmount += param.tMarket (#782)
Apply the check-effects-interactions pattern.

Additional information: link

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.

HEToken.constructor(address,address,address,address,address) (#367-404) performs a multiplication on the result of a division:
-lastSendTaxTime = block.timestamp / 86400 * 86400 (#399)
HEToken._getValues(uint256,bool,address,address) (#532-563) performs a multiplication on the result of a division:
-tFee = tAmount * _totalFee / 1000 (#549)
-rFee = tFee.mul(currentRate) (#550)
HEToken._getCurrentZeroTime() (#807-809) performs a multiplication on the result of a division:
-block.timestamp / 86400 * 86400 (#808)
Consider ordering multiplication before division.

Additional information: link

HEToken.addLiquidity(uint256,uint256) (#743-755) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
Ensure that all the return values of the function calls are used.

Additional information: link

HEToken.allowance(address,address).owner (#448) shadows:
- Ownable.owner() (#207-209) (function)
HEToken.getForefathers(address,uint256).owner (#592) shadows:
- Ownable.owner() (#207-209) (function)
HEToken._approve(address,address,uint256).owner (#642) shadows:
- Ownable.owner() (#207-209) (function)
Rename the local variables that shadow another component.

Additional information: link

HEToken.setMaxTx(uint256) (#410-412) should emit an event for:
- _maxTxAmount = maxTx (#411)
HEToken.setSendTaxProid(uint256) (#418-420) should emit an event for:
- sendTaxProid = proid (#419)
Emit an event for critical parameter changes.

Additional information: link

Ownable.transferOwnership(address).newOwner (#216) lacks a zero-check on :
- _owner = newOwner (#218)
HEToken.constructor(address,address,address,address,address)._holder (#370) lacks a zero-check on :
- holder = _holder (#374)
HEToken.constructor(address,address,address,address,address)._wbnb (#368) lacks a zero-check on :
- wbnb = _wbnb (#375)
HEToken.constructor(address,address,address,address,address)._marketAddress (#371) lacks a zero-check on :
- marketAddress = _marketAddress (#376)
HEToken.constructor(address,address,address,address,address)._uniswapV2Pair (#387-388) lacks a zero-check on :
- uniswapV2Pair = _uniswapV2Pair (#390)
HEToken.setMarketAddress(address).m (#406) lacks a zero-check on :
- marketAddress = m (#407)
Check that the address is not zero.

Additional information: link

Reentrancy in HEToken._transfer(address,address,uint256) (#651-710):
External calls:
- swapTokensForEth(ma,marketAddress) (#683)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
State variables written after the call(s):
- liquifyAmount = 0 (#689)
Reentrancy in HEToken._transfer(address,address,uint256) (#651-710):
External calls:
- swapTokensForEth(ma,marketAddress) (#683)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
- swapAndLiquify(la) (#690)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
External calls sending eth:
- swapAndLiquify(la) (#690)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
State variables written after the call(s):
- swapAndLiquify(la) (#690)
- _allowances[owner][spender] = amount (#646)
- _tokenTransfer(from,to,amount,param) (#709)
- _tFeeTotal = _tFeeTotal.add(tFee) (#635)
- _tokenTransfer(from,to,amount,param) (#709)
- lastSendTaxTime = time (#799)
- _tokenTransfer(from,to,amount,param) (#709)
- taxAmount += param.tTax (#790)
- taxAmount = 0 (#798)
Reentrancy in HEToken.constructor(address,address,address,address,address) (#367-404):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),wbnb) (#387-388)
State variables written after the call(s):
- _isExcludedFromFee[holder] = true (#394)
- _isExcludedFromFee[address(this)] = true (#395)
- _owner = msg.sender (#397)
- ammPairs[uniswapV2Pair] = true (#392)
- initPoolAddress[_initPoolAddress] = true (#402)
- lastSendTaxTime = block.timestamp / 86400 * 86400 (#399)
- sendTaxProid = 604800 (#400)
- uniswapV2Pair = _uniswapV2Pair (#390)
Reentrancy in HEToken.swapAndLiquify(uint256) (#712-724):
External calls:
- swapTokensForEth(half,address(this)) (#719)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
- addLiquidity(otherHalf,newBalance) (#723)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#723)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#723)
- _allowances[owner][spender] = amount (#646)
Reentrancy in HEToken.transferFrom(address,address,uint256) (#457-461):
External calls:
- _transfer(sender,recipient,amount) (#458)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
External calls sending eth:
- _transfer(sender,recipient,amount) (#458)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#459)
- _allowances[owner][spender] = amount (#646)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in HEToken._transfer(address,address,uint256) (#651-710):
External calls:
- swapTokensForEth(ma,marketAddress) (#683)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
- swapAndLiquify(la) (#690)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
External calls sending eth:
- swapAndLiquify(la) (#690)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#647)
- swapAndLiquify(la) (#690)
- Transfer(sender,recipient,param.tTransferAmount) (#826)
- _tokenTransfer(from,to,amount,param) (#709)
- Transfer(sender,recipient,param.tTransferAmount) (#846)
- _tokenTransfer(from,to,amount,param) (#709)
- Transfer(sender,recipient,param.tTransferAmount) (#836)
- _tokenTransfer(from,to,amount,param) (#709)
- Transfer(sender,recipient,param.tTransferAmount) (#817)
- _tokenTransfer(from,to,amount,param) (#709)
- Transfer(from,to,tValue) (#589)
- _tokenTransfer(from,to,amount,param) (#709)
Reentrancy in HEToken.constructor(address,address,address,address,address) (#367-404):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),wbnb) (#387-388)
Event emitted after the call(s):
- Transfer(address(0),holder,_tTotal) (#403)
Reentrancy in HEToken.swapAndLiquify(uint256) (#712-724):
External calls:
- swapTokensForEth(half,address(this)) (#719)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
- addLiquidity(otherHalf,newBalance) (#723)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#723)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#647)
- addLiquidity(otherHalf,newBalance) (#723)
Reentrancy in HEToken.transferFrom(address,address,uint256) (#457-461):
External calls:
- _transfer(sender,recipient,amount) (#458)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,to,block.timestamp) (#734-740)
External calls sending eth:
- _transfer(sender,recipient,amount) (#458)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,holder,block.timestamp) (#747-754)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#647)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#459)
Apply the check-effects-interactions pattern.

Additional information: link

HEToken._takeFee(HEToken.Param,address) (#771-804) uses timestamp for comparisons
Dangerous comparisons:
- time - lastSendTaxTime >= sendTaxProid && taxAmount > 0 (#794-795)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#143-148) uses assembly
- INLINE ASM (#146)
Address._functionCallWithValue(address,bytes,uint256,string) (#178-199) uses assembly
- INLINE ASM (#191-194)
HEToken._isContract(address) (#860-864) uses assembly
- INLINE ASM (#862)
Do not use evm assembly.

Additional information: link

HEToken.includeInReward(address) (#496-507) has costly operations inside a loop:
- _excluded.pop() (#503)
Use a local variable to hold the loop computation result.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#178-199) is never used and should be removed
Address.functionCall(address,bytes) (#158-160) is never used and should be removed
Address.functionCall(address,bytes,string) (#163-165) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#168-170) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#173-176) is never used and should be removed
Address.isContract(address) (#143-148) is never used and should be removed
Address.sendValue(address,uint256) (#150-156) is never used and should be removed
Context._msgData() (#135-138) is never used and should be removed
SafeMath.mod(uint256,uint256) (#119-121) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#124-127) is never used and should be removed
TransferHelper.safeApprove(address,address,uint256) (#273-277) is never used and should be removed
TransferHelper.safeTransferFrom(address,address,address,uint256) (#285-289) is never used and should be removed
Remove unused functions.

Additional information: link

HEToken._rTotal (#313) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
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

Low level call in Address.sendValue(address,uint256) (#150-156):
- (success) = recipient.call{value: amount}() (#154)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#178-199):
- (success,returndata) = target.call{value: weiValue}(data) (#182)
Low level call in TransferHelper.safeApprove(address,address,uint256) (#273-277):
- (success,data) = token.call(abi.encodeWithSelector(0x095ea7b3,to,value)) (#275)
Low level call in TransferHelper.safeTransfer(address,address,uint256) (#279-283):
- (success,data) = token.call(abi.encodeWithSelector(0xa9059cbb,to,value)) (#281)
Low level call in TransferHelper.safeTransferFrom(address,address,address,uint256) (#285-289):
- (success,data) = token.call(abi.encodeWithSelector(0x23b872dd,from,to,value)) (#287)
Low level call in TransferHelper.safeTransferETH(address,uint256) (#291-294):
- (success) = to.call{value: value}(new bytes(0)) (#292)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable Ownable._owner (#203) is not in mixedCase
Function IUniswapV2Router02.WETH() (#231) is not in mixedCase
Variable HEToken._liquidityFee (#319) is not in mixedCase
Variable HEToken._taxFee (#320) is not in mixedCase
Variable HEToken._marketFee (#321) is not in mixedCase
Variable HEToken._shareFee (#324) is not in mixedCase
Variable HEToken._totalFee (#327) is not in mixedCase
Variable HEToken._transferMarketFee (#329) is not in mixedCase
Variable HEToken._transferLiquidityFee (#330) is not in mixedCase
Variable HEToken._maxTxAmount (#337) is not in mixedCase
Constant HEToken.rootAddress (#345) is not in UPPER_CASE_WITH_UNDERSCORES
Variable HEToken._recommerMapping (#347) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#136)" inContext (#130-139)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router02.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#258) is too similar to IUniswapV2Router02.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#259)
Prevent variables from having similar names.

Additional information: link

HEToken.slitherConstructorVariables() (#297-866) uses literals with too many digits:
- _tTotal = 100000000000 * 10 ** 9 (#312)
HEToken.slitherConstructorConstantVariables() (#297-866) uses literals with too many digits:
- rootAddress = address(0x000000000000000000000000000000000000dEaD) (#345)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

HEToken._decimals (#310) should be constant
HEToken._liquidityFee (#319) should be constant
HEToken._marketFee (#321) should be constant
HEToken._name (#316) should be constant
HEToken._shareFee (#324) should be constant
HEToken._symbol (#317) should be constant
HEToken._tTotal (#312) should be constant
HEToken._taxFee (#320) should be constant
HEToken._totalFee (#327) should be constant
HEToken._transferLiquidityFee (#330) should be constant
HEToken._transferMarketFee (#329) should be constant
HEToken.shareCondition (#353) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

owner() should be declared external:
- Ownable.owner() (#207-209)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#216-219)
name() should be declared external:
- HEToken.name() (#422-424)
symbol() should be declared external:
- HEToken.symbol() (#426-428)
decimals() should be declared external:
- HEToken.decimals() (#430-432)
totalSupply() should be declared external:
- HEToken.totalSupply() (#434-436)
transfer(address,uint256) should be declared external:
- HEToken.transfer(address,uint256) (#443-446)
allowance(address,address) should be declared external:
- HEToken.allowance(address,address) (#448-450)
approve(address,uint256) should be declared external:
- HEToken.approve(address,uint256) (#452-455)
transferFrom(address,address,uint256) should be declared external:
- HEToken.transferFrom(address,address,uint256) (#457-461)
increaseAllowance(address,uint256) should be declared external:
- HEToken.increaseAllowance(address,uint256) (#463-466)
decreaseAllowance(address,uint256) should be declared external:
- HEToken.decreaseAllowance(address,uint256) (#468-471)
isExcludedFromReward(address) should be declared external:
- HEToken.isExcludedFromReward(address) (#473-475)
totalFees() should be declared external:
- HEToken.totalFees() (#477-479)
excludeFromReward(address) should be declared external:
- HEToken.excludeFromReward(address) (#487-494)
excludeFromFee(address) should be declared external:
- HEToken.excludeFromFee(address) (#509-511)
includeInFee(address) should be declared external:
- HEToken.includeInFee(address) (#513-515)
isExcludedFromFee(address) should be declared external:
- HEToken.isExcludedFromFee(address) (#638-640)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract has 12% buy tax and 12% sell tax.
Taxes are high (over 10%) but contract ownership is renounced.

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 number of swaps.

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

Additional information: link

Unable to find token contract audit

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 Twitter 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 scam / price dump / death

Alexa traffic rank is very low

Additional information: link

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 scam / price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinGecko rank