AZI [AstroZillaInu] Token

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

Foreverx.addLiquidity(uint256,uint256) (#730-743) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in Foreverx._transfer(address,address,uint256) (#642-682):
External calls:
- swapAndLiquify(contractTokenBalance) (#666)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#719-725)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#666)
- recipient.transfer(amount) (#609)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#669)
- _balances[recipient] = _balances[recipient].add(finalAmount) (#677)
- finalAmount = takeFee(sender,recipient,amount) (#671-672)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#750)
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.

Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

Foreverx.swapAndLiquify(uint256) (#691-708) performs a multiplication on the result of a division:
-tokensForLP = tAmount.div(_totalTaxIfBuying).mul(_liquidityFee).div(2) (#693)
Consider ordering multiplication before division.

Additional information: link

Foreverx.addLiquidity(uint256,uint256) (#730-743) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
Ensure that all the return values of the function calls are used.

Additional information: link

Foreverx._approve(address,address,uint256).owner (#541) shadows:
- Ownable.owner() (#166-168) (function)
Rename the local variables that shadow another component.

Additional information: link

Foreverx.setNumTokensBeforeSwap(uint256) (#583-585) should emit an event for:
- minimumTokensBeforeSwap = newLimit (#584)
Emit an event for critical parameter changes.

Additional information: link

Foreverx.setProjectWalletAddress(address).newAddress (#591) lacks a zero-check on :
- ProjectWalletAddress = address(newAddress) (#592)
Check that the address is not zero.

Additional information: link

Reentrancy in Foreverx.transferFrom(address,address,uint256) (#636-640):
External calls:
- _transfer(sender,recipient,amount) (#637)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#719-725)
External calls sending eth:
- _transfer(sender,recipient,amount) (#637)
- recipient.transfer(amount) (#609)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#638)
- _allowances[owner][spender] = amount (#545)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Foreverx.transferFrom(address,address,uint256) (#636-640):
External calls:
- _transfer(sender,recipient,amount) (#637)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#719-725)
External calls sending eth:
- _transfer(sender,recipient,amount) (#637)
- recipient.transfer(amount) (#609)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#546)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#638)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#201-206) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked until 7 days) (#203)
Avoid relying on block.timestamp.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#133-150) uses assembly
- INLINE ASM (#142-145)
Do not use evm assembly.

Additional information: link

SafeMath.mod(uint256,uint256,string) (#89-92) is never used and should be removed
Remove unused functions.

Additional information: link

solc-0.8.4 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) (#133-150):
- (success,returndata) = target.call{value: weiValue}(data) (#136)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable Foreverx._walletMax (#438) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#25)" inContext (#18-28)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in Foreverx.transferFrom(address,address,uint256) (#636-640):
External calls:
- _transfer(sender,recipient,amount) (#637)
- recipient.transfer(amount) (#609)
External calls sending eth:
- _transfer(sender,recipient,amount) (#637)
- recipient.transfer(amount) (#609)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#735-742)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#638)
- _allowances[owner][spender] = amount (#545)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#546)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#638)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#281) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#282)
Prevent variables from having similar names.

Additional information: link

Foreverx.slitherConstructorVariables() (#409-757) uses literals with too many digits:
- _walletMax = 20000000 * 10 ** 9 (#438)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Foreverx.deadAddress (#420) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

transferFrom(address,address,uint256) should be declared external:
- Foreverx.transferFrom(address,address,uint256) (#636-640)
Use the external attribute for functions never called from the contract.

Additional information: link

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

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.

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

Young tokens have high risks of price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank