nuBTC [Unvaxxed Sperm] Token

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

Reentrancy in UnvaxxedSpermIsTheNewBitcoin._transfer(address,address,uint256) (#1301-1339):
External calls:
- swapAndLiquify(contractTokenBalance) (#1326)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1408-1415)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1373-1379)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1326)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1408-1415)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1338)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#1262)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1455)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1475)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1133)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1497)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1456)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1477)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1498)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1135)
- _tokenTransfer(from,to,amount,takeFee) (#1338)
- _rTotal = _rTotal.sub(rFee) (#1166)
- _tokenTransfer(from,to,amount,takeFee) (#1338)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#1264)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1132)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1496)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1476)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1134)
Apply the check-effects-interactions pattern.

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UnvaxxedSpermIsTheNewBitcoin.addLiquidity(uint256,uint256) (#1403-1416) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1408-1415)
Ensure that all the return values of the function calls are used.

Additional information: link

UnvaxxedSpermIsTheNewBitcoin._approve(address,address,uint256).owner (#1290) shadows:
- Ownable.owner() (#490-492) (function)
Rename the local variables that shadow another component.

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UnvaxxedSpermIsTheNewBitcoin.setLiquidityFeePercent(uint256) (#1153-1155) should emit an event for:
- _liquidityFee = liquidityFee (#1154)
Emit an event for critical parameter changes.

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Reentrancy in UnvaxxedSpermIsTheNewBitcoin.transferFrom(address,address,uint256) (#1003-1018):
External calls:
- _transfer(sender,recipient,amount) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1408-1415)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1373-1379)
External calls sending eth:
- _transfer(sender,recipient,amount) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1408-1415)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#1009-1016)
- _allowances[owner][spender] = amount (#1297)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in UnvaxxedSpermIsTheNewBitcoin.transferFrom(address,address,uint256) (#1003-1018):
External calls:
- _transfer(sender,recipient,amount) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1408-1415)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1373-1379)
External calls sending eth:
- _transfer(sender,recipient,amount) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1408-1415)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1298)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#1009-1016)
Apply the check-effects-interactions pattern.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#426-454) uses assembly
- INLINE ASM (#446-449)
Do not use evm assembly.

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SafeMath.mod(uint256,uint256,string) (#255-262) is never used and should be removed
Remove unused functions.

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UnvaxxedSpermIsTheNewBitcoin._previousLiquidityFee (#905) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
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-0.8.7 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.

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Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#426-454):
- (success,returndata) = target.call{value: weiValue}(data) (#435-437)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

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Variable UnvaxxedSpermIsTheNewBitcoin._liquidityFee (#904) is not in mixedCase
Follow the Solidity naming convention.

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Redundant expression "this (#271)" inContext (#265-274)
Remove redundant statements if they congest code but offer no value.

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Variable UnvaxxedSpermIsTheNewBitcoin._getValues(uint256).rTransferAmount (#1187) is too similar to UnvaxxedSpermIsTheNewBitcoin._transferBothExcluded(address,address,uint256).tTransferAmount (#1128)
Prevent variables from having similar names.

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UnvaxxedSpermIsTheNewBitcoin.slitherConstructorVariables() (#881-1504) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (#909-910)
Use: Ether suffix, Time suffix, or The scientific notation

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Ownable._previousOwner (#471) is never used in UnvaxxedSpermIsTheNewBitcoin (#881-1504)
Remove unused state variables.

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UnvaxxedSpermIsTheNewBitcoin.numTokensSellToAddToLiquidity (#915) should be constant
Add the constant attributes to state variables that never change.

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swapEthForTokens() should be declared external:
- UnvaxxedSpermIsTheNewBitcoin.swapEthForTokens() (#1382-1401)
Use the external attribute for functions never called from the contract.

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Average 30d PancakeSwap volume is low.

Number of Binance Smart Chain (BSC) token holders is low.

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

Token is deployed only at one blockchain

Unable to find PancakeSwap trading pair to compute liquidity.

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

Unable to crawl data from the website

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

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Unable to find token on CoinGecko

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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 Telegram 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 price dump / death

Token has no active CoinGecko listing / rank

Young tokens have high risks of price dump / death

Token has relatively low CoinMarketCap rank