$CATCHY is a BSC token focused on making crypto tracking simple and accessible. The token has already developed the first multichain telegram wallet tracker. Holders of the token will have access to premium features in all their crypto tracking tools.
The CatchyCoin team has 7 members on board with three developers who maintain and update our product, a marketing expert who knows his way around crypto, two community managers who keep our users informed and gather feedback, and a graphic designer who guides the visual direction of our brand and product. The team's vision extends far beyond what is currently offered. We wish to expand Catchy Wallet Bot's utility to include more appealing visual designs, intuitive analytics, and possibly other chains. With the help of our community, we want to make CatchyCoin a household name in crypto.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Catchy.addLiquidity(uint256,uint256) (Catchy.sol#608-621) sends eth to arbitrary user
Dangerous calls:
- _uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lockedLiquidity(),block.timestamp) (Catchy.sol#613-620)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in Catchy._transfer(address,address,uint256) (Catchy.sol#503-552):
External calls:
- swapAndLiquify(_numTokensSellToAddToLiquidity) (Catchy.sol#542)
- _uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lockedLiquidity(),block.timestamp) (Catchy.sol#613-620)
- _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Catchy.sol#599-605)
External calls sending eth:
- swapAndLiquify(_numTokensSellToAddToLiquidity) (Catchy.sol#542)
- _uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lockedLiquidity(),block.timestamp) (Catchy.sol#613-620)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (Catchy.sol#551)
- _devFee = 0 (Catchy.sol#637)
- _devFee = previousDevFee (Catchy.sol#658)
- _tokenTransfer(from,to,amount,takeFee) (Catchy.sol#551)
- _liquidityFee = 0 (Catchy.sol#636)
- _liquidityFee = previousLiquidityFee (Catchy.sol#657)
- _tokenTransfer(from,to,amount,takeFee) (Catchy.sol#551)
- _rOwned[to] = _rOwned[to].add(rAmount) (Catchy.sol#871)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (Catchy.sol#744)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (Catchy.sol#684)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (Catchy.sol#714)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (Catchy.sol#775)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (Catchy.sol#685)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (Catchy.sol#776)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (Catchy.sol#746)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (Catchy.sol#716)
- _tokenTransfer(from,to,amount,takeFee) (Catchy.sol#551)
- _rTotal = _rTotal.sub(rFee).sub(rBurn) (Catchy.sol#789)
- _tokenTransfer(from,to,amount,takeFee) (Catchy.sol#551)
- _tOwned[to] = _tOwned[to].add(tAmount) (Catchy.sol#873)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (Catchy.sol#713)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (Catchy.sol#774)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (Catchy.sol#745)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (Catchy.sol#715)
- _tokenTransfer(from,to,amount,takeFee) (Catchy.sol#551)
- _tTotal = _tTotal.sub(tBurn) (Catchy.sol#792)
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.
Catchy.swapAndLiquify(uint256) (Catchy.sol#562-591) performs a multiplication on the result of a division:
-devPortion = tokenAmount.mul(devPercentageOfLiquidity()).div(tokensForBnbExchange) (Catchy.sol#572-574)
-balanceToDev = (gainedBnb.mul(devPortion)).div(10000) (Catchy.sol#584)
Consider ordering multiplication before division.
Additional information: link
Catchy.reflectionFromToken(uint256,bool).tBurn_scope_2 (Catchy.sol#312) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.
Additional information: link
Catchy.addLiquidity(uint256,uint256) (Catchy.sol#608-621) ignores return value by _uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lockedLiquidity(),block.timestamp) (Catchy.sol#613-620)
Ensure that all the return values of the function calls are used.
Additional information: link
Catchy._approve(address,address,uint256).owner (Catchy.sol#208) shadows:
- Ownable.owner() (Ownable.sol#59-61) (function)
Rename the local variables that shadow another component.
Additional information: link
Ownable.setDevWalletAddress(address) (Ownable.sol#91-101) should emit an event for:
- _devWallet = devWalletAddress (Ownable.sol#100)
Emit an event for critical parameter changes.
Additional information: link
Catchy.setMinLiquidityPercent(uint256) (Catchy.sol#452-467) should emit an event for:
- _numTokensSellToAddToLiquidity = _tTotal.mul(minLiquidityPercent).div(10000) (Catchy.sol#464-466)
Emit an event for critical parameter changes.
Additional information: link
Catchy.setUniswapPair(address).p (Catchy.sol#498) lacks a zero-check on :
- _uniswapV2Pair = p (Catchy.sol#499)
Check that the address is not zero.
Additional information: link
Variable 'Catchy.reflectionFromToken(uint256,bool).tBurn (Catchy.sol#298)' in Catchy.reflectionFromToken(uint256,bool) (Catchy.sol#290-326) potentially used before declaration: (tFee,tLiquidity,tBurn) = _getTValues(tAmount) (Catchy.sol#312-314)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.
Additional information: link
Reentrancy in Catchy.transferFrom(address,address,uint256) (Catchy.sol#219-234):
External calls:
- _transfer(sender,recipient,amount) (Catchy.sol#224)
- _uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lockedLiquidity(),block.timestamp) (Catchy.sol#613-620)
- _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Catchy.sol#599-605)
External calls sending eth:
- _transfer(sender,recipient,amount) (Catchy.sol#224)
- _uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lockedLiquidity(),block.timestamp) (Catchy.sol#613-620)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (Catchy.sol#225-232)
- _allowances[owner][spender] = amount (Catchy.sol#215)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in Catchy.transferFrom(address,address,uint256) (Catchy.sol#219-234):
External calls:
- _transfer(sender,recipient,amount) (Catchy.sol#224)
- _uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lockedLiquidity(),block.timestamp) (Catchy.sol#613-620)
- _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Catchy.sol#599-605)
External calls sending eth:
- _transfer(sender,recipient,amount) (Catchy.sol#224)
- _uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lockedLiquidity(),block.timestamp) (Catchy.sol#613-620)
Event emitted after the call(s):
- Approval(owner,spender,amount) (Catchy.sol#216)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (Catchy.sol#225-232)
Apply the check-effects-interactions pattern.
Additional information: link
Address._functionCallWithValue(address,bytes,uint256,string) (Address.sol#152-179) uses assembly
- INLINE ASM (Address.sol#171-174)
Do not use evm assembly.
Additional information: link
SafeMath.mod(uint256,uint256,string) (SafeMath.sol#58-65) is never used and should be removed
Remove unused functions.
Additional information: link
Catchy._rTotal (Catchy.sol#77) 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
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.
Additional information: link
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (Address.sol#152-179):
- (success,returndata) = target.call{value: weiValue}(data) (Address.sol#161-162)
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() (Routers.sol#147) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (Ownable.sol#21)" inContext (Ownable.sol#15-24)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Reentrancy in Catchy.collectDevFees() (Catchy.sol#554-560):
External calls:
- devWallet().transfer(address(this).balance) (Catchy.sol#558)
Event emitted after the call(s):
- DevFeesCollected(address(this).balance) (Catchy.sol#559)
Apply the check-effects-interactions pattern.
Additional information: link
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (Routers.sol#152) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (Routers.sol#153)
Prevent variables from having similar names.
Additional information: link
Catchy.slitherConstructorVariables() (Catchy.sol#59-876) uses literals with too many digits:
- _maxTxAmount = 105000000 * 10 ** 9 (Catchy.sol#109)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (Ownable.sol#127-134)
Use the external attribute for functions never called from the contract.
Additional information: link
Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.
Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.
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.
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 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 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
Twitter account link seems to be invalid
Unable to find Blog account (Reddit or Medium)
Unable to find Youtube account
Unable to find Discord account