An autonomous ecosystem where ZOO owners breed, collect and trade exotic hybrid animals via NFTs!
The team consists of experts from across the field including Logan Paul, an NFT and Pokemon obsessive.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
TokenRecover.recoverERC20(address,uint256) (#1128-1130) ignores return value by IERC20(tokenAddress).transfer(owner(),tokenAmount) (#1129)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.
Additional information: link
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.
Variable Ownable._owner (#1067) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
CoinToken.constructor(string,string,uint8,uint256,address,address).feeReceiver_ (#1243) lacks a zero-check on :
- address(feeReceiver_).transfer(msg.value) (#1245)
CoinToken.constructor(string,string,uint8,uint256,address,address).tokenOwner (#1242) lacks a zero-check on :
- _owner = tokenOwner (#1246)
Check that the address is not zero.
Additional information: link
Address.isContract(address) (#510-519) uses assembly
- INLINE ASM (#517)
Address._verifyCallResult(bool,bytes,string) (#655-672) uses assembly
- INLINE ASM (#664-667)
Do not use evm assembly.
Additional information: link
Address._verifyCallResult(bool,bytes,string) (#655-672) is never used and should be removed
Address.functionCall(address,bytes) (#563-565) is never used and should be removed
Address.functionCall(address,bytes,string) (#573-575) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#588-590) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#598-605) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#637-639) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#647-653) is never used and should be removed
Address.functionStaticCall(address,bytes) (#613-615) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#623-629) is never used and should be removed
Address.sendValue(address,uint256) (#537-543) is never used and should be removed
Context._msgData() (#129-132) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version^0.8.0 (#3) allows old versions
Pragma version^0.8.0 (#83) allows old versions
Pragma version^0.8.0 (#112) allows old versions
Pragma version^0.8.0 (#139) allows old versions
Pragma version^0.8.0 (#445) allows old versions
Pragma version^0.8.0 (#487) allows old versions
Pragma version^0.8.0 (#679) allows old versions
Pragma version^0.8.0 (#706) allows old versions
Pragma version^0.8.0 (#736) allows old versions
Pragma version^0.8.0 (#829) allows old versions
Pragma version^0.8.0 (#863) allows old versions
Pragma version^0.8.0 (#895) allows old versions
Pragma version^0.8.0 (#1052) allows old versions
Pragma version^0.8.0 (#1114) allows old versions
Pragma version^0.8.0 (#1137) allows old versions
Pragma version^0.8.0 (#1164) allows old versions
Pragma version^0.8.0 (#1230) allows old versions
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.sendValue(address,uint256) (#537-543):
- (success) = recipient.call{value: amount}() (#541)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#598-605):
- (success,returndata) = target.call{value: value}(data) (#603)
Low level call in Address.functionStaticCall(address,bytes,string) (#623-629):
- (success,returndata) = target.staticcall(data) (#627)
Low level call in Address.functionDelegateCall(address,bytes,string) (#647-653):
- (success,returndata) = target.delegatecall(data) (#651)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Redundant expression "this (#130)" inContext (#124-133)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Reentrancy in CoinToken.constructor(string,string,uint8,uint256,address,address) (#1237-1249):
External calls:
- address(feeReceiver_).transfer(msg.value) (#1245)
State variables written after the call(s):
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1247)
- _balances[account] += amount (#375)
- _owner = tokenOwner (#1246)
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1247)
- _totalSupply += amount (#374)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#376)
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1247)
Apply the check-effects-interactions pattern.
Additional information: link
name() should be declared external:
- ERC20.name() (#195-197)
symbol() should be declared external:
- ERC20.symbol() (#203-205)
totalSupply() should be declared external:
- ERC20.totalSupply() (#227-229)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (#234-236)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#305-308)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#324-330)
burn(uint256) should be declared external:
- ERC20Burnable.burn(uint256) (#460-462)
burnFrom(address,uint256) should be declared external:
- ERC20Burnable.burnFrom(address,uint256) (#475-480)
transferAndCall(address,uint256) should be declared external:
- ERC1363.transferAndCall(address,uint256) (#923-925)
transferFromAndCall(address,address,uint256) should be declared external:
- ERC1363.transferFromAndCall(address,address,uint256) (#951-957)
approveAndCall(address,uint256) should be declared external:
- ERC1363.approveAndCall(address,uint256) (#984-986)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#1094-1097)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#1103-1107)
recoverERC20(address,uint256) should be declared external:
- TokenRecover.recoverERC20(address,uint256) (#1128-1130)
Use the external attribute for functions never called from the contract.
Additional information: link
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token/project description on the website or on BscScan, CoinMarketCap
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 token on CoinHunt
Additional information: link
Unable to find code repository for the project
Token is marked as risky (blacklisted creator, fake name, dead project, etc.)
Additional information: link
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
Last post in Twitter was more than 30 days ago
Unable to find Youtube account