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PkMon [PolkaMonster] Token

About PkMon

Listings

Token 10 months
CoinMarketCap 10 months
white paper

PolkaMonster is the fighting game on the Binance Smart Chain.

PolkaMonster are sophisticated digital collections created using Blockchain technology.

Social

Laser Scorebeta Last Audit: 30 November 2021

report
Token seems to be (relatively) fine. It still become a scam, but probability is moderate.

Contract locking ether found:
Contract PolkaMonster (contracts/PolkaMonster.sol#8-136) has payable functions:
- PolkaMonster.receive() (contracts/PolkaMonster.sol#119)
But does not have a function to withdraw the ether
Remove the payable attribute or add a withdraw function.

Additional information: link

PolkaMonster.constructor(string,string).symbol (contracts/PolkaMonster.sol#26) shadows:
- ERC20.symbol() (contracts/Common/ERC20.sol#71-73) (function)
- IERC20Metadata.symbol() (contracts/Common/IERC20Metadata.sol#21) (function)
Rename the local variables that shadow another component.

Additional information: link

PolkaMonster.blacklist(uint256) (contracts/PolkaMonster.sol#127-134) should emit an event for:
- blacklistAmount = amount (contracts/PolkaMonster.sol#131)
Emit an event for critical parameter changes.

Additional information: link

Reentrancy in PolkaMonster.constructor(string,string) (contracts/PolkaMonster.sol#26-42):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (contracts/PolkaMonster.sol#37-38)
State variables written after the call(s):
- _approve(address(this),address(uniswapV2Router),~ uint256(0)) (contracts/PolkaMonster.sol#41)
- _allowances[owner][spender] = amount (contracts/Common/ERC20.sol#287)
- uniswapV2Router = _uniswapV2Router (contracts/PolkaMonster.sol#40)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in PolkaMonster.constructor(string,string) (contracts/PolkaMonster.sol#26-42):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (contracts/PolkaMonster.sol#37-38)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/Common/ERC20.sol#288)
- _approve(address(this),address(uniswapV2Router),~ uint256(0)) (contracts/PolkaMonster.sol#41)
Apply the check-effects-interactions pattern.

Additional information: link

PolkaMonster._transfer(address,address,uint256) (contracts/PolkaMonster.sol#65-94) uses timestamp for comparisons
Dangerous comparisons:
- blacklistTime > block.timestamp && amount > blacklistAmount && bots[sender] (contracts/PolkaMonster.sol#71-73)
Avoid relying on block.timestamp.

Additional information: link

Different versions of Solidity is used:
- Version used: ['>=0.6.0<0.8.1', '^0.7.6']
- ^0.7.6 (contracts/Common/Context.sol#3)
- ^0.7.6 (contracts/Common/ERC20.sol#3)
- ^0.7.6 (contracts/Common/IERC20.sol#3)
- ^0.7.6 (contracts/Common/IERC20Metadata.sol#3)
- ^0.7.6 (contracts/Common/Ownable.sol#1)
- ^0.7.6 (contracts/Common/SafeMath.sol#3)
- ^0.7.6 (contracts/Common/Uniswap.sol#2)
- ^0.7.6 (contracts/IManager.sol#3)
- ^0.7.6 (contracts/Monster.sol#2)
- ^0.7.6 (contracts/PolkaMonster.sol#2)
- >=0.6.0<0.8.1 (contracts/ReentrancyGuard.sol#3)
Use one Solidity version.

Additional information: link

SafeMath.mod(uint256,uint256,string) (contracts/Common/SafeMath.sol#142-145) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version>=0.6.0<0.8.1 (contracts/ReentrancyGuard.sol#3) is too complex
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

Parameter PolkaMonster.setAddressForMkt(address)._addressForMkt (contracts/PolkaMonster.sol#121) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (contracts/Common/Context.sol#21)" inContext (contracts/Common/Context.sol#15-24)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (contracts/Common/Uniswap.sol#148) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (contracts/Common/Uniswap.sol#149)
Prevent variables from having similar names.

Additional information: link

PolkaMonster.maxSupply (contracts/PolkaMonster.sol#11) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

swapTokenForMkt() should be declared external:
- PolkaMonster.swapTokenForMkt() (contracts/PolkaMonster.sol#96-101)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


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.


Twitter account link seems to be invalid


Unable to find Youtube account


Unable to find Discord account


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

Additional information: link


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


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


Token has relatively low CoinMarketCap rank

Price for PkMon