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MPOOL [Metapool] Token

About MPOOL

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Token 2 years

Metapool it is a deflationary token that provides holders massive profits by instant staking through reflections . Everyday every holder of metapool will be able to claim 10% of the accumulated pot. Everyday the time for claim will be different as the previous one.

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Laser Scorebeta Last Audit: 30 November 2021

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Token has too many issues. Scam probability is high.

Anti-Scam

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Metapool.addLiquidity(uint256,uint256) (#674-680) sends eth to arbitrary user
Dangerous calls:
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#679)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in Metapool._transfer(address,address,uint256) (#531-600):
External calls:
- handle_fees(feeswap,currentTaxes) (#585)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#679)
- (success) = recipient.call{value: amount}() (#362)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#670)
- address(marketingWallet).sendValue(marketingAmt) (#645)
- address(devWallet).sendValue(devAmt) (#650)
- address(metapoolWallet).sendValue(poolAmt) (#655)
External calls sending eth:
- handle_fees(feeswap,currentTaxes) (#585)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#679)
- (success) = recipient.call{value: amount}() (#362)
State variables written after the call(s):
- super._transfer(sender,recipient,amount - fee) (#589)
- _balances[sender] = senderBalance - amount (#271)
- _balances[recipient] += amount (#272)
- super._transfer(sender,address(this),feeAmount) (#595)
- _balances[sender] = senderBalance - amount (#271)
- _balances[recipient] += amount (#272)
Apply the check-effects-interactions pattern.

Additional information: link

Metapool.rescueBEP20(address,uint256) (#757-759) ignores return value by IERC20(tokenAdd).transfer(devWallet,amount) (#758)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link


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


Too many vulnerabilities (Unchecked transfer, Reentrancy vulnerability, etc.). High risk of a scam. DYOR & manual audit are advised.

Metapool._transfer(address,address,uint256) (#531-600) uses a dangerous strict equality:
- recipient == pair && genesis_block == 0 (#535)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

Metapool._transfer(address,address,uint256).fee (#561) is written in both
fee = 0 (#571)
fee = amount * feeswap / 100 (#581)
Fix or remove the writes.

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.


Combination 2: Unchecked transfer + 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.


Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Variable Metapool.genesis_block (#427) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#41)" inContext (#35-44)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Metapool.marketingWallet (#429) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

getPair() should be declared external:
- Metapool.getPair() (#761-763)
Use the external attribute for functions never called from the contract.

Additional information: link

Metapool.handle_fees(uint256,Metapool.Taxes) (#602-659) performs a multiplication on the result of a division:
-devTokens = swapTaxes.dev * tokenBalance / feeswap (#616)
-devAmt = devTokens * afterBalance / toSwap (#648)
Consider ordering multiplication before division.

Additional information: link

Metapool._transfer(address,address,uint256).currentTaxes (#563) 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

Metapool.addLiquidity(uint256,uint256) (#674-680) ignores return value by router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#679)
Ensure that all the return values of the function calls are used.

Additional information: link

Metapool.updateMaxWalletlimit(uint256) (#749-751) should emit an event for:
- maxWalletLimit = amount * 10 ** decimals() (#750)
Emit an event for critical parameter changes.

Additional information: link

Metapool.updateMetapoolWallet(address).newWallet (#710) lacks a zero-check on :
- metapoolWallet = newWallet (#711)
Check that the address is not zero.

Additional information: link

Modifier Metapool.mutexLock() (#459-465) does not always execute _; or revert
All the paths in a modifier must execute _ or revert.

Additional information: link

Reentrancy in Metapool.transferFrom(address,address,uint256) (#503-511):
External calls:
- _transfer(sender,recipient,amount) (#504)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#679)
- (success) = recipient.call{value: amount}() (#362)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#670)
- address(marketingWallet).sendValue(marketingAmt) (#645)
- address(devWallet).sendValue(devAmt) (#650)
- address(metapoolWallet).sendValue(poolAmt) (#655)
External calls sending eth:
- _transfer(sender,recipient,amount) (#504)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#679)
- (success) = recipient.call{value: amount}() (#362)
State variables written after the call(s):
- _approve(sender,_msgSender(),currentAllowance - amount) (#508)
- _allowances[owner][spender] = amount (#337)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Metapool.transferFrom(address,address,uint256) (#503-511):
External calls:
- _transfer(sender,recipient,amount) (#504)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#679)
- (success) = recipient.call{value: amount}() (#362)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#670)
- address(marketingWallet).sendValue(marketingAmt) (#645)
- address(devWallet).sendValue(devAmt) (#650)
- address(metapoolWallet).sendValue(poolAmt) (#655)
External calls sending eth:
- _transfer(sender,recipient,amount) (#504)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#679)
- (success) = recipient.call{value: amount}() (#362)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#338)
- _approve(sender,_msgSender(),currentAllowance - amount) (#508)
Apply the check-effects-interactions pattern.

Additional information: link

Metapool._transfer(address,address,uint256) (#531-600) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(timePassed >= coolDownTime,Cooldown enabled.) (#555)
Avoid relying on block.timestamp.

Additional information: link

ERC20._burn(address,uint256) (#307-318) is never used and should be removed
Remove unused functions.

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.sendValue(address,uint256) (#359-364):
- (success) = recipient.call{value: amount}() (#362)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Holders:


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.


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


Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap

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 Telegram link on the website


Unable to find Twitter link on the website


Unable to find token on CoinHunt

Additional information: link


Young tokens have high risks of price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Token has no active CoinMarketCap listing / rank


Token has relatively low CoinGecko rank

Price for MPOOL