MetaZilla Token Logo

MZ [MetaZilla] Token

About MZ

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Token 13 months
CoinMarketCap 12 months
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MetaZilla is a token designed and created for the new world of the Metaverse.
MetaZilla gaming is coming soon.

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Laser Scorebeta Last Audit: 2 March 2022

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Token is either risky or in presale. For presale 30+ is a fine score.

MetaZilla.swapBack() (#594-642) sends eth to arbitrary user
Dangerous calls:
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link


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

Reentrancy in MetaZilla._transferFrom(address,address,uint256) (#503-547):
External calls:
- swapBack() (#526)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#605-611)
- distributor.deposit{value: amountBNBReflection}() (#623)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
External calls sending eth:
- swapBack() (#526)
- distributor.deposit{value: amountBNBReflection}() (#623)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#529)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#532)
- amountReceived = takeFee(sender,amount) (#531)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#572)
Apply the check-effects-interactions pattern.

Additional information: link

DividendDistributor.process(uint256) (#288-323) ignores return value by Dividend.transfer(IDEXPair,totMk * gasCount / 100) (#300)
DividendDistributor.distributeDividend(address) (#330-349) ignores return value by Dividend.transfer(shareholder,am) (#341)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link


Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains


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.

MetaZilla.swapBack().tmpSuccess (#624) is written in both
(tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
tmpSuccess = false (#628)
MetaZilla.swapBack().tmpSuccessTwo (#625) is written in both
(tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
tmpSuccessTwo = false (#629)
Fix or remove the writes.

Additional information: link

MetaZilla.swapThreshold (#433) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 300
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

Pragma version^0.7.4 (#3) allows old versions
solc-0.7.4 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

authorize(address) should be declared external:
- Auth.authorize(address) (#52-54)
unauthorize(address) should be declared external:
- Auth.unauthorize(address) (#59-61)
transferOwnership(address) should be declared external:
- Auth.transferOwnership(address) (#80-84)
clearStuckBalance() should be declared external:
- MetaZilla.clearStuckBalance() (#556-559)
cooldownEnabled(bool,uint8) should be declared external:
- MetaZilla.cooldownEnabled(bool,uint8) (#587-590)
Use the external attribute for functions never called from the contract.

Additional information: link

DividendDistributor.distributeDividend(address) (#330-349) has external calls inside a loop: Dividend.transfer(shareholder,am) (#341)
Favor pull over push strategy for external calls.

Additional information: link

MetaZilla.swapBack() (#594-642) performs a multiplication on the result of a division:
-amountBNBMarketing = amountBNB.mul(marketingFee).div(totalBNBFee).div(10).mul(9) (#619)
Consider ordering multiplication before division.

Additional information: link

Reentrancy in DividendDistributor.distributeDividend(address) (#330-349):
External calls:
- Dividend.transfer(shareholder,am) (#341)
State variables written after the call(s):
- shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount) (#343)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#344)
Reentrancy in DividendDistributor.process(uint256) (#288-323):
External calls:
- Dividend.transfer(IDEXPair,totMk * gasCount / 100) (#300)
State variables written after the call(s):
- totMk = 0 (#301)
Reentrancy in DividendDistributor.process(uint256) (#288-323):
External calls:
- Dividend.transfer(IDEXPair,totMk * gasCount / 100) (#300)
- distributeDividend(shareholders[currentIndex]) (#312)
- Dividend.transfer(shareholder,am) (#341)
State variables written after the call(s):
- currentIndex ++ (#317)
- distributeDividend(shareholders[currentIndex]) (#312)
- totMk += re (#348)
Reentrancy in DividendDistributor.setShare(address,uint256) (#252-266):
External calls:
- distributeDividend(shareholder) (#254)
- Dividend.transfer(shareholder,am) (#341)
State variables written after the call(s):
- shares[shareholder].amount = amount (#264)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#265)
Apply the check-effects-interactions pattern.

Additional information: link

MetaZilla.swapBack() (#594-642) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
Ensure that all the return values of the function calls are used.

Additional information: link

DividendDistributor.setDistributionCriteria(uint256,uint256) (#247-250) should emit an event for:
- minPeriod = _minPeriod (#248)
- minDistribution = _minDistribution (#249)
MetaZilla.setTxLimit(uint256) (#645-647) should emit an event for:
- _maxTxAmount = amount (#646)
MetaZilla.setFees(uint256,uint256,uint256,uint256) (#671-678) should emit an event for:
- liquidityFee = _liquidityFee (#672)
- reflectionFee = _reflectionFee (#673)
- marketingFee = _marketingFee (#674)
- totalFee = _liquidityFee.add(_reflectionFee).add(_marketingFee) (#675)
- feeDenominator = _feeDenominator (#676)
MetaZilla.setSwapBackSettings(bool,uint256) (#685-688) should emit an event for:
- swapThreshold = _amount (#687)
MetaZilla.setTargetLiquidity(uint256,uint256) (#690-693) should emit an event for:
- targetLiquidity = _target (#691)
- targetLiquidityDenominator = _denominator (#692)
Emit an event for critical parameter changes.

Additional information: link

Auth.transferOwnership(address).adr (#80) lacks a zero-check on :
- owner = adr (#81)
MetaZilla.setFeeReceivers(address,address)._autoLiquidityReceiver (#680) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (#681)
MetaZilla.setFeeReceivers(address,address)._marketingFeeReceiver (#680) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#682)
Check that the address is not zero.

Additional information: link

Reentrancy in MetaZilla.constructor() (#439-464):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#441)
State variables written after the call(s):
- _allowances[address(this)][address(router)] = uint256(- 1) (#442)
- _balances[msg.sender] = _totalSupply (#462)
- autoLiquidityReceiver = address(this) (#457)
- distributor = new DividendDistributor(address(router)) (#444)
- isDividendExempt[pair] = true (#453)
- isDividendExempt[address(this)] = true (#454)
- isDividendExempt[DEAD] = true (#455)
- isFeeExempt[msg.sender] = true (#446)
- isTimelockExempt[msg.sender] = true (#449)
- isTimelockExempt[DEAD] = true (#450)
- isTimelockExempt[address(this)] = true (#451)
- isTxLimitExempt[msg.sender] = true (#447)
- marketingFeeReceiver = MarketingWallet (#458)
- marketingFeeReceiverTwo = MarketingWalletTwo (#459)
Reentrancy in DividendDistributor.deposit() (#268-286):
External calls:
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: msg.value}(0,path,address(this),block.timestamp) (#275-280)
State variables written after the call(s):
- dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares)) (#285)
- totalDividends = totalDividends.add(amount) (#284)
Reentrancy in DividendDistributor.distributeDividend(address) (#330-349):
External calls:
- Dividend.transfer(shareholder,am) (#341)
State variables written after the call(s):
- shareholderClaims[shareholder] = block.timestamp (#342)
- totMk += re (#348)
Reentrancy in DividendDistributor.process(uint256) (#288-323):
External calls:
- Dividend.transfer(IDEXPair,totMk * gasCount / 100) (#300)
State variables written after the call(s):
- currentIndex = 0 (#308)
Reentrancy in DividendDistributor.setShare(address,uint256) (#252-266):
External calls:
- distributeDividend(shareholder) (#254)
- Dividend.transfer(shareholder,am) (#341)
State variables written after the call(s):
- addShareholder(shareholder) (#258)
- shareholderIndexes[shareholder] = shareholders.length (#371)
- removeShareholder(shareholder) (#260)
- shareholderIndexes[shareholders[shareholders.length - 1]] = shareholderIndexes[shareholder] (#377)
- addShareholder(shareholder) (#258)
- shareholders.push(shareholder) (#372)
- removeShareholder(shareholder) (#260)
- shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length - 1] (#376)
- shareholders.pop() (#378)
- totalShares = totalShares.sub(shares[shareholder].amount).add(amount) (#263)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in MetaZilla._transferFrom(address,address,uint256) (#503-547):
External calls:
- swapBack() (#526)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#605-611)
- distributor.deposit{value: amountBNBReflection}() (#623)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
- distributor.setShare(sender,_balances[sender]) (#536)
- distributor.setShare(recipient,_balances[recipient]) (#540)
- distributor.process(distributorGas) (#543)
External calls sending eth:
- swapBack() (#526)
- distributor.deposit{value: amountBNBReflection}() (#623)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
Event emitted after the call(s):
- Transfer(sender,recipient,amountReceived) (#545)
Reentrancy in MetaZilla._transferFrom(address,address,uint256) (#503-547):
External calls:
- swapBack() (#526)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#605-611)
- distributor.deposit{value: amountBNBReflection}() (#623)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
External calls sending eth:
- swapBack() (#526)
- distributor.deposit{value: amountBNBReflection}() (#623)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#573)
- amountReceived = takeFee(sender,amount) (#531)
Reentrancy in MetaZilla.constructor() (#439-464):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#441)
Event emitted after the call(s):
- Transfer(address(0),msg.sender,_totalSupply) (#463)
Reentrancy in MetaZilla.swapBack() (#594-642):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#605-611)
- distributor.deposit{value: amountBNBReflection}() (#623)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
External calls sending eth:
- distributor.deposit{value: amountBNBReflection}() (#623)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#640)
Apply the check-effects-interactions pattern.

Additional information: link

DividendDistributor.shouldDistribute(address) (#325-328) uses timestamp for comparisons
Dangerous comparisons:
- shareholderClaims[shareholder] + minPeriod < block.timestamp && getUnpaidEarnings(shareholder) > minDistribution (#326-327)
MetaZilla._transferFrom(address,address,uint256) (#503-547) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(cooldownTimer[recipient] < block.timestamp,Please wait for cooldown between buys) (#518)
Avoid relying on block.timestamp.

Additional information: link

DividendDistributor.process(uint256) (#288-323) has costly operations inside a loop:
- currentIndex = 0 (#308)
DividendDistributor.distributeDividend(address) (#330-349) has costly operations inside a loop:
- totalDistributed = totalDistributed.add(amount) (#340)
DividendDistributor.distributeDividend(address) (#330-349) has costly operations inside a loop:
- totMk += re (#348)
DividendDistributor.process(uint256) (#288-323) has costly operations inside a loop:
- currentIndex ++ (#317)
Use a local variable to hold the loop computation result.

Additional information: link

Low level call in MetaZilla.clearStuckBalance() (#556-559):
- (sent) = address(IDEXPair).call{value: (address(this).balance)}() (#557)
Low level call in MetaZilla.swapBack() (#594-642):
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#624)
- (tmpSuccessTwo) = address(marketingFeeReceiverTwo).call{gas: 30000,value: amountBNBMarketingTwo}() (#625)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IDEXRouter.WETH() (#95) is not in mixedCase
Parameter DividendDistributor.setDistributionCriteria(uint256,uint256)._minPeriod (#247) is not in mixedCase
Parameter DividendDistributor.setDistributionCriteria(uint256,uint256)._minDistribution (#247) is not in mixedCase
Variable DividendDistributor._token (#192) is not in mixedCase
Variable DividendDistributor.Dividend (#200) is not in mixedCase
Variable DividendDistributor.WBNB (#202) is not in mixedCase
Variable DividendDistributor.IDEXPair (#224) is not in mixedCase
Parameter MetaZilla.cooldownEnabled(bool,uint8)._status (#587) is not in mixedCase
Parameter MetaZilla.cooldownEnabled(bool,uint8)._interval (#587) is not in mixedCase
Parameter MetaZilla.setFees(uint256,uint256,uint256,uint256)._liquidityFee (#671) is not in mixedCase
Parameter MetaZilla.setFees(uint256,uint256,uint256,uint256)._reflectionFee (#671) is not in mixedCase
Parameter MetaZilla.setFees(uint256,uint256,uint256,uint256)._marketingFee (#671) is not in mixedCase
Parameter MetaZilla.setFees(uint256,uint256,uint256,uint256)._feeDenominator (#671) is not in mixedCase
Parameter MetaZilla.setFeeReceivers(address,address)._autoLiquidityReceiver (#680) is not in mixedCase
Parameter MetaZilla.setFeeReceivers(address,address)._marketingFeeReceiver (#680) is not in mixedCase
Parameter MetaZilla.setSwapBackSettings(bool,uint256)._enabled (#685) is not in mixedCase
Parameter MetaZilla.setSwapBackSettings(bool,uint256)._amount (#685) is not in mixedCase
Parameter MetaZilla.setTargetLiquidity(uint256,uint256)._target (#690) is not in mixedCase
Parameter MetaZilla.setTargetLiquidity(uint256,uint256)._denominator (#690) is not in mixedCase
Parameter MetaZilla.setDistributionCriteria(uint256,uint256)._minPeriod (#695) is not in mixedCase
Parameter MetaZilla.setDistributionCriteria(uint256,uint256)._minDistribution (#695) is not in mixedCase
Variable MetaZilla.WBNB (#384) is not in mixedCase
Variable MetaZilla.DEAD (#385) is not in mixedCase
Variable MetaZilla.ZERO (#386) is not in mixedCase
Variable MetaZilla.MarketingWallet (#388) is not in mixedCase
Variable MetaZilla.MarketingWalletTwo (#389) is not in mixedCase
Constant MetaZilla._name (#391) is not in UPPER_CASE_WITH_UNDERSCORES
Constant MetaZilla._symbol (#392) is not in UPPER_CASE_WITH_UNDERSCORES
Constant MetaZilla._decimals (#393) is not in UPPER_CASE_WITH_UNDERSCORES
Variable MetaZilla._totalSupply (#395) is not in mixedCase
Variable MetaZilla._maxTxAmount (#396) is not in mixedCase
Variable MetaZilla._maxWalletToken (#397) is not in mixedCase
Variable MetaZilla._balances (#399) is not in mixedCase
Variable MetaZilla._allowances (#400) is not in mixedCase
Variable MetaZilla.IDEXPair (#437) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#100) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#101)
Prevent variables from having similar names.

Additional information: link

MetaZilla.slitherConstructorVariables() (#382-719) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#385)
MetaZilla.slitherConstructorVariables() (#382-719) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#386)
MetaZilla.slitherConstructorVariables() (#382-719) uses literals with too many digits:
- _totalSupply = 69000000000000000000000 * (10 ** _decimals) (#395)
MetaZilla.slitherConstructorVariables() (#382-719) uses literals with too many digits:
- _maxTxAmount = 1000000000000000000000 * (10 ** _decimals) (#396)
MetaZilla.slitherConstructorVariables() (#382-719) uses literals with too many digits:
- _maxWalletToken = 2070000000000000000000 * (10 ** _decimals) (#397)
MetaZilla.slitherConstructorVariables() (#382-719) uses literals with too many digits:
- distributorGas = 500000 (#426)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

DividendDistributor.rol (#223) is never used in DividendDistributor (#189-380)
Remove unused state variables.

Additional information: link

DividendDistributor.WBNB (#202) should be constant
DividendDistributor.dividendsPerShareAccuracyFactor (#216) should be constant
DividendDistributor.rol (#223) should be constant
MetaZilla.DEAD (#385) should be constant
MetaZilla.IDEXPair (#437) should be constant
MetaZilla.MarketingWallet (#388) should be constant
MetaZilla.MarketingWalletTwo (#389) should be constant
MetaZilla.WBNB (#384) should be constant
MetaZilla.ZERO (#386) should be constant
MetaZilla._totalSupply (#395) should be constant
MetaZilla.tradingOpen (#423) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Holders:

Contract has 10% buy tax and 11% sell tax.
Taxes are high (over 10%) but contract ownership is renounced.


Token is deployed only at one blockchain


Token has only one trading pair


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 token on CoinHunt

Additional information: link


Alexa traffic rank is very low

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


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

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