Meta Knight Token Logo

MetaKnight [Meta Knight] Token

About MetaKnight

Listings

Token 7 months
CoinMarketCap 7 months
white paper

MetaKnight is a newly launching token on the BSC. The aim of the token is NFTs, metaverse gameplay and rewards. MetaKnight has a low buy and sell tax of 6% with 3% going to BUSD rewards to holders and 3% going to marketing and development.

All funds raised for marketing will be sent to influencers, call groups and the best investors in the BSC. Development funds will go to further the NFTs and NFT staking card game development. MetaKnight plans to launch a passive income generating card staking game. This will give our early adopters an amazing holding position, creating income simply by purchasing a MetaKnight NFT. The gameplay is coming Q2 of 2022.

Our token went through a presale on pinksale: https://www.pinksale.finance/#/launchpad/0x1EE5dDFC1900D908fBc4d3b41D9e478227F85cA8?chain=BSC

Our liquidity is locked for 7 months: https://www.pinksale.finance/#/pinklock/record/9054?chain=BSC

We have been audited by Techrate at: https://github.com/TechRate/Smart-Contract-Audits/blob/main/December/Meta%20Knight.pdf

Social

Laser Scorebeta Last Audit: 6 January 2022

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


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

MetaKnight.swapBack() (#676-705) sends eth to arbitrary user
Dangerous calls:
- (tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in MetaKnight._transferFrom(address,address,uint256) (#570-623):
External calls:
- swapBack() (#589)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(swapThreshold,0,path,address(this),block.timestamp) (#681-687)
- distributor.deposit{value: amountBNBReflection}() (#698)
- (tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
External calls sending eth:
- swapBack() (#589)
- distributor.deposit{value: amountBNBReflection}() (#698)
- (tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
State variables written after the call(s):
- _basicTransfer(address(this),DEAD,taxBurnAmount) (#593)
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#630-633)
- _balances[recipient] = _balances[recipient].add(amount) (#634)
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#598-601)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#606)
- amountReceived = takeFee(sender,amount,recipient) (#603-605)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#662)
Apply the check-effects-interactions pattern.

Additional information: link

DividendDistributor.distributeDividend(address) (#338-355) ignores return value by REWARDS.transfer(shareholder,amount) (#346)
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.

MetaKnight.swapBack().tmpSuccess (#699) is written in both
(tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
tmpSuccess = false (#704)
Fix or remove the writes.

Additional information: link

Parameter DividendDistributor.setDistributionCriteria(uint256,uint256)._minPeriod (#252) is not in mixedCase
Parameter DividendDistributor.setDistributionCriteria(uint256,uint256)._minDistribution (#253) is not in mixedCase
Variable DividendDistributor._token (#202) is not in mixedCase
Variable DividendDistributor.WBNB (#210) is not in mixedCase
Variable DividendDistributor.REWARDS (#212) is not in mixedCase
Parameter MetaKnight.setFeeReceivers(address)._marketingAmountReceiver (#739) is not in mixedCase
Parameter MetaKnight.setFees(uint256,uint256,uint256)._totalFee (#747) is not in mixedCase
Parameter MetaKnight.setFees(uint256,uint256,uint256)._totalSellFee (#748) is not in mixedCase
Parameter MetaKnight.setFees(uint256,uint256,uint256)._totalTransferFee (#749) is not in mixedCase
Parameter MetaKnight.setDistributionAmounts(uint256,uint256)._reflectionAmount (#760) is not in mixedCase
Parameter MetaKnight.setDistributionAmounts(uint256,uint256)._marketingAmount (#761) is not in mixedCase
Parameter MetaKnight.setSwapBackSettings(bool,uint256,uint256)._enabled (#770) is not in mixedCase
Parameter MetaKnight.setSwapBackSettings(bool,uint256,uint256)._amount (#771) is not in mixedCase
Parameter MetaKnight.setSwapBackSettings(bool,uint256,uint256)._taxBurnAmount (#772) is not in mixedCase
Parameter MetaKnight.setDistributionCriteria(uint256,uint256)._minPeriod (#780) is not in mixedCase
Parameter MetaKnight.setDistributionCriteria(uint256,uint256)._minDistribution (#781) is not in mixedCase
Variable MetaKnight.WBNB (#410) is not in mixedCase
Variable MetaKnight.DEAD (#411) is not in mixedCase
Variable MetaKnight.ZERO (#412) is not in mixedCase
Constant MetaKnight._name (#414) is not in UPPER_CASE_WITH_UNDERSCORES
Constant MetaKnight._symbol (#415) is not in UPPER_CASE_WITH_UNDERSCORES
Constant MetaKnight._decimals (#416) is not in UPPER_CASE_WITH_UNDERSCORES
Variable MetaKnight._totalSupply (#418) is not in mixedCase
Variable MetaKnight._maxWalletToken (#421) is not in mixedCase
Variable MetaKnight._balances (#423) is not in mixedCase
Variable MetaKnight._allowances (#424) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

MetaKnight.slitherConstructorVariables() (#407-801) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#411)
MetaKnight.slitherConstructorVariables() (#407-801) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#412)
MetaKnight.slitherConstructorVariables() (#407-801) uses literals with too many digits:
- distributorGas = 300000 (#451)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

DividendDistributor.WBNB (#210) should be constant
DividendDistributor.dividendsPerShareAccuracyFactor (#225) should be constant
MetaKnight.DEAD (#411) should be constant
MetaKnight.WBNB (#410) should be constant
MetaKnight.ZERO (#412) should be constant
MetaKnight._totalSupply (#418) should be constant
MetaKnight.feeDenominator (#441) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

transferOwnership(address) should be declared external:
- Auth.transferOwnership(address) (#153-156)
getCirculatingSupply() should be declared external:
- MetaKnight.getCirculatingSupply() (#791-793)
Use the external attribute for functions never called from the contract.

Additional information: link

Pragma version^0.8.10 (#30) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.10 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 MetaKnight.swapBack() (#676-705):
- (tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

MetaKnight._maxWalletToken (#421) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 5) / 100
MetaKnight.swapThreshold (#454) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 2) / 1000
MetaKnight.taxBurnAmount (#455) is set pre-construction with a non-constant function or state variable:
- swapThreshold.div(4)
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

Reentrancy in DividendDistributor.distributeDividend(address) (#338-355):
External calls:
- REWARDS.transfer(shareholder,amount) (#346)
State variables written after the call(s):
- shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount) (#348-350)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#351-353)
Reentrancy in DividendDistributor.process(uint256) (#300-326):
External calls:
- distributeDividend(shareholders[currentIndex]) (#318)
- REWARDS.transfer(shareholder,amount) (#346)
State variables written after the call(s):
- currentIndex ++ (#323)
Reentrancy in DividendDistributor.setShare(address,uint256) (#259-279):
External calls:
- distributeDividend(shareholder) (#265)
- REWARDS.transfer(shareholder,amount) (#346)
State variables written after the call(s):
- shares[shareholder].amount = amount (#275)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#276-278)
Apply the check-effects-interactions pattern.

Additional information: link

DividendDistributor.setDistributionCriteria(uint256,uint256) (#251-257) should emit an event for:
- minPeriod = _minPeriod (#255)
- minDistribution = _minDistribution (#256)
MetaKnight.setFees(uint256,uint256,uint256) (#746-757) should emit an event for:
- totalFee = _totalFee (#754)
- totalSellFee = _totalSellFee (#755)
- totalTransferFee = _totalTransferFee (#756)
MetaKnight.setDistributionAmounts(uint256,uint256) (#759-766) should emit an event for:
- totalAmountDivider = _reflectionAmount.add(_marketingAmount) (#763)
- reflectionAmount = _reflectionAmount (#764)
- marketingAmount = _marketingAmount (#765)
MetaKnight.setSwapBackSettings(bool,uint256,uint256) (#769-777) should emit an event for:
- swapThreshold = _amount * 10 ** 9 (#775)
Emit an event for critical parameter changes.

Additional information: link

Auth.transferOwnership(address).adr (#153) lacks a zero-check on :
- owner = adr (#154)
MetaKnight.setFeeReceivers(address)._marketingAmountReceiver (#739) lacks a zero-check on :
- marketingAmountReceiver = _marketingAmountReceiver (#743)
Check that the address is not zero.

Additional information: link

DividendDistributor.distributeDividend(address) (#338-355) has external calls inside a loop: REWARDS.transfer(shareholder,amount) (#346)
Favor pull over push strategy for external calls.

Additional information: link

Reentrancy in MetaKnight.constructor() (#464-498):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#472)
State variables written after the call(s):
- _allowances[address(this)][address(router)] = type()(uint256).max (#473)
- _balances[msg.sender] = _totalSupply (#496)
- distributor = new DividendDistributor(address(router)) (#475)
- isDividendExempt[pair] = true (#489)
- isDividendExempt[address(this)] = true (#490)
- isDividendExempt[DEAD] = true (#491)
- isFeeExempt[msg.sender] = true (#477)
- isFeeExempt[marketingAmountReceiver] = true (#478)
- isFeeExempt[DEAD] = true (#479)
- isFeeExempt[address(this)] = true (#480)
- isMaxWalletExempt[msg.sender] = true (#483)
- isMaxWalletExempt[marketingAmountReceiver] = true (#484)
- isMaxWalletExempt[DEAD] = true (#485)
- isMaxWalletExempt[address(this)] = true (#486)
- isMaxWalletExempt[pair] = true (#487)
- pairs[pair] = true (#494)
Reentrancy in DividendDistributor.deposit() (#281-298):
External calls:
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: msg.value}(0,path,address(this),block.timestamp) (#288-290)
State variables written after the call(s):
- dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares)) (#295-297)
- totalDividends = totalDividends.add(amount) (#294)
Reentrancy in DividendDistributor.distributeDividend(address) (#338-355):
External calls:
- REWARDS.transfer(shareholder,amount) (#346)
State variables written after the call(s):
- shareholderClaims[shareholder] = block.timestamp (#347)
Reentrancy in DividendDistributor.setShare(address,uint256) (#259-279):
External calls:
- distributeDividend(shareholder) (#265)
- REWARDS.transfer(shareholder,amount) (#346)
State variables written after the call(s):
- addShareholder(shareholder) (#269)
- shareholderIndexes[shareholder] = shareholders.length (#392)
- removeShareholder(shareholder) (#271)
- shareholderIndexes[shareholders[shareholders.length - 1]] = shareholderIndexes[shareholder] (#400-402)
- addShareholder(shareholder) (#269)
- shareholders.push(shareholder) (#393)
- removeShareholder(shareholder) (#271)
- shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length - 1] (#397-399)
- shareholders.pop() (#403)
- totalShares = totalShares.sub(shares[shareholder].amount).add(amount) (#274)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in MetaKnight._transferFrom(address,address,uint256) (#570-623):
External calls:
- swapBack() (#589)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(swapThreshold,0,path,address(this),block.timestamp) (#681-687)
- distributor.deposit{value: amountBNBReflection}() (#698)
- (tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
External calls sending eth:
- swapBack() (#589)
- distributor.deposit{value: amountBNBReflection}() (#698)
- (tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#635)
- _basicTransfer(address(this),DEAD,taxBurnAmount) (#593)
- Transfer(sender,address(this),feeAmount) (#663)
- amountReceived = takeFee(sender,amount,recipient) (#603-605)
Reentrancy in MetaKnight._transferFrom(address,address,uint256) (#570-623):
External calls:
- swapBack() (#589)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(swapThreshold,0,path,address(this),block.timestamp) (#681-687)
- distributor.deposit{value: amountBNBReflection}() (#698)
- (tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
- distributor.setShare(sender,_balances[sender]) (#610)
- distributor.setShare(recipient,_balances[recipient]) (#614-616)
- distributor.process(distributorGas) (#619)
External calls sending eth:
- swapBack() (#589)
- distributor.deposit{value: amountBNBReflection}() (#698)
- (tmpSuccess) = address(marketingAmountReceiver).call{value: amountBNBMarketing}() (#699-701)
Event emitted after the call(s):
- Transfer(sender,recipient,amountReceived) (#621)
Reentrancy in MetaKnight.constructor() (#464-498):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#472)
Event emitted after the call(s):
- Transfer(address(0),msg.sender,_totalSupply) (#497)
Apply the check-effects-interactions pattern.

Additional information: link

DividendDistributor.shouldDistribute(address) (#328-336) uses timestamp for comparisons
Dangerous comparisons:
- shareholderClaims[shareholder] + minPeriod < block.timestamp && getUnpaidEarnings(shareholder) > minDistribution (#333-335)
Avoid relying on block.timestamp.

Additional information: link

DividendDistributor.process(uint256) (#300-326) has costly operations inside a loop:
- currentIndex = 0 (#314)
DividendDistributor.distributeDividend(address) (#338-355) has costly operations inside a loop:
- totalDistributed = totalDistributed.add(amount) (#345)
DividendDistributor.process(uint256) (#300-326) has costly operations inside a loop:
- currentIndex ++ (#323)
Use a local variable to hold the loop computation result.

Additional information: link

Holders:


Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.


Number of Binance Smart Chain (BSC) token holders is low.


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 has relatively few followers


Last post in Twitter was more than 30 days ago


Unable to find Blog account (Reddit or Medium)


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 whitepaper link on the website


Unable to find Telegram 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 price dump / death


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


Token has no active CoinMarketCap listing / rank


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death


Token has relatively low CoinGecko rank

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