BLOCKIFY [Blockify.Games] Token

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

BLOCKIFYcoin.lockToBuyOrSellForTime(uint256,uint256,address) (#667-684) uses a dangerous strict equality:
- lastBuyOrSellTime == 0 (#669)
BLOCKIFYcoin.lockToBuyOrSellForTime(uint256,uint256,address) (#667-684) uses a dangerous strict equality:
- crashTime == fifteenMinutesLock (#673)
BLOCKIFYcoin.lockToBuyOrSellForTime(uint256,uint256,address) (#667-684) uses a dangerous strict equality:
- crashTime == 0 (#675)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

Contract ownership is not renounced (belongs to a wallet)

BLOCKIFYcoin.excludeFromAll(address) (#790-802) ignores return value by tokenHoldersEnumSet.remove(account) (#801)
BLOCKIFYcoin._tokenTransfer(address,address,uint256,bool) (#942-1006) ignores return value by tokenHoldersEnumSet.add(recipient) (#1001)
BLOCKIFYcoin._tokenTransfer(address,address,uint256,bool) (#942-1006) ignores return value by tokenHoldersEnumSet.remove(sender) (#1004)
BLOCKIFYcoin.addLiquidity(uint256,uint256) (#1009-1020) ignores return value by PancakeSwapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1011-1018)
Ensure that all the return values of the function calls are used.

Additional information: link

BLOCKIFYcoin.allowance(address,address).owner (#735) shadows:
- Ownable.owner() (#246-248) (function)
BLOCKIFYcoin._approve(address,address,uint256).owner (#923) shadows:
- Ownable.owner() (#246-248) (function)
Rename the local variables that shadow another component.

Additional information: link

Reentrancy in BLOCKIFYcoin.constructor() (#619-643):
External calls:
- pancakeswapV2Pair = IUniswapV2Factory(_PancakeSwapV2Router.factory()).createPair(address(this),_PancakeSwapV2Router.WETH()) (#623-624)
State variables written after the call(s):
- PancakeSwapV2Router = _PancakeSwapV2Router (#626)
- _excluded.push(address(this)) (#637)
- _excluded.push(pancakeswapV2Pair) (#640)
- _isExcluded[address(this)] = true (#636)
- _isExcluded[pancakeswapV2Pair] = true (#639)
- _isExcludedFromFee[owner()] = true (#628)
- _isExcludedFromFee[address(this)] = true (#629)
- _isExcludedFromFee[address(_PancakeSwapV2RouterUniswap)] = true (#630)
- _isExcludedFromFee[address(0xe853889c8c7a03C1f7935B87355Dc58eCd3d92B0)] = true (#631)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in BLOCKIFYcoin.addLiquidity(uint256,uint256) (#1009-1020):
External calls:
- PancakeSwapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1011-1018)
Event emitted after the call(s):
- LiquidityAdded(tokenAmount,bnbAmount) (#1019)
Reentrancy in BLOCKIFYcoin.constructor() (#619-643):
External calls:
- pancakeswapV2Pair = IUniswapV2Factory(_PancakeSwapV2Router.factory()).createPair(address(this),_PancakeSwapV2Router.WETH()) (#623-624)
Event emitted after the call(s):
- Transfer(address(0),owner(),_tTotal) (#642)
Apply the check-effects-interactions pattern.

Additional information: link

BLOCKIFYcoin.lockToBuyOrSellForTime(uint256,uint256,address) (#667-684) uses timestamp for comparisons
Dangerous comparisons:
- lastBuyOrSellTime == 0 (#669)
- crashTime == fifteenMinutesLock (#673)
- crashTime == 0 (#675)
- crashTime <= lockTime (#680)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#135-141) uses assembly
- INLINE ASM (#137-139)
Address._verifyCallResult(bool,bytes,string) (#213-232) uses assembly
- INLINE ASM (#224-227)
EnumerableSet.values(EnumerableSet.AddressSet) (#499-508) uses assembly
- INLINE ASM (#503-505)
Do not use evm assembly.

Additional information: link

BLOCKIFYcoin.includeInReward(address) (#804-815) has costly operations inside a loop:
- _excluded.pop() (#811)
Use a local variable to hold the loop computation result.

Additional information: link

Address._verifyCallResult(bool,bytes,string) (#213-232) is never used and should be removed
Address.functionCall(address,bytes) (#150-152) is never used and should be removed
Address.functionCall(address,bytes,string) (#154-160) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#162-168) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#170-181) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#198-200) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#202-211) is never used and should be removed
Address.functionStaticCall(address,bytes) (#183-185) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#187-196) is never used and should be removed
Address.isContract(address) (#135-141) is never used and should be removed
Address.sendValue(address,uint256) (#143-148) is never used and should be removed
BLOCKIFYcoin.addLiquidity(uint256,uint256) (#1009-1020) is never used and should be removed
Context._msgData() (#127-130) is never used and should be removed
EnumerableSet._at(EnumerableSet.Set,uint256) (#467-469) is never used and should be removed
EnumerableSet._length(EnumerableSet.Set) (#463-465) is never used and should be removed
EnumerableSet._values(EnumerableSet.Set) (#471-473) is never used and should be removed
EnumerableSet.at(EnumerableSet.AddressSet,uint256) (#495-497) is never used and should be removed
EnumerableSet.contains(EnumerableSet.AddressSet,address) (#487-489) is never used and should be removed
EnumerableSet.length(EnumerableSet.AddressSet) (#491-493) is never used and should be removed
EnumerableSet.values(EnumerableSet.AddressSet) (#499-508) is never used and should be removed
SafeMath.add(uint256,uint256) (#68-70) is never used and should be removed
SafeMath.div(uint256,uint256) (#80-82) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#99-108) is never used and should be removed
SafeMath.mod(uint256,uint256) (#84-86) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#110-119) is never used and should be removed
SafeMath.mul(uint256,uint256) (#76-78) is never used and should be removed
SafeMath.sub(uint256,uint256) (#72-74) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#30-36) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#54-59) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#61-66) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#45-52) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#38-43) is never used and should be removed
Remove unused functions.

Additional information: link

BLOCKIFYcoin._rTotal (#537) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
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^0.8.0 (#3) 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) (#143-148):
- (success) = recipient.call{value: amount}() (#146)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#170-181):
- (success,returndata) = target.call{value: value}(data) (#179)
Low level call in Address.functionStaticCall(address,bytes,string) (#187-196):
- (success,returndata) = target.staticcall(data) (#194)
Low level call in Address.functionDelegateCall(address,bytes,string) (#202-211):
- (success,returndata) = target.delegatecall(data) (#209)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

BLOCKIFYcoin.setSellPerSecond(uint256) (#690-692) should emit an event for:
- sellPerSecond = timeBetweenPurchasesSell (#691)
Emit an event for critical parameter changes.

Additional information: link

Contract name (Blockify.Games) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.

Function IUniswapV2Router01.WETH() (#269) is not in mixedCase
Struct BLOCKIFYcoin.feeRatesStruct (#557-562) is not in CapWords
Struct BLOCKIFYcoin.balances (#564-567) is not in CapWords
Struct BLOCKIFYcoin.valuesFromGetValues (#587-599) is not in CapWords
Function BLOCKIFYcoin.TrandingOn(bool) (#720-722) is not in mixedCase
Parameter BLOCKIFYcoin.TrandingOn(bool)._enable (#720) is not in mixedCase
Parameter BLOCKIFYcoin.settransform(bool)._enable (#731) is not in mixedCase
Parameter BLOCKIFYcoin.setSwapAndLiquifyEnabled(bool)._enabled (#829) is not in mixedCase
Constant BLOCKIFYcoin._decimals (#527) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BLOCKIFYcoin._name (#530) is not in UPPER_CASE_WITH_UNDERSCORES
Constant BLOCKIFYcoin._symbol (#531) is not in UPPER_CASE_WITH_UNDERSCORES
Variable BLOCKIFYcoin._PancakeSwapV1RouterUniswap (#533) is not in mixedCase
Variable BLOCKIFYcoin._PancakeSwapV2RouterUniswap (#534) is not in mixedCase
Variable BLOCKIFYcoin._lastWallet (#541) is not in mixedCase
Variable BLOCKIFYcoin.PancakeSwapV2Router (#601) is not in mixedCase
Variable BLOCKIFYcoin.Trading (#605) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#128)" inContext (#122-131)
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 (#274) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#275)
Variable BLOCKIFYcoin._PancakeSwapV1RouterUniswap (#533) is too similar to BLOCKIFYcoin._PancakeSwapV2RouterUniswap (#534)
Prevent variables from having similar names.

Additional information: link

BLOCKIFYcoin.slitherConstructorVariables() (#511-1028) uses literals with too many digits:
- _tTotal = 1000000000000 * 10 ** _decimals (#536)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

BLOCKIFYcoin._PancakeSwapV1RouterUniswap (#533) should be constant
BLOCKIFYcoin._PancakeSwapV2RouterUniswap (#534) should be constant
BLOCKIFYcoin.fifteenMinutesLock (#539) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#255-258)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#260-264)
getFromLastSell(address) should be declared external:
- BLOCKIFYcoin.getFromLastSell(address) (#649-651)
setBuyRates(uint256,uint256,uint256,uint256) should be declared external:
- BLOCKIFYcoin.setBuyRates(uint256,uint256,uint256,uint256) (#653-658)
setSellRates(uint256,uint256,uint256,uint256) should be declared external:
- BLOCKIFYcoin.setSellRates(uint256,uint256,uint256,uint256) (#660-665)
setSellPerSecond(uint256) should be declared external:
- BLOCKIFYcoin.setSellPerSecond(uint256) (#690-692)
name() should be declared external:
- BLOCKIFYcoin.name() (#694-696)
symbol() should be declared external:
- BLOCKIFYcoin.symbol() (#698-700)
decimals() should be declared external:
- BLOCKIFYcoin.decimals() (#702-704)
totalSupply() should be declared external:
- BLOCKIFYcoin.totalSupply() (#706-708)
transfer(address,uint256) should be declared external:
- BLOCKIFYcoin.transfer(address,uint256) (#715-718)
TrandingOn(bool) should be declared external:
- BLOCKIFYcoin.TrandingOn(bool) (#720-722)
addWhitelist(address[]) should be declared external:
- BLOCKIFYcoin.addWhitelist(address[]) (#725-729)
settransform(bool) should be declared external:
- BLOCKIFYcoin.settransform(bool) (#731-733)
allowance(address,address) should be declared external:
- BLOCKIFYcoin.allowance(address,address) (#735-737)
approve(address,uint256) should be declared external:
- BLOCKIFYcoin.approve(address,uint256) (#739-742)
transferFrom(address,address,uint256) should be declared external:
- BLOCKIFYcoin.transferFrom(address,address,uint256) (#744-748)
increaseAllowance(address,uint256) should be declared external:
- BLOCKIFYcoin.increaseAllowance(address,uint256) (#750-753)
decreaseAllowance(address,uint256) should be declared external:
- BLOCKIFYcoin.decreaseAllowance(address,uint256) (#755-758)
isExcludedFromReward(address) should be declared external:
- BLOCKIFYcoin.isExcludedFromReward(address) (#760-762)
reflectionFromToken(uint256,bool) should be declared external:
- BLOCKIFYcoin.reflectionFromToken(uint256,bool) (#764-773)
excludeFromReward(address) should be declared external:
- BLOCKIFYcoin.excludeFromReward(address) (#781-788)
excludeFromAll(address) should be declared external:
- BLOCKIFYcoin.excludeFromAll(address) (#790-802)
excludeFromFee(address) should be declared external:
- BLOCKIFYcoin.excludeFromFee(address) (#817-819)
includeInFee(address) should be declared external:
- BLOCKIFYcoin.includeInFee(address) (#821-823)
isExcludedFromFee(address) should be declared external:
- BLOCKIFYcoin.isExcludedFromFee(address) (#825-827)
setSwapAndLiquifyEnabled(bool) should be declared external:
- BLOCKIFYcoin.setSwapAndLiquifyEnabled(bool) (#829-832)
withdraw() should be declared external:
- BLOCKIFYcoin.withdraw() (#1022-1025)
Use the external attribute for functions never called from the contract.

Additional information: link

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

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

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

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Unable to find token on CoinGecko

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Unable to find token on CoinMarketCap

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Unable to find token/project description on the website or on BscScan, CoinMarketCap

Unable to find token contract audit

Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)

Unable to find KYC or doxxing proof

Unable to verify token contract address on the website

Unable to find audit link on the website

Token is not listed at Mobula.Finance

Additional information: link

Unable to find token on CoinHunt

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Unable to find code repository for the project

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

Token is marked as scam (rug pull, honeypot, phishing, etc.)

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank

Young tokens have high risks of price dump / death