SHIBLON Token

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

Shiblon.addLiquidity(uint256,uint256) (#767-778) sends eth to arbitrary user
Dangerous calls:
- V2router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#770-777)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Shiblon._transfer(address,address,uint256) (#680-715) uses a dangerous strict equality:
- cooldown[to] == 0 (#691)
Shiblon._transfer(address,address,uint256) (#680-715) uses a dangerous strict equality:
- (block.number.sub(cooldown[from]) < 2) || (block.number.sub(cooldown[from]) == 100) (#698)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

Shiblon.addLiquidity(uint256,uint256) (#767-778) ignores return value by V2router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#770-777)
Ensure that all the return values of the function calls are used.

Additional information: link

Shiblon.allowance(address,address).owner (#532) shadows:
- Ownable.owner() (#167-169) (function)
Shiblon._approve(address,address,uint256).owner (#559) shadows:
- Ownable.owner() (#167-169) (function)
Rename the local variables that shadow another component.

Additional information: link

Shiblon.setBuyTaxes(uint256,uint256,uint256) (#579-585) should emit an event for:
- _buyLiquidityFee = newLiquidityTax (#580)
- _buyMarketingFee = newMarketingTax (#581)
- _buyBurnedFee = newBurnedTax (#582)
- _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(_buyBurnedFee) (#584)
Shiblon.setSellTaxes(uint256,uint256,uint256) (#587-593) should emit an event for:
- _sellLiquidityFee = newLiquidityTax (#588)
- _sellMarketingFee = newMarketingTax (#589)
- _sellBurnedFee = newBurnedTax (#590)
- _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(_sellBurnedFee) (#592)
Shiblon.setDistributionSettings(uint256,uint256,uint256) (#595-601) should emit an event for:
- _liquidityShare = newLiquidityShare (#596)
- _BurnedShare = newBurnedShare (#598)
- _totalDistributionShares = _liquidityShare.add(_marketingShare).add(_BurnedShare) (#600)
Shiblon.setNumTokensBeforeSwap(uint256) (#619-621) should emit an event for:
- minimumTokensBeforeSwap = newLimit (#620)
Emit an event for critical parameter changes.

Additional information: link

Shiblon.setMarketingWalletAddress(address).newAddress (#623) lacks a zero-check on :
- marketingWalletAddress = address(newAddress) (#624)
Shiblon.setBurnedWalletAddress(address).newAddress (#627) lacks a zero-check on :
- BurnedWalletAddress = address(newAddress) (#628)
Check that the address is not zero.

Additional information: link

Reentrancy in Shiblon.changeRouterVersion(address) (#648-665):
External calls:
- newPairAddress = IUniswapV2Factory(_V2router.factory()).createPair(address(this),_V2router.WETH()) (#656-657)
State variables written after the call(s):
- V2router = _V2router (#661)
- isMarketPair[address(uniswapPair)] = true (#664)
- isWalletLimitExempt[address(uniswapPair)] = true (#663)
- uniswapPair = newPairAddress (#660)
Reentrancy in Shiblon.constructor() (#483-510):
External calls:
- uniswapPair = IUniswapV2Factory(_V2router.factory()).createPair(address(this),_V2router.WETH()) (#486-487)
State variables written after the call(s):
- V2router = _V2router (#489)
- _allowances[address(this)][address(V2router)] = _totalSupply (#490)
- _balances[_msgSender()] = _totalSupply (#508)
- _totalDistributionShares = _liquidityShare.add(_marketingShare).add(_BurnedShare) (#497)
- _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(_buyBurnedFee) (#495)
- _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(_sellBurnedFee) (#496)
- isExcludedFromFee[owner()] = true (#492)
- isExcludedFromFee[address(this)] = true (#493)
- isMarketPair[address(uniswapPair)] = true (#506)
- isTxLimitExempt[owner()] = true (#503)
- isTxLimitExempt[address(this)] = true (#504)
- isWalletLimitExempt[owner()] = true (#499)
- isWalletLimitExempt[address(uniswapPair)] = true (#500)
- isWalletLimitExempt[address(this)] = true (#501)
Reentrancy in Shiblon.swapAndLiquify(uint256) (#724-746):
External calls:
- swapTokensForEth(tokensForSwap) (#729)
- V2router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#756-762)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
- V2router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#770-777)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#739)
- recipient.transfer(amount) (#645)
- transferToAddressETH(BurnedWalletAddress,amountBNBBurned) (#742)
- recipient.transfer(amount) (#645)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
- V2router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#770-777)
State variables written after the call(s):
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
- _allowances[owner][spender] = amount (#563)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Shiblon.constructor() (#483-510):
External calls:
- uniswapPair = IUniswapV2Factory(_V2router.factory()).createPair(address(this),_V2router.WETH()) (#486-487)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_totalSupply) (#509)
Reentrancy in Shiblon.swapAndLiquify(uint256) (#724-746):
External calls:
- swapTokensForEth(tokensForSwap) (#729)
- V2router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#756-762)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
- V2router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#770-777)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#739)
- recipient.transfer(amount) (#645)
- transferToAddressETH(BurnedWalletAddress,amountBNBBurned) (#742)
- recipient.transfer(amount) (#645)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
- V2router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#770-777)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#564)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
Reentrancy in Shiblon.swapTokensForEth(uint256) (#748-765):
External calls:
- V2router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#756-762)
Event emitted after the call(s):
- SwapTokensForETH(tokenAmount,path) (#764)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#202-207) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked until 7 days) (#204)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#102-108) uses assembly
- INLINE ASM (#106)
Address._functionCallWithValue(address,bytes,uint256,string) (#134-151) uses assembly
- INLINE ASM (#143-146)
Do not use evm assembly.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#134-151) is never used and should be removed
Address.functionCall(address,bytes) (#117-119) is never used and should be removed
Address.functionCall(address,bytes,string) (#121-123) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#125-127) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#129-132) is never used and should be removed
Address.isContract(address) (#102-108) is never used and should be removed
Address.sendValue(address,uint256) (#110-115) is never used and should be removed
Context._msgData() (#29-32) is never used and should be removed
SafeMath.mod(uint256,uint256) (#90-92) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#94-97) is never used and should be removed
Shiblon.addLiquidity(uint256,uint256) (#767-778) is never used and should be removed
Shiblon.swapAndLiquify(uint256) (#724-746) is never used and should be removed
Shiblon.swapTokensForEth(uint256) (#748-765) is never used and should be removed
Shiblon.takeFee(address,address,uint256) (#780-797) is never used and should be removed
Shiblon.transferToAddressETH(address,uint256) (#644-646) is never used and should be removed
Remove unused functions.

Additional information: link

Shiblon._liquidityShare (#437) is set pre-construction with a non-constant function or state variable:
- _buyLiquidityFee.add(_sellLiquidityFee)
Shiblon._marketingShare (#438) is set pre-construction with a non-constant function or state variable:
- _buyMarketingFee.add(_sellMarketingFee)
Shiblon._BurnedShare (#439) is set pre-construction with a non-constant function or state variable:
- _buyBurnedFee.add(_sellBurnedFee)
Shiblon._totalSupply (#445) is set pre-construction with a non-constant function or state variable:
- 1000000000 * 10 ** _decimals
Shiblon._maxTxAmount (#446) is set pre-construction with a non-constant function or state variable:
- _totalSupply.div(1)
Shiblon._walletMax (#447) is set pre-construction with a non-constant function or state variable:
- _totalSupply.div(1)
Shiblon.minimumTokensBeforeSwap (#448) is set pre-construction with a non-constant function or state variable:
- 100 * 10 ** 2 * 10 ** _decimals
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 version0.8.2 (#21) allows old versions
solc-0.8.2 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) (#110-115):
- (success) = recipient.call{value: amount}() (#113)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#134-151):
- (success,returndata) = target.call{value: weiValue}(data) (#137)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#241) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#242) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#258) is not in mixedCase
Function IUniswapV2Router01.WETH() (#277) is not in mixedCase
Parameter Shiblon.setSwapAndLiquifyEnabled(bool)._enabled (#631) is not in mixedCase
Variable Shiblon.BurnedWalletAddress (#419) is not in mixedCase
Variable Shiblon._balances (#422) is not in mixedCase
Variable Shiblon._buyLiquidityFee (#430) is not in mixedCase
Variable Shiblon._buyMarketingFee (#431) is not in mixedCase
Variable Shiblon._buyBurnedFee (#432) is not in mixedCase
Variable Shiblon._sellLiquidityFee (#433) is not in mixedCase
Variable Shiblon._sellMarketingFee (#434) is not in mixedCase
Variable Shiblon._sellBurnedFee (#435) is not in mixedCase
Variable Shiblon._liquidityShare (#437) is not in mixedCase
Variable Shiblon._marketingShare (#438) is not in mixedCase
Variable Shiblon._BurnedShare (#439) is not in mixedCase
Variable Shiblon._totalTaxIfBuying (#441) is not in mixedCase
Variable Shiblon._totalTaxIfSelling (#442) is not in mixedCase
Variable Shiblon._totalDistributionShares (#443) is not in mixedCase
Variable Shiblon._maxTxAmount (#446) is not in mixedCase
Variable Shiblon._walletMax (#447) is not in mixedCase
Variable Shiblon.V2router (#450) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#30)" inContext (#23-33)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in Shiblon.swapAndLiquify(uint256) (#724-746):
External calls:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#739)
- recipient.transfer(amount) (#645)
- transferToAddressETH(BurnedWalletAddress,amountBNBBurned) (#742)
- recipient.transfer(amount) (#645)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#739)
- recipient.transfer(amount) (#645)
- transferToAddressETH(BurnedWalletAddress,amountBNBBurned) (#742)
- recipient.transfer(amount) (#645)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
- V2router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#770-777)
State variables written after the call(s):
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
- _allowances[owner][spender] = amount (#563)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#564)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#745)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#282) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#283)
Prevent variables from having similar names.

Additional information: link

Shiblon.slitherConstructorVariables() (#410-800) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (#420)
Shiblon.slitherConstructorVariables() (#410-800) uses literals with too many digits:
- _totalSupply = 1000000000 * 10 ** _decimals (#445)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Shiblon._decimals (#416) should be constant
Shiblon._name (#414) should be constant
Shiblon._symbol (#415) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

waiveOwnership() should be declared external:
- Ownable.waiveOwnership() (#176-179)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#181-185)
getUnlockTime() should be declared external:
- Ownable.getUnlockTime() (#187-189)
getTime() should be declared external:
- Ownable.getTime() (#191-193)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#195-200)
unlock() should be declared external:
- Ownable.unlock() (#202-207)
name() should be declared external:
- Shiblon.name() (#512-514)
symbol() should be declared external:
- Shiblon.symbol() (#516-518)
decimals() should be declared external:
- Shiblon.decimals() (#520-522)
totalSupply() should be declared external:
- Shiblon.totalSupply() (#524-526)
allowance(address,address) should be declared external:
- Shiblon.allowance(address,address) (#532-534)
increaseAllowance(address,uint256) should be declared external:
- Shiblon.increaseAllowance(address,uint256) (#540-543)
decreaseAllowance(address,uint256) should be declared external:
- Shiblon.decreaseAllowance(address,uint256) (#545-548)
minimumTokensBeforeSwapAmount() should be declared external:
- Shiblon.minimumTokensBeforeSwapAmount() (#550-552)
approve(address,uint256) should be declared external:
- Shiblon.approve(address,uint256) (#554-557)
setMarketPairStatus(address,bool) should be declared external:
- Shiblon.setMarketPairStatus(address,bool) (#567-569)
setIsExcludedFromFee(address,bool) should be declared external:
- Shiblon.setIsExcludedFromFee(address,bool) (#575-577)
setSwapAndLiquifyEnabled(bool) should be declared external:
- Shiblon.setSwapAndLiquifyEnabled(bool) (#631-634)
setSwapAndLiquifyByLimitOnly(bool) should be declared external:
- Shiblon.setSwapAndLiquifyByLimitOnly(bool) (#636-638)
getCirculatingSupply() should be declared external:
- Shiblon.getCirculatingSupply() (#640-642)
changeRouterVersion(address) should be declared external:
- Shiblon.changeRouterVersion(address) (#648-665)
transfer(address,uint256) should be declared external:
- Shiblon.transfer(address,uint256) (#669-672)
transferFrom(address,address,uint256) should be declared external:
- Shiblon.transferFrom(address,address,uint256) (#674-678)
Use the external attribute for functions never called from the contract.

Additional information: link

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.

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.

Contract has 0% buy tax and 14% 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 website, listings and other project-related information

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank