BKING [Beast King] Token

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

DividendHelper.withdraw() (BeastKing.sol#30-33) sends eth to arbitrary user
Dangerous calls:
- address(_ca).call{value: address(this).balance}() (BeastKing.sol#32)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in BeastKing._transfer(address,address,uint256) (BeastKing.sol#282-313):
External calls:
- swapTaxForBNB(MIN_TAX_FOR_SWAPPING) (BeastKing.sol#296)
- IPancakePair(LP_PAIR).swap(0,amountOut,address(_dividendHelper),new bytes(0)) (BeastKing.sol#251)
- _dividendHelper.withdraw() (BeastKing.sol#252)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
External calls sending eth:
- swapTaxForBNB(MIN_TAX_FOR_SWAPPING) (BeastKing.sol#296)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
State variables written after the call(s):
- _balances[recipient] = _balances[recipient].add(amount) (BeastKing.sol#307)
Reentrancy in BeastKing._transfer(address,address,uint256) (BeastKing.sol#282-313):
External calls:
- swapTaxForBNB(MIN_TAX_FOR_SWAPPING) (BeastKing.sol#296)
- IPancakePair(LP_PAIR).swap(0,amountOut,address(_dividendHelper),new bytes(0)) (BeastKing.sol#251)
- _dividendHelper.withdraw() (BeastKing.sol#252)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
- distributeDividends() (BeastKing.sol#310)
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
External calls sending eth:
- swapTaxForBNB(MIN_TAX_FOR_SWAPPING) (BeastKing.sol#296)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
- distributeDividends() (BeastKing.sol#310)
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
State variables written after the call(s):
- distributeDividends() (BeastKing.sol#310)
- _totalDividend -= distributed (BeastKing.sol#229)
- _changeDividendPermission(sender) (BeastKing.sol#311)
- timeForNextDividend[holder] = block.timestamp + DIVIDEND_PERIOD (BeastKing.sol#273)
- timeForNextDividend[holder] = 0 (BeastKing.sol#278)
- _changeDividendPermission(recipient) (BeastKing.sol#312)
- timeForNextDividend[holder] = block.timestamp + DIVIDEND_PERIOD (BeastKing.sol#273)
- timeForNextDividend[holder] = 0 (BeastKing.sol#278)
Reentrancy in BeastKing.distributeDividends() (BeastKing.sol#197-230):
External calls:
- distributed += _processDividend(holder,tokenAmount,_totalDividend) (BeastKing.sol#215)
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
State variables written after the call(s):
- _totalDividend -= distributed (BeastKing.sol#229)
- currentDividendIndex += 1 (BeastKing.sol#218)
- currentDividendIndex = 0 (BeastKing.sol#220)
- currentDividendIndex += 1 (BeastKing.sol#224)
- currentDividendIndex = 0 (BeastKing.sol#226)
Reentrancy in BeastKing.manualClaimDividend() (BeastKing.sol#191-195):
External calls:
- claimed = _processDividend(msg.sender,tokenAmountForDividend(),_totalDividend) (BeastKing.sol#193)
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
State variables written after the call(s):
- _totalDividend -= claimed (BeastKing.sol#194)
Reentrancy in BeastKing.swapTaxForBNB(uint256) (BeastKing.sol#240-262):
External calls:
- IPancakePair(LP_PAIR).swap(0,amountOut,address(_dividendHelper),new bytes(0)) (BeastKing.sol#251)
- _dividendHelper.withdraw() (BeastKing.sol#252)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
External calls sending eth:
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
State variables written after the call(s):
- _totalDividend = address(this).balance (BeastKing.sol#261)
Apply the check-effects-interactions pattern.

Additional information: link

BeastKing._transfer(address,address,uint256) (BeastKing.sol#282-313) uses a dangerous strict equality:
- _limitBuyUntil == 0 && recipient == LP_PAIR (BeastKing.sol#303)
Don't use strict equality to determine if an account has enough Ether or tokens.

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.

Context._msgData() (Context.sol#21-23) is never used and should be removed
EnumerableSet._values(EnumerableSet.Set) (EnumerableSet.sol#142-144) is never used and should be removed
EnumerableSet.add(EnumerableSet.Bytes32Set,bytes32) (EnumerableSet.sol#158-160) is never used and should be removed
EnumerableSet.add(EnumerableSet.UintSet,uint256) (EnumerableSet.sol#297-299) is never used and should be removed
EnumerableSet.at(EnumerableSet.Bytes32Set,uint256) (EnumerableSet.sol#196-198) is never used and should be removed
EnumerableSet.at(EnumerableSet.UintSet,uint256) (EnumerableSet.sol#335-337) is never used and should be removed
EnumerableSet.contains(EnumerableSet.Bytes32Set,bytes32) (EnumerableSet.sol#175-177) is never used and should be removed
EnumerableSet.contains(EnumerableSet.UintSet,uint256) (EnumerableSet.sol#314-316) is never used and should be removed
EnumerableSet.length(EnumerableSet.Bytes32Set) (EnumerableSet.sol#182-184) is never used and should be removed
EnumerableSet.length(EnumerableSet.UintSet) (EnumerableSet.sol#321-323) is never used and should be removed
EnumerableSet.remove(EnumerableSet.Bytes32Set,bytes32) (EnumerableSet.sol#168-170) is never used and should be removed
EnumerableSet.remove(EnumerableSet.UintSet,uint256) (EnumerableSet.sol#307-309) is never used and should be removed
EnumerableSet.values(EnumerableSet.AddressSet) (EnumerableSet.sol#274-283) is never used and should be removed
EnumerableSet.values(EnumerableSet.Bytes32Set) (EnumerableSet.sol#208-210) is never used and should be removed
EnumerableSet.values(EnumerableSet.UintSet) (EnumerableSet.sol#347-356) is never used and should be removed
SafeMath.div(uint256,uint256) (SafeMath.sol#135-137) is never used and should be removed
SafeMath.div(uint256,uint256,string) (SafeMath.sol#191-200) is never used and should be removed
SafeMath.mod(uint256,uint256) (SafeMath.sol#151-153) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (SafeMath.sol#217-226) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (SafeMath.sol#22-28) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (SafeMath.sol#64-69) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (SafeMath.sol#76-81) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (SafeMath.sol#47-57) is never used and should be removed
SafeMath.trySub(uint256,uint256) (SafeMath.sol#35-40) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.8.0 (BeastKing.sol#3) allows old versions
Pragma version^0.8.0 (Context.sol#4) allows old versions
Pragma version^0.8.0 (EnumerableSet.sol#4) allows old versions
Pragma version^0.8.0 (SafeMath.sol#4) allows old versions
solc-0.8.0 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

DividendHelper.withdraw() (BeastKing.sol#30-33) ignores return value by address(_ca).call{value: address(this).balance}() (BeastKing.sol#32)
BeastKing.swapTaxForBNB(uint256) (BeastKing.sol#240-262) ignores return value by address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
BeastKing.swapTaxForBNB(uint256) (BeastKing.sol#240-262) ignores return value by address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
Ensure that the return value of a low-level call is checked or logged.

Additional information: link

BeastKing._changeDividendPermission(address) (BeastKing.sol#266-280) ignores return value by _holders.add(holder) (BeastKing.sol#272)
BeastKing._changeDividendPermission(address) (BeastKing.sol#266-280) ignores return value by _holders.remove(holder) (BeastKing.sol#277)
Ensure that all the return values of the function calls are used.

Additional information: link

BeastKing.setGasForDividend(uint256) (BeastKing.sol#152-155) should emit an event for:
- gasForDividend = newValue (BeastKing.sol#154)
BeastKing.setGasForSingleDividend(uint256) (BeastKing.sol#157-160) should emit an event for:
- gasForSingleDividend = newValue (BeastKing.sol#159)
Emit an event for critical parameter changes.

Additional information: link

BeastKing._processDividend(address,uint256,uint256) (BeastKing.sol#178-189) has external calls inside a loop: (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
Favor pull over push strategy for external calls.

Additional information: link

Reentrancy in BeastKing.transferFrom(address,address,uint256) (BeastKing.sol#131-135):
External calls:
- _transfer(sender,recipient,amount) (BeastKing.sol#132)
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
- IPancakePair(LP_PAIR).swap(0,amountOut,address(_dividendHelper),new bytes(0)) (BeastKing.sol#251)
- _dividendHelper.withdraw() (BeastKing.sol#252)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
External calls sending eth:
- _transfer(sender,recipient,amount) (BeastKing.sol#132)
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,Beast King: transfer amount exceeds allowance)) (BeastKing.sol#133)
- _allowances[owner][spender] = amount (BeastKing.sol#319)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in BeastKing._transfer(address,address,uint256) (BeastKing.sol#282-313):
External calls:
- swapTaxForBNB(MIN_TAX_FOR_SWAPPING) (BeastKing.sol#296)
- IPancakePair(LP_PAIR).swap(0,amountOut,address(_dividendHelper),new bytes(0)) (BeastKing.sol#251)
- _dividendHelper.withdraw() (BeastKing.sol#252)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
External calls sending eth:
- swapTaxForBNB(MIN_TAX_FOR_SWAPPING) (BeastKing.sol#296)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (BeastKing.sol#308)
Reentrancy in BeastKing.transferFrom(address,address,uint256) (BeastKing.sol#131-135):
External calls:
- _transfer(sender,recipient,amount) (BeastKing.sol#132)
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
- IPancakePair(LP_PAIR).swap(0,amountOut,address(_dividendHelper),new bytes(0)) (BeastKing.sol#251)
- _dividendHelper.withdraw() (BeastKing.sol#252)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
External calls sending eth:
- _transfer(sender,recipient,amount) (BeastKing.sol#132)
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
Event emitted after the call(s):
- Approval(owner,spender,amount) (BeastKing.sol#320)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,Beast King: transfer amount exceeds allowance)) (BeastKing.sol#133)
Apply the check-effects-interactions pattern.

Additional information: link

BeastKing.manualClaimDividend() (BeastKing.sol#191-195) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp >= timeForNextDividend[msg.sender],Beast King: cannot claim now) (BeastKing.sol#192)
BeastKing.distributeDividends() (BeastKing.sol#197-230) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp >= timeForNextDividend[holder] (BeastKing.sol#214)
BeastKing._transfer(address,address,uint256) (BeastKing.sol#282-313) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp < _limitBuyUntil (BeastKing.sol#298)
- _limitBuyUntil == 0 && recipient == LP_PAIR (BeastKing.sol#303)
Avoid relying on block.timestamp.

Additional information: link

EnumerableSet.values(EnumerableSet.AddressSet) (EnumerableSet.sol#274-283) uses assembly
- INLINE ASM (EnumerableSet.sol#278-280)
EnumerableSet.values(EnumerableSet.UintSet) (EnumerableSet.sol#347-356) uses assembly
- INLINE ASM (EnumerableSet.sol#351-353)
Do not use evm assembly.

Additional information: link

BeastKing.nonReentrant() (BeastKing.sol#171-176) has costly operations inside a loop:
- _lock = true (BeastKing.sol#173)
BeastKing.nonReentrant() (BeastKing.sol#171-176) has costly operations inside a loop:
- _lock = false (BeastKing.sol#175)
BeastKing.distributeDividends() (BeastKing.sol#197-230) has costly operations inside a loop:
- currentDividendIndex += 1 (BeastKing.sol#218)
BeastKing.distributeDividends() (BeastKing.sol#197-230) has costly operations inside a loop:
- currentDividendIndex = 0 (BeastKing.sol#220)
BeastKing.distributeDividends() (BeastKing.sol#197-230) has costly operations inside a loop:
- currentDividendIndex += 1 (BeastKing.sol#224)
BeastKing.distributeDividends() (BeastKing.sol#197-230) has costly operations inside a loop:
- currentDividendIndex = 0 (BeastKing.sol#226)
Use a local variable to hold the loop computation result.

Additional information: link

Low level call in DividendHelper.withdraw() (BeastKing.sol#30-33):
- address(_ca).call{value: address(this).balance}() (BeastKing.sol#32)
Low level call in BeastKing._processDividend(address,uint256,uint256) (BeastKing.sol#178-189):
- (success) = address(holder).call{gas: gasForSingleDividend,value: dividend}() (BeastKing.sol#184)
Low level call in BeastKing.swapTaxForBNB(uint256) (BeastKing.sol#240-262):
- address(MARKETING_WALLET).call{value: marketingFee}() (BeastKing.sol#258)
- address(BUYBACK_WALLET).call{value: buybackFee}() (BeastKing.sol#259)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

BeastKing.constructor() (BeastKing.sol#79-91) uses literals with too many digits:
- gasForDividend = 400000 (BeastKing.sol#85)
BeastKing.setGasForDividend(uint256) (BeastKing.sol#152-155) uses literals with too many digits:
- require(bool,string)(newValue >= 200000 && newValue <= 600000,Beast King: gas limit for dividend must be between 200000 and 600000) (BeastKing.sol#153)
BeastKing.slitherConstructorConstantVariables() (BeastKing.sol#39-322) uses literals with too many digits:
- DEAD_WALLET = 0x000000000000000000000000000000000000dEaD (BeastKing.sol#58)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

increaseAllowance(address,uint256) should be declared external:
- BeastKing.increaseAllowance(address,uint256) (BeastKing.sol#137-140)
decreaseAllowance(address,uint256) should be declared external:
- BeastKing.decreaseAllowance(address,uint256) (BeastKing.sol#142-145)
Use the external attribute for functions never called from the contract.

Additional information: link

Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.

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

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