VAULT-S Token

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

VAULTS.swapBack(uint256) (VaultS.sol#624-654) sends eth to arbitrary user
Dangerous calls:
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in VAULTS._transferFrom(address,address,uint256) (VaultS.sol#464-505):
External calls:
- swapBack(_tokenSwapThreshold) (VaultS.sol#483)
- _router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp + 300) (VaultS.sol#630-636)
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
External calls sending eth:
- swapBack(_tokenSwapThreshold) (VaultS.sol#483)
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (VaultS.sol#486)
- _rOwned[receiver] = _rOwned[receiver].add(rAmount) (VaultS.sol#593)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (VaultS.sol#538)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (VaultS.sol#544)
- _tokenTransfer(from,to,amount,takeFee) (VaultS.sol#486)
- _rTotal = _rTotal.sub(rFee) (VaultS.sol#605)
- _tokenTransfer(from,to,amount,takeFee) (VaultS.sol#486)
- _tOwned[receiver] = _tOwned[receiver].add(tAmount) (VaultS.sol#595)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (VaultS.sol#536)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (VaultS.sol#542)
Apply the check-effects-interactions pattern.

Additional information: link

VAULTS.withdrawForeignToken(address) (VaultS.sol#173-180) ignores return value by IERC20(token).transfer(msg.sender,bal) (VaultS.sol#177)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

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.

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.

Contract name (Vault-S) 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.

Contract ticker (VAULT-S) 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.

VAULTS.transferOwnership(address).newOwner (VaultS.sol#156) lacks a zero-check on :
- _owner = newOwner (VaultS.sol#157)
Check that the address is not zero.

Additional information: link

Variable 'VAULTS.swapBack(uint256).success (VaultS.sol#643)' in VAULTS.swapBack(uint256) (VaultS.sol#624-654) potentially used before declaration: (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.

Additional information: link

VAULTS._tokenTransfer(address,address,uint256,bool) (VaultS.sol#523-572) performs a multiplication on the result of a division:
-tFee = tAmount.mul(fee).div(feeDenominator) (VaultS.sol#528)
-burnAmount = tFee.mul(_burnPercentage).div(100) (VaultS.sol#550)
Consider ordering multiplication before division.

Additional information: link

VAULTS.swapBack(uint256).success_scope_0 (VaultS.sol#649) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

Reentrancy in VAULTS._transferFrom(address,address,uint256) (VaultS.sol#464-505):
External calls:
- swapBack(_tokenSwapThreshold) (VaultS.sol#483)
- _router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp + 300) (VaultS.sol#630-636)
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
External calls sending eth:
- swapBack(_tokenSwapThreshold) (VaultS.sol#483)
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (VaultS.sol#486)
- _totalReflections = _totalReflections.add(tFee) (VaultS.sol#606)
Reentrancy in VAULTS.constructor(address) (VaultS.sol#97-146):
External calls:
- _pair = IUniswapV2Factory(_router.factory()).createPair(address(this),_router.WETH()) (VaultS.sol#103-104)
State variables written after the call(s):
- _distributor = IDistributor(distributor) (VaultS.sol#107)
- _excludeFromReward(address(this)) (VaultS.sol#110)
- _excluded.push(account) (VaultS.sol#618)
- _excludeFromReward(_burnWallet) (VaultS.sol#111)
- _excluded.push(account) (VaultS.sol#618)
- _excludeFromReward(_pair) (VaultS.sol#112)
- _excluded.push(account) (VaultS.sol#618)
- _excludeFromReward(address(this)) (VaultS.sol#110)
- _isExcluded[account] = true (VaultS.sol#617)
- _excludeFromReward(_burnWallet) (VaultS.sol#111)
- _isExcluded[account] = true (VaultS.sol#617)
- _excludeFromReward(_pair) (VaultS.sol#112)
- _isExcluded[account] = true (VaultS.sol#617)
- _owner = msg.sender (VaultS.sol#131)
- _rOwned[msg.sender] = _rTotal (VaultS.sol#132)
- _excludeFromReward(address(this)) (VaultS.sol#110)
- _tOwned[account] = tokenFromReflection(_rOwned[account]) (VaultS.sol#615)
- _excludeFromReward(_burnWallet) (VaultS.sol#111)
- _tOwned[account] = tokenFromReflection(_rOwned[account]) (VaultS.sol#615)
- _excludeFromReward(_pair) (VaultS.sol#112)
- _tOwned[account] = tokenFromReflection(_rOwned[account]) (VaultS.sol#615)
- buyPath = new address[](2) (VaultS.sol#140)
- buyPath[0] = _router.WETH() (VaultS.sol#141)
- buyPath[1] = address(this) (VaultS.sol#142)
- exemptions[address(this)].isFeeExempt = true (VaultS.sol#115)
- exemptions[_burnWallet].isFeeExempt = true (VaultS.sol#116)
- exemptions[msg.sender].isFeeExempt = true (VaultS.sol#117)
- exemptions[distributor].isFeeExempt = true (VaultS.sol#118)
- exemptions[msg.sender].isTxLimitExempt = true (VaultS.sol#121)
- exemptions[address(this)].isTxLimitExempt = true (VaultS.sol#122)
- exemptions[_pair].isLiquidityPool = true (VaultS.sol#125)
- exemptions[distributor].isGasExempt = true (VaultS.sol#128)
- path = new address[](2) (VaultS.sol#135)
- path[0] = address(this) (VaultS.sol#136)
- path[1] = _router.WETH() (VaultS.sol#137)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in VAULTS._transferFrom(address,address,uint256) (VaultS.sol#464-505):
External calls:
- swapBack(_tokenSwapThreshold) (VaultS.sol#483)
- _router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp + 300) (VaultS.sol#630-636)
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
External calls sending eth:
- swapBack(_tokenSwapThreshold) (VaultS.sol#483)
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
Event emitted after the call(s):
- FeesDistributed(burnAmount,reflectAmount) (VaultS.sol#567)
- _tokenTransfer(from,to,amount,takeFee) (VaultS.sol#486)
- Transfer(sender,receiver,tAmount) (VaultS.sol#597)
- _tokenTransfer(from,to,amount,takeFee) (VaultS.sol#486)
- Transfer(sender,recipient,tTransferAmount) (VaultS.sol#571)
- _tokenTransfer(from,to,amount,takeFee) (VaultS.sol#486)
Reentrancy in VAULTS.constructor(address) (VaultS.sol#97-146):
External calls:
- _pair = IUniswapV2Factory(_router.factory()).createPair(address(this),_router.WETH()) (VaultS.sol#103-104)
Event emitted after the call(s):
- Transfer(address(0),msg.sender,_tTotal) (VaultS.sol#145)
Reentrancy in VAULTS.excludeFromRewards(address) (VaultS.sol#217-223):
External calls:
- _distributor.setShare(account,0) (VaultS.sol#221)
Event emitted after the call(s):
- ExcludeFromRewards(account) (VaultS.sol#222)
Reentrancy in VAULTS.includeInReward(address) (VaultS.sol#276-302):
External calls:
- _distributor.setShare(account,balanceOf(account)) (VaultS.sol#300)
Event emitted after the call(s):
- IncludeInRewards(account) (VaultS.sol#301)
Reentrancy in VAULTS.setPairAddress(address) (VaultS.sol#191-198):
External calls:
- _distributor.setShare(newPair,0) (VaultS.sol#196)
Event emitted after the call(s):
- UpdatedPairAddress(newPair) (VaultS.sol#197)
Reentrancy in VAULTS.swapBack(uint256) (VaultS.sol#624-654):
External calls:
- _router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp + 300) (VaultS.sol#630-636)
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
External calls sending eth:
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
Event emitted after the call(s):
- SwappedBack(tokenAmount) (VaultS.sol#653)
Reentrancy in VAULTS.withdrawBNB(uint256) (VaultS.sol#164-168):
External calls:
- (s) = address(msg.sender).call{value: amount}() (VaultS.sol#165)
Event emitted after the call(s):
- OwnerWithdraw(_router.WETH(),amount) (VaultS.sol#167)
Reentrancy in VAULTS.withdrawForeignToken(address) (VaultS.sol#173-180):
External calls:
- IERC20(token).transfer(msg.sender,bal) (VaultS.sol#177)
Event emitted after the call(s):
- OwnerWithdraw(token,bal) (VaultS.sol#179)
Apply the check-effects-interactions pattern.

Additional information: link

Address.isContract(address) (Address.sol#24-33) uses assembly
- INLINE ASM (Address.sol#31)
Address._functionCallWithValue(address,bytes,uint256,string) (Address.sol#117-138) uses assembly
- INLINE ASM (Address.sol#130-133)
Do not use evm assembly.

Additional information: link

VAULTS.includeInReward(address) (VaultS.sol#276-302) has costly operations inside a loop:
- _rTotal = _rTotal.sub(_rOwned[account] - newrOwned) (VaultS.sol#284)
VAULTS.includeInReward(address) (VaultS.sol#276-302) has costly operations inside a loop:
- _totalReflections = _totalReflections.add(_rOwned[account] - newrOwned) (VaultS.sol#285)
VAULTS.includeInReward(address) (VaultS.sol#276-302) has costly operations inside a loop:
- _excluded.pop() (VaultS.sol#296)
Use a local variable to hold the loop computation result.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (Address.sol#117-138) is never used and should be removed
Address.functionCall(address,bytes) (Address.sol#77-79) is never used and should be removed
Address.functionCall(address,bytes,string) (Address.sol#87-89) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (Address.sol#102-104) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (Address.sol#112-115) is never used and should be removed
Address.isContract(address) (Address.sol#24-33) is never used and should be removed
Address.sendValue(address,uint256) (Address.sol#51-57) is never used and should be removed
SafeMath.mod(uint256,uint256) (SafeMath.sol#125-127) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (SafeMath.sol#141-144) is never used and should be removed
Remove unused functions.

Additional information: link

VAULTS._rTotal (VaultS.sol#66) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
VAULTS._maxTxAmount (VaultS.sol#79) is set pre-construction with a non-constant function or state variable:
- _tTotal.div(100)
VAULTS._tokenSwapThreshold (VaultS.sol#80) is set pre-construction with a non-constant function or state variable:
- _tTotal.div(1000)
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

Low level call in Address.sendValue(address,uint256) (Address.sol#51-57):
- (success) = recipient.call{value: amount}() (Address.sol#55)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (Address.sol#117-138):
- (success,returndata) = target.call{value: weiValue}(data) (Address.sol#121)
Low level call in VAULTS.withdrawBNB(uint256) (VaultS.sol#164-168):
- (s) = address(msg.sender).call{value: amount}() (VaultS.sol#165)
Low level call in VAULTS.swapBack(uint256) (VaultS.sol#624-654):
- (success) = address(collectorContract).call{value: collectorAmount}() (VaultS.sol#643)
- (success) = address(address(_distributor)).call{value: address(this).balance}() (VaultS.sol#649)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Router01.WETH() (IUniswapV2Router02.sol#8) is not in mixedCase
Constant VAULTS._name (VaultS.sol#22) is not in UPPER_CASE_WITH_UNDERSCORES
Constant VAULTS._symbol (VaultS.sol#23) is not in UPPER_CASE_WITH_UNDERSCORES
Constant VAULTS._decimals (VaultS.sol#24) is not in UPPER_CASE_WITH_UNDERSCORES
Variable VAULTS._router (VaultS.sol#27) is not in mixedCase
Variable VAULTS._pair (VaultS.sol#28) is not in mixedCase
Constant VAULTS._burnWallet (VaultS.sol#39) is not in UPPER_CASE_WITH_UNDERSCORES
Variable VAULTS._burnPercentage (VaultS.sol#70) is not in mixedCase
Variable VAULTS._sellFee (VaultS.sol#73) is not in mixedCase
Variable VAULTS._buyFee (VaultS.sol#74) is not in mixedCase
Variable VAULTS._transferFee (VaultS.sol#75) is not in mixedCase
Constant VAULTS.feeDenominator (VaultS.sol#76) is not in UPPER_CASE_WITH_UNDERSCORES
Variable VAULTS._maxTxAmount (VaultS.sol#79) is not in mixedCase
Variable VAULTS._tokenSwapThreshold (VaultS.sol#80) is not in mixedCase
Variable VAULTS._distributor (VaultS.sol#83) is not in mixedCase
Variable VAULTS._distributorGas (VaultS.sol#84) is not in mixedCase
Variable VAULTS._owner (VaultS.sol#91) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (IUniswapV2Router02.sol#13) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (IUniswapV2Router02.sol#14)
Variable VAULTS._getRValues(uint256,uint256,uint256).rTransferAmount (VaultS.sol#412) is too similar to VAULTS._tokenTransfer(address,address,uint256,bool).tTransferAmount (VaultS.sol#530)
Variable VAULTS._tokenTransfer(address,address,uint256,bool).rTransferAmount (VaultS.sol#532) is too similar to VAULTS._tokenTransfer(address,address,uint256,bool).tTransferAmount (VaultS.sol#530)
Prevent variables from having similar names.

Additional information: link

VAULTS.setDistributorGas(uint256) (VaultS.sol#304-308) uses literals with too many digits:
- require(bool)(gas < 10000000) (VaultS.sol#305)
VAULTS.slitherConstructorVariables() (VaultS.sol#16-693) uses literals with too many digits:
- _distributorGas = 200000 (VaultS.sol#84)
VAULTS.slitherConstructorConstantVariables() (VaultS.sol#16-693) uses literals with too many digits:
- _burnWallet = 0x000000000000000000000000000000000000dEaD (VaultS.sol#39)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

VAULTS._tTotal (VaultS.sol#65) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Average 30d PancakeSwap liquidity 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.

Swap operations require suspiciously high gas. Contract logic is complex and may disguise some form of scam.

Average 30d PancakeSwap volume is low.

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

Token is deployed only at one blockchain

Token has only one trading pair

Contract has 3% buy tax and 8% sell tax.
Taxes are low and contract ownership is renounced.

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

Additional information: link

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

Unable to find token contract audit

Unable to verify token contract address on the website

Unable to find audit link on the website

Unable to find whitepaper 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

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

Young tokens have high risks of price dump / death

Token has relatively low CoinGecko rank

Token has relatively low CoinMarketCap rank