XOB [Xuanyuan alliance games] Token

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

Token.setShare(address) (#981-990) uses a dangerous strict equality:
- IERC20(uniswapV2Pair).balanceOf(shareholder) == 0 (#983)
Token.setShare(address) (#981-990) uses a dangerous strict equality:
- IERC20(uniswapV2Pair).balanceOf(shareholder) == 0 (#986)
Token.transferFrom(address,address,uint256) (#760-776) uses a dangerous strict equality:
- _startTimeForSwap == 0 && recipient == uniswapV2Pair (#765)
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)

Token._takeInviterFee(address,address,uint256) (#1026-1062) performs a multiplication on the result of a division:
-_tOwned[marketAddr] = _tOwned[marketAddr].add(tAmount.div(10000).mul(_inviterFee)) (#1038)
Token._takeInviterFee(address,address,uint256) (#1026-1062) performs a multiplication on the result of a division:
-Transfer(sender,marketAddr,tAmount.div(10000).mul(_inviterFee)) (#1039)
Token._takeInviterFee(address,address,uint256) (#1026-1062) performs a multiplication on the result of a division:
-_tOwned[marketAddr] = _tOwned[marketAddr].add(tAmount.div(10000).mul(_inviterFee.sub(accurRate))) (#1060)
Token._takeInviterFee(address,address,uint256) (#1026-1062) performs a multiplication on the result of a division:
-Transfer(sender,marketAddr,tAmount.div(10000).mul(_inviterFee.sub(accurRate))) (#1061)
Token._takeInviterFee(address,address,uint256) (#1026-1062) performs a multiplication on the result of a division:
-curTAmount = tAmount.div(10000).mul(rate) (#1056)
Token._takeTransfer(address,address,uint256,uint256) (#1078-1088) performs a multiplication on the result of a division:
-rAmount = tAmount.div(10000).mul(currentRate) (#1085)
Token._transferStandard(address,address,uint256) (#1090-1116) performs a multiplication on the result of a division:
-_takeburnFee(sender,tAmount.div(10000).mul(_burnFee)) (#1098)
Token._transferStandard(address,address,uint256) (#1090-1116) performs a multiplication on the result of a division:
-_takeLPFee(sender,tAmount.div(10000).mul(_LPFee)) (#1102)
Token._transferStandard(address,address,uint256) (#1090-1116) performs a multiplication on the result of a division:
-_tOwned[recipient] = _tOwned[recipient].add(tAmount.div(10000).mul(recipientRate)) (#1112-1114)
Token._transferStandard(address,address,uint256) (#1090-1116) performs a multiplication on the result of a division:
-Transfer(sender,recipient,tAmount.div(10000).mul(recipientRate)) (#1115)
Consider ordering multiplication before division.

Additional information: link

Reentrancy in Token._transfer(address,address,uint256) (#857-939):
External calls:
- swapTokensForTokens(contractTokenBalance) (#920)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1160-1166)
- dividendMarketAddr(tokenBal.mul(_marketingFee).div(_LPFee.add(_marketingFee))) (#935)
- (b1) = TOKEN.call(abi.encodeWithSignature(transfer(address,uint256),shareholder,amount)) (#976)
- process(distributorGas) (#936)
- (b1) = TOKEN.call(abi.encodeWithSignature(transfer(address,uint256),shareholder,amount)) (#976)
State variables written after the call(s):
- LPFeefenhong = block.timestamp (#937)
Reentrancy in Token.process(uint256) (#942-973):
External calls:
- distributeDividend(shareholders[currentIndex],amount) (#967)
- (b1) = TOKEN.call(abi.encodeWithSignature(transfer(address,uint256),shareholder,amount)) (#976)
State variables written after the call(s):
- currentIndex ++ (#970)
Apply the check-effects-interactions pattern.

Additional information: link

Token.allowance(address,address).owner (#735) shadows:
- Ownable.owner() (#99-101) (function)
Token._approve(address,address,uint256).owner (#846) shadows:
- Ownable.owner() (#99-101) (function)
Rename the local variables that shadow another component.

Additional information: link

Token.setSwapTokensAtAmount(uint256) (#1135-1137) should emit an event for:
- swapTokensAtAmount = value (#1136)
Token.setMinLPDividendToken(uint256) (#1183-1185) should emit an event for:
- minLPDividendToken = _minLPDividendToken (#1184)
Emit an event for critical parameter changes.

Additional information: link

Reentrancy in Token._transfer(address,address,uint256) (#857-939):
External calls:
- swapTokensForTokens(contractTokenBalance) (#920)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1160-1166)
State variables written after the call(s):
- setShare(fromAddress) (#929)
- _updated[shareholder] = false (#997)
- _updated[shareholder] = true (#988)
- setShare(toAddress) (#930)
- _updated[shareholder] = false (#997)
- _updated[shareholder] = true (#988)
- fromAddress = from (#927)
- fromAddress = from (#932)
- setShare(fromAddress) (#929)
- shareholderIndexes[shareholder] = shareholders.length (#992)
- shareholderIndexes[shareholders[shareholders.length - 1]] = shareholderIndexes[shareholder] (#1001)
- setShare(toAddress) (#930)
- shareholderIndexes[shareholder] = shareholders.length (#992)
- shareholderIndexes[shareholders[shareholders.length - 1]] = shareholderIndexes[shareholder] (#1001)
- setShare(fromAddress) (#929)
- shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length - 1] (#1000)
- shareholders.push(shareholder) (#993)
- shareholders.pop() (#1002)
- setShare(toAddress) (#930)
- shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length - 1] (#1000)
- shareholders.push(shareholder) (#993)
- shareholders.pop() (#1002)
- toAddress = to (#928)
- toAddress = to (#933)
Reentrancy in Token.constructor(string,string,uint8,uint256,address[6],uint256[3],uint256[3],uint256,uint256) (#651-704):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#685-686)
State variables written after the call(s):
- TOKEN = addrs[5] (#698)
- _isExcludedFromFee[msg.sender] = true (#692)
- _isExcludedFromFee[adminAddress] = true (#693)
- _isExcludedFromFee[address(this)] = true (#694)
- isDividendExempt[address(this)] = true (#695)
- isDividendExempt[address(0)] = true (#696)
- isDividendExempt[address(0xdead)] = true (#697)
- swapTokensAtAmount = _tTotal.mul(2).div(10 ** 6) (#699)
- uniswapV2Router = _uniswapV2Router (#689)
Reentrancy in Token.transferFrom(address,address,uint256) (#760-776):
External calls:
- _transfer(sender,recipient,amount) (#766)
- (b1) = TOKEN.call(abi.encodeWithSignature(transfer(address,uint256),shareholder,amount)) (#976)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1160-1166)
State variables written after the call(s):
- _approve(sender,msg.sender,_allowances[sender][msg.sender].sub(amount,ERC20: transfer amount exceeds allowance)) (#767-774)
- _allowances[owner][spender] = amount (#853)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Token.constructor(string,string,uint8,uint256,address[6],uint256[3],uint256[3],uint256,uint256) (#651-704):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#685-686)
Event emitted after the call(s):
- Transfer(address(0),adminAddress,_tTotal) (#701)
Reentrancy in Token.transferFrom(address,address,uint256) (#760-776):
External calls:
- _transfer(sender,recipient,amount) (#766)
- (b1) = TOKEN.call(abi.encodeWithSignature(transfer(address,uint256),shareholder,amount)) (#976)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1160-1166)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#854)
- _approve(sender,msg.sender,_allowances[sender][msg.sender].sub(amount,ERC20: transfer amount exceeds allowance)) (#767-774)
Apply the check-effects-interactions pattern.

Additional information: link

Token.transferFrom(address,address,uint256) (#760-776) uses timestamp for comparisons
Dangerous comparisons:
- _startTimeForSwap == 0 && recipient == uniswapV2Pair (#765)
Token._transfer(address,address,uint256) (#857-939) uses timestamp for comparisons
Dangerous comparisons:
- (_startTimeForSwap + _limitTimeMaxTx) > block.timestamp && to != uniswapV2Pair && from == uniswapV2Pair (#867)
- _startTimeForSwap + _intervalSecondsForSwap > block.timestamp (#875)
- tokenBal >= minLPDividendToken && from != address(this) && LPFeefenhong.add(minPeriod) <= block.timestamp (#934)
Avoid relying on block.timestamp.

Additional information: link

Low level call in Token.distributeDividend(address,uint256) (#975-978):
- (b1) = TOKEN.call(abi.encodeWithSignature(transfer(address,uint256),shareholder,amount)) (#976)
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() (#301) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#303) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#334) is not in mixedCase
Function IUniswapV2Router01.WETH() (#380) is not in mixedCase
Parameter Token.transferTokensAvg(address[],uint256)._tos (#1169) is not in mixedCase
Parameter Token.setMinLPDividendToken(uint256)._minLPDividendToken (#1183) is not in mixedCase
Parameter Token.setDividendExempt(address,bool)._value (#1187) is not in mixedCase
Variable Token.TOKEN (#595) is not in mixedCase
Variable Token._name (#598) is not in mixedCase
Variable Token._symbol (#599) is not in mixedCase
Variable Token._decimals (#600) is not in mixedCase
Variable Token._burnFee (#604) is not in mixedCase
Variable Token._LPFee (#608) is not in mixedCase
Variable Token._marketingFee (#611) is not in mixedCase
Variable Token._inviterFee (#614) is not in mixedCase
Variable Token.LPFeefenhong (#620) is not in mixedCase
Variable Token._startTimeForSwap (#634) is not in mixedCase
Variable Token._limitTimeMaxTx (#645) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#385) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#386)
Prevent variables from having similar names.

Additional information: link

Token.slitherConstructorVariables() (#583-1205) uses literals with too many digits:
- distributorGas = 500000 (#618)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Ownable._previousOwner (#87) is never used in Token (#583-1205)
Ownable._lockTime (#88) is never used in Token (#583-1205)
Remove unused state variables.

Additional information: link

Ownable._lockTime (#88) should be constant
Ownable._previousOwner (#87) should be constant
Token._intervalSecondsForSwap (#635) should be constant
Token._limitTimeMaxTx (#645) should be constant
Token.distributorGas (#618) should be constant
Token.minPeriod (#619) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#108-111)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#113-117)
name() should be declared external:
- Token.name() (#706-708)
symbol() should be declared external:
- Token.symbol() (#710-712)
decimals() should be declared external:
- Token.decimals() (#714-716)
totalSupply() should be declared external:
- Token.totalSupply() (#718-720)
transfer(address,uint256) should be declared external:
- Token.transfer(address,uint256) (#726-733)
allowance(address,address) should be declared external:
- Token.allowance(address,address) (#735-742)
approve(address,uint256) should be declared external:
- Token.approve(address,uint256) (#744-758)
transferFrom(address,address,uint256) should be declared external:
- Token.transferFrom(address,address,uint256) (#760-776)
increaseAllowance(address,uint256) should be declared external:
- Token.increaseAllowance(address,uint256) (#778-789)
decreaseAllowance(address,uint256) should be declared external:
- Token.decreaseAllowance(address,uint256) (#791-805)
isExcludedFromFee(address) should be declared external:
- Token.isExcludedFromFee(address) (#809-811)
excludeFromFee(address) should be declared external:
- Token.excludeFromFee(address) (#812-814)
includeInFee(address) should be declared external:
- Token.includeInFee(address) (#816-818)
setBot(address,bool) should be declared external:
- Token.setBot(address,bool) (#1119-1121)
getBot(address) should be declared external:
- Token.getBot(address) (#1123-1125)
transferContracts() should be declared external:
- Token.transferContracts() (#1131-1133)
setSwapTokensAtAmount(uint256) should be declared external:
- Token.setSwapTokensAtAmount(uint256) (#1135-1137)
transferTokensAvg(address[],uint256) should be declared external:
- Token.transferTokensAvg(address[],uint256) (#1169-1178)
testDividend(uint256) should be declared external:
- Token.testDividend(uint256) (#1179-1181)
setMinLPDividendToken(uint256) should be declared external:
- Token.setMinLPDividendToken(uint256) (#1183-1185)
setDividendExempt(address,bool) should be declared external:
- Token.setDividendExempt(address,bool) (#1187-1189)
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 less than 100. Token is either dead or inactive. Ignore for presale.

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