DANGERMOON Token

DangerMoon.addLiquidity(uint256,uint256) (#1282-1295) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in DangerMoon._transfer(address,address,uint256) (#1209-1239):
External calls:
- swapAndLiquify(contractTokenBalance) (#1234)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1273-1279)
- _tokenTransfer(from,to,amount) (#1238)
- LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1234)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
State variables written after the call(s):
- _tokenTransfer(from,to,amount) (#1238)
- _balances[from] = _balances[from].sub(amount) (#1382)
- _balances[address(this)] = _balances[address(this)].add(liquidityFee) (#1193)
- _balances[to] = _balances[to].add(amount) (#1386)
- _balances[to] = _balances[to].add(amountMinusFees) (#1423)
Apply the check-effects-interactions pattern.

Additional information: link

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

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.

Contract ownership is not renounced (belongs to a wallet)

Reentrancy in DangerMoon._tokenTransfer(address,address,uint256) (#1379-1427):
External calls:
- _maybeDistributeCurrentReflection() (#1422)
- LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
State variables written after the call(s):
- _balances[to] = _balances[to].add(amountMinusFees) (#1423)
- _totalReceived[to] = _totalReceived[to].add(amountMinusFees) (#1424)
Apply the check-effects-interactions pattern.

Additional information: link

VRFConsumerBase.requestRandomness(bytes32,uint256,uint256) (#385-401) ignores return value by LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
DangerMoon.addLiquidity(uint256,uint256) (#1282-1295) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
DangerMoon._maybeDistributeCurrentReflection() (#1326-1347) ignores return value by _randNonce.add(1) (#1337)
Ensure that all the return values of the function calls are used.

Additional information: link

DangerMoon.allowance(address,address).owner (#1098) shadows:
- Ownable.owner() (#688-690) (function)
DangerMoon._approve(address,address,uint256).owner (#1201) shadows:
- Ownable.owner() (#688-690) (function)
Rename the local variables that shadow another component.

Additional information: link

VRFConsumerBase.constructor(address,address)._vrfCoordinator (#417) lacks a zero-check on :
- vrfCoordinator = _vrfCoordinator (#418)
Check that the address is not zero.

Additional information: link

Reentrancy in DangerMoon.constructor(address,address,address,bytes32,address,address) (#1014-1043):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1030-1031)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#1039)
- _isExcludedFromFee[address(this)] = true (#1040)
- charityAddress = _charityAddress (#1035)
- marketingAddress = _marketingAddress (#1036)
- uniswapV2Router = _uniswapV2Router (#1034)
Reentrancy in VRFConsumerBase.requestRandomness(bytes32,uint256,uint256) (#385-401):
External calls:
- LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
State variables written after the call(s):
- nonces[_keyHash] = nonces[_keyHash].add(1) (#399)
Reentrancy in DangerMoon.setUniswapPair(address) (#1145-1152):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1148-1149)
State variables written after the call(s):
- uniswapV2Router = _uniswapV2Router (#1151)
Reentrancy in DangerMoon.swapAndLiquify(uint256) (#1241-1262):
External calls:
- swapTokensForEth(half) (#1253)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1273-1279)
- addLiquidity(otherHalf,newBalance) (#1259)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1259)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1259)
- _allowances[owner][spender] = amount (#1205)
Reentrancy in DangerMoon.transferFrom(address,address,uint256) (#1107-1111):
External calls:
- _transfer(sender,recipient,amount) (#1108)
- LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1273-1279)
External calls sending eth:
- _transfer(sender,recipient,amount) (#1108)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount)) (#1109)
- _allowances[owner][spender] = amount (#1205)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in DangerMoon._maybeDistributeCurrentReflection() (#1326-1347):
External calls:
- requestRandomness(keyHash,linkFee,psuedoRandomSeed) (#1344)
- LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
Event emitted after the call(s):
- RequestedRandomness(now) (#1345)
Reentrancy in DangerMoon._tokenTransfer(address,address,uint256) (#1379-1427):
External calls:
- _maybeDistributeCurrentReflection() (#1422)
- LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
Event emitted after the call(s):
- Transfer(from,to,amountMinusFees) (#1425)
Reentrancy in DangerMoon._transfer(address,address,uint256) (#1209-1239):
External calls:
- swapAndLiquify(contractTokenBalance) (#1234)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1273-1279)
- _tokenTransfer(from,to,amount) (#1238)
- LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1234)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
Event emitted after the call(s):
- AddedReflectionEntry(recipient) (#1363)
- _tokenTransfer(from,to,amount) (#1238)
- CurrentReflection(now,_currentReflection) (#1351)
- _tokenTransfer(from,to,amount) (#1238)
- RequestedRandomness(now) (#1345)
- _tokenTransfer(from,to,amount) (#1238)
- Transfer(from,to,amount) (#1390)
- _tokenTransfer(from,to,amount) (#1238)
- Transfer(from,to,amountMinusFees) (#1425)
- _tokenTransfer(from,to,amount) (#1238)
Reentrancy in DangerMoon.constructor(address,address,address,bytes32,address,address) (#1014-1043):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1030-1031)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tokenTotal) (#1042)
Reentrancy in DangerMoon.swapAndLiquify(uint256) (#1241-1262):
External calls:
- swapTokensForEth(half) (#1253)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1273-1279)
- addLiquidity(otherHalf,newBalance) (#1259)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1259)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1206)
- addLiquidity(otherHalf,newBalance) (#1259)
- SwapAndLiquify(half,newBalance,otherHalf) (#1261)
Reentrancy in DangerMoon.transferFrom(address,address,uint256) (#1107-1111):
External calls:
- _transfer(sender,recipient,amount) (#1108)
- LINK.transferAndCall(vrfCoordinator,_fee,abi.encode(_keyHash,_seed)) (#388)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1273-1279)
External calls sending eth:
- _transfer(sender,recipient,amount) (#1108)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1287-1294)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1206)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount)) (#1109)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#735-740) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#737)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#540-549) uses assembly
- INLINE ASM (#547)
Address._functionCallWithValue(address,bytes,uint256,string) (#633-654) uses assembly
- INLINE ASM (#646-649)
Do not use evm assembly.

Additional information: link

Different versions of Solidity is used:
- Version used: ['^0.6.0', '^0.6.12']
- ^0.6.0 (#69)
- ^0.6.0 (#180)
- ^0.6.0 (#200)
- ^0.6.0 (#243)
- ^0.6.12 (#435)
Use one Solidity version.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#633-654) is never used and should be removed
Address.functionCall(address,bytes) (#593-595) is never used and should be removed
Address.functionCall(address,bytes,string) (#603-605) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#618-620) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#628-631) is never used and should be removed
Address.isContract(address) (#540-549) is never used and should be removed
Address.sendValue(address,uint256) (#567-573) is never used and should be removed
Context._msgData() (#512-515) is never used and should be removed
VRFConsumerBase.fulfillRandomness(bytes32,uint256) (#356-357) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.6.0 (#69) allows old versions
Pragma version^0.6.0 (#180) allows old versions
Pragma version^0.6.0 (#200) allows old versions
Pragma version^0.6.0 (#243) 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) (#567-573):
- (success) = recipient.call{value: amount}() (#571)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#633-654):
- (success,returndata) = target.call{value: weiValue}(data) (#637)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Parameter VRFRequestIDBase.makeVRFInputSeed(bytes32,uint256,address,uint256)._keyHash (#218) is not in mixedCase
Parameter VRFRequestIDBase.makeVRFInputSeed(bytes32,uint256,address,uint256)._userSeed (#218) is not in mixedCase
Parameter VRFRequestIDBase.makeVRFInputSeed(bytes32,uint256,address,uint256)._requester (#219) is not in mixedCase
Parameter VRFRequestIDBase.makeVRFInputSeed(bytes32,uint256,address,uint256)._nonce (#219) is not in mixedCase
Parameter VRFRequestIDBase.makeRequestId(bytes32,uint256)._keyHash (#235) is not in mixedCase
Parameter VRFRequestIDBase.makeRequestId(bytes32,uint256)._vRFInputSeed (#235) is not in mixedCase
Parameter VRFConsumerBase.requestRandomness(bytes32,uint256,uint256)._keyHash (#385) is not in mixedCase
Parameter VRFConsumerBase.requestRandomness(bytes32,uint256,uint256)._fee (#385) is not in mixedCase
Parameter VRFConsumerBase.requestRandomness(bytes32,uint256,uint256)._seed (#385) is not in mixedCase
Variable VRFConsumerBase.LINK (#403) is not in mixedCase
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#778) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#779) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#796) is not in mixedCase
Function IUniswapV2Router01.WETH() (#818) is not in mixedCase
Parameter DangerMoon.setUniswapPair(address)._uniswapV2RouterAddress (#1145) is not in mixedCase
Parameter DangerMoon.setMinimumTokensForReflection(uint256)._minTokensForReflection (#1160) is not in mixedCase
Parameter DangerMoon.setSwapAndLiquifyEnabled(bool)._enabled (#1173) is not in mixedCase
Parameter DangerMoon.setLockThePayout(bool)._lockThePayout (#1178) is not in mixedCase
Variable DangerMoon._maxTxAmount (#968) is not in mixedCase
Variable DangerMoon._minimumTokensForReflection (#969) is not in mixedCase
Variable DangerMoon._inDistribution (#990) is not in mixedCase
Function MockDangerMoon._fulfillRandomness(bytes32,uint256) (#1450-1452) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#513)" inContext (#507-516)
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 (#823) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#824)
Prevent variables from having similar names.

Additional information: link

MockDangerMoon.slitherConstructorVariables() (#1432-1454) uses literals with too many digits:
- _maxTxAmount = 5000000 * 10 ** 6 * 10 ** 9 (#968)
MockDangerMoon.slitherConstructorVariables() (#1432-1454) uses literals with too many digits:
- _tokenTotal = 1000000000 * 10 ** 6 * 10 ** 9 (#970)
MockDangerMoon.slitherConstructorVariables() (#1432-1454) uses literals with too many digits:
- burnAddress = 0x000000000000000000000000000000000000dEaD (#988)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

DangerMoon._decimals (#975) should be constant
DangerMoon._name (#973) should be constant
DangerMoon._randNonce (#977) should be constant
DangerMoon._symbol (#974) should be constant
DangerMoon._tokenTotal (#970) should be constant
DangerMoon.burnAddress (#988) should be constant
DangerMoon.numTokensSellToAddToLiquidity (#971) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#707-710)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#716-720)
geUnlockTime() should be declared external:
- Ownable.geUnlockTime() (#722-724)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#727-732)
unlock() should be declared external:
- Ownable.unlock() (#735-740)
name() should be declared external:
- DangerMoon.name() (#1045-1047)
symbol() should be declared external:
- DangerMoon.symbol() (#1049-1051)
decimals() should be declared external:
- DangerMoon.decimals() (#1053-1055)
totalSupply() should be declared external:
- DangerMoon.totalSupply() (#1057-1059)
totalReflected() should be declared external:
- DangerMoon.totalReflected() (#1065-1067)
currentReflection() should be declared external:
- DangerMoon.currentReflection() (#1069-1071)
numberOfReflectionEntries(address) should be declared external:
- DangerMoon.numberOfReflectionEntries(address) (#1073-1083)
linkBalance() should be declared external:
- DangerMoon.linkBalance() (#1089-1091)
transfer(address,uint256) should be declared external:
- DangerMoon.transfer(address,uint256) (#1093-1096)
allowance(address,address) should be declared external:
- DangerMoon.allowance(address,address) (#1098-1100)
approve(address,uint256) should be declared external:
- DangerMoon.approve(address,uint256) (#1102-1105)
transferFrom(address,address,uint256) should be declared external:
- DangerMoon.transferFrom(address,address,uint256) (#1107-1111)
increaseAllowance(address,uint256) should be declared external:
- DangerMoon.increaseAllowance(address,uint256) (#1113-1116)
decreaseAllowance(address,uint256) should be declared external:
- DangerMoon.decreaseAllowance(address,uint256) (#1118-1121)
excludeFromFee(address) should be declared external:
- DangerMoon.excludeFromFee(address) (#1123-1125)
includeInFee(address) should be declared external:
- DangerMoon.includeInFee(address) (#1127-1129)
resetReflectionEntries() should be declared external:
- DangerMoon.resetReflectionEntries() (#1132-1134)
getTotalReceived(address) should be declared external:
- DangerMoon.getTotalReceived(address) (#1136-1138)
getTotalWon(address) should be declared external:
- DangerMoon.getTotalWon(address) (#1140-1142)
setSwapAndLiquifyEnabled(bool) should be declared external:
- DangerMoon.setSwapAndLiquifyEnabled(bool) (#1173-1176)
setLockThePayout(bool) should be declared external:
- DangerMoon.setLockThePayout(bool) (#1178-1180)
isExcludedFromFee(address) should be declared external:
- DangerMoon.isExcludedFromFee(address) (#1197-1199)
_fulfillRandomness(bytes32,uint256) should be declared external:
- MockDangerMoon._fulfillRandomness(bytes32,uint256) (#1450-1452)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract has 10% buy tax and 10% sell tax.
Taxes are low but contract ownership is not renounced. Token has a high risk of becoming a honeypot.

Average 30d PancakeSwap volume is low.

Average 30d number of PancakeSwap swaps 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

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

Additional information: link

Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap

Additional information: link

Unable to find token contract audit

Unable to find audit link on the website

Unable to find whitepaper link on the website

Alexa traffic rank is very low

Additional information: link

Token has no active CoinMarketCap listing / rank

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinGecko rank