Watch DO [WDO] Token
About Watch DO
Listings
Website
WatchDO, a worldwide help project.
""We bring a global solution to a demand that has always been there since the
dawn of time.Watch do is a community token based on mutual aid and the desire to help
others. Who has never thought, I need help, who can I ask?
I will watch a video on Youtube to find help without being able to interact or
even find a quick answer in a hurry. Instead of asking yourself who you could call or what tutorial you should watch over and over again without being sure to get a solution to your problem.
We will connect you with helpers who will help you find a solution quickly.
Our Watch DO application will then become your best ally to solve your
problems. Conceived a few years ago, the $WDO will allow you to help your
neighbour with ease.
We are a french team with a french project !
The launch will happen the 28 december 2021
Social
Laser Scorebeta Last Audit: 2 March 2022
WDO.swapBack() (#563-610) sends eth to arbitrary user
Dangerous calls:
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
DividendDistributor.distributeDividend(address) (#310-321) ignores return value by Reward.transfer(shareholder,amount) (#316)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.
Additional information: link
Too many vulnerabilities (Unchecked transfer, Reentrancy vulnerability, etc.). High risk of a scam. DYOR & manual audit are advised.
Reentrancy in WDO._transferFrom(address,address,uint256) (#473-517):
External calls:
- swapBack() (#496)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#574-580)
- distributor.deposit{value: amountBNBReflection}() (#592)
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
External calls sending eth:
- swapBack() (#496)
- distributor.deposit{value: amountBNBReflection}() (#592)
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#499)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#502)
- amountReceived = takeFee(sender,amount) (#501)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#537)
Apply the check-effects-interactions pattern.
Additional information: link
Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains
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.
WDO.swapBack().tmpSuccess (#593) is written in both
(tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
tmpSuccess = false (#596)
WDO.swapBack().tmpSuccess2 (#594) is written in both
(tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
tmpSuccess2 = false (#597)
Fix or remove the writes.
Additional information: link
Contract ticker (Watch DO) 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.
WDO.swapBack() (#563-610) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
Ensure that all the return values of the function calls are used.
Additional information: link
DividendDistributor.distributeDividend(address) (#310-321) has external calls inside a loop: Reward.transfer(shareholder,amount) (#316)
Favor pull over push strategy for external calls.
Additional information: link
Function IDEXRouter.WETH() (#134) is not in mixedCase
Parameter DividendDistributor.setDistributionCriteria(uint256,uint256)._minPeriod (#238) is not in mixedCase
Parameter DividendDistributor.setDistributionCriteria(uint256,uint256)._minDistribution (#238) is not in mixedCase
Variable DividendDistributor._token (#190) is not in mixedCase
Variable DividendDistributor.Reward (#198) is not in mixedCase
Variable DividendDistributor.WBNB (#199) is not in mixedCase
Parameter WDO.cooldownEnabled(bool,uint8)._status (#556) is not in mixedCase
Parameter WDO.cooldownEnabled(bool,uint8)._interval (#556) is not in mixedCase
Parameter WDO.setFees(uint256,uint256,uint256,uint256,uint256)._liquidityFee (#639) is not in mixedCase
Parameter WDO.setFees(uint256,uint256,uint256,uint256,uint256)._reflectionFee (#639) is not in mixedCase
Parameter WDO.setFees(uint256,uint256,uint256,uint256,uint256)._charityFee (#639) is not in mixedCase
Parameter WDO.setFees(uint256,uint256,uint256,uint256,uint256)._burnFee (#639) is not in mixedCase
Parameter WDO.setFees(uint256,uint256,uint256,uint256,uint256)._feeDenominator (#639) is not in mixedCase
Parameter WDO.setFeeReceivers(address,address)._autoLiquidityReceiver (#649) is not in mixedCase
Parameter WDO.setFeeReceivers(address,address)._charityFeeReceiver (#649) is not in mixedCase
Parameter WDO.setSwapBackSettings(bool,uint256)._enabled (#654) is not in mixedCase
Parameter WDO.setSwapBackSettings(bool,uint256)._amount (#654) is not in mixedCase
Parameter WDO.setTargetLiquidity(uint256,uint256)._target (#659) is not in mixedCase
Parameter WDO.setTargetLiquidity(uint256,uint256)._denominator (#659) is not in mixedCase
Parameter WDO.setDistributionCriteria(uint256,uint256)._minPeriod (#664) is not in mixedCase
Parameter WDO.setDistributionCriteria(uint256,uint256)._minDistribution (#664) is not in mixedCase
Variable WDO.Reward (#357) is not in mixedCase
Variable WDO.WBNB (#358) is not in mixedCase
Variable WDO.DEAD (#359) is not in mixedCase
Variable WDO.ZERO (#360) is not in mixedCase
Constant WDO._name (#362) is not in UPPER_CASE_WITH_UNDERSCORES
Constant WDO._symbol (#363) is not in UPPER_CASE_WITH_UNDERSCORES
Constant WDO._decimals (#364) is not in UPPER_CASE_WITH_UNDERSCORES
Variable WDO._totalSupply (#366) is not in mixedCase
Variable WDO._maxTxAmount (#367) is not in mixedCase
Variable WDO._maxWalletToken (#369) is not in mixedCase
Variable WDO._balances (#371) is not in mixedCase
Variable WDO._allowances (#372) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#139) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#140)
Prevent variables from having similar names.
Additional information: link
WDO.slitherConstructorVariables() (#354-688) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#359)
WDO.slitherConstructorVariables() (#354-688) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#360)
WDO.slitherConstructorVariables() (#354-688) uses literals with too many digits:
- _totalSupply = 1000000000 * (10 ** _decimals) (#366)
WDO.slitherConstructorVariables() (#354-688) uses literals with too many digits:
- distributorGas = 500000 (#398)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
WDO.Reward (#357) is never used in WDO (#354-688)
Remove unused state variables.
Additional information: link
DividendDistributor.WBNB (#199) should be constant
DividendDistributor.dividendsPerShareAccuracyFactor (#212) should be constant
WDO.DEAD (#359) should be constant
WDO.Reward (#357) should be constant
WDO.WBNB (#358) should be constant
WDO.ZERO (#360) should be constant
WDO._totalSupply (#366) should be constant
WDO.launchedAt (#395) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
authorize(address) should be declared external:
- Auth.authorize(address) (#91-93)
unauthorize(address) should be declared external:
- Auth.unauthorize(address) (#98-100)
transferOwnership(address) should be declared external:
- Auth.transferOwnership(address) (#119-123)
cooldownEnabled(bool,uint8) should be declared external:
- WDO.cooldownEnabled(bool,uint8) (#556-559)
Use the external attribute for functions never called from the contract.
Additional information: link
DividendDistributor.shouldDistribute(address) (#305-308) uses timestamp for comparisons
Dangerous comparisons:
- shareholderClaims[shareholder] + minPeriod < block.timestamp && getUnpaidEarnings(shareholder) > minDistribution (#306-307)
WDO._transferFrom(address,address,uint256) (#473-517) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(cooldownTimer[recipient] < block.timestamp,Please wait for cooldown between buys) (#487)
Avoid relying on block.timestamp.
Additional information: link
DividendDistributor.process(uint256) (#279-303) has costly operations inside a loop:
- currentIndex = 0 (#291)
DividendDistributor.distributeDividend(address) (#310-321) has costly operations inside a loop:
- totalDistributed = totalDistributed.add(amount) (#315)
DividendDistributor.process(uint256) (#279-303) has costly operations inside a loop:
- currentIndex ++ (#300)
Use a local variable to hold the loop computation result.
Additional information: link
WDO._maxTxAmount (#367) is set pre-construction with a non-constant function or state variable:
- _totalSupply * 100 / 100
WDO._maxWalletToken (#369) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 100) / 100
WDO.swapThreshold (#406) is set pre-construction with a non-constant function or state variable:
- _totalSupply * 10 / 10000
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 version^0.7.4 (#2) allows old versions
solc-0.7.4 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 WDO.swapBack() (#563-610):
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Reentrancy in DividendDistributor.distributeDividend(address) (#310-321):
External calls:
- Reward.transfer(shareholder,amount) (#316)
State variables written after the call(s):
- shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount) (#318)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#319)
Reentrancy in DividendDistributor.process(uint256) (#279-303):
External calls:
- distributeDividend(shareholders[currentIndex]) (#295)
- Reward.transfer(shareholder,amount) (#316)
State variables written after the call(s):
- currentIndex ++ (#300)
Reentrancy in DividendDistributor.setShare(address,uint256) (#243-257):
External calls:
- distributeDividend(shareholder) (#245)
- Reward.transfer(shareholder,amount) (#316)
State variables written after the call(s):
- shares[shareholder].amount = amount (#255)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#256)
Apply the check-effects-interactions pattern.
Additional information: link
DividendDistributor.setDistributionCriteria(uint256,uint256) (#238-241) should emit an event for:
- minPeriod = _minPeriod (#239)
- minDistribution = _minDistribution (#240)
WDO.setTxLimit(uint256) (#613-615) should emit an event for:
- _maxTxAmount = amount (#614)
WDO.setFees(uint256,uint256,uint256,uint256,uint256) (#639-647) should emit an event for:
- liquidityFee = _liquidityFee (#640)
- reflectionFee = _reflectionFee (#641)
- charityFee = _charityFee (#642)
- burnFee = _burnFee (#643)
- totalFee = _liquidityFee.add(_reflectionFee).add(_charityFee).add(_burnFee) (#644)
- feeDenominator = _feeDenominator (#645)
WDO.setSwapBackSettings(bool,uint256) (#654-657) should emit an event for:
- swapThreshold = _amount (#656)
WDO.setTargetLiquidity(uint256,uint256) (#659-662) should emit an event for:
- targetLiquidity = _target (#660)
- targetLiquidityDenominator = _denominator (#661)
Emit an event for critical parameter changes.
Additional information: link
Auth.transferOwnership(address).adr (#119) lacks a zero-check on :
- owner = adr (#120)
WDO.setFeeReceivers(address,address)._autoLiquidityReceiver (#649) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (#650)
WDO.setFeeReceivers(address,address)._charityFeeReceiver (#649) lacks a zero-check on :
- charityFeeReceiver = _charityFeeReceiver (#651)
Check that the address is not zero.
Additional information: link
Reentrancy in WDO.constructor() (#410-434):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#412)
State variables written after the call(s):
- _allowances[address(this)][address(router)] = uint256(- 1) (#413)
- _balances[msg.sender] = _totalSupply (#432)
- autoLiquidityReceiver = DEAD (#429)
- charityFeeReceiver = msg.sender (#430)
- distributor = new DividendDistributor(address(router)) (#415)
- isDividendExempt[pair] = true (#425)
- isDividendExempt[address(this)] = true (#426)
- isDividendExempt[DEAD] = true (#427)
- isFeeExempt[msg.sender] = true (#417)
- isTimelockExempt[msg.sender] = true (#421)
- isTimelockExempt[DEAD] = true (#422)
- isTimelockExempt[address(this)] = true (#423)
- isTxLimitExempt[msg.sender] = true (#418)
Reentrancy in DividendDistributor.deposit() (#259-277):
External calls:
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: msg.value}(0,path,address(this),block.timestamp) (#266-271)
State variables written after the call(s):
- dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares)) (#276)
- totalDividends = totalDividends.add(amount) (#275)
Reentrancy in DividendDistributor.distributeDividend(address) (#310-321):
External calls:
- Reward.transfer(shareholder,amount) (#316)
State variables written after the call(s):
- shareholderClaims[shareholder] = block.timestamp (#317)
Reentrancy in DividendDistributor.setShare(address,uint256) (#243-257):
External calls:
- distributeDividend(shareholder) (#245)
- Reward.transfer(shareholder,amount) (#316)
State variables written after the call(s):
- addShareholder(shareholder) (#249)
- shareholderIndexes[shareholder] = shareholders.length (#343)
- removeShareholder(shareholder) (#251)
- shareholderIndexes[shareholders[shareholders.length - 1]] = shareholderIndexes[shareholder] (#349)
- addShareholder(shareholder) (#249)
- shareholders.push(shareholder) (#344)
- removeShareholder(shareholder) (#251)
- shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length - 1] (#348)
- shareholders.pop() (#350)
- totalShares = totalShares.sub(shares[shareholder].amount).add(amount) (#254)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in WDO._transferFrom(address,address,uint256) (#473-517):
External calls:
- swapBack() (#496)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#574-580)
- distributor.deposit{value: amountBNBReflection}() (#592)
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
- distributor.setShare(sender,_balances[sender]) (#506)
- distributor.setShare(recipient,_balances[recipient]) (#510)
- distributor.process(distributorGas) (#513)
External calls sending eth:
- swapBack() (#496)
- distributor.deposit{value: amountBNBReflection}() (#592)
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
Event emitted after the call(s):
- Transfer(sender,recipient,amountReceived) (#515)
Reentrancy in WDO._transferFrom(address,address,uint256) (#473-517):
External calls:
- swapBack() (#496)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#574-580)
- distributor.deposit{value: amountBNBReflection}() (#592)
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
External calls sending eth:
- swapBack() (#496)
- distributor.deposit{value: amountBNBReflection}() (#592)
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#538)
- amountReceived = takeFee(sender,amount) (#501)
Reentrancy in WDO.constructor() (#410-434):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#412)
Event emitted after the call(s):
- Transfer(address(0),msg.sender,_totalSupply) (#433)
Reentrancy in WDO.swapBack() (#563-610):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#574-580)
- distributor.deposit{value: amountBNBReflection}() (#592)
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
External calls sending eth:
- distributor.deposit{value: amountBNBReflection}() (#592)
- (tmpSuccess) = address(charityFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#593)
- (tmpSuccess2) = address(DEAD).call{gas: 30000,value: amountBNBburn}() (#594)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#600-607)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#608)
Apply the check-effects-interactions pattern.
Additional information: link
Swap operations require suspiciously high gas. Contract logic is complex and may disguise some form of scam.
Average 30d number of PancakeSwap swaps is low.
Number of Binance Smart Chain (BSC) token holders is low.
Token is deployed only at one blockchain
Token has only one trading pair
Contract has 6% buy tax and 6% sell tax.
Taxes are low and contract ownership is renounced.
Alexa traffic rank is very low
Additional information: link
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 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
Price for Watch DO
LASER DESK beta
Telegram account has relatively few subscribers
Last post in Twitter was more than 30 days ago
Unable to find Blog account (Reddit or Medium)
Unable to find Discord account