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UMBP [UmbrellaProtocol] Token

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Umbrella Protocol(UMBP) is the first security protocol based on Oracle to protect blockchain investment. UMBP builds a safety kit through three methods: Multi-indicators evaluation, Regression Fitting and Risk Assessment. UMBP encourages development, inclusive and open-source safe community development ideas.

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Laser Scorebeta Last Audit: 14 May 2022

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Code:

Third Party Audit: untrusted audit

UmbrellaProtocol.swapBNBForUSDT(uint256) (#1947-1962) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
UmbrellaProtocol.addLiquidity(uint256,uint256) (#1998-2011) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924):
External calls:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapTokensForEth(tokenAmountForBNB) (#1874)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapAndSendDividends(sellTokens) (#1890)
- success = IERC20(USDT).transfer(address(dividendTracker),dividends) (#1967)
- dividendTracker.distributeUSDTDividends(dividends) (#1970)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
External calls sending eth:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- address(_DevWalletAddress).transfer(BNBAmountForApp) (#1885)
- address(_FoudWalletAddress).transfer(BNBAmountForFoud) (#1886)
- swapAndSendDividends(sellTokens) (#1890)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
State variables written after the call(s):
- super._transfer(from,address(this),fees_scope_0) (#1906)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#522)
- _balances[recipient] = _balances[recipient].add(amount) (#523)
- super._transfer(from,to,amount) (#1909)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#522)
- _balances[recipient] = _balances[recipient].add(amount) (#523)
- swapping = false (#1893)
Apply the check-effects-interactions pattern.

Additional information: link


Contract ownership is not renounced (belongs to a wallet)


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.

Reentrancy in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924):
External calls:
- address(_DevWalletAddress).transfer(BNBAmountForApp) (#1885)
- address(_FoudWalletAddress).transfer(BNBAmountForFoud) (#1886)
External calls sending eth:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- address(_DevWalletAddress).transfer(BNBAmountForApp) (#1885)
- address(_FoudWalletAddress).transfer(BNBAmountForFoud) (#1886)
- swapAndSendDividends(sellTokens) (#1890)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
State variables written after the call(s):
- swapAndSendDividends(sellTokens) (#1890)
- _allowances[owner][spender] = amount (#588)
- super._transfer(from,address(this),fees_scope_0) (#1906)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#522)
- _balances[recipient] = _balances[recipient].add(amount) (#523)
- super._transfer(from,to,amount) (#1909)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#522)
- _balances[recipient] = _balances[recipient].add(amount) (#523)
- swapping = false (#1893)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#589)
- swapAndSendDividends(sellTokens) (#1890)
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1918)
- SendDividends(tokens,dividends) (#1971)
- swapAndSendDividends(sellTokens) (#1890)
- Transfer(sender,recipient,amount) (#524)
- super._transfer(from,address(this),fees_scope_0) (#1906)
- Transfer(sender,recipient,amount) (#524)
- super._transfer(from,to,amount) (#1909)
Apply the check-effects-interactions pattern.

Additional information: link

SafeMathInt.MAX_INT256 (#931) is never used in SafeMathInt (#929-987)
Remove unused state variables.

Additional information: link

Reentrancy in DividendPayingToken._withdrawDividendOfUser(address) (#1058-1074):
External calls:
- success = IERC20(USDT).transfer(user,_withdrawableDividend) (#1063)
State variables written after the call(s):
- withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend) (#1066)
Reentrancy in UmbrellaProtocol.updateDividendTracker(address) (#1634-1649):
External calls:
- newDividendTracker.excludeFromDividends(address(newDividendTracker)) (#1641)
- newDividendTracker.excludeFromDividends(address(this)) (#1642)
- newDividendTracker.excludeFromDividends(owner()) (#1643)
- newDividendTracker.excludeFromDividends(address(uniswapV2Router)) (#1644)
State variables written after the call(s):
- dividendTracker = newDividendTracker (#1648)
Apply the check-effects-interactions pattern.

Additional information: link

UmbrellaProtocol._transfer(address,address,uint256).iterations (#1917) is a local variable never initialized
UmbrellaProtocol._transfer(address,address,uint256).claims (#1917) is a local variable never initialized
UmbrellaProtocol._transfer(address,address,uint256).lastProcessedIndex (#1917) 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

UmbrellaProtocol.claim() (#1799-1801) ignores return value by dividendTracker.processAccount(msg.sender,false) (#1800)
UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924) ignores return value by dividendTracker.process(gas) (#1917-1922)
UmbrellaProtocol.addLiquidity(uint256,uint256) (#1998-2011) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
Ensure that all the return values of the function calls are used.

Additional information: link

DividendPayingToken.constructor(string,string)._name (#1032) shadows:
- ERC20._name (#344) (state variable)
DividendPayingToken.constructor(string,string)._symbol (#1032) shadows:
- ERC20._symbol (#345) (state variable)
DividendPayingToken.dividendOf(address)._owner (#1079) shadows:
- Ownable._owner (#622) (state variable)
DividendPayingToken.withdrawableDividendOf(address)._owner (#1086) shadows:
- Ownable._owner (#622) (state variable)
DividendPayingToken.withdrawnDividendOf(address)._owner (#1093) shadows:
- Ownable._owner (#622) (state variable)
DividendPayingToken.accumulativeDividendOf(address)._owner (#1103) shadows:
- Ownable._owner (#622) (state variable)
Rename the local variables that shadow another component.

Additional information: link

UmbrellaProtocol.setFee(uint256,uint256,uint256) (#1688-1696) should emit an event for:
- USDTRewardsFee = _USDTRewardsFee (#1693)
- USDTRewardsShare = _USDTRewardsShare (#1694)
- LPShare = _LPShare (#1695)
UmbrellaProtocol.setSnipeBlocks(uint8) (#1811-1814) should emit an event for:
- snipeBlocks = _blocks (#1813)
Emit an event for critical parameter changes.

Additional information: link

UmbrellaProtocol.updateUniswapV2Router(address)._uniswapV2Pair (#1655-1656) lacks a zero-check on :
- uniswapV2Pair = _uniswapV2Pair (#1657)
UmbrellaProtocol.setDevWallet(address).wallet (#1675) lacks a zero-check on :
- _DevWalletAddress = wallet (#1676)
UmbrellaProtocol.setPresaleContract(address).wallet (#1679) lacks a zero-check on :
- _PresaleAddress = wallet (#1680)
UmbrellaProtocol.setFoudWalletAddress(address).wallet (#1684) lacks a zero-check on :
- _FoudWalletAddress = wallet (#1685)
UmbrellaProtocol.rescueBNB(address)._recipient (#1716) lacks a zero-check on :
- _recipient.transfer(address(this).balance) (#1717)
Check that the address is not zero.

Additional information: link

DividendPayingToken._withdrawDividendOfUser(address) (#1058-1074) has external calls inside a loop: success = IERC20(USDT).transfer(user,_withdrawableDividend) (#1063)
Favor pull over push strategy for external calls.

Additional information: link

Variable 'UmbrellaProtocol._transfer(address,address,uint256).iterations (#1917)' in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1918)
Variable 'UmbrellaProtocol._transfer(address,address,uint256).lastProcessedIndex (#1917)' in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1918)
Variable 'UmbrellaProtocol._transfer(address,address,uint256).claims (#1917)' in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1918)
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

Reentrancy in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924):
External calls:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapTokensForEth(tokenAmountForBNB) (#1874)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
External calls sending eth:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
State variables written after the call(s):
- swapTokensForEth(tokenAmountForBNB) (#1874)
- _allowances[owner][spender] = amount (#588)
Reentrancy in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924):
External calls:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapTokensForEth(tokenAmountForBNB) (#1874)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapAndSendDividends(sellTokens) (#1890)
- success = IERC20(USDT).transfer(address(dividendTracker),dividends) (#1967)
- dividendTracker.distributeUSDTDividends(dividends) (#1970)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
External calls sending eth:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- address(_DevWalletAddress).transfer(BNBAmountForApp) (#1885)
- address(_FoudWalletAddress).transfer(BNBAmountForFoud) (#1886)
- swapAndSendDividends(sellTokens) (#1890)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
State variables written after the call(s):
- swapAndSendDividends(sellTokens) (#1890)
- _allowances[owner][spender] = amount (#588)
Reentrancy in UmbrellaProtocol.constructor() (#1595-1630):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1602-1603)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (#1606)
- uniswapV2Router = _uniswapV2Router (#1605)
Reentrancy in UmbrellaProtocol.constructor() (#1595-1630):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1602-1603)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1608)
- dividendTracker.excludeFromDividends(pair) (#1726)
State variables written after the call(s):
- swapTokensAtAmount = totalSupply_.mul(2).div(10 ** 6) (#1610)
Reentrancy in UmbrellaProtocol.constructor() (#1595-1630):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1602-1603)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1608)
- dividendTracker.excludeFromDividends(pair) (#1726)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (#1613)
- dividendTracker.excludeFromDividends(address(this)) (#1614)
- dividendTracker.excludeFromDividends(owner()) (#1615)
- dividendTracker.excludeFromDividends(deadWallet) (#1616)
- dividendTracker.excludeFromDividends(address(_uniswapV2Router)) (#1617)
State variables written after the call(s):
- _mint(owner(),totalSupply_) (#1629)
- _balances[account] = _balances[account].add(amount) (#542)
- excludeFromFees(owner(),true) (#1620)
- _isExcludedFromFees[account] = excluded (#1662)
- excludeFromFees(_DevWalletAddress,true) (#1621)
- _isExcludedFromFees[account] = excluded (#1662)
- excludeFromFees(_FoudWalletAddress,true) (#1622)
- _isExcludedFromFees[account] = excluded (#1662)
- excludeFromFees(address(this),true) (#1623)
- _isExcludedFromFees[account] = excluded (#1662)
- _mint(owner(),totalSupply_) (#1629)
- _totalSupply = _totalSupply.add(amount) (#541)
Reentrancy in USDTDividendTracker.processAccount(address,bool) (#1429-1439):
External calls:
- amount = _withdrawDividendOfUser(account) (#1430)
- success = IERC20(USDT).transfer(user,_withdrawableDividend) (#1063)
State variables written after the call(s):
- lastClaimTimes[account] = block.timestamp (#1433)
Reentrancy in UmbrellaProtocol.swapAndLiquify(uint256) (#1975-1996):
External calls:
- swapTokensForEth(half) (#1987)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- addLiquidity(otherHalf,newBalance) (#1993)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1993)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1993)
- _allowances[owner][spender] = amount (#588)
Reentrancy in UmbrellaProtocol.updateUniswapV2Router(address) (#1651-1658):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this),uniswapV2Router.WETH()) (#1655-1656)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (#1657)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in UmbrellaProtocol._setAutomatedMarketMakerPair(address,bool) (#1721-1730):
External calls:
- dividendTracker.excludeFromDividends(pair) (#1726)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (#1729)
Reentrancy in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924):
External calls:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapTokensForEth(tokenAmountForBNB) (#1874)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
External calls sending eth:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#589)
- swapTokensForEth(tokenAmountForBNB) (#1874)
Reentrancy in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924):
External calls:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapTokensForEth(tokenAmountForBNB) (#1874)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapAndSendDividends(sellTokens) (#1890)
- success = IERC20(USDT).transfer(address(dividendTracker),dividends) (#1967)
- dividendTracker.distributeUSDTDividends(dividends) (#1970)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
External calls sending eth:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- address(_DevWalletAddress).transfer(BNBAmountForApp) (#1885)
- address(_FoudWalletAddress).transfer(BNBAmountForFoud) (#1886)
- swapAndSendDividends(sellTokens) (#1890)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#589)
- swapAndSendDividends(sellTokens) (#1890)
- SendDividends(tokens,dividends) (#1971)
- swapAndSendDividends(sellTokens) (#1890)
- Transfer(sender,recipient,amount) (#524)
- super._transfer(from,address(this),fees_scope_0) (#1906)
- Transfer(sender,recipient,amount) (#524)
- super._transfer(from,to,amount) (#1909)
Reentrancy in UmbrellaProtocol._transfer(address,address,uint256) (#1816-1924):
External calls:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapTokensForEth(tokenAmountForBNB) (#1874)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- swapAndSendDividends(sellTokens) (#1890)
- success = IERC20(USDT).transfer(address(dividendTracker),dividends) (#1967)
- dividendTracker.distributeUSDTDividends(dividends) (#1970)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
- dividendTracker.setBalance(address(from),balanceOf(from)) (#1911)
- dividendTracker.setBalance(address(to),balanceOf(to)) (#1912)
- dividendTracker.process(gas) (#1917-1922)
External calls sending eth:
- swapAndLiquify(tokenAmountForLP) (#1873)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
- address(_DevWalletAddress).transfer(BNBAmountForApp) (#1885)
- address(_FoudWalletAddress).transfer(BNBAmountForFoud) (#1886)
- swapAndSendDividends(sellTokens) (#1890)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1918)
Reentrancy in UmbrellaProtocol.constructor() (#1595-1630):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1602-1603)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1608)
- dividendTracker.excludeFromDividends(pair) (#1726)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (#1729)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1608)
Reentrancy in UmbrellaProtocol.constructor() (#1595-1630):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1602-1603)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1608)
- dividendTracker.excludeFromDividends(pair) (#1726)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (#1613)
- dividendTracker.excludeFromDividends(address(this)) (#1614)
- dividendTracker.excludeFromDividends(owner()) (#1615)
- dividendTracker.excludeFromDividends(deadWallet) (#1616)
- dividendTracker.excludeFromDividends(address(_uniswapV2Router)) (#1617)
Event emitted after the call(s):
- ExcludeFromFees(account,excluded) (#1664)
- excludeFromFees(_DevWalletAddress,true) (#1621)
- ExcludeFromFees(account,excluded) (#1664)
- excludeFromFees(address(this),true) (#1623)
- ExcludeFromFees(account,excluded) (#1664)
- excludeFromFees(_FoudWalletAddress,true) (#1622)
- ExcludeFromFees(account,excluded) (#1664)
- excludeFromFees(owner(),true) (#1620)
- Transfer(address(0),account,amount) (#543)
- _mint(owner(),totalSupply_) (#1629)
Reentrancy in USDTDividendTracker.processAccount(address,bool) (#1429-1439):
External calls:
- amount = _withdrawDividendOfUser(account) (#1430)
- success = IERC20(USDT).transfer(user,_withdrawableDividend) (#1063)
Event emitted after the call(s):
- Claim(account,amount,automatic) (#1434)
Reentrancy in UmbrellaProtocol.processDividendTracker(uint256) (#1794-1797):
External calls:
- (iterations,claims,lastProcessedIndex) = dividendTracker.process(gas) (#1795)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,false,gas,tx.origin) (#1796)
Reentrancy in UmbrellaProtocol.swapAndLiquify(uint256) (#1975-1996):
External calls:
- swapTokensForEth(half) (#1987)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1937-1943)
- addLiquidity(otherHalf,newBalance) (#1993)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1993)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#2003-2010)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#589)
- addLiquidity(otherHalf,newBalance) (#1993)
- SwapAndLiquify(half,newBalance,otherHalf) (#1995)
Reentrancy in UmbrellaProtocol.swapAndSendDividends(uint256) (#1964-1973):
External calls:
- swapBNBForUSDT(tokens) (#1965)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
- success = IERC20(USDT).transfer(address(dividendTracker),dividends) (#1967)
- dividendTracker.distributeUSDTDividends(dividends) (#1970)
External calls sending eth:
- swapBNBForUSDT(tokens) (#1965)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: tokenAmount}(0,path,address(this),block.timestamp) (#1956-1961)
Event emitted after the call(s):
- SendDividends(tokens,dividends) (#1971)
Reentrancy in UmbrellaProtocol.updateDividendTracker(address) (#1634-1649):
External calls:
- newDividendTracker.excludeFromDividends(address(newDividendTracker)) (#1641)
- newDividendTracker.excludeFromDividends(address(this)) (#1642)
- newDividendTracker.excludeFromDividends(owner()) (#1643)
- newDividendTracker.excludeFromDividends(address(uniswapV2Router)) (#1644)
Event emitted after the call(s):
- UpdateDividendTracker(newAddress,address(dividendTracker)) (#1646)
Apply the check-effects-interactions pattern.

Additional information: link

USDTDividendTracker.getAccount(address) (#1292-1336) uses timestamp for comparisons
Dangerous comparisons:
- nextClaimTime > block.timestamp (#1333-1335)
USDTDividendTracker.canAutoClaim(uint256) (#1357-1363) uses timestamp for comparisons
Dangerous comparisons:
- lastClaimTime > block.timestamp (#1358)
- block.timestamp.sub(lastClaimTime) >= claimWait (#1362)
Avoid relying on block.timestamp.

Additional information: link

Context._msgData() (#115-118) is never used and should be removed
DividendPayingToken._transfer(address,address,uint256) (#1113-1119) is never used and should be removed
SafeMath.mod(uint256,uint256) (#281-283) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#297-300) is never used and should be removed
SafeMathInt.abs(int256) (#977-980) is never used and should be removed
SafeMathInt.div(int256,int256) (#948-954) is never used and should be removed
SafeMathInt.mul(int256,int256) (#936-943) is never used and should be removed
Remove unused functions.

Additional information: link

Function IUniswapV2Router01.WETH() (#683) is not in mixedCase
Parameter DividendPayingToken.dividendOf(address)._owner (#1079) is not in mixedCase
Parameter DividendPayingToken.withdrawableDividendOf(address)._owner (#1086) is not in mixedCase
Parameter DividendPayingToken.withdrawnDividendOf(address)._owner (#1093) is not in mixedCase
Parameter DividendPayingToken.accumulativeDividendOf(address)._owner (#1103) is not in mixedCase
Variable DividendPayingToken.USDT (#1007) is not in mixedCase
Constant DividendPayingToken.magnitude (#1012) is not in UPPER_CASE_WITH_UNDERSCORES
Parameter USDTDividendTracker.getAccount(address)._account (#1292) is not in mixedCase
Parameter UmbrellaProtocol.setFee(uint256,uint256,uint256)._USDTRewardsFee (#1689) is not in mixedCase
Parameter UmbrellaProtocol.setFee(uint256,uint256,uint256)._USDTRewardsShare (#1690) is not in mixedCase
Parameter UmbrellaProtocol.setFee(uint256,uint256,uint256)._LPShare (#1691) is not in mixedCase
Parameter UmbrellaProtocol.rescueBNB(address)._recipient (#1716) is not in mixedCase
Parameter UmbrellaProtocol.setSnipeBlocks(uint8)._blocks (#1811) is not in mixedCase
Variable UmbrellaProtocol._DevWalletAddress (#1529) is not in mixedCase
Variable UmbrellaProtocol._FoudWalletAddress (#1530) is not in mixedCase
Variable UmbrellaProtocol.USDT (#1532) is not in mixedCase
Variable UmbrellaProtocol._isBlacklisted (#1538) is not in mixedCase
Variable UmbrellaProtocol.USDTRewardsFee (#1540) is not in mixedCase
Variable UmbrellaProtocol.USDTRewardsShare (#1541) is not in mixedCase
Variable UmbrellaProtocol.LPShare (#1542) is not in mixedCase
Variable UmbrellaProtocol._PresaleAddress (#1545) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#116)" inContext (#110-119)
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 (#688) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#689)
Variable DividendPayingToken._withdrawDividendOfUser(address)._withdrawableDividend (#1059) is too similar to USDTDividendTracker.getAccount(address).withdrawableDividends (#1297)
Variable ERC20._totalSupply (#342) is too similar to UmbrellaProtocol.totalSupply_ (#1534)
Prevent variables from having similar names.

Additional information: link

USDTDividendTracker.getAccountAtIndex(uint256) (#1338-1355) uses literals with too many digits:
- (0x0000000000000000000000000000000000000000,- 1,- 1,0,0,0,0,0) (#1349)
UmbrellaProtocol.updateGasForProcessing(uint256) (#1733-1738) uses literals with too many digits:
- require(bool,string)(newValue >= 200000 && newValue <= 500000,USDT: gasForProcessing must be between 200,000 and 500,000) (#1734)
UmbrellaProtocol.slitherConstructorVariables() (#1518-2014) uses literals with too many digits:
- deadWallet = 0x000000000000000000000000000000000000dEaD (#1528)
UmbrellaProtocol.slitherConstructorVariables() (#1518-2014) uses literals with too many digits:
- _PresaleAddress = 0x000000000000000000000000000000000000dEaD (#1545)
UmbrellaProtocol.slitherConstructorVariables() (#1518-2014) uses literals with too many digits:
- gasForProcessing = 300000 (#1552)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

UmbrellaProtocol.deadWallet (#1528) should be constant
UmbrellaProtocol.totalSupply_ (#1534) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

name() should be declared external:
- ERC20.name() (#364-366)
symbol() should be declared external:
- ERC20.symbol() (#372-374)
decimals() should be declared external:
- ERC20.decimals() (#389-391)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#415-418)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#423-425)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#434-437)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#452-460)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#474-477)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#493-496)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#657-660)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#666-670)
distributeUSDTDividends(uint256) should be declared external:
- DividendPayingToken.distributeUSDTDividends(uint256) (#1037-1048)
withdrawDividend() should be declared external:
- DividendPayingToken.withdrawDividend() (#1052-1054)
- USDTDividendTracker.withdrawDividend() (#1263-1265)
dividendOf(address) should be declared external:
- DividendPayingToken.dividendOf(address) (#1079-1081)
withdrawnDividendOf(address) should be declared external:
- DividendPayingToken.withdrawnDividendOf(address) (#1093-1095)
get(IterableMapping.Map,address) should be declared external:
- IterableMapping.get(IterableMapping.Map,address) (#1174-1176)
getIndexOfKey(IterableMapping.Map,address) should be declared external:
- IterableMapping.getIndexOfKey(IterableMapping.Map,address) (#1178-1183)
getKeyAtIndex(IterableMapping.Map,uint256) should be declared external:
- IterableMapping.getKeyAtIndex(IterableMapping.Map,uint256) (#1185-1187)
size(IterableMapping.Map) should be declared external:
- IterableMapping.size(IterableMapping.Map) (#1191-1193)
getAccountAtIndex(uint256) should be declared external:
- USDTDividendTracker.getAccountAtIndex(uint256) (#1338-1355)
process(uint256) should be declared external:
- USDTDividendTracker.process(uint256) (#1382-1427)
updateDividendTracker(address) should be declared external:
- UmbrellaProtocol.updateDividendTracker(address) (#1634-1649)
updateUniswapV2Router(address) should be declared external:
- UmbrellaProtocol.updateUniswapV2Router(address) (#1651-1658)
excludeMultipleAccountsFromFees(address[],bool) should be declared external:
- UmbrellaProtocol.excludeMultipleAccountsFromFees(address[],bool) (#1667-1673)
setFee(uint256,uint256,uint256) should be declared external:
- UmbrellaProtocol.setFee(uint256,uint256,uint256) (#1688-1696)
setAutomatedMarketMakerPair(address,bool) should be declared external:
- UmbrellaProtocol.setAutomatedMarketMakerPair(address,bool) (#1698-1702)
rescueToken(address,uint256) should be declared external:
- UmbrellaProtocol.rescueToken(address,uint256) (#1708-1714)
rescueBNB(address) should be declared external:
- UmbrellaProtocol.rescueBNB(address) (#1716-1718)
updateGasForProcessing(uint256) should be declared external:
- UmbrellaProtocol.updateGasForProcessing(uint256) (#1733-1738)
isExcludedFromFees(address) should be declared external:
- UmbrellaProtocol.isExcludedFromFees(address) (#1752-1754)
withdrawableDividendOf(address) should be declared external:
- UmbrellaProtocol.withdrawableDividendOf(address) (#1756-1758)
dividendTokenBalanceOf(address) should be declared external:
- UmbrellaProtocol.dividendTokenBalanceOf(address) (#1760-1762)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


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.


Telegram account link seems to be invalid


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


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Twitter account has few posts

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

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Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)


Unable to verify token contract address on the website


Unable to find audit link on the website


Unable to find token on CoinGecko

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Unable to find token on CoinMarketCap

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Token is not listed at Mobula.Finance

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Unable to find token on CoinHunt

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


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


Token has no active CoinGecko listing / rank


Token has no active CoinMarketCap listing / rank

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