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GRM [GreenMoon] Token

About GRM

Listings

Token 18 months
CoinMarketCap 18 months
white paper

GREEN MOON adopts a flexible money supply method, using negative rebases to reduce the total supply of money, so as to increase the market value of each currency over time. This means that the total amount of GREENMOON currency in your wallet will decrease over time, but the market value of each currency will increase.

Social

Laser Scorebeta Last Audit: 30 November 2021

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Token is either risky or in presale. For presale 30+ is a fine score.

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

GRM.addLiquidity(uint256,uint256) (#972-986) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in GRM._transfer(address,address,uint256) (#814-849):
External calls:
- swapAndLiquify(numTokensSell) (#836)
- uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp.add(300)) (#946-952)
- buyBackTokens(buybackLimit.div(buybackDivisor)) (#842)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens.value(amount)(0,path,deadAddress,block.timestamp.add(300)) (#963-968)
External calls sending eth:
- swapAndLiquify(numTokensSell) (#836)
- recipient.transfer(amount) (#932)
- uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
- buyBackTokens(buybackLimit.div(buybackDivisor)) (#842)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens.value(amount)(0,path,deadAddress,block.timestamp.add(300)) (#963-968)
State variables written after the call(s):
- _tokenTransfer(from,to,value) (#846)
- _gonBalances[address(this)] = _gonBalances[address(this)].add(rFee) (#891)
- _gonBalances[sender] = _gonBalances[sender].sub(gonValue) (#872)
- _gonBalances[recipient] = _gonBalances[recipient].add(gonValue) (#873)
- _gonBalances[sender] = _gonBalances[sender].sub(gonDeduct) (#864)
- _gonBalances[recipient] = _gonBalances[recipient].add(gonValue) (#865)
- buyBackTokens(buybackLimit.div(buybackDivisor)) (#842)
- inSwapAndLiquify = true (#633)
- inSwapAndLiquify = false (#635)
Apply the check-effects-interactions pattern.

Additional information: link

GRM.burnAutoLP() (#1093-1099) ignores return value by uniswapV2Pair.transfer(address(deadBurn),balance) (#1098)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

Ownable._lockTime (#265) is never initialized. It is used in:
- Ownable.getUnlockTime() (#316-318)
- Ownable.unlock() (#329-334)
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


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.

GRM.addLiquidity(uint256,uint256) (#972-986) ignores return value by uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
Ensure that all the return values of the function calls are used.

Additional information: link

GRM._approve(address,address,uint256).owner (#1007) shadows:
- Ownable.owner() (#286-288) (function)
Rename the local variables that shadow another component.

Additional information: link

GRM.setdeadBurn(address) (#733-738) should emit an event for:
- deadBurn = _deadBurn (#737)
Emit an event for critical parameter changes.

Additional information: link

GRM.settransactionTax(uint256) (#1126-1127) should emit an event for:
- transactionTax = _transactionTax (#1127)
Emit an event for critical parameter changes.

Additional information: link

GRM.burnBNB(address).burnAddress (#1129) lacks a zero-check on :
- burnAddress.transfer(address(this).balance) (#1130)
Check that the address is not zero.

Additional information: link

Reentrancy in GRM.transferFrom(address,address,uint256) (#798-806):
External calls:
- _transfer(sender,recipient,amount) (#803)
- uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens.value(amount)(0,path,deadAddress,block.timestamp.add(300)) (#963-968)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp.add(300)) (#946-952)
External calls sending eth:
- _transfer(sender,recipient,amount) (#803)
- recipient.transfer(amount) (#932)
- uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens.value(amount)(0,path,deadAddress,block.timestamp.add(300)) (#963-968)
State variables written after the call(s):
- _approve(sender,msg.sender,_allowedFragments[sender][msg.sender].sub(amount)) (#804)
- _allowedFragments[owner][spender] = value (#1011)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in GRM.transferFrom(address,address,uint256) (#798-806):
External calls:
- _transfer(sender,recipient,amount) (#803)
- uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens.value(amount)(0,path,deadAddress,block.timestamp.add(300)) (#963-968)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp.add(300)) (#946-952)
External calls sending eth:
- _transfer(sender,recipient,amount) (#803)
- recipient.transfer(amount) (#932)
- uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens.value(amount)(0,path,deadAddress,block.timestamp.add(300)) (#963-968)
Event emitted after the call(s):
- Approval(owner,spender,value) (#1012)
- _approve(sender,msg.sender,_allowedFragments[sender][msg.sender].sub(amount)) (#804)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#329-334) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#331)
Avoid relying on block.timestamp.

Additional information: link

SafeMathInt.sub(int256,int256) (#465-473) is never used and should be removed
Remove unused functions.

Additional information: link

Parameter GRM.settransactionTax(uint256)._transactionTax (#1126) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Reentrancy in GRM.transferFrom(address,address,uint256) (#798-806):
External calls:
- _transfer(sender,recipient,amount) (#803)
- recipient.transfer(amount) (#932)
External calls sending eth:
- _transfer(sender,recipient,amount) (#803)
- recipient.transfer(amount) (#932)
- uniswapV2Router.addLiquidityETH.value(ethAmount)(address(this),tokenAmount,0,0,address(this),block.timestamp.add(300)) (#978-985)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens.value(amount)(0,path,deadAddress,block.timestamp.add(300)) (#963-968)
State variables written after the call(s):
- _approve(sender,msg.sender,_allowedFragments[sender][msg.sender].sub(amount)) (#804)
- _allowedFragments[owner][spender] = value (#1011)
Event emitted after the call(s):
- Approval(owner,spender,value) (#1012)
- _approve(sender,msg.sender,_allowedFragments[sender][msg.sender].sub(amount)) (#804)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router02.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#129) is too similar to IUniswapV2Router02.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#130)
Prevent variables from having similar names.

Additional information: link

GRM.slitherConstructorVariables() (#556-1134) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (#620)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

GRM.privateSaleDropCompleted (#630) is never used in GRM (#556-1134)
Remove unused state variables.

Additional information: link

Ownable._lockTime (#265) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

settransactionTax(uint256) should be declared external:
- GRM.settransactionTax(uint256) (#1126-1127)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


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


Token is deployed only at one blockchain


Token has only one trading pair


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute volume.


Unable to find PancakeSwap trading pair to compute number of swaps.


Twitter account link seems to be invalid


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


Unable to find Discord account


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 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


Token has no active CoinMarketCap listing / rank


Token has relatively low CoinGecko rank

Price for GRM