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GMT [GemLook Finance] Token

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Token 7 months

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GemLook a new gem deflationary BSC token.
8% fee applies to all transactions. 5% of them is used for development and 3% is for liquidity funding.
🔒 Ownership Renounced,
✅ Community owned = SAFU
✴️ Deflationary
⭕ 100x opportunity!
✅Anti-whale

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Laser Scorebeta Last Audit: 30 November 2021

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Token has too many issues. Scam probability is high.

Anti-Scam

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Reentrancy in GemlookFinance.transferFrom(address,address,uint256) (#234-240):
External calls:
- _transfer(sender,recipient,amount) (#237)
- _uniswapV2Router.addLiquidityETH{value: amount}(address(this),tokenAmount,0,0,address(this),block.timestamp + 1200) (#191)
- _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,receiver,block.timestamp + 1200) (#199)
External calls sending eth:
- _transfer(sender,recipient,amount) (#237)
- _uniswapV2Router.addLiquidityETH{value: amount}(address(this),tokenAmount,0,0,address(this),block.timestamp + 1200) (#191)
State variables written after the call(s):
- _approve(sender,msg.sender,currentAllowance - amount) (#238)
- _allowances[owner][spender] = amount (#225)
Apply the check-effects-interactions pattern.

Additional information: link

GemlookFinance.withdrawToken(address,uint256) (#280-283) ignores return value by _tokenContract.transfer(msg.sender,amount) (#282)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link


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


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.

GemlookFinance.swapAddLiquidity() (#202-220) performs a multiplication on the result of a division:
-devAmount = tokenBalance / (devFee + liquidityFee) * devFee (#207)
Consider ordering multiplication before division.

Additional information: link

GemlookFinance.addLiquidity(uint256,uint256) (#189-192) ignores return value by _uniswapV2Router.addLiquidityETH{value: amount}(address(this),tokenAmount,0,0,address(this),block.timestamp + 1200) (#191)
Ensure that all the return values of the function calls are used.

Additional information: link

GemlookFinance.setFees(uint8,uint8) (#108-111) should emit an event for:
- devFee = _devFee (#109)
- liquidityFee = _liquidityFee (#110)
Emit an event for critical parameter changes.

Additional information: link

GemlookFinance.setAddresses(address)._devWallet (#98) lacks a zero-check on :
- devWallet = _devWallet (#99)
Check that the address is not zero.

Additional information: link

Reentrancy in GemlookFinance.swapAddLiquidity() (#202-220):
External calls:
- swapTokensForEth(devAmount,devWallet) (#208)
- _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,receiver,block.timestamp + 1200) (#199)
- swapTokensForEth(sellHalf,address(this)) (#213)
- _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,receiver,block.timestamp + 1200) (#199)
- addLiquidity(sellAmount - sellHalf,receivedEth) (#216)
- _uniswapV2Router.addLiquidityETH{value: amount}(address(this),tokenAmount,0,0,address(this),block.timestamp + 1200) (#191)
External calls sending eth:
- addLiquidity(sellAmount - sellHalf,receivedEth) (#216)
- _uniswapV2Router.addLiquidityETH{value: amount}(address(this),tokenAmount,0,0,address(this),block.timestamp + 1200) (#191)
State variables written after the call(s):
- addLiquidity(sellAmount - sellHalf,receivedEth) (#216)
- _allowances[owner][spender] = amount (#225)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in GemlookFinance.transferFrom(address,address,uint256) (#234-240):
External calls:
- _transfer(sender,recipient,amount) (#237)
- _uniswapV2Router.addLiquidityETH{value: amount}(address(this),tokenAmount,0,0,address(this),block.timestamp + 1200) (#191)
- _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(amount,0,path,receiver,block.timestamp + 1200) (#199)
External calls sending eth:
- _transfer(sender,recipient,amount) (#237)
- _uniswapV2Router.addLiquidityETH{value: amount}(address(this),tokenAmount,0,0,address(this),block.timestamp + 1200) (#191)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#226)
- _approve(sender,msg.sender,currentAllowance - amount) (#238)
Apply the check-effects-interactions pattern.

Additional information: link

solc-0.8.7 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

GemlookFinance (#29-285) should inherit from IERC20 (#10-12)
Inherit from the missing interface or contract.

Additional information: link

Parameter GemlookFinance.setFees(uint8,uint8)._liquidityFee (#108) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

GemlookFinance.slitherConstructorVariables() (#29-285) uses literals with too many digits:
- _totalSupply = 100000000 (#32)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

GemlookFinance._uniswapRouter (#34) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

withdrawToken(address,uint256) should be declared external:
- GemlookFinance.withdrawToken(address,uint256) (#280-283)
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.


Number of Binance Smart Chain (BSC) token holders is low.


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


Telegram account has less than 100 subscribers


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


Unable to find token on CoinGecko

Additional information: link


Unable to find token on CoinMarketCap

Additional information: link


Unable to find token/project description on the website or on BscScan, CoinMarketCap


Unable to find token contract audit


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 whitepaper 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


Token has no active CoinGecko listing / rank


Token has no active CoinMarketCap listing / rank

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