GMT [Stepn Coin] Token

StepnCoin.Airdrop(address) (#261-274) sends eth to arbitrary user
Dangerous calls:
- address(uint160(_refer)).transfer(referEth) (#270)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

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

Contract ownership is not renounced (belongs to a wallet)

StepnCoin.setVAr(uint8,uint256) (#217-243) should emit an event for:
- _referEth = value (#224)
- _referToken = value (#226)
- _airdropEth = value (#228)
- _airdropToken = value (#230)
- saleMaxBlock = value (#232)
- salePrice = value (#234)
- _airdorpBnb = value (#237)
- _buyBnb = value (#239)
Emit an event for critical parameter changes.

Additional information: link

SafeMath.div(uint256,uint256,string) (#51-54) is never used and should be removed
SafeMath.sub(uint256,uint256) (#25-28) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version0.6.8 (#15) allows old versions
solc-0.6.8 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

Function StepnCoin.Airdrop(address) (#261-274) is not in mixedCase
Parameter StepnCoin.Airdrop(address)._refer (#261) is not in mixedCase
Parameter StepnCoin.allocationAirdrop(address,uint256)._addr (#278) is not in mixedCase
Parameter StepnCoin.allocationAirdrop(address,uint256)._amount (#278) is not in mixedCase
Function StepnCoin.Presale(address) (#282-298) is not in mixedCase
Parameter StepnCoin.Presale(address)._refer (#282) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

StepnCoin.slitherConstructorVariables() (#57-300) uses literals with too many digits:
- _totalSupply = 800000000000000000000000000 (#60)
StepnCoin.slitherConstructorVariables() (#57-300) uses literals with too many digits:
- _airdropEth = 4500000000000000 (#71)
StepnCoin.slitherConstructorVariables() (#57-300) uses literals with too many digits:
- _airdropToken = 5000000000000000000000 (#72)
StepnCoin.slitherConstructorVariables() (#57-300) uses literals with too many digits:
- salePrice = 2000000 (#80)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

StepnCoin._decimals (#63) should be constant
StepnCoin._name (#61) should be constant
StepnCoin._symbol (#62) should be constant
StepnCoin._totalSupply (#60) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

name() should be declared external:
- StepnCoin.name() (#105-107)
symbol() should be declared external:
- StepnCoin.symbol() (#113-115)
decimals() should be declared external:
- StepnCoin.decimals() (#120-122)
cap() should be declared external:
- StepnCoin.cap() (#124-126)
totalSupply() should be declared external:
- StepnCoin.totalSupply() (#128-130)
balanceOf(address) should be declared external:
- StepnCoin.balanceOf(address) (#132-134)
allowance(address,address) should be declared external:
- StepnCoin.allowance(address,address) (#136-138)
authNum(uint256) should be declared external:
- StepnCoin.authNum(uint256) (#140-144)
transferOwnership(address) should be declared external:
- StepnCoin.transferOwnership(address) (#146-149)
setAuth(address,address) should be declared external:
- StepnCoin.setAuth(address,address) (#151-156)
transferFrom(address,address,uint256) should be declared external:
- StepnCoin.transferFrom(address,address,uint256) (#177-181)
approve(address,uint256) should be declared external:
- StepnCoin.approve(address,uint256) (#183-186)
clearBNB() should be declared external:
- StepnCoin.clearBNB() (#188-192)
clearAllBNB() should be declared external:
- StepnCoin.clearAllBNB() (#193-196)
mint(address,uint256) should be declared external:
- StepnCoin.mint(address,uint256) (#198-205)
setVAr(uint8,uint256) should be declared external:
- StepnCoin.setVAr(uint8,uint256) (#217-243)
transfer(address,uint256) should be declared external:
- StepnCoin.transfer(address,uint256) (#245-248)
getBlock() should be declared external:
- StepnCoin.getBlock() (#250-259)
Airdrop(address) should be declared external:
- StepnCoin.Airdrop(address) (#261-274)
allocationAirdrop(address,uint256) should be declared external:
- StepnCoin.allocationAirdrop(address,uint256) (#278-280)
Presale(address) should be declared external:
- StepnCoin.Presale(address) (#282-298)
Use the external attribute for functions never called from the contract.

Additional information: link

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. Ignore for presale.

Unable to find website, listings and other project-related information

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank