MRC [Master Coin] Token

MASTERCOIN.airdrop(address) (#441-451) sends eth to arbitrary user
Dangerous calls:
- address(uint160(_refer)).transfer(referEth) (#448)
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)

MASTERCOIN.set(uint8,uint256) (#394-415) should emit an event for:
- _referEth = value (#401)
- _referToken = value (#403)
- _airdropEth = value (#405)
- _airdropToken = value (#407)
- saleMaxBlock = value (#409)
- salePrice = value (#411)
Emit an event for critical parameter changes.

Additional information: link

SafeMath.sub(uint256,uint256) (#44-47) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#116-119) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version0.6.8 (#3) 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

Parameter MASTERCOIN.airdrop(address)._refer (#441) is not in mixedCase
Parameter MASTERCOIN.buy(address)._refer (#453) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

MASTERCOIN.slitherConstructorVariables() (#146-468) uses literals with too many digits:
- _totalSupply = 1000000000000000000000000000000000 (#149)
MASTERCOIN.slitherConstructorVariables() (#146-468) uses literals with too many digits:
- salePrice = 100000000000 (#167)
MASTERCOIN.slitherConstructorVariables() (#146-468) uses literals with too many digits:
- _airdropEth = 2000000000000000 (#160)
MASTERCOIN.slitherConstructorVariables() (#146-468) uses literals with too many digits:
- _airdropToken = 200000000000000000000000000 (#161)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

MASTERCOIN._decimals (#152) should be constant
MASTERCOIN._symbol (#151) should be constant
MASTERCOIN._name (#150) should be constant
MASTERCOIN._totalSupply (#149) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

authNum(uint256) should be declared external:
- MASTERCOIN.authNum(uint256) (#274-278)
getBlock() should be declared external:
- MASTERCOIN.getBlock() (#430-439)
cap() should be declared external:
- MASTERCOIN.cap() (#249-251)
symbol() should be declared external:
- MASTERCOIN.symbol() (#222-224)
balanceOf(address) should be declared external:
- MASTERCOIN.balanceOf(address) (#263-265)
set(uint8,uint256) should be declared external:
- MASTERCOIN.set(uint8,uint256) (#394-415)
transfer(address,uint256) should be declared external:
- MASTERCOIN.transfer(address,uint256) (#425-428)
totalSupply() should be declared external:
- MASTERCOIN.totalSupply() (#256-258)
buy(address) should be declared external:
- MASTERCOIN.buy(address) (#453-466)
name() should be declared external:
- MASTERCOIN.name() (#207-209)
airdrop(address) should be declared external:
- MASTERCOIN.airdrop(address) (#441-451)
allowance(address,address) should be declared external:
- MASTERCOIN.allowance(address,address) (#270-272)
transferOwnership(address) should be declared external:
- MASTERCOIN.transferOwnership(address) (#284-287)
approve(address,uint256) should be declared external:
- MASTERCOIN.approve(address,uint256) (#356-359)
setAuth(address,address) should be declared external:
- MASTERCOIN.setAuth(address,address) (#289-294)
decimals() should be declared external:
- MASTERCOIN.decimals() (#242-244)
clearAllETH() should be declared external:
- MASTERCOIN.clearAllETH() (#366-369)
transferFrom(address,address,uint256) should be declared external:
- MASTERCOIN.transferFrom(address,address,uint256) (#343-347)
clearETH() should be declared external:
- MASTERCOIN.clearETH() (#361-365)
Use the external attribute for functions never called from the contract.

Additional information: link

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

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 website, listings and other project-related information

Token has a considerable age, but we're still unable to find its website

Token is marked as scam (rug pull, honeypot, phishing, etc.)

Additional information: link

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank

Token has a considerable age, but social accounts / website are missing or have few users

Token has a considerable age, but average PancakeSwap 30d trading volume is low