S3XY TWITT3R

Smart Contract Audit Report

Audit Summary

S3XY TWITT3R is a new ERC-20 token on Ethereum that is an automatic liquidity providing protocol that pays out static rewards to holders.

For this audit, we reviewed the project team's S3XYTWITT3R contract at 0x4E4468Bd073c9c8F22ccf738Fa718C2FD6F0955c on the Ethereum Mainnet.

Audit Findings

Please ensure trust in the team prior to investing as they have substantial control in the ecosystem.
Date: April 25th, 2022.

Finding #1 - S3XYTWITT3R - Informational

Description: Although the SafeMath library is utilized, the contract is deployed with Solidity v0.8.7 which has built-in overflow checks.
Recommendation: SafeMath could be safely removed to reduce contract size and deployment costs.

Contract Overview

• The total supply of the token is set to 46.5 billion $S3XY [46,500,000,000].
• No mint or burn functions exist, though the circulating supply can be decreased by sending tokens to the 0x..dead address.
• At the time of writing this report, there are 127 total token holders. The token allocation is as follows:
  • 25% of the total supply is stored in an upgradeable proxy contract.
  • 23.85% of the total supply is in Uniswap liquidity.
  • Of that liquidity, 89% of the LP tokens are stored in a Unicrypt token locking contract and will vest to the team on October 23rd, 2022.
  • 10.1% of the LP tokens have been sent to the 0x00 address.
  • The next five holders own a cumulative 10.48% of the total supply.
  
  
• Trading must be enabled by the owner in order for all trading to take place on the platform. Only the owner and whitelisted accounts can participate in transfers when trading is disabled.
• The contract enforces a maximum transaction amount (determined by the owner) which imposes a limit to the number of tokens that can be transferred in a single transaction.
• The contract enforces a maximum wallet amount that prevents a transfer from occurring if the recipient's token balance will exceed the limit number of tokens (determined by the owner) after the transfer occurs.
• Blacklisted accounts are prohibited from participating in transfers.
• There is a Residtribution fee, Liquidity fee, and Marketing fee on all transfers via Uniswap where neither the sender nor the recipient is excluded from fees. A separate fee structure can be set by the team to apply different fee percentages depending on whether the user is buying or selling during the transfer.
• The tokens collected through the Residtribution fee are removed from the circulating supply; This serves as a frictionless fee redistribution that automatically benefits all token holders at the time of each transaction.
• The Liquidity fee charged during transfers is stored in the contract address. The tokens are swapped for ETH for the purpose of funding Uniswap liquidity when the following conditions are met:
  • The automatic liquidity add functionality is enabled by the team.
  • The threshold number of tokens (determined by the owner) in the contract address has been reached.
  • The contract is not currently performing an automatic liquidity add.
  • The caller is not initiating a buy transaction via Uniswap.
  • Both the sender and the recipient are not excluded from fees.
• Liquidity-adds are automatically performed by selling the tokens collected as fees, pairing the received ETH with the token, and adding it as liquidity to the ETH pair.
• The LP tokens received through this process are sent to the 0x00 address.
• The tokens collected through the Marketing fee are split between two fee wallets controlled by the team.
• The contract utilizes the SafeMath library to protect against overflows/underflows.
• The contract complies with the ERC-20 token standard.

Ownership Controls:

• The owner can modify the Redistribution fee, Liquidity fee, and Marketing fee for both the buy and sell fee structures to any percentages at any time.
• The owner can exclude and include accounts from transfer fees.
• The owner can add/remove accounts from the transfer blacklist at any time.
• The owner can update the maximum transaction amount to any value at any time.
• The owner can update the maximum wallet amount to any value at any time.
• The owner can enable/disable all transfers at any time.
• The owner can enable/disable automatic liquidity adds at any time.
• The owner can update the threshold number of tokens needed to trigger an automatic liquidity add to any value at any time.
• The owner can add/remove accounts from the pre-trading whitelist at any time.
• The owner and the team's fee wallets can manually swap the tokens in the contract address for ETH and send it to the team's send it to the fee wallets.
• The owner can update the team's fee wallets to any addresses at any time.

Audit Results

Inheritance Chart

Function Graph

Functions Overview

 ($) = payable function
 # = non-constant function
 
 Int = Internal
 Ext = External
 Pub = Public

 +  Context 
    - [Int] _msgSender

 + [Int] IERC20 
    - [Ext] totalSupply
    - [Ext] balanceOf
    - [Ext] transfer #
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transferFrom #

 +  Ownable (Context)
    - [Pub]  #
    - [Pub] owner
    - [Pub] renounceOwnership #
       - modifiers: onlyOwner
    - [Pub] transferOwnership #
       - modifiers: onlyOwner

 + [Lib] SafeMath 
    - [Int] add
    - [Int] sub
    - [Int] sub
    - [Int] mul
    - [Int] div
    - [Int] div

 + [Int] IUniswapV2Factory 
    - [Ext] createPair #

 + [Int] IUniswapV2Router02 
    - [Ext] swapExactTokensForETHSupportingFeeOnTransferTokens #
    - [Ext] factory
    - [Ext] WETH
    - [Ext] addLiquidityETH ($)

 +  S3XYTWITT3R (Context, IERC20, Ownable)
    - [Pub]  #
    - [Pub] name
    - [Pub] symbol
    - [Pub] decimals
    - [Pub] totalSupply
    - [Pub] balanceOf
    - [Pub] transfer #
    - [Pub] allowance
    - [Pub] approve #
    - [Pub] transferFrom #
    - [Prv] tokenFromReflection
    - [Prv] removeAllFee #
    - [Prv] restoreAllFee #
    - [Prv] _approve #
    - [Prv] _transfer #
    - [Prv] swapTokensForEth #
       - modifiers: lockTheSwap
    - [Prv] swapDistributeAndLiquify #
    - [Prv] addLiquidity #
    - [Prv] sendETHToFee #
    - [Pub] setTrading #
       - modifiers: onlyOwner
    - [Ext] manualswap #
    - [Ext] manualsend #
    - [Pub] blockBots #
       - modifiers: onlyOwner
    - [Pub] unblockBot #
       - modifiers: onlyOwner
    - [Prv] _tokenTransfer #
    - [Prv] _transferStandard #
    - [Prv] _takeTeam #
    - [Prv] _reflectFee #
    - [Ext]  ($)
    - [Prv] _getValues
    - [Prv] _getTValues
    - [Prv] _getRValues
    - [Prv] _getRate
    - [Prv] _getCurrentSupply
    - [Pub] setFee #
       - modifiers: onlyOwner
    - [Pub] excludeMultipleAccountsFromFees #
       - modifiers: onlyOwner
    - [Pub] setMinSwapTokensThreshold #
       - modifiers: onlyOwner
    - [Pub] setTaxWallet #
       - modifiers: onlyOwner
    - [Pub] toggleSwap #
       - modifiers: onlyOwner
    - [Pub] setMaxTxnAmount #
       - modifiers: onlyOwner
    - [Pub] setMaxWalletSize #
       - modifiers: onlyOwner
    - [Pub] allowPreTrading #
       - modifiers: onlyOwner

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Typically, a smart contract audit is a comprehensive review process designed to discover logical errors, security vulnerabilities, and optimization opportunities within code. A SourceHat Audit takes this a step further by verifying economic logic to ensure the stability of smart contracts and highlighting privileged functionality to create a report that is easy to understand for developers and community members alike.

How Do I Interpret the Findings?

Each of our Findings will be labeled with a Severity level. We always recommend the team resolve High, Medium, and Low severity findings prior to deploying the code to the mainnet. Here is a breakdown on what each Severity level means for the project:

• High severity indicates that the issue puts a large number of users' funds at risk and has a high probability of exploitation, or the smart contract contains serious logical issues which can prevent the code from operating as intended.
• Medium severity issues are those which place at least some users' funds at risk and has a medium to high probability of exploitation.
• Low severity issues have a relatively minor risk association; these issues have a low probability of occurring or may have a minimal impact.
• Informational issues pose no immediate risk, but inform the project team of opportunities for gas optimizations and following smart contract security best practices.

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