ASIX+
Smart Contract Audit Report
Audit Summary
ASIX+ is a new BEP-20 token on the Binance Smart Chain that pays out static rewards to holders.
For this audit, we reviewed the project team's ASIX_PLUS contract at 0x2bF4BE7C4520C41d012EB09a034179E03b898534 on the Binance Smart Chain Mainnet.
Audit Findings
Please ensure trust in the team prior to investing as they have substantial control in the ecosystem.
Date: April 7th, 2022.
Updated: April 11th, 2022 to reflect the contract's new mainnet address.Finding #1 - ASIX_PLUS - Informational
Description: Several state variables can never be modified, but are not declared constant.Recommendation: These state variables should be declared constant for additional gas savings on each call._decimals, _name, _symbol _tTotal, _previousOwner
Finding #2 - ASIX_PLUS - Informational
Description: The addLiquidity function is not used in the contract.
Recommendation: This function should either be removed or utilized in a way that fits the project team's intended functionality.Finding #3 - ASIX_PLUS - Informational
Description: Although the SafeMath library is utilized, the contract is deployed with Solidity v0.8.10 which has built-in overflow checks.
Recommendation: SafeMath could be safely removed to reduce contract size and deployment costs.
Contract Overview
Ownership Controls:
- The total supply of the token is set to 10 trillion $ASIX+ [10,000,000,000,000].
- 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, 100% of the total supply belongs to the owner.
- 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 transferring tokens.
- There is a 2% Tax fee and a 2% Marketing fee on all transfers via Pancakeswap where neither the sender nor the recipient is excluded from fees.
- The tokens collected through the Tax 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 tokens collected through the Marketing fee are sent to the team's Tax Pool wallet.
- The contract utilizes the SafeMath library to protect against overflows/underflows.
- The contract complies with the BEP-20 token standard.
- The owner can exclude and include accounts from transfer fees and reward distribution.
- The owner can set the maximum transaction amount and maximum wallet amount to any values at any time.
- The owner can exclude and include accounts from the maximum transaction amount and maximum wallet amount restrictions at any time.
- The owner can add/remove accounts from the transfer blacklist at any time.
- The owner can withdraw any tokens from the contract at any time.
- The owner can update the team's Tax Pool wallet at any time.
External Threat Results
Vulnerability Category | Notes | Result |
---|---|---|
Arbitrary Storage Write | N/A | PASS |
Arbitrary Jump | N/A | PASS |
Centralization of Control |
| WARNING |
Compiler Issues | N/A | PASS |
Delegate Call to Untrusted Contract | N/A | PASS |
Dependence on Predictable Variables | N/A | PASS |
Ether/Token Theft | N/A | PASS |
Flash Loans | N/A | PASS |
Front Running | N/A | PASS |
Improper Events | N/A | PASS |
Improper Authorization Scheme | N/A | PASS |
Integer Over/Underflow | N/A | PASS |
Logical Issues | N/A | PASS |
Oracle Issues | N/A | PASS |
Outdated Compiler Version | N/A | PASS |
Race Conditions | N/A | PASS |
Reentrancy | N/A | PASS |
Signature Issues | N/A | PASS |
Unbounded Loops | N/A | PASS |
Unused Code | The addLiquidity function is not used in the contract. | PASS |
Overall Contract Safety | PASS |
Inheritance Chart
Function Graph
Functions Overview
($) = payable function
# = non-constant function
Int = Internal
Ext = External
Pub = Public
+ [Int] IERC20
- [Ext] totalSupply
- [Ext] balanceOf
- [Ext] transfer #
- [Ext] allowance
- [Ext] approve #
- [Ext] transferFrom #
+ [Lib] SafeMath
- [Int] add
- [Int] sub
- [Int] sub
- [Int] mul
- [Int] div
- [Int] div
- [Int] mod
- [Int] mod
+ Context
- [Int] _msgSender
- [Int] _msgData
+ [Lib] Address
- [Int] isContract
- [Int] sendValue #
- [Int] functionCall #
- [Int] functionCall #
- [Int] functionCallWithValue #
- [Int] functionCallWithValue #
- [Prv] _functionCallWithValue #
+ Ownable (Context)
- [Pub] #
- [Pub] owner
- [Pub] renounceOwnership #
- modifiers: onlyOwner
- [Pub] transferOwnership #
- modifiers: onlyOwner
+ [Int] IUniswapV2Factory
- [Ext] feeTo
- [Ext] feeToSetter
- [Ext] getPair
- [Ext] allPairs
- [Ext] allPairsLength
- [Ext] createPair #
- [Ext] setFeeTo #
- [Ext] setFeeToSetter #
+ [Int] IUniswapV2Pair
- [Ext] name
- [Ext] symbol
- [Ext] decimals
- [Ext] totalSupply
- [Ext] balanceOf
- [Ext] allowance
- [Ext] approve #
- [Ext] transfer #
- [Ext] transferFrom #
- [Ext] DOMAIN_SEPARATOR
- [Ext] PERMIT_TYPEHASH
- [Ext] nonces
- [Ext] permit #
- [Ext] MINIMUM_LIQUIDITY
- [Ext] factory
- [Ext] token0
- [Ext] token1
- [Ext] getReserves
- [Ext] price0CumulativeLast
- [Ext] price1CumulativeLast
- [Ext] kLast
- [Ext] mint #
- [Ext] burn #
- [Ext] swap #
- [Ext] skim #
- [Ext] sync #
- [Ext] initialize #
+ [Int] IUniswapV2Router01
- [Ext] factory
- [Ext] WETH
- [Ext] addLiquidity #
- [Ext] addLiquidityETH ($)
- [Ext] removeLiquidity #
- [Ext] removeLiquidityETH #
- [Ext] removeLiquidityWithPermit #
- [Ext] removeLiquidityETHWithPermit #
- [Ext] swapExactTokensForTokens #
- [Ext] swapTokensForExactTokens #
- [Ext] swapExactETHForTokens ($)
- [Ext] swapTokensForExactETH #
- [Ext] swapExactTokensForETH #
- [Ext] swapETHForExactTokens ($)
- [Ext] quote
- [Ext] getAmountOut
- [Ext] getAmountIn
- [Ext] getAmountsOut
- [Ext] getAmountsIn
+ [Int] IUniswapV2Router02 (IUniswapV2Router01)
- [Ext] removeLiquidityETHSupportingFeeOnTransferTokens #
- [Ext] removeLiquidityETHWithPermitSupportingFeeOnTransferTokens #
- [Ext] swapExactTokensForTokensSupportingFeeOnTransferTokens #
- [Ext] swapExactETHForTokensSupportingFeeOnTransferTokens ($)
- [Ext] swapExactTokensForETHSupportingFeeOnTransferTokens #
+ ASIX_PLUS (Context, IERC20, Ownable)
- [Pub] #
- [Pub] name
- [Pub] symbol
- [Pub] decimals
- [Pub] totalSupply
- [Pub] balanceOf
- [Pub] transfer #
- [Pub] allowance
- [Pub] approve #
- [Pub] transferFrom #
- [Pub] increaseAllowance #
- [Pub] decreaseAllowance #
- [Pub] isExcludedFromReward
- [Pub] totalFees
- [Pub] reflectionFromToken
- [Pub] tokenFromReflection
- [Ext] updateTaxPoolWallet #
- modifiers: onlyOwner
- [Ext] addBotToBlacklist #
- modifiers: onlyOwner
- [Ext] removeBotFromBlacklist #
- modifiers: onlyOwner
- [Pub] excludeFromReward #
- modifiers: onlyOwner
- [Ext] includeInReward #
- modifiers: onlyOwner
- [Pub] excludeFromFee #
- modifiers: onlyOwner
- [Pub] includeInFee #
- modifiers: onlyOwner
- [Pub] excludeFromLimit #
- modifiers: onlyOwner
- [Pub] includeInLimit #
- modifiers: onlyOwner
- [Ext] setSellFee #
- modifiers: onlyOwner
- [Ext] setBuyFee #
- modifiers: onlyOwner
- [Ext] setBothFees #
- modifiers: onlyOwner
- [Ext] setMaxTxPercent #
- modifiers: onlyOwner
- [Ext] _setMaxWalletSizePercent #
- modifiers: onlyOwner
- [Prv] _reflectFee #
- [Prv] _getTValues
- [Prv] _getRValues
- [Prv] _getRate
- [Prv] _getCurrentSupply
- [Prv] _takeMarketing #
- [Prv] calculateTaxFee
- [Prv] calculateMarketingFee
- [Prv] removeAllFee #
- [Prv] setBuy #
- [Prv] setSell #
- [Pub] isExcludedFromFee
- [Pub] isExcludedFromLimit
- [Prv] _approve #
- [Prv] _transfer #
- [Prv] swapTokensForEth #
- [Prv] addLiquidity #
- [Prv] _tokenTransfer #
- [Prv] _transferStandard #
- [Prv] _transferToExcluded #
- [Prv] _transferFromExcluded #
- [Prv] _transferBothExcluded #
- [Pub] withdrawToken #
- modifiers: onlyOwner
- [Ext] #
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What is a SourceHat Audit?
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.