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Architecture

System Overview

The SmartContractAudit system is designed as a modular, multi-chain auditing and monitoring platform with automated repair capabilities.

Architecture Diagram

┌─────────────────────────────────────────────────────────────┐
│                     GitHub Actions                           │
│  ┌─────────────┐  ┌──────────────┐  ┌──────────────┐       │
│  │   Auditor   │  │  Auto-Repair │  │  PR Creator  │       │
│  │    Bot      │  │   Workflow   │  │   Workflow   │       │
│  └──────┬──────┘  └──────┬───────┘  └──────┬───────┘       │
└─────────┼─────────────────┼──────────────────┼──────────────┘
          │                 │                  │
          ▼                 ▼                  ▼
┌─────────────────────────────────────────────────────────────┐
│                    Auditor Engine                            │
│  ┌──────────────┐ ┌──────────────┐ ┌──────────────┐        │
│  │  Antivirus   │ │    Spam      │ │   Honeypot   │        │
│  │   Scanner    │ │   Detector   │ │   Detector   │        │
│  └──────────────┘ └──────────────┘ └──────────────┘        │
│  ┌──────────────┐ ┌──────────────┐ ┌──────────────┐        │
│  │    Wallet    │ │   Pattern    │ │  Deep Scan   │        │
│  │    Tracer    │ │   Analyzer   │ │    Engine    │        │
│  └──────────────┘ └──────────────┘ └──────────────┘        │
└─────────────────────────────────────────────────────────────┘
          │                 │                  │
          ▼                 ▼                  ▼
┌─────────────────────────────────────────────────────────────┐
│                Multi-Chain Connectors                        │
│  ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐       │
│  │ Ethereum │ │   BSC    │ │ Polygon  │ │  Solana  │       │
│  └──────────┘ └──────────┘ └──────────┘ └──────────┘       │
└─────────────────────────────────────────────────────────────┘

Core Components

1. Auditor Engine

The central processing unit that coordinates all scanning and detection modules.

Responsibilities:

  • Orchestrate multi-chain scanning
  • Coordinate detection modules
  • Generate audit reports
  • Trigger automated repairs

2. Detection Modules

Antivirus Scanner

Scans smart contracts for known malicious patterns and vulnerabilities.

Key Features:

  • Bytecode analysis
  • Opcode pattern matching
  • Known vulnerability signatures
  • Similarity detection

Spam Detector

Identifies spam transactions, contracts, and airdrop scams.

Detection Methods:

  • Transaction pattern analysis
  • Contract deployment frequency
  • Token distribution patterns
  • Interaction graph analysis

Honeypot Detector

Flags honeypot contracts that trap user funds.

Detection Techniques:

  • Transfer simulation
  • Liquidity lock detection
  • Hidden mint functions
  • Ownership manipulation checks

Wallet Tracer

Deep scans wallets to trace fund flows and identify deposit sources.

Capabilities:

  • Transaction graph traversal
  • Deposit origin tracking
  • Fund flow visualization
  • Cluster analysis

3. Multi-Chain Connectors

Abstract layer for interacting with different blockchain networks.

Supported Chains:

  • Ethereum (EVM)
  • Binance Smart Chain
  • Polygon
  • Avalanche
  • Fantom
  • Solana
  • Arbitrum
  • Optimism

4. Automation Layer

GitHub Actions Workflows

  • Auditor Bot: Continuous monitoring and alert generation
  • Auto-Repair: Automatic vulnerability patching
  • PR Creator: Automated pull request generation with fixes

Data Flow

  1. Input: Contract addresses, wallet addresses, or transaction hashes
  2. Processing: Multi-module parallel scanning
  3. Analysis: Pattern matching and heuristic analysis
  4. Reporting: Generate comprehensive audit reports
  5. Action: Trigger automated repairs or alerts
  6. Output: Reports, PRs, and admin notifications

Security Considerations

  • All RPC endpoints use authenticated connections
  • Private keys stored in GitHub Secrets
  • Rate limiting on API calls
  • Sandboxed contract execution for simulation

Scalability

  • Horizontal scaling via worker processes
  • Queue-based job processing
  • Caching layer for repeated scans
  • Batch processing for large-scale audits

Extension Points

  • Custom detection modules
  • Additional chain support
  • Webhook integrations
  • Custom reporting formats