Abstract:
Cryptocurrency wallet security is vital, with private key compromises causing $2.2
billion in losses in 2024 (Chainalysis, 2024). This research introduces a multi-network
blockchain framework to safeguard funds in compromised wallets. The primary objective
is to develop a bot that, upon manual activation after a private key leak (e.g., phishing),
scans all EVM-compatible networks (Ethereum, Arbitrum, Base, Optimism, BNB Chain)
for any tokens (native or ERC-20) exceeding $1 in value, prioritizes transfers high to low,
and handles gas shortages via automated cross-chain swaps. Methods include a literature
review on wallet vulnerabilities (Li et al., 2020) and blockchain analytics (Bogner
et al., 2019), bot implementation using Python with web3.py for EIP-1559optimized
transfers, and HTTP RPC (Infura endpoints) for monitoring. Enhancements utilize free
APIs: Moralis for comprehensive asset scanning (listing network, token contract address,
amount, USDT value), CoinGecko for real-time pricing and sorting, Etherscan for gas
estimation (with a 5x buffer for safety), and 1inch for cross-chain swaps (e.g., swapping
ARB ETH to OPETH if gas is insufficient). The frameworks dashboard requires only the
hacked wallets private key and a safe address, enabling quick ( few seconds) scanning and
transfers. Testing on Sepolia and Arbitrum Goerli simulated 100–1,000 transfers, validating
10-second speed and over 95% success rate, with Telegram notifications for transfers
(e.g., “Transferred $10 USDT at 14:30”). Major findings reveal Arbitrum gas fees of
0.0001 ETH compared to Ethereum’s 0.01 ETH, with K-means clustering (scikit-learn)
detecting anomalies (95th percentile fees) as hacker indicators. The framework achieves
98% fund protection, but limitations include manual activation and HTTP latency (1–2s).
The proposed research concludes that the bot minimizes losses by prioritizing high-value
assets and enabling swaps, advancing blockchain security. Future implications involve
automated hack detection (e.g., 2+ transactions in 10s) and DeFi integration.
