{
  "family": "bitwallet",
  "sample_count": 1,
  "category": "advanced_threat",
  "description": "<h3>Executive Summary</h3>\nBitwallet is a specialized Information Stealer (Info-Stealer) specifically designed to locate, exfiltrate, and compromise local cryptocurrency wallets on Windows endpoints. Unlike generic infostealers that grab browser passwords, Bitwallet's primary objective is the direct theft of digital assets (Bitcoin, Ethereum, Monero, etc.) by targeting the wallet files and associated private keys stored on the victim's hard drive.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nBitwallet is frequently distributed via targeted phishing campaigns directed at known cryptocurrency investors, disguised as fraudulent trading bots, or embedded within cracked software and game cheats distributed on peer-to-peer networks.\n\nUpon execution, it performs a highly targeted, \"smash-and-grab\" data harvesting operation:\n<ul>\n<li><strong>Targeted File System Scanning:</strong> The malware bypasses general system files and immediately initiates a deep scan of `AppData`, `Roaming`, and `Local` directories, explicitly hunting for default cryptocurrency wallet files (e.g., `wallet.dat` for Bitcoin Core, or keystore files for Ethereum wallets like Mist or Geth).</li>\n<li><strong>Browser Extension Targeting:</strong> Advanced variants of Bitwallet actively target the local storage databases of popular browser-based cryptocurrency wallets (such as MetaMask or Binance Chain Wallet) to extract encrypted seed phrases and session tokens.</li>\n<li><strong>Exfiltration and Keylogging:</strong> Bitwallet often includes a specialized keylogger designed to activate only when the user opens a known cryptocurrency exchange website or wallet application, attempting to capture the master password used to decrypt the stolen `wallet.dat` files. The stolen files and logs are then exfiltrated to an attacker-controlled server.</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nA Bitwallet infection is a critical incident that almost always results in direct, irreversible financial loss. Because cryptocurrency transactions are immutable, once the attacker decrypts the stolen wallet file and transfers the funds, recovery is impossible.\n\n<h3>Incident Response and Remediation</h3>\n<ul>\n<li><strong>Immediate Network Isolation:</strong> If the infection is detected early, immediately disconnect the machine from the internet to halt the exfiltration of the `wallet.dat` files.</li>\n<li><strong>Asset Transfer (Emergency):</strong> If the user still has access to their funds via a clean device (e.g., a hardware wallet or a mobile app), they must immediately transfer all assets to a newly generated, secure wallet address.</li>\n<li><strong>Endpoint Eradication:</strong> The compromised machine must undergo a complete bare-metal wipe and re-image. Re-using the machine without a full wipe guarantees that any new wallets created will be immediately compromised.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Trojan.CoinStealer",
    "PWS.Bitwallet",
    "TrojanSpy.CryptoSteal"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1555.003",
    "T1005",
    "T1056.001",
    "T1048"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-02T06:46:38Z",
  "type": "Information Stealer / Crypto-Stealer",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}