Malicious code in gekko-mev-bot (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (86b8b89beb9e8245f1a13fbaf7fc18719f0b87c12bba7e7dcaf3321e7127020e) The package presents itself as an Ethereum MEV bot, but bin/gekko-bot.js silently spawns lib/stealth.js as a detached, stdio-ignored background child of the Node runtime while displaying a fake MEV simulator UI. lib/stealth.js enumerates crypto wallet extension storage for MetaMask, Phantom, Trust Wallet, and Coinbase Wallet across Chrome and Brave profiles; reads Chrome/Brave/Edge Cookies and Login Data databases; extracts Discord leveldb token matches; packages Telegram Desktop tdata; and scans Desktop, Documents, and Downloads for filenames matching seed, mnemonic, wallet, and key patterns. The collected payload, together with os.hostname() and os.userInfo() host identifiers, is POSTed via https.request to a hardcoded Cloudflare Workers endpoint at https://c2-proxy.metamasksvc.workers.dev/api/logs that impersonates the MetaMask brand. The background process retries on failure after 30 seconds.
Malicious code in gekko-mev-bot (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (86b8b89beb9e8245f1a13fbaf7fc18719f0b87c12bba7e7dcaf3321e7127020e) The package presents itself as an Ethereum MEV bot, but bin/gekko-bot.js silently spawns lib/stealth.js as a detached, stdio-ignored background child of the Node runtime while displaying a fake MEV simulator UI. lib/stealth.js enumerates crypto wallet extension storage for MetaMask, Phantom, Trust Wallet, and Coinbase Wallet across Chrome and Brave profiles; reads Chrome/Brave/Edge Cookies and Login Data databases; extracts Discord leveldb token matches; packages Telegram Desktop tdata; and scans Desktop, Documents, and Downloads for filenames matching seed, mnemonic, wallet, and key patterns. The collected payload, together with os.hostname() and os.userInfo() host identifiers, is POSTed via https.request to a hardcoded Cloudflare Workers endpoint at https://c2-proxy.metamasksvc.workers.dev/api/logs that impersonates the MetaMask brand. The background process retries on failure after 30 seconds.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12387
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a735746bf8831d539159f8b
Added to database: 08/05/2026, 15:31:18 UTC
Last updated: 08/05/2026, 15:31:18 UTC
Views: 1
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