🛡️ MAL-2026-12387 — gekko-mev-bot
Description
Malicious code in gekko-mev-bot (npm)
Source: amazon-inspector
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
MAL-2026-12387 is recorded against 1 package.
- gekko-mev-bot
Timeline and source
Published on 5 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| gekko-mev-bot | — | — |
References
More MAL 2026 advisories
Browse all of MAL 2026 in the advisory index.
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