Malicious code in gekko-mev-bot (npm)

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

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--- _-= 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.

Source published

5 Aug 2026 12:45:54 UTC

Source modified

24 Sep 2026 09:30:14 UTC

Saved here

24 Oct 2026 13:17:17 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.