🛡️ MAL-2026-12387 — gekko-mev-bot

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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

www.npmjs.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-05
Updated 2026-08-12
Modified 2026-08-05
Fix URL N/A

Affected Packages

Software From version Fixed in
gekko-mev-bot

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