Agents and harnesses · Agent infra
Malicious Claude Code Extension Build Added SSH Backdoor
A trojanized Open VSX Claude Code extension build reportedly added an SSH key, reverse tunnel, and persistence.
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Trojanized Claude Code Extension 2.1.313 in Cursor Marketplace Plants SSH Backdoor – Rescanarescana.com, Oct 30Cursor shuts down extension marketplace after malicious Claude Code puts 5,000 users at riskfirstpost.com, Oct 30Weaponized Claude Code Extension Gives Hackers Persistent Remote Access to Developer Systemscybersecuritynews.com, Oct 30Claude Code extension compromised on Cursor, tries to open an SSH backdoorpasqualepillitteri.it, Oct 30Cursor flags malicious Claude Code extension, up to 5,000 users affected - BusinessTodaybusinesstoday.in, Oct 30Cursor says up to 5,000 users affected by tampered Claude Code extension | World News - Business Standardbusiness-standard.com, Oct 30Cursor Discloses SSH Backdoor Attempt in Malicious Claude Code Extension – Unite.AIunite.ai, Oct 30