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NIK C2 malware bills AI queries to victims' OpenAI keys

Original title: NIK C2 Malware Can Use Victims’ OpenAI Keys for AI Queries

Infosecurity Magazineby Alessandro Mascellino ()2 min read1
Part of a story covered by 5 sourcesCisco Talos details in-the-wild NIK C2 that bills victims’ OpenAI keysMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

Cisco Talos says the Go implant offers more than 52 commands plus a screen-lock ransom module that encrypts no files.

Cisco Talos reported NIK C2, a Go-based Windows command-and-control implant observed in the wild and published on October 29. Operators can send prompts and a model choice from the C2 panel; the implant calls OpenAI from the victim machine. If no key is supplied, it reads the OPENAI_API_KEY environment variable, so the victim’s account is billed and logs show the victim’s key. The framework also steals credentials and browser, wallet and Wi-Fi data, and includes keylogging, screen capture, remote access and a screen-locking ransom note demanding Bitcoin or USDT.

Unconfirmed: Talos assesses with moderate confidence that NIK C2 is fully functional rather than a proof of concept.

Key facts
  • Talos saw at least three implant versions and active infrastructure.
  • The ransom module locks the screen and does not encrypt files.
  • OpenAI access logs would attribute requests to the victim’s key.
  • Talos says collection and AI analysis happen in one session.
Security assessment · AI, from the article

Impact: Remote access, stolen credentials and victim-funded OpenAI queries

ProductAffected
OpenAI API—
What to do
  1. 1.Check compromised Windows hosts for an OPENAI_API_KEY environment variable.
  2. 2.Review OpenAI billing and access logs for unexpected API use.
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From the original article

2 min read at infosecurity-magazine.com

NIK C2 malware can fall back on victims’ OpenAI API keys to run AI queries

Infosecurity Magazine

By Alessandro Mascellino · infosecurity-magazine.com

Read the full article at Infosecurity Magazine

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.