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Talos finds NIK C2 Windows RAT that calls OpenAI from infected PCs

Original title: New AI-Powered NIK C2 Malware Uses OpenAI API to Help Hackers Steal Data and Control Windows PCs

GBHackersby Kavichselvan ()2 min read1 · 1 read
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

The Go implant runs more than 52 commands, bills the victim’s OpenAI key, and shows a lock screen without encrypting files.

Cisco Talos says NIK C2 is a 64-bit Go Windows remote access tool with a built-in OpenAI client. Operators send prompts from an infected PC and read replies in the C2 panel; if no key is supplied, the implant uses the victim’s OPENAI_API_KEY and defaults to gpt-4. It steals credentials, wallets and surveillance data, supports remote control, and includes a non-encrypting lock-screen module. Talos points defenders to a live server, local artifacts and unexpected calls to api.openai.com.

Unconfirmed: Talos assigns moderate confidence that NIK C2 is a working framework rather than a proof of concept.

Key facts
  • C2 uses TLS WebSockets on port 443, with HTTP polling every 250 milliseconds.
  • Traffic is AES-256-GCM; Talos saw 87.120.196.120 and total-sitevv.lol.
  • The lock screen demands Bitcoin and USDT and is relaunched via mshta.exe.
  • ClamAV detects it as Win.Trojan.GoDiscorder-10060526-0.
  • A bootkit routine writes a placeholder file named bootkit.bin.
Security assessment · AI, from the article

Impact: Credential, wallet and surveillance theft plus a fake lock screen

What to do
  1. 1.Watch for traffic to total-sitevv.lol and 87.120.196.120.
  2. 2.Look for the SystemLock Run key, lock_start.bat and lock_screen.html.
  3. 3.Rotate exposed AI API keys and review calls to api.openai.com.
Analyze this story with Vani AIImpact, who is affected and what defenders should do, in a new chat

Indicators of compromise

auto-extracted · verify before use · export allAll
TypeIndicatorContext
domaintotal-sitevv.lolos saw a live server at 87.120.196[.]120, which resolved to total-sitevv[.]lol. Its certificate used the common name “nik-panel”. That c
ipv487.120.196.120nd a hardcoded fallback address. Talos saw a live server at 87.120.196[.]120, which resolved to total-sitevv[.]lol. Its certificate us

From the original article

2 min read at gbhackers.com

Cisco Talos has uncovered NIK C2, a Go-based, 64-bit Windows remote access tool that embeds a working OpenAI client. Operators can send prompts through an infected machine and read the model’s replies in their C2 panel. NIK C2 malware According to technical research published by Cisco Talos, the implant talks to its server over TLS-secured […]

GBHackers

By Kavichselvan · gbhackers.com

Read the full article at GBHackers

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.