Ledger / Sep 2025
HONESTCUE malware outsourced stage-two code generation to Gemini
Confirmed
Google analyzed the samples.
A downloader sent hard-coded prompts to the Gemini API and ran the returned C# to fetch and execute a second-stage payload.
“HONESTCUE is a downloader and launcher framework that sends a prompt via Google Gemini's API and receives C# source code as the response.”Google Threat Intelligence Group
Sources
- GTIG AI Threat Tracker: Distillation, Experimentation, and (Continued) Integration of AI for Adversarial UseGoogle Threat Intelligence Group · 12 Feb 2026 · primary source
- Date
- Sep 2025
- Disclosed
- 12 Feb 2026
- Actor
- Unattributed (unknown), as attributed by Google Threat Intelligence Group
- Targets
- Unspecified
- What the AI did
- LLM inside malware, Evasion
- Model
- Gemini
- Model family
- Model basis
- stated by vendor
- Autonomy
- semi-autonomous
- Outcome
- Samples observed Sept 2025.