hackingincidents.ai
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

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
Google
Model basis
stated by vendor
Autonomy
semi-autonomous
Outcome
Samples observed Sept 2025.