SloppyMIO
Intelligence Profile
According to HarfangLab, SloppyMIO is written in C#. It retrieves its configuration steganographically from images whose URLs are obtained via a Dead Drop Resolver (DDR) backed by GitHub. From these images, it extracts a XOR key, Telegram bot token and chat ID, and module URLs from an LSB-hidden payload. The malware can fetch and cache multiple modules from remote storage, run arbitrary commands, collect and exfiltrate files and deploy further malware with persistence via scheduled tasks. SloppyMIO beacons status messages, polls for commands and sends exfiltrated files over to a specified operator leveraging the Telegram Bot API for command-and-control.
Threat Analysis
SloppyMIO is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.