GitHub Runner Memory Scraper (Miasma Worm)
Detects suspicious process execution patterns associated with the Miasma worm, which attempts to scrape GitHub Actions Runner.Worker process memory to extract masked secrets. This rule looks for specific command-line arguments used by memory dumping tools or scripts targeting the GitHub Actions Runner.Worker process, including `grep` for secret JSON structures, `python` targeting `/proc/pid/mem`, and specific shell pipeline combinations observed in Miasma payloads.
Microsoft Sentinel (KQL)
