FIRESTARTER Backdoor

April 17, 2026 · CISA Advisories · Severity: CRITICAL

Malware Analysis Report at a Glance Malware Name FIRESTARTER Original Publication April 23, 2026 Executive Summary The Cybersecurity and Infrastructure Security Agency (CISA) analyzed a sample of FIRESTARTER malware obtained from a forensic investigation.

Key Takeaways

Malware Analysis Report at a Glance Malware Name FIRESTARTER Original Publication April 23, 2026 Executive Summary. CISA and the NCSC are releasing this Malware Analysis Report to share analysis of one FIRESTARTER malware sample.
Note: The release of this Malware Analysis Report aligns with CISA’s update to V1: Emergency Directive (ED) 25-03.