Turla turns Kazuar into a modular P2P botnet for covert, long-term access

Colleagues, a note for cybersecurity professionals: Turla/Secret Blizzard has transformed the Kazuar backdoor into a modular P2P botnet designed for covert, persistent access.

- CISA and Microsoft: targets — government bodies and diplomatic missions in Europe and Central Asia.
- Kazuar is split into Kernel (coordinator), Bridge (proxy) and Worker (data collector); distribution via Pelmeni and ShadowLoader.
- Internal communication: Windows Messaging, Mailslot, named pipes; external channels: EWS, HTTP, WebSockets. Kernel elects a leader via Mailslot and uses a working directory for data staging and exfiltration.

Why it matters: resilience and stealth are increased, making detection and removal harder.

Are you ready to revisit monitoring for modular P2P mechanisms?

#cybersecurity #APT #malware #ThreatIntel