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#3 BleepingComputer general May 16, 2026 at 14:15 UTC

Russian hackers turn Kazuar backdoor into modular P2P botnet

By Bill Toulas

AI Summary

Russia-linked threat actor Secret Blizzard has evolved its long-standing Kazuar backdoor into a modular peer-to-peer botnet architecture, enhancing its stealth, persistence, and data-collection capabilities. The P2P design complicates traditional C2 takedown efforts and signals a significant operational upgrade for one of Russia's most persistent espionage toolsets.

Read full article → https://www.bleepingcomputer.com/news/security/rus…

Relevance score: 88.0/100

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