Cavalry Werewolf raids Russia’s public sector with trusted relationship attacks


BI.ZONE Threat Intelligence recorded Cavalry Werewolf activity from May to August 2025. In order to gain initial access, the attackers sent out targeted phishing emails disguising them as official correspondence from Kyrgyz government officials. The main targets of the attacks were Russian state agencies, as well as energy, mining, and manufacturing enterprises. Cavalry Werewolf relied on the malware of its own design: FoalShell reverse shells and StallionRAT (remote access trojans) controlled via Telegram.

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Source: BI.ZONE Threat Intelligence


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