Cavalry Werewolf: Sophisticated Threat Group Targets Russian Agencies
Cybersecurity experts have warned about a sophisticated threat group, dubbed Cavalry Werewolf, active since May 2025. The group has targeted Russian state agencies and key industries, using custom malware and advanced tactics.
Cavalry Werewolf has been exploiting email communications to gain initial access to target systems. They impersonated Kyrgyz government officials to send spear-phishing emails laced with custom-built malware, FoalShell and StallionRAT. These malicious tools allow attackers to execute arbitrary commands, load additional files, and exfiltrate data from compromised hosts.
The group's activities have been detected in Russia, with potential targets in other countries like Tajikistan and Middle Eastern nations. Between May and August 2025, they focused on energy, mining, and manufacturing sectors. Organizations can bolster their email security by employing dedicated filtering and threat detection services to block unwanted messages and protect communications.
Cavalry Werewolf has demonstrated the use of Telegram for command-and-control over compromised systems. To counter such threats, organizations are advised to invest in threat intelligence platforms for proactive risk management and incident response, enabling them to understand and defend against relevant threats.
Cavalry Werewolf poses a significant threat to organizations in targeted sectors and regions. With their advanced tactics and custom malware, they highlight the importance of robust email security measures and proactive threat intelligence. As the group's activities continue to evolve, understanding and mitigating these threats will be crucial for effective cyber defense.
