securityonline.info 8/18/2026, 8:01:49 AM · external

Zscaler Uncovers Abyssos Modular RAT Targeting Windows Endpoints

Zscaler Uncovers Abyssos Modular RAT Targeting Windows Endpoints
CyberSIXT Evidence Panel
Primary Source zscaler.com

THE Abyssos modular RAT, recently uncovered by Zscaler ThreatLabz, targets Windows endpoints, enabling attackers to execute commands, steal data, and control infected systems. Key capabilities include remote administration, credential harvesting, and browser hijacking. The delivery vector is under investigation, but it likely involves phishing or exploiting vulnerabilities.

Upon execution, the malware initializes by checking for virtual environments to avoid detection and establishes a C2 communication using custom encrypted TCP protocols. Attackers can remotely operate infected systems and download plugins for enhanced functionalities like keylogging and privilege escalation. Security teams are encouraged to focus on behavioral detection strategies, monitor unusual network activity, and restrict user privileges to mitigate risks.

View Primary Source Via securityonline.info

Article by CyberSIXT