CurlRAT virtualization check via /usr/lib/libvirtlog.so.0 marker file

Arnold Chan@slaz

•updated Sep 5, 2026•0•0•1

Detects the creation or modification of a specific file ('libvirtlog.so.0') located in '/usr/lib/' which acts as a gating mechanism for the curlRAT malware. The detection correlates this file event with processes commonly associated with system management that are executing with command line arguments indicative of malicious activity (e.g., 'reverse', 'pty').