Rokarolla HTML Phishing Overlay Injection via beralisvc.info C2

Ibrahim Saud@tektrix

•updated Jun 24, 2026•0•0•3

Detects network communication with the Rokarolla trojan's command and control (C2) server ('beralisvc.info') and subsequent injection of base64-encoded HTML phishing overlays into legitimate banking application UIs. The rule identifies C2 contact via network events and the presence of specific HTML content indicators ('html_base64', 'PCFEt0NUWVBFIGh0bWw+', 'com.imaginbank.app') in HTTP responses, suggesting an overlay attack.