alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Fake Updates Page Inbound"; flow:established,to_client; http.response_body; content:"working|20|on|20|updates|2e 20|please|20|do|20|not|20|turn|20|off|20|your|20|computer"; nocase; fast_pattern; content:"installing|20|features|20|and|20|drivers"; nocase; content:"critical|20|security|20|update"; nocase; classtype:trojan-activity; sid:2069668; rev:1; metadata:affected_product Windows_Client, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_06_05, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, updated_at 2026_06_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise; target:dest_ip;)