Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Windows 3.1 User-Agent Detected - Possible Malware or Non-Updated System"; flow:established,to_server; http.user_agent; content:"Windows 3.1"; fast_pattern; content:!"Cisco AnyConnect VPN Agent"; classtype:policy-violation; sid:2011694; rev:11; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_13;)