alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Unknown Generic Trojan Checkin"; flow:established,to_server; content:"unit_id="; http_uri; content:"&uv_id="; http_uri; content:"&uv_new="; http_uri; content:"&url="; http_uri; content:"&charset="; http_uri; content:"&hashval="; http_uri; content:"&app="; http_uri; content:"&lg="; http_uri; classtype:trojan-activity; sid:2013204; rev:3; metadata:created_at 2011_07_06, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)