alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Injecter Checkin"; flow:established,to_server; content:"GET"; http_method; content:"mod="; http_uri; content:"&id="; http_uri; content:"&up="; http_uri; content:"User-Agent|3a| Mozilla/4.0 (compatible|3b| MSIE 6.0|3b| Windows NT 5.1|3b| SV1)"; http_header; nocase; classtype:trojan-activity; sid:2008349; rev:9; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)