Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible Malicous Macro DL EXE Jul 01 2016 (userdir dotted quad)"; flow:established,to_server; http.uri; content:"/~"; depth:2; pcre:"/^\/\~[a-z]+\/(?:[a-z]+\/)*[a-z]+\.exe$/i"; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}(?:\x3a\d{1,5})?$/"; http.request_line; content:".exe HTTP/1."; fast_pattern; http.header_names; content:!"Referer|0d 0a|"; content:!"Cookie|0d 0a|"; reference:md5,a27bb6ac49f890bbdb97d939ccaa5956; classtype:trojan-activity; sid:2022940; rev:6; metadata:affected_product MS_Office, attack_target Client_Endpoint, created_at 2016_07_01, deployment Perimeter, malware_family MalDocGeneric, performance_impact Moderate, confidence Medium, signature_severity Major, tag MalDoc, updated_at 2024_04_08;)