Rule History

alert http $HOME_NET any -> $EXTERNAL_NET [443,7080,8080,80] (msg:"ET MALWARE W32/Emotet.v4 Checkin"; flow:established,to_server; http.header; pcre:"/^Host\x3a\s*?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\x3a[03478]+/mi"; http.user_agent; content:"|20|MSIE|20|"; http.request_body; pcre:"/^[\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n]/s"; http.start; content:"POST / HTTP/1.1|0d 0a|User-Agent|3a 20|"; depth:29; fast_pattern; http.header_names; content:!"Accept"; content:!"Referer"; content:!"Content-Type"; content:!"Cookie"; content:!"TagId"; classtype:command-and-control; sid:2035047; rev:7; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_07_24, deployment Perimeter, malware_family Emotet, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_31;)