alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Ponmocup HTTP Request (generic) M7"; flow:established,to_server; http.header; header_lowercase; content:"pragma|3a 20|no-cache|0d 0a|"; content:"cache-control|3a 20|no-cache|0d 0a|"; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; content:"7"; fast_pattern; startswith; http.cookie; content:"="; pcre:"/^[a-z0-9_-]{300,}/Ri"; http.accept; content:"*/*"; startswith; endswith; http.connection; content:"Close"; startswith; endswith; http.header_names; to_lowercase; pcre:"/\x0d\x0a(?:cache\-control|connection|pragma)\x0d\x0a(?:cache\-control|connection|pragma)\x0d\x0a(?:cache\-control|connection|pragma)\x0d\x0a/"; content:!"|0d 0a|accept-"; content:!"|0d 0a|referer|0d 0a|"; threshold:type limit, track by_src, count 1, seconds 600; reference:url,blog.Fox-IT.com/2015/12/02/ponmocup-a-giant-hiding-in-the-shadows; classtype:trojan-activity; sid:2022203; rev:7; metadata:created_at 2015_12_02, performance_impact Significant, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_01;)