alert http any any -> any any (msg:"BACKDOOR [PTsecurity] Trinper (APT Team46)"; flow:established, to_server; http.method; content:"POST"; http.header; content:"Accept|3a 20|"; content:"If-None-Match|3a 20|"; content:"X-"; content:!"Referer"; http.request_body; content:"mid="; startswith; content:"&mod="; distance:2; within:5; isdataat:!6, relative; threshold:type limit, track by_src, count 1, seconds 300; reference:url, rules.ptsecurity.com; classtype:trojan-activity; sid:10012123; rev:2;)