alert http any any -> any any (msg:"STEALER [PTsecurity] EncryptHub Exfiltration"; flow:established, to_server; http.method; content:"POST"; http.uri; content:"/?method=UploadFile&filename="; startswith; content:"&buildType="; distance:0; http.header_names; content:"|0d 0a|Api-Key|0d 0a|"; startswith; http.content_type; content:"multipart/form-data|3b| boundary="; startswith; content:!"Referer"; content:!"Accept"; http.request_body; content:"PK|03 04|"; content:")-(UTC-"; distance:40; content:"productkey.txt"; fast_pattern; within:24; reference:url, trendmicro.com/en_us/research/25/c/deep-dive-into-water-gamayun.html; reference:url, www.joesandbox.com/analysis/1565464/0/html; reference:url, rules.ptsecurity.com; classtype:trojan-activity; sid:10012533; rev:1;)