alert tcp any any -> any any (msg:"REMOTE [PTsecurity] XWorm"; flow:established, to_server; dsize:276; stream_size:client, =, 277; stream_size:server, <, 3; content:"272|00|"; depth:4; fast_pattern; content:!"|7c 27 7c|"; content:!"|7c|yes"; nocase; content:!"|7c|win"; nocase; content:!"|7c|no"; nocase; reference:url, https://www.virustotal.com/gui/file/0ca479e1f8698b0ef5124d184309ce416a72407d0dc8cb017f02bb80f014a12d/detection; reference:url, rules.ptsecurity.com; classtype:trojan-activity; sid:10011368; rev:2;)