alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE HTran/SensLiceld.A Checkin 2 (unicode)"; flow:established,from_server; dsize:<120; content:"|5b00|S|00|E|00|R|00|V|00|E|00|R|005d00|c|00|o|00|n|00|n|00|e|00|c|00|t|00|i|00|o|00|n|002000|t|00|o|002000|"; depth:44; reference:url,www.secureworks.com/research/threats/htran/; reference:url,www.symantec.com/connect/blogs/truth-behind-shady-rat; reference:url,www.symantec.com/security_response/writeup.jsp?docid=2010-120716-4344-99&tabid=2; reference:url,www.securelist.com/en/descriptions/10120120/Trojan-Spy.Win32.Agent.bptu; classtype:command-and-control; sid:2013362; rev:7; metadata:created_at 2011_08_05, signature_severity Major, updated_at 2019_07_26;)