Rule History

alert tcp any any -> any [139,445] (msg:"ET MALWARE Possible Duqu 2.0 Accessing SMB/SMB2 Named Pipe (Unicode) 4"; flow:to_server,established; content:"SMB"; offset:5; depth:3; content:"|00|{|00|6|00|C|00|5|00|1|00|A|00|4|00|D|00|B|00|-|00|E|00|3|00|D|00|E|00|-|00|4|00|F|00|E|00|B|00|-|00|8|00|6|00|A|00|4|00|-|00|3|00|2|00|F|00|7|00|F|00|8|00|E|00|7|00|3|00|B|00|9|00|9|00|}"; distance:0; nocase; reference:url,securelist.com/blog/research/70504/the-mystery-of-duqu-2-0-a-sophisticated-cyberespionage-actor-returns/; classtype:trojan-activity; sid:2021239; rev:1; metadata:created_at 2015_06_10, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)