Rule History

alert tcp any any -> any [139,445] (msg:"ET MALWARE Possible Duqu 2.0 Accessing SMB/SMB2 Named Pipe (Unicode) 3"; flow:to_server,established; content:"SMB"; offset:5; depth:3; content:"|00|{|00|0|00|7|00|1|00|0|00|8|00|8|00|0|00|F|00|-|00|3|00|A|00|5|00|5|00|-|00|4|00|A|00|2|00|D|00|-|00|A|00|A|00|6|00|7|00|-|00|1|00|1|00|2|00|3|00|3|00|8|00|4|00|F|00|D|00|8|00|5|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:2021238; rev:1; metadata:created_at 2015_06_10, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)