Rule History

alert tcp any any -> any [139,445] (msg:"ET MALWARE Possible BlackEnergy Accessing SMB/SMB2 Named Pipe (Unicode)"; flow:to_server,established; content:"SMB"; offset:5; depth:3; content:"{|00|A|00|A|00|0|00|E|00|E|00|D|00|2|00|5|00|-|00|4|00|1|00|6|00|7|00|-|00|4|00|C|00|B|00|B|00|-|00|B|00|D|00|A|00|8|00|-|00|9|00|A|00|0|00|F|00|5|00|F|00|F|00|9|00|3|00|E|00|A|00|8|00|}"; distance:0; nocase; reference:url,cyberx-labs.com/wp-content/uploads/2015/05/BlackEnergy-CyberX-Report_27_May_2015_FINAL.pdf; classtype:trojan-activity; sid:2021180; rev:1; metadata:created_at 2015_06_04, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)