Rule History

alert tcp $HOME_NET any -> $HOME_NET [139,445] (msg:"ET MALWARE Skeleton Key Filename in SMB Traffic (Unicode)"; flow:to_server,established; content:"|FF|SMB|a2|"; offset:4; depth:5; byte_test:1,&,0x80,6,relative; content:"|5c 00|o|00|l|00|e|00|.|00|d|00|l|00|l"; reference:url,www.secureworks.com/cyber-threat-intelligence/threats/skeleton-key-malware-analysis; classtype:trojan-activity; sid:2020178; rev:3; metadata:created_at 2015_01_13, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)