Rule History

alert tcp any any -> any [139,445] (msg:"ET CURRENT_EVENTS [Fireeye] M.HackTool.SMB.Impacket-Obfuscation.[Service Names] M3"; content:"|ff 53 4d 42|"; offset:4; depth:4; content:"|57 00 69 00 6e 00 64 00 6f 00 77 00 73 00 20 00 4c 00 69 00 63 00 65 00 6e 00 73 00 65 00 20 00 4b 00 65 00 79 00 20 00 41 00 63 00 74 00 69 00 76 00 61 00 74 00 69 00 6f 00 6e|"; distance:0; fast_pattern; reference:url,github.com/fireeye/red_team_tool_countermeasures; classtype:trojan-activity; sid:2031302; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_08, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_08;)