Rule History

alert tcp any any -> any [139,445] (msg:"ET CURRENT_EVENTS [Fireeye] M.HackTool.SMB.Impacket-Obfuscation.[Service Names] M1"; 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 55 00 70 00 64 00 61 00 74 00 65 00 20 00 43 00 6f 00 6e 00 74 00 72 00 6f 00 6c 00 20 00 53 00 65 00 72 00 76 00 69 00 63 00 65|"; distance:0; fast_pattern; reference:url,github.com/fireeye/red_team_tool_countermeasures; classtype:trojan-activity; sid:2031300; 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;)