""ET CURRENT_EVENTS [Fireeye] M.HackTool.SMB.Impacket-Obfuscation.[Service Names] M4""

SID: 2031303

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_08, deployment Perimeter, signature_severity Major, updated_at 2020_12_08

Reference:

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: any

Destination Port: [139,445]

Flow:

Contents:

  • Value: "|ff 53 4d 42|" Depth: 4 Offset: 4

  • Value: "|4f 00 66 00 66 00 69 00 63 00 65 00 20 00 33 00 36 00 35 00 20 00 50 00 72 00 6f 00 78 00 79|"

Within:

PCRE:

Special Options:

  • fast_pattern

source