""ET TROJAN CobaltStrike SMB P2P Default Msagent Named Pipe Interaction""

SID: 2027325

Revision: 5

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_05_07, deployment Perimeter, deployment Internal, malware_family Cobalt_Strike, performance_impact Low, signature_severity Major, updated_at 2023_08_24, reviewed_at 2023_08_24

Reference:

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: $HOME_NET

Destination Port: [139,445]

Flow: established,to_server

Contents:

  • Value: "SMB" Depth: 8

  • Value: "|5c 00|m|00|s|00|a|00|g|00|e|00|n|00|t|00|_|00|"

  • Value: !"|00 22 00 5c 00|m|00|s|00|a|00|g|00|e|00|n|00|t|00|_|00|"

Within:

PCRE:

Special Options:

  • nocase

  • fast_pattern

source