""ET USER_AGENTS WinRM User Agent Detected - Possible Lateral Movement""

SID: 2026850

Revision: 3

Class Type: bad-unknown

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2019_01_23, deployment Internal, performance_impact Low, signature_severity Minor, tag WinRM, updated_at 2023_04_14, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1021, mitre_technique_name Remote_Services

Reference:

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|0d 0a|User-Agent|3a 20|Microsoft|20|WinRM|20|Client|0d 0a|"

Within:

PCRE:

Special Options:

source