System Owner/User Discovery (T1033)

View on ATT&CK

In Playbook

Technique & Subtechniques

  • System Owner/User Discovery

Associated Tactics

  • Discovery

Discovery (TA0007)

The adversary is trying to figure out your environment. Discovery consists of techniques an adversary may use to gain knowledge about the system and internal network. These techniques help adversaries observe the environment and orient themselves before deciding how to act. They also allow adversaries to explore what they can control and what’s around their entry point in order to discover how it could benefit their current objective. Native operating system tools are often used toward this post-compromise information-gathering objective.

View on ATT&CK

Procedure Examples

Description Source(s)
Cisco. (2023, March 7). Cisco IOS Security Command Reference: Commands S to Z . Retrieved July 13, 2022. show_ssh_users_cmd_cisco
US-CERT. (2018, April 20). Russian State-Sponsored Cyber Actors Targeting Network Infrastructure Devices. Retrieved October 19, 2020. US-CERT TA18-106A Network Infrastructure Devices 2018