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TECHNIQUES
PRE-ATT&CK
Priority Definition Planning
Priority Definition Direction
Target Selection
Technical Information Gathering
People Information Gathering
Organizational Information Gathering
Technical Weakness Identification
People Weakness Identification
Organizational Weakness Identification
Adversary OPSEC
Establish & Maintain Infrastructure
Persona Development
Build Capabilities
Test Capabilities
Stage Capabilities
Enterprise
Initial Access
Phishing
Supply Chain Compromise
Valid Accounts
Execution
Command and Scripting Interpreter
Inter-Process Communication
Scheduled Task/Job
System Services
User Execution
Persistence
Account Manipulation
Boot or Logon Autostart Execution
Boot or Logon Initialization Scripts
Create Account
Create or Modify System Process
Event Triggered Execution
Hijack Execution Flow
Office Application Startup
Pre-OS Boot
Scheduled Task/Job
Server Software Component
Traffic Signaling
Valid Accounts
Privilege Escalation
Abuse Elevation Control Mechanism
Access Token Manipulation
Boot or Logon Autostart Execution
Boot or Logon Initialization Scripts
Create or Modify System Process
Event Triggered Execution
Hijack Execution Flow
Process Injection
Scheduled Task/Job
Valid Accounts
Defense Evasion
Abuse Elevation Control Mechanism
Access Token Manipulation
Execution Guardrails
File and Directory Permissions Modification
Hide Artifacts
Hijack Execution Flow
Impair Defenses
Indicator Removal on Host
Masquerading
Modify Authentication Process
Modify Cloud Compute Infrastructure
Obfuscated Files or Information
Pre-OS Boot
Process Injection
Signed Binary Proxy Execution
Signed Script Proxy Execution
Subvert Trust Controls
Traffic Signaling
Trusted Developer Utilities Proxy Execution
Use Alternate Authentication Material
Valid Accounts
Virtualization/Sandbox Evasion
Credential Access
Brute Force
Credentials from Password Stores
Input Capture
Man-in-the-Middle
Modify Authentication Process
OS Credential Dumping
Steal or Forge Kerberos Tickets
Unsecured Credentials
Discovery
Account Discovery
Permission Groups Discovery
Software Discovery
Virtualization/Sandbox Evasion
Lateral Movement
Remote Service Session Hijacking
Remote Services
Use Alternate Authentication Material
Collection
Archive Collected Data
Data from Information Repositories
Data Staged
Email Collection
Input Capture
Man-in-the-Middle
Command and Control
Application Layer Protocol
Data Encoding
Data Obfuscation
Dynamic Resolution
Encrypted Channel
Proxy
Traffic Signaling
Web Service
Exfiltration
Exfiltration Over Alternative Protocol
Exfiltration Over Other Network Medium
Exfiltration Over Physical Medium
Exfiltration Over Web Service
Impact
Data Manipulation
Defacement
Disk Wipe
Endpoint Denial of Service
Network Denial of Service
Mobile
Initial Access
Execution
Persistence
Privilege Escalation
Defense Evasion
Credential Access
Discovery
Lateral Movement
Collection
Command and Control
Exfiltration
Impact
Network Effects
Remote Service Effects
  1. Home
  2. Techniques
  3. Enterprise
  4. Permission Groups Discovery

Permission Groups Discovery

ID Name
T1069.001 Local Groups
T1069.002 Domain Groups
T1069.003 Cloud Groups

Adversaries may attempt to find group and permission settings. This information can help adversaries determine which user accounts and groups are available, the membership of users in particular groups, and which users and groups have elevated permissions.

ID: T1069
Sub-techniques:  T1069.001, T1069.002, T1069.003
Tactic: Discovery
Platforms: AWS, Azure, Azure AD, GCP, Linux, Office 365, SaaS, Windows, macOS
Permissions Required: User
Data Sources: API monitoring, Azure activity logs, Office 365 account logs, Process command-line parameters, Process monitoring
CAPEC ID: CAPEC-576
Contributors: Microsoft Threat Intelligence Center (MSTIC)
Version: 2.1
Created: 31 May 2017
Last Modified: 26 March 2020

Procedure Examples

Name Description
APT3

APT3 has a tool that can enumerate the permissions associated with Windows groups.[3]
MURKYTOP

MURKYTOP has the capability to retrieve information about groups.[2]
ShimRatReporter

ShimRatReporter gathered the local privileges for the infected host.[1]
TA505

TA505 has used TinyMet to enumerate members of privileged groups.[4] TA505 has also run net group /domain.[5]

Mitigations

This type of attack technique cannot be easily mitigated with preventive controls since it is based on the abuse of system features.

Detection

System and network discovery techniques normally occur throughout an operation as an adversary learns the environment. Data and events should not be viewed in isolation, but as part of a chain of behavior that could lead to other activities, such as Lateral Movement, based on the information obtained.

Monitor processes and command-line arguments for actions that could be taken to gather system and network information. Remote access tools with built-in features may interact directly with the Windows API to gather information. Information may also be acquired through Windows system management tools such as Windows Management Instrumentation and PowerShell.

References

  1. Yonathan Klijnsma. (2016, May 17). Mofang: A politically motivated information stealing adversary. Retrieved May 12, 2020.
  2. FireEye. (2018, March 16). Suspected Chinese Cyber Espionage Group (TEMP.Periscope) Targeting U.S. Engineering and Maritime Industries. Retrieved April 11, 2018.
  3. Symantec Security Response. (2016, September 6). Buckeye cyberespionage group shifts gaze from US to Hong Kong. Retrieved September 26, 2016.
  1. Frydrych, M. (2020, April 14). TA505 Continues to Infect Networks With SDBbot RAT. Retrieved May 29, 2020.
  2. Hiroaki, H. and Lu, L. (2019, June 12). Shifting Tactics: Breaking Down TA505 Group’s Use of HTML, RATs and Other Techniques in Latest Campaigns. Retrieved May 29, 2020.