Enumeration for Credentials in Registry

Hunt Hypothesis

Adversaries may search the Registry on compromised systems for insecurely stored credentials. The Windows Registry stores configuration information that can be used by the system or other programs. Ad

Detection Rule

Sigma (Original)

title: Enumeration for Credentials in Registry
id: e0b0c2ab-3d52-46d9-8cb7-049dc775fbd1
status: test
description: |
    Adversaries may search the Registry on compromised systems for insecurely stored credentials.
    The Windows Registry stores configuration information that can be used by the system or other programs.
    Adversaries may query the Registry looking for credentials and passwords that have been stored for use by other programs or services
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.002/T1552.002.md
author: frack113
date: 2021-12-20
modified: 2022-12-25
tags:
    - attack.credential-access
    - attack.t1552.002
logsource:
    category: process_creation
    product: windows
detection:
    reg:
        Image|endswith: '\reg.exe'
        CommandLine|contains|all:
            - ' query '
            - '/t '
            - 'REG_SZ'
            - '/s'
    hive:
        - CommandLine|contains|all:
              - '/f '
              - 'HKLM'
        - CommandLine|contains|all:
              - '/f '
              - 'HKCU'
        - CommandLine|contains: 'HKCU\Software\SimonTatham\PuTTY\Sessions'
    condition: reg and hive
falsepositives:
    - Unknown
level: medium

KQL (Azure Sentinel)

imProcessCreate
| where (TargetProcessName endswith "\\reg.exe" and (TargetProcessCommandLine contains " query " and TargetProcessCommandLine contains "/t " and TargetProcessCommandLine contains "REG_SZ" and TargetProcessCommandLine contains "/s")) and ((TargetProcessCommandLine contains "/f " and TargetProcessCommandLine contains "HKLM") or (TargetProcessCommandLine contains "/f " and TargetProcessCommandLine contains "HKCU") or TargetProcessCommandLine contains "HKCU\\Software\\SimonTatham\\PuTTY\\Sessions")

Required Data Sources

False Positive Guidance

• Unknown

MITRE ATT&CK Context

• Tactic: Credential Access
• Technique: T1552.002 — T1552.002

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.002/T1552.002.md
• SigmaHQ Rule