Registry Disable System Restore

Hunt Hypothesis

Detects the modification of the registry to disable a system restore on the computer

Detection Rule

Sigma (Original)

title: Registry Disable System Restore
id: 5de03871-5d46-4539-a82d-3aa992a69a83
related:
    - id: 7c06ab9b-b1d2-4ba9-b06e-09491ded20d9
      type: similar
status: test
description: Detects the modification of the registry to disable a system restore on the computer
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1490/T1490.md#atomic-test-9---disable-system-restore-through-registry
author: frack113
date: 2022-04-04
modified: 2023-08-17
tags:
    - attack.impact
    - attack.t1490
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|contains:
            - '\Policies\Microsoft\Windows NT\SystemRestore'
            - '\Microsoft\Windows NT\CurrentVersion\SystemRestore'
        TargetObject|endswith:
            - DisableConfig
            - DisableSR
        Details: 'DWORD (0x00000001)'
    condition: selection
falsepositives:
    - Unknown
level: high
regression_tests_path: regression_data/rules/windows/registry/registry_set/registry_set_disable_system_restore/info.yml
simulation:
    - type: atomic-red-team
      name: Disable System Restore Through Registry
      technique: T1490
      atomic_guid: 66e647d1-8741-4e43-b7c1-334760c2047f

KQL (Azure Sentinel)

imRegistry
| where (RegistryKey contains "\\Policies\\Microsoft\\Windows NT\\SystemRestore" or RegistryKey contains "\\Microsoft\\Windows NT\\CurrentVersion\\SystemRestore") and (RegistryKey endswith "DisableConfig" or RegistryKey endswith "DisableSR") and RegistryValueData =~ "DWORD (0x00000001)"

KQL (Microsoft 365 Defender)

DeviceRegistryEvents
| where (RegistryKey contains "\\Policies\\Microsoft\\Windows NT\\SystemRestore" or RegistryKey contains "\\Microsoft\\Windows NT\\CurrentVersion\\SystemRestore") and (RegistryKey endswith "DisableConfig" or RegistryKey endswith "DisableSR") and RegistryValueData =~ "DWORD (0x00000001)"

Required Data Sources

False Positive Guidance

• Unknown

MITRE ATT&CK Context

• Tactic: Impact
• Technique: T1490 — T1490

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1490/T1490.md#atomic-test-9---disable-system-restore-through-registry
• SigmaHQ Rule