CrashControl CrashDump Disabled

Hunt Hypothesis

Detects disabling the CrashDump per registry (as used by HermeticWiper)

Detection Rule

Sigma (Original)

title: CrashControl CrashDump Disabled
id: 2ff692c2-4594-41ec-8fcb-46587de769e0
status: test
description: Detects disabling the CrashDump per registry (as used by HermeticWiper)
references:
    - https://www.sentinelone.com/labs/hermetic-wiper-ukraine-under-attack/
author: Tobias Michalski (Nextron Systems)
date: 2022-02-24
modified: 2023-08-17
tags:
    - attack.persistence
    - attack.stealth
    - attack.defense-impairment
    - attack.t1564
    - attack.t1112
logsource:
    product: windows
    category: registry_set
detection:
    selection:
        TargetObject|contains: 'SYSTEM\CurrentControlSet\Control\CrashControl'
        Details: 'DWORD (0x00000000)'
    condition: selection
falsepositives:
    - Legitimate disabling of crashdumps
level: medium

KQL (Azure Sentinel)

imRegistry
| where RegistryKey contains "SYSTEM\\CurrentControlSet\\Control\\CrashControl" and RegistryValueData =~ "DWORD (0x00000000)"

KQL (Microsoft 365 Defender)

DeviceRegistryEvents
| where RegistryKey contains "SYSTEM\\CurrentControlSet\\Control\\CrashControl" and RegistryValueData =~ "DWORD (0x00000000)"

Required Data Sources

False Positive Guidance

• Legitimate disabling of crashdumps

MITRE ATT&CK Context

• Tactic: Persistence
• Technique: T1564 — T1564
• Technique: T1112 — T1112

References

• https://www.sentinelone.com/labs/hermetic-wiper-ukraine-under-attack/
• SigmaHQ Rule