Registry Entries For Azorult Malware

Hunt Hypothesis

Detects the presence of a registry key created during Azorult execution

Detection Rule

Sigma (Original)

title: Registry Entries For Azorult Malware
id: f7f9ab88-7557-4a69-b30e-0a8f91b3a0e7
status: test
description: Detects the presence of a registry key created during Azorult execution
references:
    - https://www.trendmicro.com/vinfo/us/threat-encyclopedia/malware/trojan.win32.azoruit.a
author: Trent Liffick
date: 2020-05-08
modified: 2021-11-27
tags:
    - attack.persistence
    - attack.execution
    - attack.defense-impairment
    - attack.t1112
logsource:
    product: windows
    category: registry_event
detection:
    selection:
        EventID:
            - 12
            - 13
        TargetObject|contains: 'SYSTEM\'
        TargetObject|endswith: '\services\localNETService'
    condition: selection
falsepositives:
    - Unknown
level: critical

KQL (Azure Sentinel)

imRegistry
| where RegistryKey endswith "SYSTEM*" and RegistryKey endswith "\\services\\localNETService"

KQL (Microsoft 365 Defender)

DeviceRegistryEvents
| where RegistryKey endswith "SYSTEM*" and RegistryKey endswith "\\services\\localNETService"

Required Data Sources

False Positive Guidance

• Unknown

MITRE ATT&CK Context

• Tactic: Persistence
• Tactic: Execution
• Technique: T1112 — T1112

References

• https://www.trendmicro.com/vinfo/us/threat-encyclopedia/malware/trojan.win32.azoruit.a
• SigmaHQ Rule