Process Memory Dump via RdrLeakDiag.EXE — Sigma Rule

Rule metadata and linked tags

Author: Cedric MAURUGEON, Florian Roth (Nextron Systems), Swachchhanda Shrawan Poudel, Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: high. Source dates: 2021-09-24 / 2024-08-15.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 713ec98ec8f981e81c127354f21f7701034c696bfbd3fa7e8e9f417baad67178

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Process Memory Dump via RdrLeakDiag.EXE
id: edadb1e5-5919-4e4c-8462-a9e643b02c4b
related:
    - id: 6355a919-2e97-4285-a673-74645566340d
      type: obsolete
status: test
description: Detects the use of the Microsoft Windows Resource Leak Diagnostic tool "rdrleakdiag.exe" to dump process memory
references:
    - https://www.pureid.io/dumping-abusing-windows-credentials-part-1/
    - https://www.crowdstrike.com/blog/overwatch-exposes-aquatic-panda-in-possession-of-log-4-shell-exploit-tools/
    - https://lolbas-project.github.io/lolbas/Binaries/Rdrleakdiag/
    - https://twitter.com/0gtweet/status/1299071304805560321?s=21
    - https://news.sophos.com/en-us/2024/06/05/operation-crimson-palace-a-technical-deep-dive
author: Cedric MAURUGEON, Florian Roth (Nextron Systems), Swachchhanda Shrawan Poudel, Nasreddine Bencherchali (Nextron Systems)
date: 2021-09-24
modified: 2024-08-15
tags:
    - attack.credential-access
    - attack.t1003.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\rdrleakdiag.exe'
        - OriginalFileName: RdrLeakDiag.exe
    selection_cli_dump:
        CommandLine|contains|windash:
            - '/memdmp'
            - 'fullmemdmp'
    selection_cli_output_process:
        CommandLine|contains|windash:
            - ' /o ' # Output
            - ' /p ' # Process
    condition: all of selection_*
falsepositives:
    - Unlikely
level: high

Original YAML and metadata in JSON

False positives

• Unlikely

Source references

• https://www.pureid.io/dumping-abusing-windows-credentials-part-1/
• https://www.crowdstrike.com/blog/overwatch-exposes-aquatic-panda-in-possession-of-log-4-shell-exploit-tools/
• https://lolbas-project.github.io/lolbas/Binaries/Rdrleakdiag/
• https://twitter.com/0gtweet/status/1299071304805560321?s=21
• https://news.sophos.com/en-us/2024/06/05/operation-crimson-palace-a-technical-deep-dive