Sigma rule: HackTool - Doppelanger LSASS Dumper Execution

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-77eaeaad8428, updated 2025-07-01T00:00:00.000Z.

Rule

Title: HackTool - Doppelanger LSASS Dumper Execution
Status: experimental
Level: high
Author: Swachchhanda Shrawan Poudel (Nextron Systems)
Date: 2025-07-01
File: rules/windows/process_creation/proc_creation_win_hktl_doppelganger.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the execution of the Doppelanger hacktool which is used to dump LSASS memory via process cloning while evading common detection methods

Log source

product: windows
category: process_creation

Detection

selection:
    - Image|endswith: '\Doppelganger.exe'
    - Hashes|contains:
          - 'IMPHASH=AB94D5217896ADCD765A06B2D52F0AEB'
          - 'IMPHASH=65F0EA61156EE0C2A35421926F0C7F78'
condition: selection

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1003.001

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_hktl_doppelganger.yml

Sources and licences

SigmaHQ
"HackTool - Doppelanger LSASS Dumper Execution" by Swachchhanda Shrawan Poudel (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_hktl_doppelganger.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: HackTool - Doppelanger LSASS Dumper Execution",
entity page, dataset version ref-77eaeaad8428, updated 2025-07-01T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/d474c8fe-bb69-4ea0-b7d9-f682b56d52d3 (accessed 2026-11-03).
Underlying source: SigmaHQ rule d474c8fe-bb69-4ea0-b7d9-f682b56d52d3, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.