Sigma rule: Potential DLL Sideloading Of KeyScramblerIE.DLL Via KeyScrambler.EXE
A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ad49d49a27af, updated 2024-04-15T00:00:00.000Z.
Rule
- Title
- Potential DLL Sideloading Of KeyScramblerIE.DLL Via KeyScrambler.EXE
- Status
- test
- Level
- high
- Author
- Swachchhanda Shrawan Poudel
- Date
- 2024-04-15
- File
- rules/windows/image_load/image_load_side_load_keyscrambler.yml
- Commit
- ccbb0369507f796db0b0ae6854c8a2be471b9d84
Detects potential DLL side loading of "KeyScramblerIE.dll" by "KeyScrambler.exe".
Various threat actors and malware have been found side loading a masqueraded "KeyScramblerIE.dll" through "KeyScrambler.exe".
Log source
- product
- windows
- category
- image_load
Detection
selection:
Image|endswith:
- '\KeyScrambler.exe'
- '\KeyScramblerLogon.exe'
ImageLoaded|endswith: '\KeyScramblerIE.dll'
filter_main_legitimate_path:
Image|contains:
- 'C:\Program Files (x86)\KeyScrambler\'
- 'C:\Program Files\KeyScrambler\'
ImageLoaded|contains:
- 'C:\Program Files (x86)\KeyScrambler\'
- 'C:\Program Files\KeyScrambler\'
filter_main_signature:
Signature: 'QFX Software Corporation'
SignatureStatus: 'Valid'
condition: selection and not 1 of filter_main_*False positives (as the rule lists them)
- Unknown
Tags
- attack.persistence
- attack.privilege-escalation
- attack.execution
- attack.stealth
- attack.t1574.001
MITRE ATT&CK ids this rule names
Related rules
References
- https://thehackernews.com/2024/03/two-chinese-apt-groups-ramp-up-cyber.html
- https://csirt-cti.net/2024/02/01/stately-taurus-continued-new-information-on-cyberespionage-attacks-against-myanmar-military-junta/
- https://bazaar.abuse.ch/sample/5cb9876681f78d3ee8a01a5aaa5d38b05ec81edc48b09e3865b75c49a2187831/
- https://twitter.com/Max_Mal_/status/1775222576639291859
- https://twitter.com/DTCERT/status/1712785426895839339
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/image_load/image_load_side_load_keyscrambler.yml
Sources and licences
SigmaHQ
"Potential DLL Sideloading Of KeyScramblerIE.DLL Via KeyScrambler.EXE" by Swachchhanda Shrawan Poudel (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/image_load/image_load_side_load_keyscrambler.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Cite this page
Dragons Eye Ransomware Tracker, "Sigma rule: Potential DLL Sideloading Of KeyScramblerIE.DLL Via KeyScrambler.EXE",
entity page, dataset version ref-ad49d49a27af, updated 2024-04-15T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/d2451be2-b582-4e15-8701-4196ac180260 (accessed 2026-11-03).
Underlying source: SigmaHQ rule d2451be2-b582-4e15-8701-4196ac180260, 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.