Sigma rule: Potential BearLPE Exploitation

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-afd69e3c1c32, updated 2023-01-26T00:00:00.000Z.

Rule

Title
Potential BearLPE Exploitation
Status
test
Level
high
Author
Olaf Hartong
Date
2019-05-22
Modified
2023-01-26
File
rules-emerging-threats/2019/Exploits/BearLPE-Exploit/proc_creation_win_exploit_other_bearlpe.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential exploitation of the BearLPE exploit using Task Scheduler ".job" import arbitrary DACL write\par

Log source

product
windows
category
process_creation

Detection

selection_img:
    - Image|endswith: '\schtasks.exe'
    - OriginalFileName: 'schtasks.exe'
selection_cli:
    CommandLine|contains|all:
        - '/change'
        - '/TN'
        - '/RU'
        - '/RP'
condition: all of selection*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.persistence
  • attack.execution
  • attack.privilege-escalation
  • attack.t1053.005
  • car.2013-08-001
  • detection.emerging-threats

MITRE ATT&CK ids this rule names

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-emerging-threats/2019/Exploits/BearLPE-Exploit/proc_creation_win_exploit_other_bearlpe.yml

Sources and licences

  • SigmaHQ

    "Potential BearLPE Exploitation" by Olaf Hartong (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2019/Exploits/BearLPE-Exploit/proc_creation_win_exploit_other_bearlpe.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: Potential BearLPE Exploitation",
entity page, dataset version ref-afd69e3c1c32, updated 2023-01-26T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/931b6802-d6a6-4267-9ffa-526f57f22aaf (accessed 2026-11-03).
Underlying source: SigmaHQ rule 931b6802-d6a6-4267-9ffa-526f57f22aaf, 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.