Sigma rule: Exploit for CVE-2017-0261

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-79d67bf67890, updated 2021-11-27T00:00:00.000Z.

Rule

Title
Exploit for CVE-2017-0261
Status
test
Level
medium
Author
Florian Roth (Nextron Systems)
Date
2018-02-22
Modified
2021-11-27
File
rules-emerging-threats/2017/Exploits/CVE-2017-0261/proc_creation_win_exploit_cve_2017_0261.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Winword starting uncommon sub process FLTLDR.exe as used in exploits for CVE-2017-0261 and CVE-2017-0262

Log source

product
windows
category
process_creation

Detection

selection:
    ParentImage|endswith: '\WINWORD.EXE'
    Image|contains: '\FLTLDR.exe'
condition: selection

False positives (as the rule lists them)

  • Several false positives identified, check for suspicious file names or locations (e.g. Temp folders)

Tags

  • attack.execution
  • attack.t1203
  • attack.t1204.002
  • attack.initial-access
  • attack.t1566.001
  • cve.2017-0261
  • detection.emerging-threats

CVEs this rule names

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/2017/Exploits/CVE-2017-0261/proc_creation_win_exploit_cve_2017_0261.yml

Sources and licences

  • SigmaHQ

    "Exploit for CVE-2017-0261" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2017/Exploits/CVE-2017-0261/proc_creation_win_exploit_cve_2017_0261.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: Exploit for CVE-2017-0261",
entity page, dataset version ref-79d67bf67890, updated 2021-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/864403a1-36c9-40a2-a982-4c9a45f7d833 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 864403a1-36c9-40a2-a982-4c9a45f7d833, 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.