Sigma rule: CVE-2021-1675 Print Spooler Exploitation Filename Pattern

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-2347a14de9a4, updated 2022-12-25T00:00:00.000Z.

Rule

Title
CVE-2021-1675 Print Spooler Exploitation Filename Pattern
Status
test
Level
critical
Author
Florian Roth (Nextron Systems)
Date
2021-06-29
Modified
2022-12-25
File
rules-emerging-threats/2021/Exploits/CVE-2021-1675/file_event_win_exploit_cve_2021_1675_printspooler.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the default filename used in PoC code against print spooler vulnerability CVE-2021-1675

Log source

product
windows
category
file_event

Detection

selection:
    TargetFilename|contains: 'C:\Windows\System32\spool\drivers\x64\3\old\1\123'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.execution
  • attack.privilege-escalation
  • attack.resource-development
  • attack.t1587
  • cve.2021-1675
  • 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/2021/Exploits/CVE-2021-1675/file_event_win_exploit_cve_2021_1675_printspooler.yml

Sources and licences

  • SigmaHQ

    "CVE-2021-1675 Print Spooler Exploitation Filename Pattern" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2021/Exploits/CVE-2021-1675/file_event_win_exploit_cve_2021_1675_printspooler.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: CVE-2021-1675 Print Spooler Exploitation Filename Pattern",
entity page, dataset version ref-2347a14de9a4, updated 2022-12-25T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/2131cfb3-8c12-45e8-8fa0-31f5924e9f07 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 2131cfb3-8c12-45e8-8fa0-31f5924e9f07, 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.