Sigma rule: CVE-2020-1048 Exploitation Attempt - Suspicious New Printer Ports - Registry

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-daab8468e1fe, updated 2024-03-25T00:00:00.000Z.

Rule

Title
CVE-2020-1048 Exploitation Attempt - Suspicious New Printer Ports - Registry
Status
test
Level
high
Author
EagleEye Team, Florian Roth (Nextron Systems), NVISO
Date
2020-05-13
Modified
2024-03-25
File
rules-emerging-threats/2020/Exploits/CVE-2020-1048/registry_set_exploit_cve_2020_1048_new_printer_port.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects changes to the "Ports" registry key with data that includes a Windows path or a file with a suspicious extension.
This could be an attempt to exploit CVE-2020-1048 - a Windows Print Spooler elevation of privilege vulnerability.

Log source

product
windows
category
registry_set

Detection

selection:
    TargetObject|contains: '\Microsoft\Windows NT\CurrentVersion\Ports'
    Details|contains:
        - '.bat'
        - '.com'
        - '.dll'
        - '.exe'
        - '.ps1'
        - '.vbe'
        - '.vbs'
        - 'C:'
condition: selection

False positives (as the rule lists them)

  • New printer port install on host

Tags

  • attack.persistence
  • attack.execution
  • attack.defense-impairment
  • attack.t1112
  • cve.2020-1048
  • 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/2020/Exploits/CVE-2020-1048/registry_set_exploit_cve_2020_1048_new_printer_port.yml

Sources and licences

  • SigmaHQ

    "CVE-2020-1048 Exploitation Attempt - Suspicious New Printer Ports - Registry" by EagleEye Team, Florian Roth (Nextron Systems), NVISO (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2020/Exploits/CVE-2020-1048/registry_set_exploit_cve_2020_1048_new_printer_port.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-2020-1048 Exploitation Attempt - Suspicious New Printer Ports - Registry",
entity page, dataset version ref-daab8468e1fe, updated 2024-03-25T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/7ec912f2-5175-4868-b811-ec13ad0f8567 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 7ec912f2-5175-4868-b811-ec13ad0f8567, 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.