Sigma rule: Potential CVE-2023-36884 Exploitation Dropped File

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-42f16a738dd1, updated 2023-07-13T00:00:00.000Z.

Rule

Title
Potential CVE-2023-36884 Exploitation Dropped File
Status
test
Level
medium
Author
Nasreddine Bencherchali (Nextron Systems), X__Junior (Nextron Systems)
Date
2023-07-13
File
rules-emerging-threats/2023/Exploits/CVE-2023-36884/file_event_win_exploit_cve_2023_36884_office_windows_html_rce_file_patterns.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a specific file being created in the recent folder of Office. These files have been seen being dropped during potential exploitations of CVE-2023-36884

Log source

product
windows
category
file_event

Detection

selection:
    TargetFilename|startswith: 'C:\Users\'
    TargetFilename|contains: '\AppData\Roaming\Microsoft\Office\Recent\'
    TargetFilename|endswith: '\file001.url'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.persistence
  • cve.2023-36884
  • detection.emerging-threats
  • attack.stealth

CVEs 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/2023/Exploits/CVE-2023-36884/file_event_win_exploit_cve_2023_36884_office_windows_html_rce_file_patterns.yml

Sources and licences

  • SigmaHQ

    "Potential CVE-2023-36884 Exploitation Dropped File" by Nasreddine Bencherchali (Nextron Systems), X__Junior (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2023/Exploits/CVE-2023-36884/file_event_win_exploit_cve_2023_36884_office_windows_html_rce_file_patterns.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 CVE-2023-36884 Exploitation Dropped File",
entity page, dataset version ref-42f16a738dd1, updated 2023-07-13T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/8023d3a2-dcdc-44da-8fa9-5c7906e55b38 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 8023d3a2-dcdc-44da-8fa9-5c7906e55b38, 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.