Sigma rule: PCRE.NET Package Temp Files

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-badee0821e01, updated 2022-10-09T00:00:00.000Z.

Rule

Title: PCRE.NET Package Temp Files
Status: test
Level: high
Author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
Date: 2020-10-29
Modified: 2022-10-09
File: rules/windows/file/file_event/file_event_win_pcre_net_temp_file.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects processes creating temp files related to PCRE.NET package

Log source

product: windows
category: file_event

Detection

selection:
    TargetFilename|contains: \AppData\Local\Temp\ba9ea7344a4a5f591d6e5dc32a13494b\
condition: selection

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1059

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/windows/file/file_event/file_event_win_pcre_net_temp_file.yml

Sources and licences

SigmaHQ
"PCRE.NET Package Temp Files" by Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/file/file_event/file_event_win_pcre_net_temp_file.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: PCRE.NET Package Temp Files",
entity page, dataset version ref-badee0821e01, updated 2022-10-09T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/6e90ae7a-7cd3-473f-a035-4ebb72d961da (accessed 2026-11-03).
Underlying source: SigmaHQ rule 6e90ae7a-7cd3-473f-a035-4ebb72d961da, 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.