1200KM / sigma-rule
PCRE.NET Package Temp Files — Sigma Rule
Sigma rule 6e90ae7a-7cd3-473f-a035-4ebb72d961da. PCRE.NET Package Temp Files — Sigma Rule. Detects processes creating temp files related to PCRE.NET package
Rule metadata and linked tags
Author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research). Source status: test; severity: high. Source dates: 2020-10-29 / 2022-10-09.
{
"category": "file_event",
"product": "windows"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: dc5ea59da929e583b0d77b20831103f32d9e30a7af3bfcbe3dd6ee895a0c24ec
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: PCRE.NET Package Temp Files
id: 6e90ae7a-7cd3-473f-a035-4ebb72d961da
status: test
description: Detects processes creating temp files related to PCRE.NET package
references:
- https://twitter.com/rbmaslen/status/1321859647091970051
- https://twitter.com/tifkin_/status/1321916444557365248
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
date: 2020-10-29
modified: 2022-10-09
tags:
- attack.execution
- attack.t1059
logsource:
category: file_event
product: windows
detection:
selection:
TargetFilename|contains: \AppData\Local\Temp\ba9ea7344a4a5f591d6e5dc32a13494b\
condition: selection
falsepositives:
- Unknown
level: high
False positives
- Unknown
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.