Detection rules › Sigma
Potential CVE-2023-27363 Exploitation - HTA File Creation By FoxitPDFReader
Detects suspicious ".hta" file creation in the startup folder by Foxit Reader. This can be an indication of CVE-2023-27363 exploitation.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 11: FileCreate |
Rule body
title: Potential CVE-2023-27363 Exploitation - HTA File Creation By FoxitPDFReader
id: 9cae055f-e1d2-4f81-b8a5-1986a68cdd84
status: test
description: Detects suspicious ".hta" file creation in the startup folder by Foxit Reader. This can be an indication of CVE-2023-27363 exploitation.
references:
- https://github.com/j00sean/SecBugs/tree/ff72d553f75d93e1a0652830c0f74a71b3f19c46/CVEs/CVE-2023-27363
- https://www.zerodayinitiative.com/advisories/ZDI-23-491/
- https://www.tarlogic.com/blog/cve-2023-27363-foxit-reader/
author: Gregory
date: 2023-10-11
tags:
- attack.persistence
- attack.t1505.001
- cve.2023-27363
- detection.emerging-threats
logsource:
product: windows
category: file_event
detection:
selection:
Image|endswith: '\FoxitPDFReader.exe'
TargetFilename|contains: '\Microsoft\Windows\Start Menu\Programs\Startup\'
TargetFilename|endswith: '.hta'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '\FoxitPDFReader.exe'
TargetFilename|contains: '\Microsoft\Windows\Start Menu\Programs\Startup\'
TargetFilename|endswith: '.hta'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Image | ends_with |
| field:"Image" kind:ends_with value:"\FoxitPDFReader.exe" |
TargetFilename | ends_with |
| field:"TargetFilename" kind:ends_with value:".hta" |
TargetFilename | match |
| field:"TargetFilename" kind:match value:"\Microsoft\Windows\Start Menu\Programs\Startup\" |