Emerging Threatmediumtest
Potential CVE-2023-36874 Exploitation - Uncommon Report.Wer Location
Detects the creation of a "Report.wer" file in an uncommon folder structure. This could be a sign of potential exploitation of CVE-2023-36874.
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Launch
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
WindowsFile Event
ProductWindows← raw: windows
CategoryFile Event← raw: file_event
Events for file system activity including creation, modification, and deletion.
Detection Logic
Detection Logic2 selectors
detection:
selection:
TargetFilename|contains: ':\ProgramData\Microsoft\Windows\WER\ReportArchive\'
TargetFilename|endswith: '\Report.wer'
filter_main_locations:
TargetFilename|contains:
# Note: This list is non exhaustive. Use this as a start for hunting for suspicious folder report
- '\ReportArchive\AppCrash_'
- '\ReportArchive\AppHang_'
- '\ReportArchive\Critical_'
- '\ReportArchive\Kernel_'
- '\ReportArchive\NonCritical_'
condition: selection and not 1 of filter_main_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Other
cve.2023-36874detection.emerging-threats
Rule Metadata
Rule ID
92389a99-5215-43b0-a09f-e334453b2ed3
Status
test
Level
medium
Type
Emerging Threat
Created
Wed Aug 23
Path
rules-emerging-threats/2023/Exploits/CVE-2023-36874/file_event_win_exploit_cve_2023_36874_report_creation.yml
Raw Tags
attack.executioncve.2023-36874detection.emerging-threats