Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
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CLI Versions
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Newest: 2.0.2
Translation Workspace
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Active Rule
Potential CVE-2023-36884 Exploitation - Share Access
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential CVE-2023-36884 Exploitation - Share Access
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Potential CVE-2023-36884 Exploitation - Share Access
id: 3df95076-9e78-4e63-accb-16699c3b74f8
status: test
description: Detects access to a file share with a naming schema seen being used during exploitation of CVE-2023-36884
references:
- https://blogs.blackberry.com/en/2023/07/romcom-targets-ukraine-nato-membership-talks-at-nato-summit
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-07-13
tags:
- attack.command-and-control
- cve.2023-36884
- detection.emerging-threats
logsource:
product: windows
service: security
definition: 'The advanced audit policy setting "Object Access > Audit File Share" must be configured for Success/Failure'
detection:
selection_eid:
EventID: 5140
selection_share_name:
ShareName|contains: '\MSHTML_C7\'
ShareName|re: '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
selection_share_path:
ShareLocalPath|contains: '\MSHTML_C7\'
ShareLocalPath|re: '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
condition: selection_eid and 1 of selection_share_*
falsepositives:
- Unknown
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2023/Exploits/CVE-2023-36884/win_security_exploit_cve_2023_36884_office_windows_html_rce_share_access_pattern.yml