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Convert indexed Sigma rules into analyst-ready detections.
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CLI Versions
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Newest: 2.0.2
Translation Workspace
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Active Rule
CVE-2021-31979 CVE-2021-33771 Exploits
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
CVE-2021-31979 CVE-2021-33771 Exploits
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: CVE-2021-31979 CVE-2021-33771 Exploits
id: 32b5db62-cb5f-4266-9639-0fa48376ac00
status: test
description: Detects patterns as noticed in exploitation of Windows CVE-2021-31979 CVE-2021-33771 vulnerability and DevilsTongue malware by threat group Sourgum
references:
- https://www.microsoft.com/security/blog/2021/07/15/protecting-customers-from-a-private-sector-offensive-actor-using-0-day-exploits-and-devilstongue-malware/
- https://citizenlab.ca/2021/07/hooking-candiru-another-mercenary-spyware-vendor-comes-into-focus/
author: Sittikorn S, frack113
date: 2021-07-16
modified: 2023-08-17
tags:
- attack.initial-access
- attack.execution
- attack.credential-access
- attack.t1566
- attack.t1203
- cve.2021-33771
- cve.2021-31979
- detection.emerging-threats
# - threat_group.Sourgum
logsource:
product: windows
category: registry_set
detection:
selection:
TargetObject|endswith:
- CLSID\{CF4CC405-E2C5-4DDD-B3CE-5E7582D8C9FA}\InprocServer32\(Default)
- CLSID\{7C857801-7381-11CF-884D-00AA004B2E24}\InProcServer32\(Default)
filter:
Details|endswith:
- system32\wbem\wmiutils.dll
- system32\wbem\wbemsvc.dll
condition: selection and not filter
falsepositives:
- Unlikely
level: critical
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2021/Exploits/CVE-2021-33771/registry_set_cve_2021_31979_cve_2021_33771_exploits.yml