Updated Rule

Completed the following updates on the rule:
- Modified the title
- incremented 4 spaces for references and tags
- updated false positives
- updated author
- updated description in detection section.
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Cyb3rEng 2021-08-31 22:09:57 -06:00 committed by GitHub
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@ -1,15 +1,15 @@
title: Monitor LOLBins Process Creations by Office applications (Security Event Logs)
title: Created Executables and Script Files By Office Applications
description: This rule will monitor any office apps that spins up a new LOLBin process. This activity is pretty suspicious and should be investigated.
references:
- https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/
- https://github.com/vadim-hunter/Detection-Ideas-Rules/blob/main/Threat%20Intelligence/The%20DFIR%20Report/20210329_Sodinokibi_(aka_REvil)_Ransomware.yaml
author: "Idea by: Vadim Khrykov"
- https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/
- https://github.com/vadim-hunter/Detection-Ideas-Rules/blob/main/Threat%20Intelligence/The%20DFIR%20Report/20210329_Sodinokibi_(aka_REvil)_Ransomware.yaml
author: "Vadim Khrykov (ThreatIntel), Cyb3rEng (Rule)"
tags:
- attack.t1204.002
- attack.t1047
- attack.t1218.010
- attack.execution
- attack.defence_evasion
- attack.t1204.002
- attack.t1047
- attack.t1218.010
- attack.execution
- attack.defence_evasion
status: experimental
Date: 2021/23/8
logsource:
@ -17,7 +17,7 @@ logsource:
service: security
category: process_creation
detection:
description: add more LOLBins to the rules logic of your choice.
#useful_information: add more LOLBins to the rules logic of your choice.
selection1:
EventLog: security
EventID: 4688
@ -35,5 +35,5 @@ detection:
- powerpnt.exe
condition: selection1 AND selection2 AND selection3
falsepositives:
- ""
- Unknown
level: high