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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title: Monitor WMI "Win32_Process::Create" command execution by Office Applications.
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description: Initial execution of malicious document calls wmic to execute the file with regsvr32
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title: WMI Command Execution by Office Applications
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description: Initial execution of malicious document calls wmic Win32_Process::Create to execute the file with regsvr32
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references:
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- https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/
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- https://github.com/vadim-hunter/Detection-Ideas-Rules/blob/main/Threat%20Intelligence/The%20DFIR%20Report/20210329_Sodinokibi_(aka_REvil)_Ransomware.yaml
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author: "Idea by: Vadim Khrykov"
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- https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/
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- https://github.com/vadim-hunter/Detection-Ideas-Rules/blob/main/Threat%20Intelligence/The%20DFIR%20Report/20210329_Sodinokibi_(aka_REvil)_Ransomware.yaml
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author: "Vadim Khrykov (ThreatIntel), Cyb3rEng (Rule)"
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tags:
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- attack.t1204.002
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- attack.t1047
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- attack.t1218.010
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- attack.execution
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- attack.defence_evasion
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- attack.t1204.002
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- attack.t1047
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- attack.t1218.010
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- attack.execution
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- attack.defence_evasion
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status: experimental
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Date: 2021/23/8
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logsource:
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product: EndPoint Detection Logs
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category: process_creation
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detection:
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description: Add more office applications to the rule logic of choice
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#useful_information: Add more office applications to the rule logic of choice
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selection1:
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EventLog: EDR
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EventType: WMIExecution
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@@ -28,5 +28,5 @@ detection:
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- '*\powerpnt.exe'
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condition: selection1 AND selection2
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falsepositives:
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- ""
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level: high
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- Unknown
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level: high
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