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System Owner/User Discovery (T1033)
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Carbanak+FIN7 |
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Step | ATT&CK Pattern |
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7.B.1
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Tactic Discovery (TA0007) |
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13.A.5
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Tactic Discovery (TA0007) |
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APT29 |
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Step | ATT&CK Pattern |
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4.C.2
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Tactic Discovery (TA0007) |
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11.A.6
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Tactic Discovery (TA0007) |
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13.C.1
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Tactic Discovery (TA0007) |
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15.A.1
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Tactic Discovery (TA0007) |
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16.B.1
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Tactic Discovery (TA0007) |
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Procedure
Checked that the username is not related to admin or a generic value (ex: user) using PowerShell
Criteria
powershell.exe executing a Get-WmiObject query for Win32_ComputerSystem
Footnotes
- PowerShell script block logging was enabled after the start of the evaluation so the detection is identified as a Detection Configuration Change.


Procedure
Enumerated the domain SID (from current user SID) using the ConvertSidToStringSid API
Criteria
powershell.exe executing the ConvertSidToStringSid API
Footnotes
- PowerShell script block logging was enabled after the start of the evaluation so the detection is identified as a Detection Configuration Change.

