WMI ActiveScriptEventConsumers Activity Via Scrcons.EXE DLL Load

calendar Oct 28, 2023 · attack.lateral_movement attack.privilege_escalation attack.persistence attack.t1546.003  ·
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Detects signs of the WMI script host process "scrcons.exe" loading scripting DLLs which could indicates WMI ActiveScriptEventConsumers EventConsumers activity.

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 1title: WMI ActiveScriptEventConsumers Activity Via Scrcons.EXE DLL Load
 2id: b439f47d-ef52-4b29-9a2f-57d8a96cb6b8
 3status: test
 4description: Detects signs of the WMI script host process "scrcons.exe" loading scripting DLLs which could indicates WMI ActiveScriptEventConsumers EventConsumers activity.
 5references:
 6    - https://twitter.com/HunterPlaybook/status/1301207718355759107
 7    - https://www.mdsec.co.uk/2020/09/i-like-to-move-it-windows-lateral-movement-part-1-wmi-event-subscription/
 8    - https://threathunterplaybook.com/hunts/windows/200902-RemoteWMIActiveScriptEventConsumers/notebook.html
 9author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
10date: 2020/09/02
11modified: 2023/02/22
12tags:
13    - attack.lateral_movement
14    - attack.privilege_escalation
15    - attack.persistence
16    - attack.t1546.003
17logsource:
18    category: image_load
19    product: windows
20detection:
21    selection:
22        Image|endswith: '\scrcons.exe'
23        ImageLoaded|endswith:
24            - '\vbscript.dll'
25            - '\wbemdisp.dll'
26            - '\wshom.ocx'
27            - '\scrrun.dll'
28    condition: selection
29falsepositives:
30    - Legitimate event consumers
31    - Dell computers on some versions register an event consumer that is known to cause false positives when brightness is changed by the corresponding keyboard button
32level: medium

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