39 lines
1.1 KiB
YAML
39 lines
1.1 KiB
YAML
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title: T1021 DCOM InternetExplorer.Application Iertutil DLL Hijack
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author: Roberto Rodriguez @Cyb3rWard0g, Open Threat Research (OTR), wagga
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date: 2020/10/12
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description: Detects a threat actor creating a file named `iertutil.dll` in the `C:\Program
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Files\Internet Explorer\` directory over the network and loading it for a DCOM InternetExplorer
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DLL Hijack scenario.
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detection:
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SELECTION_1:
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EventID: 11
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SELECTION_2:
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Image: System
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SELECTION_3:
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TargetFilename: '*\Internet Explorer\iertutil.dll'
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SELECTION_4:
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EventID: 7
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SELECTION_5:
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Image: '*\Internet Explorer\iexplore.exe'
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SELECTION_6:
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ImageLoaded: '*\Internet Explorer\iertutil.dll'
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condition: ((SELECTION_1 and SELECTION_2 and SELECTION_3) or (SELECTION_4 and SELECTION_5
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and SELECTION_6))
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falsepositives:
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- Unknown
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id: e554f142-5cf3-4e55-ace9-a1b59e0def65
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level: critical
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logsource:
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product: windows
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service: sysmon
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modified: 2021/06/27
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references:
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- https://threathunterplaybook.com/notebooks/windows/08_lateral_movement/WIN-201009183000.html
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status: experimental
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tags:
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- attack.lateral_movement
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- attack.t1021.002
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- attack.t1021.003
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ruletype: SIGMA
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