Detectionhightest

DCOM InternetExplorer.Application Iertutil DLL Hijack - Security

Detects a threat actor creating a file named `iertutil.dll` in the `C:\Program Files\Internet Explorer\` directory over the network for a DCOM InternetExplorer DLL Hijack scenario.

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Launch
Roberto Rodriguez (Cyb3rWard0g), Open Threat Research (OTR)Created Mon Oct 12Updated Sat Nov 26c39f0c81-7348-4965-ab27-2fde35a1b641windows
Log Source
Windowssecurity
ProductWindows← raw: windows
Servicesecurity← raw: security
Detection Logic
Detection Logic2 selectors
detection:
    selection:
        EventID: 5145
        RelativeTargetName|endswith: '\Internet Explorer\iertutil.dll'
    filter:
        SubjectUserName|endswith: '$'
    condition: selection and not filter
False Positives
Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

Rule Metadata
Rule ID
c39f0c81-7348-4965-ab27-2fde35a1b641
Status
test
Level
high
Type
Detection
Created
Mon Oct 12
Modified
Sat Nov 26
Path
rules/windows/builtin/security/win_security_dcom_iertutil_dll_hijack.yml
Raw Tags
attack.lateral-movementattack.t1021.002attack.t1021.003
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