Detectionmediumtest

Potential Persistence Attempt Via ErrorHandler.Cmd

Detects creation of a file named "ErrorHandler.cmd" in the "C:\WINDOWS\Setup\Scripts\" directory which could be used as a method of persistence The content of C:\WINDOWS\Setup\Scripts\ErrorHandler.cmd is read whenever some tools under C:\WINDOWS\System32\oobe\ (e.g. Setup.exe) fail to run for any reason.

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Nasreddine Bencherchali (Nextron Systems)Created Tue Aug 09Updated Mon Dec 1915904280-565c-4b73-9303-3291f964e7f9windows

Log Source

WindowsFile Event

ProductWindows← raw: windows

CategoryFile Event← raw: file_event

Events for file system activity including creation, modification, and deletion.

Detection Logic

detection:
    selection:
        TargetFilename|endswith: '\WINDOWS\Setup\Scripts\ErrorHandler.cmd'
    condition: selection

False Positives

Unknown

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

References

MITRE ATT&CK

Tactics

TA0003 · Persistence

Rule Metadata

Rule ID

15904280-565c-4b73-9303-3291f964e7f9

Status

test

Level

medium

Type

Detection

Created

Tue Aug 09

Modified

Mon Dec 19

Author

Nasreddine Bencherchali (Nextron Systems)

Path

rules/windows/file/file_event/file_event_win_errorhandler_persistence.yml

Raw Tags

attack.persistence

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