Detectionmediumtest

Imports Registry Key From a File

Detects the import of the specified file to the registry with regedit.exe.

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Launch
Oddvar Moe, Sander Wiebing, oscd.communityCreated Wed Oct 07Updated Wed Mar 1373bba97f-a82d-42ce-b315-9182e76c57b1windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic
Detection Logic4 selectors
detection:
    selection_img:
        - Image|endswith: '\regedit.exe'
        - OriginalFileName: 'REGEDIT.EXE'
    selection_cli:
        CommandLine|contains:
            - ' /i '
            - ' /s '
            - '.reg'
    filter_1:
        CommandLine|contains|windash:
            - ' -e '
            - ' -a '
            - ' -c '
    filter_2:
        CommandLine|re: ':[^ \\]'     # to avoid intersection with ADS rule
    condition: all of selection_* and not all of filter_*
False Positives

Legitimate import of keys

Evernote

Rule Metadata
Rule ID
73bba97f-a82d-42ce-b315-9182e76c57b1
Status
test
Level
medium
Type
Detection
Created
Wed Oct 07
Modified
Wed Mar 13
Path
rules/windows/process_creation/proc_creation_win_regedit_import_keys.yml
Raw Tags
attack.persistenceattack.t1112attack.defense-evasion
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