Detectionhightest

Renamed AdFind Execution

Detects the use of a renamed Adfind.exe. AdFind continues to be seen across majority of breaches. It is used to domain trust discovery to plan out subsequent steps in the attack chain.

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Launch
Florian Roth (Nextron Systems)Created Sun Aug 21Updated Wed Feb 26df55196f-f105-44d3-a675-e9dfb6cc2f2bwindows
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_1:
        CommandLine|contains:
            - 'domainlist'
            - 'trustdmp'
            - 'dcmodes'
            - 'adinfo'
            - ' dclist '
            - 'computer_pwdnotreqd'
            - 'objectcategory='
            - '-subnets -f'
            - 'name="Domain Admins"'
            - '-sc u:'
            - 'domainncs'
            - 'dompol'
            - ' oudmp '
            - 'subnetdmp'
            - 'gpodmp'
            - 'fspdmp'
            - 'users_noexpire'
            - 'computers_active'
            - 'computers_pwdnotreqd'
    selection_2:
        Hashes|contains:
            - 'IMPHASH=BCA5675746D13A1F246E2DA3C2217492'
            - 'IMPHASH=53E117A96057EAF19C41380D0E87F1C2'
            - 'IMPHASH=d144de8117df2beceaba2201ad304764'
            - 'IMPHASH=12ce1c0f3f5837ecc18a3782408fa975'
            - 'IMPHASH=4fbf3f084fbbb2470b80b2013134df35'
            - 'IMPHASH=49b639b4acbecc49d72a01f357aa4930'
            - 'IMPHASH=680dad9e300346e05a85023965867201'
            - 'IMPHASH=21aa085d54992511b9f115355e468782'
    selection_3:
        OriginalFileName: 'AdFind.exe'
    filter:
        Image|endswith: '\AdFind.exe'
    condition: 1 of selection* and not filter
False Positives
Unknown

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

Testing & Validation

Regression Tests

by SigmaHQ Team
Positive Detection Test1 matchevtx

Microsoft-Windows-Sysmon

Rule Metadata
Rule ID
df55196f-f105-44d3-a675-e9dfb6cc2f2b
Status
test
Level
high
Type
Detection
Created
Sun Aug 21
Modified
Wed Feb 26
Path
rules/windows/process_creation/proc_creation_win_renamed_adfind.yml
Raw Tags
attack.discoveryattack.t1018attack.t1087.002attack.t1482attack.t1069.002
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