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Detectionhightest

Change User Account Associated with the FAX Service

Detect change of the user account associated with the FAX service to avoid the escalation problem.

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François HubautCreated Sun Jul 17Updated Fri Dec 30e3fdf743-f05b-4051-990a-b66919be1743windows
Log Source
WindowsRegistry Set
ProductWindows← raw: windows
CategoryRegistry Set← raw: registry_set
Detection Logic
Detection Logic2 selectors
detection:
    selection:
        TargetObject: HKLM\System\CurrentControlSet\Services\Fax\ObjectName
    filter:
        Details|contains: NetworkService
    condition: selection and not filter
False Positives
Unknown

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

References
1
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twitter.com
2
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raw.githubusercontent.com
MITRE ATT&CK
Rule Metadata
Rule ID
e3fdf743-f05b-4051-990a-b66919be1743
Status
test
Level
high
Type
Detection
Created
Sun Jul 17
Modified
Fri Dec 30
Author
François Hubaut
Path
rules/windows/registry/registry_set/registry_set_fax_change_service_user.yml
Raw Tags
attack.persistenceattack.defense-evasionattack.t1112
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