Detectionhightest

Suspicious TSCON Start as SYSTEM

Detects a tscon.exe start as LOCAL SYSTEM

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Launch
Florian Roth (Nextron Systems)Created Sat Mar 17Updated Fri May 279847f263-4a81-424f-970c-875dab15b79bwindows
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 Logic1 selector
detection:
    selection:
        User|contains: # covers many language settings
            - 'AUTHORI'
            - 'AUTORI'
        Image|endswith: '\tscon.exe'
    condition: selection
False Positives
Unknown

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

MITRE ATT&CK

Other

attack.t1219.002
Rule Metadata
Rule ID
9847f263-4a81-424f-970c-875dab15b79b
Status
test
Level
high
Type
Detection
Created
Sat Mar 17
Modified
Fri May 27
Path
rules/windows/process_creation/proc_creation_win_tscon_localsystem.yml
Raw Tags
attack.command-and-controlattack.t1219.002
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