Detectionmediumtest

PUA - Advanced Port Scanner Execution

Detects the use of Advanced Port Scanner.

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Launch
Nasreddine Bencherchali (Nextron Systems)Created Sat Dec 18Updated Tue Feb 0754773c5f-f1cc-4703-9126-2f797d96a69dwindows
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 Logic2 selectors
detection:
    selection_img:
        - Image|contains: '\advanced_port_scanner'
        - OriginalFileName|contains: 'advanced_port_scanner' # Covers also advanced_port_scanner_console.exe
        - Description|contains: 'Advanced Port Scanner'
    selection_cli:
        CommandLine|contains|all:
            - '/portable'
            - '/lng'
    condition: 1 of selection_*
False Positives

Legitimate administrative use

Tools with similar commandline (very rare)

Testing & Validation

Regression Tests

by SigmaHQ Team
Positive Detection Test1 matchevtx

Microsoft-Windows-Sysmon

Rule Metadata
Rule ID
54773c5f-f1cc-4703-9126-2f797d96a69d
Status
test
Level
medium
Type
Detection
Created
Sat Dec 18
Modified
Tue Feb 07
Path
rules/windows/process_creation/proc_creation_win_pua_advanced_port_scanner.yml
Raw Tags
attack.discoveryattack.t1046attack.t1135
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