PktMon.EXE Execution

Status: test
Severity: medium
Log source: category process_creation, product windows
Author: frack113
Source: github.com/SigmaHQ/sigma

Detects execution of PktMon, a tool that captures network packets.

Known false positives

Legitimate use

MITRE ATT&CK coverage

Tactic	Techniques
Credential Access	`T1040` Network Sniffing
Discovery	`T1040` Network Sniffing

Telemetry coverage

Provider	Record / event type
Sysmon	Event ID 1: Process creation

Rule body

title: PktMon.EXE Execution
id: f956c7c1-0f60-4bc5-b7d7-b39ab3c08908
status: test
description: Detects execution of PktMon, a tool that captures network packets.
references:
    - https://lolbas-project.github.io/lolbas/Binaries/Pktmon/
author: frack113
date: 2022-03-17
modified: 2023-06-23
tags:
    - attack.discovery
    - attack.credential-access
    - attack.t1040
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\pktmon.exe'
        - OriginalFileName: 'PktMon.exe'
    condition: selection
falsepositives:
    - Legitimate use
level: medium

Stages and Predicates

Stage 0: `condition`

selection

Stage 1: `selection`

selection:
    - Image|endswith: '\pktmon.exe'
    - OriginalFileName: 'PktMon.exe'

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`Image`	ends_with	`\pktmon.exe` corpus 2 (sigma 2)	`field:"Image" kind:ends_with value:"\pktmon.exe"`
`OriginalFileName`	eq	`PktMon.exe`	`field:"OriginalFileName" kind:eq value:"PktMon.exe"`

PktMon.EXE Execution

Known false positives

MITRE ATT&CK coverage

Telemetry coverage

Rule body

Stages and Predicates

Stage 0: condition

Stage 1: selection

Indicators

Stage 0: `condition`

Stage 1: `selection`