Detection rules › Sigma
Windows native Pktmon sniffer abuse
Detects scenarios where an attacker use the Windows sniffer Pktmon in order to capture sensitive information or credentials.
Known false positives
- Administrator network troubleshooting
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Credential Access |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
| Security-Auditing | Event ID 4688: A new process has been created. |
Rule body
title: Windows native Pktmon sniffer abuse
description: Detects scenarios where an attacker use the Windows sniffer Pktmon in order to capture sensitive information or credentials.
references:
- https://github.com/mdecrevoisier/EVTX-to-MITRE-Attack/tree/master/TA0006-Credential%20Access/T1040-Traffic%20sniffing
- https://dev.to/qainsights/windows-network-sniffer-pktmon-2576
- https://docs.microsoft.com/en-us/windows-server/networking/technologies/pktmon/pktmon
tags:
- attack.credential_access
- attack.t1040 # Network Sniffing
author: mdecrevoisier
status: experimental
logsource:
product: windows
category: process_creation
detection:
selection:
NewProcessName|endswith: '\PktMon.exe'
CommandLine|contains|all: # full command : 'pktmon filter add -p 80'
- pktmon
- filter
- add
condition: selection
falsepositives:
- Administrator network troubleshooting
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
NewProcessName|endswith: '\PktMon.exe'
CommandLine|contains|all:
- pktmon
- filter
- add
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match |
NewProcessName | ends_with |
| field:"Image" kind:ends_with value:"\PktMon.exe" |