Detection rules › Sigma
Windows traffic capture abuse
Detects scenarios where an attacker use the native Windows sniffer in order to capture sensitive information or credentials.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Credential Access | T1040 Network Sniffing |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
Rule body yaml
title: Windows traffic capture abuse
description: Detects scenarios where an attacker use the native Windows sniffer in order to capture sensitive information or credentials.
references:
- https://bakerstreetforensics.com/2022/01/07/quickpcap-capturing-a-pcap-with-powershell/
tags:
- attack.credential_access
- attack.t1040 # Network Sniffing
author: mdecrevoisier
status: experimental
logsource:
product: windows
category: process_creation
detection:
selection:
NewProcessName|endswith: '\netsh.exe'
CommandLine|contains|all: # full command : 'netsh trace start capture=yes IPv4.Address=192.168.1.167 '
- netsh
- start
- capture
condition: selection
falsepositives:
- Administrator network troubleshooting
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
NewProcessName|endswith: '\netsh.exe'
CommandLine|contains|all:
- netsh
- start
- capture
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|
NewProcessName | ends_with |
|