Detection rules › Sigma
Query Usage To Exfil Data
Detects usage of "query.exe" a system binary to exfil information such as "sessions" and "processes" for later use
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | No specific technique |
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: Query Usage To Exfil Data
id: 53ef0cef-fa24-4f25-a34a-6c72dfa2e6e2
status: test
description: Detects usage of "query.exe" a system binary to exfil information such as "sessions" and "processes" for later use
references:
- https://twitter.com/MichalKoczwara/status/1553634816016498688
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-08-01
modified: 2023-01-19
tags:
- attack.execution
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: ':\Windows\System32\query.exe'
CommandLine|contains:
- 'session >'
- 'process >'
condition: selection
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: ':\Windows\System32\query.exe'
CommandLine|contains:
- 'session >'
- 'process >'
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 |
|
Image | ends_with |
|