Detection rules › Sigma
Network Reconnaissance Activity
Detects a set of suspicious network related commands often used in recon stages
Known false positives
- False positives depend on scripts and administrative tools used in the monitored environment
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery |
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: Network Reconnaissance Activity
id: e6313acd-208c-44fc-a0ff-db85d572e90e
status: test
description: Detects a set of suspicious network related commands often used in recon stages
references:
- https://thedfirreport.com/2022/02/07/qbot-likes-to-move-it-move-it/
author: Florian Roth (Nextron Systems)
date: 2022-02-07
tags:
- attack.discovery
- attack.t1087
- attack.t1082
- car.2016-03-001
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains|all:
- 'nslookup'
- '_ldap._tcp.dc._msdcs.'
condition: selection
falsepositives:
- False positives depend on scripts and administrative tools used in the monitored environment
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
CommandLine|contains|all:
- 'nslookup'
- '_ldap._tcp.dc._msdcs.'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match |