Potential DNS Tunneling via NsLookupedit
This rule identifies a large number (15) of nslookup.exe executions with an explicit query type from the same host. This may indicate command and control activity utilizing the DNS protocol.
Rule type: threshold
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Command and Control
Version: 3
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
event.category:process and event.type:start and process.name:nslookup.exe and process.args:(-querytype=* or -qt=* or -q=* or -type=*)
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Command and Control
- ID: TA0011
- Reference URL: https://attack.mitre.org/tactics/TA0011/
-
Technique:
- Name: Application Layer Protocol
- ID: T1071
- Reference URL: https://attack.mitre.org/techniques/T1071/
-
Sub-technique:
- Name: DNS
- ID: T1071.004
- Reference URL: https://attack.mitre.org/techniques/T1071/004/