Network Sniffing via Tcpdump
editNetwork Sniffing via Tcpdump
editThe Tcpdump program ran on a Linux host. Tcpdump is a network monitoring or packet sniffing tool that can be used to capture insecure credentials or data in motion. Sniffing can also be used to discover details of network services as a prelude to lateral movement or defense evasion.
Rule type: query
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Linux
- Threat Detection
- Credential Access
Version: 6 (version history)
Added (Elastic Stack release): 7.6.0
Last modified (Elastic Stack release): 7.11.2
Rule authors: Elastic
Rule license: Elastic License
Potential false positives
editSome normal use of this command may originate from server or network administrators engaged in network troubleshooting.
Rule query
editevent.category:process and event.type:(start or process_started) and process.name:tcpdump
Threat mapping
editFramework: MITRE ATT&CKTM
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Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
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Technique:
- Name: Network Sniffing
- ID: T1040
- Reference URL: https://attack.mitre.org/techniques/T1040/
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Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
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Technique:
- Name: Network Sniffing
- ID: T1040
- Reference URL: https://attack.mitre.org/techniques/T1040/
Rule version history
edit- Version 6 (7.11.2 release)
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- Formatting only
- Version 5 (7.10.0 release)
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- Formatting only
- Version 4 (7.9.1 release)
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- Formatting only
- Version 3 (7.9.0 release)
-
-
Updated query, changed from:
process.name:tcpdump and event.action:executed
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- Version 2 (7.7.0 release)
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-
Updated query, changed from:
process.name: tcpdump and event.action:executed
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