[metadata]
creation_date = "2020/02/18"
deprecation_date = "2021/04/15"
maturity = "deprecated"
updated_date = "2021/04/15"
[rule]
author = ["Elastic"]
description = """
The 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.
"""
false_positives = [
"""
Some normal use of this command may originate from server or network administrators engaged in network
troubleshooting.
""",
]
from = "now-9m"
index = ["auditbeat-*", "logs-endpoint.events.*"]
language = "kuery"
license = "Elastic License v2"
name = "Network Sniffing via Tcpdump"
risk_score = 21
rule_id = "7a137d76-ce3d-48e2-947d-2747796a78c0"
severity = "low"
tags = ["Elastic", "Host", "Linux", "Threat Detection", "Credential Access"]
timestamp_override = "event.ingested"
type = "query"
query = '''
event.category:process and event.type:(start or process_started) and process.name:tcpdump
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1040"
name = "Network Sniffing"
reference = "https://attack.mitre.org/techniques/T1040/"
[rule.threat.tactic]
id = "TA0006"
name = "Credential Access"
reference = "https://attack.mitre.org/tactics/TA0006/"
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1040"
name = "Network Sniffing"
reference = "https://attack.mitre.org/techniques/T1040/"
[rule.threat.tactic]
id = "TA0007"
name = "Discovery"
reference = "https://attack.mitre.org/tactics/TA0007/"