[New Rule] Potential DNS Tunneling with Nslookup (#522)

* [New Rule] Potential DNS Tunneling with Nslookup * adjusted tags * Update rules/windows/command_and_control_dns_tunneling_nslookup.toml Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> * Update rules/windows/command_and_control_dns_tunneling_nslookup.toml Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> * ecs_version * Update rules/windows/command_and_control_dns_tunneling_nslookup.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * Update rules/windows/command_and_control_dns_tunneling_nslookup.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * relinted Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>
2020-12-07 20:16:17 +01:00
parent 6c37d5c6b4
commit b477255abe
1 changed files with 45 additions and 0 deletions
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+[metadata]
+creation_date = "2020/11/11"
+maturity = "production"
+updated_date = "2020/11/11"
+
+[rule]
+author = ["Elastic"]
+description = """
+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.
+"""
+from = "now-9m"
+index = ["winlogbeat-*", "logs-endpoint.events.*"]
+language = "kuery"
+license = "Elastic License"
+name = "Potential DNS Tunneling via NsLookup"
+references = ["https://unit42.paloaltonetworks.com/dns-tunneling-in-the-wild-overview-of-oilrigs-dns-tunneling/"]
+risk_score = 47
+rule_id = "3a59fc81-99d3-47ea-8cd6-d48d561fca20"
+severity = "medium"
+tags = ["Elastic", "Host", "Windows", "Threat Detection", "Command and Control"]
+type = "threshold"
+
+query = '''
+event.category:process and event.type:start and process.name:nslookup.exe and process.args:(-querytype=* or -qt=* or -q=* or -type=*)
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1071"
+name = "Application Layer Protocol"
+reference = "https://attack.mitre.org/techniques/T1071/"
+
+
+[rule.threat.tactic]
+id = "TA0011"
+name = "Command and Control"
+reference = "https://attack.mitre.org/tactics/TA0011/"
+
+[rule.threshold]
+field = "host.id"
+value = 15
+