Justin Ibarra
65 lines
1.8 KiB
TOML
65 lines
1.8 KiB
TOML
[metadata]
|
|
creation_date = "2020/07/06"
|
|
maturity = "production"
|
|
updated_date = "2021/05/10"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Cobalt Strike is a threat emulation platform commonly modified and used by adversaries to conduct network attack and
|
|
exploitation campaigns. This rule detects a network activity algorithm leveraged by Cobalt Strike implant beacons for
|
|
command and control.
|
|
"""
|
|
false_positives = [
|
|
"""
|
|
This rule should be tailored to either exclude systems, as sources or destinations, in which this behavior is
|
|
expected.
|
|
""",
|
|
]
|
|
index = ["packetbeat-*"]
|
|
language = "lucene"
|
|
license = "Elastic License v2"
|
|
name = "Cobalt Strike Command and Control Beacon"
|
|
note = """## Threat intel
|
|
|
|
This activity has been observed in FIN7 campaigns."""
|
|
references = [
|
|
"https://blog.morphisec.com/fin7-attacks-restaurant-industry",
|
|
"https://www.fireeye.com/blog/threat-research/2017/04/fin7-phishing-lnk.html",
|
|
]
|
|
risk_score = 73
|
|
rule_id = "cf53f532-9cc9-445a-9ae7-fced307ec53c"
|
|
severity = "high"
|
|
tags = ["Elastic", "Network", "Threat Detection", "Command and Control"]
|
|
timestamp_override = "event.ingested"
|
|
type = "query"
|
|
|
|
query = '''
|
|
event.category:(network OR network_traffic) AND type:(tls OR http) AND network.transport:tcp AND destination.domain:/[a-z]{3}.stage.[0-9]{8}\..*/
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1071"
|
|
name = "Application Layer Protocol"
|
|
reference = "https://attack.mitre.org/techniques/T1071/"
|
|
|
|
[[rule.threat.technique]]
|
|
id = "T1568"
|
|
name = "Dynamic Resolution"
|
|
reference = "https://attack.mitre.org/techniques/T1568/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1568.002"
|
|
name = "Domain Generation Algorithms"
|
|
reference = "https://attack.mitre.org/techniques/T1568/002/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0011"
|
|
name = "Command and Control"
|
|
reference = "https://attack.mitre.org/tactics/TA0011/"
|
|
|