Statistical Model Detected C2 Beaconing Activity with High Confidence

 1[metadata]
 2creation_date = "2023/09/22"
 3integration = ["beaconing"]
 4maturity = "production"
 5min_stack_comments = "Beaconing package updates and support"
 6min_stack_version = "8.10.1"
 7updated_date = "2023/10/26"
 8
 9[rule]
10author = ["Elastic"]
11description = """
12A statistical model has identified command-and-control (C2) beaconing activity with high confidence. Beaconing can help
13attackers maintain stealthy communication with their C2 servers, receive instructions and payloads, exfiltrate data and
14maintain persistence in a network.
15"""
16from = "now-1h"
17index = ["ml_beaconing.all"]
18language = "kuery"
19license = "Elastic License v2"
20name = "Statistical Model Detected C2 Beaconing Activity with High Confidence"
21note = """## Setup
22
23The Beaconing integration must be enabled and related ML jobs configured for this rule to be effective. Please refer to this rule's references for more information.
24"""
25references = [
26    "https://www.elastic.co/guide/en/security/current/prebuilt-ml-jobs.html",
27    "https://docs.elastic.co/en/integrations/beaconing",
28    "https://www.elastic.co/security-labs/identifying-beaconing-malware-using-elastic"
29]
30risk_score = 21
31rule_id = "0ab319ef-92b8-4c7f-989b-5de93c852e93"
32severity = "low"
33tags = ["Domain: Network", "Use Case: C2 Beaconing Detection", "Tactic: Command and Control"]
34timestamp_override = "event.ingested"
35type = "query"
36
37query = '''
38beacon_stats.beaconing_score: 3
39'''
40
41
42[[rule.threat]]
43framework = "MITRE ATT&CK"
44[[rule.threat.technique]]
45id = "T1102"
46name = "Web Service"
47reference = "https://attack.mitre.org/techniques/T1102/"
48[[rule.threat.technique.subtechnique]]
49id = "T1102.002"
50name = "Bidirectional Communication"
51reference = "https://attack.mitre.org/techniques/T1102/002/"
52
53
54
55[rule.threat.tactic]
56id = "TA0011"
57name = "Command and Control"
58reference = "https://attack.mitre.org/tactics/TA0011/"

References

• Prebuilt job reference | Elastic Security Solution [8.11] | Elastic

  

  Prebuilt job referenceedit These anomaly detection jobs automatically detect file system and network anomalies on your hosts. They appear in the Anomaly Detection interface of the Elastic Security ...

  
  Read More

• Network Beaconing Identification

  Package to identify beaconing activity in your network events.

  
  Read More

• Identifying beaconing malware using Elastic — Elastic Security Labs

  

  In this blog, we walk users through identifying beaconing malware in their environment using our beaconing identification framework.

  
  Read More

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