Installation of Security Support Provider

 1[metadata]
 2creation_date = "2020/11/18"
 3integration = ["endpoint", "windows"]
 4maturity = "production"
 5updated_date = "2024/05/21"
 6
 7[rule]
 8author = ["Elastic"]
 9description = """
10Identifies registry modifications related to the Windows Security Support Provider (SSP) configuration. Adversaries may
11abuse this to establish persistence in an environment.
12"""
13from = "now-9m"
14index = ["winlogbeat-*", "logs-endpoint.events.registry-*", "logs-windows.sysmon_operational-*", "endgame-*"]
15language = "eql"
16license = "Elastic License v2"
17name = "Installation of Security Support Provider"
18risk_score = 47
19rule_id = "e86da94d-e54b-4fb5-b96c-cecff87e8787"
20setup = """## Setup
21
22If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2,
23events will not define `event.ingested` and default fallback for EQL rules was not added until version 8.2.
24Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
25`event.ingested` to @timestamp.
26For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
27"""
28severity = "medium"
29tags = [
30    "Domain: Endpoint",
31    "OS: Windows",
32    "Use Case: Threat Detection",
33    "Tactic: Persistence",
34    "Tactic: Defense Evasion",
35    "Data Source: Elastic Endgame",
36    "Data Source: Elastic Defend",
37    "Data Source: Sysmon",
38]
39timestamp_override = "event.ingested"
40type = "eql"
41
42query = '''
43registry where host.os.type == "windows" and
44   registry.path : (
45      "HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Security Packages*",
46      "HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\OSConfig\\Security Packages*",
47      "\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Security Packages*",
48      "\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Control\\Lsa\\OSConfig\\Security Packages*"
49   ) and
50   not process.executable : ("C:\\Windows\\System32\\msiexec.exe", "C:\\Windows\\SysWOW64\\msiexec.exe")
51'''
52
53
54[[rule.threat]]
55framework = "MITRE ATT&CK"
56[[rule.threat.technique]]
57id = "T1547"
58name = "Boot or Logon Autostart Execution"
59reference = "https://attack.mitre.org/techniques/T1547/"
60[[rule.threat.technique.subtechnique]]
61id = "T1547.005"
62name = "Security Support Provider"
63reference = "https://attack.mitre.org/techniques/T1547/005/"
64
65
66
67[rule.threat.tactic]
68id = "TA0003"
69name = "Persistence"
70reference = "https://attack.mitre.org/tactics/TA0003/"
71[[rule.threat]]
72framework = "MITRE ATT&CK"
73[[rule.threat.technique]]
74id = "T1112"
75name = "Modify Registry"
76reference = "https://attack.mitre.org/techniques/T1112/"
77
78
79[rule.threat.tactic]
80id = "TA0005"
81name = "Defense Evasion"
82reference = "https://attack.mitre.org/tactics/TA0005/"