WMI Incoming Lateral Movement

 1[metadata]
 2creation_date = "2020/11/15"
 3integration = ["endpoint", "windows"]
 4maturity = "production"
 5updated_date = "2024/10/15"
 6min_stack_version = "8.14.0"
 7min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."
 8
 9[rule]
10author = ["Elastic"]
11description = """
12Identifies processes executed via Windows Management Instrumentation (WMI) on a remote host. This could be indicative of
13adversary lateral movement, but could be noisy if administrators use WMI to remotely manage hosts.
14"""
15from = "now-9m"
16index = [
17    "logs-endpoint.events.process-*",
18    "logs-endpoint.events.network-*",
19    "winlogbeat-*",
20    "logs-windows.sysmon_operational-*",
21]
22language = "eql"
23license = "Elastic License v2"
24name = "WMI Incoming Lateral Movement"
25risk_score = 47
26rule_id = "f3475224-b179-4f78-8877-c2bd64c26b88"
27severity = "medium"
28tags = [
29    "Domain: Endpoint",
30    "OS: Windows",
31    "Use Case: Threat Detection",
32    "Tactic: Lateral Movement",
33    "Data Source: Elastic Defend",
34    "Data Source: Sysmon",
35]
36type = "eql"
37
38query = '''
39sequence by host.id with maxspan = 2s
40
41 /* Accepted Incoming RPC connection by Winmgmt service */
42
43  [network where host.os.type == "windows" and process.name : "svchost.exe" and network.direction : ("incoming", "ingress") and
44   source.ip != "127.0.0.1" and source.ip != "::1" and source.port >= 49152 and destination.port >= 49152
45  ]
46
47  /* Excluding Common FPs Nessus and SCCM */
48
49  [process where host.os.type == "windows" and event.type == "start" and process.parent.name : "WmiPrvSE.exe" and
50   not (?process.Ext.token.integrity_level_name : "System" or ?winlog.event_data.IntegrityLevel : "System") and
51   not user.id : ("S-1-5-18", "S-1-5-19", "S-1-5-20") and
52   not process.executable :
53               ("?:\\Program Files\\HPWBEM\\Tools\\hpsum_swdiscovery.exe",
54                "?:\\Windows\\CCM\\Ccm32BitLauncher.exe",
55                "?:\\Windows\\System32\\wbem\\mofcomp.exe",
56                "?:\\Windows\\Microsoft.NET\\Framework*\\csc.exe",
57                "?:\\Windows\\System32\\powercfg.exe") and
58   not (process.executable : "?:\\Windows\\System32\\msiexec.exe" and process.args : "REBOOT=ReallySuppress") and
59   not (process.executable : "?:\\Windows\\System32\\inetsrv\\appcmd.exe" and process.args : "uninstall")
60   ]
61'''
62
63
64[[rule.threat]]
65framework = "MITRE ATT&CK"
66[[rule.threat.technique]]
67id = "T1021"
68name = "Remote Services"
69reference = "https://attack.mitre.org/techniques/T1021/"
70
71
72[rule.threat.tactic]
73id = "TA0008"
74name = "Lateral Movement"
75reference = "https://attack.mitre.org/tactics/TA0008/"
76[[rule.threat]]
77framework = "MITRE ATT&CK"
78[[rule.threat.technique]]
79id = "T1047"
80name = "Windows Management Instrumentation"
81reference = "https://attack.mitre.org/techniques/T1047/"
82
83
84[rule.threat.tactic]
85id = "TA0002"
86name = "Execution"
87reference = "https://attack.mitre.org/tactics/TA0002/"