Security Software Discovery via WMI (Sysmon)

Group by: _time, host
Source: github.com/anvilogic-forge/armory

Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions. This use case detects enumeration commands for antivirus software using WMI. Atomics Test T1518.001 Test #6

MITRE ATT&CK coverage

Tactic	Techniques
Discovery	`T1518.001` Software Discovery: Security Software Discovery

References

https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1518.001/T1518.001.md#atomic-test-6---security-software-discovery---av-discovery-via-wmi

Telemetry coverage

Provider	Record / event type
Sysmon	Event ID 1: Process creation

Rule body

id: '14971.22123'
title: Security Software Discovery via WMI
description: 'Adversaries may attempt to get a listing of security software, configurations,
  defensive tools, and sensors that are installed on a system or in a cloud environment.
  This may include things such as firewall rules and anti-virus. Adversaries may use
  the information from Security Software Discovery during automated discovery to shape
  follow-on behaviors, including whether or not the adversary fully infects the target
  and/or attempts specific actions. This use case detects enumeration commands for
  antivirus software using WMI. Atomics Test T1518.001 Test #6'
logic_format: Splunk
logic: '`get_endpoint_data` `get_endpoint_data_sysmon` ("EventCode=1" OR "<EventID>1<")
  (TERM(wmic) AND TERM(AntiVirusProduct)) | regex process="(?i)\s+AntiVirusProduct\s+"
  | table _time, host, user, process, process_*, parent_process, parent_process_*,
  user | bin span=1s | stats values(*) as * by _time, host '
techniques:
- discovery:software discovery:security software discovery
technique_id:
- T1518.001
data_category:
- Windows Sysmon
- Process command-line parameters
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1518.001/T1518.001.md#atomic-test-6---security-software-discovery---av-discovery-via-wmi

Stages and Predicates

Stage 1: `search`

`get_endpoint_data` `get_endpoint_data_sysmon` ("EventCode=1" OR "<EventID>1<") (TERM(wmic) AND TERM(AntiVirusProduct))

Stage 2: `regex`

| regex process="(?i)\s+AntiVirusProduct\s+"

Stage 3: `table`

| table _time, host, user, process, process_*, parent_process, parent_process_*, user

Stage 4: `bucket`

| bin span=1s

Stage 5: `stats`

| stats values(*) as * by _time, host

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`process`	regex_match	`"(?i)\s+AntiVirusProduct\s+"` corpus 3 (splunk 3)	`field:"CommandLine" kind:regex_match`

Search terms

These SPL tokens match against raw event text.

Stage	Term
1	`"EventCode=1"`
1	`"<EventID>1<"`
1	`wmic`
1	`AntiVirusProduct`