Detection rules › Splunk
CSVDE Export Active Directory (Sysmon)
Detects the administration tool csvde.exe attempting to export Active Directory data in an APT scenario
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
Rule body
id: '1028.1030'
title: CSVDE Export Active Directory
description: 'Detects the administration tool csvde.exe attempting to export Active
Directory data in an APT scenario. -- Threat Actor Association: Volt Typhoon'
logic_format: Splunk
logic: '`get_endpoint_data` `get_endpoint_data_sysmon` (TERM(EventCode=1) OR "<EventID>1<")
AND TERM(csvde.exe) AND TERM(-f) | table _time, host, user parent_process, parent_process_id,
parent_process_name, process_id, process_name, signature_id | bin span=1s | stats
values(*) as * by _time, host '
techniques:
- discovery:account discovery:local account
- discovery:account discovery:domain account
technique_id:
- T1087.001
- T1087.002
data_category:
- Windows Sysmon
references: null
Stages and Predicates
Stage 1: search
`get_endpoint_data` `get_endpoint_data_sysmon` (TERM(EventCode=1) OR "<EventID>1<") AND TERM(csvde.exe) AND TERM(-f)
Stage 2: table
| table _time, host, user parent_process, parent_process_id, parent_process_name, process_id, process_name, signature_id
Stage 3: bucket
| bin span=1s
Stage 4: stats
| stats values(*) as * by _time, host
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
EventCode | eq |
| field:"EventID" kind:eq value:"1" |
Search terms
These SPL tokens match against raw event text.
| Stage | Term |
|---|---|
| 1 | "<EventID>1<" |
| 1 | csvde.exe |
| 1 | "-f" |