Detection rules › Splunk
Adfind Commands (Sysmon)
AdFind is a free command-line query tool that can be used for gathering information from Active Directory. In some instances Adversaries have renamed adfind in order to avoid detection. This use case looks for common commands of Adfind
MITRE ATT&CK coverage
References
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
Rule body
id: '6146.18230'
title: Adfind Commands
description: 'AdFind is a free command-line query tool that can be used for gathering
information from Active Directory. In some instances Adversaries have renamed adfind
in order to avoid detection. This use case looks for common commands of Adfind.
-- Threat Actor Association: APT29/Nobelium/Cozy Bear, BlackMatter, Conti, DarkSide,
FIN6, FIN7, FIN12, Karakurt, Mustang Panda (aka. Stately Taurus//Earth Preta/BRONZE
PRESIDENT/TA416/RedDelta), Traveling Spider, Wizard Spider, Yanluowang -- Software
Association: BazarLoader, Blackcat/ALPHV, Conti, DatopLoader, Dridex, Entropy, Lockbit,
Nefilim, Quantum, Sodinokibi/REvil, Trickbot, XingLocker'
logic_format: Splunk
logic: '`get_endpoint_data` `get_endpoint_data_sysmon` ("EventCode=1" OR "<EventID>1<")
("objectcategory" OR "trustdmp" OR ("member" "list")) | regex process="(?i)(objectcategory|trustdmp|member\s(.*)?-list)"
| table _time, host, user user, process, process_*, parent_* | bin span=1s | stats
values(*) as * by _time, host '
techniques:
- discovery:account discovery:domain account
- discovery:permission groups discovery:domain groups
- discovery:domain trust discovery
- discovery:system network configuration discovery
- discovery:remote system discovery
technique_id:
- T1087.002
- T1069.002
- T1482
- T1016
- T1018
data_category:
- Windows Sysmon
references:
- https://www.microsoft.com/security/blog/2020/12/18/analyzing-solorigate-the-compromised-dll-file-that-started-a-sophisticated-cyberattack-and-how-microsoft-defender-helps-protect/
Stages and Predicates
Stage 1: search
`get_endpoint_data` `get_endpoint_data_sysmon` ("EventCode=1" OR "<EventID>1<") ("objectcategory" OR "trustdmp" OR ("member" "list"))
Stage 2: regex
| regex process="(?i)(objectcategory|trustdmp|member\s(.*)?-list)"
Stage 3: table
| table _time, host, user user, process, process_*, parent_*
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 |
| field:"CommandLine" kind:regex_match |
Search terms
These SPL tokens match against raw event text.
| Stage | Term |
|---|---|
| 1 | "EventCode=1" |
| 1 | "<EventID>1<" |
| 1 | "objectcategory" |
| 1 | "trustdmp" |
| 1 | "member" |
| 1 | "list" |