Windows Get Local Admin with FindLocalAdminAccess
Description
The following analytic detects the execution of the Find-LocalAdminAccess
cmdlet using PowerShell Script Block Logging (EventCode=4104). This cmdlet is part of PowerView, a toolkit for Windows domain enumeration. Identifying the use of Find-LocalAdminAccess
is crucial as adversaries may use it to find machines where the current user has local administrator access, facilitating lateral movement or privilege escalation. If confirmed malicious, this activity could allow attackers to target and compromise additional systems within the network, significantly increasing their control and access to sensitive information.
- Type: TTP
-
Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
- Last Updated: 2024-05-22
- Author: Gowthamaraj Rajendran, Mauricio Velazco, Splunk
- ID: d2988160-3ce9-4310-b59d-905334920cdd
Annotations
ATT&CK
Kill Chain Phase
- Exploitation
NIST
- DE.CM
CIS20
- CIS 10
CVE
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`powershell` EventCode=4104 ScriptBlockText = "*Find-LocalAdminAccess*"
| stats count min(_time) as firstTime max(_time) as lastTime by EventCode ScriptBlockText Computer UserID
| rename Computer as dest, UserID as user
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `windows_get_local_admin_with_findlocaladminaccess_filter`
Macros
The SPL above uses the following Macros:
windows_get_local_admin_with_findlocaladminaccess_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
Required fields
List of fields required to use this analytic.
- _time
- EventCode
- Message
- Computer
- UserID
How To Implement
The following Hunting analytic requires PowerShell operational logs to be imported. Modify the powershell macro as needed to match the sourcetype or add index. This analytic is specific to 4104, or PowerShell Script Block Logging.
Known False Positives
Administrators may leverage PowerSploit tools for legitimate reasons, filter as needed.
Associated Analytic Story
RBA
Risk Score | Impact | Confidence | Message |
---|---|---|---|
25.0 | 50 | 50 | Suspicious PowerShell Find-LocalAdminAccess was identified on endpoint $dest$ by user $user$. |
The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). Initial Confidence and Impact is set by the analytic author.
Reference
- https://powersploit.readthedocs.io/en/latest/Recon/Find-LocalAdminAccess/
- https://attack.mitre.org/techniques/T1087/002/
- https://book.hacktricks.xyz/windows-hardening/basic-powershell-for-pentesters/powerview
Test Dataset
Replay any dataset to Splunk Enterprise by using our replay.py
tool or the UI.
Alternatively you can replay a dataset into a Splunk Attack Range
source | version: 2