Systems must be monitored for remote desktop logons.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-243492	SRG-OS-000480	AD.AU.0003	SV-243492r959010_rule	2024-09-13	3

Description
Remote Desktop activity for administration should be limited to specific administrators, and from limited management workstations. Monitoring for any Remote Desktop logins outside of expected activity can alert on suspicious behavior and anomalous account usage that could be indicative of potential malicious credential reuse.

ℹ️ Check
Verify Remote Desktop logins are being monitored. Event monitoring may be implemented through various methods including log aggregation and the use of monitoring tools. Monitor for the events listed below. If these events are not monitored, this is a finding. More advanced filtering is necessary to obtain the pertinent information than just looking for event IDs. Search for the event IDs listed with the following additional attributes: Logon Type = 10 (RemoteInteractive) Authentication Package Name = Negotiate Successful User Account Login (Subcategory: Logon) 4624 - An account was successfully logged on.

ℹ️ Check

Verify Remote Desktop logins are being monitored. Event monitoring may be implemented through various methods including log aggregation and the use of monitoring tools. Monitor for the events listed below. If these events are not monitored, this is a finding. More advanced filtering is necessary to obtain the pertinent information than just looking for event IDs. Search for the event IDs listed with the following additional attributes: Logon Type = 10 (RemoteInteractive) Authentication Package Name = Negotiate Successful User Account Login (Subcategory: Logon) 4624 - An account was successfully logged on.

✔️ Fix
More advanced filtering is necessary to obtain the pertinent information than just looking for event IDs. Search for the event IDs listed with the following additional attributes: Logon Type = 10 (RemoteInteractive) Authentication Package Name = Negotiate Successful User Account Login (Subcategory: Logon) 4624 - An account was successfully logged on. The "Remote Desktop Logon Detection" section of NSA's "Spotting the Adversary with Windows Event Log Monitoring" provides a sample query for filtering. https://www.iad.gov/iad/library/reports/spotting-the-adversary-with-windows-event-log-monitoring.cfm.

✔️ Fix

More advanced filtering is necessary to obtain the pertinent information than just looking for event IDs. Search for the event IDs listed with the following additional attributes: Logon Type = 10 (RemoteInteractive) Authentication Package Name = Negotiate Successful User Account Login (Subcategory: Logon) 4624 - An account was successfully logged on. The "Remote Desktop Logon Detection" section of NSA's "Spotting the Adversary with Windows Event Log Monitoring" provides a sample query for filtering. https://www.iad.gov/iad/library/reports/spotting-the-adversary-with-windows-event-log-monitoring.cfm.