Denied Access To Remote Desktop

 Original Source: [Sigma source]
Title: Denied Access To Remote Desktop
Status: test
Description:This event is generated when an authenticated user who is not allowed to log on remotely attempts to connect to this computer through Remote Desktop. Often, this event can be generated by attackers when searching for available windows servers in the network.
References:
  -https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=4825
Author: Pushkarev Dmitry
Date: 2020-06-27
modified:2021-11-27
Tags:
  • -'attack.lateral-movement'
  • -'attack.t1021.001'
Logsource:
  • product: windows
  • service: security
Detection:
  selection:
    EventID: '4825'
  condition:selection
Falsepositives:
  -Valid user was not added to RDP group
Level: medium