43 lines
1.3 KiB
YAML
43 lines
1.3 KiB
YAML
title: RDP Registry Modification
|
|
author: Roberto Rodriguez @Cyb3rWard0g
|
|
date: 2019/09/12
|
|
description: Detects potential malicious modification of the property value of fDenyTSConnections
|
|
and UserAuthentication to enable remote desktop connections.
|
|
detection:
|
|
SELECTION_1:
|
|
EventID: 12
|
|
SELECTION_2:
|
|
EventID: 13
|
|
SELECTION_3:
|
|
EventID: 14
|
|
SELECTION_4:
|
|
TargetObject: '*\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp\UserAuthentication'
|
|
SELECTION_5:
|
|
TargetObject: '*\CurrentControlSet\Control\Terminal Server\fDenyTSConnections'
|
|
SELECTION_6:
|
|
Details: DWORD (0x00000000)
|
|
condition: ((SELECTION_1 or SELECTION_2 or SELECTION_3) and (SELECTION_4 or SELECTION_5)
|
|
and SELECTION_6)
|
|
falsepositives:
|
|
- Unknown
|
|
fields:
|
|
- ComputerName
|
|
- Image
|
|
- EventType
|
|
- TargetObject
|
|
id: 41904ebe-d56c-4904-b9ad-7a77bdf154b3
|
|
level: high
|
|
logsource:
|
|
category: registry_event
|
|
product: windows
|
|
modified: 2019/11/10
|
|
references:
|
|
- https://threathunterplaybook.com/notebooks/windows/05_defense_evasion/WIN-190407183310.html
|
|
status: experimental
|
|
tags:
|
|
- attack.defense_evasion
|
|
- attack.t1112
|
|
yml_filename: sysmon_rdp_registry_modification.yml
|
|
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/registry_event
|
|
|