Detection rules › Sigma

RDP BlueeKeep connection closed (CVE-2019-0708)

Status
experimental
Severity
high
Log source
product windows, category rdp
Author
mdecrevoisier
Source
github.com/mdecrevoisier/SIGMA-detection-rules

Detects scenarios where an attacker attempts to exploit the BlueKeep vulnerability.

MITRE ATT&CK coverage

Rule body yaml

title: RDP BlueeKeep connection closed (CVE-2019-0708)
description: Detects scenarios where an attacker attempts to exploit the BlueKeep vulnerability.
references:
- https://github.com/sbousseaden/Slides/blob/master/Windows%20DFIR%20Events.pdf
- https://corelight.com/blog/2019/05/23/how-to-use-corelight-and-zeek-logs-to-mitigate-rds-rdp-vulnerabilities
- https://www.cyberark.com/resources/threat-research-blog/explain-like-i-m-5-remote-desktop-protocol-rdp
tags:
- attack.lateral_movement
- attack.t1021.001 # remote services: RDP
- attack.privilege_escalation
- attack.t1021.001 # exploit for privilege escalation
author: mdecrevoisier
status: experimental
logsource:
  product: windows
  category: rdp
detection:
  selection:
    EventID: 148 # Channel X has been closed between the server and the client on transport tunnel: Y.
    Channel: Microsoft-Windows-RemoteDesktopServices-RdpCoreTS/Operational
    ChannelName: "ms_t120"
  condition: selection
falsepositives:
- none
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
  EventID: 148
  Channel: Microsoft-Windows-RemoteDesktopServices-RdpCoreTS/Operational
  ChannelName: "ms_t120"

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
ChannelNameeq
  • ms_t120