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Sigma detection rules

2 rules indexed · SIEM-agnostic detection content
Sigma is the open generic signature format for SIEM systems. Each rule below converts to native syntax for Splunk, Elastic, Sentinel, and other SIEMs. Expand any rule to see its raw YAML.

Detection rules

2 shown of 2
high
Potential MSTSC Shadowing Activity
Detects RDP session hijacking by using MSTSC shadowing
status test author Florian Roth (Nextron Systems) id 6ba5a05f-b095-4f0a-8654-b825f4f16334
view Sigma YAML
title: Potential MSTSC Shadowing Activity
id: 6ba5a05f-b095-4f0a-8654-b825f4f16334
status: test
description: Detects RDP session hijacking by using MSTSC shadowing
references:
    - https://twitter.com/kmkz_security/status/1220694202301976576
    - https://github.com/kmkz/Pentesting/blob/47592e5e160d3b86c2024f09ef04ceb87d204995/Post-Exploitation-Cheat-Sheet
author: Florian Roth (Nextron Systems)
date: 2020-01-24
modified: 2023-02-05
tags:
    - attack.lateral-movement
    - attack.t1563.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - 'noconsentprompt'
            - 'shadow:'
    condition: selection
falsepositives:
    - Unknown
level: high
high
Suspicious RDP Redirect Using TSCON
Detects a suspicious RDP session redirect using tscon.exe
status test author Florian Roth (Nextron Systems) id f72aa3e8-49f9-4c7d-bd74-f8ab84ff9bbb
view Sigma YAML
title: Suspicious RDP Redirect Using TSCON
id: f72aa3e8-49f9-4c7d-bd74-f8ab84ff9bbb
status: test
description: Detects a suspicious RDP session redirect using tscon.exe
references:
    - http://www.korznikov.com/2017/03/0-day-or-feature-privilege-escalation.html
    - https://medium.com/@networksecurity/rdp-hijacking-how-to-hijack-rds-and-remoteapp-sessions-transparently-to-move-through-an-da2a1e73a5f6
    - https://www.hackingarticles.in/rdp-session-hijacking-with-tscon/
author: Florian Roth (Nextron Systems)
date: 2018-03-17
modified: 2023-05-16
tags:
    - attack.lateral-movement
    - attack.t1563.002
    - attack.t1021.001
    - car.2013-07-002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains: ' /dest:rdp-tcp#'
    condition: selection
falsepositives:
    - Unknown
level: high
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