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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
HackTool - LittleCorporal Generated Maldoc Injection
Detects the process injection of a LittleCorporal generated Maldoc.
status test author Christian Burkard (Nextron Systems) id 7bdde3bf-2a42-4c39-aa31-a92b3e17afac
view Sigma YAML
title: HackTool - LittleCorporal Generated Maldoc Injection
id: 7bdde3bf-2a42-4c39-aa31-a92b3e17afac
status: test
description: Detects the process injection of a LittleCorporal generated Maldoc.
references:
    - https://github.com/connormcgarr/LittleCorporal
author: Christian Burkard (Nextron Systems)
date: 2021-08-09
modified: 2023-11-28
tags:
    - attack.execution
    - attack.privilege-escalation
    - attack.stealth
    - attack.t1204.002
    - attack.t1055.003
logsource:
    category: process_access
    product: windows
detection:
    selection:
        SourceImage|endswith: '\winword.exe'
        CallTrace|contains|all:
            - ':\Windows\Microsoft.NET\Framework64\v2.'
            - 'UNKNOWN'
    condition: selection
falsepositives:
    - Unknown
level: high
medium
Remote Thread Creation In Uncommon Target Image
Detects uncommon target processes for remote thread creation
status test author Florian Roth (Nextron Systems) id a1a144b7-5c9b-4853-a559-2172be8d4a03
view Sigma YAML
title: Remote Thread Creation In Uncommon Target Image
id: a1a144b7-5c9b-4853-a559-2172be8d4a03
related:
    - id: f016c716-754a-467f-a39e-63c06f773987
      type: obsolete
status: test
description: Detects uncommon target processes for remote thread creation
references:
    - https://web.archive.org/web/20220319032520/https://blog.redbluepurple.io/offensive-research/bypassing-injection-detection
author: Florian Roth (Nextron Systems)
date: 2022-03-16
modified: 2025-07-04
tags:
    - attack.privilege-escalation
    - attack.stealth
    - attack.t1055.003
logsource:
    product: windows
    category: create_remote_thread
detection:
    selection:
        TargetImage|endswith:
            - '\calc.exe'
            - '\calculator.exe'
            - '\mspaint.exe'
            - '\notepad.exe'
            - '\ping.exe'
            - '\sethc.exe'
            - '\spoolsv.exe'
            - '\wordpad.exe'
            - '\write.exe'
    filter_main_csrss:
        SourceImage: 'C:\Windows\System32\csrss.exe'
    filter_main_notepad:
        SourceImage:
            - 'C:\Windows\System32\explorer.exe'
            - 'C:\Windows\System32\OpenWith.exe'
        TargetImage: 'C:\Windows\System32\notepad.exe'
    filter_main_sethc:
        SourceImage: 'C:\Windows\System32\AtBroker.exe'
        TargetImage: 'C:\Windows\System32\Sethc.exe'
    filter_optional_aurora_1:
        StartFunction: 'EtwpNotificationThread'
    filter_optional_aurora_2:
        SourceImage|contains: 'unknown process'
    filter_optional_vmtoolsd:
        SourceImage: 'C:\Program Files\VMware\VMware Tools\vmtoolsd.exe'
        StartFunction: 'GetCommandLineW'
        TargetImage:
            - 'C:\Windows\System32\notepad.exe'
            - 'C:\Windows\System32\spoolsv.exe'
    filter_optional_xerox_pjems:
        SourceImage: 'C:\Program Files\Xerox\XeroxPrintExperience\CommonFiles\XeroxPrintJobEventManagerService.exe'
        StartFunction: 'LoadLibraryW'
        TargetImage: 'C:\Windows\System32\spoolsv.exe'
    condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
falsepositives:
    - Unknown
level: medium
Showing 1-2 of 2
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