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Active Rule

Malicious Windows Script Components File Execution by TAEF Detection

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Malicious Windows Script Components File Execution by TAEF Detection

Using Splunk · Default · sigma-cli 2.0.2

Translation controls

Adjust the rule on the left, then regenerate when you want a fresh backend-native query.

BackendSplunkFormatDefaultVersion2.0.2

title: Malicious Windows Script Components File Execution by TAEF Detection
id: 634b00d5-ccc3-4a06-ae3b-0ec8444dd51b
status: test
description: |
  Windows Test Authoring and Execution Framework (TAEF) framework allows you to run automation by executing tests files written on different languages (C, C#, Microsoft COM Scripting interfaces
  Adversaries may execute malicious code (such as WSC file with VBScript, dll and so on) directly by running te.exe
references:
    - https://lolbas-project.github.io/lolbas/OtherMSBinaries/Te/
    - https://twitter.com/pabraeken/status/993298228840992768
    - https://learn.microsoft.com/en-us/windows-hardware/drivers/taef/
author: 'Agro (@agro_sev) oscd.community'
date: 2020-10-13
modified: 2021-11-27
tags:
    - attack.defense-evasion
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\te.exe'
        - ParentImage|endswith: '\te.exe'
        - OriginalFileName: '\te.exe'
    condition: selection
falsepositives:
    - It's not an uncommon to use te.exe directly to execute legal TAEF tests
level: low

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/process_creation/proc_creation_win_susp_use_of_te_bin.yml