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Convert indexed Sigma rules into analyst-ready detections.

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Newest: 1.3.3

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Active Rule

HackTool - CrackMapExec File Indicators

pySigma version

Backend

Format

Target Profile

Splunk

Splunk through pysigma-backend-splunk.

Format Mode

Default

Default pySigma output mode for this backend.

Conversion Output

HackTool - CrackMapExec File Indicators

Using Splunk · Default · pySigma 1.3.3

Translation controls

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

BackendSplunkFormatDefaultVersion1.3.3

title: HackTool - CrackMapExec File Indicators
id: 736ffa74-5f6f-44ca-94ef-1c0df4f51d2a
related:
    - id: 9433ff9c-5d3f-4269-99f8-95fc826ea489
      type: obsolete
status: test
description: Detects file creation events with filename patterns used by CrackMapExec.
references:
    - https://github.com/byt3bl33d3r/CrackMapExec/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-03-11
modified: 2024-06-27
tags:
    - attack.credential-access
    - attack.t1003.001
logsource:
    product: windows
    category: file_event
detection:
    selection_path:
        TargetFilename|startswith: 'C:\Windows\Temp\' # The disk extension is hardcoded in the tool.
    selection_names_str:
        TargetFilename|endswith:
            - '\temp.ps1' # https://github.com/byt3bl33d3r/CrackMapExec/blob/3c3e412193cb6d3237abe90c543e5d995bfa4447/cme/modules/keepass_trigger.py#L42C41-L42C68
            - '\msol.ps1' # https://github.com/byt3bl33d3r/CrackMapExec/blob/3c3e412193cb6d3237abe90c543e5d995bfa4447/cme/modules/msol.py#L48C98-L48C106
    selection_names_re:
        - TargetFilename|re: '\\[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\.txt$' # https://github.com/byt3bl33d3r/CrackMapExec/blob/3c3e412193cb6d3237abe90c543e5d995bfa4447/cme/protocols/wmi/wmiexec.py#L86
        - TargetFilename|re: '\\[a-zA-Z]{8}\.tmp$' # https://github.com/byt3bl33d3r/CrackMapExec/blob/3c3e412193cb6d3237abe90c543e5d995bfa4447/cme/protocols/smb/atexec.py#L145C19-L146
    condition: selection_path and 1 of selection_names_*
falsepositives:
    - Unknown
level: high

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/file/file_event/file_event_win_hktl_crackmapexec_indicators.yml