Renamed Gpg.EXE Execution

Description

Detects the execution of a renamed "gpg.exe". Often used by ransomware and loaders to decrypt/encrypt data.

Query · sigma

selection:
  OriginalFileName: gpg.exe
filter_main_img:
  Image|endswith:
  - \gpg.exe
  - \gpg2.exe
condition: selection and not 1 of filter_main_*
Raw source Renamed Gpg.EXE Execution · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Renamed Gpg.EXE Execution
id: ec0722a3-eb5c-4a56-8ab2-bf6f20708592
status: test
description: Detects the execution of a renamed "gpg.exe". Often used by ransomware and loaders to decrypt/encrypt data.
references:
    - https://securelist.com/locked-out/68960/
author: Nasreddine Bencherchali (Nextron Systems), frack113
date: 2023-08-09
tags:
    - attack.impact
    - attack.t1486
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        OriginalFileName: 'gpg.exe'
    filter_main_img:
        Image|endswith:
            - '\gpg.exe'
            - '\gpg2.exe'
    condition: selection and not 1 of filter_main_*
level: high

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