sigmahighHunting

Renamed Gpg.EXE Execution

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

MITRE ATT&CK

impact

Detection Query

selection:
  OriginalFileName: gpg.exe
filter_main_img:
  Image|endswith:
    - \gpg.exe
    - \gpg2.exe
condition: selection and not 1 of filter_main_*

Author

Nasreddine Bencherchali (Nextron Systems), frack113

Created

2023-08-09

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://securelist.com/locked-out/68960/

Tags

attack.impactattack.t1486

Raw Content

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