QuickBuck – Ransomware Simulator

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Nextron Systems GmbH

The goal of this repository is to provide a simple, harmless way to check your AV’s protection on ransomware.

This tool simulates typical ransomware behaviour, such as:

  • Staging from a Word document macro
  • Deleting Volume Shadow Copies
  • Encrypting documents (embedded and dropped by the simulator into a new folder)
  • Dropping a ransomware note to the user’s desktop

The ransomware simulator takes no action that actually encrypts pre-existing files on the device, or deletes Volume Shadow Copies. However, any AV products looking for such behaviour should still hopefully trigger.

Each step, as listed above, can also be disabled via a command line flag. This allows you to check responses to later steps as well, even if an AV already detects earlier steps.

Usage

Ransomware Simulator

Usage:
ransomware-simulator [command]

Examples:
ransomware-simulator run

Available Commands:
help        Help about any command
run         Run ransomware simulator

Flags:
-h, --help   help for ransomware-simulator

Use "ransomware-simulator [command] --help" for more information about a command.

Run command:

Run Ransomware Simulator

Usage:
ransomware-simulator run [flags]

Flags:
    --dir string                     Directory where files that will be encrypted should be staged (default "./encrypted-files")
    --disable-file-encryption        Don't simulate document encryption
    --disable-macro-simulation       Don't simulate start from a macro by building the following process chain: winword.exe -> cmd.exe -> ransomware-simulator.exe
    --disable-note-drop              Don't drop pseudo ransomware note
    --disable-shadow-copy-deletion   Don't simulate volume shadow copy deletion
-h, --help                           help for run
    --note-location string           Ransomware note location (default "C:\\Users\\neo\\Desktop\\ransomware-simulator-note.txt")

Screenshots

Execution and Process Tree

GitHub

View Github