(registered 2026-05-12, last updated 2026-05-12)

Media type name: application

Media subtype name: vnd.vimina.vma

Required parameters: N/A

Optional parameters: charset,version

Encoding considerations: binary

Security considerations: This media type defines an executable payload. VMA files contain automation scripts that are interpreted and executed by the Vimina runtime environment.

1. Script Execution

VMA scripts can control mouse and keyboard input, which may pose security risks if scripts from untrusted sources are executed.

2. Recommended Practices

2.1. Review scripts before execution

Before executing scripts from external sources, reviewers should examine the script for:

Unauthorized input injection, keystroke capture, or credential harvesting
Unexpected or unauthorized execution of external programs
Unauthorized file system access, modification, or exfiltration
Unintended network communication or data transmission
Attempts to modify system settings or escalate privileges

2.2. Use sandboxing for untrusted scripts

2.3. Limit script permissions when possible

2.4. Log all script actions for audit purposes

3. Dangerous Operations

The following operations should require user confirmation:

Sending input to password fields
Executing external programs
Modifying system settings

Interoperability considerations: This media type uses a text-based script format fully interpreted by the Vimina runtime. As a vendor-specific type intended primarily for the Vimina desktop automation tool, interoperability is governed by the Vimina implementation and its specification. The format does not depend on external encoding schemes or platform-specific binary structures.

Published specification:

https://github.com/Sunse666/Vimina/blob/main/docs/VMA-Specification.md
https://sunse666.github.io/Vimina-docs/

Applications which use this media: Vimina desktop automation tool

Fragment identifier considerations: N/A

Restrictions on usage: N/A

Additional information:

1. Deprecated alias names for this type: N/A
2. Magic number(s): N/A
3. File extension(s): .vma
4. Macintosh file type code: N/A
5. Object Identifiers: N/A

Person to contact for further information:

1. Name: Sunny Lynn
2. Email: Sunse666&163.com

Intended usage: COMMON

Author/Change controller: Sunny Lynn