Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Evil Winrm Py

Execute commands interactively on remote Windows machines using the WinRM protocol (just faster)

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

PERMISSION_SHELL_UNDECLARED

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

    Runs shell commands that the manifest or description does not mention.

    evil_winrm_py/evil_winrm_py.py, line 249 text that Invoke-Expression and add_script() rely on.

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Concern

    requests shell access. No manifest field names shell or command execution.

    PERMISSION_SHELL_UNDECLARED

    evil_winrm_py/evil_winrm_py.py, line 249

    text that Invoke-Expression and add_script() rely on.

    evil_winrm_py/evil_winrm_py.py, line 332

    ps.add_cmdlet("Invoke-Expression").add_parameter("Command", command)

    evil_winrm_py/evil_winrm_py.py, line 436

    ps.add_cmdlet("Invoke-Expression").add_parameter("Command", command)

    Show more

    evil_winrm_py/evil_winrm_py.py, line 1627

    ps.add_cmdlet("Invoke-Expression").add_parameter(

    evil_winrm_py/mcp.py, line 26

    "Use winrm_execute to run commands (via Invoke-Expression) and "

    evil_winrm_py/mcp.py, line 113

    # Invoke-Expression relies on, so build a structured cmdlet

    evil_winrm_py/mcp.py, line 118

    ps.add_cmdlet("Invoke-Expression").add_parameter("Command", command)

    docs/usage.md, line 138

    JEA endpoints commonly run in [`NoLanguage` mode](https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_language_modes), which only allows direc

  • Install and update

    Note

    The docs document an installer that pipes a download into a shell.

    INSTALL_DOCUMENTED_INSTALLER

    docs/install.md, line 61

    curl -LsSf https://astral.sh/uv/install.sh | sh

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_UNCONFIRMED

    .gitignore, line 130

    # Environments

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit bb5710eb268d. requests shell access. No manifest field names shell or command execution. The docs document an installer that pipes a download into a shell. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: bb5710eb268d6aa136117529f71a92ca821c0fda

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen