MAL-2026-2947

    Dashboard / Malicious Package / MAL-2026-2947

    MAL-2026-2947

    Published: 20 Apr 2026Last Modified: 9 Jul 2026

    Summary: Malicious code in moonbit-schema-utils (PyPI)

    Details: Source: kam193 (5fd7cc9fd6247802480f37b02a23faadb37c7fa5aded77358015c0861ab980e7) Campaign includes a chain of dependencies that finally exfiltrate sensitive environment variables to a hardcoded GitHub repository as exfiltration target, and in specific environments also start a reverse shell. It appears to be targeting specifically one GitHub project, where the front-end package was included in a PR. Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-04-moonbit-locale-compat Reasons (based on the campaign): - The malicious code is intentionally included in a dependency of the package - The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine. - exfiltration-env-variables

    References: https://github.com/zongen01/wechat-editor-studio/pull/2/changes#diff-d9555f91ec2cf16d2b3d23115fe3cf6600fa8b42627de82a81da48191c54d99c, https://bad-packages.kam193.eu/pypi/package/moonbit-schema-utils, https://github.com/DiamondFrontline/wechat-editor-studio/commit/3c61484843fbc7fbeb5e81149296aa7843570ee1

    Affected packages

    Package

    Name: moonbit-schema-utils

    Purl: pkg:pypi/moonbit-schema-utils

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.1.0
    1.1.1