MAL-2026-2017 Malicious code in thisismytest (PyPI)
Malicious package
Published
MAL-2026-2017 is a malicious package: thisismytest (PyPI). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-2017/ (Markdown: https://insights.sbomify.com/MAL-2026-2017/index.md)
- Package
- thisismytest
- Registry
- PyPI
What is MAL-2026-2017?
MAL-2026-2017 is a malicious package in thisismytest, published on 21 Mar 2026.
Official description
During installation, the package downloads and runs a remote executable, which is identified as a backdoor. It connects with a remote server and executes basic commands
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-03-thisismytest
Reasons (based on the campaign):
malware
Downloads and executes a remote executable.
backdoor
The OpenSSF Package Analysis project identified 'thisismytest' @ 4.0.0 (pypi) as malicious.
It is considered malicious because:
- The package executes one or more commands associated with malicious behavior.
What should I do about MAL-2026-2017?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.