MAL-2026-2840 Malicious code in sher-server-tool (PyPI)
Malicious package
Published
MAL-2026-2840 is a malicious package: sher-server-tool (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-2026-2840/ (Markdown: https://insights.sbomify.com/MAL-2026-2840/index.md)
- Package
- sher-server-tool
- Registry
- PyPI
What is MAL-2026-2840?
MAL-2026-2840 is a malicious package in sher-server-tool, published on 17 Apr 2026.
Official description
Starting the module activates a hardcoded telegram bot allowing remote code execution, data exfiltration, collecting webcam photos, clipboard data, etc.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-04-sher-net
Reasons (based on the campaign):
The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.
rat
spyware-like
What should I do about MAL-2026-2840?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.