MAL-2025-191897 Malicious code in tgeffect (PyPI)
Malicious package
Published
MAL-2025-191897 is a malicious package: tgeffect (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-2025-191897/ (Markdown: https://insights.sbomify.com/MAL-2025-191897/index.md)
- Package
- tgeffect
- Registry
- PyPI
What is MAL-2025-191897?
MAL-2025-191897 is a malicious package in tgeffect, published on 22 Nov 2025.
Official description
Importing the module starts obfuscated code which then look for data related to some Telegram clients and attempt to exfiltrate them
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-11-tgeffect
Reasons (based on the campaign):
obfuscation
target:telegram
exfiltration-credentials
What should I do about MAL-2025-191897?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.