win-update-helper-tool-v2 (PyPI) · Malicious Code
Affects win-update-helper-tool-v2Source GCVE Database
Malicious package : remove win-update-helper-tool-v2 and rotate any secrets on hosts that installed it.
Data as of 27 Oct 2026, 01:04 UTC
Malicious package
Published to PyPI · OSV MAL-2026-3246
What to do
Remove win-update-helper-tool-v2 from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| PyPIwin-update-helper-tool-v2 | Affected
| Fixed in– |
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Description
The win-update-helper-tool-v2 package (version 1.0.0) on PyPI contains malicious code that, when run as a module, silently controls the infected device via a Telegram bot. This includes executing remote commands, exfiltrating files, and establishing persistence through autorun mechanisms. The campaign associated with this malware is identified as 2026-05-system-update-tool and is categorized as a malicious campaign with clear intent to steal information and maintain control over compromised systems.