bigtime

GHSA-28hg-x9rg-9j9w

Malicious code in bigtime (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1.0`

## Source: kam193 (79fef30b8024966d3842e702f5f277b66d64b6a4a6af603c9eac0c720a4448d6)
The package contains hidden code to overwrite the built-in "open" function and exfiltrate every write to opened files. Exfiltration watcher is also attached to other files in user's home directory.


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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.


Campaign: 2026-08-bigtime


Reasons (based on the campaign):


 - files-exfiltration

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/ded261455707ad60e990d18a28e2d0bdcb9d340a/osv/malicious/pypi/bigtime/MAL-2026-13712.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/bigtime
- https://github.com/ossf/malicious-packages/blob/ded261455707ad60e990d18a28e2d0bdcb9d340a/osv/malicious/pypi/bigtime/MAL-2026-13712.json
- https://github.com/ossf/malicious-packages/blob/a45f663d9dabf0ad2877d1c31d8cc1f30744b49c/osv/malicious/pypi/bigtime/MAL-2026-13712.json
- https://pypi.org/project/bigtime/0.1.0
- https://github.com/advisories/GHSA-28hg-x9rg-9j9w

Compromised versions (1)

= 0.1.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.