MAL-2026-13712

Dashboard / Malicious Package / MAL-2026-13712

MAL-2026-13712

Summary: Malicious code in bigtime (PyPI)

Details: Source: amazon-inspector (d14cc45326877547d5297956e4c2b5719122bcef140db0d7959e1b4da94e58d7) The package presents itself as a `time` module wrapper, but its `__init__.py` invokes `qwe900.init`, which performs two exfiltration behaviors on import. First, `_home_folders()` enumerates the installer's Desktop, Downloads, and Documents directories and `_find_all_files()` walks them; a background thread tails file contents and POSTs them to a Discord webhook whose URL is stored base64-encoded in `_WEBHOOK_B64` and decoded at import time. Second, `init()` replaces `builtins.open` process-wide with `_patched_open`, wrapping every returned file object in `_WatchedFile`; any subsequent `write()` on any file in the host process is copied to the same webhook. The embed title `New Token Captured` names the operator's intent to capture credentials and tokens flowing through the installer's own code. The base64-encoded destination and the `time`-wrapper cover story hide the exfiltration channel from casual source review. 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. Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-08-bigtime Reasons (based on the campaign): - files-exfiltration

References: https://bad-packages.kam193.eu/pypi/package/bigtime, https://pypi.org/project/bigtime/0.1.0/