GCVE-110-OSM-2026-11042

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose. Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities. Campaign: GENERIC-standard-pypi-install-pentest Reasons (based on the campaign): - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk. - The package overrides the install command in setup.py to execute malicious code during installation. Judge assessment: This package is a clear install-time beacon designed to exfiltrate host information to an attacker-controlled webhook, which fits a supply-chain attacker model targeting PyPI consumers during `pip install`. The `setup.py` entrypoint overrides `install` via `cmdclass={'install': InstallWithBeacon}` and sends `socket.gethostname()` plus `socket.gethostbyname(hostname)` to `https://webhook.site/c3989814-d57b-47c8-a6b0-b87aa9d8e88b` using `urllib.request.urlopen`. The OSV advisory is corroborated by the actual code: the package has no legitimate functionality beyond the beacon, and the static findings show exfiltration, network request, system info collection, and install-hook execution. The minimal metadata (`missing-description`, `no-repository`) further matches a throwaway malicious package rather than a benign library. ENTRY setup.py (install-hook: install/develop/build override present) - setup.py Code Execution in setup.py DESTINATION - 1 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - OAST/Interactsh Exfiltration in setup.py: "webhook.site" - Python File Upload to Remote in setup.py: "urllib.request.Request( BEACON_URL, data=" - Data Encoding for Exfiltration in setup.py: "json.dumps(data).encode" - Network Request in setup.py: "urllib.request.Request(" - System Information Collection in setup.py: "socket.gethostname()" - DNS Lookup in setup.py: "socket.gethostbyname(" ADDITIONAL FINDINGS - Setup.py Command Override in setup.py: "cmdclass={'install'" PAYLOAD FILES setup.py