MAL-2026-10975

Dashboard / Malicious Package / MAL-2026-10975

MAL-2026-10975

Summary: Malicious code in rasterkit-demo (PyPI)

Details: Source: amazon-inspector (d748af7546aacbfca356759d4c81386f113a32dfc80ff8bb75da3eb3c8b4358d) rasterkit-demo ships a CLI entry point (`rasterkit-demo`) whose `run_demo()` function imports `demo_channel_windows` from `PIL._data` and passes the returned buffer to `exec(samples.decode('latin-1'), {'__name__': '__main__',...})` inside worker threads. `PIL._data` is not a real Pillow module; it is supplied by the `rasterkit` package that this demo declares as a required dependency, so the bytes being executed are chosen at runtime by the author-controlled `rasterkit` package rather than by Pillow. The surrounding functions (`extract_windows`, `render_tiles`, `save_tiles`) and the 'channel window / processing pipeline' docstrings provide imaging cover for what is arbitrary Python execution; the payload can be changed at will by publishing a new version of `rasterkit` without republishing this package. Running the advertised CLI therefore executes attacker-mutable code on the installer's machine under an image-processing cover story. Source: kam193 (29eb6057bbc11a0f0180a030db952f9ec8aa39ce8c4b0d437046b20301f5b21a) During import, the code uses steganography to extract code from an image hidden in the dependency. The code then adds a new authorized SSH key and reports back the IP of the current environment. Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-06-textwrap-toolkit-stager Reasons (based on the campaign): - backdoor - obfuscation - crypto-related - Downloads and executes a remote malicious script. - exfiltration-crypto

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