MAL-2026-10091
Malicious code in qlinforge (PyPI)
Details
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## Source: amazon-inspector (713a696ce725031aab16903d7a29c80611a4c4368c7e35bacf29069a3581c602) setup.py registers a custom install command that, on Linux, downloads an opaque binary from http://115.190.124.243:9090/payload_linux_amd64 to /tmp/.cache, chmods it executable, and runs it with a C2 argument https://115.190.124.243:8443; on Windows it uses certutil to fetch http://115.190.124.243:9090/payload_windows_amd64.exe to C:/Windows/Temp/svchost2.exe (masquerading as svchost) and executes it. setup.py also writes a qlinforge.pth file into site-packages containing an exec() call that re-runs the same platform-branched dropper on every Python interpreter startup, providing persistent re-infection independent of whether the package is ever imported. The package is advertised as a benign 'Data Validation & Formatting Toolkit' with decoy validator/formatter/parser modules to hide the install-time payload.
## Source: kam193 (8952681c2680f17702d34d053b0af1af1ff8e27a18338b3e84cad5de7e661919) During installation, the package downloads and executes suspicious executables as well as establishes persistence using PTH files.
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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-07-qlinforge
Reasons (based on the campaign):
- The package overrides the install command in setup.py to execute malicious code during installation.
- Downloads and executes a remote executable.
- abuses-pth
- persistence
Are you affected?
Enter the version of the package you're using.
Affected packages
No fixed version published yet for qlinforge (pip). Pin to a known-safe version or switch to an alternative.
References
- https://www.virustotal.com/gui/file/cc47912f2155de3fb5d618f361d1da1743f969e332a0fc463667167e3f50e12d [EVIDENCE]
- https://www.virustotal.com/gui/file/f785d776c670ae303110984e20990a8d8365ca99f47b668a3e1393ebb9b1bf62/detection [EVIDENCE]
- https://bad-packages.kam193.eu/pypi/package/qlinforge [WEB]
- https://pypi.org/project/qlinforge/0.3.2/ [PACKAGE]