---
id: MAL-2026-18297
title: Malicious code in nebulallm (PyPI)
summary: Malicious code in nebulallm (PyPI)
severity: critical
exploited: true
vendor: nebulallm
product: nebulallm
ecosystem: pip
affected:
  - nebulallm
published: '2026-10-25'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T06:45:16.083182784Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/MAL-2026-18297'
references:
  - url: >-
      https://www.virustotal.com/gui/file/ccdd8b191818222bfbbe20816d7448b0f42745924e122849b2e06c3511a76c7d/detection
  - url: 'https://tria.ge/261025-yy5yvshy4v'
  - url: 'https://bad-packages.kam193.eu/pypi/package/nebulallm'
  - url: 'https://pypi.org/project/nebulallm/1.4.3/'
tags:
  - osv
  - pip
  - malware
ingestedAt: '2026-10-26T12:01:30.294Z'
---

## Overview


---
_-= Per source details. Do not edit below this line.=-_

## Source: amazon-inspector (5428d0f2f07674817697574b1993211dfa902bad746d8cd6efc1ad6b1fbbfd90)
nebulallm 1.4.3 presents itself as an AI API client stub but ships a custom install command class in setup.py that executes on `pip install`. The install hook spawns regsvr32.exe with the squiblydoo LOLBin pattern (`regsvr32 -s -i:<url> scrobj.dll`) to fetch and execute a remote COM scriptlet from https://akinomoreno.pythonanywhere.com/faye on the installer's Windows host. The subprocess is launched with DETACHED_PROCESS and stdin/stdout/stderr redirected to DEVNULL, so the dropper runs silently and produces no output during pip install. The declared package functionality is unrelated to the install-time behavior, consistent with a dropper staged behind a cover-story package.

## Source: kam193 (50e0ed125f08fd7743ccfb40590c24304b4731f6a99b69bc553b5bb8b7e57fc6)
During installation package first downloads a JScript script, which then downloads the next malicious DLL.


---

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


Campaign: 2026-10-nebulallm


Reasons (based on the campaign):


 - typosquatting


 - The package overrides the install command in setup.py to execute malicious code during installation.


 - Downloads and executes a remote executable.


 - Downloads and executes a remote malicious script.


 - malware


## Affected packages

- `nebulallm`

## Remediation

Refer to the advisory for the patched release.