---
id: "MAL-2026-18735"
page: "https://infrastack.ai/live/MAL-2026-18735"
kind: "package"
aliases: ["MAL-2026-18735"]
title: "Malicious code in hello-bat-fwi9 (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "hello-bat-fwi9", "fixed": [], "affected": "= 0.1.0; = 0.1.1", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-11-06T20:33:22+00:00"
first_seen_at: "2026-11-06T21:44:27+00:00"
updated_at: "2026-11-06T21:58:33+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-18735", "first_seen_at": "2026-11-06T21:44:27+00:00"}]
exploit_sources: []
---

# Malicious code in hello-bat-fwi9 (PyPI)

Link for people: https://infrastack.ai/live/MAL-2026-18735 (this .md is for agents)

## Affected

- pypi:hello-bat-fwi9 affected = 0.1.0; = 0.1.1 fixed no fixed version listed

## Timeline

- 2026-11-06T21:44:27+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-18735

## From the sources

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

## Source: kam193 (915b488501776e1dc1f9c551e0a52310fc6daa8a299b0638f6d5d7f615d1ad8b)
The package delivers an obfuscated .bat file delivering a RAT, with the help of its own Python runtime and PTH files. The code requires manually triggering the malicious action. This is most likely a continuation of the campaign 2026-11-filipt.


---

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


Campaign: 2026-11-hello-bat-fwi9


Reasons (based on the campaign):


 - obfuscation


 - rat


 - abuses-pth


 - malware

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_