VYPR

pypi · Malicious package advisory

Malware

hello-bat-fwi9

GHSA-v3cx-96jw-mv99

Malicious code in hello-bat-fwi9 (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1.0`

## 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

---

Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/a80d4939d50a8004eae58141b83e56a385f0144a/osv/malicious/pypi/hello-bat-fwi9/MAL-2026-18735.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/hello-bat-fwi9
- https://github.com/ossf/malicious-packages/blob/a80d4939d50a8004eae58141b83e56a385f0144a/osv/malicious/pypi/hello-bat-fwi9/MAL-2026-18735.json
- https://www.virustotal.com/gui/file/cac4edbef72bbcb23fe55258b4f4a941235a24bc688f701afbbb125370451223/detection
- https://github.com/advisories/GHSA-v3cx-96jw-mv99

Compromised versions (1)

  • = 0.1.0

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