sher-server-tool

GHSA-2w3p-8q8g-28jf

Malicious code in sher-server-tool (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.0.1`

## Source: kam193 (e83ee8187475c07ed6ea406a698e3f9d3c55efec8e689ba0c110a6ee2ce1012b)
Starting the module activates a hardcoded telegram bot allowing remote code execution, data exfiltration, collecting webcam photos, clipboard data, etc.


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


Campaign: 2026-04-sher-net


Reasons (based on the campaign):


 - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.


 - rat


 - spyware-like

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/sher-server-tool/MAL-2026-2840.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/sher-server-tool
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/sher-server-tool/MAL-2026-2840.json
- https://github.com/advisories/GHSA-2w3p-8q8g-28jf

Compromised versions (1)

= 0.0.1

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