dbzy-tools

Details

**Severity:** Critical

**Affected versions:** `= 1.0.1`

## Source: amazon-inspector (a0432a46ed92acb897826fc16d26cba900bd3d18f0de5baa7f2909a44d9ec625)
The package advertises itself as a network debugging tool but its CLI and modules compose a remote-access toolkit. The `dbzy-tools` console entry calls `core.start(config_url)` which fetches JSON from a caller-supplied URL via urllib, base64-decodes the `payload` field, and passes it to `exec()` with no integrity check — arbitrary Python code from an arbitrary URL runs in the invoking user's context. `server.py` implements a paramiko-based SSH server that binds 0.0.0.0:2222, accepts hardcoded default credentials `root`/`password`, and spawns `/bin/bash -i` as an interactive pty for each authenticated session; paramiko is auto-installed via `pip install` at first import. `frpc.py` downloads an frpc reverse-proxy binary from a caller-supplied URL via `curl`, chmods it 0755, writes a config that tunnels a local port to an operator-chosen remote frps server, and launches it — providing a NAT-piercing path back to the SSH shell. The combination of remote-payload exec, listening SSH-to-bash bridge with default creds, and outbound reverse tunnel is a complete backdoor/RAT toolkit packaged under a benign cover.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/dbzy-tools/MAL-2026-7023.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/dbzy-tools/MAL-2026-7023.json
- https://pypi.org/project/dbzy-tools/1.0.1
- https://github.com/advisories/GHSA-3rf5-7xc8-95j7

Compromised versions (1)

• = 1.0.1

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