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Malicious package

bo3toPyPI

Advisory published Updated

bo3to is a confirmed malicious PyPI package (MAL-2024-11538) that steals credentials and exfiltrates sensitive data (malicious version 0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bo3to (PyPI)

MAL-2024-11538
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall bo3to

What this malware does

During installation, a cryptominer is secretly installed and started.

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

Campaign: 2024-09-bondonioanderas-cryptominer

Reasons (based on the campaign):

  • cryptominer

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

  • obfuscation

Malicious versions

1 flagged
0.1

Indicators of compromise (SHA-256)

3ba9ceb66c2089feb9d9d1ba7b36c9218a396746fa3f82c811e5145e043715a2
f56f645ce4e6f0ba4962a7a5a3498c6e10a065bebb5cd57436fad8b210961a0e
131072b5bfcd4ce6218aaec66423046b83d0e49904d5992b26192daa201421bd
636ebc80ca4935056f9f0f5f5e8c0b69a5727b86efce292f9a9bf60452dbf8f2
07b4becdeaaa8939ea320caf4ba80f43af698515df3a9f3b9f7960e33cc55762

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for bo3to (version 0.1).

  2. If you installed it — respond

    bo3to is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If bo3to was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. bo3to on PyPI has been identified as a malicious package (version 0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-109832024-09-bondonioanderas-cryptominerRLUA-2026-00152

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks bo3to-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

bo3to (PyPI) malicious package — MAL-2024-11538 | O3 Security