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Malicious package

bytekafkaPyPI

Malicious code in bytekafka (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2024-10355
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall bytekafka

What this malware does

A campaign of probably pentest packages flooding PYPI. Installing the package or importing the module triggers reporting basic info like hostname, path and the username to the package author. There is no other purpose of the package.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: 2024-11-byted-dast

Reasons (based on the campaign):

  • The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

  • typosquatting

  • dependency-confusion

The OpenSSF Package Analysis project identified 'bytekafka' @ 99.7 (pypi) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

Malicious versions

2 flagged
98.799.7

Indicators of compromise (SHA-256)

dbfd2a12ff91b5671296af36374207f6088d354cc6e39df805bc7bce975abc33
d91d33158626eb9c284857001b8566921a260bab235e22d44c961babfdc53525
32c6550914bf83f03b46acf778161efaee327dd537aa2ce0b6fbc53584c854f4
db224501664c4dd556eee114d25c695a5ceb5676c5077a0ae0cdb2672a213e63

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for bytekafka (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging bytekafka across your stack and pipelines.

  2. If you installed it — respond

    bytekafka 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 bytekafka was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks bytekafka before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. bytekafka on PyPI has been identified as a malicious package (versions 98.7, 99.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2024-11-byted-dast

References

Credits

  • Kamil Mańkowski (kam193)
  • OpenSSF: Package Analysis · finder

Detect & block this

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

bytekafka (PyPI) malicious package — MAL-2024-10355 | O3 Security