Which versions of byted-tbs are malicious?

The following PyPI versions of byted-tbs are flagged malicious: 0.1.0. Treat any of these as compromised.

How do I remediate byted-tbs if I installed it?

byted-tbs 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.

I already installed byted-tbs — how do I know if it already compromised me?

If byted-tbs 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.

Is byted-tbs part of a known attack campaign?

Yes — byted-tbs is associated with the RLMA-2024-07909, 2024-08-byted-22.ax, RLUA-2026-00168 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find byted-tbs across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for byted-tbs (version 0.1.0).

Part of a larger attack: 2024-08-byted-22.ax published 9 malicious packages. See the full campaign →

Malicious package

byted-tbsPyPI

Advisory published Aug 22, 2024Updated Mar 19, 2026

byted-tbs is a confirmed malicious PyPI package (MAL-2024-9957) that steals credentials and exfiltrates sensitive data (malicious version 0.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in byted-tbs (PyPI)

MAL-2024-9957

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

pip uninstall byted-tbs

What this malware does

Collects basic information about the system, most probably a pentest or bug bounty.

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: 2024-08-byted-22.ax

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.

Malicious versions

1 flagged

0.1.0

Indicators of compromise (SHA-256)

d9ee68a28ecc687350b9b7d9d8dabd25f35abbb1e0b67f4301c7db80a46ba6d6

c3a53a7c8acbad5a8fbd4f7d5d6fb603797208edeb860e7e0a792c51465a7dc6

749adf634a79e321082a53a1715caf4c239935563b6c3dadbd8e3e60e0e41485

8f39a268af75e3669e5104359e23f59174edc1068a36444af8b2a83d0ec85216

230a48a5e936ca70c96783b7b4b870aa2f7a23a9a17eb6e616ac37cde2b52dfd

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for byted-tbs (version 0.1.0).
If you installed it — respond
byted-tbs 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.
Did it already run?
If byted-tbs 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. byted-tbs on PyPI has been identified as a malicious package (version 0.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-079092024-08-byted-22.axRLUA-2026-00168

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

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

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database