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Malicious package

pysisyphesPyPI

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

MAL-2024-10457
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall pysisyphes

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 'pysisyphes' @ 912.6 (pypi) as malicious.

It is considered malicious because:

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

Malicious versions

1 flagged
912.6

Indicators of compromise (SHA-256)

50bfb5408b54931694db108b405e011cb1485903a1a7c1d79cd9d2837cf06d74
2addd2dc4d2f602f3157690225beeb74c9e4de2252ba9c2bd5064f437d102597
d912adeb14deb9684eadcdd58dc7e656b89143c5323b05c5bdd62f6993c56a60
5676746714a22ae0bd8a9f4e09d00d2e58cebaf5d707e5ace23e42c1383430d5

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 pysisyphes (version 912.6). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging pysisyphes across your stack and pipelines.

  2. If you installed it — respond

    pysisyphes 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 pysisyphes 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 pysisyphes 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. pysisyphes on PyPI has been identified as a malicious package (version 912.6 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 pysisyphes-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

pysisyphes (PyPI) malicious package — MAL-2024-10457 | O3 Security