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Malicious package

emumonitorPyPI

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

MAL-2024-10450
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall emumonitor

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 'emumonitor' @ 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)

add87509dcafd3eb88205c43312f2bd5ce37c43cbaf0f9033e3d3d8c49bdf90b
8d23b2ebf730b2da5f9cc3349ff6c99cb1c525616c40e86c84551a9a1c935dd9
f81d52eb851a33b67eaf351a091246d4f3d78527cc216b2198f8c57cb4053253
2c3babeb3a618ddda04669c9b046e830fe97cadb0385294aa79f9dee17d83a66

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

  2. If you installed it — respond

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

emumonitor (PyPI) malicious package — MAL-2024-10450 | O3 Security