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Malicious package

opengrepPyPI

Advisory published Updated

opengrep is a confirmed malicious PyPI package (MAL-2025-2981) that steals credentials and exfiltrates sensitive data (malicious versions 0.0.1, 0.0.2, 0.0.3…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in opengrep (PyPI)

MAL-2025-2981
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall opengrep

What this malware does

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.

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: GENERIC-standard-pypi-install-pentest

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.

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

Malicious versions

8 flagged
0.0.10.0.20.0.30.0.40.0.50.0.60.0.70.0.8

Indicators of compromise (SHA-256)

12fb5927afd9ba0a8bc1d2b0f72af5e2eb2f0d8202e999da6f401ac3cca7f1b8
9454f71a434109877ff922804db2d081c4f08af5b047b0ee7a651ea21a0cf0fd
8de001a262d51e9750f84bfa2f6d30f5798aca9d0614b5feb95215ed1ced0507
ff192c815669701bedb4d6ee5c22adacb91a9be0db1204710cd3e83b871cb9fd
a7c4bbde4e0371dc055b22ffc8f525625c91f804b2f9aa9cb7af8d803efdd46c

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for opengrep (8 malicious versions).

  2. If you installed it — respond

    opengrep 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 opengrep 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. opengrep on PyPI has been identified as a malicious package (versions 0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.0.5, 0.0.6, 0.0.7, 0.0.8 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-01979GENERIC-standard-pypi-install-pentestRLUA-2026-00568

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks opengrep-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

opengrep (PyPI) malicious package — MAL-2025-2981 | O3 Security