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Malicious package

simple-text-parserPyPI

Malicious code in simple-text-parser (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-1287
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall simple-text-parser

What this malware does

Packages that might be part of testing for pentesting / malicious activity / joy, with suspicious activity that does not present any real harm.

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-simple-tests

Reasons (based on the campaign):

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

Malicious versions

1 flagged
0.24.2

Indicators of compromise (SHA-256)

028015ffba2e58b87cbc6405ccb9358c194b81fafea44e7359587509510d4027
723227bfe93a36ee494a8a371622578d8907d7475a47aeb0e9b1b005bf434391

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for simple-text-parser (version 0.24.2). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging simple-text-parser across your stack and pipelines.

  2. If you installed it — respond

    Remove simple-text-parser from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If simple-text-parser 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 simple-text-parser 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. simple-text-parser on PyPI has been identified as a malicious package (version 0.24.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GENERIC-simple-tests

References

Credits

  • Kamil Mańkowski (kam193) · analyst

Detect & block this

O3 blocks simple-text-parser-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

simple-text-parser (PyPI) malicious package — MAL-2026-1287 | O3 Security