Which versions of thisisthedaventestz are malicious?

The following PyPI versions of thisisthedaventestz are flagged malicious: 99.99.99. Treat any of these as compromised.

How do I remediate thisisthedaventestz if I installed it?

thisisthedaventestz 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 thisisthedaventestz — how do I know if it already compromised me?

If thisisthedaventestz 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 thisisthedaventestz part of a known attack campaign?

Yes — thisisthedaventestz is associated with the RLMA-2025-04279, GENERIC-standard-pypi-install-pentest, RLUA-2026-00820 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 thisisthedaventestz across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for thisisthedaventestz (version 99.99.99).

Malicious package

thisisthedaventestzPyPI

Advisory published Aug 4, 2025Updated Mar 19, 2026

thisisthedaventestz is a confirmed malicious PyPI package (MAL-2025-41781) that steals credentials and exfiltrates sensitive data (malicious version 99.99.99). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in thisisthedaventestz (PyPI)

MAL-2025-41781

Immediate action

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

pip uninstall thisisthedaventestz

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

1 flagged

99.99.99

Indicators of compromise (SHA-256)

6553937fd4b937128281ff9cb7a961b992a3ad616d7de721bbe13710ffa1c4db

0bbfbbcf20f034759aef07877dabb55ce830ddb1e4ee277a3dc3d6f1e06cb454

d5f510bfda1aeb6999f77b06597e760e13d4058dab2a7f8620bf8c561db5d39c

5d5c55feb31dc6c0b6df0f9465102be5514cee8caed031b68f6c64778e9be754

d25a03a22fb51a4eb4271f4df052355a52e3566ffe41698b5328af6cc6b229a7

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for thisisthedaventestz (version 99.99.99).
If you installed it — respond
thisisthedaventestz 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 thisisthedaventestz 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. thisisthedaventestz on PyPI has been identified as a malicious package (version 99.99.99 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-04279GENERIC-standard-pypi-install-pentestRLUA-2026-00820

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks thisisthedaventestz-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