Which versions of nirohf-reverse-shell are malicious?

The following PyPI versions of nirohf-reverse-shell are flagged malicious: 0.6, 2.6. Treat any of these as compromised.

How do I remediate nirohf-reverse-shell if I installed it?

nirohf-reverse-shell 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 nirohf-reverse-shell — how do I know if it already compromised me?

If nirohf-reverse-shell 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 nirohf-reverse-shell part of a known attack campaign?

Yes — nirohf-reverse-shell is associated with the 2023-12-09-nirohf-reverse-shell 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 nirohf-reverse-shell across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for nirohf-reverse-shell (2 malicious versions).

Malicious package

nirohf-reverse-shellPyPI

Advisory published Nov 29, 2024Updated Dec 12, 2025

nirohf-reverse-shell is a confirmed malicious PyPI package (MAL-2024-12314) that steals credentials and exfiltrates sensitive data (malicious versions 0.6, 2.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in nirohf-reverse-shell (PyPI)

MAL-2024-12314

Immediate action

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

pip uninstall nirohf-reverse-shell

What this malware does

Installing starts a reverse shell

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2023-12-09-nirohf-reverse-shell

Reasons (based on the campaign):

The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.

Malicious versions

2 flagged

0.62.6

Indicators of compromise (SHA-256)

0a9d6f7f525a7507406f078525c8094a0aaba6d2b5c723d7b74f6c895f16c310

c2b0a9ce248bca096b5109a73b943559cabbd6f77433d4a64cd1c804f7ec88df

1cf197043de97161435f1b7b122aeb5b744c5573f495a7eacf77a3a1aa72d787

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for nirohf-reverse-shell (2 malicious versions).
If you installed it — respond
nirohf-reverse-shell 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 nirohf-reverse-shell 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. nirohf-reverse-shell on PyPI has been identified as a malicious package (versions 0.6, 2.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2023-12-09-nirohf-reverse-shell

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)

Detect & block this

O3 blocks nirohf-reverse-shell-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