Which versions of jupiterhelper are malicious?

The following PyPI versions of jupiterhelper are flagged malicious: 0.1.1, 0.1.2, 0.1.3, 0.1.5. Treat any of these as compromised.

How do I remediate jupiterhelper if I installed it?

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

If jupiterhelper 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 jupiterhelper part of a known attack campaign?

Yes — jupiterhelper is associated with the RLMA-2024-08431, 2024-08-sleipnirbrowser-web3, RLUA-2026-00443 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 jupiterhelper across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for jupiterhelper (4 malicious versions).

Malicious package

jupiterhelperPyPI

Advisory published Aug 10, 2024Updated Mar 19, 2026

jupiterhelper is a confirmed malicious PyPI package (MAL-2024-10038) that steals credentials and exfiltrates sensitive data (malicious versions 0.1.1, 0.1.2, 0.1.3…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in jupiterhelper (PyPI)

MAL-2024-10038

Immediate action

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

pip uninstall jupiterhelper

What this malware does

Once run, downloads and install from sleipnirbrowser[.]org a suspicious executable pretending to be a webbrowser. This website appears to be a scam using some kind of crypto tokens, and trying to impersonate a legitimate Slepnir web browser (https://en.wikipedia.org/wiki/Sleipnir_(web_browser)).

Later versions switched to install a software identified as LUMMA infostealer (e.g. https://tria.ge/240817-whze2aydkc), hidden in different executables

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

Campaign: 2024-08-sleipnirbrowser-web3

Reasons (based on the campaign):

Downloads and executes a remote executable.
dependency-confusion
crypto-related
modify-system-without-consent
impersonation

Malicious versions

4 flagged

0.1.10.1.20.1.30.1.5

Indicators of compromise (SHA-256)

f4c2ed44682d9e8aeb0af5c089ded63e048d20cad21f6692eb54fcfcf4e5a914

16159e1e7d5967a767a15190ad93bd78c25a28da00f1dd2a0f3ab84b4a346227

5a8e36ac6c995bb1a6fa9de762d459e8a108754dba767f6f3d19c385eb005b5e

9bfe828fbb3a38cecdbf60b2101bb45c7ca49059289ce6329eca0a11b6b15a09

638f3577106c1e317d78e6dafd3081305f1b8577a36ef193222c21d7762d1441

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for jupiterhelper (4 malicious versions).
If you installed it — respond
jupiterhelper 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 jupiterhelper 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. jupiterhelper on PyPI has been identified as a malicious package (versions 0.1.1, 0.1.2, 0.1.3, 0.1.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-084312024-08-sleipnirbrowser-web3RLUA-2026-00443

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks jupiterhelper-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

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