Which versions of jupphelp are malicious?

The following PyPI versions of jupphelp are flagged malicious: 0.1.0. Treat any of these as compromised.

How do I remediate jupphelp if I installed it?

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

If jupphelp 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 jupphelp part of a known attack campaign?

Yes — jupphelp is associated with the 2024-08-sleipnirbrowser-web3 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 jupphelp across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for jupphelp (version 0.1.0).

Malicious package

jupphelpPyPI

Advisory published Aug 10, 2024Updated Dec 12, 2025

jupphelp is a confirmed malicious PyPI package (MAL-2024-12296) that steals credentials and exfiltrates sensitive data (malicious version 0.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in jupphelp (PyPI)

MAL-2024-12296

Immediate action

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

pip uninstall jupphelp

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

1 flagged

0.1.0

Indicators of compromise (SHA-256)

eabfeab24c4de1451619c0588b65955da3b6ab4e6cfe5db4fdd48f6ef785d03c

dcda51f3ac0b82ef824630ce053d4dc42aa2021baf16e476ca83ef8d7f7c1cab

1e21360df6072212b4970cc75a78f3e4538ba09a4b6c4ccc54b9f40925099488

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for jupphelp (version 0.1.0).
If you installed it — respond
jupphelp 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 jupphelp 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. jupphelp on PyPI has been identified as a malicious package (version 0.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2024-08-sleipnirbrowser-web3

References

Credits

Kamil Mańkowski (kam193)

Detect & block this

O3 blocks jupphelp-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

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