Which versions of sinontop-utils are malicious?

The following PyPI versions of sinontop-utils are flagged malicious: 0.3.5. Treat any of these as compromised.

How do I remediate sinontop-utils if I installed it?

sinontop-utils 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 sinontop-utils — how do I know if it already compromised me?

If sinontop-utils 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 sinontop-utils part of a known attack campaign?

Yes — sinontop-utils is associated with the RLMA-2025-03685, RLUA-2025-04257, 2025-07-0x9xnx, RLUA-2026-00760 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 sinontop-utils across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for sinontop-utils (version 0.3.5).

Part of a larger attack: 2025-07-0x9xnx published 9 malicious packages. See the full campaign →

Malicious package

sinontop-utilsPyPI

Advisory published Jul 4, 2025Updated Mar 19, 2026

sinontop-utils is a confirmed malicious PyPI package (MAL-2025-6586) that steals credentials and exfiltrates sensitive data (malicious version 0.3.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in sinontop-utils (PyPI)

MAL-2025-6586

Immediate action

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

pip uninstall sinontop-utils

What this malware does

Series of packages mostly with an obfuscated infostealer attempting to collect Chrome data. While discord webhook is usually set to an example, there are other, correct uploading URLs

Some of related packages only test partial malicious code, like webhooks from overwritten setup.py

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

Campaign: 2025-07-0x9xnx

Reasons (based on the campaign):

infostealer
obfuscation
exfiltration-browser-data
exfiltration-crypto
The package overrides the install command in setup.py to execute malicious code during installation.

Malicious versions

1 flagged

0.3.5

Indicators of compromise (SHA-256)

721f12b78880f95dad6c77ddd2c51b5ddcf0c1d11a345801dae555af7ae6a060

5ec866361fc18dcea178404d7af04fc3a5f87bc73d259ccc9e3329cd01e44fd9

aa66cf0fed7236f29dc0462c218ed2c9445b6087c11c6d655bdb14090d829995

2e4796f9772fd88b2cad42713f8d9b731428bea0bc0aaef2645676789636b7c1

927b6191ebc35642b850efea8799059e00b49d08579a7bb73321ccc518f3a25f

dbff6ec092c875081941f40d5c95e91541d2fdc8b6a407c3421f5668d5fa957a

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for sinontop-utils (version 0.3.5).
If you installed it — respond
sinontop-utils 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 sinontop-utils 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. sinontop-utils on PyPI has been identified as a malicious package (version 0.3.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-03685RLUA-2025-042572025-07-0x9xnxRLUA-2026-00760

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks sinontop-utils-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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