Which versions of rfetchi are malicious?

The following RubyGems versions of rfetchi are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate rfetchi if I installed it?

Remove rfetchi from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

I already installed rfetchi — how do I know if it already compromised me?

If rfetchi 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 rfetchi part of a known attack campaign?

Yes — rfetchi is associated with the RLMA-2026-03175, RLUA-2026-09062 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 rfetchi across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for rfetchi (version 0.0.1).

Malicious package

rfetchiRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

rfetchi is a confirmed malicious RubyGems package (MAL-2026-8524) that executes malicious code on install (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in rfetchi (RubyGems)

MAL-2026-8524

Immediate action

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

gem uninstall rfetchi

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

d2739cc48f13a1ad5e01b993e6d372e06680f81badf8b2b80eb584ed083f300a

04735df4bf5760307bc82f54c0c81a323a6a758cf92c451f2b1d8112eb1d577d

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for rfetchi (version 0.0.1).
If you installed it — respond
Remove rfetchi from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If rfetchi 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. rfetchi on RubyGems has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-03175RLUA-2026-09062

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks rfetchi-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

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