Which versions of sfc0e8fa are malicious?

The following RubyGems versions of sfc0e8fa are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate sfc0e8fa if I installed it?

Remove sfc0e8fa 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 sfc0e8fa — how do I know if it already compromised me?

If sfc0e8fa 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 sfc0e8fa part of a known attack campaign?

Yes — sfc0e8fa is associated with the RLMA-2026-03247, RLUA-2026-09144 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 sfc0e8fa across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for sfc0e8fa (version 0.0.1).

Malicious package

sfc0e8faRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

sfc0e8fa is a confirmed malicious RubyGems package (MAL-2026-8596) 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 sfc0e8fa (RubyGems)

MAL-2026-8596

Immediate action

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

gem uninstall sfc0e8fa

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

ba1611225cbf3928ac63709efa9a3a27487f773577617c926abe34bc188650c4

0bd267f2bb058e99341a6240be8d73942e0ca7a5d071538c37783703ef77f069

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for sfc0e8fa (version 0.0.1).
If you installed it — respond
Remove sfc0e8fa 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 sfc0e8fa 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. sfc0e8fa 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-2026-03247RLUA-2026-09144

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks sfc0e8fa-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

All malware advisories How O3 detects malware Vulnerability database