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Malicious package

sf72647cRubyGems

Advisory published Updated

sf72647c is a confirmed malicious RubyGems package (MAL-2026-8593) 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 sf72647c (RubyGems)

MAL-2026-8593
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall sf72647c

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

b4fa3ebe9cc5f30cde31fc8a8ed1488396a793d14d088c77c73fa422e4c548d1
2ecc961eda3d619551108ad1307e2e8dd8997f55771ee0cb87a8921cc1027abf

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for sf72647c (version 0.0.1).

  2. If you installed it — respond

    Remove sf72647c 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.

  3. Did it already run?

    If sf72647c 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. sf72647c 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-2026-03244RLUA-2026-09141

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks sf72647c-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.

Explore

sf72647c (RubyGems) malicious package — MAL-2026-8593 | O3 Security