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Malicious package

sac7635b0fRubyGems

Advisory published Updated

sac7635b0f is a confirmed malicious RubyGems package (MAL-2026-8569) 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 sac7635b0f (RubyGems)

MAL-2026-8569
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall sac7635b0f

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

8a85d5354f75c81402257860c7e430a9a49fb587629b76c1a787a8996777a241
29b096ed44d7895496777c3bed1c4bb7418c4f10085a2bf23403c519873876da

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for sac7635b0f (version 0.0.1).

  2. If you installed it — respond

    Remove sac7635b0f 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 sac7635b0f 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. sac7635b0f 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-2026-03220RLUA-2026-09114

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks sac7635b0f-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

sac7635b0f (RubyGems) malicious package — MAL-2026-8569 | O3 Security