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Malicious package

ffxnzzez0bcRubyGems

Advisory published Updated

ffxnzzez0bc is a confirmed malicious RubyGems package (MAL-2026-7685) that executes malicious code on install (malicious versions 0.0.1, 0.0.2, 0.0.3). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in ffxnzzez0bc (RubyGems)

MAL-2026-7685
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall ffxnzzez0bc

Malicious versions

3 flagged
0.0.10.0.20.0.3

Indicators of compromise (SHA-256)

a80bc390d77fe3f1925e7a085067250ed03814ecda60d838c557a6e7d17cb03e
2dd90c62536686970a379170f6dce1d4613c21bdc36ee202d61b122cde30e0ca

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for ffxnzzez0bc (3 malicious versions).

  2. If you installed it — respond

    Remove ffxnzzez0bc 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 ffxnzzez0bc 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. ffxnzzez0bc on RubyGems has been identified as a malicious package (versions 0.0.1, 0.0.2, 0.0.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-02336RLUA-2026-08081

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks ffxnzzez0bc-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

ffxnzzez0bc (RubyGems) malicious package — MAL-2026-7685 | O3 Security