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Malicious package

enc30551RubyGems

Advisory published Updated

enc30551 is a confirmed malicious RubyGems package (MAL-2026-7663) 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 enc30551 (RubyGems)

MAL-2026-7663
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall enc30551

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

1bcbfad8ea977e0ca3cc525fbb6cf819b02be08747b0c3079ac9fe8206e47646
41b85d561d32b7d13f5e13c0268f93299831c5231d46eb625e14bb8eb03becec

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for enc30551 (version 0.0.1).

  2. If you installed it — respond

    Remove enc30551 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 enc30551 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. enc30551 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-2026-02314RLUA-2026-08054

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks enc30551-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

enc30551 (RubyGems) malicious package — MAL-2026-7663 | O3 Security