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Malicious package

uxlambcal2RubyGems

Advisory published Updated

uxlambcal2 is a confirmed malicious RubyGems package (MAL-2026-9066) 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 uxlambcal2 (RubyGems)

MAL-2026-9066
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall uxlambcal2

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

63a82963aac20b1bbc0b7b82620a8f06b0269bbc9e5aa1a8fb98f4671a671588
cd0cfb10d12c4b8fc9a6042b16ed9f676f683ec9e8d2adc338e3c39b24a98c55

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for uxlambcal2 (version 0.0.1).

  2. If you installed it — respond

    Remove uxlambcal2 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 uxlambcal2 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. uxlambcal2 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-2026-03717RLUA-2026-09644

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks uxlambcal2-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

uxlambcal2 (RubyGems) malicious package — MAL-2026-9066 | O3 Security