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Malicious package

uxds124879RubyGems

Advisory published Updated

uxds124879 is a confirmed malicious RubyGems package (MAL-2026-9048) 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 uxds124879 (RubyGems)

MAL-2026-9048
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall uxds124879

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

2fc5ea40bf888f7ccdf5fddd16f4183f836bc7a769b871d752be4531f2c88db5
7b3bb9fe3c01befb45ee6e49dd6d22dd07ac0f956fdd5acab7ce4389e663dc64

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for uxds124879 (version 0.0.1).

  2. If you installed it — respond

    Remove uxds124879 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 uxds124879 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. uxds124879 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-2026-03699RLUA-2026-09626

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks uxds124879-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

uxds124879 (RubyGems) malicious package — MAL-2026-9048 | O3 Security