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Malicious package

lbfajkdltuRubyGems

Advisory published Updated

lbfajkdltu is a confirmed malicious RubyGems package (MAL-2026-7923) 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 lbfajkdltu (RubyGems)

MAL-2026-7923
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall lbfajkdltu

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

dac993dbbe3d393e455a808d65554d16747c28212dc2cfb01dc03182a3075059
da4d226ebba7686ba87b9a6103466e11cabd0294f5f68fbbd8778fb2c9b550bc

Detection & response playbook

Malicious package
  1. Find it

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

  2. If you installed it — respond

    Remove lbfajkdltu 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 lbfajkdltu 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. lbfajkdltu 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-2026-02574RLUA-2026-08391

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks lbfajkdltu-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

lbfajkdltu (RubyGems) malicious package — MAL-2026-7923 | O3 Security