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Malicious package

lammcal6RubyGems

Advisory published Updated

lammcal6 is a confirmed malicious RubyGems package (MAL-2026-7883) 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 lammcal6 (RubyGems)

MAL-2026-7883
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall lammcal6

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

3ac0c68a4d9f7c6066cdca711a0312f40137a0a989de8b41c5e925e4642da649
418394e85a69faf928b557ba5f717e0ad4dbc25295693dae21fbe31d2416b1a4

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for lammcal6 (version 0.0.1).

  2. If you installed it — respond

    Remove lammcal6 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 lammcal6 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. lammcal6 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-2026-02534RLUA-2026-08349

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks lammcal6-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

lammcal6 (RubyGems) malicious package — MAL-2026-7883 | O3 Security