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Malicious package

lamj02RubyGems

Advisory published Updated

lamj02 is a confirmed malicious RubyGems package (MAL-2026-7869) 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 lamj02 (RubyGems)

MAL-2026-7869
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall lamj02

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

042d453c93cf4183f5b21c176f7f1bcbb91b18e7b30551f9d8d7310153c1d682
2d940c4efb570e0c2b19e9876b99b22187b32d4154d38fa302f9dee5b2a69fa5

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for lamj02 (version 0.0.1).

  2. If you installed it — respond

    Remove lamj02 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 lamj02 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. lamj02 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-2026-02520RLUA-2026-08335

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks lamj02-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

lamj02 (RubyGems) malicious package — MAL-2026-7869 | O3 Security