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Malicious package

zlam_demo11842RubyGems

Advisory published Updated

zlam_demo11842 is a confirmed malicious RubyGems package (MAL-2026-9623) 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 zlam_demo11842 (RubyGems)

MAL-2026-9623
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zlam_demo11842

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

4a6bfe666a3f9b03f44c1f16aefb56d88d45ca94557c9458e88a1998329a31b5
0fa7686d4a19aaf09c54ff71b5e0d80a245989b2a3ca5a810e71b32a7ea009a5

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for zlam_demo11842 (version 0.0.1).

  2. If you installed it — respond

    Remove zlam_demo11842 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 zlam_demo11842 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. zlam_demo11842 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-2026-04274RLUA-2026-10211

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zlam_demo11842-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

zlam_demo11842 (RubyGems) malicious package — MAL-2026-9623 | O3 Security