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Malicious package

zlday2711778553471RubyGems

Advisory published Updated

zlday2711778553471 is a confirmed malicious RubyGems package (MAL-2026-9645) 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 zlday2711778553471 (RubyGems)

MAL-2026-9645
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zlday2711778553471

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

fcb3c2a89ef51a35fff170f626437f77cbaf8fc684437b5dc88ae8a79a7ad812
14bf1e5271da0dc8fc78df8ca486487d8c1466f6b855daf9f41faaf3eb828cc6

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for zlday2711778553471 (version 0.0.1).

  2. If you installed it — respond

    Remove zlday2711778553471 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 zlday2711778553471 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. zlday2711778553471 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-2026-04296RLUA-2026-10233

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zlday2711778553471-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

zlday2711778553471 (RubyGems) malicious package — MAL-2026-9645 | O3 Security