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Malicious package

pd131119hcccRubyGems

Advisory published Updated

pd131119hccc is a confirmed malicious RubyGems package (MAL-2026-8420) 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 pd131119hccc (RubyGems)

MAL-2026-8420
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall pd131119hccc

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

cadeee27926508fe53d64c0774197029f5240e8980ac2699fd4707c1bed93240
24076a8c33e37b5def89d66e0b54f439f7f8312f948393aba8eb8be78acf2595

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for pd131119hccc (version 0.0.1).

  2. If you installed it — respond

    Remove pd131119hccc 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 pd131119hccc 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. pd131119hccc 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-2026-03071RLUA-2026-08941

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks pd131119hccc-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

pd131119hccc (RubyGems) malicious package — MAL-2026-8420 | O3 Security