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Malicious package

zzpdfvar08RubyGems

Advisory published Updated

zzpdfvar08 is a confirmed malicious RubyGems package (MAL-2026-9965) 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 zzpdfvar08 (RubyGems)

MAL-2026-9965
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zzpdfvar08

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

63c0438d53ba15ee56c6330ebf08c9ccdfd05bf7ef31b57e004525f1eb9d09aa
cce28f11d39e133aecf4c4a86b30066a85616917e2fdd51b2bf3a2030e15c4dd

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for zzpdfvar08 (version 0.0.1).

  2. If you installed it — respond

    Remove zzpdfvar08 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 zzpdfvar08 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. zzpdfvar08 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-2026-04616RLUA-2026-10554

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zzpdfvar08-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

zzpdfvar08 (RubyGems) malicious package — MAL-2026-9965 | O3 Security