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Malicious package

watpdf884RubyGems

Advisory published Updated

watpdf884 is a confirmed malicious RubyGems package (MAL-2026-9312) 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 watpdf884 (RubyGems)

MAL-2026-9312
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall watpdf884

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

06b4a203c5189887bc27518211b505495aab042badfe617c887a4addb3dc36eb
74df286ea12ce118cfe36438bfb6dd073bc9eaab7a31f7f030781fd188dc8a56

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for watpdf884 (version 0.0.1).

  2. If you installed it — respond

    Remove watpdf884 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 watpdf884 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. watpdf884 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-2026-03963RLUA-2026-09893

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks watpdf884-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

watpdf884 (RubyGems) malicious package — MAL-2026-9312 | O3 Security