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Malicious package

watpdf885RubyGems

Advisory published Updated

watpdf885 is a confirmed malicious RubyGems package (MAL-2026-9313) 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 watpdf885 (RubyGems)

MAL-2026-9313
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall watpdf885

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

256ca2f2159cacf68dd0dac7b1892887577c57c78700854886e77d16da46feb3
e56818633677a564f84c3cc40e2a91a8136e1309b4753965f45b9947935575bf

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for watpdf885 (version 0.0.1).

  2. If you installed it — respond

    Remove watpdf885 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 watpdf885 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. watpdf885 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-2026-03964RLUA-2026-09894

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks watpdf885-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

watpdf885 (RubyGems) malicious package — MAL-2026-9313 | O3 Security