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Malicious package

swpdf1311181RubyGems

Advisory published Updated

swpdf1311181 is a confirmed malicious RubyGems package (MAL-2026-8956) 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 swpdf1311181 (RubyGems)

MAL-2026-8956
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall swpdf1311181

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

73355064962b7cd4385ca2309cfe590196c0ee60775a223abcdddba6996619f5
d9a27274333b898fb43afa3e508133e101fbcf8e8f819d1305f42f30f453a356

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for swpdf1311181 (version 0.0.1).

  2. If you installed it — respond

    Remove swpdf1311181 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 swpdf1311181 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. swpdf1311181 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-2026-03607RLUA-2026-09520

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks swpdf1311181-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

swpdf1311181 (RubyGems) malicious package — MAL-2026-8956 | O3 Security