Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
Malicious package

swi6133RubyGems

Advisory published Updated

swi6133 is a confirmed malicious RubyGems package (MAL-2026-8937) 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 swi6133 (RubyGems)

MAL-2026-8937
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall swi6133

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

5073073ec9dc1f7e2c9eb299795938094080a2f3deeffe9274d606e87e5212db
d5415346ff4af326db7b2386b054b4c3f262ce94c2c17feb7967b8b9a51ed6de

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for swi6133 (version 0.0.1).

  2. If you installed it — respond

    Remove swi6133 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 swi6133 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. swi6133 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-2026-03588RLUA-2026-09501

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks swi6133-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

swi6133 (RubyGems) malicious package — MAL-2026-8937 | O3 Security