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Malicious package

slvbzr137RubyGems

Advisory published Updated

slvbzr137 is a confirmed malicious RubyGems package (MAL-2026-8790) that executes malicious code on install (malicious version 0.0.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in slvbzr137 (RubyGems)

MAL-2026-8790
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall slvbzr137

Malicious versions

1 flagged
0.0.2

Indicators of compromise (SHA-256)

2363de32e70f7bcee0e8df906db60e9c77bcd66f40ff90688e195619fdf49b38
df9494ac30495e8f1e18a5408623e042630f3438042e79306187d73145715056

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for slvbzr137 (version 0.0.2).

  2. If you installed it — respond

    Remove slvbzr137 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 slvbzr137 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. slvbzr137 on RubyGems has been identified as a malicious package (version 0.0.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-03441RLUA-2026-09339

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks slvbzr137-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

slvbzr137 (RubyGems) malicious package — MAL-2026-8790 | O3 Security