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Malicious package

slnproxy377155RubyGems

Advisory published Updated

slnproxy377155 is a confirmed malicious RubyGems package (MAL-2026-8725) 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 slnproxy377155 (RubyGems)

MAL-2026-8725
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall slnproxy377155

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

ff0da0e1f44db32f2d936a6aa2c1d403c9fdd4565ac59107f0667c00a20bdd65
9a62041b33f585b21d0bb4def93039a989be8b7a04a06c2440c3a94d4a5ac6fd

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for slnproxy377155 (version 0.0.1).

  2. If you installed it — respond

    Remove slnproxy377155 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 slnproxy377155 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. slnproxy377155 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-2026-03376RLUA-2026-09274

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks slnproxy377155-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

slnproxy377155 (RubyGems) malicious package — MAL-2026-8725 | O3 Security