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Malicious package

oakmi15300RubyGems

Advisory published Updated

oakmi15300 is a confirmed malicious RubyGems package (MAL-2026-8383) 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 oakmi15300 (RubyGems)

MAL-2026-8383
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall oakmi15300

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

6fefe17ec593fce37ab197b0074b1dff1f185a7bd074655350dfe5c4321f473e
0ed83dba6f8163faff2ee07e37f061fc8838636b21502ea2308fb21cdaab4b9d

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for oakmi15300 (version 0.0.1).

  2. If you installed it — respond

    Remove oakmi15300 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 oakmi15300 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. oakmi15300 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-2026-03034RLUA-2026-08898

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks oakmi15300-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

oakmi15300 (RubyGems) malicious package — MAL-2026-8383 | O3 Security