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Malicious package

rtok3xw993RubyGems

Advisory published Updated

rtok3xw993 is a confirmed malicious RubyGems package (MAL-2026-8544) 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 rtok3xw993 (RubyGems)

MAL-2026-8544
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall rtok3xw993

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

3d917bfc72c6975bab2a6ddc2918cad036e5324e460affc4e8608c6f3865e411
d60b5ec41eb5066bde831d304498eab3f12be9ca76cc704365dc1b89b72716eb

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for rtok3xw993 (version 0.0.1).

  2. If you installed it — respond

    Remove rtok3xw993 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 rtok3xw993 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. rtok3xw993 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-2026-03195RLUA-2026-09085

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks rtok3xw993-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

rtok3xw993 (RubyGems) malicious package — MAL-2026-8544 | O3 Security