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Malicious package

prx975fe5e3feRubyGems

Advisory published Updated

prx975fe5e3fe is a confirmed malicious RubyGems package (MAL-2026-8464) 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 prx975fe5e3fe (RubyGems)

MAL-2026-8464
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall prx975fe5e3fe

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

a03485f9f6f62b71ab95c47a87e5c5cdf15f1a8e446bda9e533f30f390db3283
c9a5f487c779120f15d5ebd91744c98e6ea0bee478138a0a873c19eb0242434b

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for prx975fe5e3fe (version 0.0.1).

  2. If you installed it — respond

    Remove prx975fe5e3fe 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 prx975fe5e3fe 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. prx975fe5e3fe 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-2026-03115RLUA-2026-08990

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks prx975fe5e3fe-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

prx975fe5e3fe (RubyGems) malicious package — MAL-2026-8464 | O3 Security