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Malicious package

sprox-c160-0hgRubyGems

Advisory published Updated

sprox-c160-0hg is a confirmed malicious RubyGems package (MAL-2026-8863) 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 sprox-c160-0hg (RubyGems)

MAL-2026-8863
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall sprox-c160-0hg

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

42fffe3ebbc0da1de85515ce152bb152c43af8dad08b1d9b6d115434bf7ea295
be92a76a82210576903f7f1e87e2647efbb802f8f01cef69d3e15732e89d3b53

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for sprox-c160-0hg (version 0.0.1).

  2. If you installed it — respond

    Remove sprox-c160-0hg 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 sprox-c160-0hg 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. sprox-c160-0hg 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-2026-03514RLUA-2026-09420

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks sprox-c160-0hg-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

sprox-c160-0hg (RubyGems) malicious package — MAL-2026-8863 | O3 Security