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Malicious package

southprobe55a1778551356RubyGems

Advisory published Updated

southprobe55a1778551356 is a confirmed malicious RubyGems package (MAL-2026-8838) 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 southprobe55a1778551356 (RubyGems)

MAL-2026-8838
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall southprobe55a1778551356

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

87da1ea7747f6842f2dea9cf880e80e048feda8311c00f9f854a67974c3238e9
d8860d5bc7da8c15d09fd9044f1d8f826f6d1a3e935ae330f3a2e035e0d59e63

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for southprobe55a1778551356 (version 0.0.1).

  2. If you installed it — respond

    Remove southprobe55a1778551356 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 southprobe55a1778551356 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. southprobe55a1778551356 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-2026-03489RLUA-2026-09387

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks southprobe55a1778551356-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

southprobe55a1778551356 (RubyGems) malicious package — MAL-2026-8838 | O3 Security