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Malicious package

md_confluenceRubyGems

Advisory published Updated

md_confluence is a confirmed malicious RubyGems package (MAL-2025-192911) that executes malicious code on install (malicious version 5.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in md_confluence (RubyGems)

MAL-2025-192911
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall md_confluence

Malicious versions

1 flagged
5.0.1

Indicators of compromise (SHA-256)

3d82836f30846a4b6b926ae78913f46d467cdb36fc374066f26919a1ff612b8a
8cca1eecd793399f856938147cea8d489af9146e803be355d0f1ff14eda77525

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for md_confluence (version 5.0.1).

  2. If you installed it — respond

    Remove md_confluence 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 md_confluence 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. md_confluence on RubyGems has been identified as a malicious package (version 5.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06620RLUA-2026-08585

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks md_confluence-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

md_confluence (RubyGems) malicious package — MAL-2025-192911 | O3 Security