Which versions of tryb1zz are malicious?

The following RubyGems versions of tryb1zz are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate tryb1zz if I installed it?

Remove tryb1zz 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.

I already installed tryb1zz — how do I know if it already compromised me?

If tryb1zz 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.

Is tryb1zz part of a known attack campaign?

Yes — tryb1zz is associated with the RLMA-2026-03660, RLUA-2026-09584 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find tryb1zz across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for tryb1zz (version 0.0.1).

Malicious package

tryb1zzRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

tryb1zz is a confirmed malicious RubyGems package (MAL-2026-9009) 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 tryb1zz (RubyGems)

MAL-2026-9009

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

gem uninstall tryb1zz

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

f629542b93881ec3f6ce61f3f34c0722f2936c0102f41a8775c3a2c6b1fb08eb

beab1f4fd3982162d8ad63f6030a0446f0508156816d00fee603d7bc1668a8c8

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for tryb1zz (version 0.0.1).
If you installed it — respond
Remove tryb1zz 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.
Did it already run?
If tryb1zz 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. tryb1zz 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-2026-03660RLUA-2026-09584

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks tryb1zz-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.

Malware detection Runtime egress monitoring

Explore

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