Which versions of m8405v1rjo are malicious?

The following RubyGems versions of m8405v1rjo are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate m8405v1rjo if I installed it?

Remove m8405v1rjo 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 m8405v1rjo — how do I know if it already compromised me?

If m8405v1rjo 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 m8405v1rjo part of a known attack campaign?

Yes — m8405v1rjo is associated with the RLMA-2026-02730, RLUA-2026-08578 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 m8405v1rjo across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for m8405v1rjo (version 0.0.1).

Malicious package

m8405v1rjoRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

m8405v1rjo is a confirmed malicious RubyGems package (MAL-2026-8079) 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 m8405v1rjo (RubyGems)

MAL-2026-8079

Immediate action

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

gem uninstall m8405v1rjo

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

cdf58d2f99e6c1215b4a3f7d30b8ab20325bfc1a548b68d4f084b27adae19264

ea46da0f913ff46cef12b0c601cd56255bb89fbb260d670e1406906936e66a32

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for m8405v1rjo (version 0.0.1).
If you installed it — respond
Remove m8405v1rjo 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 m8405v1rjo 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. m8405v1rjo 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-2026-02730RLUA-2026-08578

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks m8405v1rjo-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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