Which versions of chmid4000x579098 are malicious?

The following RubyGems versions of chmid4000x579098 are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate chmid4000x579098 if I installed it?

Remove chmid4000x579098 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 chmid4000x579098 — how do I know if it already compromised me?

If chmid4000x579098 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 chmid4000x579098 part of a known attack campaign?

Yes — chmid4000x579098 is associated with the RLMA-2026-02228, RLUA-2026-07903 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 chmid4000x579098 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for chmid4000x579098 (version 0.0.1).

Malicious package

chmid4000x579098RubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

chmid4000x579098 is a confirmed malicious RubyGems package (MAL-2026-7577) 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 chmid4000x579098 (RubyGems)

MAL-2026-7577

Immediate action

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

gem uninstall chmid4000x579098

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

4d7e6f7f932a84b3a925dcb334cc5925ca443d07fe02d8ec5366c1c78f8d733f

54b29fb611c8fafb32f1d06cceb66e198172340d1a520b231d689c0206c23bee

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for chmid4000x579098 (version 0.0.1).
If you installed it — respond
Remove chmid4000x579098 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 chmid4000x579098 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. chmid4000x579098 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-2026-02228RLUA-2026-07903

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks chmid4000x579098-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

All malware advisories How O3 detects malware Vulnerability database