Which versions of bhsndler are malicious?

The following RubyGems versions of bhsndler are flagged malicious: 1.0.0, 1.0.77793. Treat any of these as compromised.

How do I remediate bhsndler if I installed it?

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

If bhsndler 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 bhsndler part of a known attack campaign?

Yes — bhsndler is associated with the RLMA-2026-07250 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 bhsndler across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for bhsndler (2 malicious versions).

Malicious package

bhsndlerRubyGems

Advisory published Sep 22, 2026Updated Sep 24, 2026

bhsndler is a confirmed malicious RubyGems package (MAL-2026-16592) that executes malicious code on install (malicious versions 1.0.0, 1.0.77793). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bhsndler (RubyGems)

MAL-2026-16592

Immediate action

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

gem uninstall bhsndler

Malicious versions

2 flagged

1.0.01.0.77793

Indicators of compromise (SHA-256)

8a90e200cd75da07e109bcdb6fc6ece179933a2a97d636dd4a3d6a7783133791

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for bhsndler (2 malicious versions).
If you installed it — respond
Remove bhsndler 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 bhsndler 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. bhsndler on RubyGems has been identified as a malicious package (versions 1.0.0, 1.0.77793 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-07250

Credits

ReversingLabs · finder

Detect & block this

O3 blocks bhsndler-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

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