Which versions of cinch_weatherman are malicious?

The following RubyGems versions of cinch_weatherman are flagged malicious: 1.0.5. Treat any of these as compromised.

How do I remediate cinch_weatherman if I installed it?

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

If cinch_weatherman 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 cinch_weatherman part of a known attack campaign?

Yes — cinch_weatherman is associated with the RLMA-2024-05636, RLUA-2024-10155, RLUA-2026-07927 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 cinch_weatherman across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for cinch_weatherman (version 1.0.5).

Malicious package

cinch_weathermanRubyGems

Advisory published Jun 25, 2024Updated Sep 24, 2026

cinch_weatherman is a confirmed malicious RubyGems package (MAL-2024-6830) that executes malicious code on install (malicious version 1.0.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in cinch_weatherman (RubyGems)

MAL-2024-6830

Immediate action

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

gem uninstall cinch_weatherman

Malicious versions

1 flagged

1.0.5

Indicators of compromise (SHA-256)

12f3fa3871b12cc2a9c31bdadcdf860da260e24bc254bf319d582ee92f3e8c93

2b4dcec72670b2e0c2290a94e0d86eae6443e635c1709604116b2daf380eb160

55679e7545c069772b95fed28a8b61d7ef788b32e8464bbf8c436b6fb0a59e8b

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for cinch_weatherman (version 1.0.5).
If you installed it — respond
Remove cinch_weatherman 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 cinch_weatherman 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. cinch_weatherman on RubyGems has been identified as a malicious package (version 1.0.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-05636RLUA-2024-10155RLUA-2026-07927

References

Credits

ReversingLabs · finder

Detect & block this

O3 blocks cinch_weatherman-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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