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Malicious package

znowflake_clientRubyGems

Advisory published Updated

znowflake_client is a confirmed malicious RubyGems package (MAL-2024-10224) that executes malicious code on install (malicious versions 1.1.1, 1.1.2, 1.1.3…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in znowflake_client (RubyGems)

MAL-2024-10224
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall znowflake_client

Malicious versions

11 flagged
1.1.11.1.21.1.31.1.41.1.51.1.61.1.71.1.81.1.92.0.02.1.0

Indicators of compromise (SHA-256)

3cfea6ca7519bc610003f8cc86f57732ae75ecc8fe7c093a242f67c250d6d1e6
68dac0e7a16edcb59cf6c6606310372de40db78b2501b9227e7d80434c2530af
e0b3915d33258c430eeda400e8d9799916140c16894b00205c7277d83eafa5cd

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for znowflake_client (11 malicious versions).

  2. If you installed it — respond

    Remove znowflake_client 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.

  3. Did it already run?

    If znowflake_client 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. znowflake_client on RubyGems has been identified as a malicious package (versions 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, and 3 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-10375RLUA-2024-11218RLUA-2026-10254

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks znowflake_client-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.

Explore

znowflake_client (RubyGems) malicious package — MAL-2024-10224 | O3 Security