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Malicious package

knot-activesupport-loggerRubyGems

Advisory published Updated

knot-activesupport-logger is a confirmed malicious RubyGems package (MAL-2026-3630) that steals credentials and exfiltrates sensitive data (malicious version 7.1.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in knot-activesupport-logger (RubyGems)

MAL-2026-3630
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall knot-activesupport-logger

What this malware does

This package is a malicious packages part of the Go BufferZoneCorp and RubyGems knot-theory clusters. The packages in this cluster steal credentials, set up ssh access and tamper with build/workflow environmetn variables.

Malicious versions

1 flagged
7.1.6

Indicators of compromise (SHA-256)

a4e4f74e90479d472a307d311d48214827e21cf93ecf9b0b62ff2cb72adb2c9e

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for knot-activesupport-logger (version 7.1.6).

  2. If you installed it — respond

    knot-activesupport-logger is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If knot-activesupport-logger 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. knot-activesupport-logger on RubyGems has been identified as a malicious package (version 7.1.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Detect & block this

O3 blocks knot-activesupport-logger-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

knot-activesupport-logger (RubyGems) malicious package — MAL-2026-3630 | O3 Security