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Malicious package

lf295s4RubyGems

Malicious code in lf295s4 (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2026-8020
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall lf295s4

Malicious versions

1 flagged
0.0.306304

Indicators of compromise (SHA-256)

7d4ee2e8bfe840028ea6f1b1b610a8c15427e262036c90b65b3f59b2b42593f8

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for lf295s4 (version 0.0.306304). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging lf295s4 across your stack and pipelines.

  2. If you installed it — respond

    Remove lf295s4 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 lf295s4 was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks lf295s4 before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. lf295s4 on RubyGems has been identified as a malicious package (version 0.0.306304 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-02671

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks lf295s4-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.

lf295s4 (RubyGems) malicious package — MAL-2026-8020 | O3 Security