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Malicious package

injectwanfooRubyGems

Advisory published Updated

injectwanfoo is a confirmed malicious RubyGems package (MAL-2026-7779) that executes malicious code on install (malicious version 0.0.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in injectwanfoo (RubyGems)

MAL-2026-7779
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall injectwanfoo

Malicious versions

1 flagged
0.0.2

Indicators of compromise (SHA-256)

7c47fdc1918b375c5e91008ad576831efe4e586b4a56fb1c327ffad86b6c6087
59f00b20de4adc51622c2da92968136c462814aa1d1332bc1b49108fbd12b144

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for injectwanfoo (version 0.0.2).

  2. If you installed it — respond

    Remove injectwanfoo 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 injectwanfoo 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. injectwanfoo on RubyGems has been identified as a malicious package (version 0.0.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-02430RLUA-2026-08234

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks injectwanfoo-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

injectwanfoo (RubyGems) malicious package — MAL-2026-7779 | O3 Security