Which versions of seed-phrase-validator are malicious?

The following RubyGems versions of seed-phrase-validator are flagged malicious: 0.9.1. Treat any of these as compromised.

How do I remediate seed-phrase-validator if I installed it?

seed-phrase-validator 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.

I already installed seed-phrase-validator — how do I know if it already compromised me?

If seed-phrase-validator 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 seed-phrase-validator part of a known attack campaign?

Yes — seed-phrase-validator is associated with the IN-MAL-2026-021356 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 seed-phrase-validator across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for seed-phrase-validator (version 0.9.1).

Malicious package

seed-phrase-validatorRubyGems

Advisory published Oct 11, 2026Updated Oct 13, 2026

seed-phrase-validator is a confirmed malicious RubyGems package (MAL-2026-17794) that steals credentials and exfiltrates sensitive data (malicious version 0.9.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in seed-phrase-validator (RubyGems)

MAL-2026-17794

Immediate action

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

gem uninstall seed-phrase-validator

What this malware does

The gem declares a native extension but ships no C/C++/Rust source. extconf.rb exists solely to execute at gem install time. It decodes a base64-encoded Ruby payload and runs it via eval inside a detached fork (Process.setsid, randomized sleep of 1200+rand(1200) seconds) so execution survives the install process. The decoded payload opens a TCP socket to the hardcoded bare IP 45.138.12.177:8089 and bridges it to /bin/sh, giving an interactive remote shell on the installer's host. Execution is gated by anti-analysis checks that skip CI runners, ephemeral/sandbox hosts, generated usernames, analysis paths, and low-uptime machines, firing only when developer artifacts such as ~/.ssh, ~/.gitconfig, ~/.npmrc, ~/.gem/credentials, or ~/.bundle are present on the host. Package identity is inconsistent: the gem is named seed-phrase-validator, the README is titled bitcoin-rpc-lite, and the makefile target is bitcoin_rpc_lite_native, with no matching native sources in the tree.

The OpenSSF Package Analysis project identified 'seed-phrase-validator' @ 0.9.1 (rubygems) as malicious.

It is considered malicious because:

The package executes one or more commands associated with malicious behavior.

Malicious versions

1 flagged

0.9.1

Indicators of compromise (SHA-256)

fb8d12a066c24d672bf16efe57267c46c727592ee21beb0e2accb3bb6e4bfb3a

260c8de6b9fe5e7e977be76b41bc4f7378162aec30f7ef564a9c1760c1b64344

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for seed-phrase-validator (version 0.9.1).
If you installed it — respond
seed-phrase-validator 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.
Did it already run?
If seed-phrase-validator 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. seed-phrase-validator on RubyGems has been identified as a malicious package (version 0.9.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-021356

References

rubygems.org

Credits

Amazon Inspector · finder
OpenSSF: Package Analysis · finder

Detect & block this

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

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database