agentic-call-controlRubyGems
Advisory published Updated
agentic-call-control is a confirmed malicious RubyGems package (MAL-2026-18763) that steals credentials and exfiltrates sensitive data (malicious version 1.1.8). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in agentic-call-control (RubyGems)
What this malware does
The gem's native extension script executes during gem install and harvests installer-side data without consent. It collects host identifiers (current working directory, home directory, hostname, login name) and reads the contents of /etc/resolv.conf, /etc/passwd, and /etc/hosts, serializes them as JSON, and POSTs the payload over TLS to the hardcoded host k6rqb5d1inuytrro2u6arv87vy1vplda.oastify.com on port 443 using TCPSocket/OpenSSL. A DNS lookup to the same subdomain is also issued as an out-of-band beacon. The destination is a Burp Collaborator subdomain — attacker-controlled out-of-band interaction infrastructure unrelated to any declared publisher or build dependency. There is no native source tree or build logic that would require this network activity; the extension script's sole effect on install is reconnaissance exfiltration.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for agentic-call-control (version 1.1.8).
If you installed it — respond
agentic-call-control 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 agentic-call-control 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
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks agentic-call-control-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.