Poisoned Ruby Gems and Go Modules Exploit CI Pipelines for Credential Theft

A new software supply chain attack campaign has been observed using sleeper packages as a conduit to subsequently push malicious payloads that enabled credential theft, GitHub Actions tampering, and SSH persistence.
The activity has been attributed to the GitHub account “BufferZoneCorp,” which has published a set of repositories that are associated with malicious Ruby gems and Go modules. As of