Four Threat Clusters Using CastleLoader as GrayBravo Expands Its Malware Service Infrastructure
Cybersecurity researchers have identified four separate threat clusters using a malware loader called CastleLoader, reinforcing earlier assessments that this tool operates under a malware-as-a-service (MaaS) model, providing capabilities to multiple cybercriminal groups. The operator behind CastleLoader has been designated GrayBravo by Recorded Future’s Insikt Group, previously tracked as TAG-150. According to an analysis published by […]









