Blutter is a tool tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed June 5, 2026; most recent activity June 5, 2026.
A new malware campaign, dubbed Operation FlutterBridge, is targeting macOS users by distributing a backdoor known as FlutterShell through malicious ads. Hackers are using Google Ads to promote fake desktop applications…