New Vishing Attack Exploits Microsoft Teams and QuickAssist to Deploy .NET Malware

December 9, 2025

A sophisticated vishing campaign has emerged that combines social engineering with legitimate Microsoft tools to establish command execution chains leading to multi-stage .NET malware deployment.

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New Vishing Attack Exploits Microsoft Teams and QuickAssist to Deploy .NET Malware

North Korea-linked Actors Exploit React2Shell to Deploy New EtherRAT Malware

Changing the physics of cyber defense

Four Threat Clusters Using CastleLoader as GrayBravo Expands Its Malware Service Infrastructure

North Korean hackers exploit React2Shell flaw in EtherRAT malware attacks