Microsoft Warns of WhatsApp Attachments Spreading Backdoor on Windows PCs

Microsoft warns of a WhatsApp attachments spreading VBS malware that installs backdoors on Windows PCs, giving hackers remote access and control systems...

Microsoft Warns of WhatsApp-Delivered VBS Malware Hijacking Windows via UAC Bypass

Microsoft is calling attention to a new campaign that has leveraged WhatsApp messages to distribute malicious Visual Basic Script VBS files. The activity, beginning in late February 2026, leverages these scripts to initiate a multi-stage infection chain for establishing persistence and enabling...

WhatsApp malware campaign delivers VBScript and MSI backdoors

In this article 1. Attack chain overview 2. Mitigation and protection guidance 3. Hunting queries 4. Indicators of compromise Microsoft Defender Experts observed a campaign beginning in late February 2026 that uses WhatsApp messages to deliver malicious Visual Basic Script VBS files. Once execute...