What is WhatsApp VBS malware?

Malicious VBS scripts sent via WhatsApp that rename Windows tools, bypass UAC, and install backdoors using cloud payloads.

How does VBS malware bypass UAC on Windows?

By tampering with registry keys, weakening prompts, and repeatedly attempting elevated cmd launches until success.

Sometimes, via behavior detection. But renamed LOLBins often evade signatures – update and layer defenses.

📋 Compliance & Policy

Two billion WhatsApp users. One bad link. Microsoft's latest alert: VBS malware via chat that's dodging UAC like a pro.

Threat Digest Apr 03, 2026 3 min read 13 views

WhatsApp VBS malware uses renamed Windows tools and trusted clouds to bypass UAC silently. 𝕏
Campaign started late Feb 2026; blends social engineering with LOLBins for persistence. 𝕏
Unique risk: WhatsApp's massive user base makes it perfect for rapid spread – watch for variants. 𝕏

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#Microsoft Defender warning #UAC bypass #VBS script attack #WhatsApp malware #microsoft-defender #vbs-malware

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Originally reported by The Hacker News