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The Emergence of Antivirus and Olympics Scams

ID: c45eeeb8-5bc2-5181-8207-98c081b244da

STIX ID: report--c45eeeb8-5bc2-5181-8207-98c081b244da

Feed Name: Zscaler Security Research Blog

Threat Score
70/100

Date Published: 2025-04-02

Date Updated: 2026-05-01

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Zscaler ThreatLabZ details a surge of COVID-19-themed malicious activity: numerous newly registered domains and phishing sites, fake mobile apps and home-test storefronts, and active malware distribution (Emotet, TrickBot, AzoRult, SpyGate, etc.). The report highlights credential-harvesting pages, malicious attachments (e.g., covid.exe), abuse of legitimate resources (map pages), observed telemetry (~30,000 cloud hits), and urges caution and reliance on WHO/CDC guidance.

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