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Alexa Illustrates Web Security Risks (part 1)

ID: 7dbd7df0-5602-5673-8ae4-e2dc0e1be636

STIX ID: report--7dbd7df0-5602-5673-8ae4-e2dc0e1be636

Feed Name: Zscaler Security Research Blog

Threat Score
55/100

Date Published: 2025-04-02

Date Updated: 2026-05-01

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This blog analysis of Alexa's top 1M websites finds multiple malicious entries distributing FakeAV/scareware and adware (examples include antivirus-defender.ru and freefilesoft.net), notes listings in SURBL/Google SafeBrowsing, and highlights an unusual SMS-based payment mechanism used to deliver malware; the author plans further investigation of drive-by-downloads among popular sites.

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