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Did COVID Cancel Christmas for Cybercriminals?

ID: 931cbd21-bc64-54b9-a3d1-f8b474f14746

STIX ID: report--931cbd21-bc64-54b9-a3d1-f8b474f14746

Feed Name: Zscaler Security Research Blog

Threat Score
75/100

Date Published: 2025-04-02

Date Updated: 2026-05-01

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ThreatLabZ reports on early-2021 activity for major cybercrime malware families (Emotet, Trickbot, Dridex, Qakbot, ZLoader), describing campaign timelines, observed delivery methods (reply-chain spam, malicious Office/ZIP attachments, DLL loaders, exploit kits), a recent Emotet law-enforcement takedown with risk of resurrection, and continued distribution chains that enable ransomware and credential theft targeting US/EU financial institutions.

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