Over 4 Million Browsers Infected by China-Based Spyware Campaign

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Over 4 Million Browsers Infected by China-Based Spyware Campaign

First seen 10 Dec 2025, 07:47 UTC • •33.3

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ThreatCluster •March 12, 2026 at 13:27 UTC

A China-based threat actor known as 'ShadyPanda' has infected over 4 million browsers through malicious browser extensions. These extensions, marketed as legitimate applications like 'WeTab', were distributed to users of Google Chrome and Microsoft Edge, leading to widespread malware deployment.

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Threat Graph

3 entities, 1 inferred relationships (STIX 2.1).

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Technique (1)

Malware

Affected Platform (1)

Microsoft Edge

Tool (1)

Google Chrome

Relationships

Malware targets Microsoft Edge

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