DarkSpectre Hackers Infect 8.8 Million Users via Major Browser Malware Campaigns

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DarkSpectre Hackers Infect 8.8 Million Users via Major Browser Malware Campaigns

First seen 31 Dec 2025, 18:19 UTC • •30.6

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ThreatCluster •March 12, 2026 at 13:27 UTC

DarkSpectre, a Chinese threat actor, has infected over 8.8 million users of Chrome, Edge, and Firefox through coordinated malware campaigns over seven years. The group's operational sophistication is notable, as they executed multiple distinct campaigns simultaneously, targeting popular web browsers.

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Threat Graph

4 entities, 2 inferred relationships (STIX 2.1).

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Technique (1)

Malware

Affected Platform (2)

Edge
Firefox

Tool (1)

Chrome

Relationships

Malware targets Edge
Malware targets Firefox

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