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Threat Actors & CampaignsEmerging1 sourceAug 31, 2026 · 17:43via CyberInsider

New RevStealer malware spreads as fake Claude Opus 5 desktop app

Brief

RevStealer malware is being distributed through trojanized Electron applications, including a GitHub project masquerading as a free desktop version of Anthropic’s Claude Opus 5. The malware steals browser data, password-manager files, cryptocurrency wallets, credentials, and documents while using multiple techniques to reduce its footprint and evade analysis.

Morphisec analyzed the campaign’s Electron loader and decrypted …

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