Browser-based malware campaign targets cryptocurrency users
Cisco Talos reports a criminal campaign targeting cryptocurrency traders by convincing users to paste or install malicious JavaScript in their browsers. The scheme uses Google Sheets and Docs to host and distribute the code, which then intercepts crypto transactions by modifying deposit addresses and displaying fake bonuses. Victims are lured via messages on Telegram, DarkForums, and paste sites, often under the pretext of exploiting a non-existent API vulnerability for profit.
- Campaign abuses Google Sheets and Docs for C2
- Targets cryptocurrency site users via social engineering
- Victims install JavaScript through Chrome or Tampermonkey
- Malicious script skims deposit addresses and clipboard
- Lures spread through Telegram and darknet forums
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