Summary

  • A large-scale “malvertising” campaign led to around one million Windows devices being infected, with hackers stealing login credentials, crypto coins and other sensitive information, according to Microsoft.
  • The campaign, which has been active since December, saw attackers plant malicious links on popular websites that silently downloaded malware from Microsoft’s own GitHub service.
  • Once on a device, the malware downloaded in stages, with the early parts gathering device-specific information before disabling anti-malware software and connecting the compromised computer to a command-and-control server.
  • Microsoft has called the campaign “sophisticated” and noted that the malware is highly tailored and repeatable.
  • The company has published extensive technical details in the hope that sysadmins can better protect their users and networks.

By Dan Goodin

Original Article