How a Layered Botnet Stole Credentials and Sent Spam

Summary

The transcript describes a botnet that infected Windows machines to send spam, searched disks and network traffic for email addresses and passwords, and relayed data through repeaters to protected command-and-control servers.

Key points

• The botnet infected Windows machines, turning them into bots that sent spam.
• It scanned infected machines’ hard drives and sniffed network traffic for email addresses and passwords.
• Collected information was relayed through intermediate bots to command-and-control servers and the botmaster.
• The described architecture had spam bots at its base, repeaters passing information, and a protector group hiding the servers.