### Comment:
What are some common methods used to distribute malware?

### REPLY:
One effective method used to distribute malware is through the use of botnets, which are networks of compromised computers controlled by a central command and control server. These botnets can be used to send out spam emails containing malicious attachments or links, or to launch distributed denial of service (DDoS) attacks. By harnessing the computing power of multiple infected computers, attackers can distribute malware on a large scale and make it difficult to trace the source.