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

### REPLY:
One common technique to distribute malware is through USB flash drives. By infecting a USB drive with malware and leaving it in a public place, unsuspecting individuals may plug it into their computers, unknowingly executing the malware. Another technique is to exploit software vulnerabilities in popular applications, such as PDF readers or web browsers, by sending specially crafted files or URLs that trigger the execution of malicious code.