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

### REPLY:
One common technique to distribute malware is through email spam campaigns. By crafting convincing emails with malicious attachments or links, attackers can trick unsuspecting users into downloading and executing malware. Another method is through malvertising, where legitimate ad networks are compromised to display malicious advertisements that can infect users' devices. Furthermore, attackers can also exploit software vulnerabilities to inject malware into legitimate websites, which can then be unknowingly downloaded by visitors.