What malware has the primary traits of circulation and/or infection? Please describe each of them briefly.

Virus, worms

Explanation:

Worms can be transmitted through vulnerabilities of software. Computer worms could come as attachments in spam emails or other means. Once it is opened, files could automatically provide a link either to a malicious website or automatically download the computer worm. After it’s installed, the worm silently infects the machine without the user knowing.

Virus insert malicious code into the computer and users transfer these infected files to other devices. To spread viruses. Worms can reproduce by themselves and do not require user actions to spread.