Which type of malware can spread across networks without attaching itself to a host file?

Correct option is B

A Worm is a type of malware that can spread across networks without needing to attach itself to a host file or program. Worms propagate by exploiting vulnerabilities in systems and can cause widespread damage by consuming bandwidth, disrupting network services, and sometimes corrupting data.
Important Key Points:
1. Worms spread autonomously over networks and do not require user action or attachment to files, unlike viruses.
2. They often exploit network vulnerabilities, causing system slowdowns or network congestion.
Knowledge Booster:
· Virus: A virus typically attaches itself to a host file and requires user action to spread.
· Trojan: A Trojan disguises itself as legitimate software but does not spread like a worm.
· Spyware: Used to monitor user activity but does not spread autonomously.
· Adware: Displays unwanted ads but does not replicate or spread across networks like worms.