What causes a worm virus?

Computer worms are among the most common types of malware. They spread over computer networks by exploiting operating system vulnerabilities . Worms typically cause harm to their host networks by consuming bandwidth and overloading web servers. Computer worms can also contain “payloads” that damage host computers.

For example with the WannaCry ransomware or Petya / Not-Petya ransomware . These have a worm component so that the malware can replicate and spread through back doors in other systems in the network.

Worms are a self-replicating type of malware (and a type of virus) that enter networks by exploiting vulnerabilities, moving quickly from one computer to another .

Worms can modify and delete files, and they can even inject additional malicious software onto a computer . Sometimes a computer worm’s purpose is only to make copies of itself over and over — depleting system resources, such as hard drive space or bandwidth, by overloading a shared network.28 Ağu 2019