Malware
Computer Worm
Also known as: Network worm, Internet worm
Definition
Self-replicating malware that propagates across networks autonomously, without requiring a host file or user interaction.
Examples
- WannaCry, a ransomware worm exploiting EternalBlue in SMBv1.
- Stuxnet, a worm that targeted Iranian centrifuges via USB and network paths.
Related terms
Computer Virus
Malicious code that inserts copies of itself into other programs or files and executes when the host is run.
EternalBlue (CVE-2017-0144)
An NSA-developed exploit for a 2017 Microsoft SMBv1 remote code execution vulnerability, leaked by the Shadow Brokers and used by WannaCry and NotPetya.
Ransomware
Malware that encrypts a victim's data or locks systems and demands payment in exchange for restoring access.
Fork Bomb
A denial-of-service technique in which a process repeatedly forks itself, exhausting process tables, memory, and CPU on the host.
Network Segmentation
Network Segmentation — definition coming soon.
Malware
Any software intentionally designed to disrupt, damage, or gain unauthorized access to computers, networks, or data.