Worms
Self-replicating malware that spreads across networks without user interaction.
Understanding Worms
A computer worm is a type of self-replicating malware that spreads across networks without requiring human intervention. Unlike viruses, worms do not need to attach themselves to existing programs and can propagate autonomously, often exploiting vulnerabilities in operating systems, applications, or network protocols.
Notable Worm Attacks
Morris Worm (1988) – One of the first worms, infected 6,000 computers by exploiting Unix vulnerabilities.
ILOVEYOU Worm (2000) – Spread via email, affecting millions of computers worldwide.
Blaster Worm (2003) – Exploited Windows vulnerabilities, forcing system crashes and reboots.
Conficker Worm (2008) – Created a massive botnet of infected devices used for cyberattacks.
Stuxnet (2010) – A sophisticated worm targeting industrial control systems (ICS), particularly Iranian nuclear facilities.
Impact of Worm Infections
Data Corruption and Loss – Worms may modify, encrypt, or delete files.
Network Congestion – Rapid self-replication consumes bandwidth, slowing down networks or causing outages.
Unauthorized Access – Some worms include backdoors that allow attackers to remotely control infected systems.
Financial Loss – Organizations suffer downtime, remediation costs, and reputational damage.