A self-replicating program that spreads through networks without requiring user action.

A disguised software that appears useful but secretly installs malicious code on a system.

The ILOVEYOU malware, which spread via email attachments and overwrote user files.

A malicious program that infects a system and opens a backdoor for hackers, often posing as a legitimate app.

The Morris Worm, which spread across early internet networks, consuming system resources.

The Melissa malware, which spread through Microsoft Word documents via email.

A program that masquerades as a free game but secretly logs keystrokes and sends them to hackers.

A type of malware that spreads by copying itself into executable files but requires user execution.

A network-based malware that exploits vulnerabilities and spreads without needing user interaction.

A piece of malware that modifies host files and spreads only when the infected file is executed.

The Conficker malware, which exploited Windows vulnerabilities to spread across networks.

A malicious program that looks like an antivirus but actually installs spyware on the system.

A self-replicating malware that spreads via USB drives but does not require execution by the user.

A hacker distributes a fake software update that, when installed, gives the attacker remote access.

The Sasser malware, which spread through system vulnerabilities and caused Windows systems to crash.

A malicious script hidden inside a PDF file that activates when the file is opened.

The Zeus malware, which is designed to steal banking credentials by recording keystrokes.

A malware program that spreads through network shares and email attachments, slowing down internet traffic.

A keylogger disguised as a free productivity app that secretly records all keyboard inputs.