Windows malware

ransomware cyberattack

Stuxnet is a malicious computer worm first uncovered on 17 June 2010 and thought to have been in development since at least 2005. Stuxnet targets supervisory control and data acquisition (SCADA) systems and is believed to be responsible for causing substantial damage to the Iran nuclear program after it was first installed on a computer at the Natanz Nuclear Facility in 2009. Although neither the United States nor Israel has openly admitted responsibility, multiple independent news organizations claim Stuxnet to be a cyberweapon built jointly by the two countries in a collaborative effort know

ILOVEYOU, sometimes referred to as the Love Bug or Loveletter, was a computer worm that infected over ten million Windows personal computers beginning on 4 May 2000. It started spreading as an email message with the subject line "ILOVEYOU" and the attachment "LOVE-LETTER-FOR-YOU.TXT.vbs". Windows computers often hide the VBS file extension (a type of interpreted file) by default, because it is an extension for a file type that Windows knows, leading unwitting users to think it was a normal text file. Opening the attachment activated the VBScript script. First, the worm inflicted damage on the

Conficker, also known as Downup, Downadup and Kido, is a computer worm targeting the Microsoft Windows operating system that was first detected in November 2008. It uses flaws in Windows OS software (MS08-067 / CVE-2008-4250) and dictionary attacks on administrator passwords to propagate while forming a botnet, and has been unusually difficult to counter because of its combined use of many advanced malware techniques. The Conficker worm infected millions of computers including government, business and home computers in over 190 countries, making it the largest known computer worm infection sin

Mydoom was a computer worm that targeted computers running Microsoft Windows. It was first sighted on January 26, 2004. It became the fastest-spreading e-mail worm ever, exceeding previous records set by the Sobig worm and ILOVEYOU, a record which as of 2026 has yet to be surpassed.

a computer worm

computer worm

computer worm

computer worm

download manager and malware application for Windows

Brontok is a computer worm running on Microsoft Windows. It is able to disperse by e-mail. Variants include:

OpenCandy was an adware module and a potentially unwanted program classified as malware by many anti-virus vendors. They flagged OpenCandy due to its undesirable side-effects. It was designed to run during installation of other desired software. Produced by SweetLabs, it consisted of a Microsoft Windows library incorporated in a Windows Installer. When a user installed an application that had bundled the OpenCandy library, an option appeared to install software it recommended based on a scan of the user's system and geolocation. Both the option and offers it generated were selected by default

TeslaCrypt was a ransomware trojan. It is now defunct, and its master key was released by the developers.