Soon after the release of HyperCard in 1987, computer viruses appeared that targeted the application. [1] The viruses were written in the HyperTalk programming language and typically spread by infecting the Home stack and then infecting other stacks from there. [2] [3]
Name of Virus | Year discovered | Notes |
---|---|---|
Dukakis | 1988 | First known HyperCard virus. [1] [4] Self-destructs after displaying a message encouraging people to vote for Michael Dukakis. [1] [3] |
3 Tunes (or HC) | 1991 [4] | First reported from Holland and Belgium. [4] On systems running the German Mac OS, the virus causes infected stacks to play three German folk tunes. [3] |
MerryXmas | 1991 [5] | Intended to simply propagate, but because of an error, the virus sometimes copies parts of other stack scripts along with its own code causing stacks to behave unexpectedly. Variants include Merry2Xmas, Lopez, and Crudshot. [3] |
HC 9507 | 1995 | Causes the word "Pickle" to be typed at the cursor insertion point. May also cause the computer to crash. [3] [6] |
Antibody | 1997 | Eradicates the MerryXmas virus and installs MerryXmas inoculation code into infected stacks. [3] |
Independance Day | 1997 | After July 4, 1997, unsuccessfully attempts to delete random lines of code from stacks. [3] |
Blink | 1998 | After January 1, 1999, causes infected stacks to blink. [3] |
Wormcode | 2000 | Originally posted to the usenet group "comp.sys.mac.hypercard" in a stack called "Font Preview". Aside from spreading, the virus does no damage. [3] |
A computer worm is a standalone malware computer program that replicates itself in order to spread to other computers. It often uses a computer network to spread itself, relying on security failures on the target computer to access it. It will use this machine as a host to scan and infect other computers. When these new worm-invaded computers are controlled, the worm will continue to scan and infect other computers using these computers as hosts, and this behaviour will continue. Computer worms use recursive methods to copy themselves without host programs and distribute themselves based on exploiting the advantages of exponential growth, thus controlling and infecting more and more computers in a short time. Worms almost always cause at least some harm to the network, even if only by consuming bandwidth, whereas viruses almost always corrupt or modify files on a targeted computer.
HyperCard is a software application and development kit for Apple Macintosh and Apple IIGS computers. It is among the first successful hypermedia systems predating the World Wide Web.
Malware is any software intentionally designed to cause disruption to a computer, server, client, or computer network, leak private information, gain unauthorized access to information or systems, deprive access to information, or which unknowingly interferes with the user's computer security and privacy. Researchers tend to classify malware into one or more sub-types.
In computing terminology, a macro virus is a virus that is written in a macro language: a programming language which is embedded inside a software application. Some applications, such as Microsoft Office, Excel, PowerPoint allow macro programs to be embedded in documents such that the macros are run automatically when the document is opened, and this provides a distinct mechanism by which malicious computer instructions can spread. This is one reason it can be dangerous to open unexpected attachments in e-mails. Many antivirus programs can detect macro viruses; however, the macro virus' behavior can still be difficult to detect.
HyperTalk is a discontinued high-level, procedural programming language created in 1987 by Dan Winkler and used in conjunction with Apple Computer's HyperCard hypermedia program by Bill Atkinson. Because the main target audience of HyperTalk was beginning programmers, HyperTalk programmers were usually called "authors" and the process of writing programs was known as "scripting". HyperTalk scripts resembled written English and used a logical structure similar to that of the Pascal programming language.
This timeline of computer viruses and worms presents a chronological timeline of noteworthy computer viruses, computer worms, Trojan horses, similar malware, related research and events.
Antivirus software, also known as anti-malware, is a computer program used to prevent, detect, and remove malware.
Linux malware includes viruses, Trojans, worms and other types of malware that affect the Linux family of operating systems. Linux, Unix and other Unix-like computer operating systems are generally regarded as very well-protected against, but not immune to, computer viruses.
The compilation of a unified list of computer viruses is made difficult due to their subsequent naming. To aid the fight against computer viruses and other types of malicious software, many security advisory organizations and developers of anti-virus software compile and publish lists of viruses. When a new virus appears, the rush begins to identify and understand it as well as develop appropriate counter-measures to stop its propagation. Along the way, a name is attached to the virus. As the developers of anti-virus software compete partly based on how quickly they react to the new threat, they usually study and name the viruses independently. By the time the virus is identified, many names have been used to denote the same virus.
ILOVEYOU, sometimes referred to as the Love Bug or Loveletter, was a computer worm that infected over ten million Windows personal computers on and after 5 May 2000. It started spreading as an email message with the subject line "ILOVEYOU" and the attachment "LOVE-LETTER-FOR-YOU.TXT.vbs". At the time, Windows computers often hid the latter file extension 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 activates the Visual Basic script. First, the worm inflicts damage on the local machine, overwriting random files, then, it copies itself to all addresses in the Windows Address Book used by Microsoft Outlook, allowing it to spread much faster than any other previous email worm.
Mobile malware is malicious software that targets mobile phones or wireless-enabled Personal digital assistants (PDA), by causing the collapse of the system and loss or leakage of confidential information. As wireless phones and PDA networks have become more and more common and have grown in complexity, it has become increasingly difficult to ensure their safety and security against electronic attacks in the form of viruses or other malware.
The MacMag virus, also known by various other names, is a computer virus introduced in 1988 by Richard Brandow, who at the time was editor and publisher of MacMag computer magazine in Montréal.
A computer virus is a type of malware that, when executed, replicates itself by modifying other computer programs and inserting its own code into those programs. If this replication succeeds, the affected areas are then said to be "infected" with a computer virus, a metaphor derived from biological viruses.
Koobface is a network worm that attacks Microsoft Windows, Mac OS X, and Linux platforms. This worm originally targeted users of networking websites such as Facebook, Skype, Yahoo Messenger, and email websites such as GMail, Yahoo Mail, and AOL Mail. It also targets other networking websites, such as MySpace, Twitter, and it can infect other devices on the same local network. Technical support scammers also fraudulently claim to their intended victims that they have a Koobface infection on their computer by using fake popups and using built-in Windows programs.
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 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 since the 2003 SQL Slammer worm.
Alureon is a trojan and rootkit created to steal data by intercepting a system's network traffic and searching for banking usernames and passwords, credit card data, PayPal information, social security numbers, and other sensitive user data. Following a series of customer complaints, Microsoft determined that Alureon caused a wave of BSoDs on some 32-bit Microsoft Windows systems. The update, MS10-015, triggered these crashes by breaking assumptions made by the malware author(s).
Stuxnet is a malicious computer worm first uncovered in 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 nuclear program of Iran. Although neither country has openly admitted responsibility, multiple independent news organizations recognize Stuxnet to be a cyberweapon built jointly by the United States and Israel in a collaborative effort known as Operation Olympic Games. The program, started during the Bush administration, was rapidly expanded within the first months of Barack Obama's presidency.
Dexter is a computer virus or point of sale (PoS) malware which infects computers running Microsoft Windows and was discovered by IT security firm Seculert, in December 2012. It infects PoS systems worldwide and steals sensitive information such as credit and debit card information.
A technical support scam, or tech support scam, is a type of scam in which a scammer claims to offer a legitimate technical support service. Victims contact scammers in a variety of ways, often through fake pop-ups resembling error messages or via fake "help lines" advertised on websites owned by the scammers. Technical support scammers use social engineering and a variety of confidence tricks to persuade their victim of the presence of problems on their computer or mobile device, such as a malware infection, when there are no issues with the victim's device. The scammer will then persuade the victim to pay to fix the fictitious "problems" that they claim to have found. Payment is made to the scammer via gift cards, which are hard to trace and have few consumer protections in place. Technical support scams have occurred as early as 2008. A 2017 study of technical support scams found that of the IPs that could be geolocated, 85% could be traced to locations in India, 7% to locations in the United States and 3% to locations in Costa Rica. Research into tech support scams suggests that millennials and those in generation Z have the highest exposure to such scams; however, senior citizens are more likely to fall for these scams and lose money to them. Technical support scams were named by Norton as the top phishing threat to consumers in October 2021; Microsoft found that 60% of consumers who took part in a survey had been exposed to a technical support scam within the previous twelve months. Responses to technical support scams include lawsuits brought against companies responsible for running fraudulent call centres and scam baiting.