Archives - History of Antivirus


On this day in history – Ransomware Locky infects several million computers

On February 18, 2016, the Hollywood Presbyterian Medical Center paid a $17,000 ransom in the form of bitcoins for the decryption key for patient data. The Hospital was infected by ransomware Locky, it was the delivery of an email attachment disguised as a Microsoft Word invoice that contained malicious macros. This has led to increased […]

On this day in history – Happy99 worm appears spreading through email and usenet

January 20, 1999: The Happy99 worm first appeared. It invisibly attaches itself to emails, displays fireworks to hide the changes being made, and wishes the user a happy New Year. It modifies system files related to Outlook Express and Internet Explorer (IE) on Windows 95 and Windows 98.

On this day in history – Santy worm uses Google to spread across the Internet

December 20, 2008: Within 24 hours of its release, about 30,000 to 40,000 websites were attacked by Santy. The worm, which exploited vulnerability in phpBB software, holds a record of spreading worldwide within three hours of its release. It caused writable files (of formats such as .php and .html) on the infected servers to display […]

The term ‘virus’ is coined by Frederick Cohen

In November 1983 he used “virus” to describe self-replicating computer programs. In 1984 Cohen uses the phrase “computer virus” – as suggested by his teacher Leonard Adleman – to describe the operation of such programs in terms of “infection”. He defines a “virus” as “a program that can ‘infect’ other programs by modifying them to […]

On this day in history – The Conficker computer Worm infects Microsoft systems

November 21, 2008: Computer worm Conficker infects anywhere from 9 to 15 million Microsoft server systems running everything from Windows 2000 to the Windows 7 Beta. The French Navy, UK Ministry of Defence (including Royal Navy warships and submarines), Sheffield Hospital network, German Bundeswehr and Norwegian Police were all affected. Microsoft sets a bounty of […]

Early Antivirus solutions

In 1987 appearance of Lehigh virus (discovered at its namesake university), boot sector viruses such as Yale from USA, Stoned from New Zealand, Ping Pong from Italy, and appearance of first self-encrypting file virus, Cascade. Lehigh was stopped on campus before it spread to the wild, and has never been found elsewhere as a result. […]