computer virus
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computer system include:
Deletion of files Modification of files Uploading of files Downloading of files Installation of software (including other malware) Data Theft (e.g. passwords, security codes, credit card information) Use of the machine as part of a Botnet (e.g. to perform Distributed Denial-of-service (DDoS) attacks) Keystroke logging Viewing the user’s screen
An example of a Trojan horse attack is one that was reported in 1999:
This Trojan horse was distributed using email. Reports suggest that it was widely distributed and that there were several versions. The email sent to distribute the Trojan horse purported to be from Microsoft Corporation and to offer a free upgrade for Microsoft Internet Explorer. The email did not originate from Microsoft Corporation nor did it provide an upgrade for Microsoft Internet Explorer. The Trojan horse was an
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