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A macro virus can be spread through e-mail attachments, removable media, networks and the Internet, and is notoriously difficult to detect. [1] A common way for a macro virus to infect a computer is by replacing normal macros with a virus. The macro virus replaces regular commands with the same name and runs when the command is selected.
Dridex, also known as Bugat and Cridex, is a form of malware that specializes in stealing bank credentials via a system that utilizes macros from Microsoft Word. [5]The targets of this malware are Windows users who open an email attachment in Word or Excel, causing macros to activate and download Dridex, infecting the computer and opening the victim to banking theft.
These distribution methods include exploit kits, [11] Word and Excel attachments with malicious macros, [12] DOCM attachments, [13] and zipped JS attachments. [ 14 ] The general consensus among security experts to protect yourself from ransomware, including Locky, is to keep your installed programs updated and to only open attachments from ...
The new Emotet infections were delivered via TrickBot, to computers that were previously infected with TrickBot, and soon began sending malicious spam email messages with macro-laden Microsoft Word and Excel files as payloads. [15] On 3 November 2022, new samples of Emotet emerged attached as a part of XLS files attached within email messages.
The Melissa virus is a mass-mailing macro virus released on or around March 26, 1999. It targets Microsoft Word and Outlook-based systems and created considerable network traffic. The virus infects computers via email; the email is titled "Important Message From," followed by the current username. Upon clicking the message, the body reads ...
Its spread was halted by an OS upgrade that changed the format of the file status tables PERVADE used. Though non-malicious, "Pervading Animal" represents the first Trojan "in the wild". [12] The novel The Shockwave Rider by John Brunner is published, coining the word "worm" to describe a program that propagates itself through a computer ...
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A malicious Microsoft Excel file was downloaded, which allowed the attackers access to HSE systems. [13] The attackers gained more access over the following weeks. [13] The HSE antivirus software detected activity on 31 March, but could not block it as it was set to monitor mode. [13]