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The macro virus replaces regular commands with the same name and runs when the command is selected. These malicious macros may start automatically when a document is opened or closed, without the user's knowledge. [2] Once a file containing a macro virus is opened, the virus can infect the system.
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.
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.
When the user opens the document, it appears to be full of gibberish, and includes the phrase "Enable macro if data encoding is incorrect," a social engineering technique. If the user does enable macros, they save and run a binary file that downloads the actual encryption Trojan, which will encrypt all files that match particular extensions ...
Adware is also a problem on the Mac, with software like Genieo, which was released in 2009, inserting ads into webpages and changing users' homepage and search engine. Malware has also been spread on Macs through Microsoft Word macros. MacOS, known for its robust security, has faced evolving challenges regarding malware over time.
Infects menu definition resource fork files. Mdef infects all Classic Mac OS versions from 4.1 to 6. Melissa: Mailissa, Simpsons, Kwyjibo, Kwejeebo Microsoft Word macro virus 1999-03-26 New Jersey: David L. Smith Part macro virus and part worm. Melissa, a MS Word-based macro that replicates itself through e-mail. Mirai Internet of Things DDoS 2016
February 16: Discovery of the first-ever malware for Mac OS X, a low-threat trojan-horse known as OSX/Leap-A or OSX/Oompa-A, is announced. Late March: Brontok variant N was found in late March. [45] Brontok was a mass-email worm and the origin for the worm was from Indonesia. June: Starbucks is a virus that infects StarOffice and OpenOffice.