Security researchers have encountered new email-based targeted attacks that exploit a vulnerability in Microsoft Office to install a remote access Trojan horse program on Mac OS systems.
The first virus that targeted Macintosh computers, nVir, emerged in 1987 and remained a problem until 1991. It infected executable files on Macs, causing system issues like printing problems, application crashes, and slow response times. Then a OS resinstall won't do any good. That test alone, all but eliminates a defect in the computer. It also seems you aren't getting odd network traffic to/from your mac so It wouldn't make sense for it to be a DOS. By your statements here it almost has to be a problem in the router. Try assigning your mac a different IP through the router. Another likely symptom of the Search Marquis attack on a Mac is the surge of annoying alerts that say, ' Your computer is low on memory '. These warnings usually pop up shortly after system startup and instruct the user to close a few applications to free up some memory. The BadBunny worm dropped Ruby script viruses on Mac OS X systems, and displayed an indecent JPEG image of a man wearing a rabbit costume. The first financial malware for Mac was discovered. The gang behind the attacks developed both Windows and Mac versions of their OSX/RSPlug-A Trojan horse. Malwarebytes said there was a 400 percent increase in threats on Mac devices from 2018 to 2019, and found an average of 11 threats per Mac devices, which about twice the 5.8 average on Windows.
The rogue emails appear to target Tibetan activist organizations and distribute booby-trapped Microsoft Word documents that exploit a known remote code execution vulnerability in Microsoft Office for Mac, according to malware experts from security firm AlienVault.
'This is one of the few times that we have seen a malicious Office file used to deliver Malware on Mac OS X,' said AlienVault security researcher Jaime Blasco in a blog post on Tuesday.
Security researchers from Mac antivirus vendor Intego believe that the attacks might become more widespread. 'This malware is fairly sophisticated, and it is worth pointing out that the code in these Word documents is not encrypted, so any malware writer who gets copies of them may be able to alter the code and distribute their own versions of these documents,' they said in a blog post on Thursday.
'The attack will be very effective on those who have not updated their copies of Microsoft Office, or aren't running antivirus software,' the Intego researchers said.
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If the vulnerability is exploited successfully, the rogue Word files will install a previously unknown Mac OS X Trojan horse. The remote attackers can instruct this malware to download, upload and delete files, or to start a remote shell on the system. Stranger tickets mac os.
AlienVault believes that this attack was carried out by the same gang that last week distributed a similar Mac Trojan by exploiting a vulnerability in outdated Java installations.
This type of targeted attack, also known as spear phishing, has become common in recent years and is usually associated with government or corporate cyberespionage operations. Magnetobotty mac os. However, the vast majority of spear phishing emails have so far targeted Windows users.
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The rainsdowne players mac os. 'While, in the past, we did not see this type of attack targeting Macs, it is clear that the game has changed, and that we are entering a new period of Mac malware,' the Intego researchers said.
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Mac users are advised to keep the software installed on their computers up to date, especially the popular applications, and to run an antivirus program at all times. Several Mac antivirus products are available for free.
