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macOS malware includes viruses, trojan horses, worms and other types of malware that affect macOS, Apple's current operating system for Macintosh computers. macOS (previously Mac OS X and OS X) is said to rarely suffer malware or virus attacks, [1] and has been considered less vulnerable than Windows. [2]
The Silver Sparrow computer virus is malware that runs on x86- and Apple M1-based Macintosh computers. [1] [2] Engineers at the cyber security firm Red Canary have detected two versions of the malware in January and February 2021. [3]
Oracle, the company that develops Java, fixed the vulnerability exploited to install Flashback on February 14, 2012. [8] However, at the time of Flashback's release, Apple maintained the Mac OS X version of Java and did not release an update containing the fix until April 3, 2012, [12] after the flaw had already been exploited to install Flashback on 600,000 Macs. [13]
MDEF was a computer virus affecting Macintosh machines. There are four known strains. The first, MDEF A (aka Garfield), was discovered in May 1990. Strains B (aka Top Cat), C, and D were discovered in August 1990, October 1990, and January 1991, respectively.
The Oompa-Loompa malware, also called OSX/Oomp-A or Leap.A, is an application-infecting, LAN-spreading worm for Mac OS X, discovered by the Apple security firm Intego on February 14, 2006. [1] Leap cannot spread over the Internet, and can only spread over a local area network reachable using the Bonjour protocol.
SevenDust is a computer virus that infects computers running certain versions of the classic Mac OS. It was first discovered in 1998, [1] [2] and originally referred to as 666 by Apple. SevenDust is a polymorphic virus, with some variant also being encrypted. [1] It spreads by users running an infected application program (executable). [3]
Fileless malware is a variant of computer related malicious software that exists exclusively as a computer memory-based artifact i.e. in RAM.It does not write any part of its activity to the computer's hard drive, thus increasing its ability to evade antivirus software that incorporate file-based whitelisting, signature detection, hardware verification, pattern-analysis, time-stamping, etc ...
Mac Defender (also known as Mac Protector, Mac Security, [1] Mac Guard, [2] Mac Shield, [3] and FakeMacDef) [4] is an internet rogue security program that targets computers running macOS. The Mac security firm Intego discovered the fake antivirus software on 2 May 2011, with a patch not being provided by Apple until 31 May. [ 5 ]