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The new Apple Trojan "BlackHoleRat" sneaks itself in through OS X users' open back doors. It is currently in "beta" and its capabilities are being expanded.  (Source: Sophos Labs)

One of its capabilities is to pop up fake administrator password request windows as a phishing attempt  (Source: Sophos Labs)

The trojan even delivers humorous messages to users in current form.  (Source: Sophos Labs)

  (Source: Chris Moncus)
Malicious program still appears to be in "beta" form, unlike its Windows counterpart

Security researchers at Sophos Labs have discovered a naughty new trojan that's in the process of beta testing attack capabilities against the growing population of Mac users.

The trojan exploits open back doors in OS X to gain a good deal of access to the system.  It can be transmitted through a variety of vectors, including torrent files or seemingly legitimate download programs.  It could also be, in the future, delivered via the exploitation of browser flaws to perform "drive by downloads".

Once inside, the Trojan gets down to business, allowing the attacker to have their way with their Apple victim.  The attacker can plant text files on the desktop, force URLs to open, run shell commands, and pop up fake password windows in a phishing attempt.

They can also force the users machine shutdown or reboot. When a reboot is forced an amusing message pops up, informing:

I am a Trojan Horse, so i have infected your Mac Computer. I know, most people think Macs can't be infected, but look, you ARE Infected! I have full controll over your Computer and i can do everything I want, and you can do nothing to prevent it.

So, Im a very new Virus, under Development, so there will be much more functions when im finished.

The virus is a port of darkComent, a remote access trojan for Windows.  The new OS X versions has been dubbed "OSX/MusMinim-A", or "MusMinim" for short, by Sophos.  Its creators, however, call it BlackHoleRat.

Sophos believes its creators will likely expand its functionality now that the concept has been proven.  It will likely be loaded with far nastier tricks in the future.

Despite its obscurity, Apple's poor security track record virtually ensures that Apple OS X users back doors will be open in years to come.  And increasingly they may find malicious individuals looking to poke and prod their way inside.

Still Apple has been quite quiet in its direction to users to get an anti-virus program.  To this day it still tries to portray Windows as "virus-laden" and OS X as virus-free.  As a result of this ostrich-in-the-sand attitude, some users may fall victim of unwanted backdoor intrusion.

Apple has yet to comment on its users' latest infection or hint at how widespread it might be.


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RE: Wut?
By KoolAidMan1 on 3/1/2011 6:51:42 AM , Rating: 2
quote:
You're arguing semantics here. This is clear OS X malware, and it clearly could become what your definition of a virus is.


It is malware, but there are many kinds of malware. The term "virus" is erroneously used for types of malware that aren't necessarily viruses. What distinguishes a virus from a trojan is that a virus is self-replicating and self-propagating.

A virus is infectious malware. A trojan on the other hand is based around concealment, which in most cases is a malicious program that invites a user to run it. Any operating system is susceptible to a trojan. There will always be the opportunity for harmful software to fool a user into executing it. Modern operating system requiring users to elevate to admin/root is a huge step in the right direction, but nothing can stop someone from ignoring a UAC prompt or typing in their admin password even though they shouldn't.

You are arguing that this trojan is a virus, when I don't see evidence that this piece of malware fits the strict definition of what a virus is. If you want to use "virus" interchangeably with any kind of malware, be they trojans, rootkits, whatever, fine, but it is technically incorrect.


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