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Sophos video shows Mac trojan caught in the act


Apple Mac malware: Caught on camera from Sophos Labs on Vimeo.

It's not every day that you can watch Mac malware in action, but the team at Sophos Labs has put together the demonstration video above; it shows a malicious installer downloaded from a site pretending to serve up an HD video player, which actually carries the RSPlug-F trojan. Even though Mac users would still have to provide admin credentials to install the application (unlike Windows users, who might catch the Zlob malware just by visiting the webpage), it would be perfectly natural to go ahead and authenticate after downloading an installer... but not a good idea in this case. The fake site and bogus application are appearing in two versions, one billed as MacCinema and another trying to steal the goodwill of a legitimate Windows app called HDTV Player (the real app is from blazevideo.com).

RSPlug-F does try to change your DNS settings to point at bad-guy controlled servers, which could conceivably result in you being redirected to malicious or phony sites; however, if your ISP is on the ball, those bogus DNS servers are already blocked. The only way to catch this bit of malware is via the installer, but it's easy to see how an innocent Mac user might be fooled by the convincing-seeming download site.

[H/T Ars Technica Infinite Loop]



Apple Mac malware: Caught on camera from Sophos Labs on Vimeo. It's not every day that you can watch Mac malware in action, but the...
 

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Paul Sullivan

Does anyone know if this exploit would truly work hands-free on a Windows machine running Vista or Windows7 or would there be a UAC prompt for administrative rights just like the " provide admin credentials " requirement on Mac OS X?

March 27 2009 at 9:17 AM Report abuse rate up rate down Reply
RJHD3

(unlike Windows users, who might catch the Zlob malware just by visiting the webpage)

Come on. I read TUAW for interesting, relevant, accurate articles. Not for inaccurate, ill-informed, fanboy pandering. Of all the things that Mac users have to brag about, better security in Safari is absolutely not one of them.

Safari has known, significant vulnerabilities on both the Windows and MacOS platform. While obscurity has prevented widespread exploits, it won't last forever.

To site one of many sources on the topic:
http://voices.washingtonpost.com/securityfix/2009/03/mac_os_x_top_target_in_browser.html?hpid=sec-tech

To quote the punch-line:

Both the Firefox and Safari vulnerabilities that he proved were exploited on a Mac OS X system. The German hacker said the latest versions of both Firefox and IE take full advantage of features built in to Windows Vista that make it far more difficult to reliably exploit than on the current version of OS X. Those features, including "data execution prevention" (DEP) and "address space layout randomization," (ASLR) don't appear to be properly implemented between OS X and versions of Safari and Firefox built for that operating system, Nils said.

Next time, try to keep it informed and honest.

March 26 2009 at 8:00 PM Report abuse rate up rate down Reply
4 replies to RJHD3's comment
Julian_dunbar

solution: program your router to use OpenDNS and use VLC for all your video watching needs..

March 26 2009 at 3:55 PM Report abuse rate up rate down Reply
1 reply to Julian_dunbar's comment
mcdermd

Perian, Flip4Mac and Flash are all any normal OS X user should ever need.

March 26 2009 at 4:32 PM Report abuse rate up rate down Reply
jbelkin

this is why FLASH is pointless - anything requiring a plug in that requires updating - dumb as rocks. Anything on the web that requires users to jump through hoops is pointless ... yea, yea, and a pro burglar can break into my house in 8 weeks, point NOT taken. I'll be sure and watch my mac if I'm in a lab at these viruses places - otherwise, zero for 9 years and 60 million OSX users ...

March 26 2009 at 3:23 PM Report abuse rate up rate down Reply
uptnjeff

And what they DON'T show you is that the .dmg may have malware attached, you'd still have to type in your password to actually install it to have any affect on your computer.

Granted, if it were me, I'd most likely type the password w/o a second thought, but I'd have been weary at the .exe file for sure, and would have stopped there.

Ok.. so of the BILLIONS of web sites out there, we have ONE that looks bad for Macs.

March 26 2009 at 3:23 PM Report abuse rate up rate down Reply
1 reply to uptnjeff's comment
michas_pi

One website is all it takes.

March 26 2009 at 8:20 PM Report abuse rate up rate down Reply
Kmob

If you use IE7 or Firefox, you wouldn't get the malware on a PC either. 99.9% of malware comes from installing things on a PC, just how it happens on a Mac. TUAW just doesn't want to admit that Windows has become secure now.

March 26 2009 at 2:29 PM Report abuse rate up rate down Reply
Tino Klumpen

I'm really sure they made this trojan themselves.
I would if I were Sophos, Intego, Symantec or Norton.
$$, and they happily lived ever after...

March 26 2009 at 2:28 PM Report abuse rate up rate down Reply
Erik

"...and that's why you need to be very careful what you download off the net, whether you're a Windows user or a Mac user."

While the above statement may be true in some sense, I think that it's a bit disingenuous to lump Windows and Mac OS X together in that way, as if there is a widespread epidemic of malware, downloadable from the web, that Mac users need to be wary of. That privilege belongs, almost exclusively, to Windows users.

March 26 2009 at 2:02 PM Report abuse rate up rate down Reply
Bryan

And someone might break into my house if I leave the keys on the door.

March 26 2009 at 2:01 PM Report abuse rate up rate down Reply
1 reply to Bryan's comment
rotovibe

Actually any "decent" burglar will be suspicious of a door with keys inserted. That's kinda reverse psychology. Aaaaaand may be, that's why we haven't that much of a threat with macs: that lack of paranoia.

March 27 2009 at 2:56 AM Report abuse rate up rate down Reply
Adam Franke

How is this even possibly considered a virus or trojan? All it does is change DNS settings, which would have little effect anyways if you use a half decent ISP. Now Conficker, that's a damn virus. Here's what the latest version does: "Conficker.C, which surfaced earlier this month, shuts down security services, blocks computers from connecting to security Web sites, and downloads a Trojan. It also reaches out to other infected computers via peer-to-peer networking and includes a list of 50,000 different domains, of which 500 will be contacted by the infected computer on April 1 to receive updated copies or other malware or instructions. Previous Conficker variants were written to connect to 250 domains a day."

So how is that at all comparable to what the video was showing?

March 26 2009 at 1:44 PM Report abuse rate up rate down Reply
1 reply to Adam Franke's comment
Dave

This does fall under the category of a Trojan horse, not because of what it does but because of how it operates.

There are a lot of ISPs out there and not all of them block every malicious DNS server. By re-routing DNS requests the Trojan can essentially send the user wherever the Trojan-author wants. This can lead to seemingly countless other crimes ranging from DOS attacks to identify theft.

March 26 2009 at 1:53 PM Report abuse rate up rate down Reply
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