Feeds

Mac malware uses Windows-style PDF camouflage ruse

Pops open fanboi backdoors as they look at Chinese island

Security for virtualized datacentres

Mac malware creators are adopting Windows malware camouflage trickery in a bid to trick users into running their malicious creations.

Boobytrapped PDF files have long been a problem for Windows users. The OSX/Revir-B Trojan reapplies this approach towards Mac fans, who may be less familiar with the ruse.

The malware payload is an Macintosh application file that poses as a PDF. If opened, the file presents a Chinese language document concerning the disputed Diaoyu (Senkaku) Islands. Both China and Japan claim sovereignty of the disputed territory.

While users are perusing the text the malware attempts to install a backdoor Trojan horse.

The malware was submitted to VirusTotal, possibly after the original author tested to see whether it was detected by security firms. VirusTotal routinely samples files submitted through its service to security firms, who have began analysing the code.

"This malware may be attempting to copy the technique implemented by Windows malware, which opens a PDF file containing a ".pdf.exe" extension and an accompanying PDF icon," according to virus analysts at net security firm F-Secure.

"The sample in our hands does not have an extension or an icon yet. However, there is another possibility … extension and icon could have been lost when the sample was submitted to us. If this is the case, this malware might be even stealthier than in Windows because the sample can use any extension it desires."

It may be that the malware was designed to be distributed via email but this is unclear.

Mistakes in the code means that the malware fails to execute, according to net security firm Sophos, adding that there is no doubt the file is malicious. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
NASTY SSL 3.0 vuln to be revealed soon – sources (Update: It's POODLE)
So nasty no one's even whispering until patch is out
Russian hackers exploit 'Sandworm' bug 'to spy on NATO, EU PCs'
Fix imminent from Microsoft for Vista, Server 2008, other stuff
Forget passwords, let's use SELFIES, says Obama's cyber tsar
Michael Daniel wants to kill passwords dead
FBI boss: We don't want a backdoor, we want the front door to phones
Claims it's what the Founding Fathers would have wanted – catching killers and pedos
Kill off SSL 3.0 NOW: HTTPS savaged by vicious POODLE
Pull it out ASAP, it is SWISS CHEESE
Facebook slurps 'paste sites' for STOLEN passwords, sprinkles on hash and salt
Zuck's ad empire DOESN'T see details in plain text. Phew!
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Win a year’s supply of chocolate
There is no techie angle to this competition so we're not going to pretend there is, but everyone loves chocolate so who cares.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.