Mac OS X Trojan steals processing power to produce Bitcoins

Security researchers warn that DevilRobber malware could slow down infected Mac computers

A newly identified Mac OS X Trojan bundles a component that leverages the processing power of video cards (GPUs) to generate Bitcoins, a popular type of virtual currency.

The new Trojan was dubbed DevilRobber by antivirus vendors and is being distributed together with several software applications via BitTorrent sites.

Interview: Bitcoin technical lead Gavin Andresen

"This malware is complex, and performs many operations," security researchers from Mac antivirus vendor Intego warned. "It is a combination of several types of malware: It is a Trojan horse, since it is hidden inside other applications; it is a backdoor, as it opens ports and can accept commands from command and control servers; it is a stealer, as it steals data and Bitcoin virtual money; and it is a spyware, as it sends personal data to remote servers," they explained.

The Bitcoin mining program that DevilRobber installs on infected computers is called DiabloMiner and is a legitimate Java-based application used in the virtual currency's production.

Bitcoin is a form of virtual cash that can be exchanged by users without the need for an intermediary bank or payment service. Bitcoins are actually cryptographic hashes that get generated piece by piece using specialized programs like DiabloMiner, according to a public algorithm.

One Bitcoin is currently valued at around US$3.20, and it is a good source of profit for both Bitcoin miners, who legitimately use their computer resources to generate them, and cybercriminals who steal them.

The DevilRobber trojan steals processing power, which can lead to slow computer performance, as well as actual Bitcoins, which are kept in virtual wallets on the victim's machine.

"OSX/Miner-D [DevilRobber] also spies on you by taking screen captures and stealing your usernames and passwords," warned Graham Cluley, a senior technology consultant at antivirus vendor Sophos.

"In addition, it runs a script that copies information to a file called dump.txt regarding truecrypt data, Vidalia (TOR plugin for Firefox), your Safari browsing history and .bash_history," he added.

So far, the Trojan has been detected in a BitTorrent download for GraphicConverter version 7.4, an image editing application for Mac OS X. However, this doesn't mean that there aren't similarly Trojanized torrents out there.

"Clearly, Mac users -- like their Windows cousins -- should practice safe computing and only download software from official websites and legitimate download services," Cluley said. He also stressed that Mac users should install an antivirus program, which is not hard to do and costs nothing.

There are several providers of free antivirus solutions for Mac and all of their solutions are more capable than Mac OS X's default anti-malware defense mechanism, which some Trojans already bypass or even disable.

Join the PC World newsletter!

Error: Please check your email address.

Tags sophossecurityIntegomalware

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Lucian Constantin

IDG News Service
Show Comments

Essentials

Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop

Learn more >

Lexar® JumpDrive® S57 USB 3.0 flash drive

Learn more >

Mobile

Lexar® JumpDrive® S45 USB 3.0 flash drive 

Learn more >

Exec

Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards 

Learn more >

Audio-Technica ATH-ANC70 Noise Cancelling Headphones

Learn more >

Lexar® JumpDrive® C20c USB Type-C flash drive 

Learn more >

HD Pan/Tilt Wi-Fi Camera with Night Vision NC450

Learn more >

Budget

Back To Business Guide

Click for more ›

Most Popular Reviews

Latest News Articles

Resources

GGG Evaluation Team

Michael Hargreaves

Windows 10 for Business / Dell XPS

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Kathy Cassidy

STYLISTIC Q702

First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni

STYLISTIC Q572

For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?