Risk
10/30/2010
09:51 PM
George V. Hulme
George V. Hulme
Commentary
Connect Directly
RSS
E-Mail
50%
50%

Java Worm Targets Mac OS X

A just uncovered Trojan horse is employing an old social engineering ploy on social networks to lure Mac users.

A just uncovered Trojan horse is employing an old social engineering ploy on social networks to lure Mac users.According to the firm SecureMac, the worm is currently spreading through social networking sites:

SecureMac has discovered a new trojan horse in the wild that affects Mac OS X, including Snow Leopard (OS X 10.6), the latest version of OS X. The trojan horse, trojan.osx.boonana.a, is spreading through social networking sites, including Facebook, disguised as a video. The trojan is currently appearing as a link in messages on social networking sites with the subject "Is this you in this video?"

When a user clicks the infected link, the trojan initially runs as a Java applet, which downloads other files to the computer, including an installer, which launches automatically. When run, the installer modifies system files to bypass the need for passwords, allowing outside access to all files on the system. Additionally, the trojan sets itself to run invisibly in the background at startup, and periodically checks in with command and control servers to report information on the infected system. While running, the trojan horse hijacks user accounts to spread itself further via spam messages. Users have reported the trojan is spreading through e-mail as well as social media sites.

It was just a matter of time, due to the popularity of Macs in recent years, before we'd see more malware targeting these systems. How prolific and common these types of attacks become only time will tell. It is interesting to me that attackers have determined its worth their effort to create, as the Java component of this Trojan is, cross platform code that can infect both Windows and OS X users.

Intego, a competitor to SecureMac, issued an advisory that deemed this worm to be of low risk:

Malware: OSX/Koobface.A 
Risk: Low
 Description: Intego has discovered a Mac version of the Koobface worm, which spreads via social networks such as Facebook, MySpace and Twitter. Intego's Virus Monitoring Center has been examining this malware for some time, and given the low level of risk, has not publicly issued information about it. Since other reports have been made public about this malware, Intego has decided to publish this security memo.

Reports have circulated discussing a Trojan horse, but without understanding either the scope or the functioning of this malware. This threat is a Mac OS X version of the Koobface worm, which is served as part of a multi-platform attack via a malicious Java applet. The malware itself is made up of a number of elements, though in order to simplify, we will use the term "Trojan horse" to describe it. (Technically, it propagates as a worm, is installed via a Trojan Horse, and installs a rootkit, backdoor, command and control, and other elements.)

Whether a real threat to many, or not, it's always good sense to be careful where one clicks.

For my security and technology observations throughout the day, you can find me on Twitter.

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Dark Reading, September 16, 2014
Malicious software is morphing to be more targeted, stealthy, and destructive. Are you prepared to stop it?
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2006-1318
Published: 2014-09-19
Microsoft Office 2003 SP1 and SP2, Office XP SP3, Office 2000 SP3, Office 2004 for Mac, and Office X for Mac do not properly parse record lengths, which allows remote attackers to execute arbitrary code via a malformed control in an Office document, aka "Microsoft Office Control Vulnerability."

CVE-2012-2588
Published: 2014-09-19
Multiple cross-site scripting (XSS) vulnerabilities in MailEnable Enterprise 6.5 allow remote attackers to inject arbitrary web script or HTML via the (1) From, (2) To, or (3) Subject header or (4) body in an SMTP e-mail message.

CVE-2012-6659
Published: 2014-09-19
Cross-site scripting (XSS) vulnerability in the admin interface in Phorum before 5.2.19 allows remote attackers to inject arbitrary web script or HTML via a crafted URL.

CVE-2014-1391
Published: 2014-09-19
QT Media Foundation in Apple OS X before 10.9.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted movie file with RLE encoding.

CVE-2014-3614
Published: 2014-09-19
Unspecified vulnerability in PowerDNS Recursor (aka pdns_recursor) 3.6.x before 3.6.1 allows remote attackers to cause a denial of service (crash) via an unknown sequence of malformed packets.

Best of the Web
Dark Reading Radio