New Java-Based Malware Targets Mac OS X, But Threat Level Disputed

135706 koobface alert
Security alert dialog box generated by malware's installation attempts

Yesterday, Mac antivirus firm SecureMac issued an alert regarding a new piece of malware capable of infecting systems running Mac OS X by using a trojan horse method of entry to deploy a Java-based payload enabling a wide variety of nefarious functions.

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.

Rival antivirus firm Intego responded with a notice of its own, downplaying the imminent threat from the malware due to the fact that it does not appear to be functioning as intended.

While Intego has evidence of several infections in the wild, we are not currently able to go beyond this step, as either the malicious malware has bugs preventing it from running correctly, or the servers it contacts are not active or are not serving the correct files.

Potentially, if it installs correctly, it functions the same as the Koobface worm running on Windows. It runs a local web server and an IRC server, acts as part of a botnet, acts as a DNS changer, and can activate a number of other functions, either through files initially installed or other files downloaded subsequently. It spreads by posting messages on Facebook, MySpace and Twitter, usually trying to get people to click a link to view some sort of video.

While this is an especially malicious piece of malware, the current Mac OS X implementation is flawed, and the threat is therefore low.

Both companies have conveniently noted that they offer products capable of identifying and eliminating the malware, although users without protection software should be alerted by the malware installation generating a Mac OS X dialog box regarding the attempted action.

Popular Stories

iOS 18

iOS 18.4 Coming Next Week With These New Features for Your iPhone

Friday February 14, 2025 6:18 am PST by
The first iOS 18.4 beta for iPhones should be just around the corner, and the update is expected to include many new features and changes. Bloomberg's Mark Gurman expects the iOS 18.4 beta to be released by next week. Below, we outline what to expect from iOS 18.4 so far. Apple Intelligence for Siri Siri is expected to get several enhancements powered by Apple Intelligence on iOS...
iPhone 17 Roundup Feature 2

iPhone Design to Change 'Significantly' This Year

Monday February 17, 2025 7:09 am PST by
Apple is set to "significantly change" the iPhone's design language later this year, according to a Weibo leaker. In a new post, the user known "Digital Chat Station" said that the iPhone's design is "starting to change significantly" this year. The "iPhone 17 Air" reportedly features a "horizontal, bar-shaped" design on the rear, likely referring to an elongated camera bump. On the other...
Apple Maps 2024

Apple Maps Might Start Showing Ads

Sunday February 16, 2025 7:22 am PST by
Apple is "exploring" the idea of showing search ads in the Apple Maps app, according to Bloomberg's Mark Gurman. Back in 2022, Gurman said software engineering was "already underway" to display ads in the Apple Maps app, but Apple did not move forward with the idea at the time. Today, he said Apple is "giving this notion more thought" again. This time around, he said Apple has yet to...
Tim Cook Apple Park

10+ Announcements Apple Could Have Rolled Into a February Event

Saturday February 15, 2025 8:00 am PST by
Apple appears to have enough upcoming product announcements to justify a full event this month, yet all signs indicate these reveals will be handled through a series of press releases instead. There are a multitude of rumors from reliable sources about specific announcements in the coming weeks, so here's everything that Apple could have feasibly included in a hypothetical February event: ...
apple launch feb 2025

Tim Cook Teases an 'Apple Launch' Next Wednesday

Thursday February 13, 2025 8:07 am PST by
In a social media post today, Apple CEO Tim Cook teased an upcoming "launch" of some kind scheduled for Wednesday, February 19. "Get ready to meet the newest member of the family," he said, with an #AppleLaunch hashtag. The post includes a short video with an animated Apple logo inside a circle. Cook did not provide an exact time for the launch, or share any other specific details, so...
apple launch feb 2025 alt

What to Expect From the 'Apple Launch' Next Week

Thursday February 13, 2025 11:48 am PST by
Apple has yet to announce any new devices this year, but that could change starting next week. Apple CEO Tim Cook today said to "get ready" for a "launch" on Wednesday, February 19. "Get ready to meet the newest member of the family," said Cook, in a social media post. The post includes an #AppleLaunch hashtag, along with a short video featuring an animated Apple logo inside of a circle....
maxresdefault

The MacRumors Show: Apple Teases Its Next Major Product Launch

Friday February 14, 2025 9:38 am PST by
On this week's episode of The MacRumors Show, we discuss the imminent Apple product "launch" that is widely expected to be the fourth-generation iPhone SE. Subscribe to The MacRumors Show YouTube channel for more videos In a social media post on Thursday, Apple CEO Tim Cook teased an upcoming "launch" of some kind scheduled for Wednesday, February 19. "Get ready to meet the newest member of...
Apple 2025 Thumb 1

Two of Apple's Oldest Products Are Finally Getting Updated This Year

Friday February 14, 2025 6:03 am PST by
Apple released the HomePod mini in November 2020, followed by the AirTag in May 2021, and both still remain first-generation products. Fortunately, rumors suggest that both the HomePod mini and the AirTag will finally be updated at some point this year. Below, we recap rumors about the HomePod mini 2 and AirTag 2. HomePod mini 2 In January 2025, Bloomberg's Mark Gurman said Apple is ...
iPhone 17 Pro Render Front Page Tech

iPhone 17 Pro With All-New Camera Bar Design Allegedly Revealed

Thursday February 13, 2025 5:49 pm PST by
Apple's next-generation iPhone 17 Pro will feature three rear cameras arranged in a familiar triangular layout, but the cameras will be housed in an all-new rectangular camera bar with rounded corners, according to YouTube channel Front Page Tech. iPhone 17 Pro camera design render created by Asher for Front Page Tech In a video uploaded today, Front Page Tech host Jon Prosser said the camera ...