First Mac Ransomware Found in Transmission BitTorrent Client

transmission-29
This weekend, a notice appeared on Transmissionbt.com warning users that version 2.90 of the popular Mac BitTorrent client downloaded from their site may have been infected with malware. The warning reads:

Everyone running 2.90 on OS X should immediately upgrade to 2.91 or delete their copy of 2.90, as they may have downloaded a malware-infected file.

Using “Activity Monitor” preinstalled in OS X, check whether any process named “kernel_service” is running. If so, double check the process, choose the “Open Files and Ports” and check whether there is a file name like “/Users//Library/kernel_service”. If so, the process is KeRanger’s main process. We suggest terminating it with “Quit -> Force Quit”

Reuters reports that the infected download contained the first "Ransomware" found on the Mac platform. Ransomware is a type of malware that encrypts a user's hard drive and demands payment in order to unencrypt it. This type of attack has been increasingly popular on the PC, but this is the first time it has been seen on the Mac.

According to Reuters, Apple is aware of the issue and has already revoked "a digital certificate from a legitimate Apple developer that enabled the rogue software to install on Macs."

The malware in question is said to delay encrypting the user's hard drive for 3 days, so we may see the first reports of those affected as early as Monday. Transmissionbt.com offers instructions on how to see you are affected (above). If you don't use the Transmission software, there is nothing you need to do at this time.

Update: Technical details about the malware.

Update 2: Transmissionbt.com says version 2.92 of Transmission will actively remove the malware.

Top Rated Comments

stridemat Avatar
106 months ago
to be expected when people use BitTorrent, I have zero sympathy for people who pirate stuff!
Whilst most the time both go hand in hand, BitTorrent is just a method of file transfer and not directly related to piracy.
Score: 52 Votes (Like | Disagree)
8692574 Avatar
106 months ago
Cant really blame Apple for data loss if you
(a) Don't make regular backups
(b) Install bit torrent clients (from a website no less) Which have little or no legitimate use other than piracy
to be expected when people use BitTorrent, I have zero sympathy for people who pirate stuff!
Torrent are used for more than piracy my friend, we are not in the early 2000 anymore!!

All Linux distribution are downoadable with torrent and they are 100% legit!
Score: 32 Votes (Like | Disagree)
elcdbot Avatar
106 months ago
Lol, I don't think I've met an even SLIGHTLY savvy computer user (Mac or PC) in the last eight years or so that uses a client other than uTorrent.
Given that ALL torrent apps are free, why would anyone download this????????
Stability and no ads. Never had a problem with Transmission as my default client.
Score: 27 Votes (Like | Disagree)
mnsportsgeek Avatar
106 months ago
Apparently it only affects users who downloaded it off of the website and not those who used the in app update.
Score: 27 Votes (Like | Disagree)
TheHorrorNerd Avatar
106 months ago
... if you use time machine
Cant really blame Apple for data loss if you
(a) Don't make regular backups
(b) Install bit torrent clients (from a website no less) Which have little or no legitimate use other than piracy
Score: 26 Votes (Like | Disagree)
Weaselboy Avatar
106 months ago
Looks like Apple has updated XProtect for this KeRanger malware already. This is from my xprotect.plist file.



Attachment Image
Score: 24 Votes (Like | Disagree)

Popular Stories

Delta Feature

Delta Game Emulator Now Available From App Store on iPhone

Wednesday April 17, 2024 9:58 am PDT by
Game emulator apps have come and gone since Apple announced App Store support for them on April 5, but now popular game emulator Delta from developer Riley Testut is available for download. Testut is known as the developer behind GBA4iOS, an open-source emulator that was available for a brief time more than a decade ago. GBA4iOS led to Delta, an emulator that has been available outside of...
iPhone 15 Pro Action Button Translate

All iPhone 16 Models to Feature Action Button, But Usefulness Debated

Tuesday April 16, 2024 6:54 am PDT by
Last September, Apple's iPhone 15 Pro models debuted with a new customizable Action button, offering faster access to a handful of functions, as well as the ability to assign Shortcuts. Apple is poised to include the feature on all upcoming iPhone 16 models, so we asked iPhone 15 Pro users what their experience has been with the additional button so far. The Action button replaces the switch ...
Provenance Emulator

PlayStation, GameCube, Wii, and SEGA Emulator for iPhone and Apple TV Coming to App Store

Friday April 19, 2024 8:29 am PDT by
The lead developer of the multi-emulator app Provenance has told iMore that his team is working towards releasing the app on the App Store, but he did not provide a timeframe. Provenance is a frontend for many existing emulators, and it would allow iPhone and Apple TV users to emulate games released for a wide variety of classic game consoles, including the original PlayStation, GameCube, Wii,...
maxresdefault

Hands-On With the New App Store Delta Game Emulator

Wednesday April 17, 2024 12:19 pm PDT by
A decade ago, developer Riley Testut released the GBA4iOS emulator for iOS, and since it was against the rules at the time, Apple put a stop to downloads. Emulators have been a violation of the App Store rules for years, but that changed on April 5 when Apple suddenly reversed course and said that it was allowing retro game emulators on the App Store. Subscribe to the MacRumors YouTube channel ...
iOS NES Emulator Bimmy Feature

NES Emulator for iPhone and iPad Now Available on App Store [Removed]

Tuesday April 16, 2024 11:33 am PDT by
The first approved Nintendo Entertainment System (NES) emulator for the iPhone and iPad was made available on the App Store today following Apple's rule change. The emulator is called Bimmy, and it was developed by Tom Salvo. On the App Store, Bimmy is described as a tool for testing and playing public domain/"homebrew" games created for the NES, but the app allows you to load ROMs for any...