Security Researchers Discover XcodeSpy Malware That Targets Developers

Developers need to look out for "XcodeSpy," a malicious Xcode project that installs a custom variant of the "EggShell" backdoor on a macOS computer, according to new research shared today by SentinelOne (via Ars Technica).

iu 2 1
Xcode is software designed for developers who want to write apps for the iOS and macOS platforms, and the malicious project that's circulating mirrors TabBarInteraction, a legitimate open source project.

Developers who download the XcodeSpy project think they're getting TabBarInteraction, but the malware includes a hidden "run Script" executable that downloads and installs the EggShell open source back door that's able to spy on users through the microphone, camera, and keyboard as well as upload and download files.

Two variants of the custom EggShell attack were found to be uploaded in Japan, first in August and then in October, so this is an attack that's been out in the wild for some time.

We have thus far been unable to discover other samples of trojanized Xcode projects and cannot gauge the extent of this activity. However, the timeline from known samples and other indicators mentioned below suggest that other XcodeSpy projects may exist. By sharing details of this campaign, we hope to raise awareness of this attack vector and highlight the fact that developers are high-value targets for attackers.

SentinelOne says that all Apple Developers that use Xcode should exercise caution when using shared Xcode projects.

Tag: Xcode

Popular Stories

Tim Cook WWDC 2018

Report: Tim Cook to Step Down as Apple CEO 'as Soon as Next Year'

Saturday November 15, 2025 2:40 pm PST by
Apple is preparing for Tim Cook to step down as CEO of the company "as soon as next year," according to the Financial Times. The company's board of directors and senior executives "recently intensified preparations for Cook to hand over the reins," the report said. While the report said that Apple is unlikely to name a new CEO before its next earnings report in late January, it went on to ...
iOS 26

Everything New in iOS 26.2 Beta 3

Monday November 17, 2025 3:20 pm PST by
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3. AirDrop Apple added new AirDrop functionality, providing a way for two people to share files temporarily without having to add one another as contacts. iOS 26.2...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
best early black friday deals

Best Black Friday Apple Deals Live Now - Save on AirPods, iPads, and Apple Watches

Saturday November 15, 2025 1:45 pm PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
Apple Wallet ID Illinois

iPhone Driver's License Feature Launching in Illinois

Tuesday November 18, 2025 8:47 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Starting this Wednesday, November 19, the feature will be available to residents of Illinois. The announcement confirmed that the...
iPhone Pocket Short

iPhone Pocket Now Available to Order, But Already Selling Out

Friday November 14, 2025 6:20 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...
apple silicon mac lineup 2024 feature purple m5

Apple's 2026 Mac Plans

Friday November 14, 2025 3:23 pm PST by
Most of Apple's Macs are slated to get M5 chips across 2026, and there's a possibility we'll even see the first M6 chips toward the end of the year. Updates are planned for everything from the MacBook Air to the Mac Studio. MacBook Air (Early 2026) The MacBook Air will be one of the first Macs to get a 2026 refresh, with an update planned for the first few months of the year. The MacBook...
applecare apple care banner

Apple Brings New AppleCare+ Options to India

Tuesday November 18, 2025 8:42 am PST by
Apple today announced an expansion of AppleCare+ coverage in India, with new options for monthly and annual plans, and the addition of Theft and Loss for iPhone for the first time. Options for monthly and annual AppleCare+ plans in India provide more choice and flexibility, allowing users to keep coverage for as long as they require. Apple's vice president of Worldwide iPhone Product...
CarPlay Liquid Glass Dark

Here's When Tesla is Expected to Add Support for Apple CarPlay

Sunday November 16, 2025 6:49 am PST by
In his Power On newsletter today, Bloomberg's Mark Gurman reiterated that Tesla plans to add Apple CarPlay support to its vehicles "in the coming months." This is easily the biggest news for the regular version of CarPlay in years, should Tesla actually follow through with offering the system in its vehicles. As noted by Gurman, this would be a stunning reversal for Tesla and its CEO Elon ...
tvOS 26 Profiles

tvOS 26.2 Adds a Useful New Feature to Your Apple TV

Friday November 14, 2025 10:02 am PST by
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account. In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...

Top Rated Comments

jonnysods Avatar
61 months ago
Get ready for lots of Justin Long Intel videos about this next week.
Score: 9 Votes (Like | Disagree)
Apple_Robert Avatar
61 months ago

Laughing on my Linux developer laptop.
What is so funny? It's not like Linux hasn't had Malware problems.
Score: 7 Votes (Like | Disagree)
I7guy Avatar
61 months ago
Comes under the heading, be very careful about what you download.
Score: 6 Votes (Like | Disagree)
hot-gril Avatar
61 months ago

Why is it being called a Trojan when it has to be actively installed?
Cause that's what trojans are.
Score: 5 Votes (Like | Disagree)
hot-gril Avatar
61 months ago

Comes under the heading, be very careful about what you download.
Xcode does warn you when opening an xcodeproj downloaded from the Internet, but given how frequently you legitimately have to open and build random projects, I wish there were better sandboxing. The "run script" phase runs arbitrary code, ofc necessary when building many things but also an attack vector.

Edit: And even if you're not manually opening/building projects, you're probably using Cocoapods, which is. Of course other dev platforms have similar risks.
Score: 4 Votes (Like | Disagree)
Unsupported Avatar
61 months ago

Why is it being called a Trojan when it has to be actively installed?
https://usa.kaspersky.com/resource-center/threats/trojans

A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers trying to gain access to users' systems. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems. Once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. These actions can include:

•Deleting data
•Blocking data
•Modifying data
•Copying data
•Disrupting the performance of computers or computer networks


Modifying data?

So it could infect the project that the developer is working on?

Nasty!
Score: 3 Votes (Like | Disagree)