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

iPhone Top Left Hole Punch Face ID Feature Purple

10 Reasons to Wait for This Year's iPhone 18 Pro

Thursday January 8, 2026 2:56 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
samsung crease less foldable display ces 2026%402x

Foldable iPhone's Crease-Free Display Tech Spotted at CES 2026

Tuesday January 6, 2026 3:04 am PST by
CES 2026 has just provided a first glimpse of the folding display technology that Apple is expected to use in its upcoming foldable iPhone. At the event, Samsung Display briefly showcased its new crease-less foldable OLED panel beside a Galaxy Z Fold 7, and according to SamMobile, which saw the test booth before it was abruptly removed, the new panel "has no crease at all" in comparison. The ...
Touchscreen MacBook Feature

Apple Is Expected to Launch These Four MacBooks in 2026

Friday January 9, 2026 8:17 am PST by
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop. Below is a breakdown of what we're expecting over the next ...
iOS 27 Mock Quick

Five New iPhone Features Rumored for iOS 27

Wednesday January 7, 2026 2:51 pm PST by
Though it's been just a few months since iOS 26 launched, we're already hearing rumors about the next-generation version of iOS, iOS 27. iOS 27 will be introduced at Apple's June WWDC 2026 event before it launches in September 2026. We don't know all of the details about iOS 27 yet, but we do have some information about what to expect. "Snow Leopard" Update iOS 27 will apparently focus...
Apple Card iPhone 16 Pro Feature

Apple Card Will Move From Goldman Sachs to JPMorgan Chase

Wednesday January 7, 2026 12:57 pm PST by
JPMorgan Chase has reached a deal to take over operation of the Apple Card, reports The Wall Street Journal. Barring any "last minute hiccups," the deal should be announced shortly after over a year of negotiations. Reports began circulating over two years ago that current Apple Card issuer Goldman Sachs was looking to end its partnership with Apple as part of an effort to scale back on...
Logitech MX Master 3S

Logitech Blames 'Inexcusable Mistake' After Certificate Expiry Breaks macOS Apps

Wednesday January 7, 2026 5:27 am PST by
Logitech users on macOS found themselves locked out of their mouse customizations yesterday after the company let a security certificate expire, breaking both its Logi Options+ and G HUB configuration apps. Logitech devices like its MX Master series mice and MX Keys keyboards stopped working properly as a result of the oversight, with users unable to access their custom scrolling setup,...
ChatGPT Health Integration Connectors Feature

OpenAI Launches ChatGPT Health With Apple Health Integration

Wednesday January 7, 2026 11:27 am PST by
OpenAI today announced the launch of ChatGPT Health, a dedicated section of ChatGPT where users can ask health-related questions completely separated from their main ChatGPT experience. For more personalized responses, users can connect various health data services such as Apple Health, Function, MyFitnessPal, Weight Watchers, AllTrails, Instacart, and Peloton. Last month, MacRumors discovere...
safari icon blue banner

Apple Loses Safari Lead Designer to The Browser Company

Thursday January 8, 2026 10:50 am PST by
Apple has lost another senior figure from its Safari team as a lead designer departs for The Browser Company, extending a pattern of high-profile exits from Apple's browser team amid intensifying competition around AI-driven browsing. Marco Triverio was a lead designer for Safari and has now joined The Browser Company, the developer of the Arc and Dia browsers. The move was confirmed by The...

Top Rated Comments

jonnysods Avatar
63 months ago
Get ready for lots of Justin Long Intel videos about this next week.
Score: 9 Votes (Like | Disagree)
Apple_Robert Avatar
63 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
63 months ago
Comes under the heading, be very careful about what you download.
Score: 6 Votes (Like | Disagree)
hot-gril Avatar
63 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
63 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
63 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)