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 17 air iphone 16 pro

iPhone 17 Air USB-C Port May Have This Unusual Design Quirk

Wednesday April 30, 2025 3:59 am PDT by
Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years. iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack) At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...
iphone 16 display

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

Monday April 28, 2025 12:48 pm PDT by
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors. Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Tuesday April 29, 2025 1:30 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
iPhone 17 Air Pastel Feature

iPhone 17 Reaches Key Milestone Ahead of Mass Production

Monday April 28, 2025 8:44 am PDT by
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report. iPhone 17 Air mockup based on rumored design The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
apple watch ultra yellow

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

Friday April 25, 2025 2:44 pm PDT by
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too. 2025 Apple Watch Ultra 3 Apple didn't update the...
iPhone 17 Pro on Desk Feature

All iPhone 17 Models Again Rumored to Feature 12GB of RAM

Tuesday April 29, 2025 3:36 am PDT by
All upcoming iPhone 17 models will come equipped with 12GB of RAM to support Apple Intelligence, according to the Weibo-based leaker Digital Chat Station. The claim from the Chinese leaker, who has sources within Apple's supply chain, comes a few days after industry analyst Ming-Chi Kuo said that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will all be equipped with 12GB of RAM. ...
iOS App Store General Feature JoeBlue

Epic Games Wins Major Victory as Apple is Ordered to Comply With App Store Anti-Steering Injunction [Updated]

Wednesday April 30, 2025 4:01 pm PDT by
In a victory for Epic Games, Apple was today found to be in violation of a 2021 injunction that required it to allow developers to direct customers to third-party purchase options on the web using in-app links. Judge Yvonne Gonzalez Rogers, who has been handling the Apple vs. Epic Games dispute for the last five years, said that Apple is in "willful violation" of the injunction she issued to ...
iphone 16 pro ghost hand

iPhone 18 to Use High Performance Six-Channel Memory, Claims Leaker

Tuesday April 29, 2025 7:00 am PDT by
Apple's iPhone 18 lineup will introduce a major leap in memory performance, according to new information shared today by Weibo-based leaker Digital Chat Station. Apple is reportedly planning to equip the 2026 models with a high-capacity six-channel LPDDR5X memory configuration, significantly upping the memory bandwidth for future AI features and multitasking. Expanding the memory bandwidth...

Top Rated Comments

jonnysods Avatar
54 months ago
Get ready for lots of Justin Long Intel videos about this next week.
Score: 9 Votes (Like | Disagree)
Apple_Robert Avatar
54 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
54 months ago
Comes under the heading, be very careful about what you download.
Score: 6 Votes (Like | Disagree)
hot-gril Avatar
54 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
54 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
54 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)