Atomic macOS Stealer Malware Can Steal Keychain Info, Files, Browser Wallets and More

While Apple's Macs are less targeted by malware than Windows PCs, concerning Mac malware does pop up regularly. This week, there's new Mac malware out in the wild that Mac users should be aware of.

macos atomic malware demo
Called Atomic macOS Stealer (AMOS), the malware was found on Telegram by Cyble Research. A Telegram user was selling access to the malware, which is designed to steal sensitive information like usernames and passwords.

Whoever designed the Atomic macOS Stealer is working behind the scenes to improve it and add new functionality to make it more effective. In its current incarnation, AMOS is able to access keychain passwords, system information, files from the desktop and documents folder, and the password of the Mac.

It is able to infiltrate browser apps like Chrome and Firefox, extracting autofill information, passwords, cookies, wallets, and credit card information. Cryptowallets like Electrum, Binance, and Atomic are specific targets.

macos atomic malware
AMOS can be purchased with a web panel that makes it easy to manage malware targets, along with tools for brute-forcing private keys. The malware and accompanying services to make it easier to use against victims can be purchased on Telegram for $1,000 per month.

A .dmg file is used to get the malware on a victim's machine, and once installed, it immediately begins accessing sensitive information and sending it to a remote server. A fake system prompt is presented to get access to the system password, and it asks for access to files in the documents and desktop folders.

Because this requires a user to click on a .dmg file to install, Mac users can avoid the malware by not installing any kind of untrusted software from an unverified source. Cyble Research recommends installing software from the Mac App Store, using strong passwords and multi-factor authentication, and using biometric authentication where possible.

Users should also avoid opening links in emails, using caution whenever an app asks for permissions, and keeping devices, operating systems, and apps up to date.

Popular Stories

iPhone 17 Plus Feature

iPhone 17 Lineup Specs Detail Display Upgrade and New High-End Model

Monday July 22, 2024 4:33 am PDT by
Key details about the overall specifications of the iPhone 17 lineup have been shared by the leaker known as "Ice Universe," clarifying several important aspects of next year's devices. Reports in recent months have converged in agreement that Apple will discontinue the "Plus" iPhone model in 2025 while introducing an all-new iPhone 17 "Slim" model as an even more high-end option sitting...
iPhone SE 4 Vertical Camera Feature

iPhone SE 4 Rumored to Use Same Rear Chassis as iPhone 16

Friday July 19, 2024 7:16 am PDT by
Apple will adopt the same rear chassis manufacturing process for the iPhone SE 4 that it is using for the upcoming standard iPhone 16, claims a new rumor coming out of China. According to the Weibo-based leaker "Fixed Focus Digital," the backplate manufacturing process for the iPhone SE 4 is "exactly the same" as the standard model in Apple's upcoming iPhone 16 lineup, which is expected to...
Apple TV Plus Feature 2 Magenta and Blue

Apple TV+ Curbs Costs After Expensive Projects Fail to Capture Viewers

Monday July 22, 2024 5:11 am PDT by
Apple is scaling back its Hollywood spending after investing over $20 billion in original programming with limited success, Bloomberg reports. This shift comes after the streaming service, which launched in 2019, struggled to capture a significant share of the market, accounting for only 0.2% of TV viewership in the U.S., compared to Netflix's 8%. Despite heavy investment, critical acclaim,...
iPhone 16 Pro Sizes Feature

iPhone 16 Series Is Just Two Months Away: Everything We Know

Monday July 15, 2024 4:44 am PDT by
Apple typically releases its new iPhone series around mid-September, which means we are about two months out from the launch of the iPhone 16. Like the iPhone 15 series, this year's lineup is expected to stick with four models – iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max – although there are plenty of design differences and new features to take into account. To bring ...
iPhone 17 Plus Feature Purple

These 5 Features Will Make the iPhone 17 the Biggest Update in Years

Monday July 22, 2024 4:02 pm PDT by
The upcoming iPhone 16 models that we're expecting to see in September are going to be quite similar to the iPhone 15 models, but rumors suggest that Apple is making big changes in 2025. We've been hearing hints of an all-new device in the iPhone lineup, and it may be the most expensive iPhone Apple has offered to date. New 'Slim' Design Rumors have taken to referring to the new iPhone 17...
iPhone SE 4 Thumb 1

iPhone SE 4 Rumored to Launch Early Next Year With OLED Display, 48MP Camera, and More

Monday July 22, 2024 7:22 am PDT by
The fourth-generation iPhone SE will offer a series of major upgrades over the current model, the leaker known as "Ice Universe" claims. The information was listed in a post on Weibo, which also detailed the specifications of the iPhone 17 lineup. As previously rumored, the fourth-generation iPhone SE is expected to feature Face ID and USB-C, marking a major upgrade from current and previous ...

Microsoft Blames European Commission for Major Worldwide Outage

Monday July 22, 2024 11:55 am PDT by
Last Friday, a major CrowdStrike outage impacted PCs running Microsoft Windows, causing worldwide issues affecting airlines, retailers, banks, hospitals, rail networks, and more. Computers were stuck in continuous recovery loops, rendering them unusable. The failure was caused by an update to the CrowdStrike Falcon antivirus software that auto-installed on Windows 10 PCs, but Mac and Linux...

Top Rated Comments

matt_and_187_like_this Avatar
16 months ago
Even malware is on a subscription model these days
Score: 112 Votes (Like | Disagree)
AtomicDusk Avatar
16 months ago
hey y’all, I just want to hijack this thread and say that I can’t wait for sideloading on iOS because you can put whatever you want on your Mac.
Score: 40 Votes (Like | Disagree)
sw1tcher Avatar
16 months ago

Sounds like a great reason to only install from the App Store.

It's Apple behind this to prove why it's better to keep the App Store only for iOS and then do the same for the Mac!
Except Apple allows crapware onto their Mac App store too

not to mention all the junk on their iOS App store ('')
Score: 31 Votes (Like | Disagree)
LV426 Avatar
16 months ago
Next time macOS goes a bit loopy (literally) after an update and keeps asking you to re-enter your Apple ID password, you'd be justified in worrying that something like this is having a go at you.
Score: 20 Votes (Like | Disagree)
Rychiar Avatar
16 months ago

I only rely on Apple’s own Apple App Store on Mac. ?
I can’t think of anything i’ve ever gotten from the App Store. Even adobe isn’t on the App Store. Nor are things like VLC, superduper, emulators, bit torrent clients. Pretty much anything that makes a Mac Better than an iPad
Score: 18 Votes (Like | Disagree)
natnorth Avatar
16 months ago
Looking at that browser list... you can see why Chrome and pretty much all "competing" browsers based on chrome isn't great for web competition. Firefox is the only one of two on there that doesn't hand over passwords
Score: 17 Votes (Like | Disagree)