Atomic Stealer | Breaking Cybersecurity News | The Hacker News

Cybersecurity researchers are alerting to a new malware campaign that employs the ClickFix social engineering tactic to trick users into downloading an information stealer malware known as Atomic macOS Stealer ( AMOS ) on Apple macOS systems. The campaign, according to CloudSEK, has been found to leverage typosquat domains mimicking U.S.-based telecom provider Spectrum. "macOS users are served a malicious shell script designed to steal system passwords and download an AMOS variant for further exploitation," security researcher Koushik Pal said in a report published this week. "The script uses native macOS commands to harvest credentials, bypass security mechanisms, and execute malicious binaries." It's believed that the activity is the work of Russian-speaking cybercriminals owing to the presence of Russian language comments in the malware's source code. The starting point of the attack is a web page that impersonates Spectrum ("panel-spectrum[....

Malicious ads and bogus websites are acting as a conduit to deliver two different stealer malware, including Atomic Stealer, targeting Apple macOS users. The ongoing infostealer attacks targeting macOS users may have adopted different methods to compromise victims' Macs, but operate with the end goal of stealing sensitive data, Jamf Threat Labs  said  in a report published Friday. One such attack chain targets users searching for Arc Browser on search engines like Google to serve bogus ads that redirect users to look-alike sites ("airci[.]net") that serve the malware. "Interestingly, the malicious website cannot be accessed directly, as it returns an error," security researchers Jaron Bradley, Ferdous Saljooki, and Maggie Zirnhelt said. "It can only be accessed through a generated sponsored link, presumably to evade detection." The disk image file downloaded from the counterfeit website ("ArcSetup.dmg") delivers  Atomic Stealer , which i...

Cybersecurity researchers have identified an updated version of a macOS information stealer called  Atomic  (or AMOS), indicating that the threat actors behind the malware are actively enhancing its capabilities. "It looks like Atomic Stealer was updated around mid to late December 2023, where its developers introduced payload encryption in an effort to bypass detection rules," Malwarebytes' Jérôme Segura  said  in a Wednesday report. Atomic Stealer  first emerged  in April 2023 for a monthly subscription of $1,000. It's capable of harvesting sensitive information from a compromised host, including Keychain passwords, session cookies, files, crypto wallets, system metadata, and the machine's password via a fake prompt. Over the past several months, the malware has been observed propagated via  malvertising  and  compromised sites  under the guise of legitimate software and web browser updates. Malwarebytes' latest analysis shows th...

I had the honor of hosting the first episode of the Xposure Podcast live from Xposure Summit 2025. And I couldn't have asked for a better kickoff panel: three cybersecurity leaders who don't just talk security, they live it. Let me introduce them. Alex Delay , CISO at IDB Bank, knows what it means to defend a highly regulated environment. Ben Mead , Director of Cybersecurity at Avidity Biosciences, brings a forward-thinking security perspective that reflects the innovation behind Avidity's targeted RNA therapeutics. Last but not least, Michael Francess , Director of Cybersecurity Advanced Threat at Wyndham Hotels and Resorts, leads the charge in protecting the franchise. Each brought a unique vantage point to a common challenge: applying Continuous Threat Exposure Management (CTEM) to complex production environments. Gartner made waves in 2023 with a bold prediction: organizations that prioritize CTEM will be three times less likely to be breached by 2026. But here's the kicker -...

The macOS information stealer known as Atomic is now being delivered to target via a bogus web browser update chain tracked as ClearFake. "This may very well be the first time we see one of the main social engineering campaigns, previously reserved for Windows, branch out not only in terms of geolocation but also operating system," Malwarebytes' Jérôme Segura  said  in a Tuesday analysis. Atomic Stealer (aka AMOS),  first documented  in April 2023, is a commercial stealer malware family that's sold on a subscription basis for $1,000 per month. It comes with capabilities to siphon data from web browsers and cryptocurrency wallets. Then in September 2023, Malwarebytes  detailed  an Atomic Stealer campaign that took advantage of malicious Google ads, tricking macOS users searching for a financial charting platform known as TradingView into downloading the malware. ClearFake, on the other hand, is a nascent malware distribution operation that employs comp...