Fragments of Cross-Platform Backdoor Hint at Larger Mac OS Attack
During routine detection maintenance, our Mac researchers stumbled upon a small set of files with backdoor capabilities that seem to form part of a more complex malware toolkit. The following analysis is incomplete, as we are trying to identify the puzzle pieces that are still missing.
We discovered that Gimmick MacOS malware communicates only through their C2 server hosted on Google Drive. The malware was discovered in the first week of May and it has been actively targeting macOS devices
Snake: Coming soon in Mac OS X flavour – Fox-IT International blog
Summary Snake, also known as Turla, Uroburos and Agent.BTZ, is a relatively complex malware framework used for targeted attacks. Over the past year Fox-IT has been involved in multiple incident response cases where the Snake framework was used to steal sensitive information. Targets include government institutions, military and large corporates. Researchers who have previously analyzed…
We detected Mac malware MacStealer spreading via websites, social media, and messaging platforms Twitter, Discord, and Telegram. Cybercriminals lure victims to download it by plagiarizing legitimate play-to-earn (P2E) apps’ images and offering jobs as beta testers.
7 Ways Threat Actors Deliver macOS Malware in the Enterprise
Stay ahead of the game with our review on macOS malware threats. Learn about the top techniques used by threat actors to deliver malware and how to build more resilient defenses.
L’art de l’évasion How Shlayer hides its configuration inside Apple proprietary DMG files
While conducting routine threat hunting for macOS malware on Ad networks, I stumbled upon an unusual Shlayer sample. Upon further analysis, it became clear that this variant was different from the known Shlayer variants such as OSX/Shlayer.D, OSX/Shlayer.E, or ZShlayer. We have dubbed it OSX/Shlayer.F.
North Korean hackers use signed macOS malware to target IT job seekers
North Korean hackers from the Lazarus group have been using a signed malicious executable for macOS to impersonate Coinbase and lure in employees in the financial technology sector.
We discovered that Gimmick MacOS malware communicates only through their C2 server hosted on Google Drive. The malware was discovered in the first week of May and it has been actively targeting macOS devices
While Windows holds the largest market share on malware, macOS has its fair share of threats that mostly exist in an adware/grayware area. In this post I want to walk through how a Pirrit PKG file installer works. There are lots of more complex threats, but this is a good place to start if you’re just jumping into analysis. If you want to follow along at home, I’m working with this file in MalwareBazaar: https://bazaar.abuse.ch/sample/d39426dbceb54bba51587242f8101184df43cc23af7dc7b364ca2327e28e7825/.
Storm Cloud on the Horizon: GIMMICK Malware Strikes at macOS
In late 2021, Volexity discovered an intrusion in an environment monitored as part of its Network Security Monitoring service. Volexity detected a system running frp, otherwise known as fast reverse proxy, and subsequently detected internal port scanning shortly afterward. This traffic was determined to be unauthorized and the system, a MacBook Pro running macOS 11.6 (Big Sur), was isolated for further forensic analysis. Volexity was able to run Surge Collect to acquire system memory (RAM) and select files of interest from the machine for analysis. This led to the discovery of a macOS variant of a malware implant Volexity calls GIMMICK. Volexity has encountered Windows versions of the malware family on several previous occasions. GIMMICK is used in targeted attacks by Storm Cloud, a Chinese espionage threat actor known to attack organizations across Asia. It is a feature-rich, multi-platform malware family that uses public cloud hosting services (such as Google […]
Watering hole deploys new macOS malware, DazzleSpy, in Asia
The website of a Hong Kong pro-democracy radio station was compromised to serve a Safari exploit that installed cyberespionage malware on visitors’ Macs.
SysJoker : un malware pour macOS, Windows et Linux qui opère discrètement depuis des mois
Un inquiétant cheval de Troie très discret et multiplateformes vient d'être repéré. Baptisé SysJoker et mis en lumière par la firme de sécurité Intezer, il peut cibler autant Windows, Linux que macOS. Pire encore, celui-ci passait sous les radars des antivirus depuis un bout de temps. Les versions Linux et macOS n'étaient jusqu'à présent pas du tout détectées par des sites
SysJoker analyzing the first (macOS) malware of 2022!
Earlier today (January 11th), Researchers at Intezer published an report titled, “New SysJoker Backdoor Targets Windows, Linux, and macOS.” In this report, they detailed a new cross-platform backdoor they named SysJoker. Though initially discovered on Linux, the Intezer researchers shortly thereafter also found both Windows and Mac versions: "SysJoker was first discovered during an active attack on a Linux-based web server of a leading educational institution. After further investigation, we found that SysJoker also has Mach-O and Windows PE versions." -Intezer
We detected Mac malware MacStealer spreading via websites, social media, and messaging platforms Twitter, Discord, and Telegram. Cybercriminals lure victims to download it by plagiarizing legitimate play-to-earn (P2E) apps’ images and offering jobs as beta testers.
7 Ways Threat Actors Deliver macOS Malware in the Enterprise
Stay ahead of the game with our review on macOS malware threats. Learn about the top techniques used by threat actors to deliver malware and how to build more resilient defenses.
