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1. . XProtect Mobile - High; XProtect Web - Medium; XProtect Smart Client - Low Bringing all your surveillance tools together XProtect video management software (VMS) brings all the puzzle pieces for video surveillance together in a perfect combination to create a solution that keeps people and property safe.
2. Other hotfixes and FAQs related to the XProtect 2020 R3 release Smart Client. KB 28001: XProtect Smart Client 2020 R3 cumulative patch; Others. KB 14767: Milestone Migration Assistant Tool — FAQ. (Note: The Migration Assistant is a tool that will assist you with the migration of XProtect Professional VMS systems to XProtect Advanced VMS.).

A new AdLoad malware variant is slipping through Apple's YARA signature-based XProtect built-in antivirus to infect Macs as part of multiple campaigns tracked by cybersecurity firm SentinelOne.

AdLoad is a widespread trojan targeting the macOS platform since at least since late 2017 and used to deploy various malicious payloads, including adware and Potentially Unwanted Applications (PUAs),

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This malware can also harvest system information that later gets sent to remote servers controlled by its operators.

Increasingly active since July

These massive scale and ongoing attacks have started as early as November 2020, according to SentinelOne threat researcher Phil Stokes, with an increase in activity beginning with July and the beginning of August.

Once it infects a Mac, AdLoad will install a Man-in-The-Middle (MiTM) web proxy to hijack search engine results and inject advertisements into web pages for monetary gain.

It will also gain persistence on infected Macs by installing LaunchAgents and LaunchDaemons and, in some cases, user cronjobs that run every two and a half hours.

While monitoring this campaign, the researcher observed more than 220 samples, 150 of them unique and undetected by Apple's built-in antivirus even though XProtect now comes with roughly a dozen AdLoad signatures.

Many of the samples detected by SentinelOne are also signed with valid Apple-issued Developer ID certificates, while others are also notarized to run under default Gatekeeper settings.

'At the time of writing, XProtect was last updated around June 15th. None of the samples we found are known to XProtect since they do not match any of the scanner’s current set of Adload rules,' Stokes concluded.

'The fact that hundreds of unique samples of a well-known adware variant have been circulating for at least 10 months and yet still remain undetected by Apple’s built-in malware scanner demonstrates the necessity of adding further endpoint security controls to Mac devices.'

Hard to ignore threat

To put things into perspective, Shlayer, another common macOS malware strain that has also been able to bypass XProtect before and infect Macs with other malicious payloads, has hit over 10% of all Apple computers monitored by Kaspersky.

Its creators also got their malware through Apple's automated notarizing process and included the ability to disable the Gatekeeper protection mechanism to run unsigned second-stage payloads.

Shlayer also recently exploited a macOS zero-day to bypass Apple's File Quarantine, Gatekeeper, and Notarization security checks and download second-stage malicious payloads on compromised Macs.

While both AdLoad and Shlayer now only deploy adware and bundleware as secondary payloads, their creators can quickly switch to more dangerous malware, including ransomware or wipers, at any time.

'Today, we have a level of malware on the Mac that we don’t find acceptable and that is much worse than iOS,' said Craig Federighi, Apple’s head of software, under oath while testifying in the Epic Games vs. Apple trial in May.

What Does XProtect Mean?

XProtect, officially called File Quarantine, is Apple's anti-malware system built into its Mac OS X operating system. Like most anti-malware programs, XProtect defends Macs from infection from various types of malicious software or malware. Like most malware defense or antivirus software, it needs its definitions to be updated regularly in order for it to recognize newer threats.

Techopedia Explains XProtect

Apple's XProtect system, which is included in OS X, is a non-intrusive and rudimentary anti-malware program that runs in the background quietly without the need for user interaction; it is light on system resources. XProtect, however, has a major difference from traditional anti-malware programs in that it is not constantly checking and monitoring the system, which usually takes up resources. It is mostly just used to scan downloads, so it is only executed when a download occurs, which also means that it is mostly supported by applications that have a download function; these applications are called 'File Quarantine-aware applications.' When such an application initiates a download, XProtect is invoked to check the downloaded files and then compares their contents with known virus definitions and then creates an alert to the user if any is found.
Examples of File Quarantine-aware applications:

• Safari
• Messages
• iChat
• Mail

How To Bypass Sentinelone

Synonyms

File Quarantine

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Cybersecurity