![]() You can check the version of xprotect content by using the following command. The content in xprotect.bundle is updated periodically by Apple. Most of the content specific to xprotect is present in xprotect.bundle which is located at path mentioned above. ![]() The alert message looks like this (may differ based on the XProtectMalwareType received from xprotect):Īpple haven't open sourced any component of xprotect. Based on the information received from xprotect, coreservicesuiagent creates an alert for user and move the application to Bin. Xprotect tags the file with value XprotectMalwareType even if the file is clean and signed.The xprotect service scan for the malicious content in main executable and return the classification of the executable from this list in a parameter named XprotectMalwareType and send the information back to CoreServicesUIAgent.CoreServicesUIAgent than call a xpc service XprotectService.xpc which is part of XProtectFramework located at /System/Library/PrivateFrameworks/amework.When a new process is started with launchd(by double-clicking the app) or from terminal, the LaunchServices send and xpc message to CoreServicesUIAgent which handles the UI aspects of application loading.We will discuss the bundle's structure later, let's first talk about how XProtect works. The main XProtect related data is present in a loadable bundle located at /Library/Apple/System/Library/CoreServices/XProtect.bundle. XProtect checks for known malicious content whenever:Īn app has been changed (in the file system)īut in recent MacOS, it checks the executable code of every app and command tool whenever it’s run, regardless of whether it's quarantine flag is set. Xprotect is a signature based malware detection solution available in MacOS, that scan for malicious content when a bundle or individual binary is executed.
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