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Antivirus Real-time Scanner
The first software we ask to get installed on a system is an antivirus. Even Mac users ask for it. Whether you connect to the Internet or not, surf only safe websites, does not click on any link, does not open strangers email, do not install additional software, still, your system needs a good antivirus.
An antivirus does real-time scanning of system memory, OS and files and detects, prevents, and removes malicious code. It applies signature-based detection methods, heuristic detection methods, and rootkit detection tools. Furthermore prevents a significant level of intrusions and malware to prevent computers from being infected.
Symantec, McAfee, Avira, Avast, AVG, Quick Heal, Comodo, Avast Software, ESET, Bitdefender, Fortinet, F-Secure, G DATA Software, Qihoo 360, Kaspersky, Panda Security, Trend Micro, Microsoft, Rising, Cheetah Mobile, AhnLab
A virus persists on a system after a reboot and starts with the system. They acquire strain's ability with persistence by modifying boot sectors, hijacking the Windows COM system or DLL's and shortcut files, using Windows Registry to add registry keys to call malicious code on boot-up.
Researchers have found new malware persistence method on Windows 10 leveraging Microsoft UWP apps like the Cortana and People apps.
Virus Steal User Data – Mac and iPhone devices are also not safe
(September 10, 2018) Apple removes several Trend Micro Apps from Mac App Store stealing user data. Researchers confirmed that Mac App Store malware called ‘Adware Doctor’ was collecting user's browsing history and sending that info in zipped files to remote servers in China without user permission. They also reported other programs on the platform to indulge in similar nefarious activities. The apps behaving deceptively include Dr. Antivirus, Dr. Cleaner, Dr. Unarchiver Dr. Antivirus and Open Any Files: RAR Support. Most of them distributed by Trend Micro, a well-known security software firm.
App Store to Remove iPhone Antivirus Apps
iOS designed with security in mind, hence antivirus app not needed. Also, its sandbox environment does not allow apps to interact with other data or scan other apps. Thus, they won't steal data or infect other apps. Furthermore, a user cannot install an app outside of the App Store. An app undergoes a thorough review process, in which code examined before allowing into the App Store, hence discourages and make it difficult for the developer to sneak malicious code onto the platform.
On Android, a user can install apps outside of the Google Play Store via APK files.