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Windows 10 protection against ransomware attacks

Mohan Manohar July 6, 2017
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New ransomware exploits existing and some lesser known techniques to violate windows protection system and create the infection of windows which have not yet known to many researchers and well-known security experts. These ransomware exploit penetration testers and hacking methods which has been in use by ethical hackers for complete automation of technique standards and use it against these techniques with single-piece of code. These are sophisticated forms of attacks which implement Windows own set up of codes and provide such awesome and sophisticated attacks to Windows users which have not been known for years.

Mitigation of specific malware techniques:

This lead to creating the continuous mitigation of development of Windows so that it should always stay ahead of such attacks. Each mitigation within windows code should be created in the form of specific mitigation techniques that should provide some of the most strongest and mightiest defense again all such attacks from ransomware. The problem and difficulties in dealing with that for most of time we have seen the presence of large sum of series of chained events that tackle such and such series of attacks on windows computer and while detecting these series of chains we could find more and more possible forms of link chain of attackers.

In the case of ransomware which only deals with specific leaks of mitigation which might exist at some point of kernel codes and that seems to mostly undetected. That is why mitigation for specific malwares is the need of hour. Day by day malware developers is thinking about sending the smallest form of malwares that could only intrude into the kernel of the operation system and slowly creating complete form of disastrous run of events into it.

Windows 10 have device guard which aims to provide the strongest integrity check of each and every application and then only allows trusted signed up applications to run into it. Mostly ransomware are in the form of updates running through entrusted binaries ultimately caught hold through device guard and ultimately disabled it. It could not then inject malware infected dll into it and that should provide the most trusted form of defense of windows.

Most of these ransomware creates a credential dump into system software and most of the times, security software went unnoticed into it and then slowly it spreads to different system devices for windows. It integrates with LSASS processes to attack the system and completely taken over the administrative rights of windows. Credential guard of Windows 10 takes care of this as it creates the virtualization process and its security is completely based on this, and it checks for domain credentials and checks for importance of third party tool so that in no way, ransomware hackers could install software from third party links.

Most of the common form of mitigation of exploits tools such as randomization of kernel, non-executable kernel regions are there already with Windows 10 to stop common forms of mitigations. Apart from this device guard and credential guard have been doing this to stop dynamic mitigation of ransomwares. Both mitigations are control flow-guard for kernel and it continuously checks for kernel code-integrity even during some highly administered and capable ransom ware injections. It protects windows against zero day vulnerabilities which come in the form of changes of times zones.

Starting from Windows 8, we have seen the advent of UEFI Secure Boot processes which ultimately depend heavily upon the principles of hardware based kernel security as it would stop the dangerous disk encryption technologies from beginning out from the boot sectors.

It protects boot loader, and then it prevents it from further execution, as the ransomware could not provide forced boot to these systems due to the presence of hardware security. This prevents ransomware from stopping the operating system from running and thus it completely safeguards boot loader and its corresponding data.

In these circumstances if UEFI secure boot is not there then the machine can be recreated from the mechanics and the windows have to install from there again. It seriously performs data loss and for this it is important to implement to do this so that at no point of time there would be seriously data loss to your devices.

App locker for Windows 10 helps to find out unsigned binaries and block execution of such programs. If at any point of time some of these rasomware got pass the security of Device Guard then it the latter stages we could see that App Locker stops these programs from running into there and then it sees all of these hardware requirements before allowing execution of these programs.

Most of ransomware do take some longer time due to constraint of distance execution of codes and for this it is a wiser idea to restrict software execution time to bare minimum so that ultimately it does work in completely coherent manner without any signs of execution of malicious scripts.

Most of ransomware do take a huge chunk of time to load and execute in its first attempt and this it has been a good idea to limit these execution time to the bare minimum so that these could not be executed within that specified default timings. In a way it ends the lateral movement and default execution time of these software so that it could not load on the next reboot.

Most of ransomware always tries hard to infect the boot loader and its corresponding processes, with mitigation of conditional behavior and boot-sector modifications. When the behaviours of these ransomwares is understood the processes it works from sector to sector are well known for. Sometimes, it modifies the master boot record as well as it tries to replace corrupt system files instead of normal files so that recovery of the boot sector and boot loader could not be performed at any point in time.

This code makes the boot times ten times more and create slow windows start up in order to provide a greater amount of time to ransom to install during these slow start up processes. For this it is essential to observe these initial movements of programs and for greater security hardware level security as well as using computer in a standard user account instead of an administrative account should be nice and safer.

If your machine is occupied with securing boot plus UEFI then the ransomware even if they show warnings that your computer is hacked still could not get administrator right to it. Yours master boot record remains safe and you should not worry about any amount of data losses.
Start up recovery maintenance can help you to recover these and it should work flawlessly.

If yours system has not UEFi and secure boot and yours antivirus completely fails to load yours operating system, and it seems yours boot loader is not loading at all and restarting your operating system time and again then it a good idea to observe and realize that yours partition of operating system is corrupted and not the boot loader and in this circumstances in order to protect the data you may consult computer experts as with traditional boot repair would not work in these instances.

In the case of rasomware intrudes into system and MFT the master files record of NTFS file system, there is no way the system to be boot again and in this case you go to computer hardware repair shop and they would take away the hard disc and and install it on a clean system and retrieve the data and then repair your system.

In most cases the use of default antivirus program from Microsoft such as Windows Defender or Microsoft security essentials protects computer and different variants of ransomware attacks through sophisticated detection mechanisms, allows customers to detect, inspect and then send to Microsoft to observer and understand ransomware attacks.

In such alarming situation device guard locks down the system and provides virtualization based on kernel security and in the case of credential guard, it protects the system against domain credentials of windows application store.

Use Microsoft baseline security adviser to keep windows up-to-date all the time. So that ransomware could not detect and exploit any of this software and your computer always stays in protected mode. It has always been a good idea to use a computer in the standard mode so that with a complete restart your computer becomes cleaner again. Most of these are inbuilt to windows operating system and some of these needs to well maintained by alerting users to run the computer in its faster and most proficient state.

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Mohan Manohar

Mohan Manohar is a blogger from India who founded Ittech back in 2007. He is passionate about all things tech and knows the Internet and computers like the back of his hand.

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