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    What is Application Whitelisting: Complete Guide

    The year 2018 reported 16,517 application-related security issues worldwide. With such an alarming number of instances, if your IT team is still dependent on antivirus software to save business data, there’s a high chance your enterprise may have to withstand a major malware exploit. But using an application whitelisting solution, companies can achieve a secure and well-rounded application environment in the business. But before we understand what application whitelisting is, let’s quickly run through some common terms associated with it.

    application whitelisting
    A step to prevent malicious attack with Application Whitelisting

    What does whitelisted mean?

    As a cybersecurity strategy, whitelisting allows users to only use programs, applications, and websites on computers based on what administrators have explicitly allowed in advance. 

    Instead of combatting an actual cyber attacker by staying one step ahead and identifying the malicious application, IT can instead compile a list of approved applications that can be pushed on a computer or mobile device for users to access. This way, whatever users can access has been deemed safe by the administrators.

    For any organization, whitelisting is an extreme lockdown measure that can keep many cybersecurity problems away but only if it is implemented correctly. Whitelisting isn’t a foolproof barrier to attacks and is often inconvenient and frustrating for end-users. Therefore, it is important for IT admins need to carefully implement it and ensure proper ongoing administration for the policy to work efficiently.

    Read More: What is Website Whitelisting: Why and How to Do It?

    What is the Difference between Whitelisting VS. Blacklisting?

    Blacklist is a slightly more familiar concept because we use this term more frequently in our daily lives. A blacklist consists of a list of things that are dangerous and should be blocked from mobile devices, making devices more secure and protecting them from unwanted malware. Most anti-malware and antivirus programs are blacklisted because they include known malicious code, making the program automatically take over your computer. 

    Whitelist, on the other hand, is a simple inversion of a blacklist. Simply put, if you have pushed a whitelist policy, then you’ve blacklisted everything out except whatever is on your whitelist. From a distant look, this seems to solidify your security measures because you don’t have to worry about any kind of malicious code threatening your infrastructure. This is because whitelisting only permits users to access things that they know are safe and secure. 

    Learn More: Mobile Threat Defense (MTD): What Companies Should Know

    What is Application Whitelisting?

    Application whitelisting only allows a certain set of applications to run on a secure mobile device. Inversely, application blacklisting blocks defined applications from being installed on the targeted device. For instance, if a blacklisted application is already running on a managed device, it will be blocked once it is blacklisted. In fact, blacklisting simply removes applications from the device’s home screen.

    When you whitelist an application(s) all other applications, except the whitelisted ones, will be explicitly defined and blocked immediately. Additionally, their icons will be removed from the home screen of the user’s managed devices. This way, IT admins can ensure that end-users are only able to install or use applications that are explicitly defined.

    what does whitelisted mean
    Source

    The app whitelisting process involves creating a list of trusted applications to run on managed devices. Given the fact that applications are often the route through which cyberattacks take place, allowing only what you trust (the process of whitelisting ) cannot be taken lightly because it may lead to either financial losses or data leakages.  

    However, whitelisting comes with some pretty obvious drawbacks. By whitelisting, you restrict a user’s freedom to use applications and devices the way they want and people naturally think of work computers as “their” assets because they sit in front of them for at least eight hours every day. Also building a whitelist needs more groundwork. This is because blacklisting known malware and attack sites can be easily put together by vendors, every company’s whitelist programs will be unique depending on the industry they serve.

    Read More: How to Whitelist or Blacklist apps on Android & iOS

    Threats That Can be Mitigated with Application Whitelisting 

    Application whitelisting can defend against two major kinds of security threats as mentioned here:

    • Malware
    • Shadow IT

    Malicious software payloads (malware) such as ransomware or keyloggers will be unable to execute if not whitelisted by the admin. 

    End users often may try to install insecure or unlicensed programs on their systems. If these applications or programs are not on the whitelist, individuals won’t be able to install them and IT departments will be immediately be informed about it.

    With massive technological advancement shaping the corporate world, users are heavily dependent on applications to carry out even the smallest tasks. At this very minute, big and small vendors alike have put their heads together to build a new application. With such high demand and such a short span of time, vendors may rely on open-source code for creating apps quickly. To get into a secured network or infrastructure, cyberattackers have begun to take advantage of open-source codes and have started inserting their backdoors on them to easily steal data or launch malware into a business ecosystem.

    This is why enterprises need to be very cautious in ensuring no applications allowed in their network should have any room for a malicious attack. IT admins can exercise control by resorting to whitelisting applications.

    Tips for Creating an Application Whitelisting

    The application whitelisting process will largely vary depending on what kind of whitelisting tool a company uses. Some proven best practices that IT admins can adhere to, to carry out this process are mentioned here.

    1. Before deploying any app whitelisting solution, it is important to gather an inventory of the applications that the organization cannot work without. All these applications will mandatorily be part of the organization’s whitelisting policy. To enforce endpoint security, admins can also rely on a mobile device management tool (which typically also offers app whitelisting) ensuring that any app or program which is not listed in the policy will not be allowed to run. 
    1. How you define whitelisted applications is very important. Some companies may think it is best to whitelist entire folders or file names. But this approach is not recommended because it may make an organization vulnerable to threats or ransomware attacks. Identifying applications by their folders or file names should be avoided because malware authors can create malicious code with the same names or folders as legitimate applications and fool the app whitelisting tool. Identifying applications using cryptographic file hash or their publisher’s signature can ensure good endpoint security. 
    1. Another viable technique is for admins to identify applications on the basis of the registry keys they create. This technique is slightly less effective because the issue with creating a whitelisting policy around registry keys is that all executable code does not utilize the registry. For instance, most PowerShell scripts don’t create any registry entries, so a  malware author can easily spoof a legitimate application’s registry keys. Therefore, it is not highly recommended to build an entire whitelisting policy based on registry keys, which can invite various threats to endpoint security. 

    What is the Importance of Whitelisting Application?

    The scope of app whitelisting doesn’t just end at protecting your devices against unwanted malware. IT teams can also streamline inventory management by creating application whitelists. Without a whitelist policy, enterprises have granted users access to all applications, even when they’re irrelevant to an employee’s job. This may result in the users misusing applications running on their devices, causing a dip in productivity. Apart from that, unused and irrelevant applications consume more data and storage space, and IT admins simply waste their time in managing the patches and licenses associated with these apps.

    By whitelisting applications, IT admins can resolve all these issues and ensure that users only have access to specific applications based on their job requirements.

    Read More: How to Whitelist Applications on Windows 10 Devices

    Best Practices Associated with Application Whitelisting 

    • Planning the whole process takes place long before the IT team starts building the actual whitelist. It is important for IT admins to critically understand and observe the application needs of every employee working in the company before going ahead with the list.
    • To reduce the volume of policies, IT can associate the same application whitelist with a group or department that has similar requirements.
    • An undefined application whitelist policy will do more harm than good. Therefore, it is important to deploy tentative whitelists in audit mode, which will allow all applications to run except the blacklisted ones. It is recommended that IT admins enable this mode using log collection, which takes place every time an employee tries to access a blacklisted application.
    • Once the whitelist policy is finalized, IT admins can modify deployed policies in order to have a stricter control, allowing only whitelisted applications to run.

    Applications Whitelisting with Scalefusion

    With Scalefusion Mobile Device Management, IT admins can manage devices remotely. IT admins can also undertake whitelisting or blacklisting applications for Android, iOS, Mac, and Windows devices using Scalefusion. 

    IT teams can simply create and enforce extensive application policies for all managed devices. They can whitelist or blacklist applications and alternatively also lock managed devices into Single App kiosk mode to block access to any other app.

    Application whitelisting can help reduce preliminary IT challenges involving blocking non-business apps and ensuring employee productivity with up-to-date business apps on all managed devices.

    FAQs

    1. What is application allowlisting / whitelisting?

    Application allowlisting, also known as whitelisting, is a cybersecurity practice that permits only approved applications to run on a system while blocking all others. It creates a list of authorized programs, enhancing security by preventing the execution of unauthorized software and potential malware threats.

    2. What is the Importance of Application Whitelisting?

    Application whitelisting is crucial for mobile security as it enhances control over software execution. By permitting only approved applications to run, it mitigates the risk of malware infections and unauthorized software installations. This proactive approach bolsters system security, safeguarding against various threats and minimizing potential damage to the organization.

    3. What is application control vs whitelisting?

    Application control involves managing what applications can execute on a device, often through policies enforced by IT. Whitelisting is a specific form of application control, focusing on allowing only approved applications to run while blocking others, enhancing security against unauthorized software.

    4. Why should we use application whitelisting?

    Application whitelisting offers robust security by permitting only trusted applications to run, effectively preventing the execution of malware and unauthorized software. This proactive approach reduces the attack surface, minimizes the risk of breaches, and enhances overall system integrity and reliability.

    5. What is the Difference between Whitelisting VS. Blacklisting?

    A blacklist consists of a list of things that are dangerous and should be blocked from mobile devices, making devices more secure and protecting them from unwanted malware. Whitelist, on the other hand, is a simple inversion of a blacklist. Simply put, if you have pushed a whitelist policy, then you’ve blacklisted everything except whatever is on your whitelist.

    Yesha Gangani
    Yesha Gangani
    Yesha is a professional writer with a hidden talent of promoting persona tactics to catch the attention of a nerd enthusiast. She has a high caliber of attracting, engaging and educating any tech-savvy individual with latest trends and insights in the industry.

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