Download Windows Defender Virus Definitions
Josephina
Forced a reinstall (from the C:\Users\Admin\AppData\Local\Proclaim\Install\Installers folder) and immediately received a severe threat from Windows Defender. Logs confirm that Proclaim is disabled because of the presence of "Trojan:Win32/Bulta!rfn" - "This program is dangerous and executes commands from an attacker... Remove this software immediately."
Is your Windows 10 installation completely up to date? Including the Windows Defender virus definition? I see some false positive reports for this trojan in various forum posts which were resolved by Windows Update.
Did a system restore to just prior to the update. Checked virus definitions were fully up to date. Then opened Proclaim, was offered the update, downloaded and same result - disabled by Windows Defender.
I would expect Proclaim 1.30 to be marked as malicious for all Win 10 installs yet we cannot reproduce this in house. For the next troubleshooting step let's see if the previous version is also marked as malicious by Windows Defender on your machine. Please uninstall the current version via add/remove programs, then install the previous version from here
I'm unable to reproduce this issue currently, so we cannot be certain about exactly why Proclaim is being flagged as malware. For the time being, as long as the above files are both related to Proclaim.exe, selecting "Restore" should bypass this menu and allow Proclaim to run.
I am also experiencing this problem. I am running Windows 7. Downloaded the update to version 1.3 and Windows defender kills it. Tried this a few times and even trying to get Windows Defender to ignore Proclaim but to no avail. I followed the advice to completely remove Proclaim and reinstall version 1.29 but that fails to run.
In order to get 1.29 to install after removing 1.30 I rebooted and manually had to delete everything in the AppData folder (which will be something like C:\Users\YourAccountName\AppData\Local\Proclaim.
Depending on how far you get with version 1.30 you may need to remove the upgraded databases. Sounds like this is where you ended up Craig. A slightly less heavy handed approach is to paste the following path into Windows File Explorer
We're actively looking into the Windows Defender issue. As Peter mentioned we aren't able to reproduce internally and I can see touch points from hundreds of users running 1.30 on Windows 10. It may be related to some combination of the new Proclaim version and another application on the system.
If you don't want to do that you can uninstall the current version and install the previous version from You'll have to delete the UserManager.db file and sign back in in order to run the older version. This file can be found here %localappdata%\Proclaim\Users
Hello Rodney, this crash is happening because the new 1.30 version was able to run for long enough on your machine to upgrade the local databases. When you try to run the old version Proclaim does not know how to read the upgraded data. To work around this please delete the following file and restart Proclaim
Has this been resolved yet. My office staff are still reporting a problem. I had her opening the application using the exe file in the System1 folder since that wasn't being caught by Windows Defender, but I believe that has stopped working for her now too.
Problem: Before February 2023, the offline virus definition updates for Windows Defender could be downloaded from -us/wdsi/defenderupdates under Microsoft Defender Antivirus for Windows 11, Windows 10, Windows 8.1, and Windows Server (64-bit). These updates could then be copied to the Windows Server 2019 on the intranet for virus definition updates. However, after February, the update process has been unsuccessful. There is no response after executing the update, and the version creation date remains unchanged. What should be done to resolve this issue?
By following these steps and ensuring proper connectivity, update source, and update process, you should be able to resolve the issue and successfully update the virus definitions on your Windows Server 2019.
Thank you for your response, but none of these are the answer. My environment is physically isolated, so there is no possibility of an internet connection. It was possible to update before February, so I suspect that Microsoft has changed the website for downloading offline packages.
i had an mvebu image flagged as virus about 36 hours ago but not last evening or today. i 'm wondering if one of the virus definition sets from microsoft was a little too generic.
maybe try updating your antivirus definitions?
I schedule Windows updates according to my convenience. I would, however, like Windows Defender to automatically update itself the moment updates are released or at least be able to schedule Windows Defender to update as frequently as possible, without impacting the schedule of all other Windows updates. Can this be done?
I reason this answer because I think this is a classic X-Y problem. You want your Virusscanner to be up to date as best as possible to have the best protection, but you don't know how Windows Defender works and thus don't realise that the default settings already accomplish this.
When Windows Defender scans a file for a signature, and your computer is online, if the signature is not in the local database, it will use an online database to get information which is basically the same as first having the latest definitions and then go offline.
It is true that every once in a while, the core of Windows Defender is updated too, yes, these really do need to happen through Windows Update, but its missing the point to make your computer update every nanosecond just because maybe that update happens once every 3 or 4 months. Besides, that would mean a full windows update anyway, not just updating the definitions.
I am currently trying to figure out how to avoid running into issues when one of my users has eSet Endpoint Security installed on their Windows 10 devices. When a user installs eSet Endpoint Security it automatically disables the built-in Windows Defender. This disabled Windows Defender however is being found by the antivirus client-side check in my Access Policy. The user is then not able to log into my SSL-VPN.
I would like to know how to built an antivirus client-side check into my Access Policy where it doesn't matter which AV product a user has as long as its virus definitions have been updated at least 7 days ago, like this:
Windows Defender updates (or Microsoft Defender updates) are the regular updates released by Microsoft to keep the software up to date with the latest features and to keep bugs at bay. These updates are crucial in keeping your endpoints protected and improving the functionalities and user experience.
Owing to the exponential increase in vulnerabilities and ransomware attacks, data security in today's world is a must. 2023 witnessed a massive rise in the number of vulnerabilities - over 29,000. This alarming spike in vulnerabilities and malware resonates with the glaring need to be on top of your system's security. The prerequisites to fortify the network against such attacks are to update Windows Defender and to timely patch the vulnerabilities.
Microsoft Defender (formerly Windows Defender) is an anti-malware tool by Microsoft that protects your endpoints from data theft, viruses, malware, and so on. Furthermore, it serves to protect your systems by scanning for spyware, and unauthorized software and removing them from the systems. Initially, Windows Defender was launched with the Windows Vista installation pack but is now available as a free download with Microsoft Security Essentials.
That being said, it is imperative to update Windows Defender regularly to ensure that the systems have the latest security updates and features to fend off malware, spyware, and other software that can pose a security risk.
If you're a Microsoft 365 Family or Personal user, the good news is that Microsoft Defender (formerly Windows Defender) is already available as a part of it, without any extra subscription fee. To download the Windows Defender updates, you can follow any of the methods below:
With a patch management tool like Patch Manager Plus you can easily automate the Windows Defender update across your systems and keep track of the latest security intelligence update that is being released now and then. By leveraging the Automate Patch Deployment (APD) functionality in Patch Manager Plus, you devise and schedule policies and windows for the Windows Defender update download automatically.
So this is how you can automatically update Windows Defender definitions. To know about how to create an Automate Patch Deployment task in detail to install Windows Defender automatically, refer to this help page
If you have a Microsoft 365 subscription, Windows Defender will automatically be installed in the system, along with other apps. On the other hand, if you are using other versions of Office, you can navigate to the Microsoft store and download Windows Defender.
Antivirus software loses its effectiveness unless the administrator ensures the Windows Defender definitions remain current. Every organization has specific needs that dictate if automatic updates or a delayed option to deploy Windows Defender definitionsmakes more sense.
If Windows Defender Antivirus is active, the state value will show running. If the state value shows stopped, the administrator should restart the service unless another AV tool is present and running on the system.
Antimalware tools use virus signature or definition files to compare against incoming threats. To account for new viruses and malware, Microsoft frequently updates these Windows Defender definitions. Windows Defender Antivirus relies on these definition files to detect and remove new threats, and the latest definition files must be downloaded to each system.
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