lostitinerant Posted January 21, 2021 ID:1433609 Share Posted January 21, 2021 Hi, Windows 10 20H2 fresh install, MalwareBytes Premium 4.3.0. I've had several BSoDs in the last month all naming mwac.sys as the cause, this is the first since a Windows re-install two days ago. Details below, other AV product running is HitmanPro.Alert 3.8.8 build 889. I've turned off Web Protection in MWB for now but would expect to be able to enable it at some point. Any feedback or progress with this? I see it's a fairly consistent problem for people. Blue Screen Error - January 21, 2021 5:55:48 AM Bug check code 0x00000139 Bug check parameters 0x0000000000000003, 0xffff9089cd95f7a0, 0xffff9089cd95f6f8, 0x0000000000000000 Device name: Malwarebytes Web Protection Driver version: 1.0.0.66 Driver path: C:\WINDOWS\system32\DRIVERS\mwac.sys Thanks Adrian Link to post Share on other sites More sharing options...
Staff Malwarebytes Posted January 21, 2021 Staff ID:1433610 Share Posted January 21, 2021 ***This is an automated reply*** Hi, Thanks for posting in the Malwarebytes for Windows Help forum. If you are having technical issues with our Windows product, please do the following: Malwarebytes Support Tool - Advanced Options This feature is designed for the following reasons: For use when you are on the forums and need to provide logs for assistance For use when you don't need or want to create a ticket with Malwarebytes For use when you want to perform local troubleshooting on your own How to use the Advanced Options: Spoiler Download Malwarebytes Support Tool Double-click mb-support-X.X.X.XXXX.exe to run the program You may be prompted by User Account Control (UAC) to allow changes to be made to your computer. Click Yes to consent. Place a checkmark next to Accept License Agreement and click Next Navigate to the Advanced tab The Advanced menu page contains four categories: Gather Logs: Collects troubleshooting information from the computer. As part of this process, Farbar Recovery Scan Tool (FRST) is run to perform a complete diagnosis. The information is saved to a file on the Desktop named mbst-grab-results.zip and can be added as an email attachment or uploaded to a forum post to assist with troubleshooting the issue at hand. Clean: Performs an automated uninstallation of all Malwarebytes products installed to the computer and prompts to install the latest version of Malwarebytes for Windows afterwards. The Premium license key is backed up and reinstated. All user configurations and other data are removed. This process requires a reboot. Repair System: Includes various system-related repairs in case a Windows service is not functioning correctly that Malwarebytes for Windows is dependent on. It is not recommended to use any Repair System options unless instructed by a Malwarebytes Support agent. Anonymously help the community by providing usage and threat statistics: Unchecking this option will prevent Malwarebytes Support Tool from sending anonymous telemetry data on usage of the program. To provide logs for review click the Gather Logs button Upon completion, click OK A file named mbst-grab-results.zip will be saved to your Desktop Please attach the file in your next reply. To uninstall all Malwarebytes Products, click the Clean button. Click the Yes button to proceed. Save all your work and click OK when you are ready to reboot. After the reboot, you will have the option to re-install the latest version of Malwarebytes for Windows. Select Yes to install Malwarebytes. Malwarebytes for Windows will open once the installation completes successfully. Screenshots: Spoiler Spoiler If you are having licensing issues, please do the following: Spoiler For any of these issues: Renewals Refunds (including double billing) Cancellations Update Billing Info Multiple Transactions Consumer Purchases Transaction Receipt Please contact our support team at https://support.malwarebytes.com/hc/en-us/requests/new to get help If you need help looking up your license details, please head here: Find my premium license key Thanks in advance for your patience. -The Malwarebytes Forum Team Link to post Share on other sites More sharing options...
lostitinerant Posted January 21, 2021 Author ID:1433629 Share Posted January 21, 2021 Logs attached. mbst-grab-results.zip Link to post Share on other sites More sharing options...
exile360 Posted January 21, 2021 ID:1433632 Share Posted January 21, 2021 Greetings, Please try installing the newest beta for Malwarebytes which corrects several known BSOD issues with MWAC.sys. To do so, open Malwarebytes and go to settings by clicking the small gear icon in the upper right, then scroll down to the Beta updates section under the General tab and enable the option, then scroll back to the top and click the Check for updates button and restart your system if prompted to do so. Once that is done, test to see if the BSOD issue is resolved and let us know how it went. Thanks 1 Link to post Share on other sites More sharing options...
lostitinerant Posted January 21, 2021 Author ID:1433647 Share Posted January 21, 2021 Thanks, beta installed 4.3.0.98 / 1.0.36045 / 1.0.1153. Unfortunately testing involves waiting to see what happens. The last BSoD was at 05:53 when the machine (and I) were idle. Link to post Share on other sites More sharing options...
exile360 Posted January 21, 2021 ID:1433650 Share Posted January 21, 2021 That's OK, just let us know if you encounter another BSOD, and if you don't encounter one within say a week or more (assuming you experienced it that often previously), then that should mean it's stable. In the meantime, if you can provide the following memory dumps from previous crashes, I can ask a member of the team to take a look and see if the cause of the BSODs you experienced were the result of the issue addressed in the beta: C:\WINDOWS\Minidump\012121-10078-01.dmp C:\WINDOWS\MEMORY.DMP Since that second file listed is likely to be quite large, your best bet would be to ZIP both files and upload them to WeTransfer.com, clicking the circular ... button on the page and selecting the option to send the file as a link, then once the upload completes, post the link here. Once the memory dumps are analyzed, they can likely provide confirmation on whether the issue should be fixed for you with the beta. Link to post Share on other sites More sharing options...
lostitinerant Posted January 21, 2021 Author ID:1433653 Share Posted January 21, 2021 Uploaded mdump-012121.zip, https://we.tl/t-76F8T5pwDn Thanks Link to post Share on other sites More sharing options...
exile360 Posted January 21, 2021 ID:1433666 Share Posted January 21, 2021 @nikhils would you please check the provided memory dump to ensure it should be fixed by the beta when you get a chance? Thanks Link to post Share on other sites More sharing options...
exile360 Posted January 28, 2021 ID:1435202 Share Posted January 28, 2021 A new version of Malwarebytes has just been released which includes fixes for several BSOD issues. Details are available in this post. To install the new version, open Malwarebytes and navigate to settings by clicking the small gear icon in the upper right, then click the Check for updates under the General tab and allow it to download and install the new version, restarting your system once it completes to ensure that the new components are loaded into memory. Link to post Share on other sites More sharing options...
lostitinerant Posted January 28, 2021 Author ID:1435208 Share Posted January 28, 2021 Thanks for the update and thanks for your help, appreciated. Link to post Share on other sites More sharing options...
exile360 Posted January 28, 2021 ID:1435210 Share Posted January 28, 2021 You're welcome, please let us know how it goes and if the issue returns. Thanks Link to post Share on other sites More sharing options...
lostitinerant Posted January 28, 2021 Author ID:1435211 Share Posted January 28, 2021 Will do, haven't seen it since installing the beta seven days ago. I noticed the latest fix was the same bug check code I had so hopeful it is resolved. Link to post Share on other sites More sharing options...
exile360 Posted January 28, 2021 ID:1435213 Share Posted January 28, 2021 That's good, yes, I believe it should resolve the issue. Link to post Share on other sites More sharing options...
Thundercat Posted February 23, 2021 ID:1440734 Share Posted February 23, 2021 Still currently happens when I attempt to use a VPN. Link to post Share on other sites More sharing options...
Root Admin AdvancedSetup Posted February 23, 2021 Root Admin ID:1440785 Share Posted February 23, 2021 2 hours ago, Thundercat said: Still currently happens when I attempt to use a VPN. Please post the MBST logs in your other topic @Thundercat https://forums.malwarebytes.com/topic/270065-mwacsys-bsod/ Thank you Link to post Share on other sites More sharing options...
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