Computer and network performance issue with 4.5.22 update

[2d2dub]

I've been having performance issues I hadn't had before and I just figured out what it was - Malwarebytes that I had recently updated to 4.5.22.

Whenever I'm copying files over network to this computer, OR downloading from FTP to this computer at speeds over about 300mbps, it's causing system lock ups, audio stuttering and temporary audio lock ups.

The issue only occurs with Malwarebytes (v4.5.22) running.

As soon as I shutdown Malwarebytes, even when mid-transfer, performance resumed.  If I start Malwarebytes again, the issue resumes.  I didn't see a large increase in CPU usage with MBAM running, but it's definitely interfering with the system and appears to be interrupting the PCI bus; interrupting sound on my Soundblaster Z, as well as causing Windows to lock up intermittently during data transfer.

These are the devices that are directly affected in some way, but only when data transfer is higher.  :

Bus 5, Device 0, Function 0    Creative SB Recon3D PCIe Audio Controller
Bus 0, Device 31, Function 2    Intel 82801HB(M)/IB(M) ICH8(M)/ICH9(M) - SATA RAID Controller
Bus 0, Device 25, Function 0    Intel Ethernet Connection I217-V
Bus 0, Device 31, Function 0    Intel Z87 Chipset - LPC Interface Controller [C-2]
Bus 6, Device 0, Function 0    LSI SAS2208 PCI Express Fusion-MPT SAS-2 Controller
Bus 2, Device 0, Function 0    Samsung NVMe Controller [144D-A804] [NoDB]

The network speed (1gbe) of the data copy during testing was 953mbps, which is as much as I can ask out of it.  The issue with MBAM appears to be related to the data throughput over the NIC, but affects both Northbridge and Southbridge devices.  If the data transfer is low (for example, 35MiB/s over FTP), there is no issue.  If it's 70MiB/s, the issue is apparent, but not severe.  If I let go of the reigns and use up to/over 100MiB/s of bandwidth, OR if I max out the data transfer speed over LAN, with MBAM running, the system is unusable and I can't even listen to the audio from TV (routes through PC to AMP) because it's being severely affected by MBAM somehow.

Since this issue appears to have just began with the recent update, I'd like to get this tracked down and fixed.  At this rate, I'm unable to carry out normal duties with MBAM running.

[Malwarebytes]

***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
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3. Place a checkmark next to Accept License Agreement and click Next
4. Navigate to the Advanced tab
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   • 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.
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[Porthos]

Please do the following so that we may take a closer look at your installation for troubleshooting:

NOTE: The tools and the information obtained is safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

 

• Download the Malwarebytes Support Tool
• In your Downloads folder, open the mb-support-x.x.x.xxx.exe file
• In the User Account Control pop-up window, click Yes to continue the installation
• Run the MBST Support Tool
• In the left navigation pane of the Malwarebytes Support Tool, click Advanced
• In the Advanced Options, click Gather Logs. A status diagram displays the tool is Getting logs from your machine
• A zip file named mbst-grab-results.zip will be saved to your desktop, please upload that file on your next reply

Thanks

[2d2dub]

14 hours ago, Porthos said:

Please do the following so that we may take a closer look at your installation for troubleshooting:

NOTE: The tools and the information obtained is safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

 

• Download the Malwarebytes Support Tool
• In your Downloads folder, open the mb-support-x.x.x.xxx.exe file
• In the User Account Control pop-up window, click Yes to continue the installation
• Run the MBST Support Tool
• In the left navigation pane of the Malwarebytes Support Tool, click Advanced
• In the Advanced Options, click Gather Logs. A status diagram displays the tool is Getting logs from your machine
• A zip file named mbst-grab-results.zip will be saved to your desktop, please upload that file on your next reply

Thanks

Is there somewhere I can privately post the results?  I don't want user, hardware MACs and other data displayed in a public forum.

[Porthos]

In this section of the forum, only you and authorized members can access the files.

[2d2dub]

On 2/19/2023 at 8:12 PM, Porthos said:

Please do the following so that we may take a closer look at your installation for troubleshooting:

NOTE: The tools and the information obtained is safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

 

• Download the Malwarebytes Support Tool
• In your Downloads folder, open the mb-support-x.x.x.xxx.exe file
• In the User Account Control pop-up window, click Yes to continue the installation
• Run the MBST Support Tool
• In the left navigation pane of the Malwarebytes Support Tool, click Advanced
• In the Advanced Options, click Gather Logs. A status diagram displays the tool is Getting logs from your machine
• A zip file named mbst-grab-results.zip will be saved to your desktop, please upload that file on your next reply

Thanks

Thank you.

mbst-grab-results.zip

[Porthos]

Even though it just seems to have happened with the latest version, You are also running ESET and Private internet access.

I would recommend creating exclusions between Malwarebytes and Your AV to help prevent any possible conflicts or performance issues.  Please add the items listed in this support article to Your AV 's allow list(s)/trust list(s)/exclusion list(s), particularly for any of its real-time protection components and likewise add Your AV 's program folder(s) (likely located under C:\Program Files and/or C:\Program Files (x86)) to Malwarebytes' Allow List using the method described under the Allow a file or folder section of this support article and do the same for its primary data folder which is likely located under C:\ProgramData (you may need to show hidden files and folders to see it).

 

Also, please refer to this support article which lists several known applications which conflict with the Web Protection in Malwarebytes currently, which includes Private Internet Access.

 

[2d2dub]

8 hours ago, Porthos said:

Even though it just seems to have happened with the latest version, You are also running ESET and Private internet access.

I would recommend creating exclusions between Malwarebytes and Your AV to help prevent any possible conflicts or performance issues.  Please add the items listed in this support article to Your AV 's allow list(s)/trust list(s)/exclusion list(s), particularly for any of its real-time protection components and likewise add Your AV 's program folder(s) (likely located under C:\Program Files and/or C:\Program Files (x86)) to Malwarebytes' Allow List using the method described under the Allow a file or folder section of this support article and do the same for its primary data folder which is likely located under C:\ProgramData (you may need to show hidden files and folders to see it).

 

Also, please refer to this support article which lists several known applications which conflict with the Web Protection in Malwarebytes currently, which includes Private Internet Access.

Although none of the software appears to be conflicting, I have followed the suggestions.  What I can say for sure is, the Web Protection module is the fault.  If I disable it, the issue no longer persists.

The performance of the Web Protection module is clearly the issue.  There are no issues when reading/moving data over networks, but only writing data over the NIC with the Web Protection module active.

 

[2d2dub]

Ugh.  Didn't mean to add it to the quote..

Although none of the software appears to be conflicting, I have followed the suggestions.  What I can say for sure is, the Web Protection module is the fault.  If I disable it, the issue no longer persists.

The performance of the Web Protection module is clearly the issue.  There are no issues when reading/moving data over networks, but only writing data over the NIC with the Web Protection module active.