Running Malwarebytes after the latest update slows text input to a crawl.

[Llohr]

So, when last I shut my PC down, before leaving for a week, I gave Malwarebytes permission to update.

Upon my return, I booted it up and completed the installation. Now, when using one of the most commonly used programs on my PC, my text input slows to a crawl. 

For example, I can type out, "What the hell is going on here?" in about three seconds. Then I wait for a further ten seconds while each letter is slowly added to the command line.

If I quit Malwarebytes (via right-click in the system tray/notification area), text input speed returns to normal, and it slows again if I restart Malwarebytes.

Further testing revealed that if I only turn off Ransomware Protection, input speed returns to normal.

[Malwarebytes]

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[Llohr]

Support tool logs attached.

mbst-grab-results.zip

[plb4333]

1 hour ago, Llohr said:

So, when last I shut my PC down, before leaving for a week, I gave Malwarebytes permission to update.

Upon my return, I booted it up and completed the installation. Now, when using one of the most commonly used programs on my PC, my text input slows to a crawl. 

For example, I can type out, "What the hell is going on here?" in about three seconds. Then I wait for a further ten seconds while each letter is slowly added to the command line.

If I quit Malwarebytes (via right-click in the system tray/notification area), text input speed returns to normal, and it slows again if I restart Malwarebytes.

Further testing revealed that if I only turn off Ransomware Protection, input speed returns to normal.

Sounds like CPU cycles are possibly too high. Are you up to the latest update, using the button for 'Application Update' in settings and Application TAB, and not just having regular updates that are for virus defs? If you do need an app update this might resolve what you're experiencing, since I think some users did have issues with the cpu being tied up too much..

[dcollins]

What program are you using that shows this slow text input? Does any other program exhibit any issues?

[Llohr]

9 hours ago, plb4333 said:

Sounds like CPU cycles are possibly too high. Are you up to the latest update, using the button for 'Application Update' in settings and Application TAB, and not just having regular updates that are for virus defs? If you do need an app update this might resolve what you're experiencing, since I think some users did have issues with the cpu being tied up too much..

 

CPU is practically idle. Yes, the application is updated. I've certain never had to *reboot my PC* to update definitions.

 

 

[Llohr]

28 minutes ago, dcollins said:

What program are you using that shows this slow text input? Does any other program exhibit any issues?

The only program I've noticed it in is one called CMUD.

[plb4333]

34 minutes ago, Llohr said:

 

CPU is practically idle. Yes, the application is updated. I've certain never had to *reboot my PC* to update definitions.

 

 

I don't know if you checked the CPU level during the slowing episode or afterwards, but I assume you checked during the typing and slow letter thoroughput. Have you seen any graphics related abnormalcy on computer. Sometimes a graphic/video card driver is to blame and needs updating. Or if its corrupted. These are 2 possible causes. I never mentioned rebooting

Edited May 18, 2018 by plb4333

[Llohr]

Yes, I have watched the CPU utilization while typing. I have tried it with all other programs turned off except for Malwarebytes. There is absolutely no change to text input speed under any circumstances, up to and including re-encoding a video at max CPU utilization.

The only thing that affects the speed at which text appears on the command line is turning ransomware protection on and off (and, obviously, any other action which has the affect of turning ransomware protection off).

 

It's like flipping a switch.

[plb4333]

Oh ok. That sounds like the culprit then. Sorry to hear. I was actually stumped and was about to delete my reply since it didn't offer much, especially when it was 1 specific program only. That's a new one for me when Anti-Ransomware actually involves itself with typing and not just file protections. I wonder if your program creates a temp file as you're typing, and this temp file is getting blocked causing CMUD to not communicate with it?

Edited May 18, 2018 by plb4333

[Llohr]

That's alright, I appreciate the attempt.

[plb4333]

11 minutes ago, Llohr said:

That's alright, I appreciate the attempt.

I just wanted to clarify a little bit, when I mentioned temp file, I meant some text editors create one when typing only, and that temp file actually has your text as typed on screen and I'm rather sure the program will look at it even if its not used. A safeguard it is, in case of accidental closing of text document, as an example. If CMUD does create a temporary file backup, you might want to try as a temporary measure, to have program not create temp file and see if it helps with MBAM's anti-ransomware involvement.

[Llohr]

Ahh I must have missed your edit.

This program is a telnet client, rather than a text editor. It doesn't create temp files. It does have predictive text and a command history.

 

With predictive text, I can type a letter or two and right arrow (or tab) to get suggestions based on what's it the output buffer and some predefined set of common words/commands. Command history allows me to scroll back through my previous commands, which I can choose via an option to save across multiple sessions (I do not).

I can turn off this "smart command line," but that has no affect on the text input speed.

[Llohr]

I should also note that adding an exclusion for CMUD in Malwarebytes has no effect on text input speed.

[plb4333]

6 minutes ago, Llohr said:

I should also note that adding an exclusion for CMUD in Malwarebytes has no effect on text input speed.

Have you made an exclusion to the entire folder, and not just the exe program file? Is so, then I'm at a total lost. I've only read about anti-ransomware possibly causing this, or else a graphic driver that might be corrupted or in need of update. Sorry I just thought of something. If it is anti-ransomware related, have you thought about making an exception to the telnet.exe? I'm really out of ideas! lol..Its going to take someone else for this it looks like

Edited May 18, 2018 by plb4333

[Llohr]

I had not tried excluding the folder, but I have now, to no effect.

[plb4333]

47 minutes ago, Llohr said:

I had not tried excluding the folder, but I have now, to no effect.

I wish I could of been more help for you. Sometimes an issue seems so simple, but can go very deep and this is where I have to stop I use to see this type of thing years back in a browser and its URL window, but never did find out what was the issue, but an update took care of it.

[dcollins]

I can't reproduce this. Do you have any scripts or custom settings configured?

[Llohr]

I do, but I don't have to load any sessions or packages for this effect. I can simply start CMUD and, with nothing loaded, my text input lags.

If it matters, I'm running Windows 10 pro, and I got the April Update at the same time as the Malwarebytes update, and have verified with other users that the April Update alone causes no problems, in addition to having verified that it's specifically ransomware protection that causes the issue.

 

Further tech specs, if it matters:

Xeon E3-1240 v5, 32GB ECC RAM, GTX 1070 (most recent driver update: 12/20/2017).

Edited May 18, 2018 by Llohr

[plb4333]

2 hours ago, Llohr said:

I do, but I don't have to load any sessions or packages for this effect. I can simply start CMUD and, with nothing loaded, my text input lags.

If it matters, I'm running Windows 10 pro, and I got the April Update at the same time as the Malwarebytes update, and have verified with other users that the April Update alone causes no problems, in addition to having verified that it's specifically ransomware protection that causes the issue.

 

Further tech specs, if it matters:

Xeon E3-1240 v5, 32GB ECC RAM, GTX 1070 (most recent driver update: 12/20/2017).

Nice system I might add! Xeon and a fast GTX. I envy you when I'm using my bottom of the line chromebook

[Llohr]

I'm underwhelmed with the 1070 right now, hoping for the next gen to bring a massive performance boost to power a 3440x1440 120hz monitor. Triple-A games tend to run under 60fps at that resolution ?

[plb4333]

15 minutes ago, Llohr said:

I'm underwhelmed with the 1070 right now, hoping for the next gen to bring a massive performance boost to power a 3440x1440 120hz monitor. Triple-A games tend to run under 60fps at that resolution ?

sounds like a gtx 1080 would do it then huh? it can handle 4k -63 fps....since this is off topic, I'll close myself