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Windows 7: MalwareBytes 2.0.1 taking forever to scan

20 Apr 2014   #51
AdvancedSetup

Windows 7 Pro x64
 
 

A complete full scan including rootkit scan took just over 28 minutes with a little less than half a million files scanned.

Quote:
Malwarebytes Anti-Malware
Malwarebytes | Free Anti-Malware & Internet Security Software

Scan Date: 4/19/2014
Scan Time: 11:15:40 PM
Logfile:
Administrator: Yes

Version: 2.00.2.1005
Malware Database: v2014.04.20.02
Rootkit Database: v2014.03.27.01
License: Premium
Malware Protection: Enabled
Malicious Website Protection: Enabled
Self-protection: Disabled

OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: AS

Scan Type: Custom Scan
Result: Completed
Objects Scanned: 453542
Time Elapsed: 28 min, 2 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

Processes: 0
(No malicious items detected)

Modules: 0
(No malicious items detected)

Registry Keys: 0
(No malicious items detected)

Registry Values: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Folders: 0
(No malicious items detected)

Files: 0
(No malicious items detected)


Physical Sectors: 0
(No malicious items detected)


(end)



My System SpecsSystem Spec
.
20 Apr 2014   #52
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Hi AdvancedSetup; Happy Easter.

Some information that might be helpful.
**Full scan including rootkit.
Total time 30:54
Objects Scanned: 331160
Objects infected: 0
---------------------
The scan goes very quick until 70259 file, time 10:40
C:\Windows\Web\Walpaper\Scenes\img27.jpg
Then is does nothing until time 24:13. Stays on file 70259.
Then it goes very fast again until done at time 30:54.
When the scan is working fast about 60% CPU and when sitting on file 70259 CPU is 3 to 5 %.
The .jpg is a OEM Windows 7 built in picture.
If I remove a picture then the system just sit on the next Windows 7 picture in line and does nothing for about half the scan time.
It does not stop for any of my own installed pictures only Windows 7 OEM pictures.
As you can see almost half of the scan time is sitting on OEM pictures doing nothing monitoring Task Manager Performance.
This may or may not be normal but it does it on both of my computers.

When a scan is started you can not stop the scan until it is complete. I think this is probably normal.
Malwarebytes doesn't know whether I'm stopping the scan or a infection is trying to stop the scan. So it just keeps scanning.
I really don't have a problem with that because if I ask for a scan that is what I want done.

**Could you reply so I at least know you read my posts.
Thanks Layback Bear.
My System SpecsSystem Spec
20 Apr 2014   #53
jonnyhillow

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Just to clarify my previous post, it seems different people are concerned about or may be having very different issues . I myself don't have any issues with the new Mbam's scanning speed , yes it takes a little longer but that's fine with me .

What bothers me is the mediocre at best overall performance of detecting malware and actually getting rid of it effectively. That is the main argument in the Softpedia review , it found the new Mbam to be far less effective than the old at detection and especially removal .

Is there any other independent analysis that would prove differently , if so I would be extremely interested to read about it .

Thank you
My System SpecsSystem Spec
.

20 Apr 2014   #54
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Jack there have been others also reporting MBAM hanging on a wallpaper image too.

I wouldn't take any Softpedia review as serious, they are far from independent.
My System SpecsSystem Spec
20 Apr 2014   #55
scr

1. Windows 7 Home Premium sp1 - 64bit 2. Windows 7 Pro sp1 - 64bit
 
 

Quote   Quote: Originally Posted by AdvancedSetup View Post
A complete full scan including rootkit scan took just over 28 minutes with a little less than half a million files scanned.

Quote:
Malwarebytes Anti-Malware
Malwarebytes | Free Anti-Malware & Internet Security Software

Scan Date: 4/19/2014
Scan Time: 11:15:40 PM
Logfile:
Administrator: Yes

Version: 2.00.2.1005
Malware Database: v2014.04.20.02
Rootkit Database: v2014.03.27.01
License: Premium
Malware Protection: Enabled
Malicious Website Protection: Enabled
Self-protection: Disabled

OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: AS

Scan Type: Custom Scan
Result: Completed
Objects Scanned: 453542
Time Elapsed: 28 min, 2 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

Processes: 0
(No malicious items detected)

Modules: 0
(No malicious items detected)

Registry Keys: 0
(No malicious items detected)

Registry Values: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Folders: 0
(No malicious items detected)

Files: 0
(No malicious items detected)


Physical Sectors: 0
(No malicious items detected)


(end)
Are you using the next build? If so has this build been released?

Note "Version: 2.00.2.1005" in the above quote. My version is 2.00.1.1004.
My System SpecsSystem Spec
20 Apr 2014   #56
UsernameIssues

W7 Pro SP1 64bit
 
 

Quote   Quote: Originally Posted by AdvancedSetup View Post
@UserNameIssues

There have been reported issues with this and due to the complexity of differences between systems I cannot say for sure that it will be corrected in the next build for you but some of our Experts and in my own testing show the scans to be much faster now. Here is a scan I did earlier tonight with an updated build of the program that is not public yet but will be soon. Once it is released and you test it out and do continue to have issue please open a ticket on the forum and I'll be happy to assist you...........
Thanks for the feedback.

I use v1.75 on the host computer... so I don't have any issues that need solving.

The videos were made using a fresh (fully patched) install of W7 into a VirtualBox VM. Only VB's Guests Additions was installed. No other software or antivirus was installed. That testing and those videos were just meant to help document what happens (or does not happen) during those long (20+ minutes) pauses. As long as this is a know issue, then I'll just watch for the solution in future builds.

Thanks again for your time.
My System SpecsSystem Spec
20 Apr 2014   #57
Jacee
Microsoft MVP

Windows 7 Ultimate 32bit SP1
 
 

We should look at the time it takes to do a full scan based on the specs...


Hard Drives 1 x Mushkin Chronos 120 GB SSD 1 x WD Silicon Edge 64GB SSD 1 x WD 160GB SATA 1 x WD 500GB SATA 1 X WD 1TB SATA
My System SpecsSystem Spec
20 Apr 2014   #58
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot
 
 

Quote   Quote: Originally Posted by Jacee View Post
We should look at the time it takes to do a full scan based on the specs...


Hard Drives 1 x Mushkin Chronos 120 GB SSD 1 x WD Silicon Edge 64GB SSD 1 x WD 160GB SATA 1 x WD 500GB SATA 1 X WD 1TB SATA
Ah. Those look like the specs from my machine. With MBAM 1.75, the same full scan on all drives took only 4 1/2 hours, give or take a few minutes. That's quite a lot less than 23+ hours and it still not being finished. Also, all but the 160 GB drive are around 50% full. I would say at most, there is less than 1TB of data.

MalwareBytes 2.0.1 taking forever to scan-capture52.png

Overall, the performance of MBAM 2.0.1.1004 is significantly worse that its predecessor with the rootkit option enabled. I haven't had the opportunity to run the full scan without the rootkit option enabled yet, but I am doing so as I write this. I'll report on the length of time it takes tomorrow.


My System SpecsSystem Spec
20 Apr 2014   #59
AdvancedSetup

Windows 7 Pro x64
 
 

Happy Easter to all.

Yes I read your post Layback Bear and yes there have been some reports of certain files that can cause a slowdown or freeze. Data corruption can also do this - the updated version is hopefully a little better but not sure we'll be able to completely eliminate or not but we're trying.

@Mellon Head
Agreed that the Anti-Rootkit scanner you're using is slow. The updated one I'm using is faster, but see below in that it will never be a fast scan like a Threat / Quick Scan is.

Yes, I am using an updated build that is not currently available to the public but should be soon (it is available to our Experts group) and yes there are improvements in the new Anti-Malware scan times. Most hopefully should see faster scan times with it once it is made available to the public. In fact there was another version released internally since I scanned with my version that is supposed to improve some other items in the program.

As for the Softpedia review as with most it is very lacking in detail and what was really scanned and used was not fully detailed. We do not hide the fact that we do not detect older infections, never have and probably never will. Once we stop seeing infections in the wild they are usually pulled from our database and left up to your antivirus to deal with.

I know some of you may not agree and that is certainly your prerogative however I see no technical reason for doing Anti-Rootkit scans on a routine basis and certainly not daily. I've been doing Enterprise level computer support now for well over 20 years and I play with infections and to date have only gotten infected once by accident. I've been a lead support engineer for the security of over 130,000 desktops as well as thousands of servers and in my time as a lead we never had a single break out.

Probably no harm in doing daily extensive scans for a mechanical drive as none of them seem to last the 10+ years that they used to but doing extensive daily work on most SSD drives can potentially greatly reduce their life span.

One of our Experts did post a log of multiple mechanical drives and Terabytes of data and the scan time for an Anti-Rootkit scan was nearly cut in half. It was still a long time of over 10 hours but I'm not sure what else to compare it to. I've done full scans with terabytes of data using both Symantec and Kaspersky antivirus and both products took almost 48 hours to complete the scans. I have not tried to compare similar scan time of antivirus vs Malwarebytes but again we're not the same product type and don't claim to be and I've always said that antivirus is better at flat file scanning than we are. With no load points and an old infection we certainly can miss something that your antivirus would probably pick up. We operate at our best on a live infection in Normal Windows mode. If you use Safe Mode that too is not an optimal method for our program to do it's job.
My System SpecsSystem Spec
21 Apr 2014   #60
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Does Malwarebytes put its products through a rigorous QAQC process prior to releasing new versions to the public?

I recall a similar fiasco a while back, also related to an update if Im not mistaken?

Software developers really need to keep an eye on the quality of their software if they wish to retain their customers.
My System SpecsSystem Spec
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 MalwareBytes 2.0.1 taking forever to scan




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