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msb.exe is not going away

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Hello everyone,

Hope everyone had a great time in new year! :welcome:

Right back to work shall we?:).

I am keep getting msb.exe, b.exe and f.exe Trojans on every scan however Malwarebytes says it will be removed after a restart. However, it doesn't remove them. Upon restart when I run the scan again it comes up with three files again.

Here is the log:


Malwarebytes' Anti-Malware 1.43

Database version: 3478

Windows 6.0.6001 Service Pack 1

Internet Explorer 8.0.6001.18865

02/01/2010 17:16:13

mbam-log-2010-01-02 (17-16-13).txt

Scan type: Full Scan (C:\|)

Objects scanned: 241629

Time elapsed: 1 hour(s), 32 minute(s), 8 second(s)

Memory Processes Infected: 0

Memory Modules Infected: 0

Registry Keys Infected: 0

Registry Values Infected: 0

Registry Data Items Infected: 0

Folders Infected: 0

Files Infected: 3

Memory Processes Infected:

(No malicious items detected)

Memory Modules Infected:

(No malicious items detected)

Registry Keys Infected:

(No malicious items detected)

Registry Values Infected:

(No malicious items detected)

Registry Data Items Infected:

(No malicious items detected)

Folders Infected:

(No malicious items detected)

Files Infected:

C:\Windows\msb.exe (Trojan.Agent) -> Delete on reboot.

C:\Users\USER\AppData\Local\Temp\b.exe (Trojan.Dropper) -> Delete on reboot.

C:\Users\USER\AppData\Local\Temp\f.exe (Trojan.Dropper) -> Delete on reboot.


Even after reeboot it does not get deleted. Any ideas?

I was also getting message upon windows restart that Windows has blocked the program Malwarebytes. I re-enabled it but the program still doesn't remove the files.

Please advise.

Many thanks



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Hello Jehanzeb, and welcome to Malwarebytes.org :welcome: A very Happy New Year to you as well! :)

We don't work on Malware removal in the general forums.

Please read and follow the directions here, skipping any steps you are unable to complete. Then post a NEW topic here.

One of the expert helpers there will give you one-on-one assistance when one becomes available.

Basically, please re-post your post at this link here:


As we do not work on malware removal in the general forums. Please note that it can take up to 48 hours or more at busier times to get a response, so please be patient and do not reply to your own post asking for help unless its been longer than 48 hours.

Also, as a side note, when replying, please use the "add-reply" button or erase what the person you are replying to said, as this makes the forum easier to read.

Thank you :)

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@ Jehanzeb

It's alright :P That's why we re-direct people to the correct place to post their logs and get help with malware-removal :D

You are very welcome, and its okay, now you know the correct place to post if you need malware-removal assistance.

Take care and happy 2010! :D

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