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Viruses and worms
1

Hi, my computer got infected by a USB stick of my friend. After that moment, Avast keep popping up a message say that it blocked a malicious website every 30 seconds. Here are the picture of its:

http://i.imgur.com/BoEzTJX.png

http://i.imgur.com/BoEzTJX.png

Also then, my USB stick is now have folders and files hidden, and the virus create a visible shortcut to my rundll32.exe which I must click it to access my USB content. I used a trick to get the file unhidden, but after a restart, or anytimes, the virus hid it again.
Then I make a full scan on avast, it found nothing. I formatted my USB stick, then now, my USB content is not being hidden anymore. But the popup of avast keep showing (picture above).
I attached a log of MBAM, 2 of FRST. The remaining of aswMBR I will upload it later, it’s scanning
Thank you

2

This is my aswMBR scan log

3

Recomended USB protection program www.mcshield.net/ it is free and install and forget

4

Thank you for your recommendation, I’m using it now
Anyone have an idea for my problem ?

5

Your friends computer and stick is most likely infected and also need a scrub here

It may take some hours before malware experts are online and assist you

6

Ensure that MCShield is set to show hidden folders

CAUTION : This fix is only valid for this specific machine, using it on another may break your computer

Open notepad and copy/paste the text in the quotebox below into it:

CreateRestorePoint: CHR StartupUrls: Default -> "hxxp://www1.delta-search.com/?affID=119716&tt=gc_&babsrc=HP_ss&mntrId=A4EF1C659DF1A8F1","hxxp://www.laban.vn/?utm_source=ssh&u=921f38e592d1cc56a8ea2244cda5408d30a1","hxxp://www.google.com/","hxxps://www.google.com/" 2013-08-22 11:56 - 2013-08-22 11:56 - 91500288 ___SH () C:\ProgramData\msbqkzj.exe Reg: reg delete HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f Reg: reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f RemoveProxy: CMD: netsh advfirewall reset CMD: netsh advfirewall set allprofiles state ON CMD: ipconfig /flushdns CMD: netsh winsock reset catalog CMD: netsh int ip reset c:\resetlog.txt CMD: ipconfig /release CMD: ipconfig /renew CMD: netsh int ipv4 reset CMD: netsh int ipv6 reset EmptyTemp: CMD: bitsadmin /reset /allusers

Save this as fixlist.txt, in the same location as FRST.exe

https://dl.dropboxusercontent.com/u/73555776/FRSTfix.JPG

Run FRST and press Fix
On completion a log will be generated please post that

7

This is the log of essexboy’s guide:

8

Seems like the popup has gone, i’ll watching it.
Thank you first, essexboy :smiley:

9

Any further problems ?

10

At the time I apply your fix until now, nothing weird happened :wink:

11

Subject to no further problems :slight_smile:

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems

Now the best part of the day ----- Your log now appears clean :thumbsup:

A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:

Remove tools

Download and run Delfix
Select the options as shown

https://dl.dropboxusercontent.com/u/73555776/delfix.JPG

: Keep Java Updated :

WARNING: Java is the #1 exploited program at this time. The Department of Homeland Security recommends that computer users disable Java
See this article

I would recommend that you completely uninstall Java unless you need it to run an important software.
In that instance I would recommend that you disable Java in your browsers until you need it for that software and then enable it. (See How to diasble Java in your web browser and How to unplug Java from the browser)

If you do need to keep Java then download JavaRa
Run the programme and select Remove Java Runtime. Uninstall all versions of Java present
Once done then run it again and select Update Java runtime > Download and install Latest version

https://dl.dropboxusercontent.com/u/73555776/javara.JPG

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

CryptoPrevent install this programme to lock down and prevent crypto ransome ware

https://dl.dropboxusercontent.com/u/73555776/CryptoPrevent.JPG

Malwarebytes

Update and run weekly to keep your system clean

Unchecky

Click on the link above to be taken to Unchecky.com
click the very large Download button.
click Save
Click Open folder
Right click on the Unchecky_setup and choose to Run as Administrator
Once open click the Install button.
Then click on Finish
Unchecky is now installed and will help you keep unwanted check boxes unchecked, this is a fire and forget programme :wink:

It is critical to have both a firewall and anti virus to protect your system and to keep them updated.

To learn more about how to protect yourself while on the internet read this little guide Best security practices Keep safe :wave:

12

Yesterday my computer worked perfectly, but tody when I plug my USB stick in, it completely freezes, I mean it can do nothing: I can’t access any drive, or any files or folders, it just loading.
However, when I unplug my USB, it back to normal. MCShield scanned this, and found it:


MCShield ::Anti-Malware Tool:: http://www.mcshield.net/

>>> v 3.0.5.28 / DB: 2015.10.2.1 / Windows 8.1 <<<


12/10/2015 9:53:52 SA > Drive J: - scan started (no label ~15072 MB, NTFS flash drive )...

>>> J:\autorun.inf > Action failed. Access was denied - blocked by your antivirus or active malware!!!


=> Suspicious files  : 0/1 renamed.

____________________________________________

::::: Scan duration: 30sec :::::::::::::::::
____________________________________________

I have this problem before, but after I format my USB stick (as mentioned in my #1), it back normal. A day later, it become infected

13

Essexboy will be back online in 8-10 hours

you may run and attach Fresh FRST logs

14

You mean I need to run FRST again ? With USB unplugged ?
Cause if I attach it in, the system will freeze …

15

Yes

16

Sorry for the late reply, I was in school …
Anyway, this is the FRST log

17

I would recommend that you fully format that USB or throw it away. The freeze is as MCShield is try to delete the malware

18

When the time I don’t have MCShield, this freeze was still happen, and in my USB there are some important documents that I can’t throw it away now.
Do you have any idea how to “fully format” it ? I tried format it but after few days, the symptom still occur (like I say in #1).
Supposing my computer is having virus that bind into USBs, so that even I throwing away this current and buying a new one, it’s still infect the other, so what can I do ?

19

Do you use the USB in other computers ?

20

Nope, I only use this on my computer. I think the virus infecting my computer through my friend USB