Spyware, Viruses, & Security forum

Question

Win32/Zbot.G

by Jbob32 / November 15, 2011 4:46 AM PST

Hi,

I was wondering if anyone might be able to assist me. I seem to have
picked up a Win32/Zbot.g virus on my Windows Vista system and was hoping
someone may be able to help me identify it's threat and assist with
it's removal?

This virus first appeared 2 days ago with multiple threat warnings
coming from my AVG antivirus. I've als had a couple of dialogue boxes
pop asking for admin rights to run a program I am unware of, these
continued to pop up even after I cancelled their dialogue box.

I have since run a virus scan on complete system (partitioned main drive
and second drive) which identified a huge list of infections some of
which AVG was able to heal some not. I am at work now but have left my
system scanning again, shutting down after scan. Even if someone is simply able to assist me in identifying the type and
threat and recommended course of action It would be greatly appreciated

Thanks
James

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All Answers

Collapse -
Answer
Please Try This...
by Grif Thomas Forum moderator / November 15, 2011 5:01 AM PST
In reply to: Win32/Zbot.G

If you can download the tools listed below on the problem computer, great, but you may need to use a separate, clean computer, download the tools, copy them to a DIFFERENT flash drive or CD, then transfer them to the infected computer.
_______________

Once that's done, then restart the computer into "Safe Mode with Networking" and use the instructions below. If you can't start in Safe Mode, then run all the tools while in "normal" Windows first, then run them in Safe Mode afterward.:

After downloading or transferring it to the problem machine, run the
following tool to help allow the removal programs below to run.
(courtesy of Grinler at BleepingComputer.com)There are 3 different
versions. If one of them won't run then try to run the other one. Be
patient.... as a black window should open, then close after finding all
the background programs.Vista and Win7 users need to right click and choose Run as AdminYou only need to get one of them to run, not all of them.

Rkill.exe
http://download.bleepingcomputer.com/grinler/rkill.exe

Rkill.com
http://download.bleepingcomputer.com/grinler/rkill.com

Rkill.scr
http://download.bleepingcomputer.com/grinler/rkill.scr
_____________________

IMMEDIATELY after running the "Rkill" tool above, run/install the Malwarebytes and
SuperAntispyware installer and update files from the links below which
you've also copied to a CD or flash drive, and transfered to the problem
machine. Do NOT restart the computer after running Rkill.Once
downloaded and before transferring Malwarebytes and SuperAntispyware to
the problem machine, rename the program installer "mbam-setup.exe" file
to something else like "Gogetum.exe", then copy the installer file and
the update file to a CD or flash drive.. Transfer the file to the
problem machine, then install the "Gogetum.exe" file, then run the
update to get the program current.. After that, run a full system scan
and delete anything it finds.

Malwarebytes Installer Download Link (Clicking on the links below will immediately start the download dialogue window.)
http://www.besttechie.net/tools/mbam-setup.exe

Malwarebytes Manual Updater link
http://data.mbamupdates.com/tools/mbam-rules.exe

Next, install and run a full system scan with the SuperAntispyware program
and the manual updater from the links below. As before, you may need to
rename the installer file to get the program to install.:

SuperAntispyware
http://www.superantispyware.com/SuperAntispyware

Manual Update
rhttp://www.superantispyware.com/definitions.html
____________


And after that, if everything's fine by you can't connect to the internet,
then follow the procedures below to check your network "proxy" settings
again.Open Internet Explorer and go to Tools-Internet
Options-Connection Tab. Click on the LAN settings button. IF there is a
check mark next to "Use a proxy server for your LAN", uncheck it. Click
OK. Then OK, again.
__________________

Hope this helps.

Grif

Collapse -
Answer
I see that you already posted on the AVG
by roddy32 / November 15, 2011 5:23 AM PST
In reply to: Win32/Zbot.G
Collapse -
Win32/Zbot.G
by Jbob32 / November 15, 2011 5:20 PM PST

Cheers for your response Grif, I tried this last night in safe mode. Malware bytes found 2 instances of 'Ramnit' which I asked it to remove and SuperAntiwspyware found 4 Trojans. I haven't had time to re-scan the machine yet but it seems to be running ok. Some of my programs won't work but I think that is because my AVG has disabled them as they were infected but the machine boots up fine and i'm no longer getting any threat warning messages.

Is there any way I can be 100% certain that the machine is now clean. If I do a re-scan as above and nothing is found am I safe to assume the virus has gone?

Cheers
James

Collapse -
I Generally Do This...
by Grif Thomas Forum moderator / November 16, 2011 2:41 AM PST
In reply to: Win32/Zbot.G

After running the scans with every tool I have, I restart the computer and run the scans again.. I continue to run the scans until nothing is detected after a restart.

Yep, it takes a while but it lets you know if there's a persistent threat which the tools aren't removing.

Hope this helps.

Grif

Collapse -
Important
by ninaforest / November 16, 2011 10:34 PM PST
In reply to: Win32/Zbot.G

Hey James, you can continue scanning the PC until you see no threats found in these scans. But I will strongly recommend you to change ALL your online passwords (preferably from another home PC) and to keep an eye on your card statements in the next 1-2 months. Zbot is a bad banking trojan and there is a slight chance (I hope I`m wrong) that some of your financial data is leaked to the bad guys.

Regards

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