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Hello Nat2000 and welcome to Malwarebytes! :welcome:

I apologize for the delay.

I am D-FRED-BROWN and I will be helping you. :)

Please print or save this topic: it will make it easier for you to follow the instructions and complete all of the necessary steps.

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Next,

Please download to your Desktop:

  • TDSSKiller.zip from here and extract it (right click on it => "Extract here").

>>> TDSSKiller: Double-click on TDSSKiller.exe to run the application.

  • Click on the Start Scan button and wait for the scan and disinfection process to be over.
  • If an infected file is detected, the default action will be Cure, click on Continue tdsskiller2.png
  • If a suspicious file is detected, the default action will be Skip, click on Continue tdsskiller3.png
  • If you are asked to reboot the computer to complete the process, click on the Reboot Now button. A report will be automatically saved at the root of the System drive ((usually C:\) in the form of "TDSSKiller.[Version]_[Date]_[Time]_log.txt" (for example, C:\TDSSKiller.2.2.0_20.12.2009_15.31.43_log.txt). Please copy and paste the contents of that file here.
  • If no reboot is required, click on Report. A log file will appear. Please copy and paste the contents of that file in your next reply.

In your next reply, please include the following (you may need to use two posts to get it all in):

  • TDSSKiller_log.txt
how the PC is running now?
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Please print out these instructions or copy them to a Notepad file for an easier reading and download MBRCheck by a_d_13 to your Desktop from one of these locations:
http://ad13.geekstogo.com/MBRCheck.exe
http://download.bleepingcomputer.com/rootrepeal/MBRCheck.exe
http://www.kernelmode.info/MBRCheck.exe
Close all opened programs/ windows and double-click on MBRCheck.exe.
It will produce a log file saved automatically on your Desktop as "MBRCheck_[Date]_[Time].txt".
Press the "Enter" key to close the MBRCheck window and post the contents of the log file.
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Please do the following:
  • Please download aswMBR.exe from here and save it to your Desktop.
  • Double click aswMBR.exe to start the tool. (Vista - Win 7 Rt click to run as Administrator)
  • Click Scan
  • Upon completion of the scan, click Save log and save it to your Desktop, and post that log in your next reply. Do NOT attempt any Fix at this time!
  • This will also create a file on your Desktop named MBR.dat. Right click that file and select Send To->Compressed (zipped) folder. Attach that zipped folder in your next reply as well.

NOTE: The Avast! scan is not necessary ;).

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Please download ComboFix.exe. Please visit this webpage for download links, and instructions for running the tool:

http://www.bleepingcomputer.com/combofix/how-to-use-combofix

***IMPORTANT: save ComboFix to your Desktop***

* Ensure you have disabled all anti virus and anti malware programs so they do not interfere with the running of ComboFix.

Please go here to see a list of programs that should be disabled.

**Note: Do not mouseclick ComboFix's window while it's running. That may cause it to stall**

Please include the C:\ComboFix.txt in your next reply for further review.

Also, please let me know if any problems still remain.

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Please download Security Check by screen317 from here or here.

  • Save it to your Desktop.
  • Double click SecurityCheck.exe and follow the onscreen instructions inside of the black box.
  • A Notepad document should open automatically called checkup.txt; please post the contents of that document.

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In your next reply, please include:

  • TDSSKiller report
  • MBRCheck report
  • aswMBR log & MBR.dat zip file
  • C:\ComboFix.txt
  • checkup.txt

How is your computer running now?

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My sincerest apologies for the delay,

Since you've done a System Restore, please go ahead and re-run the tools from my first post and post their results here for me to see.

This infection is known to mess with your internet connection, but don't worry- its an easy fix for us to complete ;)

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Thanks for your reply. No worries about the delay. :)

Cheers :).

One thing I'd like to know: after running those programs, how is your system running now? Any changes in performance? Please let me know ;).

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There's some files I'd like a closer look at. We'll have to do a manual online scan for each of them.

Please go to http://www.virustotal.com/ , click on Browse, and upload the following file/s for analysis: You will only be able to have one file scanned at a time.

c:\windows\system32\EncDec.dll

c:\windows\SysWow64\EncDec.dll

c:\windows\system32\csrsrv.dll

c:\windows\system32\tzres.dll

c:\windows\SysWow64\tzres.dll

Then click Submit. Allow the file to be scanned, and then please copy/paste the results here for me to see.

If Jotti is busy, please go to http://virusscan.jotti.org.

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Next,

Please do the following:

1. Close any open browsers.

2. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.

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

KILLALL::

DirLook::

c:\users\A\AppData\Roaming\Microsoft\

Save this as CFScript.txt, in the same location as ComboFix.exe

CFScriptB-4.gif

Refering to the picture above, drag CFScript into ComboFix.exe

When finished, it shall produce a log for you at C:\ComboFix.txt which I shall require in your next reply.

Note: Do not mouseclick combofix's window whilst it's running. That may cause it to stall.

Please include the newly-created C:\ComboFix.txt in your next reply, and let me know how things are running now ;)

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Thanks!

The system is running well but there was no problem with its performance.The only problem was the redirections to random sites, including fraudulent/damaging ones (one locked up my system and I had to do a system restore in safe mode to recover it). I don't know if the redirections are still happening as I haven't done much surfing since the scans.

Here are the VirusTotal scan results:

c:\windows\system32\EncDec.dll

File name: EncDec.dll

Submission date: 2012-01-04 09:38:17 (UTC)

Current status: finished

Result: 0/ 43 (0.0%)

c:\windows\SysWow64\EncDec.dll

File name: EncDec.dll

Submission date: 2012-01-04 09:43:28 (UTC)

Current status: finished

Result: 0/ 43 (0.0%)

c:\windows\system32\csrsrv.dll

File not found

c:\windows\system32\tzres.dll

File name: tzres.dll

Submission date: 2012-01-04 09:48:54 (UTC)

Current status: finished

Result: 0/ 43 (0.0%)

c:\windows\SysWow64\tzres.dll

File name: tzres.dll

Submission date: 2012-01-04 09:51:29 (UTC)

Current status: finished

Result: 0/ 43 (0.0%)

I am also attaching the latest ComboFix log. I had to run ComboFix twice because it did not produce a log the first time.

Best wishes

Nat

ComboFix.txt

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Looking good! :)

The system is running well but there was no problem with its performance.The only problem was the redirections to random sites, including fraudulent/damaging ones (one locked up my system and I had to do a system restore in safe mode to recover it). I don't know if the redirections are still happening as I haven't done much surfing since the scans.

Let me know if you encounter any. ;)

Before the next step, let's run an online scan to see if there's anything we may have missed:

Please run a free online scan with the ESET Online Scanner

Note: You will need to use Internet Explorer for this scan.

  1. Tick the box next to YES, I accept the Terms of Use.
  2. Click Start
  3. When asked, allow the ActiveX control to install
  4. Click Start
  5. Make sure that the options Remove found threats is Unchecked and the option Scan unwanted applications is checked
  6. Click Scan
    Wait for the scan to finish
  7. Use Notepad to open the logfile located at C:\Program Files\EsetOnlineScanner\log.txt
  8. Copy and paste that log as a reply to this topic

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No worries, we can uninstall it manually ;):

Please download and install Revo Uninstaller (Freeware) from here. Then please run Revo Uninstaller and select MegauploadToolbar.

Please click Uninstall icon to uninstall the selected program.

2ev563d.gif

Please choose Advanced.

aubbd2.gif

Then click Next and follow the prompts.

Please click Select All (1.) and Delete (2.)

2hdphqf.gif

to delete all registry items, folders and files listed by Revo.

If asked to restart the computer, please do so immediately.

Let me know how it goes.

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Glad to hear the redirections are gone! Your logs appear to be clean ;).

Before we move on to the next step, please update the following programs. (Using outdated applications leaves you extremely vulnerable to getting infected again.)

----------

Java is out of date and older versions contain vulnerabilities. Please update to the newest version.

Download the newest version from here http://www.oracle.com/technetwork/java/javase/downloads/index.html.

It's important to remove older versions of Java since it does not do so automatically and old versions still leave you vulnerable.

Go to Start > Control Panel and open Add or Remove Programs.

Search in the list for all previous installed versions of Java. (J2SE Runtime Environment).

They will have this icon next to them: javaicon.gif

Select each in turn and click Remove.

Once old versions are gone, please install the newest version.

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You're using an old version of Adobe Acrobat Reader, this can leave your PC open to vulnerabilities, you can update it here (uninstall version 7.0 first):

Adobe Reader X

Note: I suggest you uncheck an optional, third-party download (eg. McAfee Security Scan Plus).

After successfully installing Adobe Reader X, see this article on how to make this program more secure: Adobe Reader X secures itself by playing in the sandbox.

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I see you have User Accounts Control (UAC) disabled.

This is an important security feature which helps prevent malware and other unwanted software from being installed on your computer.

I strongly suggest you keep it enabled. See this link for instructions on how to enable it: http://windows.microsoft.com/en-US/windows-vista/Turn-User-Account-Control-on-or-off

----------

Please let me know how the updates went, as failed updates may indicate additional malware ;).

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Glad to hear the updates went well! :D

I will now provide you with some suggestions for security software, but first, let's remove ComboFix ;):

The following will implement some cleanup procedures as well as reset System Restore points:

Click Start > Run and copy/paste the following bolded text into the Run box and click OK:

ComboFix /Uninstall

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Please consider using these ideas to help secure your computer. While there is no way to guarantee safety when you use a computer, these steps will make it much less likely that you will need to endure another infection. While we really like to help people, we would rather help you protect yourself so that you won't need that help in the future. :)

Please either enable Automatic Updates under Start -> Control Panel -> Automatic Updates or get into the habit of checking Windows Update regularly. They usually have security updates every month. You can set Windows to notify you of Updates so that you can choose, but only do this if you believe you are able to understand which ones are needed. This is a crucial security measure.

It is really dangerous to go online without an antivirus. Without one, you are extremely likely to get infected and the consequences could be even worse next time. All of the following are excellent free antiviruses. Be sure to only install one.

avast!.

AntiVir

AVG

Please consider installing and running some of the following programs; they are either free or have free versions of commercial programs:

Spybot-Search & Destroy

A tutorial on using Spybot to remove spyware from your computer may be found here. Please also remember to enable Spybot's "Immunize" and "TeaTimer" features if you don't have the resident part of another anti-spyware program running.

SpywareBlaster

A tutorial on using SpywareBlaster to prevent malware from ever installing on your computer may be found here.

SpywareGuard

A tutorial on using SpywareGuard for real-time protection against spyware and hijackers may be found here.

Please, consider maintaining a firewall with HIPS (Host Intrusion Prevention Systems). Firewalls are extremely important and are the first part of your computer's defense. HIPS stops malware by monitoring its behavior and it's very important, too.

A firewall is a software program or piece of hardware that helps screen out hackers, viruses, and worms that try to reach your computer over the Internet.

If you are using the Windows Firewall please note that it doesn't monitor or block outbound traffic and is therefore less effective than other free alternatives.

These firewalls are good and do have free versions available

A tutorial on understanding and using firewalls may be found here.

If you use Internet Explorer, it is a good idea to use IE-Spyad for ZonedOut which provides protections against malicious websites. (Requires 2 downloads)

Please keep these programs up-to-date and run them whenever you suspect a problem to prevent malware problems. A number of programs have resident protection and it is a good idea to run the resident protection of one of each type of program to maintain protection. However, it is important to run only one resident program of each type since they can conflict and become less effective. That means only one antivirus, firewall and scanning anti-spyware program at a time. Passive protectors, like SpywareBlaster and IE-Spyad can be run with any of them.

Note that there are a lot of rogue programs out there that want to scare you into giving them your money and some malware actually claims to be security programs. If you get a popup for a security program that you did not install yourself, do NOT click on it and ask for help immediately. It is very important to run an antivirus and firewall, but you can't always rely on reviews and ads for information. Ask in a security forum that you trust if you are not sure. If you are unsure and looking for anti-spyware programs, you can find out if it is a rogue here:

http://www.spywarewarrior.com/rogue_anti-spyware.htm

A similar category of programs is now called "scareware." Scareware programs are active infections that will pop-up on your computer and tell you that you are infected. If you look closely, it will usually have a name that looks like it might be legitimate, but it is NOT one of the programs you installed. It tells you to click and install it right away. If you click on any part of it, including the 'X' to close it, you may actually help it infect your computer further. Keeping protection updated and running resident protection can help prevent these infections. If it happens anyway, get offline as quickly as you can. Pull the internet connection cable or shut down the computer if you have to. Contact someone to help by using another computer if possible. These programs are also sometimes called 'rogues', but they are different than the older version of rogues mentioned above.

Please consider using an alternate browser. Mozilla's Firefox browser is a very good alternative. In addition to being generally more secure than Internet Explorer, it has a very good built-in popup blocker and add-ons, like NoScripts, can make it even more secure. Opera is another good option.

If you are interested, Firefox may be downloaded from here

Opera is available here: http://www.opera.com/download/

For much more useful information, please also read Tony Klein's excellent article: How did I get infected in the first place

Hopefully these steps will help to keep you error free. If you run into more difficulty, we will certainly do what we can to help. :)

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Glad we could help. :)

If you need this topic reopened, please send a Private Message to any one of the moderating team members. Please include a link to this thread with your request. This applies only to the originator of this thread.

Other members who need assistance please start your own topic in a new thread. Thanks!

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