W32/Xor.encoded.A

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W32/Xor.encoded.A I got this, can anyone help me remove it.

#1 DavSabo

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Posted 02 June 2011 - 06:03 PM

I recently had the fake MS security malware/virus pop up. I did some research having received a similar one awhile ago and it currently seems to be latent. However I can't seem to remove it permanently. I did an online Panda Scan and it told me the location and I took as screen shot of that-stating it is in an microsoftantimalware folder. However I can't delete the entire folder.
Any help would or direction to the right place would be greatly appreciated
Thanks
Dav

#2 cryptodan

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Posted 06 June 2011 - 10:06 PM

Can you post the image of the screenshot?

My work schedule is as follows: Mon and Tues 1800 to 0600, Friday - Sunday 1800EST to 0600, and Wednesday to Thursday 1800est to 0600. So if I do not respond right away I am at work.
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#3 DavSabo

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Posted 09 June 2011 - 08:46 AM

Sure let me upload it to a hosting site and I'll post it up.

okay here is the results from panda scan
Posted Image

Here is the portion of it I was able to delete that is sitting in my Recycle bin
Posted Image

Thanks for the help

This post has been edited by DavSabo: 09 June 2011 - 08:53 AM

#4 cryptodan

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Posted 09 June 2011 - 01:23 PM

Hello,

And welcome to BleepingComputer.com, before we can assist you with your question of: Am I infected? You will need to perform the following tasks and post the logs of each if you can.

Malwarebytes Anti-Malware

Quote

NOTEMalwarebytes is now offering a free trial of their program, if you want to accept it you will need to enter some billing information, so that at the end of the trial you would be charged the cost of the product. Please decline this offer, if you are unable to provide billing information. If you want to try it out, then provide the billing information.

Please download Malwarebytes Anti-Malware and save it to your desktop.

Download Link 1

Download Link 2

MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.

Make sure you are connected to the Internet.
Double-click on mbam-setup.exe to install the application.
For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
When the installation begins, follow the prompts and do not make any changes to default settings.
When installation has finished, make sure you leave both of these checked:
- Update Malwarebytes' Anti-Malware
- Launch Malwarebytes' Anti-Malware
Then click Finish.

MBAM will automatically start and you will be asked to update the program before performing a scan.

If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.

On the Scanner tab:

Make sure the "Perform Full Scan" option is selected.
Then click on the Scan button.
If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
Click OK to close the message box and continue with the removal process.

Back at the main Scanner screen:

Click on the Show Results button to see a list of any malware that was found.
Make sure that everything is checked, and click Remove Selected.
When removal is completed, a log report will open in Notepad.
The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
Exit MBAM when done.

Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

SUPERAntiSpyware:

Quote

Please download and scan with SUPERAntiSpyware Free

Double-click SUPERAntiSypware.exe and use the default settings for installation.
An icon will be created on your desktop. Double-click that icon to launch the program.
If it will not start, go to Start > All Prgrams > SUPERAntiSpyware and click on Alternate Start.
If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
In the Main Menu, click the Preferences... button.
Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
Click the "Scanning Control" tab, and under Scanner Options, make sure the following are checked (leave all others unchecked):
- Close browsers before scanning.
- Scan for tracking cookies.
- Terminate memory threats before quarantining.
Click the "Close" button to leave the control center screen and exit the program.
Do not run a scan just yet.

Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with SUPERAntiSpyware as follows:

Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
On the left, make sure you check C:\Fixed Drive.
On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
Make sure everything has a checkmark next to it and click "Next".
A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
If asked if you want to reboot, click "Yes" and reboot normally.
To retrieve the removal information after reboot, launch SUPERAntispyware again.
- Click Preferences, then click the Statistics/Logs tab.
- Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
- If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
- Please copy and paste the Scan Log results in your next reply.
Click Close to exit the program.

If you have a problem downloading, installing or getting SAS to run, try downloading and using the SUPERAntiSpyware Portable Scanner instead. Save the randomly named file (i.e. SAS_1710895.COM) to a usb drive or CD and transfer to the infected computer. Then double-click on it to launch and scan. The file is randomly named to help keep malware from blocking the scanner.

Instructions:

Download and scan with SUPERAntiSpyware Free for Home Users

Double-click SUPERAntiSpyware.exe and use the default settings for installation.
An icon will be created on your desktop. Double-click that icon to launch the program.
If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
In the Main Menu, click the Preferences... button.
Click the Scanning Control tab.
Under Scanner Options make sure the following are checked (leave all others unchecked):
- Close browsers before scanning.
- Scan for tracking cookies.
- Terminate memory threats before quarantining.
Click the "Close" button to leave the control center screen.
Back on the main screen, under "Scan for Harmful Software" click Scan your computer.
On the left, make sure you check C:\Fixed Drive.
On the right, under "Complete Scan", choose Perform Complete Scan.
Click "Next" to start the scan. Please be patient while it scans your computer.
After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
Make sure everything has a checkmark next to it and click "Next".
A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
If asked if you want to reboot, click "Yes".
To retrieve the removal information after reboot, launch SUPERAntispyware again.
- Click Preferences, then click the Statistics/Logs tab.
- Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
- If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
- Please copy and paste the Scan Log results in your next reply.
Click Close to exit the program.

Now GMER

Quote

GMER does not work in 64bit Mode!!!!!!

Please download GMER from one of the following locations and save it to your desktop:

Main Mirror
This version will download a randomly named file (Recommended)
Zipped Mirror
This version will download a zip file you will need to extract first. If you use this mirror, please extract the zip file to your desktop.

Disconnect from the Internet and close all running programs.
Temporarily disable any real-time active protection so your security programs will not conflict with gmer's driver.
Double-click on the randomly named GMER file (i.e. n7gmo46c.exe) and allow the gmer.sys driver to load if asked.
Note: If you downloaded the zipped version, extract the file to its own folder such as C:\gmer and then double-click on gmer.exe.
GMER will open to the Rootkit/Malware tab and perform an automatic Full Scan when first run. (do not use the computer while the scan is in progress)
If you receive a WARNING!!! about rootkit activity and are asked to fully scan your system...click NO.
Now click the Scan button. If you see a rootkit warning window, click OK.
When the scan is finished, click the Save... button to save the scan results to your Desktop. Save the file as gmer.log.
Click the Copy button and paste the results into your next reply.
Exit GMER and be sure to re-enable your anti-virus, Firewall and any other security programs you had disabled.

-- If you encounter any problems, try running GMER in safe mode.
-- If GMER crashes or keeps resulting in a BSODs, uncheck Devices on the right side before scanning.

#5 DavSabo

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Group: Members
Posts: 8
Joined: 05-December 09

Posted 11 June 2011 - 03:07 PM

Thanks I'm doing the malware bytes scan right now. To clarify do you want me to scan my computer once with SuperAntispyware Free and then again with SuperAntiSpyware Free for home users?
Thanks for the help
Dav

#6 cryptodan

Bleepin Madman

Group: BC Advisor
Posts: 18,386
Joined: 08-September 08
Gender:Male
Location:Catonsville, Md

Posted 11 June 2011 - 09:28 PM

Just do the free scan with the SAS Free.

#7 DavSabo

New Member

Group: Members
Posts: 8
Joined: 05-December 09

Posted 12 June 2011 - 11:40 AM

Hello Cryptodan,
Thanks for the help here are the logs from the three programs you asked me to run:

Malwarebytes' Anti-Malware 1.51.0.1200
www.malwarebytes.org

Database version: 6837

Windows 5.1.2600 Service Pack 3
Internet Explorer 7.0.5730.13

6/11/2011 5:05:55 PM
mbam-log-2011-06-11 (17-05-55).txt

Scan type: Full scan (C:\|D:\|E:\|)
Objects scanned: 249529
Time elapsed: 59 minute(s), 3 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: 0

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:
(No malicious items detected)

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 06/12/2011 at 03:18 AM

Application Version : 4.54.1000

Core Rules Database Version : 7179
Trace Rules Database Version: 4991

Scan type : Complete Scan
Total Scan Time : 01:35:12

Memory items scanned : 272
Memory threats detected : 0
Registry items scanned : 6907
Registry threats detected : 0
File items scanned : 103492
File threats detected : 9

Adware.Tracking Cookie
media.mtvnservices.com [ C:\Documents and Settings\DL\Application Data\Macromedia\Flash Player\#SharedObjects\NK254LKP ]
media.whosay.com [ C:\Documents and Settings\DL\Application Data\Macromedia\Flash Player\#SharedObjects\NK254LKP ]
s0.2mdn.net [ C:\Documents and Settings\DL\Application Data\Macromedia\Flash Player\#SharedObjects\NK254LKP ]
secure-us.imrworldwide.com [ C:\Documents and Settings\DL\Application Data\Macromedia\Flash Player\#SharedObjects\NK254LKP ]
www.googleadservices.com [ C:\Documents and Settings\DL\Application Data\Mozilla\Firefox\Profiles\5jhgl06v.default\cookies.sqlite ]
media.comics.ign.com [ C:\Documents and Settings\DL\Application Data\Mozilla\Firefox\Profiles\5jhgl06v.default\cookies.sqlite ]
media.comics.ign.com [ C:\Documents and Settings\DL\Application Data\Mozilla\Firefox\Profiles\5jhgl06v.default\cookies.sqlite ]
media.comics.ign.com [ C:\Documents and Settings\DL\Application Data\Mozilla\Firefox\Profiles\5jhgl06v.default\cookies.sqlite ]
.richmedia.yahoo.com [ C:\Documents and Settings\DL\Application Data\Mozilla\Firefox\Profiles\5jhgl06v.default\cookies.sqlite ]

GMER 1.0.15.15640 - http://www.gmer.net
Rootkit scan 2011-06-12 12:31:50
Windows 5.1.2600 Service Pack 3 Harddisk0\DR0 -> \Device\Ide\IAAStorageDevice-0 WDC_WD25 rev.12.0
Running: ys4f1lnw.exe; Driver: C:\DOCUME~1\DL\LOCALS~1\Temp\ufxiqfod.sys

---- Kernel code sections - GMER 1.0.15 ----

.text C:\WINDOWS\system32\DRIVERS\nv4_mini.sys section is writeable [0xF5C25360, 0x307AC7, 0xE8000020]

---- User code sections - GMER 1.0.15 ----

.text C:\WINDOWS\system32\SearchIndexer.exe[984] kernel32.dll!WriteFile 7C810E27 7 Bytes JMP 00585C0C C:\WINDOWS\system32\MSSRCH.DLL (mssrch.dll/Microsoft Corporation)

---- Devices - GMER 1.0.15 ----

Device \FileSystem\Cdfs \Cdfs DLAIFS_M.SYS (Drive Letter Access Component/Sonic Solutions)

---- Registry - GMER 1.0.15 ----

Reg HKLM\SOFTWARE\Classes\CLSID\{BEB3C0C7-B648-4257-96D9-B5D024816E27}\Version
Reg HKLM\SOFTWARE\Classes\CLSID\{BEB3C0C7-B648-4257-96D9-B5D024816E27}\Version@Version 0x9D 0x07 0xB8 0x64 ...

---- EOF - GMER 1.0.15 ----

#8 cryptodan

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Group: BC Advisor
Posts: 18,386
Joined: 08-September 08
Gender:Male
Location:Catonsville, Md

Posted 12 June 2011 - 03:05 PM

Please follow the instructions in ==>This Guide<==.

Once the proper logs are created, then make a NEW TOPIC and post it ==>HERE<== Please include the link to this topic in your new topic and a description of your computer issues and what you have done to resolve them.

If you can produce at least some of the logs, then please create the new topic and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the topic and explain that you followed the Prep. Guide, were unable to create the logs, and describe what happens when you try to create the logs.

Once you have created the new topic, please reply back here with a link to the new topic.