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GrpConv Trojan


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#1 bjk360

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Posted 26 March 2012 - 10:18 PM

Greetings,

Recently I clicked on a picture of a cd cover on the net and Avast immediately popped up and said I had a possible virus and them immediately shut down. When I restarted Avast it did not indicate anything. I then decided to restart the computer in safe mode and check there to see if I could find anything. I don;t normally use Internet Explorer and I noticed that IE tried to start on its own so I immediately stopped it before it could really start. Here is the short version of what I did and what I found:


(1) Avast indicated that I had a virus and then immediately shut down on its own

(2) Rebooted to safe mode

(3) Ran Rkill

Here is what it found:

Processes terminated by Rkill or while it was running:

C:\Windows\SysWOW64\rundll32.exe

Rkill completed on 03/26/2012 at 14:03:18.


(4) Ran TDSKiller - Nothing found

(5) Malware Bytes - Full Scan in safe mode

found the following:
Registry Values Detected: 1
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce|GrpConv (Trojan.Agent.Gen)
-> Data: grpconv -o -> No action taken.


Clicked 'remove selected'

(6) Ran Superantispyware quick scan - Didn't find anything

(7) Restarted computer as Malware Bytes asked

(8) My Avast trial has expired

(9) When I run MWB in regular mode it doesn't detect anything

I have repeated the previous steps a few times and it appears that somehow I am not effective in my actions. What would you recommend I do from this point? All help is greatly appreciated.

Best Wishes,
B

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#2 TheShooter93

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Posted 26 March 2012 - 11:50 PM

Hi,

After performing these scans, enter the results in your next post and also update me on the status of the PC.

Note: You may have to perform some or all of the following in Safe Mode With Networking, depending on if you have internet access while in the normal Windows environment.

================================================================================

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.

================================================================================

Please download and scan with SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
    For instructions with screenshots, please refer to the How to use SUPERAntiSpyware to scan and remove malware from your computer Guide.
  • 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 other options as they are set):
    • 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 "Select Scan Type" check the box for Complete Scan.
  • If your computer is badly infected, be sure to check the box next to Enable Rescue Scan (Highly Infected Systems ONLY).
  • Click the Scan your computer... button.
  • 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 scan log after reboot, launch SUPERAntiSpyware again.
  • Click the View Scan Logs button at the bottom.
  • This will open the Scanner Logs Window.
  • Click on the log to highlight it and then click on View Selected Log to open it.
  • Copy and paste the scan log results in your next reply.
-- Some types of malware will disable security tools. If SUPERAntiSpyware will not install, please refer to these instructions for using the SUPERAntiSpyware Installer. If SUPERAntiSpyware is already installed but will not run, then follow the instructions for using RUNSAS.EXE to launch the program.
================================================================================

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.

    Posted Image
  • GMER will open to the Rootkit/Malware tab and perform an automatic quick 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
.

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#3 bjk360

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Posted 27 March 2012 - 09:49 AM

Greetings,

I am working on the first 2 items in the list. I had read that GMER does not work on 64bit systems. I have that version of Windows 7. Should I attempt it anyway?

Best Wishes,
B

#4 TheShooter93

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Posted 27 March 2012 - 11:44 AM

Yes, you should still run GMER.

I'll be waiting for the logs. :thumbup2:

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#5 bjk360

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Posted 27 March 2012 - 02:23 PM

Greetings,

Here is the information that I have collected and also a list of what I did. I currently have SuperAntiSpyware installed but it is the free version. Avast is also installed but the trial version has expired (yesterday).

(1) Ran security check
(2) Ran SuperAntiSpyware with the boxes checked as requested. It found 2 tracking cookies but nothing else and it therefore it did not request a reboot.
(3) Ran GMER. Log is posted below


Security Check Information:

Results of screen317's Security Check version 0.99.32
Windows 7 x64 (UAC is enabled)
Internet Explorer 9
``````````````````````````````
Antivirus/Firewall Check:

Windows Firewall Enabled!
avast! Free Antivirus
ESET Online Scanner v3
iolo technologies' System Mechanic
WMI entry may not exist for antivirus; attempting automatic update.
```````````````````````````````
Anti-malware/Other Utilities Check:

Secunia PSI (3.0.0.0004)
Adobe Reader X (10.1.2)
Mozilla Firefox (11.0.)
````````````````````````````````
Process Check:
objlist.exe by Laurent

AVAST Software Avast AvastSvc.exe
AVAST Software Avast AvastUI.exe
iolo Common Lib ioloServiceManager.exe
iolo System Mechanic SystemGuardAlerter.exe
``````````End of Log````````````


SuperAntiSpyware Log:[/b][/b]

SUPERAntiSpyware Scan Log

Generated 03/27/2012 at 12:59 PM

Application Version : 5.0.1146

Core Rules Database Version : 8383
Trace Rules Database Version: 6195

Scan type : Complete Scan
Total Scan Time : 02:45:18

Operating System Information
Windows 7 Home Premium 64-bit, Service Pack 1 (Build 6.01.7601)
UAC On - Limited User

Memory items scanned : 522
Memory threats detected : 0
Registry items scanned : 64344
Registry threats detected : 0
File items scanned : 268158
File threats detected : 2

Adware.Tracking Cookie
.solvemedia.com [ C:\USERS\BRIAN\APPDATA\ROAMING\MOZILLA\FIREFOX\PROFILES\OER39LM1.DEFAULT\COOKIES.SQLITE ]
.solvemedia.com [ C:\USERS\BRIAN\APPDATA\ROAMING\MOZILLA\FIREFOX\PROFILES\OER39LM1.DEFAULT\COOKIES.SQLITE ]

GMER LOG:

GMER 1.0.15.15641 - http://www.gmer.net
Rootkit scan 2012-03-27 14:17:16
Windows 6.1.7601 Service Pack 1
Running: 1vhbdsgz.exe


---- Files - GMER 1.0.15 ----

File C:\avast! sandbox 0 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000 0 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage 0 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\C 0 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\C\Windows 0 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\C\Windows\Prefetch 0 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\C\Windows\Prefetch\CMD.EXE-AC113AA8.pf 40224 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\C\Windows\Prefetch\CONHOST.EXE-1F3E9D7E.pf 19346 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\C\Windows\Prefetch\IEXPLORE.EXE-0CECD92D.pf 12516 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\C\Windows\Prefetch\IEXPLORE.EXE-8F1B6CBC.pf 14732 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\C\Windows\Prefetch\PEV.3XE-82BE176E.pf 29098 bytes
File C:\avast! sandbox\S-1-5-21-64775556-106322601-1195100551-1000\webStorage\snx_fs.dat 1006 bytes
File C:\avast! sandbox\snx_rhive 262144 bytes
File C:\avast! sandbox\snx_rhive.LOG1 37888 bytes
File C:\avast! sandbox\snx_rhive.LOG2 0 bytes
File C:\avast! sandbox\snx_rhive{def1a1fc-5f08-11e1-92e2-00235a44401f}.TM.blf 65536 bytes
File C:\avast! sandbox\snx_rhive{def1a1fc-5f08-11e1-92e2-00235a44401f}.TMContainer00000000000000000001.regtrans-ms 524288 bytes
File C:\avast! sandbox\snx_rhive{def1a1fc-5f08-11e1-92e2-00235a44401f}.TMContainer00000000000000000002.regtrans-ms 524288 bytes
File C:\avast! sandbox\snx_rhive{def1a202-5f08-11e1-92e2-00235a44401f}.TM.blf 65536 bytes
File C:\avast! sandbox\snx_rhive{def1a202-5f08-11e1-92e2-00235a44401f}.TMContainer00000000000000000001.regtrans-ms 524288 bytes
File C:\avast! sandbox\snx_rhive{def1a202-5f08-11e1-92e2-00235a44401f}.TMContainer00000000000000000002.regtrans-ms 524288 bytes

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

As of this moment IE is not trying to open on it's own. I will reboot and see if it does it again. Please let me know what you would advise from here.

Best Wishes,
B

#6 TheShooter93

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Posted 27 March 2012 - 03:45 PM

Are you still experiencing symptoms of malware?

CCNA R&SCCNA Security | Network+  |  B.S. - Information Technology | Cyber Security Engineer

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#7 bjk360

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Posted 28 March 2012 - 12:09 AM

Greetings,

I ran a full scan with MWB in safe mode and it didn't find anything. Also IE did not try to open itself again. So I then rebooted and when I clicked on Firefox, IE tried to open on its own. I ran MWB quick scan but found nothing. Something is making IE open on its own but if it is malware, it's not being detected and it seems to happen here and there rather than be constant. What do you think it might be? Thanks again for all your help.

Best Wishes,
B

#8 TheShooter93

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Posted 28 March 2012 - 12:37 AM

Please follow the instructions in ==>This Guide<== starting at Step 6. If you cannot complete a step, skip it and continue.

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

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.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.

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