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Avg Keeps Finding Trojan Horse Proxy.vfl


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#1 Terabyte Computer

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Posted 23 October 2007 - 04:49 PM

I am running Windows XP w/ SP2 and all updates applied. When I connect to the Internet (dialup) and start browsing, my AVG antivirus pops up the following alert:

Threat detected while opening file: c:\windows\system32\312987521d.exe Trojan Horse Proxy.VFL

The filename is different each time, but is always a numeric filename. I select 'Heal' and it does, but the next time I'm on the Internet, it pops up again.

I've run Windows Defender and CCleaner, and tried to download Stinger, but it failed for some reason. I'll continue to try to get that installed. I ran HijackThis and have the following log file. I would be grateful for any help you can provide. This is driving me nuts.

Thanks in advance.

***************************************

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 5:28:40 PM, on 10/23/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\windows\system\hpsysdrv.exe
C:\Program Files\WildTangent\DDC\DDCManager\DDCMan.exe
C:\WINDOWS\System32\hkcmd.exe
C:\WINDOWS\system32\ps2.exe
C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb04.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\Program Files\Logitech\iTouch\iTouch.exe
C:\WINDOWS\wt\updater\wcmdmgr.exe
C:\Program Files\Logitech\MouseWare\system\em_exec.exe
C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\hp center\137903\Shadow\ShadowBar.exe
C:\Program Files\hp center\137903\Program\BackWeb-137903.exe
C:\Program Files\Windows Defender\MsMpEng.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\wuauclt.exe
c:\Program Files\Microsoft Money\System\urlmap.exe
C:\Download\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://us4.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://srch-us4.hpwis.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://us4.hpwis.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://srch-us4.hpwis.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://srch-us4.hpwis.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://us4.hpwis.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://srch-us4.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://us4.hpwis.com/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O2 - BHO: (no name) - {FDD3B846-8D59-4ffb-8758-209B6AD74ACC} - c:\Program Files\Microsoft Money\System\mnyviewer.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [DDCM] "C:\Program Files\WildTangent\DDC\DDCManager\DDCMan.exe" -Background
O4 - HKLM\..\Run: [DDCActiveMenu] "C:\Program Files\WildTangent\DDC\ActiveMenu\DDCActiveMenu.exe" -boot
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE NvQTwk,NvCplDaemon initialize
O4 - HKLM\..\Run: [S3TRAY2] S3tray2.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [PS2] C:\WINDOWS\system32\ps2.exe
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb04.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [zBrowser Launcher] C:\Program Files\Logitech\iTouch\iTouch.exe
O4 - HKLM\..\Run: [Logitech Utility] Logi_MwX.Exe
O4 - HKLM\..\Run: [wcmdmgr] C:\WINDOWS\wt\updater\wcmdmgrl.exe -launch
O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [LDM] C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKUS\S-1-5-19\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'Default user')
O4 - S-1-5-18 Startup: AutoPlay.exe (User 'SYSTEM')
O4 - .DEFAULT Startup: AutoPlay.exe (User 'Default user')
O4 - .DEFAULT User Startup: AutoPlay.exe (User 'Default user')
O4 - Global Startup: hp center UI.lnk = C:\Program Files\hp center\137903\Shadow\ShadowBar.exe
O4 - Global Startup: hp center.lnk = C:\Program Files\hp center\137903\Program\BackWeb-137903.exe
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
O9 - Extra button: MoneySide - {E023F504-0C5A-4750-A1E7-A9046DEA8A21} - c:\Program Files\Microsoft Money\System\mnyviewer.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/windowsupd...b?1192805473435
O17 - HKLM\System\CCS\Services\Tcpip\..\{F2D0DEC3-58F6-4EC6-B748-6412D222DB9B}: NameServer = 63.246.206.29 64.80.224.125
O20 - Winlogon Notify: rpcc - C:\WINDOWS\System32\rpcc.dll
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe

--
End of file - 6900 bytes
--- If you're not living on the edge, your taking up too much space. ---

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#2 Guest_Cretemonster_*

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Posted 24 October 2007 - 04:21 PM

Hi Terabyte Computer and Welcome to the Bleeping Computer!

Download ComboFix from Here or Here to your Desktop.
  • Double click combofix.exe and follow the prompts.
  • When finished, it shall produce a log for you. Post that log and a HiJackthis log in your next reply
Note: Do not mouseclick combofix's window while its running. That may cause it to stall

#3 Terabyte Computer

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Posted 29 October 2007 - 01:41 PM

Thank you, Crete. I'll try to do that tomorrow night (I'm busy packing to move, lol) and I'll post the logs.
--- If you're not living on the edge, your taking up too much space. ---

#4 Terabyte Computer

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Posted 31 October 2007 - 06:16 AM

Well, the PC froze when someone was using it yesterday. After rebooting, it started through the HP Registration Wizard, as though Windows had just been installed from the restore CD's. I have to troubleshoot that now before I can run combofix. Hopefully all data has not been overwritten (although that would take care of my initial problem). If it is, I'll end up reformatting and starting over, just to be sure I have a clean system. It won't help me understand the initial problem, but will get this PC back into use.

I'll post an update, hopefully tomorrow.
--- If you're not living on the edge, your taking up too much space. ---

#5 Guest_Cretemonster_*

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Posted 01 November 2007 - 12:51 PM

Bummer,just had a friends wife hit the F10 key thinking it was System Restore and didnt realize they had used the recovery partition to restore the PC like it was the day it was bought.

Let me know what comes of it please.

#6 Terabyte Computer

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Posted 14 November 2007 - 08:15 AM

Sorry for the delay in getting back on this.

I finally was able to find time to finish recovering the PC from whatever caused it to go back to 'brand new' state. All data was still there, but some apps had to be reinstalled.

After installing/updating everything, AVG found the virus/trojan again. I remembered reading somewhere else about turning off System Restore (don't know why I didn't think of that earlier), so I did that, then ran a scan again. Looks like it's resolved. No virus found. It didn't appear that the virus was being detected in a System Restore file, but apparantly it was.

Thanks, Crete, for your assistance.
--- If you're not living on the edge, your taking up too much space. ---

#7 Guest_Cretemonster_*

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Posted 15 November 2007 - 04:52 PM

Im just glad you were able to save what you did and have managed to sort things out.

Here are some ideas,some are old so disregard those but there are some neat tools to look at and see if they make a nice addition.


Now that you are clean, please follow these simple steps in order to keep your computer clean and secure:

Windows, Internet Explorer and Microsoft Office Updates

Visit Microsoft's Windows Update Site frequently. This will ensure your computer has always the latest security updates available installed on your computer. If there are new updates to install, install them immediately, reboot your computer, and revisit the site until there are no more critical updates.

If you are running Microsoft Office, or any application of it, go to the Microsoft's Office Update site and make sure you have at least all the critical updates installed.

If you have trouble with Windows Update, you still can get all the Critical Updates, Security Fixes and Service Packs. Below are a few links to bookmark.

Microsoft Security Bulletins
http://www.microsoft.com/technet/security/current.aspx

Office downloads
http://office.microsoft.com/en-us/officeupdate/default.aspx

Download Center
http://www.microsoft.com/downloads/search.aspx

Microsoft Security Advisories
http://www.microsoft.com/technet/security/...ry/default.mspx

Recently Published
http://www.microsoft.com/technet/security/...nt/default.mspx

Make your Internet Explorer more secure
  • From within Internet Explorer click on the Tools menu and then click on Options.
  • Click on the Security tab
  • Click the Internet icon so it becomes highlighted.
  • Click on Default Level and click Ok
  • Click on the Custom Level button.
    • Change the Download signed ActiveX controls to Prompt
    • Change the Download unsigned ActiveX controls to Disable
    • Change the Initialise and script ActiveX controls not marked as safe to Disable
    • Change the Installation of desktop items to Prompt
    • Change the Launching programs and files in an IFRAME to Prompt
    • Change the Navigate sub-frames across different domains to Prompt
    • When all these settings have been made, click on the OK button.
    • If it prompts you as to whether or not you want to save the settings, press the Yes button.
  • Next press the Apply button and then the OK to exit the Internet Properties page.
Take the time to check out the following links

Resources for using Internet Explorer 6
http://support.microsoft.com/?kbid=867470

How to Configure Enhanced Security Features for Internet Explorer from Windows XP SP2
http://www.microsoft.com/technet/security/...xp/iesecxp.mspx

Microsoft Malicious Software Removal Tool
http://www.microsoft.com/security/malwarer...e/families.mspx

Keep your Sun Java up to date

Check out these topics for more information:
http://spywarewarrior.com/viewtopic.php?t=17910
http://spywarewarrior.com/viewtopic.php?t=17598

Free programs that may help you in keeping the PC clean
  • SpywareBlaster
    SpywareBlaster will add a large list of programs and sites into your Internet Explorer settings that will protect you from running and downloading known malicious programs.
    You can download SpywareBlaster here
    A tutorial can be found here
  • SpywareGuard
    It provides a degree of real-time protection solution against spyware that is a great addition to SpywareBlaster's protection method. An anti-virus program scans files before you open them and prevents execution if a virus is detected - SpywareGuard does the same thing, but for spyware. And you can easily have an anti-virus program running alongside SpywareGuard. It also features Download Protection and Browser Hijacking Protection.
    You can download SpywareGuard here
    A tutorial can be found here
  • IE-SPYAD
    IE-SPYAD puts over 5000 sites in your restricted zone, so you'll be protected when you visit innocent-looking sites that aren't actually innocent at all. It basically prevents any downloads, cookies, scripts from the sites listed, although you will still be able to connect to the sites.
    You can download IE-SPYAD here
    A tutorial can be found here
  • Hosts File
    A Hosts file replaces your current HOSTS file with one containing well known ad, spyware sites etc. Basically, this prevents your coputer from connecting to those sites by redirecting them to 127.0.0.1 which is your local computer.
    A tutorial tutorial can be found here
  • MVPS Hosts File
    You can download the MVPS Hosts File here
    Furthermore the website contains useful tips and links to other resources and utilities.
  • Bluetack's Hosts File and Hosts Manager
    Essentially based on the research made by Webhelper, Andrew Clover and Eric L. Howes, it contains most if not all the known spyware sites, sites responsible for hijacks, rogue apllications etc...
    Download Bluetack's Hosts file here
    Download Bluetack's HostsManager here
Free Spyware Detection and Removal Programs
  • Ad-Aware
    It scans for known spyware on your computer. These scans should be run at least once every two weeks.
    You can download Ad-Aware here
    A tutorial can be found here
  • Spybot - Search & Destroy
    It scans for spyware and other malicious programs. Spybot has preventitive tools that stop programs from even installing on your computer.
    You can download Spybot - S&D here
    A tutorial can be found here
Before adding any other Spyware Detection and Removal programs always check the Rogue Anti-Spyware List for programs known to be misleading, mistaken, or just outright "Foistware".
You will find the list here

AVG Anti-Spyware (formerly Ewido)

Realtime protection against these threats:
  • Hijackers and Spyware
    Secure surfing in the Internet without fear of annoying changes of the start page of your browser, tracking cookies and advertising bars.
  • Worms
    Nobody should receive e-mails in your name with malicious files in the appendix anymore.
  • Dialers
    Security against all kinds of dialers. No fear when receiving the next phone bill.
  • Trojans and Keyloggers
    No chance for thieves to steal your bank data and personal sensitive information by tapped Internet connections, remote controlled webcams or secret keyboard recordings.
Most of you will have already the trial version of this software, which is an excellent program and particularly good at catching trojans. If you find it useful you might want to consider buying the full program. When the trial period ends the following features will stop working:
  • Scheduled scans.
  • Real-time monitoring of the entire system.
  • Memory Scan detects active threats.
  • Self-protection at kernel layer guarantees gapless monitoring.
  • Automatic online-update.
The manual memory scan will work in the free version and you can manually update the definitions by clicking on the "Start Update" button under Manual update in the update module.

You can download AVG Anti-Spyware here
AVG Anti-Spyware manual updates.
Download the Full database to your Desktop or to your usual Download Folder and install it by double clicking the file. Make sure that AVG Anti-Spyware is closed before installing the update.

WinPatrol

WinPatrol uses a heuristic approach to detecting attacks and violations of your computing environment. Traditional security programs scan your hard drive searching for previously identified threats. WinPatrol takes snapshot of your critical system resources and alerts you to any changes that may occur without your knowledge. You'll be removing dangerous new programs while others download new reference files.
  • Detect & Neutralize Spyware.
  • Detect & Neutralize ADware.
  • Detect & Neutralize Viral infections.
  • Detect & Neutralize Unwanted IE Add-Ons.
  • Detect & Restore File Type Changes.
  • Automatically Filter Unwanted Cookies.
  • Avoid Start Page Hijacking.
  • Detect changes to HOSTS & critical system files.
  • Kill Multiple Tasks that replicate each other, in a single step!
  • Stop programs that repeatedly add themselves to your Startup List!
Starting with WinPatrol 9.5 PLUS users also get the addition of Real-time Infiltration Detection so they'll know immediately when changes are made to critical system areas. WinPatrol Free is not demo or trial software. You're welcome to use it as long as you like.
You can download WinPatrol here
WinPatrol FAQ

SiteHound by Firetrust

Firetrust introduces the SiteHound Toolbar - the safe way to browse the Internet. With SiteHound, when you browse the Internet, you're shown a warning page every time you go to a site which is a known scam, potentially loads viruses or spyware on to your computer, has questionable content or anything you would not consider reasonable. You are shown a warning page with information about that site. From there you can choose to enter the site or go back. SiteHound is a free add-on to Internet Explorer. (Users of Firefox - a version for you is coming soon.) SiteHound's comprehensive database gathers the knowledge from other users and respected experts from the online security community to tell you which sites are real and which are bogus.

SiteHound will alert you when you enter a site which is known to contain:
  • Fraudulent claims or scams
  • Offensive material
  • Security vulnerabilities
  • Spyware or Adware
  • Spam related material
  • or other content deemed to be unsafe
Specifically, SiteHound blocks these categories:

Adult Spyware Spam Advertising Phishing Possible scam or fraud Misleading or False Advertising
Pharming Rogue or Suspect Product Adware Malware or Virus

System Requirements:
Internet Explorer 5.5+ and Windows 95/98/NT 4/ME/2000/XP

Product Info & Download: SiteHound Toolbar

For advanced users : ProcessGuard

ProcessGuard blocks rootkits, prevents spyware, guards your computer from DLL trojans...
For more information take a moment to read the Introduction and the Known Attacks information pages.
You can download Process Guard here

For advanced users : System Safety Monitor

System Safety Monitor (SSM) allows you to track down Microsoft Windows operating system activity in real-time and to prevent undesirable actions from various malware and spyware programs. SSM's main goal is to discover and block malicious actions of any application.
For more information take a moment to read the Main features of the program.
You can download SSM here

Use an AntiVirus Software

It is very important that your computer has an anti-virus software running on your machine. This alone can save you a lot of trouble with malware in the future. See the link below for a listing of some online & their stand-alone antivirus programs.
Computer Safety On line - Anti-Virus
http://forum.malwareremoval.com/viewtopic.php?p=53#53

Update your Anti Virus Software

It is imperative that you update your Anti virus software at least once a week (Even more if you wish). If you do not update your anti virus software then it will not be able to catch any of the new variants that may come out.

Use a Firewall

I can not stress enough how important it is that you use a Firewall on your computer. Without a firewall your computer is susceptible to being hacked and taken over. Simply using a Firewall in its default configuration can lower your risk greatly. For an article on Firewalls and a listing of some available ones see the link below.
Computer Safety On line - Software Firewalls
http://forum.malwareremoval.com/viewtopic.php?p=56#56
A tutorial on Understanding and Using Firewalls can be found here

Additional Information

For more information about Spyware, the tools available, and other informative material, including information on how you may have been infected in the first place, please check out this link.

A very nice collection of tutorials is available at Bleeping Computer
http://www.bleepingcomputer.com/tutorials/

Finally, after following up on all these recommendations, why not run Jason Levine's Browser Security Tests ?
They will provide you with an insight on how vulnerable you might still be to a number of common exploits.
http://www.jasons-toolbox.com/BrowserSecurity/




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