Question

LANfiltrator virus, closes Norton

Asked by: jonnyjohan

I am running Windows 98 SE.  I have a virus that when disconnected from the internet pops up a small warning box titled LANfiltrator.  It apparently is shutting down my Norton Antivirus in normal mode.  I have updated my virus definitions and tried scanning the computer using the Norton AV CD, the Norton AV Website, running Norton AV in safe mode.  None of these things have come up with any virus though.  Yet it still is doing there with the popups when I disconnect from my LAN and the internet.  I have tried what the Symantec website suggests for the virus Backdoor.LANfiltrator.  The following is what the Registry Editor is running  

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

Ati2cwxx                                    Ati2cwxx.exe
AtiPTA                                        Atiptaab.exe
bpcpost.exe                              C:\WINDOWS\SYSTEM\bpcpost.exe
ccApp                                        "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
ccRegVfy                                   "C:\Program Files\Common Files\Symantec Shared\ccRegVfy.exe"
CriticalUpdate                           C:\WINDOWS\SYSTEM\wucrtupd.exe -startup
CTRegRun                                 C:\WINDOWS\CTRegRun.EXE
HPDJ Taskbar Utility                  C:\WINDOWS\SYSTEM\hpztsb05.exe
ICSDCLT                                    C:\WINDOWS\rundll32.exe C:\WINDOWS\SYSTEM\icsdclt.dll,ICSClient
IrMon                                        IrMon.exe
LoadPowerProfile                      Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
LoadQM                                     loadqm.exe
Logitech Utility                           LOGI_MWX.EXE
LWBMOUSE                               C:\Program Files\Labtec\Labtec Mouse Software\1.0\lwbwheel.exe
Quicktime Task                          "C:\WINDOWS\SYSTEM\QTTASK.EXE" -atboottime
RegShave                                  C:\Progra~1\REGSHAVE\REGSHAVE.EXE /autorun
ScanRegistry                              C:\WINDOWS\scanregw.exe /autorun
StillImageMonitor                       C:\WINDOWS\SYSTEM\STIMON.EXE
System                                       C:\WINDOWS\SYSTEM\css.exe
SystemTray                                SysTray.Exe
TaskMonitor                                C:\WINDOWS\taskmon.exe
TKBellExe                                   "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
WhenUSave                                C:\Program Files\Save\Save.exe

A lot of that is gibberish to me but as I understand it these are the programs that run upon startup.  I am guessing that a lot of these are probably not necessary, but I iwll fight that battle another day.  For right now I just need to know how to get rid of the Lanfiltrator garbage.  I think that is all of the information that I have.  Thank you anyone for any help that you can offer.  

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2003-06-13 at 14:49:11ID20647858
Tags

virus

,

closes

Topic

Networking Security Vulnerabilities

Participating Experts
3
Points
125
Comments
8

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. rundll32.exe problem
    Hello, I have a problem when i shutdown my laptop, rundll32.exe is not closing, i have to close it manually.. Whats the use of this rundll.exe. How can achieve the problem. Also when i goto controlpanel/software for uninstallating any programs nothing displays there.. Is the...
  2. RUNDLL32.EXE
    After running HijackThis both rundll32.exe and RUNDLL32.EXE are active are they the same? If not which should be deleted?
  3. winhlp32.exe dll initialization failed with rundll32.exe n…
    i receive winhlp32.exe dll initialization failed when i shut down together with rundll32.exe not responsponding, i have to cancel both in order to shut down. i have tried system restore, however does not resolve the problem. can you help? thanks Rossbz.
  4. Virus that hijacks the mouse?
    Hi i have a Dell Inspiron Laptop that has the mouse and keyboard some how hijacked. The mouse cursor will randomly just start going haywire. If I'm typing at the time it decides to jump to one of the corners it will pull me out of whatever I'm working on. Very frustrating ...

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: ghanaPosted on 2003-06-14 at 01:42:50ID: 8723119

I've made some analysis. In my opinion there are two suspicious items:
1) WhenUSave seems to be a known adware.
2) I can't find trusted information about CSS.EXE. It's named similar to a Windows system process (csrss.exe).

I would recommend to disable these items temporarily. Try css.exe first. Then check whether NAV will be still terminated.

Ati2cwxx: ATI video cards, not needed (http://www.azpchelp.com/StartupListA-F.htm)
AtiPTA: Part of ATI display drivers (http://www.answersthatwork.com/Tasklist_pages/tasklist_a.htm)
bpcpost.exe: Microsoft TV Viewer Post Setup program (http://answersthatwork.com/Tasklist_pages/tasklist_b.htm)
ccApp: Norton Antivirus Auto-Protect
ccRegVfy: Norton Antivirus Auto-Protect
CriticalUpdate: Windows Critical Update Notification (http://www.windows-help.net/windows98/troub-312.shtml)
CTRegRun: Creative Labs registration reminder. Not required.
HPDJ Taskbar Utility: Ghostscript device driver for printers (http://dvdxcopy.afterdawn.com/thread_view.cfm/31817)
ICSDCLT: Internet Connection Sharing (http://www.pacs-portal.co.uk/startup_pages/startup_i.php)
IrMon: Windows Infrared Port Monitor (http://www.liutilities.com/products/wintaskspro/processlibrary/irmon/)
LoadPowerProfile: Loads Power Management settings (http://www.greatis.com/regrun3necessary.htm)
LoadQM: MSN Queue Manager Loader (http://www.liutilities.com/products/wintaskspro/processlibrary/loadqm/)
Logitech Utility: Logitech Mouseware driver (http://www.pacs-portal.co.uk/startup_pages/startup_l.php)
LWBMOUSE: Mouse driver
Quicktime Task: Quick Time Tray Icon (http://www.liutilities.com/products/wintaskspro/processlibrary/qttask/)
RegShave: Fuji Finepix digital cameras (http://www.azpchelp.com/StartupListQ-U.htm)
ScanRegistry: Windows registry checker (http://homepages.maxnet.co.nz/brunnies/pchelp/regcheck.html)
StillImageMonitor: Still Image Monitor (http://support.microsoft.com/?kbid=257815)
System - C:\WINDOWS\SYSTEM\css.exe - ???? CAN'T FIND INFORMATION ABOUT THAT!!!
SystemTray: Windows Power Management (http://www.liutilities.com/products/wintaskspro/processlibrary/systray/)
TaskMonitor: Windows Task Optimizer (http://www.liutilities.com/products/wintaskspro/processlibrary/taskmon/)
TKBellExe: RealNetworks Scheduler (http://www.reger24.de/prozesse/realsched.exe.html)
WhenUSave: Adware that causes pop-up windows to appear on respectable sites. Comes from WhenU.com (http://www.winpatrol.com/stats.html)

Additionally you could try to scan your computer with an online virus scanner. This might be not disabled by the trojan and might clean the infection:
http://housecall.trendmicro.com/

 

by: jonnyjohanPosted on 2003-06-14 at 21:39:41ID: 8725939

Simply amazing! When I found Experts Exchange I have to admit that I was skeptical.  I mean seriously, who offers expert help for free? (Even one question!?) But the first answer I received was so indepth, professional, and accurate.  I was able to fix the problem within a matter of minutes of reading the expert's (ghana, you were right on thanks so much!!) reply to my question.  Next time I have a problem (there is always a next time with computers) I know where the first place I will go is...www.Experts-Exchange.com!!  

 

by: ghanaPosted on 2003-06-14 at 21:56:06ID: 8725984

Glad I could help you and thank you for rating the answer! Your question was very professional becaue you offered the necessary information to do further investigation. I would be happy if every question here would be so detailled. I'm interested whether it was really css.exe that did shut down NAV. Or did housecall find another trojan?

 

by: jonnyjohanPosted on 2003-06-15 at 18:51:41ID: 8728807

It is strange, I ran all the different antivrus software and online checkers (including housecall) and there is no record of any virus or trojan being on my computer.  When I disabled the CSS.EXE file and restarted NAV ran fine.  I then enabled CSS.EXE again and restarted in safe mode.  I used RegCleaner to delete the registry entry for CSS.EXE and deleted CSS.EXE out of the C:\WINDOWS\SYSTEMS folder.  Restarted in normal mode and all has been well since.  And you are welcome for rating your answer, you definitely deserved the A!

 

by: ghanaPosted on 2003-06-15 at 22:40:28ID: 8729487

Thanks for your feedback!

 

by: nmirandaPosted on 2003-06-19 at 12:08:32ID: 8760724

I totally agree with jonnyjohan in his grade and definitely ghana deserves an A+!!!!!

One of our manager's computer was infected with this trojan and just like jonny described, the advice in the Symantec website its impossible to follow since the Anti-virus is just not working.  Only after I followed the instructions ghana provided (jonnyjohan, thanks for detailing what you did step by step in one of your replies too!!!) I was able to get rid of the annoying pop-up, fix the registry, and re-install the AV.

I am definitely coming here first the next time!

 

by: Master_Alvin7Posted on 2003-12-02 at 14:59:49ID: 9862535

Thankyou very much Ghana, although your solution did not help mine I was able to fix it.  Here is my full assesment as to what I had.

My problem was very similar to jonny's.  It would close McAfee, regedit, and installs of any virus programs that I could find.  So I started investigating MsConfig (Start -> Run -> MsConfig).  I found a strange entry called Csrss.exe.  I know that Csrss is a system process that windows uses(for what I don't know) so I didn't want to disable it.  However it had a strange file path C:\Windows\Csrss.exe and it had 3 entries.  So I went to that location and investigated the file.  To my suprise that is NOT a normal file and doesn't not belong.  So I went back to Msconfig and disabled the startup process for Csrss.  Csrss.exe can be renamed or moved but it cannot be deleted.  So I moved it to my desktop so I could keep and eye on it.  I rebooted and the problem was gone!  So I went futher and compiled some instructions for removal.

1) First off you have to remove the file from startup.  So go to Start -> Run then type MsConfig
2) Click the tab Startup and uncheck Csrss.exe, there should be 3.
3) Go to C:\Windows and move csrss.exe to your desktop
4) Restart
5) Delete the file Csrss.exe from you desktop
6) Open regedit by going to Start -> Run and type Regedit (the virus prevented this from being done before removal)
7) Go to the following roots and remove the key "Runtime Process" with the value "C:\Windows\Csrss.exe"  Nothing ELSE!!!
      HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices
      HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServices
      HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows\Run

That top HKEY might be located in either RunServives or RunOnceExe, sorry just check both.
(Those are NOT the only places this virus implants to the registry, however they are all that need deleting.  If you want them all gone, search your registry for Csrss and delete ONLY the ones with the value C:\Windows\Csrss.exe.  NOTHING ELSE.  I CANNOT stress how important it is that you DO NOT delete anything else that you DO NOT understand in the registry.  This CAN result in permant damage. )

This should get rid of the file permantly.  It worked great for me and I hope anyone else with this problem will be able to fix it as easily as I did.

 

by: Master_Alvin7Posted on 2003-12-02 at 15:00:55ID: 9862551

BTW I am running Windows XP Professional.

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...