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Hijack This log - pop-ups problems

Started by IreLynx , Oct 29 2004 01:02 PM

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#1
IreLynx

Posted 29 October 2004 - 01:02 PM

New Member

Member
5 posts

Okay, so I deleted all the temp files, ran the famous 3 (ad-aware, spybot, anti-vir), and they found a bunch of stuff. Off the top of my head, I remember removing 180Solutions, some other common adware, and there was a toolbar that I turned off, but it didn't show up in the scans.

This is off of my brother's system, so problems are to be expected. I don't know why mcafee even shows up in the process list...it was uninstalled & I don't remember seeing a program folder for it still hanging around. In any case, ere's the log.

Logfile of HijackThis v1.98.2
Scan saved at 2:53:31 PM, on 10/29/2004
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\spoolsv.exe
c:\PROGRA~1\mcafee.com\vso\mcvsrte.exe
C:\Program Files\TightVNC\WinVNC.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\hkcmd.exe
C:\Program Files\Roxio\Easy CD Creator 5\DirectCD\DirectCD.exe
C:\Program Files\AVPersonal\AVWUPSRV.EXE
C:\Program Files\AVPersonal\AVGUARD.EXE
C:\Program Files\AVPersonal\AVGNT.EXE
C:\Program Files\Hijack This\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = http://www.begin2sea...sidesearch.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.dellnet.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.begin2sea...sidesearch.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.begin2sea...sidesearch.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://red.clientapp...//www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://red.clientapp...//www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://ie.search.msn...st/srchasst.htm
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,CustomizeSearch = http://ie.search.msn...st/srchcust.htm
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapp...rch/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://red.clientapp...//www.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.begin2sea...sidesearch.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.begin2sea...sidesearch.html
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapp...//www.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page_bak = http://www.dellnet.com
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = iexplore
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = http://localhost;
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: (no name) - {20EC3D2D-33C1-4C9D-BC37-C2D500688DA2} - (no file)
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\Userinit.exe
O2 - BHO: WhistleHlprObj Class - {27557cf1-a237-496d-8c8f-08f3844c6a8b} - C:\Program Files\WhistleSoftware\WselServices\WhistleHelper.dll (file missing)
O2 - BHO: Setup.Setup1 - {2E65A557-173C-4DE9-860B-28FC5CACA542} - C:\DOCUME~1\ALLUSE~1\APPLIC~1\Setup\Setup.dll
O2 - BHO: (no name) - {2FF5573C-0EB5-43db-A1B2-C4326813468E} - (no file)
O2 - BHO: ohb - {4D568F0F-8AC9-40AB-88B7-415134C78777} - C:\WINDOWS\System32\winb2s32.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: (no name) - {E9A8C914-C382-29A1-EB44-CC7969AFC658} - C:\WINDOWS\Hcetfwhv.dll
O2 - BHO: ADP UrlCatcher Class - {F4E04583-354E-4076-BE7D-ED6A80FD66DA} - C:\WINDOWS\System32\msbe.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Search - {A2C24BAA-D3D7-E623-F407-7651E6CA4DCA} - C:\WINDOWS\Hcetfwhv.dll
O3 - Toolbar: Begin2Search.com Bar - {52FE5233-367C-4EFB-BDD7-0BE4D212C107} - C:\WINDOWS\System32\winb2s32.dll
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [AdaptecDirectCD] "C:\Program Files\Roxio\Easy CD Creator 5\DirectCD\DirectCD.exe"
O4 - HKLM\..\Run: [WinVNC] "C:\Program Files\TightVNC\WinVNC.exe" -servicehelper
O4 - HKLM\..\Run: [AVGCtrl] "C:\Program Files\AVPersonal\AVGNT.EXE" /min
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [SpybotSnD] "C:\Program Files\Spybot - Search & Destroy\SpybotSD.exe" /autoclose
O4 - HKCU\..\Run: [Start WingMan Profiler] "C:\Program Files\Logitech\Profiler\lwemon.exe" /noui
O4 - HKCU\..\Run: [usrsvpia] C:\WINDOWS\System32\usrsvpia.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O9 - Extra button: Whistle - {220E39C3-B081-4719-AB1A-9A884DCBD05C} - C:\Program Files\WhistleSoftware\WselServices\webband.dll (file missing)
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O16 - DPF: Toki Toki Boom - http://download.game...nts/y/vto_x.cab
O16 - DPF: Yahoo! Fleet - http://download.game...s/y/fltt3_x.cab
O16 - DPF: Yahoo! Literati - http://download.game...nts/y/tt3_x.cab
O16 - DPF: Yahoo! Spelldown - http://download.game...ts/y/sdt1_x.cab
O16 - DPF: {12589FA1-C456-11CE-BF01-10AA1055595A} - http://www.wsel.net/...lesilent610.cab
O16 - DPF: {1D0D9077-3798-49BB-9058-393499174D5D} - file://c:\counter.cab
O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - http://imgfarm.com/i...etup1.0.0.6.exe
O16 - DPF: {39B0684F-D7BF-4743-B050-FDC3F48F7E3B} (FilePlanet Download Control Class) - http://www.fileplane...DC_1_0_0_44.cab
O16 - DPF: {6A060448-60F9-11D5-A6CD-0002B31F7455} (ExentInf Class) - http://us.games2.yim...ctl_0_0_0_1.ocx
O16 - DPF: {70BA88C8-DAE8-4CE9-92BB-979C4A75F53B} (GSDACtl Class) - http://launch.gamesp...nch/alaunch.cab
O16 - DPF: {77E32299-629F-43C6-AB77-6A1E6D7663F6} (Groove Control) - http://www.nick.com/.../GrooveAX25.cab
O16 - DPF: {87067F04-DE4C-4688-BC3C-4FCF39D609E7} - http://download.webs...99/QDow_AS2.cab
O16 - DPF: {90C9629E-CD32-11D3-BBFB-00105A1F0D68} (InstallShield International Setup Player) - http://www.installen...gine/isetup.cab
O16 - DPF: {AB29A544-D6B4-4E36-A1F8-D3E34FC7B00A} - http://install.wildt...are/install.cab
O16 - DPF: {B9191F79-5613-4C76-AA2A-398534BB8999} - http://us.dl1.yimg.c...utocomplete.cab
O16 - DPF: {B942A249-D1E7-4C11-98AE-FCB76B08747F} (RealArcadeRdxIE Class) - http://games-dl.real...ArcadeRdxIE.cab
O16 - DPF: {CFCB7308-782F-11D4-BE27-000102598CE4} (NPX Control) - http://kr.pristontal...protect/npx.cab
O16 - DPF: {D719897A-B07A-4C0C-AEA9-9B663A28DFCB} (iTunesDetector Class) - http://ax.phobos.app.../ITDetector.cab
O16 - DPF: {F54C1137-5E34-4B95-95A5-BA56D4D8D743} (Secure Delivery) - http://www.gamespot.com/KDX/kdx.cab
O16 - DPF: {FEC3E5A3-50F7-4B0C-97D8-01CF69DFBFC7} (Measurement Service Client) - http://ccon.madonion.../global/msc.cab
O16 - DPF: {FF0C042C-98E9-4C36-B2EC-E21FDFDCEF75} (InstallCtl Class) - http://download.reds...rsinstaller.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{ECAFB696-68B0-43EB-9108-6267DFEBEC8F}: NameServer = 192.168.1.1

#2
-=jonnyrotten=-

Posted 29 October 2004 - 01:47 PM

Member 2k

Retired Staff
2,678 posts

Please delete your temporary files. Double Click My Computer (WinXP: Navigate to Start --->My Computer)
You will see an icon representing your harddrive (most likely C: Drive) Right Click on the hard drive icon and click Properties at the
bottom of the fly out window. One the very first tab (General) you will see a button labeled "Disk Cleanup"...click that button.
Make sure the following are checked:
Downloaded Program Files
Temporary Internet Files and
Recycle Bin
Click OK and Disk Cleanup will delete those files for you.

Next go to control panel, add/remove programs and uninstall any or all of the following programs:

Wild Tangent
Weather Bug
Gain
Gator
Gmt
Begin2Search
FunWeb
Any search/toolbars you find besides google.

You may wish to print out a copy of these instructions to follow while you complete this procedure.

Please save Hijack This in a permanent folder (i.e. C:\HJT). This ensures backups are saved and accessible.

Please go offline, close all browsers and any open Windows, making sure that only HijackThis is open. Scan and when it finishes, put an X in the boxes, only next to these following items, then click fix checked.

R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = http://www.begin2sea...sidesearch.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.begin2sea...sidesearch.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.begin2sea...sidesearch.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://red.clientapp...//www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://red.clientapp...//www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://ie.search.msn...st/srchasst.htm
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,CustomizeSearch = http://ie.search.msn...st/srchcust.htm
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapp...rch/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://red.clientapp...//www.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.begin2sea...sidesearch.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.begin2sea...sidesearch.html
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapp...//www.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = iexplore
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: (no name) - {20EC3D2D-33C1-4C9D-BC37-C2D500688DA2} - (no file)
O2 - BHO: WhistleHlprObj Class - {27557cf1-a237-496d-8c8f-08f3844c6a8b} - C:\Program Files\WhistleSoftware\WselServices\WhistleHelper.dll (file missing)
O2 - BHO: Setup.Setup1 - {2E65A557-173C-4DE9-860B-28FC5CACA542} - C:\DOCUME~1\ALLUSE~1\APPLIC~1\Setup\Setup.dll
O2 - BHO: (no name) - {2FF5573C-0EB5-43db-A1B2-C4326813468E} - (no file)
O2 - BHO: ohb - {4D568F0F-8AC9-40AB-88B7-415134C78777} - C:\WINDOWS\System32\winb2s32.dll
O2 - BHO: (no name) - {E9A8C914-C382-29A1-EB44-CC7969AFC658} - C:\WINDOWS\Hcetfwhv.dll
O2 - BHO: ADP UrlCatcher Class - {F4E04583-354E-4076-BE7D-ED6A80FD66DA} - C:\WINDOWS\System32\msbe.dll
O3 - Toolbar: Search - {A2C24BAA-D3D7-E623-F407-7651E6CA4DCA} - C:\WINDOWS\Hcetfwhv.dll
O3 - Toolbar: Begin2Search.com Bar - {52FE5233-367C-4EFB-BDD7-0BE4D212C107} - C:\WINDOWS\System32\winb2s32.dll
O4 - HKCU\..\Run: [usrsvpia] C:\WINDOWS\System32\usrsvpia.exe
O9 - Extra button: Whistle - {220E39C3-B081-4719-AB1A-9A884DCBD05C} - C:\Program Files\WhistleSoftware\WselServices\webband.dll (file missing)
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O16 - DPF: {12589FA1-C456-11CE-BF01-10AA1055595A} - http://www.wsel.net/...lesilent610.cab
O16 - DPF: {1D0D9077-3798-49BB-9058-393499174D5D} - file://c:\counter.cab
O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - http://imgfarm.com/i...etup1.0.0.6.exe
O16 - DPF: {87067F04-DE4C-4688-BC3C-4FCF39D609E7} - http://download.webs...99/QDow_AS2.cab
O16 - DPF: {90C9629E-CD32-11D3-BBFB-00105A1F0D68} (InstallShield International Setup Player) - http://www.installen...gine/isetup.cab
O16 - DPF: {AB29A544-D6B4-4E36-A1F8-D3E34FC7B00A} - http://install.wildt...are/install.cab
O16 - DPF: {B942A249-D1E7-4C11-98AE-FCB76B08747F} (RealArcadeRdxIE Class) - http://games-dl.real...ArcadeRdxIE.cab
O16 - DPF: {CFCB7308-782F-11D4-BE27-000102598CE4} (NPX Control) - http://kr.pristontal...protect/npx.cab
O16 - DPF: {FEC3E5A3-50F7-4B0C-97D8-01CF69DFBFC7} (Measurement Service Client) - http://ccon.madonion.../global/msc.cab
O16 - DPF: {FF0C042C-98E9-4C36-B2EC-E21FDFDCEF75} (InstallCtl Class) - http://download.reds...rsinstaller.cab

Please reboot into safe mode - How do I boot into "Safe" mode?.
Be sure you're able to view hidden files, and remove the following files in bold (if found):

C:\DOCUME~1\ALLUSE~1\APPLIC~1\Setup
C:\WINDOWS\System32\winb2s32.dll
C:\WINDOWS\Hcetfwhv.dll
C:\WINDOWS\System32\msbe.dll
C:\WINDOWS\System32\usrsvpia.exe

You can also get rid of this if you don't use McAffee anymore:
c:\PROGRAM FILES\mcafee.com

Reboot normally and post new log.

-=jonnyrotten=- <_<

#3
IreLynx

Posted 29 October 2004 - 04:16 PM

New Member

Topic Starter
Member
5 posts

Here's the updated log for his system. Haven't had any pop-ups thus far.

Logfile of HijackThis v1.98.2
Scan saved at 6:13:21 PM, on 10/29/2004
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\hkcmd.exe
C:\Program Files\Roxio\Easy CD Creator 5\DirectCD\DirectCD.exe
C:\Program Files\AVPersonal\AVGNT.EXE
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Logitech\Profiler\lwemon.exe
C:\Program Files\AVPersonal\AVGUARD.EXE
C:\Program Files\AVPersonal\AVWUPSRV.EXE
C:\Program Files\TightVNC\WinVNC.exe
C:\Program Files\Hijack This\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.dellnet.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page_bak = http://www.dellnet.com
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = http://localhost;
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\Userinit.exe
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [AdaptecDirectCD] "C:\Program Files\Roxio\Easy CD Creator 5\DirectCD\DirectCD.exe"
O4 - HKLM\..\Run: [WinVNC] "C:\Program Files\TightVNC\WinVNC.exe" -servicehelper
O4 - HKLM\..\Run: [AVGCtrl] "C:\Program Files\AVPersonal\AVGNT.EXE" /min
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [SpybotSnD] "C:\Program Files\Spybot - Search & Destroy\SpybotSD.exe" /autofix /autoclose
O4 - HKCU\..\Run: [Start WingMan Profiler] "C:\Program Files\Logitech\Profiler\lwemon.exe" /noui
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O16 - DPF: Toki Toki Boom - http://download.game...nts/y/vto_x.cab
O16 - DPF: Yahoo! Fleet - http://download.game...s/y/fltt3_x.cab
O16 - DPF: Yahoo! Literati - http://download.game...nts/y/tt3_x.cab
O16 - DPF: Yahoo! Spelldown - http://download.game...ts/y/sdt1_x.cab
O16 - DPF: {39B0684F-D7BF-4743-B050-FDC3F48F7E3B} (FilePlanet Download Control Class) - http://www.fileplane...DC_1_0_0_44.cab
O16 - DPF: {6A060448-60F9-11D5-A6CD-0002B31F7455} (ExentInf Class) - http://us.games2.yim...ctl_0_0_0_1.ocx
O16 - DPF: {70BA88C8-DAE8-4CE9-92BB-979C4A75F53B} (GSDACtl Class) - http://launch.gamesp...nch/alaunch.cab
O16 - DPF: {77E32299-629F-43C6-AB77-6A1E6D7663F6} (Groove Control) - http://www.nick.com/.../GrooveAX25.cab
O16 - DPF: {B9191F79-5613-4C76-AA2A-398534BB8999} - http://us.dl1.yimg.c...utocomplete.cab
O16 - DPF: {D719897A-B07A-4C0C-AEA9-9B663A28DFCB} (iTunesDetector Class) - http://ax.phobos.app.../ITDetector.cab
O16 - DPF: {F54C1137-5E34-4B95-95A5-BA56D4D8D743} (Secure Delivery) - http://www.gamespot.com/KDX/kdx.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{ECAFB696-68B0-43EB-9108-6267DFEBEC8F}: NameServer = 192.168.1.1

#4
Smokey

Posted 29 October 2004 - 04:33 PM

Member 1K

Retired Staff
1,423 posts

Congratulations! Your system is CLEAN <_<

How do you prevent spyware from being installed again? We strongly recommend installing SpywareBlaster (it's free for personal use).

Prevent the installation of ActiveX-based spyware, adware, browser hijackers, dialers, and other potentially unwanted pests.
Block spyware/tracking cookies in Internet Explorer and Mozilla/Firefox.
Restrict the actions of potentially dangerous sites in Internet Explorer.
Consumes no system resources.

Download, run, check for updates, download updates, select all, protect against checked. All done. Check for updates every couple of weeks. If you have any errors running the program like a missing file see the link at the bottom of the javacool page.
Link to SpywareBlaster: http://www.geekstogo...tion=show&id=12

It's also CRITICAL to keep your system up to date to avoid unnecessary security risks. Click Here to make sure that you have the latest patches for Windows.

Included in those updates is Windows XP Service Pack 2. Since you're junkware free, the time to get it is NOW. Service Pack 2 is a MAJOR upgrade for XP. It adds numerous security and software patches, as well as new features and functionality. You will also be adding another layer of protection against future threats.

Running an anti-virus and keeping it up-to-date is REQUIRED to keep a clean system. If you don't have one or are sick of paying for what you have, AVG offers a great, free anti-virus:
http://free.grisoft....us/doc/2/tpl/v5

A firewall is also another MUST. If you do not have one or Windows XP Service Pack 2, both Zone Labs and Sygate offer great, free firewalls. I suggest using Zone Alarm for an advanced user or Sygate Personal Firewall for beginner users.

These next two steps are optional, but will provide the greatest protection.
1. Use ANY browser at all times besides Internet Explorer, almost every exploit is crafted to take advantage of an IE weakness. We usually recommend Firefox (You'll need to use IE only to visit Windows Update).
2. Install Sun's Java. It's much more secure than Microsoft's Java Virtual Machine.

It's okay to delete the Hijack This folder in a couple weeks if everything is working okay.

After doing all these, your system will be thoroughly protected from future threats.