hijackthis.help and info...

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paynethomas

Thread Starter
Joined
Feb 4, 2004
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27
hijacker log help.


Main site for help about hijackthis log.
http://www.merijn.org/htlogtutorial.html
Umm that is a dead link.


The following information pertains to the log file from hijackthis,
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Definitions

R0, R1, R2, R3 - Internet Explorer Start/Search pages URLs
F0, F1 - Autoloading programs
N1, N2, N3, N4 - Netscape/Mozilla Start/Search pages URLs
O1 - Hosts file redirection
O2 - Browser Helper Objects
O3 - Internet Explorer toolbars
O4 - Autoloading programs from Registry
O5 - IE Options icon not visible in Control Panel
O6 - IE Options access restricted by Administrator
O7 - Regedit access restricted by Administrator
O8 - Extra items in IE right-click menu
O9 - Extra buttons on main IE button toolbar, or extra items in IE 'Tools' menu
O10 - Winsock hijacker
O11 - Extra group in IE 'Advanced Options' window
O12 - IE plugins
O13 - IE DefaultPrefix hijack
O14 - 'Reset Web Settings' hijack
O15 - Unwanted site in Trusted Zone
O16 - ActiveX Objects (aka Downloaded Program Files)
O17 - Lop.com domain hijackers
O18 - Extra protocols and protocol hijackers
O19 - User style sheet hijack


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Examples with instructions.


R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.google.com/
R2 - (this type is not used by HijackThis yet)
R3 - Default URLSearchHook is missing

What to do:
If you recognize the URL at the end as your homepage or search engine, it's OK. If you don't, check it and have HijackThis fix it.
For the R3 items, always fix them unless it mentions a program you recognize, like Copernic.


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F0, F1, F2, F3 - Autoloading programs from INI files (Start Up)
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.google.com/
R2 - (this type is not used by HijackThis yet)
R3 - Default URLSearchHook is missing

What to do:
If you recognize the URL at the end as your homepage or search engine, it's OK. If you don't, check it and have HijackThis fix it.
For the R3 items, always fix them unless it mentions a program you recognize, like Copernic.
(Search Here) http://www.sysinfo.org/startuplist.php


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N1, N2, N3, N4 - Netscape/Mozilla Start & Search page
What it looks like:
N1 - Netscape 4: user_pref("browser.startup.homepage", "www.google.com"); (C:\Program Files\Netscape\Users\default\prefs.js)
N2 - Netscape 6: user_pref("browser.startup.homepage", "http://www.google.com"); (C:\Documents and Settings\User\Application Data\Mozilla\Profiles\defaulto9t1tfl.slt\prefs.js)
N2 - Netscape 6: user_pref("browser.search.defaultengine", "engine://C%3A%5CProgram%20Files%5CNetscape%206%5Csearchplugins%5CSBWeb_02.src"); (C:\Documents and Settings\User\Application Data\Mozilla\Profiles\defaulto9t1tfl.slt\prefs.js)
What to do:
Usually the Netscape and Mozilla homepage and search page are safe. They rarely get hijacked, only Lop.com has been known to do this. Should you see an URL you don't recognize as your homepage or search page, have HijackThis fix it.
(Lop.com) http://www.doxdesk.com/parasite/lop.html


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O1 - Hostsfile redirections
What it looks like:
O1 - Hosts: 216.177.73.139 auto.search.msn.com
O1 - Hosts: 216.177.73.139 search.netscape.com
O1 - Hosts: 216.177.73.139 ieautosearch
O1 - Hosts file is located at C:\Windows\Help\hosts

What to do:
This hijack will redirect the address to the right to the IP address to the left. If the IP does not belong to the address, you will be redirected to a wrong site everytime you enter the address. You can always have HijackThis fix these, unless you knowingly put those lines in your Hosts file.
The last item sometimes occurs on Windows 2000/XP with a Coolwebsearch infection. Always fix this item, or have CWShredder repair it automatically.


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O2 - Browser Helper Objects
What it looks like:
O2 - BHO: Yahoo! Companion BHO - {13F537F0-AF09-11d6-9029-0002B31F9E59} - C:\PROGRAM FILES\YAHOO!\COMPANION\YCOMP5_0_2_4.DLL
O2 - BHO: (no name) - {1A214F62-47A7-4CA3-9D00-95A3965A8B4A} - C:\PROGRAM FILES\POPUP ELIMINATOR\AUTODISPLAY401.DLL (file missing)
O2 - BHO: MediaLoads Enhanced - {85A702BA-EA8F-4B83-AA07-07A5186ACD7E} - C:\PROGRAM FILES\MEDIALOADS ENHANCED\ME1.DLL

What to do:
If you don't directly recognize a Browser Helper Object's name, use TonyK's BHO & Toolbar List to find it by the class ID (CLSID, the number between curly brackets) and see if it's good or bad. In the BHO List, 'X' means spyware and 'L' means safe.
Copy inbetween {#######...} and search
http://www.sysinfo.org/bholist.php (CLSID List)


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O3 - IE toolbars
What it looks like:
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRAM FILES\YAHOO!\COMPANION\YCOMP5_0_2_4.DLL
O3 - Toolbar: Popup Eliminator - {86BCA93E-457B-4054-AFB0-E428DA1563E1} - C:\PROGRAM FILES\POPUP ELIMINATOR\PETOOLBAR401.DLL (file missing)
O3 - Toolbar: rzillcgthjx - {5996aaf3-5c08-44a9-ac12-1843fd03df0a} - C:\WINDOWS\APPLICATION DATA\CKSTPRLLNQUL.DLL

What to do:
If you don't directly recognize a toolbar's name, use TonyK's BHO & Toolbar List to find it by the class ID (CLSID, the number between curly brackets) and see if it's good or bad. In the Toolbar List, 'X' means spyware and 'L' means safe.
If it's not on the list and the name seems a random string of characters and the file is in the 'Application Data' folder (like the last one in the examples above), it's probably Lop.com, and you definately should have HijackThis fix it.
Again copy (XXX...} and search
http://www.sysinfo.org/bholist.php (CLSID List)


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O4 - Autoloading programs from Registry or Startup group
What it looks like:
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: winlogon.exe

What to do:
Use PacMan's Startup List to find the entry and see if it's good or bad.
If the item shows a program sitting in a Startup group (like the last item above), HijackThis cannot fix the item if this program is still in memory. Use the Windows Task Manager (TASKMGR.EXE) to close the process prior to fixing.
Copy between [ "scanRegistry" ] then look for the "autorun"
(Search here) http://www.sysinfo.org/startuplist.php


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O5 - IE Options not visible in Control Panel
What it looks like:
O5 - control.ini: inetcpl.cpl=no

What to do:
Unless you or your system administrator have knowingly hidden the icon from Control Panel, have HijackThis fix it.


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O6 - IE Options access restricted by Administrator
What it looks like:
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present

What to do:
Unless you have the Spybot S&D option 'Lock homepage from changes' active, or your system administrator put this into place, have HijackThis fix this.


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O7 - Regedit access restricted by Administrator
What it looks like:
O7 - HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System, DisableRegedit=1

What to do:
Always have HijackThis fix this, unless your system administrator has put this restriction into place.


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O8 - Extra items in IE right-click menu
What it looks like:
O8 - Extra context menu item: &Google Search - res://C:\WINDOWS\DOWNLOADED PROGRAM FILES\GOOGLETOOLBAR_EN_1.1.68-DELEON.DLL/cmsearch.html
O8 - Extra context menu item: Yahoo! Search - file:///C:\Program Files\Yahoo!\Common/ycsrch.htm
O8 - Extra context menu item: Zoom &In - C:\WINDOWS\WEB\zoomin.htm
O8 - Extra context menu item: Zoom O&ut - C:\WINDOWS\WEB\zoomout.htm

What to do:
If you don't recognize the name of the item in the right-click menu in IE, have HijackThis fix it.


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O9 - Extra buttons on main IE toolbar, or extra items in IE 'Tools' menu
What it looks like:
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Messenger (HKLM)
O9 - Extra button: AIM (HKLM)

What to do:
If you don't recognize the name of the button or menuitem, have HijackThis fix it.


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O10 - Winsock hijackers
What it looks like:
O10 - Hijacked Internet access by New.Net
O10 - Broken Internet access because of LSP provider 'c:\progra~1\common~2\toolbar\cnmib.dll' missing
O10 - Unknown file in Winsock LSP: c:\program files\newton knows\vmain.dll

What to do:
It's best to fix these using LSPFix from Cexx.org, or Spybot S&D from Kolla.de.
Note that 'unknown' files in the LSP stack will not be fixed by HijackThis, for safety issues.


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O11 - Extra group in IE 'Advanced Options' window
What it looks like:
O11 - Options group: [CommonName] CommonName

What to do:
The only hijacker as of now that adds its own options group to the IE Advanced Options window is CommonName. So you can always have HijackThis fix this.


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O12 - IE plugins
What it looks like:
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O12 - Plugin for .PDF: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll

What to do:
Most of the time these are safe. Only OnFlow adds a plugin here that you don't want (.ofb).


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O13 - IE DefaultPrefix hijack
What it looks like:
O13 - DefaultPrefix: http://www.pixpox.com/cgi-bin/click.pl?url=
O13 - WWW Prefix: http://prolivation.com/cgi-bin/r.cgi?
O13 - WWW. Prefix: http://ehttp.cc/?

What to do:
These are always bad. Have HijackThis fix them.


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O14 - 'Reset Web Settings' hijack
What it looks like:
O14 - IERESET.INF: START_PAGE_URL=http://www.searchalot.com

What to do:
If the URL is not the provider of your computer or your ISP, have HijackThis fix it.


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O15 - Unwanted sites in Trusted Zone
What it looks like:
O15 - Trusted Zone: http://free.aol.com
O15 - Trusted Zone: *.coolwebsearch.com
O15 - Trusted Zone: *.msn.com

What to do:
Most of the time only AOL and Coolwebsearch silently add sites to the Trusted Zone. If you didn't add the listed domain to the Trusted Zone yourself, have HijackThis fix it.


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O16 - ActiveX Objects (aka Downloaded Program Files)
What it looks like:
O16 - DPF: Yahoo! Chat - http://us.chat1.yimg.com/us.yimg.com/i/chat/applet/c381/chat.cab

O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab

What to do:
If you don't recognize the name of the object, or the URL it was downloaded from, have HijackThis fix it. If the name or URL contains words like 'dialer', 'casino', 'free_plugin' etc, definitely fix it.
Javacool's SpywareBlaster has a huge database of malicious ActiveX objects that can be used for looking up CLSIDs. (Right-click the list to use the Find function.)
http://www.wilderssecurity.net/index.html


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O17 - Lop.com domain hijacks
What it looks like:
O17 - HKLM\System\CCS\Services\VxD\MSTCP: Domain = aoldsl.net
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = W21944.find-quick.com
O17 - HKLM\Software\..\Telephony: DomainName = W21944.find-quick.com
O17 - HKLM\System\CCS\Services\Tcpip\..\{D196AB38-4D1F-45C1-9108-46D367F19F7E}: Domain = W21944.find-quick.com
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: SearchList = gla.ac.uk
O17 - HKLM\System\CS1\Services\VxD\MSTCP: NameServer = 69.57.146.14,69.57.147.175

What to do:
If the domain is not from your ISP or company network, have HijackThis fix it. The same goes for the 'SearchList' entries.
For the 'NameServer' (DNS servers) entries, Google for the IP or IPs and it will be easy to see if they are good or bad.

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O18 - Extra protocols and protocol hijackers
What it looks like:
O18 - Protocol: relatedlinks - {5AB65DD4-01FB-44D5-9537-3767AB80F790} - C:\PROGRA~1\COMMON~1\MSIETS\msielink.dll
O18 - Protocol: mctp - {d7b95390-b1c5-11d0-b111-0080c712fe82}
O18 - Protocol hijack: http - {66993893-61B8-47DC-B10D-21E0C86DD9C8}

What to do:
Only a few hijackers show up here. The known baddies are 'cn' (CommonName), 'ayb' (Lop.com) and 'relatedlinks' (Huntbar), you should have HijackThis fix those.
Other things that show up are either not confirmed safe yet, or are hijacked (i.e. the CLSID has been changed) by spyware. In the last case, have HijackThis fix it.


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O19 - User style sheet hijack
What it looks like:
O19 - User style sheet: c:\WINDOWS\Java\my.css

What to do:
In the case of a browser slowdown and frequent popups, have HijackThis fix this item if it shows up in the log. However, since only Coolwebsearch does this, it's better to use CWShredder to fix it.




copied from the website, http://www.merijn.org/htlogtutorial.html
copy rights unknown.
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Warning

Please read this page for information on what the "Status" column means, why you shouldn't end tasks/processes from CTRL+ALT+DEL just because they're in this list and contact details for new entries to the list.

Last update :- 5th February, 2004
4250 items listed


If you wish to reproduce or re-use the information provided here by all means do so but please respect the Copyright information at the base of the pages and indicate to your visitors or the users of your software as to where you got the information.

http://www.sysinfo.org/startuplist.php
Presentation, format & comments Copyright © 2001 - 2003 Paul Collins
Portions Copyright © Peter Forrest, Denny Denham, Sylvain Prevost, Tony Klein
Database creation and support by Patrick Kolla
Software support by John Mayer
All rights reserved

http://www.sysinfo.org/bholist.php
Copyright 2000-2003 Tony Klein and others. All rights reserved.
 
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