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Topic: New CoolWebSearch variants  (Read 78066 times)
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« on: October 13, 2003, 01:45:46 »
Unzy
Guest

Great summation by Merijn of known CWS variants so far :

CoolWebSearch Chronicles


The last couple of days CWS has been real busy, new variants have been identified, some of them still under investigation :

1. sys.reg/winshow
as seen HERE <- sys.reg

as seen HERE <- winshow.dll

2. searchv/msupdater
as seen HERE

3. dreplace.dll (BHO)
as seen HERE and HERE

NOTE : If you have the Dreplace.dll, with svcinit in running processes, there is a special registry fix, written by Mosaic (thanks Mo!) :

Check the item below in HijackThis, close all windows except HijackThis and click Fix checked:
O2 - BHO: HTML Source Editor - {086AE192-23A6-48D6-96EC-715F53797E85} - C:\WINDOWS\System32\DReplace.dll
Then go to this site http://www.mjc1.com/files/mo/ and click the svcinit link and download userinit.zip
Unzip and doubleclick that file. (Thanks Pieter)

4. searchdot.net/C:\WINDOWS\Fonts\msoffice.hta (CWS?)
as seen HERE

5. searchv/mupdate
F0 - system.ini: Shell=Explorer.exe mupdate.exe
F1 - win.ini: run=mupdate.exe
F2 - REG:system.ini: Shell=Explorer.exe mupdate.exe
as seen HERE

6. Luckysearch.net variant, hijack keeps returning
as seen HERE

Merijn seems to be real busy irl; hope he hurries back soon, he will have a lot of work Wink Hope Tony and Pieter still have a lot of free time in their hands, for doing great investigational work Thumbs Up

(Thanks to mjc and boOch for the help of this summation!) Smile

Cheers,
Logged
« Reply #1 on: October 15, 2003, 01:55:39 »
Merijn Offline
Newbie

*

Karma: 0
Posts: 44



Thanks Unzy!
I'm writing all this down to update CWShredder offline.

I'm offline for about a week more, since I've just moved - the phone company didn't move our line over yet. Just hopped online in our old house (which is rented out so I can't be here all the time) to give a quick update.

-----

A link to a new CWShredder beta (the last variant known to it is CWS.Svcinit, so it's about 5 variants behind) that might help some people:
http://www.spywareinfo.com/~merijn/files/beta/CWShredder.exe
Logged
« Reply #2 on: October 15, 2003, 02:13:55 »
Unzy
Guest

Good job Merijn! Smile

Thanks Thumbs Up

Cheers,
Logged
« Reply #3 on: October 30, 2003, 02:42:00 »
Unzy
Guest

One new variant to add :

WinLink.dll

It's a WinShow lookalike and they appear to popup side by side as BHO's.

Creates a WinLink folder in the applications data directory, just as there was a WinShow folder.

as seen HERE

Cheers,
Logged
« Reply #4 on: October 30, 2003, 02:53:41 »
Metallica Offline
Global Moderator WWW

Karma: 4
Posts: 4840



Thanks Unzy,

Which reminds me, there is one more line to look out for that is CWS:

O4 - HKLM\..\Run: [Windows Shell Library Loader] load shell.dll /c /set -- by windows setup --

As seen here: http://forums.spywareinfo.com/index.php?showtopic=15219

Not sure what exactly it does, but fixing it in HijackThis is enough to make it go away.

Pieter
Logged

« Reply #5 on: October 30, 2003, 07:35:40 »
Unzy
Guest

Thanx Pieter Thumbs Up
Logged
« Reply #6 on: November 03, 2003, 06:53:59 »
Unzy
Guest

Possible new CWS variant :

Hacks the URL SearchHook of internet explorer (mailto - type) so that any mistyped/starting without www URLs entered into the IE Address bar are redirected.  

R3 - URLSearchHook: MailTo Class - {01A9EB7D-69BC-11D2-AB2F-204C4F4F5020} - C:\WINDOWS\System32\astctl32.ocx

as seen HERE


After further investigation, it is definately a CWS-variant :

the CLSID is the same as the one of the DNSRelay hijack :

R3 - URLSearchHook: MailTo Class - {01A9EB7D-69BC-11D2-AB2F-204C4F4F5020} - C:\WINDOWS\System32\astctl32.ocx

R3 - URLSearchHook: MailTo Class - {01A9EB7D-69BC-11D2-AB2F-204C4F4F5020} - C:\WINDOWS\System32\dnsrelay.dll

Cheers,
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« Reply #7 on: November 07, 2003, 00:32:10 »
Metallica Offline
Global Moderator WWW

Karma: 4
Posts: 4840



Another CWS variant:

O4 - HKCU\..\Run: [ld] C:\WINDOWS\ld.exe

As found here: http://forums.spywareinfo.com/index.php?showtopic=16004&st=15&

And a warning:

On some systems removing the DReplace BHO with CWShredder has caused the systems to become unbootable.
For now we assume the built-in unregister of the .dll has been corrupted.

Please use BHODemon to disable the BHO, untill we learn more about this issue.
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« Reply #8 on: November 09, 2003, 07:45:40 »
Jackb Offline
Full Member

***

Karma: 0
Posts: 138



Here is the fix for the DReplace.dll BHO (thanks freeatlast  Wink )

First do this please.
Download this: http://TomCoyote.org/downloads/DreplaceFix.reg
Double-click DreplaceFix.reg and answer Yes.

Then close all IE windows and delete the file C:\WINDOWS\SYSTEM\DREPLACE.DLL

Failure to do this first can have very bad results on Win ME or Win98 systems!
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« Reply #9 on: November 09, 2003, 07:48:16 »
Unzy
Guest

Thanks so much for stepping in Jackb Thumbs Up

fal! you own Smile

:kiss:

Cheers,
Logged
« Reply #10 on: November 09, 2003, 08:58:45 »
Metallica Offline
Global Moderator WWW

Karma: 4
Posts: 4840



Another CWS variant:

O4 - HKCU\..\Run: [AddClass] C:\WINDOWS\AddClass.exe

Hijacking to rightfinder.net
Logged

« Reply #11 on: November 09, 2003, 16:14:59 »
Unzy
Guest

Updated version of CWSHREDDER :

http://www.spywareinfo.com/~merijn/files/cwshredder.zip

This corrects a major problem with fixing DReplace.dll in Windows98 Gold, Windows98 SE, and Windows ME.

Cheers,
Logged
« Reply #12 on: November 11, 2003, 00:53:11 »
Metallica Offline
Global Moderator WWW

Karma: 4
Posts: 4840



More CWS news:

O2 - BHO: (no name) - {1F48AA48-C53A-4E21-85E7-AC7CC6B5FFB1} - C:\WINDOWS\MSEJDB.DLL
as found here: http://www.net-integration.net/cgi-bin/forum/ikonboard.cgi?;act=ST;f=32;t=6972;st=0;r=1;&
and here:
http://forums.spywareinfo.com/index.php?showtopic=16535

filename ms(+4 random letters).dll

Very similar (maybe even the same) CLSID is used by ToolbarCC, but these are normally found in a Temp folder.

Regards,

Pieter
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« Reply #13 on: November 17, 2003, 00:18:54 »
Metallica Offline
Global Moderator WWW

Karma: 4
Posts: 4840



New CWS variants:

O2 - BHO: Microsoft SearchWord - {79369D5C-2903-4b7a-ADE2-D5E0DEE14D24} - C:\Documents and Settings\Corey\Application Data\SearchWord.dll

O4 - HKLM\..\Run: [Win64 Compatibility Check] load win64.drv /c /set -- by windows setup --

Both have been added to CWShredder in the meantime.
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« Reply #14 on: November 19, 2003, 02:27:11 »
Metallica Offline
Global Moderator WWW

Karma: 4
Posts: 4840



And another one:
O2 - BHO: Microsoft SearchWord - {79369D5C-2903-4b7a-ADE2-D5E0DEE14D24} - C:\DOCUME~1\Danny\APPLIC~1\MICROS~1\Office\Word10.dll

Example: http://forums.spywareinfo.com/index.php?showtopic=17627

Removal seems to be a problem, will keep you posted.
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