

You will get popups from Contextual ads by Blueskyadagency, Addestination and Snappyads as well.
Symptoms :
Although its easy to tell whether you have this infection just from using your browser, here are some other symptoms. It drops the following files ( among others ) onto your PC
C:\Program Files\Mozilla Firefox\searchplugins\Yoog.xml
C:\Program Files\Mozilla Firefox\components\nsadzgalore.dll
C:\Program Files\Mozilla Firefox\components\nsadsoftinc.dll
C:\Program Files\Mozilla Firefox\components\nsBrowserOpt.dll
Also if you see any randomly numbered 36 digit file in the following folder
C:\Program Files\mozilla firefox\components
then the infection is present on your machine
eg :
C:\Program Files\mozilla firefox\components\2d459f29-8673-5b62-1b99-d126554a936e.dll
Removal :
- Download OTL to your desktop.
- Double click on the icon to run it. Make sure all other windows ( especially FireFox ) are closed and to let it run uninterrupted.
- Under the Custom Scans/Fixes box at the bottom, paste in the following
:OTL IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www1.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www2.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www3.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www5.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www6.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www7.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www8.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www9.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www10.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www11.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www13.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www14.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www15.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www26.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www27.yoog.com/ IE - HKCU\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://www28.yoog.com/ FF - prefs.js..browser.search.defaulturl: "http://www28.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www28.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www28.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www28.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaultenginename: "Yoog Search" FF - prefs.js..browser.search.defaulturl: "http://www14.yoog.com/search.php?q=" FF - prefs.js..browser.search.selectedEngine: "Yoog Search" FF - prefs.js..keyword.URL: "http://www14.yoog.com/search.php?q=" FF - user.js..browser.search.defaultenginename: "Yoog Search" FF - user.js..browser.search.defaulturl: "http://www14.yoog.com/search.php?q=" FF - user.js..browser.search.selectedEngine: "Yoog Search" FF - user.js..keyword.URL: "http://www14.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www8.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www8.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www8.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www8.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www15.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www15.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www5.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www7.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www7.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www7.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www7.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www13.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www13.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www13.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www13.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www3.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www3.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www3.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www3.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www10.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www10.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www10.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www10.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www11.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www11.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www11.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www11.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www2.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www2.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www2.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www2.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www26.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www26.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www26.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www26.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www5.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www5.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www5.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www5.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www1.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www1.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www1.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www1.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www9.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www9.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www9.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www9.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www6.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www6.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www6.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www6.yoog.com/search.php?q=" FF - prefs.js..browser.search.defaulturl: "http://www27.yoog.com/search.php?q=" FF - prefs.js..keyword.URL: "http://www27.yoog.com/search.php?q=" FF - user.js..browser.search.defaulturl: "http://www27.yoog.com/search.php?q=" FF - user.js..keyword.URL: "http://www27.yoog.com/search.php?q=" FF - user.js..keyword.enabled: true FF - component: c:\program files\mozilla firefox\components\ozunxgvjpnsoioviq.dll FF - component: c:\program files\mozilla firefox\components\rnqbuctnbrd.dll :Files %ProgramFiles%\IEToolbar %ProgramFiles%\Mozilla Firefox\components\nsadzgalore.dll %ProgramFiles%\Mozilla Firefox\components\nsadsoftinc.dll %ProgramFiles%\Mozilla Firefox\components\nsBrowserOpt.dll %ProgramFiles%\Mozilla Firefox\searchplugins\Yoog.xml %ProgramFiles%\Mozilla Firefox\components\nsBrowserDc.dll %ProgramFiles%\Mozilla Firefox\components\nsdcads.dll %APPDATA%\Mozilla\Firefox\Profiles\Yoog Search.xml /s %PROGRAMFILES%\Mozilla Firefox\components\mexmgzdhgnvqilpib.dll %SystemRoot%\system32\mexmgzdhgnvqilpib.dll %PROGRAMFILES%\mozilla firefox\components\zvakwomxas.dll %SystemRoot%\system32\zawcukanoit.exe %SystemRoot%\System32\lkvwtxiako.dll %SystemRoot%\system32\zvakwomxas.dll %SystemRoot%\system32\dgbzetddjouspgzqz.dll %SystemRoot%\System32\nsn*.dll %SystemRoot%\nmwi*.exe %SystemRoot%\system32\nsx*.dll %SystemRoot%\system32\nsj*.dll %SystemRoot%\system32\nsv*.dll %systemroot%\system32\nsf*.dll %systemroot%\mutfp*.exe %systemroot%\obwu*.exe %systemroot%\ntaj*.exe %systemroot%\nwuhr*.exe %systemroot%\System32\nss*.dll %SystemRoot%\system32\*-uninst.exe %SystemRoot%\system32\*-remove.exe %systemroot%\system32\nsr*.dll %systemroot%\reax*.exe %systemroot%\giptf*.exe %systemroot%\tkoo*.exe %systemroot%\axjth*.exe %systemroot%\ertbg*.exe %systemroot%\jnnmp*.exe %systemroot%\bprxe*.exe %systemroot%\xwisg*.exe %systemroot%\jpng*.exe %systemroot%\fhsv*.exe %systemroot%\dfmqc*.exe %systemroot%\wgfp*.exe %systemroot%\gweq*.exe %systemroot%\pxwis*.exe %systemroot%\fcvmq*.exe %systemroot%\System32\hfkxlchuhv.dll %systemroot%\System32\nst*.dll %systemroot%\dmkv*.exe %systemroot%\system32\nseE*.dll %systemroot%\System32\nsk*.dll %systemroot%\system32\mexmgzdhgnvqilpib.dll %systemroot%\system32\ibgyxrpdcrlay.dll %systemroot%\system32\ympweffizcodl.exe %systemroot%\kdiue732.txt %systemroot%\system32\jmcvcflmiugsrfia.exe %PROGRAMFILES%\VnrBlock %PROGRAMFILES%\iCheck %systemroot%\tvilp*.exe %systemroot%\itqot*.exe %systemroot%\system32\wskuofzpxkxdb.exe %systemroot%\tutvo*.exe %systemroot%\hsep*.exe %systemroot%\system32\pihtwcdtsghokinvg.dll %systemroot%\system32\juluypfvhofv.dll %systemroot%\system32\nsl*.dll %systemroot%\system32\gchnamepziopknko.dll %systemroot%\system32\pihtwcdtsghokinvg.dll %systemroot%\system32\yprhhrqubcbujp.exe %systemroot%\system32\ucicolizrhssr.dll %systemroot%\system32\hiwdrlnk.exe %systemroot%\System32\nsg*.dll %systemroot%\System32\jifgoojjyhmkthcfk.dll %USERPROFILE%\Start Menu\Programs\Startup\runit_32.lnk %PROGRAMFILES%\runit %systemroot%\System32\hokfklenusuebapl.dll %systemroot%\System32\drsqpwimruypmc.dll %systemroot%\System32\nsxE*.dll %ProgramFiles%\Mozilla Firefox\components\drsqpwimruypmc.dll %ProgramFiles%\Mozilla Firefox\components\hokfklenusuebapl.dll %systemroot%\System32\kxzubfhuxew.exe %systemroot%\System32\dsygtypzdloyoxivg.exe %systemroot%\System32\qdfggdhhofhhylbfx.exe %systemroot%\system32\spkr.exe %systemroot%\system32\winset.ini %systemroot%\ajis*.exe %systemroot%\cdmb*.exe %systemroot%\vsoei*.exe %systemroot%\bkit*.exe %systemroot%\okjo*.exe %systemroot%\xwaro*.exe %systemroot%\ojxde*.exe %systemroot%\system32\spkr.exe %systemroot%\system32\winset.ini %systemroot%\system32\cabine.dll %systemroot%\system32\rnqbuctnbrd.dll %systemroot%\system32\nsy*.dll %ProgramFiles%\mozilla firefox\components\ozunxgvjpnsoioviq.dll %ProgramFiles%\mozilla firefox\components\rnqbuctnbrd.dll %systemroot%\system32\nsa*.dll %systemroot%\system32\ebrhmlpemih.dll %systemroot%\system32\sfirpzmipv.dll %systemroot%\system32\dkwjlgwkreqy.exe %systemroot%\system32\nsm*.dll %ProgramFiles%\mozilla firefox\components\????????-????-????-????-????????????.dll %systemroot%\System32\????????-????-????-????-????????????.exe :Reg [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{b0d2e786-354b-fea1-8de7-883e7524e6d2}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{b2fe5f61-3eb4-4e22-7c84-f52993635f52}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f20e8516-7d08-c1e3-e689-96d39bb42220}] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Toolbar] "{ad7781e6-d262-25f8-389d-967a6d974748}"=- [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{314506e6-db9d-d679-08b6-c16f288ad5c9}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AC4A7813-6844-2FF3-D929-DCB471E346AB}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{77cab7d9-e377-ddfc-7d69-cd9cab0e10ff}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B8620A38-0404-12B1-FA60-5A0C1FB1C6A5}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B188763A-902C-98E9-780E-DAA0BF25BBFD}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4c18a538-eb55-9029-1fdb-37769fbefee2}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{314506e6-db9d-d679-08b6-c16f288ad5c9}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AC4A7813-6844-2FF3-D929-DCB471E346AB}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{58b39041-fe10-d989-5b61-50d6fe664b48}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{994b5fb4-0103-44a6-b6b3-c73572b362bc}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{c8217294-fa91-dd4d-ba56-4561001b63c8}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{670b520c-3f08-4d72-94a5-047740c07766}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{78f9a905-789c-d4b1-d5d6-336920981691}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{78ff6579-e7fe-8225-43c1-3fe7864edc62}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e8217e11-e93b-fc21-7455-fea561f86263}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nlhbxrcsmhodrzf] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\iztcfgmowgboporyl] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0b5b5ca3-3bec-e287-841a-52b690c5641a}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8415b27c-0bd3-dcf3-6c9b-354472fd2f31}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{a09d0f21-af0a-aba8-16d7-6b8ffabcb6a0}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{5c7368fb-d033-ce70-4757-e3b62547b82c}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{667675cf-b246-41eb-a1c4-5d8c6231bd49}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{733716e1-76d2-4003-ac39-845281c0ef85}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f7e5f38b-3105-3aa1-4519-bd2d7e219a76}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{031502ac-155a-922d-031c-bcd735a47512}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{040dc938-3620-9395-8810-c742263372c8}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{d685ddf2-6463-fd20-4a25-97da85835f20}] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Toolbar] "{1bd3b92c-ee2e-f53d-24ca-4244ab728c8a}"=- :Commands [purity] [emptytemp] [Reboot]
- Then click the Run Fix button at the top
- Let the program run unhindered, reboot the PC when it is done
- The fix should only take a few minutes to run. If it appears to freeze then try it again.
Your computer should now be clean from Yoog Search and its friends. If you find it is still present then you need to visit the Malware Removal forum to ensure its complete removal. This can be due to new variants or other infections being present on your machine.
If this guide fixes your machine, then please read my guide on how to prevent malware and about safe computing here
If you have had any issues or problems with this fix please let us know.
Edited by Rorschach112, 11 February 2010 - 07:25 AM.