Home Articles Spyware Research Support Scan Now Purchase F.A.Q.

Trojan/BHO/Backdoor/CWS

Alias: Trj/Bookmark.B, Trojan.Win32.StartPage.bn, Win32/Startpage.Y!Trojan, Trojan.Win32.Madise.a, Win32/StartPage.DF trojan, CWS

Description: Trojan/BHO/Backdoor/CWS is the most widely known and the most annoying browser hijacker. It distributes itself by exploiting security holes in older or unpatched version of Microsoft Internet Explorer. Trojan/BHO/Backdoor/CWS has many variations, each of them with its own performance and actions.

Threat type:

BHO - A Browser Helper Object (BHO) is a software application that runs automatically whenever you start Internet Explorer. Browser Helper Objects are typically installed by other programs such as toolbar accessories and can track internet usage, create popup windows, display additional information on a viewed page and collect information that is transmitted by you over the internet. Malicious software that exploits this technology can replace banner advertisements with other ads, monitor your actions, change your home page, etc.

Backdoor - A Backdoor is an undocumented or secret means that can be used to obtain unauthorized access to your computer, or a malicious program that uses such a means to penetrate a computer system. Backdoor applications exploit vulnerabilities of installed programs or operating system and allow attackers to gain control over your computer system. Backdoor works in the background and hides from the user. It is always a high security risk.

Dialer - A Dialer is a software application that dials long distance phone numbers. Dialers modify your dial-up settings and make very expensive long distance phone calls without user's permission. The user will be billed for the time used. Dialer authors share the revenues shady long distance providers.

Downloader - A Downloader is a software application or part of the program which is designed to retrieve (download) and install additional files from the Internet. Malware programs often include Downloaders which allow the Malware to continually update themselves, thereby eluding detection.

Dropper - A Dropper is a software application or part of the program which is designed to install hostile code onto the system of the targeted computer. Usually, a Dropper comes bundled as part of a virus or trojan.

Hijacker - A Hijacker is a software application that takes control of your browser's settings. Usually it changes your home page and redirects it to some unknown site or modifies your search settings. It prevents you from changing back your browser's settings. An infected browser usually operates much slower.

Homepage Hijacker - A Homepage Hijacker is a software application that takes control over your browser's settings. Usually it changes your home page and redirects it to some other site or modifies your search settings. It prevents you to change browser's settings. In such hijacks, your browser may operate normally, but be much slower.

Nuker - A Nuker is a software application that is designed to disable user's computer. It may cause damage to the file system, windows registry, key files, system files, etc.

Toolbar - A Toolbar is a group of buttons that performs different tasks. Unwanted toolbars are usually installed by adware programs that try to send users to their paying advertisers.

Trojan - A Trojans or Trojan Horse is any programs that installs itself secretly, quite often with sinister intent. Once installed, the trojan author (hacker) can gain complete control of the infected PC. Trojans are usually designed to steal sensitive information and/or destroy the system. Trojans can be distributed as unsolicited email attachments, or bundled with freeware and shareware programs.

Advice: Remove This is a very high risk threat and should be removed immediately as to prevent harm to your computer and / or to protect your privacy.

Detection:
SpyNoMore removes Trojan/BHO/Backdoor/CWS: Yes

Threat risk: Very High Risk

Extremely dangerous malware. Uses stealth installation, randomly named entries and has the capability to self update or resurrect after incomplete removal. Almost impossible to remove manually. Category mostly consists of trojans and spyware.

Symptoms:

Trojan/BHO/Backdoor/CWS protects itself from security software.

Trojan/BHO/Backdoor/CWS hides from the user and stays resident in background.

Trojan/BHO/Backdoor/CWS displays commercial advertisements.

Trojan/BHO/Backdoor/CWS changes browser settings.

Trojan/BHO/Backdoor/CWS connects itself to the internet.

Trojan/BHO/Backdoor/CWS may install other software.

Trojan/BHO/Backdoor/CWS Signature Details: The following information includes some of the standard signatures associated with this spyware threat. Please do not attempt to manually remove these items from your computer; Removing these items incorrectly or partially can cause your computer to experience critical errors, prevent your computer from restarting or cause loss of Internet connectivity. Should you be infected with Trojan/BHO/Backdoor/CWS, you can clean your computer by downloading SpyNoMore now.

Running Process Signatures:
N/A

File Signatures:

%WINDOWS%\system32\googlems.dll
%PROFILE%\desktop\hijackthis\backup-20040410-201416-150.dll
%WINDOWS%\system\mgs_32.dll
%WINDOWS%\system32\dxm8vb.dll
%WINDOWS%\system\services.exe
c:\link.exe
%WINDOWS%\system32\hlmk.dll
%WINDOWS%\system32\winres.dll
%WINDOWS%\dpe.dll
%WINDOWS%\system32\dreplace.dll
%WINDOWS%\system32\mid.dll
%WINDOWS%\system32\crxa.exe
%WINDOWS%\navext.dll
%WINDOWS%\system32\bpln.dll
%WINDOWS%\system\dnserr.dll
%WINDOWS%\system\word10.dll
%WINDOWS%\system32\gejafa.dll
%WINDOWS%\system\winlink.dll
%WINDOWS%\system\sys_ext.dll
%WINDOWS%\system32\mssearch.dll
%WINDOWS%\system32\searchaddon.dll
%PROFILE%\desktop\hijackthis\backup-20040412-154855-548.dll
%WINDOWS%\system32\opc.dll
%WINDOWS%\web\tips.ini
%WINDOWS%\system32\msiesh.dll
%WINDOWS%\system\mssearch.dll
%WINDOWS%\system\wcadw.dll
%WINDOWS%\system32\gln.dll
%WINDOWS%\system32\jehmbyxrubdb.dll
%WINDOWS%\system32\winlink.dll
%WINDOWS%\system\navext.dll
%WINDOWS%\system\submithook.dll
%WINDOWS%\system\msiesh.dll
%WINDOWS%\system32\dnse.dll
%WINDOWS%\system\winres.dll
%WINDOWS%\olehelp.exe
%WINDOWS%\system\toolband.dll
%WINDOWS%\system32\webinfo.dll
%WINDOWS%\system32\navext.dll
%WINDOWS%\system32\pnkeb.dll
%WINDOWS%\system\winspool.exe
%WINDOWS%\system32\wer1306.dll
%WINDOWS%\system32\wcadw.dll
%WINDOWS%\system32\excel10.dll
%PROFILE%\application data\vtoufrezpr.dll
%PROFILE%\desktop\hijackthis\backup-20040415-201903-397.dll
%WINDOWS%\system32\kha.dll
%PROFILE%\desktop\hijackthis\backup-20040415-200002-465.dll
%WINDOWS%\system\excel10.dll
%WINDOWS%\system\autosearch.dll
%WINDOWS%\system32\oifhhio.dll
%WINDOWS%\system32\submithook.dll
%WINDOWS%\system32\mshelper.dll
%WINDOWS%\system\ietoolbar.dll
%WINDOWS%\system32\coolwebsearch-info.dll
%WINDOWS%\system32\dnserr.dll
%WINDOWS%\system\mshelper.dll
%PROFILE%\desktop\hijackthis\backup-20040409-002521-814.dll
%WINDOWS%\system\dnse.dll
%WINDOWS%\system32\iehost34.exe
%WINDOWS%\system32\famcff.dll
%WINDOWS%\system\webinfo.dll
%WINDOWS%\system32\delj.dll
%WINDOWS%\system32\1.00.07.dll
%WINDOWS%\system32\toolband.dll
%WINDOWS%\sys.reg
%WINDOWS%\system\1.00.07.dll
%WINDOWS%\system\coolwebsearch-info.dll
%PROFILE%\desktop\hijackthis\backup-20040411-220816-602.dll
%WINDOWS%\system32\iefeatsl.dll
%WINDOWS%\system32\kncjmlb.dll
%PROFILE%\desktop\hijackthis\backup-20040411-194857-127.dll
%WINDOWS%\system32\word10.dll
%WINDOWS%\system\wer1306.dll
%WINDOWS%\system32\sqlbgb.dll
%WINDOWS%\system\searchaddon.dll
%PROFILE%\desktop\hijackthis\backup-20040412-170335-416.dll
%WINDOWS%\system32\ietoolbar.dll
%PROFILE%\desktop\hijackthis\backup-20040409-002521-543.dll
%WINDOWS%\system32\iehost.exe
%PROFILE%\desktop\hijackthis\backup-20040406-234439-493.dll
%WINDOWS%\kk8pwxm634.exe
%WINDOWS%\system\iefeatsl.dll
%WINDOWS%\system32\sys_ext.dll
%WINDOWS%\system\dreplace.dll
%WINDOWS%\system\googlems.dll
%PROFILE%\desktop\hijackthis\backup-20040409-002521-581.dll
c:\docume~1\owner\locals~1\temp\sp.html
%WINDOWS%\system32\gegnba.dll
%WINDOWS%\system32\oipa.dll

Registered Dll (Dynamic Link Library) Signatures:
N/A

Folder Signatures:
%WINDOWS%\sysbj
%PROFILE%\application data\wingf
%WINDOWS%\winfj

Registry Signatures:

HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{7b32f6dc-2751-4251-a011-7ce9e88e984c}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{1f48aa48-c53a-4e21-85e7-ac7cc6b5ffb2}
HKCR\clsid\{7b32f6dc-2751-4251-a011-7ce9e88e984c}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{cf021f40-3e14-23a5-cba2-717765721306}
HKLM\software\classes\clsid\{44e93f27-f60b-4352-9a7d-ee4a10214f55}
HKCR\getpostlog.getpostlog.1
HKCR\clsid\{e3eebbe8-9cab-4c76-b26a-747e25ebb4c6}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{b847676d-72ac-4393-bfff-43a1eb979352}
HKLM\software\classes\clsid\{bc97b254-b2b9-4d40-971d-78e0978f5f26}
HKCR\clsid\{91982485-9a26-4ce7-91cf-73867a319aaa}
HKLM\software\classes\clsid\{e2ddf680-9905-4dee-8c64-0a5de7fe133c}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{b847676d-72ac-4393-bfff-43a1eb979352}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{00110011-4b0b-44d5-9718-90c88817369b}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{6cc1c91a-ae8b-4373-a5b4-28ba1851e39a}
HKCR\clsid\{ccd82dfe-6ca4-4aac-a82b-8c57a8d9ff24}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{30192f8d-0958-44e6-b54d-331fd39ac959}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{5d70127d-73f6-4f1c-92f3-4088e968c5d6}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{a9a674bf-771f-42e5-a440-d20dda85a862}
HKCR\clsid\{d3c4dbc7-bcd0-4864-88d3-7b93c73b515a}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{00110011-4b0b-44d5-9718-90c88817369b}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{587dbf2d-9145-4c9e-92c2-1f953da73773}
HKLM\software\classes\clsid\{749cc722-9118-4ba6-b987-3c466886dcdb}
HKLM\software\classes\clsid\{2e9caff6-30c7-4208-8807-e79d4ec6f806}
HKCR\typelib\{a65529dd-4833-4784-a594-205f4a50267a}
HKLM\software\classes\clsid\{e3eebbe8-9cab-4c76-b26a-747e25ebb4c6}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{150fa160-130d-451f-b863-b655061432ba}
HKLM\software\classes\clsid\{2d38a51a-23c9-48a1-a33c-48675aa2b494}
HKCR\clsid\{5321e378-ffad-4999-8c62-03ca8155f0b3}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{2e9caff6-30c7-4208-8807-e79d4ec6f806}
HKCR\clsid\{806418df-4a40-43dc-bc15-31439276c045}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{086ae192-23a6-48d6-96ec-715f53797e85}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{ff1bf4c7-4e08-4a28-a43f-9d60a9f7a880}
HKCR\clsid\{a55581dc-2cdb-4089-8878-71a080b22342}
HKCR\clsid\{6cc1c91a-ae8b-4373-a5b4-28ba1851e39a}
HKCR\clsid\{086ae192-23a6-48d6-96ec-715f53797e85}
HKLM\software\classes\clsid\{834261e1-dd97-4177-853b-c907e5d5bd6e}
HKCR\clsid\{c9b0d3dc-dc2b-4a17-8e34-02cd4c1e573f}
HKCR\clsid\{1f48aa48-c53a-4e21-85e7-ac7cc6b5ffb1}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{fd9bc004-8331-4457-b830-4759ff704c22}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{2e9caff6-30c7-4208-8807-e79d4ec6f806}
HKCR\clsid\{3566f990-36c0-4797-b74a-b2c6da46fb32}
HKLM\software\classes\clsid\{587dbf2d-9145-4c9e-92c2-1f953da73773}
HKLM\system\currentcontrolset\services\11fßä#·ºÄÖ`i
HKCR\clsid\{8003a1f9-de91-4eb2-b97c-fe3a37db0cab}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{3b749197-9826-43d0-b8f6-a72971443c61}
HKCR\clsid\{ff1bf4c7-4e08-4a28-a43f-9d60a9f7a880}
HKCR\clsid\{2a532036-9174-4b3c-b301-7805e925cf8a}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{086ae192-23a6-48d6-96ec-715f53797e85}
HKCR\clsid\{44e93f27-f60b-4352-9a7d-ee4a10214f55}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{c9b0d3dc-dc2b-4a17-8e34-02cd4c1e573f}
HKCR\clsid\{1e1b2879-88ff-11d2-8d96-d7acac95951f}
HKLM\software\classes\clsid\{fd9bc004-8331-4457-b830-4759ff704c22}
HKCR\clsid\{b847676d-72ac-4393-bfff-43a1eb979352}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{e7afff2a-1b57-49c7-bf6b-e5123394c970}
HKLM\software\classes\clsid\{00110011-4b0b-44d5-9718-90c88817369b}
HKCR\clsid\{30192f8d-0958-44e6-b54d-331fd39ac959}
HKLM\software\classes\clsid\{086ae192-23a6-48d6-96ec-715f53797e85}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{ff1bf4c7-4e08-4a28-a43f-9d60a9f7a880}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{30192f8d-0958-44e6-b54d-331fd39ac959}
HKCR\clsid\{966c1208-4456-4da1-9934-9a59bd39b7a4}
HKCR\clsid\{5d70127d-73f6-4f1c-92f3-4088e968c5d6}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{a55581dc-2cdb-4089-8878-71a080b22342}
HKCR\clsid\{bc97b254-b2b9-4d40-971d-78e0978f5f26}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{6cc1c91a-ae8b-4373-a5b4-28ba1851e39a}
HKCR\clsid\{b81197b4-4e57-4db6-ae1d-23e49355bb2d}
HKCR\clsid\{79369d5c-2903-4b7a-ade2-d5e0dee14d24}
HKCR\clsid\{664a5b8b-508e-4dd1-89ab-502c91655d2b}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{e2ddf680-9905-4dee-8c64-0a5de7fe133c}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{e7afff2a-1b57-49c7-bf6b-e5123394c970}
HKCR\clsid\{749cc722-9118-4ba6-b987-3c466886dcdb}
HKLM\software\classes\clsid\{1f48aa48-c53a-4e21-85e7-ac7cc6b5ffb2}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{834261e1-dd97-4177-853b-c907e5d5bd6e}
HKCR\clsid\{4b607c1d-43b2-4f6f-b76e-96eb3233bded}
HKCR\clsid\{150fa160-130d-451f-b863-b655061432ba}
HKCR\clsid\{1f48aa48-c53a-4e21-85e7-ac7cc6b5ffb2}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{1f48aa48-c53a-4e21-85e7-ac7cc6b5ffb1}
HKCR\clsid\{834261e1-dd97-4177-853b-c907e5d5bd6e}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{4b607c1d-43b2-4f6f-b76e-96eb3233bded}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{44e93f27-f60b-4352-9a7d-ee4a10214f55}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{91982485-9a26-4ce7-91cf-73867a319aaa}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{664a5b8b-508e-4dd1-89ab-502c91655d2b}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{2d38a51a-23c9-48a1-a33c-48675aa2b494}
HKCR\clsid\{2e9caff6-30c7-4208-8807-e79d4ec6f806}
HKCR\clsid\{2118e38e-d3f9-4036-ba5f-befa51170042}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{79369d5c-2903-4b7a-ade2-d5e0dee14d24}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{806418df-4a40-43dc-bc15-31439276c045}
HKCR\clsid\{a9a674bf-771f-42e5-a440-d20dda85a862}
HKLM\software\classes\clsid\{91982485-9a26-4ce7-91cf-73867a319aaa}
HKCR\clsid\{587dbf2d-9145-4c9e-92c2-1f953da73773}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{79369d5c-2903-4b7a-ade2-d5e0dee14d24}
HKLM\software\classes\clsid\{cf021f40-3e14-23a5-cba2-717765721306}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{1f48aa48-c53a-4e21-85e7-ac7cc6b5ffb1}
HKCR\clsid\{2d38a51a-23c9-48a1-a33c-48675aa2b494}
HKCR\clsid\{15fed902-5051-4d02-9b7a-4fbfd09d28d1}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{150fa160-130d-451f-b863-b655061432ba}
HKCR\clsid\{3b749197-9826-43d0-b8f6-a72971443c61}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{1f48aa48-c53a-4e21-85e7-ac7cc6b5ffb2}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{587dbf2d-9145-4c9e-92c2-1f953da73773}
HKCR\getpostlog.getpostlog
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{2118e38e-d3f9-4036-ba5f-befa51170042}
HKLM\software\classes\clsid\{6cc1c91a-ae8b-4373-a5b4-28ba1851e39a}
HKLM\software\classes\clsid\{79369d5c-2903-4b7a-ade2-d5e0dee14d24}
HKLM\software\classes\clsid\{b847676d-72ac-4393-bfff-43a1eb979352}
HKCR\clsid\{cf021f40-3e14-23a5-cba2-717765721306}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{15fed902-5051-4d02-9b7a-4fbfd09d28d1}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{1e1b2879-88ff-11d2-8d96-d7acac95951f}
HKCR\clsid\{799a370d-5993-4887-9df7-0a4756a77d00}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{ccd82dfe-6ca4-4aac-a82b-8c57a8d9ff24}
HKCR\clsid\{ace9c626-f133-47f8-8c1a-e32f17cb9ed3}
HKCR\ml.iehlprobj
HKCR\clsid\{e7afff2a-1b57-49c7-bf6b-e5123394c970}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{799a370d-5993-4887-9df7-0a4756a77d00}
HKLM\software\classes\clsid\{30192f8d-0958-44e6-b54d-331fd39ac959}
HKCR\ml.iehlprobj.1
HKLM\software\classes\clsid\{1f48aa48-c53a-4e21-85e7-ac7cc6b5ffb1}
HKCR\clsid\{00110011-4b0b-44d5-9718-90c88817369b}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{749cc722-9118-4ba6-b987-3c466886dcdb}
HKCR\software\microsoft\windows\currentversion\explorer\browser helper objects\{2d38a51a-23c9-48a1-a33c-48675aa2b494}
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{cf021f40-3e14-23a5-cba2-717765721306}
HKCR\interface\{7142c3e1-1fe1-4a2a-b882-681dc7db0d30}
HKLM\software\classes\clsid\{ff1bf4c7-4e08-4a28-a43f-9d60a9f7a880}
HKCU\software\gs1
HKLM\software\microsoft\windows\currentversion\explorer\browser helper objects\{ace9c626-f133-47f8-8c1a-e32f17cb9ed3}

SpyNoMore Collected Residual File Signatures:
N/A