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Contraviro is a rogue anti-spyware program known to carry out many misleading tactics to tempt purchase of a licensed version of Contraviro. One of Contraviro’s main tactics to fulfill this objective is by alerting computer users of a computer parasite through popup messages and system scans. Contraviro is similar to the rogue Unvirex which could have been created by the same group that promotes the Contraviro application.

Contraviro may come from a Trojan infection that could have been downloaded onto a computer users system through a malicious site. Once infected with such a Trojan, it can then automatically install Contraviro without asking for permission from the computer administrator. Manually removing Contraviro may prove to be difficult because Contraviro is known to install DLL files within the system leaving other unknown files to be found and deleted.

Automated Detection for Contraviro

Contraviro Manual Removal Instructions

Stop Contraviro system processes:

Contraviro.exe
ContraviroInstall[1].exe
%Program Files%\\Contraviro\\uninstall.exe
%Program Files%\\Contraviro\\Contraviro.exe

Unregister Contraviro DLLs:

hjengine.dll
%Program Files%\\Contraviro\\siglsp.dll
%Program Files%\\Contraviro\\shellext.dll
%Program Files%\\Contraviro\\pthreadVC2.dll
%Program Files%\\Contraviro\\msvcr71.dll
%Program Files%\\Contraviro\\msvcp71.dll
%Program Files%\\Contraviro\\MFC71ENU.DLL
%Program Files%\\Contraviro\\MFC71.dll
%Program Files%\\Contraviro\\IEAddon.dll
%Program Files%\\Contraviro\\hjengine.dll

Remove Contraviro files:

Register Contraviro.lnk
How to Register Contraviro.lnk
Contraviro.lnk
Contraviro.exe
ContraviroInstall[1].exe
hjengine.dll
Contraviro
%UserProfile%\\Application Data\\Microsoft\\Internet Explorer\\Quick Launch\\Contraviro.lnk
%Documents and Settings%\\All Users\\Start Menu\\Programs\\Contraviro\\Register Contraviro.lnk
%Documents and Settings%\\All Users\\Start Menu\\Programs\\Contraviro\\How to Register Contraviro.lnk
%Documents and Settings%\\All Users\\Start Menu\\Programs\\Contraviro\\Contraviro.lnk
%Documents and Settings%\\All Users\\Start Menu\\Programs\\Contraviro.lnk
%Documents and Settings%\\All Users\\Desktop\\Contraviro.lnk
%Documents and Settings%\\All Users\\Start Menu\\Programs\\Contraviro
%Program Files%\\Contraviro\\uninstall.exe
%Program Files%\\Contraviro\\siglsp.dll
%Program Files%\\Contraviro\\shellext.dll
%Program Files%\\Contraviro\\pthreadVC2.dll
%Program Files%\\Contraviro\\msvcr71.dll
%Program Files%\\Contraviro\\msvcp71.dll
%Program Files%\\Contraviro\\MFC71ENU.DLL
%Program Files%\\Contraviro\\MFC71.dll
%Program Files%\\Contraviro\\main.cvd
%Program Files%\\Contraviro\\IEAddon.dll
%Program Files%\\Contraviro\\hjengine.dll
%Program Files%\\Contraviro\\Drvfltip.sys
%Program Files%\\Contraviro\\daily.cvd
%Program Files%\\Contraviro\\Contraviro.exe
%Program Files%\\Contraviro

Remove Contraviro registry values:

Contraviro
HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run "Contraviro"
HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\User Agent\\Post Platform "Contraviro"
HKEY_CURRENT_USER\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon "Shell"
HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Contraviro
HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Browser Helper Objects\\{CCB5551D-8594-4999-85F9-1E3EABCB95AC}
HKEY_LOCAL_MACHINE\\SOFTWARE\\Contraviro
HKEY_CLASSES_ROOT\\TypeLib\\{3ED0E410-5C8E-47B6-A75D-D10B886E903C}
HKEY_CLASSES_ROOT\\Interface\\{5B184B9D-B7BD-4FEA-8D1F-5E27182206A5}
HKEY_CLASSES_ROOT\\Folder\\shellex\\ContextMenuHandlers\\antivirus_contextscan
HKEY_CLASSES_ROOT\\Drives\\shellex\\ContextMenuHandlers\\antivirus_contextscan
HKEY_CLASSES_ROOT\\Drive\\shellex\\ContextMenuHandlers\\antivirus_contextscan
HKEY_CLASSES_ROOT\\CLSID\\{CCB5551D-8594-4999-85F9-1E3EABCB95AC}
HKEY_CLASSES_ROOT\\CLSID\\{08EEC6AD-7486-487F-89B7-5A3716DDAE14}
HKEY_CLASSES_ROOT\\AppID\\IEAddon.DLL
HKEY_CLASSES_ROOT\\AppID\\{C0E56AC2-9F72-436E-B6E7-AEC28AF9E4EB}
HKEY_CLASSES_ROOT\\*\\shellex\\ContextMenuHandlers\\antivirus_contextscan

Important Disclaimer

Contraviro is related to:

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This entry was posted on Monday, June 22nd, 2009 at 4:29 pm and is filed under Rogue Anti-Spyware Program. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.