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The file BHO.DLL is identified as the Trojan Program that is used for stealing bank information and users passwords.
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BHO.DLL Information and Removal:
%APPDATA%\FIREFOX@MOZILLA.COM\CONTENT\OVERLAY.XUL
%APPDATA%\FIREFOX@MOZILLA.COM\CONTENT\OVERLAY.JS
%APPDATA%\FIREFOX@MOZILLA.COM\CONTENT\SETTINGS.JS
%APPDATA%\IE\SETTINGS.DAT