Trojan.Click2.33900

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '%PROGRAM_FILES%\Coopen\Coopen.scr'

Creates or modifies the following files:

%HOMEPATH%\Start Menu\Programs\Startup\CoopenІҐ·ЕЖч.lnk

Malicious functions:

Creates and executes the following:

%TEMP%\coopen_setup_100029.exe
%TEMP%\info.exe

Sets a new unauthorized home page for Windows Internet Explorer.

Modifies file system :

Creates the following files:

%PROGRAM_FILES%\Coopen\Resource\res\BMP\Myphoto.bmp
%PROGRAM_FILES%\Coopen\Resource\res\BMP\cancel.bmp
%PROGRAM_FILES%\Coopen\Resource\res\BMP\MyWallpaper.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\SkinNormal.ini
%PROGRAM_FILES%\Coopen\Resource\res\BMP\MyShare.bmp
%PROGRAM_FILES%\Coopen\Resource\res\BMP\close.bmp
%PROGRAM_FILES%\Coopen\image\Wallpaper\local wallpaper\DefaultCoopenWallpaper.jpg
%PROGRAM_FILES%\Coopen\image\Wallpaper\local wallpaper\ModeAList.ini
%PROGRAM_FILES%\Coopen\Coopen.scr
%PROGRAM_FILES%\Coopen\Resource\res\BMP\play.bmp
%PROGRAM_FILES%\Coopen\Templete\DefaultCoopenWallpaper.jpg
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Separator.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_ScreenSaver.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_Setting.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_Prev.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_Pause.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_Play.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_Weblogo.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Progress_download.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Progress_download1.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Notify_Close.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_next.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Notify_BG.bmp
%PROGRAM_FILES%\Coopen\image\Wallpaper\coopen wallpaper\DefaultCoopenWallpaper.jpg
%PROGRAM_FILES%\Coopen\conf\%USERNAME%.ini
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\partnerhp[1].aspx
%PROGRAM_FILES%\Coopen\conf\All Users.ini
%PROGRAM_FILES%\Coopen\temp.html
%PROGRAM_FILES%\Coopen\uninst.exe
%TEMP%\nsc4.tmp\PartnerDlg.ini
%APPDATA%\Microsoft\Internet Explorer\Quick Launch\?o¶? Internet Explorer a?AA??.lnk
%APPDATA%\Microsoft\Internet Explorer\Quick Launch\Coopen.lnk
%HOMEPATH%\Desktop\Coopen.lnk
%TEMP%\nsc4.tmp\InstallOptions.dll
%TEMP%\nsc4.tmp\InstallFinishDlg.ini
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\coopenEntry[1].ashx
%PROGRAM_FILES%\Coopen\image\Photo\local Photo\ModeBList.ini
%PROGRAM_FILES%\Coopen\image\Illustrated\coopen illustrated\image_109675\DefaultCoopenWallpaper.jpg
%PROGRAM_FILES%\Coopen\image\Photo\local Photo\B_1.jpg
%PROGRAM_FILES%\Coopen\image\Wallpaper\coopen wallpaper\PicList.ini
%PROGRAM_FILES%\Coopen\image\Photo\local Photo\B_0.jpg
%PROGRAM_FILES%\Coopen\image\Share\coopen share\image_100\B_0.jpg
%HOMEPATH%\Start Menu\Programs\Coopen\Р¶ФШ.lnk
%TEMP%\nsc4.tmp\inetc.dll
%HOMEPATH%\Start Menu\Programs\Coopen\CoopenІҐ·ЕЖч.lnk
%PROGRAM_FILES%\Coopen\image\Share\coopen share\image_100\B_1.jpg
%PROGRAM_FILES%\Coopen\image\Share\coopen share\image_100\PicList.ini
%PROGRAM_FILES%\Coopen\CoopenModeD.Config
%PROGRAM_FILES%\Coopen\CoopenDeskIcon.cop
%PROGRAM_FILES%\Coopen\CoopenModeD.cop
%PROGRAM_FILES%\Coopen\CoopenModeC.cop
%PROGRAM_FILES%\Coopen\CoopenModeC.Config
%PROGRAM_FILES%\Coopen\CoopenDeskIcon.Config
%PROGRAM_FILES%\Coopen\CoopenDownloader.Config
%PROGRAM_FILES%\Coopen\CoopenPlayer.cop
%PROGRAM_FILES%\Coopen\CoopenDownloader.cop
%PROGRAM_FILES%\Coopen\Coopen.exe
%PROGRAM_FILES%\Coopen\CoopenAir.exe
%PROGRAM_FILES%\Coopen\CoopenModeB.Config
%TEMP%\nsm3.tmp
%TEMP%\nsc4.tmp\System.dll
%TEMP%\info.exe
%TEMP%\abc.ini
%TEMP%\coopen_setup_100029.exe
%TEMP%\nsc4.tmp\ioSpecial.ini
%PROGRAM_FILES%\Coopen\CoopenModeA.Config
%PROGRAM_FILES%\Coopen\CoopenModeB.cop
%PROGRAM_FILES%\Coopen\CoopenModeA.cop
%TEMP%\nsc4.tmp\modern-wizard.bmp
%TEMP%\nsc4.tmp\KillProcDLL.dll
%PROGRAM_FILES%\Coopen\CoopenPlayer.Config
%PROGRAM_FILES%\Coopen\Templete\ModeB_logo.jpg
%PROGRAM_FILES%\Coopen\Templete\CoopenPhoto.jpg
%PROGRAM_FILES%\Coopen\Templete\ModeB.tpl
%PROGRAM_FILES%\Coopen\conf\PluginConfig.ini
%PROGRAM_FILES%\Coopen\Templete\ModeC.tpl
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Background.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_ModeMenu.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_ModeSel.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_IconShow.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_Close.bmp
%PROGRAM_FILES%\Coopen\Resource\SkinNormal\Button_IconHide.bmp
%PROGRAM_FILES%\Coopen\conf\ModeAChannelSetup.txt
%PROGRAM_FILES%\Coopen\CoopenClient.cop
%PROGRAM_FILES%\Coopen\CoopenClient.Config
%PROGRAM_FILES%\Coopen\CoopenUpdate.cop
%PROGRAM_FILES%\Coopen\CoopenUI.cop
%PROGRAM_FILES%\Coopen\CoopenUI.Config
%PROGRAM_FILES%\Coopen\CoopenActiveControl93.dll
%PROGRAM_FILES%\Coopen\conf\ModeAChannelListReal.txt
%PROGRAM_FILES%\Coopen\conf\ModeASelectChannel.txt
%PROGRAM_FILES%\Coopen\conf\ModeAChannelList.txt
%PROGRAM_FILES%\Coopen\licence.txt
%PROGRAM_FILES%\Coopen\conf\ChannelListReal.txt