Rivon manual removal:
Kill processes:
cro.exe, download.exe, kaspersky_lab.exe, matrix.exe, nod32_fix.exe, rj3_vc1.exe, save_me.exe, sophos_3.89.exe, speed.exe, sp2.exe
Delete registry values:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\download
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\ShowGoButton=no
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\1=services.msc
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\2=gpedit.msc
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\3=msconfig.exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\4=secpol.msc
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\5=sysedit.exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\6=cmd.exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\7=mmc.exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\8=progman.exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\9=ntbackup.exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\10=rsop.msc
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideClock=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoBandCustomize=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoCDBurning=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoChangeStartMenu=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoClose=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoControlPanel=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDisconnect=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFileMenu=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFind=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoNetworkConnections=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoPropertiesMyComputer=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetTaskbar=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSharedDocuments=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSMHelp=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSMMyDocs=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSMMyMusic=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSMMyPictures=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRecentDocsMenu=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoStartMenuMFUprogramsList=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoStartMenuMoreProgram=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoStartMenuNetworkPlaces=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoUserNameInStartMenu=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoViewContextMenu=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoWindowsUpdate=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoWinKeys=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\NoAdminPage=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\NoDevMgrPage=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\NoDispScrSavPage=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\NoDispSettingsPage=1
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\NoProfilePage=1
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoBrowserClose=1
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoBrowserOptions=1
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoFileNew=1
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoFileOpen=1
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoFindFiles=1
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoSelectDownloadDir=1
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDesktop=1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\SystemRestore\DisableSR=1
Delete files:cro.exe, download.exe, kaspersky_lab.exe, matrix.exe, nod32_fix.exe, rj3_vc1.exe, save_me.exe, sophos_3.89.exe, speed.exe, sp2.exe