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Trojan.MulDrop5.2766
Added to the Dr.Web virus database:
2013-11-08
Virus description added:
2013-11-08
Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
%ALLUSERSPROFILE%\Start Menu\Programs\Startup\moviemk.exe.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Startup\PINBALL.EXE.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Startup\updater.exe.lnk
Creates the following services:
[<HKLM>\SYSTEM\ControlSet001\Services\ccosmSrv] 'Start' = '00000002'
[<HKLM>\SYSTEM\ControlSet001\Services\LinkGoogle] 'Start' = '00000002'
Substitutes the following executable system files:
<SYSTEM32>\dllcache\wabmig.exe with <SYSTEM32>\dllcache\wabmig.exe.new
<SYSTEM32>\dllcache\msimn.exe with <SYSTEM32>\dllcache\msimn.exe.new
<SYSTEM32>\dllcache\conf.exe with <SYSTEM32>\dllcache\conf.exe.new
<SYSTEM32>\dllcache\mplayer2.exe with <SYSTEM32>\dllcache\mplayer2.exe.new
<SYSTEM32>\dllcache\pinball.exe with <SYSTEM32>\dllcache\pinball.exe.new
<SYSTEM32>\dllcache\dialer.exe with <SYSTEM32>\dllcache\dialer.exe.new
<SYSTEM32>\dllcache\wmplayer.exe with <SYSTEM32>\dllcache\wmplayer.exe.new
<SYSTEM32>\dllcache\isignup.exe with <SYSTEM32>\dllcache\isignup.exe.new
<SYSTEM32>\dllcache\icwconn2.exe with <SYSTEM32>\dllcache\icwconn2.exe.new
<SYSTEM32>\dllcache\msinfo32.exe with <SYSTEM32>\dllcache\msinfo32.exe.new
<SYSTEM32>\dllcache\iexplore.exe with <SYSTEM32>\dllcache\iexplore.exe.new
<SYSTEM32>\dllcache\rvsezm.exe with <SYSTEM32>\dllcache\rvsezm.exe.new
<SYSTEM32>\dllcache\chkrzm.exe with <SYSTEM32>\dllcache\chkrzm.exe.new
<SYSTEM32>\dllcache\moviemk.exe with <SYSTEM32>\dllcache\moviemk.exe.new
Infects the following executable files:
%PROGRAM_FILES%\Windows NT\dialer.exe.new
%PROGRAM_FILES%\Windows Media Player\wmplayer.exe.new
%PROGRAM_FILES%\Windows NT\Pinball\pinball.exe.new
<SYSTEM32>\dllcache\icwconn2.exe.new
<SYSTEM32>\dllcache\msinfo32.exe.new
%PROGRAM_FILES%\Windows Media Player\mplayer2.exe.new
%PROGRAM_FILES%\MSN Gaming Zone\Windows\rvsezm.exe.new
%PROGRAM_FILES%\MSN Gaming Zone\Windows\chkrzm.exe.new
%PROGRAM_FILES%\NetMeeting\conf.exe.new
%PROGRAM_FILES%\Outlook Express\wabmig.exe.new
%PROGRAM_FILES%\Outlook Express\msimn.exe.new
<SYSTEM32>\dllcache\isignup.exe.new
<SYSTEM32>\dllcache\mplayer2.exe.new
<SYSTEM32>\dllcache\wabmig.exe.new
<SYSTEM32>\dllcache\wmplayer.exe.new
<SYSTEM32>\dllcache\pinball.exe.new
<SYSTEM32>\dllcache\dialer.exe.new
<SYSTEM32>\dllcache\msimn.exe.new
<SYSTEM32>\dllcache\moviemk.exe.new
<SYSTEM32>\dllcache\iexplore.exe.new
<SYSTEM32>\dllcache\chkrzm.exe.new
<SYSTEM32>\dllcache\conf.exe.new
<SYSTEM32>\dllcache\rvsezm.exe.new
%PROGRAM_FILES%\Movie Maker\moviemk.exe.new
%PROGRAM_FILES%\Movie Maker\moviemk.exe
%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE
%PROGRAM_FILES%\MSN\MSNCoreFiles\Install\MSN9Components\Msncli.exe
%PROGRAM_FILES%\MSN Gaming Zone\Windows\chkrzm.exe
%PROGRAM_FILES%\MSN\MSNCoreFiles\Install\msnsusii.exe
%PROGRAM_FILES%\Internet Explorer\Connection Wizard\isignup.exe
%CommonProgramFiles%\Microsoft Shared\MSInfo\msinfo32.exe
%CommonProgramFiles%\Microsoft Shared\DW\DW20.EXE
%PROGRAM_FILES%\FireFox\crashreporter.exe
%PROGRAM_FILES%\Internet Explorer\Connection Wizard\icwconn2.exe
%PROGRAM_FILES%\FireFox\updater.exe
%PROGRAM_FILES%\MSN Gaming Zone\Windows\Rvsezm.exe
%CommonProgramFiles%\Microsoft Shared\MSInfo\msinfo32.exe.new
%PROGRAM_FILES%\Windows NT\Pinball\PINBALL.EXE
%PROGRAM_FILES%\Internet Explorer\Connection Wizard\icwconn2.exe.new
%PROGRAM_FILES%\Internet Explorer\iexplore.exe.new
%PROGRAM_FILES%\Internet Explorer\Connection Wizard\isignup.exe.new
%PROGRAM_FILES%\Windows NT\dialer.exe
%PROGRAM_FILES%\Outlook Express\msimn.exe
%PROGRAM_FILES%\NetMeeting\conf.exe
%PROGRAM_FILES%\Outlook Express\wabmig.exe
%PROGRAM_FILES%\Windows Media Player\wmplayer.exe
%PROGRAM_FILES%\Windows Media Player\mplayer2.exe
Malicious functions:
Creates and executes the following:
'%PROGRAM_FILES%\DateMini.exe'
'C:\StreamLink.exe' rb
'C:\StreamLink.exe' <Full path to virus>
Executes the following:
'<SYSTEM32>\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v Play_Animations /t REG_SZ /d no /F
'<SYSTEM32>\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v DisableScriptDebuggerIE /t REG_SZ /d yes /F
'<SYSTEM32>\regsvr32.exe' /s jscript.dll
'<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\{4D36E967-E325-11CE-BFC1-08002BE10318} /F
'<SYSTEM32>\sc.exe' create ccosmSrv BinPath= "%PROGRAM_FILES%\StormII\stormSrv.exe /asservice" type= own type= interact start= auto DisplayName= PathWinRGB
'<SYSTEM32>\sc.exe' description ccosmSrv "Contrl Center of Storm Media"
'<SYSTEM32>\regsvr32.exe' /u /s vbscript.dll
'<SYSTEM32>\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Enable AutoImageResize" /t REG_SZ /d no /F
'<SYSTEM32>\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Display Inline Videos" /t REG_SZ /d no /F
'<SYSTEM32>\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Disable Script Debugger" /t REG_SZ /d yes /F
'<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{D27CDB6E-AE6D-11cf-96B8-444553540000}" /v "Compatibility Flags" /t REG_SZ /d 00000400 /F
'<SYSTEM32>\cmd.exe' /c "%PROGRAM_FILES%\XpathPath.bat"
'<SYSTEM32>\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v Play_Background_Sounds /t REG_SZ /d no /F
'<SYSTEM32>\regsvr32.exe' /u /s scrrun.dll
'<SYSTEM32>\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "Display Inline Images" /t REG_SZ /d yes /F
'<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E967-E325-11CE-BFC1-08002BE10318} /F
'<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\{4D36E967-E325-11CE-BFC1-08002BE10318} /F
Modifies file system :
Creates the following files:
%WINDIR%\ArchivePersonal.exe
%PROGRAM_FILES%\DateMini.exe
%PROGRAM_FILES%\XpathPath.bat
C:\StreamLink.exe
%PROGRAM_FILES%\StormII\stormSrv.exe
Sets the 'hidden' attribute to the following files:
%ALLUSERSPROFILE%\Start Menu\Programs\Startup\moviemk.exe.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Startup\PINBALL.EXE.lnk
%ALLUSERSPROFILE%\Start Menu\Programs\Startup\updater.exe.lnk
Moves the following files:
from <SYSTEM32>\dllcache\pinball.exe.new to <SYSTEM32>\dllcache\pinball.exe
from <SYSTEM32>\dllcache\rvsezm.exe.new to <SYSTEM32>\dllcache\rvsezm.exe
from <SYSTEM32>\dllcache\iexplore.exe.new to <SYSTEM32>\dllcache\iexplore.exe
Miscellaneous:
Searches for the following windows:
ClassName: 'YTAELVOSVUD' WindowName: 'kggexxrcfttg'
Curing recommendations
Windows
macOS
Linux
Android
If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space .
If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
Switch off your device and turn it on as normal.
Find out more about Dr.Web for Android
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