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Trojan.MulDrop5.21220

Added to the Dr.Web virus database: 2014-05-09

Virus description added:

Technical Information

Malicious functions:
Creates and executes the following:
  • '%TEMP%\CmdLineExtInstallerExe.exe'
Searches for windows to
detect analytical utilities:
  • ClassName: 'FileMonClass' WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
  • ClassName: 'File Monitor - Sysinternals: www.sysinternals.com' WindowName: 'FileMonClass'
  • ClassName: 'PROCMON_WINDOW_CLASS' WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
  • ClassName: 'APIMonitor By Rohitab' WindowName: '(null)'
  • ClassName: 'OLLYDBG' WindowName: '(null)'
  • ClassName: 'pediy06' WindowName: '(null)'
  • ClassName: 'TIdaWindow' WindowName: '(null)'
Modifies file system :
Creates the following files:
  • <SYSTEM32>\d3d9caps.tmp
  • %TEMP%\drm_dyndata_7340014.dll
  • %TEMP%\drm_dialogs.dll
  • %TEMP%\CmdLineExtInstallerExe.exe
  • <SYSTEM32>\CmdLineExt.dll
  • <SYSTEM32>\d3d9caps.dat
Deletes the following files:
  • <SYSTEM32>\d3d9caps.dat
  • %TEMP%\CmdLineExtInstallerExe.exe
Moves the following files:
  • from <SYSTEM32>\d3d9caps.tmp to <SYSTEM32>\d3d9caps.dat
Miscellaneous:
Searches for the following windows:
  • ClassName: '#32770' WindowName: 'Task Explorer II - by Ntoskrnl'
  • ClassName: '#32770' WindowName: 'Atiptool'
  • ClassName: '#32770' WindowName: 'Y.A.S.U v1.04 - Copyright ? 2006 CureROM DT'
  • ClassName: '#32770' WindowName: 'Y.A.S.U v1.03 - Copyright ? 2006 CureROM DT'
  • ClassName: 'ThunderRT6Main' WindowName: 'ApiLogger'
  • ClassName: 'ApiLogger' WindowName: 'ThunderRT6Main'
  • ClassName: 'ThunderRT6Main' WindowName: 'SysAnalyzer'
  • ClassName: 'SysAnalyzer' WindowName: 'ThunderRT6Main'
  • ClassName: 'ReBarWindow32' WindowName: '(null)'
  • ClassName: 'ThunderRT6Main' WindowName: 'Pr0t.St0p v1.0'
  • ClassName: 'ThunderRT6FormDC' WindowName: 'Pr0t.St0p v1.0'
  • ClassName: '(null)' WindowName: 'APIMonitor By Rohitab'
  • ClassName: 'ThunderRT6FormDC' WindowName: 'Settings'
  • ClassName: 'ToolbarWindow32?' WindowName: '(null)'
  • ClassName: 'Shell_TrayWnd' WindowName: '(null)'
  • ClassName: 'TApplication' WindowName: '<Virus name>'
  • ClassName: 'ThunderRT6Main' WindowName: 'SD4 Sucks v0.10 by Joseph Cox'
  • ClassName: 'ThunderRT6Main' WindowName: 'Process Analyzer - right click on a process to access menu'
  • ClassName: 'cuteProgressClass' WindowName: '(null)'
  • ClassName: 'JCDSPY_NT_001' WindowName: 'DriverspyNT v1.20. (c)2001,2002 Collake Software'
  • ClassName: 'c1' WindowName: 'KaKeeware Application Monitor 1.21'
  • ClassName: 'c3' WindowName: 'API Functions'
  • ClassName: 'ToolbarWindow32' WindowName: '(null)'
  • ClassName: 'SysListView32' WindowName: '(null)'
  • ClassName: 'TrayNotifyWnd' WindowName: '(null)'
  • ClassName: 'SysPager' WindowName: '(null)'
  • ClassName: 'PROCEXPL' WindowName: '(null)'
  • ClassName: 'sniff_hit' WindowName: 'ThunderRT6Main'
  • ClassName: 'ThunderRT6Main' WindowName: 'SysAnalyzer Configuration Wizard'
  • ClassName: 'Process Analyzer - right click on a process to access menu' WindowName: 'ThunderRT6Main'
  • ClassName: 'ThunderRT6Main' WindowName: 'sniff_hit'
  • ClassName: 'PEBrowse Professional Interactive' WindowName: 'TMainForm'
  • ClassName: 'PROCEXPL' WindowName: 'Process Explorer - SysInternals: www.sysinternals.com [CRNJEUFU\%USERNAME%]'
  • ClassName: 'SysAnalyzer Configuration Wizard' WindowName: 'ThunderRT6Main'
  • ClassName: 'TMainForm' WindowName: 'PEBrowse Professional Interactive'
  • ClassName: 'ThunderRT6Main' WindowName: 'SR7.Stop v1.1'
  • ClassName: 'ThunderRT6FormDC' WindowName: 'SR7.Stop v1.1'
  • ClassName: 'ThunderRT6Main' WindowName: 'SR7Stop'
  • ClassName: 'ThunderRT6Main' WindowName: 'SR7.Stop v1.2'
  • ClassName: '(null)' WindowName: '[ LordPE Dumper Server ]'
  • ClassName: '[ LordPE Dumper Server ]' WindowName: '(null)'
  • ClassName: '(null)' WindowName: '[ LordPE Deluxe ] by yoda'
  • ClassName: '[ LordPE Deluxe ] by yoda' WindowName: '(null)'
  • ClassName: 'Virtual-CD-Hide' WindowName: 'Virtual-CD-Hide'
  • ClassName: 'Lbr68' WindowName: '(null)'
  • ClassName: 'icu_dbg' WindowName: '(null)'
  • ClassName: '18467-41' WindowName: '(null)'
  • ClassName: 'SHADOW' WindowName: '(null)'
  • ClassName: 'ThunderRT6Main' WindowName: 'Anti-Blaxx'
  • ClassName: '#32770' WindowName: 'Starforce Nightmare'
  • ClassName: 'kk1' WindowName: '(null)'
  • ClassName: 'WispWindowClass' WindowName: 'Syser [Ctrl+F12]'
  • ClassName: '#32770' WindowName: '[ LordPE Deluxe b ] by yoda'
  • ClassName: 'TApplication' WindowName: 'SafeDisc4 Hider'
  • ClassName: 'SafeDisc4 Hider' WindowName: 'TApplication'
  • ClassName: '#32770' WindowName: 'BusTrace Status'
  • ClassName: 'BusTrace Status' WindowName: '#32770'
  • ClassName: 'Tsd4hideform' WindowName: 'SafeDisc4 Hider 1.1 ? 2005 SKULL'
  • ClassName: 'SafeDisc4 Hider 1.1 ? 2005 SKULL' WindowName: 'Tsd4hideform'
  • ClassName: 'TForm1' WindowName: 'SafeDisc4 Hider 1.0 ? 2005 SKULL'
  • ClassName: 'SafeDisc4 Hider 1.0 ? 2005 SKULL' WindowName: 'TForm1'
  • ClassName: 'Fucker of CDROM Protections v0.83 Beta' WindowName: 'TForm1'
  • ClassName: '[ LordPE RoyalTS ] by yoda' WindowName: '#32770'
  • ClassName: '#32770' WindowName: 'STARFUCK TOOL'
  • ClassName: '[ LordPE Deluxe b ] by yoda' WindowName: '#32770'
  • ClassName: '#32770' WindowName: '[ LordPE RoyalTS ] by yoda'
  • ClassName: 'Fucker of CDROM Protections v0.81 Beta' WindowName: 'TForm1'
  • ClassName: 'TForm1' WindowName: 'Fucker of CDROM Protections v0.83 Beta'
  • ClassName: 'STARFUCK TOOL' WindowName: '#32770'
  • ClassName: 'TForm1' WindowName: 'Fucker of CDROM Protections v0.81 Beta'

Curing recommendations

  1. 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.
  2. 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.
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  1. 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.
  2. 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.

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