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Profil

Trojan.Renamer.100

Added to the Dr.Web virus database: 2011-11-06

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Intel' = 'C:\Documento Importante.exe'
Infects the following executable system files:
  • %WINDIR%\explorer.scf
Creates the following files on removable media:
  • <Drive name for removable media>:\Documento Importante.exe
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
  • Windows Task Manager (Taskmgr)
  • Registry Editor (RegEdit)
Executes the following:
  • <SYSTEM32>\cmd.exe /c ""C:\micro3.bat" "
  • <SYSTEM32>\cmd.exe /c ""C:\micro2.bat" "
  • <SYSTEM32>\cmd.exe /c ""C:\micro.bat" "
Modifies settings of Windows Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoClose' = '00000001'
Modifies file system :
Creates the following files:
  • C:\micro3.bat
  • C:\Documento Importante.exe
  • C:\micro.bat
  • C:\micro2.bat
Sets the 'hidden' attribute to the following files:
  • C:\micro3.bat
  • C:\micro2.bat
  • C:\micro.bat
Moves the following system files:
  • from %WINDIR%\sleep.exe to %WINDIR%\sleep.jpg
  • from %WINDIR%\Soap Bubbles.bmp to %WINDIR%\Soap Bubbles.jpg
  • from %WINDIR%\setuplog.txt to %WINDIR%\setuplog.jpg
  • from %WINDIR%\sfk.exe to %WINDIR%\sfk.jpg
  • from %WINDIR%\spupdsvc.log to %WINDIR%\spupdsvc.jpg
  • from %WINDIR%\tabletoc.log to %WINDIR%\tabletoc.jpg
  • from %WINDIR%\TASKMAN.EXE to %WINDIR%\TASKMAN.jpg
  • from %WINDIR%\Sti_Trace.log to %WINDIR%\Sti_Trace.jpg
  • from %WINDIR%\system.ini to %WINDIR%\system.jpg
  • from %WINDIR%\sessmgr.setup.log to %WINDIR%\sessmgr.setup.jpg
  • from %WINDIR%\SET3.tmp to %WINDIR%\SET3.jpg
  • from %WINDIR%\Santa Fe Stucco.bmp to %WINDIR%\Santa Fe Stucco.jpg
  • from %WINDIR%\SchedLgU.Txt to %WINDIR%\SchedLgU.jpg
  • from %WINDIR%\SET4.tmp to %WINDIR%\SET4.jpg
  • from %WINDIR%\setupapi.log to %WINDIR%\setupapi.jpg
  • from %WINDIR%\setuperr.log to %WINDIR%\setuperr.jpg
  • from %WINDIR%\SET8.tmp to %WINDIR%\SET8.jpg
  • from %WINDIR%\setupact.log to %WINDIR%\setupact.jpg
  • from %WINDIR%\WindowsUpdate.log to %WINDIR%\WindowsUpdate.jpg
  • from %WINDIR%\winhelp.exe to %WINDIR%\winhelp.jpg
  • from %WINDIR%\wiaservc.log to %WINDIR%\wiaservc.jpg
  • from %WINDIR%\win.ini to %WINDIR%\win.jpg
  • from %WINDIR%\winhlp32.exe to %WINDIR%\winhlp32.jpg
  • from %WINDIR%\Zapotec.bmp to %WINDIR%\Zapotec.jpg
  • from %WINDIR%\_default.pif to %WINDIR%\_default.jpg
  • from %WINDIR%\wmsetup.log to %WINDIR%\wmsetup.jpg
  • from %WINDIR%\WMSysPr9.prx to %WINDIR%\WMSysPr9.jpg
  • from %WINDIR%\twain_32.dll to %WINDIR%\twain_32.jpg
  • from %WINDIR%\twunk_16.exe to %WINDIR%\twunk_16.jpg
  • from %WINDIR%\tsoc.log to %WINDIR%\tsoc.jpg
  • from %WINDIR%\twain.dll to %WINDIR%\twain.jpg
  • from %WINDIR%\twunk_32.exe to %WINDIR%\twunk_32.jpg
  • from %WINDIR%\vmmreg32.dll to %WINDIR%\vmmreg32.jpg
  • from %WINDIR%\wiadebug.log to %WINDIR%\wiadebug.jpg
  • from %WINDIR%\vb.ini to %WINDIR%\vb.jpg
  • from %WINDIR%\vbaddin.ini to %WINDIR%\vbaddin.jpg
  • from %WINDIR%\River Sumida.bmp to %WINDIR%\River Sumida.jpg
  • from %WINDIR%\FeatherTexture.bmp to %WINDIR%\FeatherTexture.jpg
  • from %WINDIR%\Gone Fishing.bmp to %WINDIR%\Gone Fishing.jpg
  • from %WINDIR%\explorer.exe to %WINDIR%\explorer.jpg
  • from %WINDIR%\FaxSetup.log to %WINDIR%\FaxSetup.jpg
  • from %WINDIR%\Greenstone.bmp to %WINDIR%\Greenstone.jpg
  • from %WINDIR%\imsins.BAK to %WINDIR%\imsins.jpg
  • from %WINDIR%\KB893803v2.log to %WINDIR%\KB893803v2.jpg
  • from %WINDIR%\hh.exe to %WINDIR%\hh.jpg
  • from %WINDIR%\iis6.log to %WINDIR%\iis6.jpg
  • from %WINDIR%\clock.avi to %WINDIR%\clock.jpg
  • from %WINDIR%\cmsetacl.log to %WINDIR%\cmsetacl.jpg
  • from %WINDIR%\0.log to %WINDIR%\0.jpg
  • from %WINDIR%\Blue Lace 16.bmp to %WINDIR%\Blue Lace 16.jpg
  • from %WINDIR%\Coffee Bean.bmp to %WINDIR%\Coffee Bean.jpg
  • from %WINDIR%\desktop.ini to %WINDIR%\desktop.jpg
  • from %WINDIR%\DtcInstall.log to %WINDIR%\DtcInstall.jpg
  • from %WINDIR%\comsetup.log to %WINDIR%\comsetup.jpg
  • from %WINDIR%\control.ini to %WINDIR%\control.jpg
  • from %WINDIR%\OEWABLog.txt to %WINDIR%\OEWABLog.jpg
  • from %WINDIR%\oobeact.log to %WINDIR%\oobeact.jpg
  • from %WINDIR%\ocmsn.log to %WINDIR%\ocmsn.jpg
  • from %WINDIR%\ODBCINST.INI to %WINDIR%\ODBCINST.jpg
  • from %WINDIR%\Prairie Wind.bmp to %WINDIR%\Prairie Wind.jpg
  • from %WINDIR%\regopt.log to %WINDIR%\regopt.jpg
  • from %WINDIR%\Rhododendron.bmp to %WINDIR%\Rhododendron.jpg
  • from %WINDIR%\regedit.exe to %WINDIR%\regedit.jpg
  • from %WINDIR%\REGLOCS.OLD to %WINDIR%\REGLOCS.jpg
  • from %WINDIR%\msgsocm.log to %WINDIR%\msgsocm.jpg
  • from %WINDIR%\msmqinst.log to %WINDIR%\msmqinst.jpg
  • from %WINDIR%\MedCtrOC.log to %WINDIR%\MedCtrOC.jpg
  • from %WINDIR%\msdfmap.ini to %WINDIR%\msdfmap.jpg
  • from %WINDIR%\netfxocm.log to %WINDIR%\netfxocm.jpg
  • from %WINDIR%\ntdtcsetup.log to %WINDIR%\ntdtcsetup.jpg
  • from %WINDIR%\ocgen.log to %WINDIR%\ocgen.jpg
  • from %WINDIR%\NOTEPAD.EXE to %WINDIR%\NOTEPAD.jpg
  • from %WINDIR%\nsreg.dat to %WINDIR%\nsreg.jpg
Moves itself:
  • from <Full path to virus> to <Current directory>\<Virus name>.jpg
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''

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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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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Download by serial number

  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.

Find out more about Dr.Web for Android