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Added to the Dr.Web virus database: 2014-05-07

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'windowsWord' = '<SYSTEM32>\Kamasutra.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\AutoRun.inf
Malicious functions:
Creates and executes the following:
  • '%WINDIR%\..exe'
Executes the following:
  • '<SYSTEM32>\attrib.exe' +S +H +R +A <Drive name for removable media>:\Autorun.inf
  • '<SYSTEM32>\attrib.exe' +S +H +R +A E:\Autorun.inf
  • '<SYSTEM32>\attrib.exe' +S +H +R +A Z:\Autorun.inf
  • '<SYSTEM32>\wbem\wmic.exe' logicaldisk get caption
  • '<SYSTEM32>\cmd.exe' /c ""%TEMP%\1.tmp\Kamasutra.bat" "
  • '<SYSTEM32>\reg.exe' DELETE HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v windowsWord /f
  • '<SYSTEM32>\reg.exe' ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v windowsWord /t REG_SZ /d <SYSTEM32>\Kamasutra.exe
Modifies file system :
Creates the following files:
  • %TEMP%\tmp2.tmp
  • <SYSTEM32>\rd-RD\2387878.005
  • <SYSTEM32>\rd-RD\2387878.008
  • %TEMP%\tmp3.tmp
  • <SYSTEM32>\wbem\AutoRecover\23BDE61F1F4FACE17E9B0C01F2A1FD9B.mof
  • %TEMP%\tmp4.tmp
  • <SYSTEM32>\wbem\AutoRecover\C8463ECBE33BC240263A0B094E46D510.mof
  • <SYSTEM32>\rd-RD\2387878.006
  • <SYSTEM32>\rd-RD\2387878.exe
  • <Current directory>\..exe
  • %TEMP%\1.tmp\Kamasutra.bat
  • <SYSTEM32>\rd-RD\AKV.exe
  • <SYSTEM32>\rd-RD\2387878.004
  • <SYSTEM32>\rd-RD\2387878.002
  • <SYSTEM32>\rd-RD\2387878.001
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\AutoRun.inf
Deletes the following files:
  • %TEMP%\tmp4.tmp
  • %WINDIR%\..exe
  • %TEMP%\tmp2.tmp
  • %TEMP%\tmp3.tmp
Moves the following files:
  • from <Current directory>\..exe to %WINDIR%\..exe
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'
  • ClassName: 'EDIT' WindowName: '(null)'
  • ClassName: '' WindowName: '(null)'
  • ClassName: 'Shell_TrayWnd' WindowName: '(null)'

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