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Win32.Expiro.64

Added to the Dr.Web virus database: 2013-09-26

Virus description added:

Technical Information

Malicious functions:
Modifies settings of Windows Internet Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1609' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '2103' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2103' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '2103' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '1609' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '2103' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1609' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1609' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1609' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '2103' = '00000000'
Modifies file system :
Creates the following files:
  • %PROGRAM_FILES%\FireFox\xpcshell.vir
  • %PROGRAM_FILES%\FireFox\xpidl.vir
  • %PROGRAM_FILES%\FireFox\shlibsign.vir
  • %PROGRAM_FILES%\FireFox\updater.vir
  • %PROGRAM_FILES%\FireFox\xpt_dump.vir
  • %PROGRAM_FILES%\MSN\MSNCoreFiles\Install\MSN9Components\Digcore.vir
  • %PROGRAM_FILES%\MSN\MSNCoreFiles\Install\MSN9Components\Msncli.vir
  • %PROGRAM_FILES%\FireFox\xpt_link.vir
  • %PROGRAM_FILES%\Messenger\msmsgs.vir
  • %PROGRAM_FILES%\FireFox\plugin-container.vir
  • %PROGRAM_FILES%\MSN\MSNCoreFiles\Install\msnsusii.vir
  • C:\Far2\Far.vir
  • <LS_APPDATA>\wsr17zt32.dll
  • %PROGRAM_FILES%\Windows NT\hypertrm.vir
  • %PROGRAM_FILES%\FireFox\crashreporter.vir
  • %PROGRAM_FILES%\FireFox\mangle.vir
  • %PROGRAM_FILES%\FireFox\nsinstall.vir
  • %PROGRAM_FILES%\FireFox\firefox.vir
  • %PROGRAM_FILES%\FireFox\js.vir
Deletes the following files:
  • %PROGRAM_FILES%\FireFox\xpcshell.vir
  • %PROGRAM_FILES%\FireFox\xpidl.vir
  • %PROGRAM_FILES%\FireFox\shlibsign.vir
  • %PROGRAM_FILES%\FireFox\updater.vir
  • %PROGRAM_FILES%\FireFox\xpt_dump.vir
  • %PROGRAM_FILES%\MSN\MSNCoreFiles\Install\MSN9Components\Digcore.vir
  • %PROGRAM_FILES%\MSN\MSNCoreFiles\Install\MSN9Components\Msncli.vir
  • %PROGRAM_FILES%\FireFox\xpt_link.vir
  • %PROGRAM_FILES%\Messenger\msmsgs.vir
  • C:\Far2\Far.vir
  • %PROGRAM_FILES%\FireFox\crashreporter.vir
  • %PROGRAM_FILES%\Windows NT\hypertrm.vir
  • %PROGRAM_FILES%\MSN\MSNCoreFiles\Install\msnsusii.vir
  • %PROGRAM_FILES%\FireFox\firefox.vir
  • %PROGRAM_FILES%\FireFox\nsinstall.vir
  • %PROGRAM_FILES%\FireFox\plugin-container.vir
  • %PROGRAM_FILES%\FireFox\js.vir
  • %PROGRAM_FILES%\FireFox\mangle.vir
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: '(null)'