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Win32.Expiro.59

Added to the Dr.Web virus database: 2013-07-21

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\NetDDE] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\MSIServer] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\mnmsrvc] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\RDSessMgr] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\WmiApSrv] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\VSS] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\TlntSvr] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\clr_optimization_v2.0.50727_32] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\ClipSrv] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\CiSvc] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\clr_optimization_v4.0.30319_32] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\ImapiService] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\idsvc] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\dmadmin] 'Start' = '00000002'
Infects the following executable system files:
  • <SYSTEM32>\locator.exe
  • <SYSTEM32>\scardsvr.exe
  • <SYSTEM32>\netdde.exe
  • <SYSTEM32>\sessmgr.exe
  • <SYSTEM32>\smlogsvc.exe
  • <SYSTEM32>\wbem\wmiapsrv.exe
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\WPFFontCache_v0400.exe
  • <SYSTEM32>\tlntsvr.exe
  • <SYSTEM32>\vssvc.exe
  • <SYSTEM32>\msiexec.exe
  • <SYSTEM32>\clipsrv.exe
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\aspnet_state.exe
  • <SYSTEM32>\cisvc.exe
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
  • <SYSTEM32>\imapi.exe
  • <SYSTEM32>\mnmsrvc.exe
  • <SYSTEM32>\dmadmin.exe
  • %WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.exe
Malicious functions:
Executes the following:
  • '<SYSTEM32>\cisvc.exe'
Modifies file system :
Creates the following files:
  • <SYSTEM32>\locator.vir
  • <SYSTEM32>\scardsvr.vir
  • <SYSTEM32>\netdde.vir
  • <SYSTEM32>\sessmgr.vir
  • <SYSTEM32>\smlogsvc.vir
  • <SYSTEM32>\wbem\wmiapsrv.vir
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\wpffontcache_v0400.vir
  • <SYSTEM32>\tlntsvr.vir
  • <SYSTEM32>\vssvc.vir
  • <SYSTEM32>\msiexec.vir
  • <SYSTEM32>\clipsrv.vir
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.vir
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\aspnet_state.vir
  • <SYSTEM32>\cisvc.vir
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.vir
  • <SYSTEM32>\imapi.vir
  • <SYSTEM32>\mnmsrvc.vir
  • <SYSTEM32>\dmadmin.vir
  • %WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.vir
Deletes the following files:
  • <SYSTEM32>\locator.vir
  • <SYSTEM32>\scardsvr.vir
  • <SYSTEM32>\netdde.vir
  • <SYSTEM32>\sessmgr.vir
  • <SYSTEM32>\smlogsvc.vir
  • <SYSTEM32>\wbem\wmiapsrv.vir
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\wpffontcache_v0400.vir
  • <SYSTEM32>\tlntsvr.vir
  • <SYSTEM32>\vssvc.vir
  • <SYSTEM32>\msiexec.vir
  • <SYSTEM32>\clipsrv.vir
  • %WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.vir
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\aspnet_state.vir
  • <SYSTEM32>\cisvc.vir
  • %WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.vir
  • <SYSTEM32>\imapi.vir
  • <SYSTEM32>\mnmsrvc.vir
  • <SYSTEM32>\dmadmin.vir
  • %WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.vir