Win32.Expiro.93

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\idsvc] '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\dmadmin] 'Start' = '00000002'
[<HKLM>\SYSTEM\ControlSet001\Services\COMSysApp] 'Start' = '00000002'

Changes the following executable system files:

<SYSTEM32>\vssvc.exe
<SYSTEM32>\wbem\wmiapsrv.exe
<SYSTEM32>\magnify.exe
<SYSTEM32>\ups.exe
<SYSTEM32>\scardsvr.exe
<SYSTEM32>\smlogsvc.exe
<SYSTEM32>\tlntsvr.exe
<SYSTEM32>\notepad.exe
<SYSTEM32>\mobsync.exe
<SYSTEM32>\tourstart.exe
<SYSTEM32>\utilman.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\WPFFontCache_v0400.exe
<SYSTEM32>\narrator.exe
<SYSTEM32>\osk.exe
<SYSTEM32>\locator.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
<SYSTEM32>\dllhost.exe
<SYSTEM32>\dmadmin.exe
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\aspnet_state.exe
<SYSTEM32>\cisvc.exe
<SYSTEM32>\clipsrv.exe
<SYSTEM32>\msiexec.exe
<SYSTEM32>\netdde.exe
<SYSTEM32>\sessmgr.exe
<SYSTEM32>\msdtc.exe
<SYSTEM32>\imapi.exe
%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.exe
<SYSTEM32>\mnmsrvc.exe

Infects the following executable files:

<SYSTEM32>\wbem\wmiapsrv.exe
<SYSTEM32>\magnify.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\WPFFontCache_v0400.exe
<SYSTEM32>\vssvc.exe
<SYSTEM32>\smlogsvc.exe
<SYSTEM32>\tlntsvr.exe
<SYSTEM32>\ups.exe
<SYSTEM32>\narrator.exe
<SYSTEM32>\notepad.exe
<SYSTEM32>\mobsync.exe
<SYSTEM32>\tourstart.exe
%PROGRAM_FILES%\Windows Media Player\wmplayer.exe
<SYSTEM32>\osk.exe
<SYSTEM32>\utilman.exe
%PROGRAM_FILES%\Outlook Express\wab.exe
<SYSTEM32>\scardsvr.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
<SYSTEM32>\dllhost.exe
<SYSTEM32>\dmadmin.exe
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\aspnet_state.exe
<SYSTEM32>\cisvc.exe
<SYSTEM32>\clipsrv.exe
<SYSTEM32>\imapi.exe
<SYSTEM32>\netdde.exe
<SYSTEM32>\sessmgr.exe
<SYSTEM32>\locator.exe
<SYSTEM32>\msiexec.exe
%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.exe
<SYSTEM32>\mnmsrvc.exe
<SYSTEM32>\msdtc.exe

Malicious functions:

Executes the following:

'<SYSTEM32>\imapi.exe'
'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe' -UseCLSID {6DA21186-3824-4DE4-8D5C-1117E9FBE9C2} -Comment "NGen Worker Process"
'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe' -UseCLSID {C9C2FD65-E195-4A65-8141-D9241555A66A} -Comment "NGen Worker Process"
'<SYSTEM32>\dmadmin.exe' /com
'<SYSTEM32>\cisvc.exe'
'%WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe'
'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe'

Modifies file system :

Creates the following files:

<SYSTEM32>\wbem\pdcdfgmf.tmp
<SYSTEM32>\bbgeiocn.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\diejkiip.tmp
<SYSTEM32>\ecfngmod.tmp
<SYSTEM32>\ajgpihbe.tmp
<SYSTEM32>\hhjbgcpm.tmp
<SYSTEM32>\empcllnn.tmp
<SYSTEM32>\hpghkjec.tmp
<SYSTEM32>\gcoolcjm.tmp
<SYSTEM32>\pmanfiog.tmp
<SYSTEM32>\cigbmpoc.tmp
%PROGRAM_FILES%\Windows Media Player\emkgfafj.tmp
<SYSTEM32>\ojlodian.tmp
<SYSTEM32>\cfiipmme.tmp
%PROGRAM_FILES%\Outlook Express\hkfjcfkm.tmp
<SYSTEM32>\jpbljbkp.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\imadckac.tmp
<SYSTEM32>\hjkedccg.tmp
<SYSTEM32>\gnlnboeo.tmp
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\ofdehnap.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\podikoho.tmp
<SYSTEM32>\lckkmcqb.tmp
<SYSTEM32>\egngnljh.tmp
%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\kmnobaea.tmp
<SYSTEM32>\cfipklhf.tmp
<SYSTEM32>\cijmiopa.tmp
<SYSTEM32>\fdchdgna.tmp
<SYSTEM32>\glonfcif.tmp
<SYSTEM32>\jgcfmmkc.tmp
<SYSTEM32>\oogkfnmi.tmp
<SYSTEM32>\mcmcihip.tmp

Deletes the following files:

<SYSTEM32>\wbem\pdcdfgmf.tmp
<SYSTEM32>\bbgeiocn.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\diejkiip.tmp
<SYSTEM32>\ecfngmod.tmp
<SYSTEM32>\ajgpihbe.tmp
<SYSTEM32>\hhjbgcpm.tmp
<SYSTEM32>\empcllnn.tmp
<SYSTEM32>\hpghkjec.tmp
<SYSTEM32>\gcoolcjm.tmp
<SYSTEM32>\pmanfiog.tmp
<SYSTEM32>\cigbmpoc.tmp
%PROGRAM_FILES%\Windows Media Player\emkgfafj.tmp
<SYSTEM32>\ojlodian.tmp
<SYSTEM32>\cfiipmme.tmp
%PROGRAM_FILES%\Outlook Express\hkfjcfkm.tmp
<SYSTEM32>\jpbljbkp.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\imadckac.tmp
<SYSTEM32>\hjkedccg.tmp
<SYSTEM32>\gnlnboeo.tmp
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\ofdehnap.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\podikoho.tmp
<SYSTEM32>\lckkmcqb.tmp
<SYSTEM32>\egngnljh.tmp
<SYSTEM32>\jgcfmmkc.tmp
<SYSTEM32>\cfipklhf.tmp
<SYSTEM32>\cijmiopa.tmp
<SYSTEM32>\fdchdgna.tmp
<SYSTEM32>\glonfcif.tmp
%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\kmnobaea.tmp
<SYSTEM32>\oogkfnmi.tmp
<SYSTEM32>\mcmcihip.tmp

Miscellaneous:

Searches for the following windows: