Win32.Expiro.82

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

Changes the following executable system files:

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

Infects the following executable files:

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

Malicious functions:

Executes the following:

Modifies file system :

Creates the following files:

<SYSTEM32>\clodngci.tmp
<SYSTEM32>\ncklggei.tmp
<SYSTEM32>\kaagaaec.tmp
<SYSTEM32>\pcldhbnj.tmp
<SYSTEM32>\kmbqmbpg.tmp
<SYSTEM32>\qqqpkcgo.tmp
<SYSTEM32>\wbem\ajijmmmn.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\odnfhfga.tmp
<SYSTEM32>\jkainplb.tmp
<SYSTEM32>\fjlpgicl.tmp
<SYSTEM32>\jmidjbdq.tmp
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cjgmbaod.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mgelkjlj.tmp
<SYSTEM32>\apfajgdo.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\fjfigmbc.tmp
<SYSTEM32>\jfbffhmm.tmp
<SYSTEM32>\bfddaaec.tmp
<SYSTEM32>\hagmcnnn.tmp
<SYSTEM32>\oollqndp.tmp
<SYSTEM32>\hdmjhmbl.tmp
<SYSTEM32>\adgaijjo.tmp
%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\meldeclq.tmp

Deletes the following files:

<SYSTEM32>\clodngci.tmp
<SYSTEM32>\ncklggei.tmp
<SYSTEM32>\kaagaaec.tmp
<SYSTEM32>\pcldhbnj.tmp
<SYSTEM32>\kmbqmbpg.tmp
<SYSTEM32>\qqqpkcgo.tmp
<SYSTEM32>\wbem\ajijmmmn.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\odnfhfga.tmp
<SYSTEM32>\jkainplb.tmp
<SYSTEM32>\fjlpgicl.tmp
<SYSTEM32>\jmidjbdq.tmp
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cjgmbaod.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mgelkjlj.tmp
<SYSTEM32>\apfajgdo.tmp
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\fjfigmbc.tmp
<SYSTEM32>\jfbffhmm.tmp
<SYSTEM32>\bfddaaec.tmp
<SYSTEM32>\hagmcnnn.tmp
<SYSTEM32>\oollqndp.tmp
<SYSTEM32>\hdmjhmbl.tmp
<SYSTEM32>\adgaijjo.tmp
%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\meldeclq.tmp