Win32.Expiro.53

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>\calc.exe
<SYSTEM32>\accwiz.exe
<SYSTEM32>\sndrec32.exe
<SYSTEM32>\mstsc.exe
<SYSTEM32>\osk.exe
<SYSTEM32>\narrator.exe
<SYSTEM32>\mobsync.exe
<SYSTEM32>\utilman.exe
<SYSTEM32>\sndvol32.exe
<SYSTEM32>\mshearts.exe
<SYSTEM32>\odbcad32.exe
<SYSTEM32>\wupdmgr.exe
<SYSTEM32>\spider.exe
<SYSTEM32>\ntbackup.exe
<SYSTEM32>\mspaint.exe
<SYSTEM32>\Restore\rstrui.exe
<SYSTEM32>\usmt\migwiz.exe
<SYSTEM32>\magnify.exe
<SYSTEM32>\dmadmin.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
<SYSTEM32>\imapi.exe
%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.exe
<SYSTEM32>\cisvc.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\aspnet_state.exe
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
<SYSTEM32>\clipsrv.exe
<SYSTEM32>\msiexec.exe
<SYSTEM32>\vssvc.exe
<SYSTEM32>\tlntsvr.exe
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\WPFFontCache_v0400.exe
<SYSTEM32>\wbem\wmiapsrv.exe
<SYSTEM32>\sessmgr.exe
<SYSTEM32>\netdde.exe
<SYSTEM32>\smlogsvc.exe
<SYSTEM32>\locator.exe

Malicious functions:

Executes the following:

'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe' -UseCLSID {77C49E19-BE6A-424C-ABAB-0D81BDC371EB} -Comment "NGen Worker Process"
'<SYSTEM32>\mnmsrvc.exe'
'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe' -UseCLSID {8DFA4888-B190-4024-8A48-D1FDCDE0F50A} -Comment "NGen Worker Process"
'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe' -UseCLSID {6FA02679-9239-4FF7-9E4E-4E0193484C84} -Comment "NGen Worker Process"
'%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.exe'
'%WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe'
'<SYSTEM32>\cisvc.exe'
'<SYSTEM32>\dmadmin.exe' /com
'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe'

Modifies settings of Windows Internet Explorer:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2103' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1406' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '2103' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '1406' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '2103' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '2103' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1406' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1406' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1406' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '2103' = '00000000'

Modifies file system :

Creates the following files:

<SYSTEM32>\usmt\migwiz.vir
%CommonProgramFiles%\Microsoft Shared\MSInfo\msinfo32.vir
<SYSTEM32>\mspaint.vir
<SYSTEM32>\ntbackup.vir
<SYSTEM32>\odbcad32.vir
<SYSTEM32>\mshearts.vir
<SYSTEM32>\Restore\rstrui.vir
%PROGRAM_FILES%\Windows NT\Accessories\wordpad.vir
%APPDATA%\Mozilla\Firefox\Profiles\cwdgt0y8.default\extensions\{ec9032c7-c20a-464f-7b0e-13a3a9e97385}\components\red.js
<SYSTEM32>\accwiz.vir
%APPDATA%\Mozilla\Firefox\Profiles\cwdgt0y8.default\extensions\{ec9032c7-c20a-464f-7b0e-13a3a9e97385}\install.rdf
%APPDATA%\Mozilla\Firefox\Profiles\cwdgt0y8.default\extensions\{ec9032c7-c20a-464f-7b0e-13a3a9e97385}\chrome\content.jar
<SYSTEM32>\sndrec32.vir
<SYSTEM32>\sndvol32.vir
<SYSTEM32>\calc.vir
<SYSTEM32>\mstsc.vir
%PROGRAM_FILES%\FireFox\js.vir
%PROGRAM_FILES%\FireFox\mangle.vir
%PROGRAM_FILES%\FireFox\crashreporter.vir
%PROGRAM_FILES%\FireFox\firefox.vir
%PROGRAM_FILES%\FireFox\plugin-container.vir
%WINDIR%\assembly\NativeImages_v4.0.30319_32\Temp\cc8-0\Microsoft.Build.Framework.dll
%WINDIR%\assembly\NativeImages_v4.0.30319_32\Temp\ca4-0\MSBuild.exe
%PROGRAM_FILES%\FireFox\nsinstall.vir
%PROGRAM_FILES%\Movie Maker\moviemk.vir
<SYSTEM32>\wupdmgr.vir
<SYSTEM32>\spider.vir
%PROGRAM_FILES%\MSN\MSNCoreFiles\Install\msnsusii.vir
%CommonProgramFiles%\Microsoft Shared\DW\DWTRIG20.vir
%CommonProgramFiles%\Microsoft Shared\Speech\sapisvr.vir
C:\Far2\Far.vir
%CommonProgramFiles%\Microsoft Shared\DW\DW20.vir
%APPDATA%\Mozilla\Firefox\Profiles\cwdgt0y8.default\extensions\{ec9032c7-c20a-464f-7b0e-13a3a9e97385}\chrome.manifest
%TEMP%\WER6c5f.dir00\appcompat.txt
%TEMP%\WER6c5f.dir00\manifest.txt
%TEMP%\WER6c5f.dir00\infocard.exe.mdmp
%TEMP%\WER6c5f.dir00\infocard.exe.hdmp
<SYSTEM32>\netdde.vir
<SYSTEM32>\sessmgr.vir
<SYSTEM32>\mnmsrvc.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\v3.0\Windows Communication Foundation\infocard.vir
<SYSTEM32>\imapi.vir
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.vir
<SYSTEM32>\dmadmin.vir
<SYSTEM32>\utilman.vir
%PROGRAM_FILES%\Outlook Express\wab.vir
<SYSTEM32>\narrator.vir
<SYSTEM32>\osk.vir
%PROGRAM_FILES%\Outlook Express\msimn.vir
<LS_APPDATA>\wsr27zt32.dll
%PROGRAM_FILES%\Windows Media Player\wmplayer.vir
<SYSTEM32>\mobsync.vir
<SYSTEM32>\smlogsvc.vir
<SYSTEM32>\tlntsvr.vir
<SYSTEM32>\locator.vir
<SYSTEM32>\scardsvr.vir
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\wpffontcache_v0400.vir
<SYSTEM32>\magnify.vir
<SYSTEM32>\vssvc.vir
<SYSTEM32>\wbem\wmiapsrv.vir

Deletes the following files:

%PROGRAM_FILES%\Windows NT\Accessories\wordpad.vir
<SYSTEM32>\Restore\rstrui.vir
%CommonProgramFiles%\Microsoft Shared\MSInfo\msinfo32.vir
<SYSTEM32>\spider.vir
<SYSTEM32>\mshearts.vir
<SYSTEM32>\odbcad32.vir
<SYSTEM32>\usmt\migwiz.vir
<SYSTEM32>\sndrec32.vir
<SYSTEM32>\mstsc.vir
<SYSTEM32>\calc.vir
<SYSTEM32>\ntbackup.vir
<SYSTEM32>\mspaint.vir
<SYSTEM32>\sndvol32.vir
%PROGRAM_FILES%\MSN\MSNCoreFiles\Install\msnsusii.vir
%PROGRAM_FILES%\FireFox\mangle.vir
%PROGRAM_FILES%\FireFox\js.vir
%PROGRAM_FILES%\FireFox\firefox.vir
%PROGRAM_FILES%\FireFox\plugin-container.vir
%PROGRAM_FILES%\FireFox\nsinstall.vir
%WINDIR%\assembly\NativeImages_v4.0.30319_32\index1b.dat
%PROGRAM_FILES%\FireFox\crashreporter.vir
C:\Far2\Far.vir
<SYSTEM32>\wupdmgr.vir
%PROGRAM_FILES%\Movie Maker\moviemk.vir
%CommonProgramFiles%\Microsoft Shared\Speech\sapisvr.vir
%CommonProgramFiles%\Microsoft Shared\DW\DWTRIG20.vir
%CommonProgramFiles%\Microsoft Shared\DW\DW20.vir
<SYSTEM32>\accwiz.vir
<SYSTEM32>\msiexec.vir
<SYSTEM32>\mnmsrvc.vir
<SYSTEM32>\imapi.vir
<SYSTEM32>\locator.vir
<SYSTEM32>\sessmgr.vir
<SYSTEM32>\netdde.vir
%WINDIR%\Microsoft.NET\Framework\v3.0\Windows Communication Foundation\infocard.vir
<SYSTEM32>\clipsrv.vir
<SYSTEM32>\cisvc.vir
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\aspnet_state.vir
<SYSTEM32>\dmadmin.vir
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.vir
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\mscorsvw.vir
<SYSTEM32>\scardsvr.vir
%PROGRAM_FILES%\Outlook Express\wab.vir
<SYSTEM32>\utilman.vir
<SYSTEM32>\osk.vir
%PROGRAM_FILES%\Outlook Express\msimn.vir
<SYSTEM32>\mobsync.vir
%PROGRAM_FILES%\Windows Media Player\wmplayer.vir
<SYSTEM32>\narrator.vir
<SYSTEM32>\vssvc.vir
<SYSTEM32>\tlntsvr.vir
<SYSTEM32>\smlogsvc.vir
<SYSTEM32>\magnify.vir
%WINDIR%\Microsoft.NET\Framework\v4.0.30319\WPF\wpffontcache_v0400.vir
<SYSTEM32>\wbem\wmiapsrv.vir

Moves the following files:

from %WINDIR%\assembly\NativeImages_v4.0.30319_32\Temp\ca4-0\MSBuild.exe to %WINDIR%\assembly\NativeImages_v4.0.30319_32\MSBuild\aa25092606e5e9826db7a7bd0adb9b2b\MSBuild.ni.exe

Miscellaneous:

Searches for the following windows:

ClassName: 'Shell_TrayWnd' WindowName: '(null)'

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

アンチウイルスに関する誤解と噂

Technical Information