Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'wextract_cleanup0' = 'rundll32.exe <SYSTEM32>\advpack.dll,DelNodeRunDLL32 "%TEMP%\IXP000.TMP\"'
Malicious functions:
Creates and executes the following:
- '%TEMP%\IXP000.TMP\setup.exe'
- '%TEMP%\IXP000.TMP\server.exe'
- '%WINDIR%\setup.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v4.0.30319\dfsvc.exe'
Modifies file system :
Creates the following files:
- %TEMP%\IXP000.TMP\setup.exe
- %TEMP%\IXP000.TMP\server.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\CAUDQR4B.log
- %TEMP%\VSD1.tmp\install.log
- %WINDIR%\setup.exe
- %WINDIR%\Installation.exe.manifest
- %WINDIR%\Installation.exe.config
- %WINDIR%\Installation.application
Deletes the following files:
- %TEMP%\IXP000.TMP\server.exe
- %TEMP%\IXP000.TMP\setup.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'EDIT' WindowName: '(null)'
