Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\WjDWA.exe
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\WjDWA.exe
Malicious functions:
Executes the following:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\CSC1.tmp"
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\csc.exe /noconfig /fullpaths @"%TEMP%\x9h11abn.cmdline"
Modifies file system :
Creates the following files:
- %TEMP%\CSC1.tmp
- %TEMP%\RES2.tmp
- %TEMP%\x9h11abn.dll
- %TEMP%\x9h11abn.out
- %APPDATA%\svchost.exe
- %TEMP%\x9h11abn.0.cs
- %TEMP%\x9h11abn.cmdline
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\WjDWA.exe
Deletes the following files:
- %TEMP%\x9h11abn.0.cs
- %TEMP%\x9h11abn.dll
- %TEMP%\x9h11abn.out
- %TEMP%\RES2.tmp
- %TEMP%\CSC1.tmp
- %TEMP%\x9h11abn.cmdline
