Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\Client.exe
Malicious functions:
Injects code into
the following system processes:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
Modifies file system:
Creates the following files:
- %TEMP%\s2gy25h8.out
- %TEMP%\vbc1.tmp
- %TEMP%\RES2.tmp
- %TEMP%\yZwfRtNHu.txt
- %TEMP%\s2gy25h8.0.vb
- %TEMP%\s2gy25h8.cmdline
Deletes the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\Client.exe
Network activity:
Connects to:
- 'no####pp.hopto.org':1177
UDP:
- DNS ASK no####pp.hopto.org
Miscellaneous:
Creates and executes the following:
- '%HOMEPATH%\Start Menu\Programs\Startup\Client.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\s2gy25h8.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe'
