Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\<File name>.vbs
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\regasm.exe
Modifies file system
Creates the following files
- %TEMP%\dynwrapx.dll
Network activity
UDP
- DNS ASK sn#####om94.hopto.org
Miscellaneous
Executes the following
- '%WINDIR%\syswow64\wscript.exe' //b //e:vbscript "<PATH_SAMPLE>.vbs"
- '%WINDIR%\syswow64\regsvr32.exe' /I /S "%TEMP%\dynwrapx.dll"
- '%WINDIR%\microsoft.net\framework\v4.0.30319\regasm.exe'
- '%WINDIR%\syswow64\regsvr32.exe' /I /S "%TEMP%\dynwrapx.dll"' (with hidden window)
