Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\Microsoft Update.lnk
Malicious functions:
Executes the following:
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen %TEMP%\VCNKUP.jpg
Modifies file system:
Creates the following files:
- %TEMP%\aut2.tmp
- %TEMP%\VCNKUP.jpg
- %TEMP%\aut1.tmp
- %TEMP%\xfuvqhf
Deletes the following files:
- %TEMP%\aut2.tmp
- %TEMP%\xfuvqhf
- %TEMP%\aut1.tmp
Network activity:
Connects to:
- 'sy######mulasar.ddns.net':4444
UDP:
- DNS ASK sy######mulasar.ddns.net