To complicate detection of its presence in the operating system,
forces the system hide from view:
hidden files
file extensions
Executes the following:
'<SYSTEM32>\wscript.exe' "<SYSTEM32>\s4c.vbs"
Modifies file system :
Creates the following files:
<SYSTEM32>\s4c.vbs
C:\autorun.inf
%TEMP%\desktop.ini
%TEMP%\svchost.exe
%WINDIR%\sp.htm
Sets the 'hidden' attribute to the following files:
C:\ntldr.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\ntldr.exe
%TEMP%\svchost.exe
%TEMP%\desktop.ini
C:\autorun.inf
Deletes the following files:
<SYSTEM32>\s4c.vbs
Network activity:
Connects to:
'dl####.dropbox.com':443
'wp#d':80
TCP:
HTTP GET requests:
wp#d/wpad.dat
UDP:
DNS ASK dl####.dropbox.com
DNS ASK wp#d
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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