Appendix Section

A-02. Perl Code for NETSCRIPT.PL



Author is David LeBlanc <dleblanc@iss.net>

------------- start netcheck.pl(Win NT Version) ---------------------------
if(length($ARGV[0]) == 0)
{
  print "Usage is perl netcheck.pl IP";
  exit 0;
}

open(NBT, "nbtstat -a ".$ARGV[0]." | ");
while()
{
  if(!grep(/Registered/, $_))
  {
    if(grep(/<00>  UNIQUE/,$_))
    {
      @machine = split(/\s/, $_);
    }
    if(grep(/<00>  GROUP/, $_))
    {
      @domain = split(/\s/, $_);
    }
  }
}

print "Machine = ".$machine[0]."\tDomain = ".$domain[0]."\n";

print "\nChecking Guest Access\n";
open(GUESTCHK, "net use \\\\".$ARGV[0]."\\ipc\$ /user:guest guest | ");
while()
{
  if(grep(/error/,$_))
  {
    print("Guest access denied\n");
  }
}

print "\nObtaining list of shares\n";

open(NTSH, "net view \\\\".$ARGV[0]." | ");
while()
{
  if(grep(/Disk/,$_))
  {
    @tmp = split(/\s/, $_);
    push(@shares, $tmp[0]);
  }
  print;
}

foreach $share (@shares)
{
  open(NETUSE, "net use \\\\".$ARGV[0]."\\".$share." | ");
  while()
  {
    if(grep(/successfully/,$_))
    {
      print $share." opened\n";
    }
  }
}

-------------  end netcheck.pl(Win NT Version)  ---------------------------

------------- start netcheck.pl(Win 95 Version) ---------------------------

if(length($ARGV[0]) == 0)
{
  print "Usage is perl netcheck.pl IP";
  exit 0;
  }

open(NBT, "nbtstat -A ".$ARGV[0]." | ");

while()
{
print;
if(grep(/Registered/, $_))
  {
   if(grep(/<00>  UNIQUE/,$_))
    {
     @machine = split(/\s/, $_);
    }
     if(grep(/<00>  GROUP/, $_))
      {
       @domain = split(/\s/, $_);
      }
   }
}

print "Machine = ".$machine[0]."\tDomain = ".$domain[0]."\n";

print "\nChecking Guest Access\n";
open(GUESTCHK, "net use \\\\".$ARGV[0]."\\ipc\$ /user:guest guest | ");
while()
{
  if(grep(/error/,$_))
  {
    print("Guest access denied\n");
  }
}

print "\nObtaining list of shares\n";

open(NTSH, "net view \\\\".$machine[0]." | ");
while()
{
 if(grep(/Disk/,$_))
  {
   @tmp = split(/\s/, $_);
   push(@shares, $tmp[0]);
  }
 print;
}

foreach $share (@shares)
{
open(NETUSE, "net use \\\\".$machine[0]."\\".$share." | ");
while()
 {
  if(grep(/successfully/,$_))
   {
   print $share." opened\n";
   }
 }
}
-------------  end netcheck.pl(Win 95 Version)  ---------------------------





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