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- #!/usr/bin/perl
- $ver = "01";
- $dbgtmr = "1"; #Intervall of showing the current speed + lastpassword in seconds.
- if ($dbgtmr<=0){ die "Set dbgtmr to a value >=1 !\n";};
- use Digest::MD5 qw(md5_hex);
- use Time::HiRes qw(gettimeofday);
- if ($ARGV[0]=~"a") {
- $alpha = "abcdefghijklmnopqrstuvwxyz";}
- if ($ARGV[0]=~"A") {
- $alpha = $alpha. "ABCDEFGHIJKLMNOPQRSTUVWXYZ";}
- if ($ARGV[0]=~"d") {
- $alpha = $alpha."1234567890";}
- if ($ARGV[0]=~"x") {
- $alpha = $alpha. "!\"\$%&/()=?-.:\\*'-_:.;,";}
- if ($alpha eq "" or $ARGV[3] eq "") {usage();};
- if (length($ARGV[3]) != 32) { die "Sorry but it seems that the MD5 is not valid!\n";};
- print "Selected charset for attack: '$alpha\'\n";
- print "Going to Crack '$ARGV[3]'...\n";
- for (my $t=$ARGV[1];$t<=$ARGV[2];$t++){
- crack ($t);
- }
- sub usage{
- print "\n\nMD5 Hash Bruteforce Kit v_$ver\n";
- print "by unix_chro alias backtrack (311733@yahoo.com)\n";
- print "Member in staff leader:elite-members,ubuntu-hackers\n\n";
- print "USAGE\n";
- print "./md5crack <charset> <mincount> <maxcount> <yourMD5>\n";
- print " Charset can be: [aAdx]\n";
- print " a = {'a','b','c',...}\n";
- print " A = {'A','B','C',...}\n";
- print " d = {'1','2','3',...}\n";
- print " x = {'!','\"',' ',...}\n";
- print "EXAMPLE FOR CRACKING A MD5 HASH\n";
- print "./md5crack.pl ad 1 3 900150983cd24fb0d6963f7d28e17f72\n";
- print " This example tries to crack the given MD5 with all lowercase Alphas and all digits.\n";
- print " MD5 Kit only tries combinations with a length from 1 and 3 characters.\n-------\n";
- print "./md5crack.pl aA 3 3 900150983cd24fb0d6963f7d28e17f72\n";
- print " This example tries to crack the given MD5 with all lowercase Alphas and all uppercase Alphas.\n";
- print " MD5 Kit only tries passwords which length is exactly 3 characters.\n-------\n";
- print "./md5crack.pl aAdx 1 10 900150983cd24fb0d6963f7d28e17f72\n";
- print " This example tries to crack the given MD5 with nearly every character.\n";
- print " MD5 Kit only tries combinations with a length from 1 to 10 characters.\n";
- die "Quitting...\n";
- }
- sub crack{
- $CharSet = shift;
- @RawString = ();
- for (my $i =0;$i<$CharSet;$i++){ $RawString[i] = 0;}
- $Start = gettimeofday();
- do{
- for (my $i =0;$i<$CharSet;$i++){
- if ($RawString[$i] > length($alpha)-1){
- if ($i==$CharSet-1){
- print "Bruteforcing done with $CharSet Chars. No Results.\n";
- $cnt=0;
- return false;
- }
- $RawString[$i+1]++;
- $RawString[$i]=0;
- }
- }
- ################################################## #
- $ret = "";
- for (my $i =0;$i<$CharSet;$i++){ $ret = $ret . substr($alpha,$RawString[$i],1);}
- $hash = md5_hex($ret);
- $cnt++;
- $Stop = gettimeofday();
- if ($Stop-$Start>$dbgtmr){
- $cnt = int($cnt/$dbgtmr);
- print "$cnt hashes\\second.\tLast Pass '$ret\'\n";
- $cnt=0;
- $Start = gettimeofday();
- }
- print "$ARGV[3] != $hash ($ret)\n";
- if ($ARGV[3] eq $hash){
- die "\n**** Password Cracked! => $ret\n";
- }
- ################################################## #
- #checkhash($CharSet)."\n";
- $RawString[0]++;
- }while($RawString[$CharSet-1]<length($alpha));
- }
- sub checkhash{
- $CharSet = shift;
- $ret = "";
- for (my $i =0;$i<$CharSet;$i++){ $ret = $ret . substr($alpha,$RawString[$i],1);}
- $hash = md5_hex($ret);
- $cnt++;
- $Stop = gettimeofday();
- if ($Stop-$Start>$dbgtmr){
- $cnt = int($cnt/$dbgtmr);
- print "$cnt hashes\\second.\tLast Pass '$ret\'\n";
- $cnt=0;
- $Start = gettimeofday();
- }
- if ($ARGV[3] eq $hash){
- die "\n**** Password Cracked! => $ret\n";
- }
- }
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