$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 \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[$CharSet-1]$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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