sha1crack.pl

#!/usr/bin/perl
#=======================================================================#
# This is a modified version of md5crack.pl availble from 		#
# ttp://www.securiteam.com/tools/5OP0F0UKKG.html deigned to crack 	#
# SHA1 hashes 								#
# SHA1 Hash Bruteforce							#	
# By: toast								#
# This is like I mentioned a modified version of MD5 Hash 		#
# Bruteforce Kit availible from						# 
# http://www.securiteam.com/tools/5OP0F0UKKG.html 			#
# I did type it up myself but I used MD5 Hash Bruteforce Kit as a 	#
# model and template.							#
# Written under Slackware linux tested and working			#
# ======================================================================#
$tmr = '1';
 
if ($tmr<=0){ die  "Set tmr to a value >=1 !n";};
use Digest::SHA1 qw(sha1_hex);
use Time::HiRes qw(gettimeofday);
 
if ($ARGV[0]=~"A") {
	$alph = "QWERTYUIOPASDFGHJKLZXCVBNM";}
if ($ARGV[0]=~"a") {
	$alph = $alph. "qwertyuiopasdfghjklzxcvbnm";}
if ($ARGV[0]=~"s") {
	$alph = $alph. "1234567890";}
if ($ARGV[0]=~"d") {
	$alph = $alph. "`~!@#$%^&*()-_=+[]\{}|;:,.<>/? ";}
 
if ($alph eq "" or $ARGV[3] eq "") {usage();};
if (length($ARGV[3]) != 40) { die "That is not a valid SHA1 hashn";};
 
print "Select charset for attack: '$alph'n";
print "Going to crack '$ARGV[3]'n";
 
for (my $t=$ARGV[1];$t<=$ARGV[2];$t++){crack($t);}
 
sub usage{
	print "nSHA1 Hash Bruteforce Kitn";
	print "Usagen";
	print "perl sha1crack.pl <charset> <mincount> <maxcount> <SHA1 to crack>n";
	print " Charset can be: [Aasd]n";
	print " A = {'A','b','c',...}n";
	print " a = {'a','b','c',..}n";
	print " s = {'0','1','2','3',...}n";
	print " d = {'`','~','!','@','#',...}n";
	print "Example for cracking SHA1 hashn";
	print "perl sha1crack.pl Aa 1 5 4e7afebcfbae000b22c7c85e5560f89a2a0280b4n";
	print " This will try to crack the hash useing only with capitol alphas and lowercase alphasn";
	print " and only those between one and five characters long.n";
	print " perl sha1crack.pl Aasd 1 7 f18200a905e60dcc22c37cb39b29844ee5320550n";
	print " This will try to crack the hash useing all the charactersn";
	print " but will only try cracking passwords between one and seven characters longn";
	die "exitingn";
}
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($alph)-1){
				if ($i==$charset-1){
					print "Bruteforcing done with $charset chars. No results.n";
					$cnt=0;
					return 0;
				}
				$rawstring[$i+1]++;
				$rawstring[$i]=0;
			}
		}
#========================================================================#  
		$ret = "";
		for (my $i =0;$i<$charset;$i++){ $ret = $ret . substr($alph,$rawstring[$i],1);}
		$hash = sha1_hex($ret);
		$cnt++;
		$stop = gettimeofday();
		if ($stop-$start>$tmr){
			$cnt = int($cnt/$tmr);
			print "$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 is -> $retn";
		}
#========================================================================#
		$rawstring[0]++;
	}
	while($rawstring[$charset-1]<length($alph));
}
 
sub checkhash{
	$charset = shift;
	$ret = "";
	for (my $i =0;$i<$charset;$i++){ $ret = $ret . substr($alph,$rawstring[$i],1);}
	$hash = sha1_hex($ret);
	$cnt++;
	$stop = gettimeofday();
	if ($stop-$start>$tmr){
		$cnt = int($cnt/$tmr);
		print "$cnt hashes\second.tLast pass '$ret'n";
		$cnt=0;
		$start = gettimeofday();
	}
	if ($ARGV[3] eq $hash){
		die "nPassward is -> $retn";
	}
}