How to hack Http, ftp, router Passwords?

A brute-force attack is nothing more than guessing a user ID/password combination.
use brute force attack tools like THC-Hydra, Brutus.


1.) THC-Hydra:
THC-Hydra is a remote dictionary attack tool from The Hacker's Choice group.
It's a well made tool that supports a lot of protocols and options. The following
protocols are supported: TELNET, FTP, HTTP, HTTPS, HTTP-PROXY, SMB,
SMBNT, MS-SQL, MYSQL, REXEC, RSH, RLOGIN, CVS, SNMP, SMTPAUTH,
SOCKS5, VNC, POP3, IMAP, NNTP, PCNFS, ICQ, SAP/R3, LDAP2,
LDAP3, Postgres, Teamspeak, Cisco auth, Cisco enable, LDAP2, Cisco AAA.

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2.) Brutus:
Brutus is one of the fastest, most flexible remote password crackers you can get your hands on -
it's also free. It is available for Windows 9x, NT and 2000, there is no UNIX version available
although it is a possibility at some point in the future. Brutus was first made publicly available in
October 1998 and since that time there have been at least 70,000 downloads and over 175,000
visitors to this page. Development continues so new releases will be available in the near future.
Brutus was written originally to help check routers etc. for default and common passwords.
Brutus version AET2 is the current release and includes the following authentication types :
HTTP (Basic Authentication)
HTTP (HTML Form/CGI)
POP3
FTP
SMB
Telnet
Other types such as IMAP, NNTP, NetBus etc are freely downloadable from this site and
simply imported into your copy of Brutus. You can create your own types or use other peoples.
The current release includes the following functionality :
Multi-stage authentication engine
60 simultaneous target connections
No username, single username and multiple username modes

Password list, combo (user/password) list and configurable brute force modes
Highly customisable authentication sequences
Load and resume position
Import and Export custom authentication types as BAD files seamlessly
SOCKS proxy support for all authentication types
User and password list generation and manipulation functionality
HTML Form interpretation for HTML Form/CGI authentication types
Error handling and recovery capability inc. resume after crash/failure.


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