Legal Disclaimer

Hacking For Beginners – Manthan Desai 2010
Detecting ‘live’ systems on target network
Why Detecting ‘live’ systems on tagret network ?
To determine the perimeter of the target network /system
To facilitate network mapping
To build an inventory of accessible systems on target network
Tools used for this
War Dialers
Ping Utilities
War Dialers
A war dialer is a tool used to scan a large pool of telephone numbers to detect vulnerable modems to provide
access to the system.
A demon dialer is a tool used to monitor a specific phone number and target its modem to gain access to the
system.
Threat is high in systems with poorly configured remote access products providing entry to larger networks.
Tools include THC-Scan, ToneLoc, TBA etc.
The term war dialing implies the exploitation of an organization's telephone, dial, and private branch exchange (PBX)
systems to infiltrate the internal network and use of computing resources during the actual attack. It may be surprising
why we are discussing war dialing here as more PBX systems are coming with increased security configurations. However,
the fact remains that there are as many insecure modems out there that can be compromised to gain access into the
target system. What had initially caught the fancy of hackers in the movie 'war games', still manages to find carriers
leading to compromise of systems. The war dialer in War Games is not very sophisticated as it only finds phone numbers
which are suspected to be computer dial-in lines. A more aggressive version might actually attempt to determine the
operating system, and a very aggressive version might attempt to perform some automated break -in attempts itself. If A
real scanner with this functionality will attempt to analyze the carrier information, the negotiation and presence of
protocols and/or banners to attempt to determine the remote system. It will then attempt to use default
username/password combinations for that system.
w w w . h a c k i n g t e c h . c o . t v Page 81