Superscan

SuperScan is a free connect-based port scanning software designed to detect open TCP and UDP ports on a target computer, determine which services are running on those ports, and run queries such as whois, ping, ICMP traceroute, and Hostname lookups.[1]

Superscan 4, which is a completely rewritten update to the other Superscan (version 3, released in 2000), features windows enumeration, which can list a variety of important information dealing with Microsoft Windows such as:

• NetBIOS information
• User and Group Accounts
• Network shares
• Trusted Domains
• Services - which are either running or stopped

Superscan is a tool used by system administrators, crackers and script kiddies to evaluate a computer's security. System administrators can use it to test for possible unauthorized open ports on their computer networks, whereas crackers use it to scan for a potentially insecure port in order to gain illegal access to a system.