A war dialer is a tool that is used to scan thousands of telephone numbers to detect vulnerable modems. It provides an attacker unauthorized access to a computer. Which of the following tools can an…

THC-Scan is a war dialing tool developed by The Hacker's Choice that automates scanning large ranges of telephone numbers to identify modems, fax machines, and other answering systems. It logs and categorizes responses, giving attackers a structured map of potential dial-up access points that could provide unauthorized network entry.

NetStumbler is a wireless network (802.11 Wi-Fi) discovery and auditing tool that passively detects nearby access points over radio frequency - it has no capability to dial telephone numbers or detect modems.

ToneLoc is one of the original and most widely known war dialing utilities, designed to systematically dial telephone numbers and record which lines respond with modem carrier tones. It can identify PBX systems, dial-up modems, and voice-response systems, producing a list of targets for further exploitation.

Wingate is a proxy server and internet connection sharing application used to route network traffic, not a tool for scanning telephone number ranges or performing war dialing operations.