Internet TCP port 12345 is commonly associated with the NetBus trojan, a software program for remotely controlling a Microsoft Windows system. It is also used by the ITA Agent, a software application that provides remote management and control capabilities. Additionally, some instances of the W32.Spybot worm also use this port. However, it's important to note that any software can be configured to use any port, so these are not the only possible uses.
TCP port 12345 is infamously known for its association with the NetBus trojan, a software program that allows a user to control a computer remotely. Hackers have exploited this port in the past to install the trojan without the user's knowledge. Once installed, the hacker can access and manipulate the victim's system, including keystrokes logging, file system browsing, and even screen capturing. The port is also used by the trojan to communicate with the hacker's system. Therefore, it's crucial to keep this port secured and monitored for any suspicious activities.