Bots (search engine robots) are small programs capable of performing almost any task and "making it a rule" to run and work on a computer "automatically", without any help from a person. Initially, the creators intended them for good purposes, but today, unfortunately, bots are often used exactly the opposite. So, with their help, they collect email addresses and send spam, "clog" the Internet channel with unnecessary information, including advertising, run virus and spyware programs into computers, DoS attacks and cause a lot of other harm.
Instructions
Step 1
For any user, the “appearance” of a robot is extremely unpleasant news, since the result of this meeting may result in dozens of over-planned megabytes of traffic, as well as the “skidding” of the affected machine to the black list and, as a result, problems with sending mail. Take advantage of the latest anti-virus protection programs, many of them are quite capable of coping with the task at hand.
Step 2
However, it is often quite difficult to detect bots using an antivirus, especially if this defender is used for free, and therefore in a "stripped down" form. Experts believe that it is possible to detect unwanted guests without it, because even with ideal rootkit disguise (once the code gets into the system, the code is immediately disguised as an "honest" program) bots are caught sending spam. Diagnose the network with a sniffer in order to see what is going on there and try to detect an infected object. At the same time, which network analyzer you choose does not matter at all, as long as it can reconstruct TCP sessions and also accumulate statistics. By the way, you can catch email worms sending out their copies in a similar way.
Step 3
True, this program is not ideal either - the sniffer is too large for online scanning of the computer and it needs installation. But nothing prevents you from using the appropriate utility, which is able not only to detect unplanned network activity, but also to identify its source.
Step 4
In addition, you can try to check with your own hands whether you have an unauthorized IRC connection by inspecting your network connections. If they are active, then it is likely that your machine is infected.
Step 5
Be sure to check other ports using IRC as well. If you find a key indicating the presence of a bot, you must remove it, restart your computer, and then get rid of the "occupier".
