RAT (remote access Trojan)
RAT (remote access trojan)
A remote access Trojan (RAT) is a malware program that includes a backdoor for administrative control of the target computer. RATs are usually downloaded invisibly with a program requested by the user, such as a game, or sent as an email attachment. Once the host system is compromised, the intruder can use it to distribute RATs to other vulnerable computers and establish a botnet.
Because a RAT enables administrative control, it makes it possible for the intruder to do almost anything on the selected computer, including:
Monitoring user behavior through keyloggers or other spyware.
Access to confidential information, such as credit cards and social security numbers.
Activate the webcam of a system and record video.
Distributing viruses and other malware.