Win32/Cycbot is a backdoor trojan that allows attackers unauthorized access and control of an affected computer. After a computer is infected, the trojan connects to a specific remote server to receive commands from attackers. The commands may include instructing the trojan to update itself, visit web links, or download and execute arbitrary files. The trojan may also allow attackers to perform other backdoor functions, such as launching denial of service (DoS) attacks and retrieving system information from infected computers.