Troj/HideDial-E is a dialler-related Trojan.
Troj/HideDial-E drops and runs a dialler (detected by Sophos as Dial/Tibsys-A) which attempts to connect to a premium-rate phone number for pornographic material. The Trojan runs in the background and attempts to conceal the dialler application by hiding windows that the dialler would usually display.
Troj/Riler-F is a backdoor Trojan.
Troj/Riler-F provides a remote command shell allows an attacker to run arbitrary commands on the infected system.