Dreb Trojan

This trojan is quite dangerous for those, who have no good defence on their PCs. This spyware pretends being antiviral computer, very similar to 'DrWeb'. After the user of the infected computer presses the 'Find Viruses And Kill Them' button, Dreb Trojan searches for WIN.COM and COMMAND.COM files and removes them. This action usually leads to improper working of the operational computer.