It copied itself several times and hid the copies in several folders on the victim's hard drive.
It added new files to the victim's registry keys.
It replaced several different kinds of files with copies of itself.
It sent itself through internet Relay Chat clients as well as e-mail.
It downloaded a file called WIN-BUGSFIX.EXE from the Internet and executed it. Rather than fix bugs, this program was a passWord-stealing application that e-mailed secret information to the hacker's e-mail address.
