ARF-ARF

A very early Trojan Horse designed for the IBM PC called ARF-ARF was downloaded from BBS sites and claimed to “Sort” the DOS Diskette Directory. This was a very desirable feature because DOS didn’t list the files in alphabetical order in 1983. Instead, the program deleted all of the files on the diskette, cleared the screen and typed ARF – ARF. ARF was a reference to the common “Abort, Retry Fail” message you would get when a PC could not boot from a diskette.