Virus Name: Magician
V Status: Rare
Discovered: July, 1994
Symptoms: .COM & .EXE growth;
decrease in total system & available free memory
Eff Length: 980 - 996 Bytes
Type Code: PRhAK - Parasitic Resident .COM & .EXE Infector
Detection Method: F-Prot, IBMAV, AVTK, ViruScan, Sweep,
NAV, NAVDX, VAlert,
AVTK/N, Sweep/N, NProt, IBMAV/N, NShld, NAV/N
Removal Instructions: Delete infected files
The Magician virus was received in July, 1994. Its origin or point
of isolation is unknown. Magician is a memory resident infector of
.COM and .EXE files, including COMMAND.COM.
When the first Magician infected program is executed, this virus
will install itself memory resident at the top of system memory but
below the 640K DOS boundary, not moving interrupt 12's return. Total
system and available free memory, as indicated by the DOS CHKDSK
program, will have decreased by 3,008 bytes. Interrupts 09 and 21
will be hooked by the virus in memory.
Once the Magician virus is memory resident, it will infect .COM and
.EXE files when they are executed. Infected .COM files will increase
in size by 980 bytes with the virus being located at the beginning of
the file. Infected .EXE files will increase in size by 980 to 996
bytes with the virus being located at the end of the file. The file's
date and time in the DOS disk directory listing will not be altered.
The following text strings are encrypted within the Magician viral
"The Black Magician. Copyright (c) 1991"
"KEYBUG from The Black Magician"