Virus Name: Lost_Friend
V Status: New
Discovered: January, 1996
Symptoms: .EXE file growth; decrease in available free memory;
Eff Length: 882 Bytes
Type Code: PRhE - Parasitic Resident .EXE Infector
Detection Method: NAV, NAVDX, IBMAV, ViruScan, AVTK, F-Prot, ChAV,
NAV/N, IBMAV/N, AVTK/N, NShld, Innoc 4.0+
Removal Instructions: Delete infected files
The Lost_Friend virus was received in January, 1996. Its origin or
point of isolation is unknown. Lost_Friend is a memory resident
infector of .EXE files.
When the first Lost_Friend 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.
Available free memory, as indicated by the DOS CHKDSK program from
DOS 5.0, will have decreased by 1,168 bytes. Interrupt 21 will be
hooked by the virus in memory.
Once the Lost_Friend virus is memory resident, it will infect .EXE
files when they are executed. Infected .EXE files will have a file
length increase of 882 bytes with the virus being located at the end
of the file. The program's date and time in the DOS disk directory
listing will not be altered. The following text strings are
encrypted within the viral code:
"Daniel, why did you have to die so young ? I will never
forget you my friend!"
"Your ashes in the wind,
free to travel anywhere,
a soul out of a dead body
like a bird rising so high
away reaching the blue sky,
to a place called paradise,
your first step to eternity,
leaving behind pain and misery.
[LOST FRIEND] 1995 by CoKe
To LYNN, my love, and to MANDY, a true friend !"
System hangs frequently occur when infected programs are executed.