Virus Name: Quintessence
V Status: New
Discovery: January, 1996
Symptoms: .COM file growth; system hangs; file date/tme changes
Eff Length: 992 Bytes
Type Code: PNCK - Parasitic Non-Resident .COM Infector
Detection Method: F-Prot, AVTK, IBMAV, NAV, NAVDX, ViruScan, ChAV,
AVTK/N, IBMAV/N, NAV/N, NShld, Innoc
Removal Instructions: Delete infected files
The Quintessence virus was received in January, 1996. Its origin
or point of isolation is unknown. Quintessence is a non-resident,
direct action infector of .COM files, including COMMAND.COM.
When a program infected with the Quintessence virus is executed,
this virus will infect one .COM file located in the current
directory. Infected files will have a file length increase of 992
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 have
been updated to the current system date and time when infection
occurred. The following text string is visible within the viral
System hangs frequently occur when infected programs are executed.
Once the boot copy of COMMAND.COM becomes infected, the system
may fail to boot.