Virus Name: UnExe
V Status: New
Discovered: January, 1993
Symptoms: .COM file growth; file date/time changes; .EXE files deleted
Eff Length: 425 Bytes
Type Code: PNCK - Parasitic Non-Resident .COM Infector
Detection Method: ViruScan, F-Prot, AVTK, Sweep, NAV, IBMAV,
NAVDX, VAlert, ChAV,
NShld, NProt, Sweep/N, NAV/N, AVTK/N, IBMAV/N, Innoc
Removal Instructions: Delete infected Files
The UnExe virus was submitted in January, 1993. UnExe is a non-
resident, direct action infector of .COM programs, including
COMMAND.COM. It also deletes .EXE programs.
When a program infected with the UnExe virus is executed, the
UnExe virus will infect one .COM program located in the current
directory. If COMMAND.COM is located in this directory, it may
become infected. Infected programs will have a file length increase
of 425 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 strings are visible within the UnExe
viral code in all UnExe infected programs:
The UnExe virus will delete one .EXE program located in the current
directory each time an infected program is executed.