Kipa Virus

Virus Name: Kipa Aliases: V Status: New Discovered: January, 1995 Symptoms: .COM & .EXE growth; decrease in available free memory (DOS 5.0) Origin: USSR Eff Length: 1,084 - 1,098 Bytes Type Code: PRhAK - Parasitic Resident .COM & .EXE Infector Detection Method: F-Prot, AVTK, IBMAV, Sweep, ViruScan, NAV, NAVDX, VAlert, PCScan, ChAV, AVTK/N, IBMAV/N, Sweep/N, NShld, NAV/N, Innoc 4.0+ Removal Instructions: Delete infected files General Comments: The Kipa virus was received in January, 1995. It appears to be from Moscow. Kipa is a memory resident infector of .COM and .EXE files, including COMMAND.COM. When the first Kipa 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 5.0 CHKDSK program, will have decreased by approximately 2,064 bytes. Interrupt 21 will be hooked by the virus in memory. Once the Kipa virus is memory resident, it will infect .COM and .EXE files, including COMMAND.COM, when they are executed. Infected programs will have a file length increase of 1,084 to 1,098 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 string is visible within the viral code in all Kipa infected programs: "The KIPA new Version 3.1 copyright (c) 1993 by Sergey Hacker,Moscow;15 years old" It is unknown what Kipa may do besides replicate.