PH33R Virus

Virus Name: PH33R Aliases: PH33R.1332 V Status: Common Discovered: January, 1996 Symptoms: .COM & .EXE growth; decrease in available free memory Origin: Australia Eff Length: 1,332 Bytes Type Code: PRhAK - Parasitic Resident .COM & .EXE Infector Detection Method: F-Prot, AVTK, IBMAV, ViruScan, NAV, NAVDX, PCScan, AVTK/N, IBMAV/N, NShld, NAV/N Removal Instructions: Delete infected files General Comments: The PH33R virus was received in January, 1996 and appears to be from Australia. This virus is a memory resident infector of .COM and .EXE files, including COMMAND.COM. It has been reported to be "in the wild" in North America. When the first PH33R 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 2,672 bytes. Interrupt 21 will be hooked by the virus in memory. Once the PH33R 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 1,332 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 visible within the viral code: "Ph33r" "Qark/VLAD" It is unknown what this virus may do besides replicate. See: Vlad