Random Virus

Virus Name: Random Aliases: V Status: Rare Discovery: January, 1993 Symptoms: .COM file growth; decrease in total system & available free memory Origin: Australia Eff Length: 615 Bytes Type Code: PRhCK - Parasitic Resident .COM Infector Detection Method: ViruScan, F-Prot, Sweep, NAV, IBMAV, AVTK, NAVDX, VAlert, PCScan, ChAV, NShld, Sweep/N, NAV/N, NProt, AVTK/N, IBMAV/N, Innoc, LProt Removal Instructions: Delete infected files General Comments: The Random virus was submitted in March, 1993, following its discovery in Melbourne, Australia in January, 1993. Random is a memory resident infector of .COM programs, including COMMAND.COM. The first time a program infected with the Random virus is executed, the Random virus will install itself memory resident at the top of system memory but below the 640K DOS boundary, hooking interrupt 21. Total system and available free memory, as indicated by the DOS CHKDSK program, will decrease by 624 bytes. Interrupt 12's return will not be moved. Once the Random virus is memory resident, it will infect .COM programs when they are executed. If COMMAND.COM is executed, it will become infected. Programs infected with the Random virus will have a file length increase of 615 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 strings are visible within the viral code in all Random infected programs: "A Kevin Mitnick" "U Lenny DiCcoco" "S Hans Hubner" "T 414's" ". Legion of Doom" " Phiber Optik" "P Dr Popp" " Robert Morris" "1 Shooting Shark" "9 Chesire Catalyst" "9 Captain Crunch" "2 Ron Austin" " Kevin Poulsen" "are all to be congratulated"