Mooc Virus

Virus Name: Mooc Aliases: Mooc.288, Control.Monkey V Status: New Discovered: July, 1995 Symptoms: .COM file growth; system hangs may occur Origin: Unknown Eff Length: 288 Bytes Type Code: PRaCK - Parasitic Resident .COM Infector Detection Method: F-Prot, AVTK, VAlert, NAVDX, Sweep, ViruScan, NAV, IBMAV, PCScan, ChAV, Sweep/N, NShld, NAV/N, IBMAV/N, AVTK/N, NProt, Innoc Removal Instructions: Delete infected files General Comments: The Mooc or Mooc.288 virus was received in July, 1995. Its origin or point of isolation is unknown. Mooc is a memory resident infector of .COM files, including COMMAND.COM. When the first Mooc infected program is executed, this virus will install itself memory resident in a buffer in allocated system memory, hooking interrupt 21. Total system and available free memory, as indicated by the DOS CHKDSK program, will not be altered. Once the Mooc virus is memory resident, it will infect .COM programs when they are executed. Infected .COM programs will have a file length increase of 288 bytes with the virus being located at the beginning of the file. The program's date and time in the DOS disk directory listing will not be altered. The following text string is visible within the viral code: "Monkeys out of Control" System hangs may occur when some very small infected .COM files are executed.