Pirate 1344 Virus

Virus Name: Pirate 1344 Aliases: V Status: Rare Discovered: October, 1993 Symptoms: .EXE file growth; program execution failure; Decrease in total system & available free memory; "Program too big to fit in memory" message Origin: Unknown Eff Length: 1,344 - 1,358 Bytes Type Code: PRhE - Parasitic Resident .EXE Infector Detection Method: ViruScan, F-Prot, AVTK, Sweep, IBMAV, NAV, NAVDX, VAlert, NShld, Sweep/N, IBMAV/N, AVTK/N, NProt, NAV/N Removal Instructions: Delete infected files General Comments: The Pirate 1344 virus was received in October, 1993. Its origin or point of isolation is unknown. Pirate 1344 is a memory resident infector of .EXE programs. When the first Pirate 1344 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. Total system and available free memory, as indicated by the DOS CHKDSK program, will have decreased by 1,344 bytes. Interrupts 09 and 21 will be hooked by the virus in memory. Once the Pirate 1344 virus is memory resident, it will infect .EXE programs when they are executed. Infected programs will have a file length increase of 1,344 to 1,358 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 string is visible within the viral code in all Pirate 1344 infected programs: "PirateMZ" Characters from system memory may occassionally be displayed on the system monitor on infected monochrome systems. Execution of some programs may fail with the following message: "Program too big to fit in memory" Pirate 1344 does not appear to be related to the Pirate virus described in another entry.