Iper Virus

 Virus Name:  Iper 
 V Status:    Rare 
 Discovered:  November, 1992 
 Symptoms:    .COM file growth 
 Origin:      Unknown 
 Eff Length:  1,062 Bytes 
 Type Code:   PNCK - Parasitic Resident .COM Infector 
 Detection Method:  ViruScan, AVTK, F-Prot, Sweep, IBMAV, 
                    NAV, NAVDX, VAlert, PCScan, ChAV, 
                    NShld, Sweep/N, NProt, AVTK/N, NAV/N, IBMAV/N, Innoc 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Iper virus was received in November, 1992.  Its origin or point 
       of isolation is unknown.  Iper is a non-resident, direct action 
       infector of .COM programs, including COMMAND.COM. 
       When a program infected with the Iper virus is executed, the Iper 
       virus will infect one previously uninfected .COM file.  This .COM 
       file may be located in the C: drive DOS directory, the C: drive 
       root drive, or on the current drive.  Iper doesn't infect more than 
       five .COM files in any given directory on the system hard disk, and 
       no more than three .COM files on diskettes.  Infected programs will 
       have a file length increase of 1,062 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.  Two text strings 
       are visible within the viral code in infected programs: 
       The "IPER" text string appears very close to the end of the file. 
       It is unknown what Iper does besides replicate. 

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