PC Flu Virus


 Virus Name:  PC Flu 
 Aliases:     Flu 
 V Status:    Rare 
 Discovered:  November, 1991 
 Symptoms:    .COM & .EXE growth 
 Origin:      Unknown 
 Eff Length:  802 Bytes 
 Type Code:   PRfCK - Parasitic Resident .COM Infector 
 Detection Method:  ViruScan, Sweep, AVTK, F-Prot, IBMAV, 
                    NAV, NAVDX, VAlert, PCScan, ChAV, 
                    NShld, LProt, Sweep/N, Innoc, NProt, AVTK/N, NAV/N, 
                    IBMAV/N 
 Removal Instructions:  Delete infected files 
                       
 General Comments: 
       The PC Flu virus was received from Europe in November, 1991.  Its 
       origin is unknown.  PC Flu is a memory resident infector of .COM 
       programs, including COMMAND.COM. 
 
       The first time a program infected with PC Flu is executed, PC Flu 
       will become memory resident in low system available free memory, 
       hooking interrupt 21.  Total system and available free memory will 
       not be changed. 
 
       Once PC Flu is memory resident, it will infect .COM programs, 
       including COMMAND.COM, when they are executed or opened for any 
       reason.  Programs infected with PC Flu will have increased in size 
       by 802 bytes.  The virus will be located at the end of the infected 
       file.  The following text string will be found near the end of all 
       infected programs: 
 
               "PC-FLU by WIZARD 1991" 
 
       It is unknown what PC Flu does besides replicate. 
 
       See:   PC Flu-2 

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