July 26TH Virus

 Virus Name:  July 26TH 
 V Status:    Rare 
 Discovered:  September, 1992 
 Symptoms:    .COM file growth; file date/time changes; overwrites current 
              drive on July 26th 
 Origin:      Italy 
 Eff Length:  205 Bytes 
 Type Code:   PNCK - Parasitic Non-Resident .COM Infector 
 Detection Method:  ViruScan, Sweep, AVTK, F-Prot, IBMAV, 
                    NAV, NAVDX, VAlert, PCScan, 
                    NShld, Sweep/N, AVTK/N, NProt, IBMAV/N, NAV/N 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The July 26TH virus was received in September, 1992.  From its 
       original submission, it appears to have been isolated in Italy. 
       This virus is a non-resident direct action infector of .COM 
       programs, including COMMAND.COM.  It is destructive when it 
       activates on July 26th of any year. 
       When a program infected with the July 26TH virus is executed, this 
       virus will infect all of the .COM programs located in the current 
       directory.  If COMMAND.COM is located in this directory, it will 
       become infected.  Programs infected with the July 26TH virus will 
       have a file length increase of 205 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 have been updated to the current 
       system date and time when infection occurred.  One text string is 
       visible in the viral code in infected programs: 
       The July 26TH virus activates when an infected program is executed 
       on July 26th of any year.  At that time, the virus will overwrite 
       the current drive, rendering it inaccessible. 

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