Tajfun Virus


 Virus Name:  Tajfun    
 Aliases:     Tajfun 1.0, Tajfun.250 
 V Status:    New 
 Discovered:  July, 1994 
 Symptoms:    .COM file growth; file date/time changes 
 Origin:      Unknown 
 Eff Length:  250 Bytes 
 Type Code:   PNCK - Parasitic Non-Resident .COM Infector 
 Detection Method:  F-Prot, AVTK, Sweep, IBMAV, ViruScan, NAVDX, 
                    VAlert, NAV, 
                    NProt, AVTK/N, Sweep/N, IBMAV/N, NShld, NAV/N 
 Removal Instructions:  Delete infected files 
 
 General Comments: 
       The Tajfun, Tajfun 1.0, or Tajfun.250, virus was received in July, 
       1994.  Its origin or point of isolation is unknown.  Tajfun is a 
       non-resident, direct action .COM infector, including COMMAND.COM. 
       It doesn't appear to do anything besides replicate. 
 
       When a program infected with the Tajfun virus is executed, this 
       virus will infect all of the .COM programs located in the current 
       directory.  Infected programs will have a file length increase of 
       250 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.  The following text strings are visible within the viral 
       code in all infected programs: 
 
               "*.com" 
               "tajfun1.0"

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