Easy Virus

 Virus Name:  Easy 
 Aliases:     Easy.200 
 V Status:    New 
 Discovered:  July, 1995 
 Symptoms:    .COM file growth; file date/time changes; 
              decrease in available free memory 
 Origin:      Unknown 
 Eff Length:  200 Bytes 
 Type Code:   PRhCK - Parasitic Resident .COM Infector 
 Detection Method: AVTK, VAlert, NAV, NAVDX, ViruScan, IBMAV, F-Prot, 
                   PCScan, ChAV, 
                   AVTK/N, NAV/N, IBMAV/N, NShld, Innoc 4.0+ 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Easy or Easy.200 virus was received in July, 1995.  Its origin 
       or point of isolation in unknown.  Easy is a memory resident 
       infector of .COM files, including COMMAND.COM. 
       When the first Easy 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.  Available 
       free memory, as indicated by the DOS CHKDSK program from DOS 5.0, 
       will have decreased by 208 bytes.  Interrupt 21 will be hooked by 
       the virus in memory. 
       Once the Easy virus is memory resident, it will infect .COM files 
       when they are executed.  Infected files will have a file length 
       increase of 200 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 string is visible 
       within the viral code: 

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