Qtiny Virus

 Virus Name:  Qtiny 
 Aliases:     Qtiny.162 
 V Status:    New 
 Discovery:   July, 1996 
 Symptoms:    .COM file growth; file date/time changes 
 Origin:      Unknown 
 Eff Length:  162 Bytes 
 Type Code:   PRaCK - Parasitic Resident .COM Infector 
 Detection Method:  ChAV, ViruScan, NAV, NAVDX, AVTK 7.68+, 
                    Innoc, NShld, NAV/N, AVTK/N 7.68+ 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Qtiny virus was received in July, 1996.  Its origin or point 
       of isolation is unknown.  Qtiny is a memory resident infector of 
       .COM files, including COMMAND.COM. 
       When a program infected with the Qtiny virus is executed, this 
       virus will install itself memory resident in allocated system 
       memory at 0060.  Interrupt 21 will be hooked by the virus in 
       Once the Qtiny virus is memory resident, it will infect .COM files, 
       including COMMAND.COM, when they are executed.  Infected files 
       will have a file length increase of 162 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.  No text 
       strings are visible within the viral code. 

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