1804 Virus

 Virus Name:  1804 
 Aliases:     Dashel 
 V Status:    Rare 
 Discovery:   January, 1993 
 Symptoms :   .EXE file growth; file date/time changes 
 Origin:      Germany 
 Eff Length:  1,804 - 1,805 Bytes 
 Type Code:   PNE - Parasitic Non-Resident .EXE Infector 
 Detection Method:  ViruScan, F-Prot, AVTK, Sweep, NAV, IBMAV, 
                    NAVDX, VAlert, PCScan, ChAV, 
                    NShld, Sweep/N, NProt, NAV/N, Innoc, AVTK/N, IBMAV/N 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The 1804 virus was received from Germany in January, 1993.  1804 is 
       a non-resident, direct action infector of .EXE programs. 
       When a program infected with the 1804 virus is executed, the 1804 
       virus will infect one .EXE file located in the current directory. 
       Infected programs will usually have a file length increase of 1,804 
       bytes, though occassionally the file length increase will be 1,805 
       bytes.  The virus will be 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.  No text strings 
       are visible within the viral code. 
       It is unknown what 1804 does besides replicate. 

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