Late Night Virus

 Virus Name:  Late Night 
 V Status:    New 
 Discovered:  January, 1995 
 Symptoms:    .COM file growth; message displayed 
 Origin:      Unknown 
 Eff Length:  248 Bytes 
 Type Code:   PNCK - Parasitic Non-Resident .COM Infector 
 Detection Method:  F-Prot, AVTK, IBMAV, ViruScan, Sweep, 
                    NAV, NAVDX, VAlert, PCScan, ChAV, 
                    AVTK/N, IBMAV/N, NShld, Sweep/N, NProt, NAV/N, LProt, 
                    Innoc 4.0+ 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Late Night virus was received in January, 1995.  Its origin or 
       point of isolation is unknown.  Late Night is a non-resident, 
       direct action infector of .COM files, including COMMAND.COM. 
       When a program infected with the Late Night virus is executed, this 
       virus will infect all of the .COM files in the current directory. 
       Infected files will have a file length increase of 248 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 not be altered.  The 
       following text strings are visible within the viral code: 
               "Get some sleep, will ya? - Late Night Virus - Jack Damn" 
       The Late Night virus will display a message when an infected 
       program is executed after midnight.  This message is the second 
       text string indicated above. 

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