Dec3rd.1333
Description Dec3rd.1333
It's a not dangerous memory resident parasitic encrypted virus. It hooks INT 21h and writes itself to the end of COM- and EXE-files that are executed or opened, or searches for these files and infects them (this virus contains the internal mask strings "*.COM *.EXE"). On running under DOS 6.0 and some other this virus displays: "Dec 3 92 is my 20th birthday (V6)".
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Synergy.288
Description Synergy.288
It is a harmless memory resident parasitic virus. It copies itself into video memory, hooks INT 10h, 21h and writes itself to the end of COM files that are executed. It contains the text string:
SynergY
Syrian Family
Description Syrian Family
These are dangerous memory resident overwriting viruses. They hook INT 21h and overwrite COM and EXE files that are executed or loaded as overlays. They display the message "Bad command or filename" before return to DOS. They contain the text strings:
"Syrian.241": Syrian Brain II
MS-DOS v4.22 Volume label for drive Z is Infected!
"Syrian.412": Syrian Brain II
"Syrian.412" searches and deletes the files
C:SYRIAN??.II?
C:*.BAT
C:*.SYS
C:*.COM
C:*.EXE
C:AUTOEXEC.*
C:CONFIG.*
and then creates the subdirectories:
C:The
C:Syrian
C:Brain
C:II
C:Has
C:Struck
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