Metall.557
Description Metall.557
It is a very dangerous nonmemory resident parasitic virus. It searches for .COM files except COMMAND.COM, then writes itself to the end of the file. The virus infects correctly only COM files that begin with JMP/CALL near instruction, other files stays corrupted after infection.
Depending on the system time the virus mixes letters on the screen, it also contains the text string:
METALLI
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June8.1919
Description June8.1919
It is a very dangerous memory resident encrypted parasitic virus. It hooks INT 9, 1Ch, 21h and writes itself to the end of COM and EXE files that are opened or renamed. Under debugger, or on June 8th it erases disk sectors. When Alt-Ctrl-Del keys are pressed at the same time and depending on its counters the virus plays a (Chinese?) tune. The virus contains the text string:
EXECOM
Junior.224
Description Junior.224
It is a harmless memory resident parasitic virus. Being executed it copies itself into Interrupt Vectors Table, hooks INT AEh and inserts instruction CD AE (call to INT AEh) into resident portion of COMMAND.COM instead of original INT 21h call. As a result, the virus receives the control when any program is executed. Then the virus writes itself to the end of COM files. The virus contains the text string:
Junior
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