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quadratic famil

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Description: Details
Quadratic Family

These are harmless memory resident parasitic virus. They hook INT 21h and write themselves to the end of COM- and EXE-files that are executed. They cure the infected files on file opening. They contain the internal text strings:
SD93
Quadratic Equation

"Quadratic.981,986" hook INT 09h also (keyboard) and sometimes display the message "Quadratic Equation" on DEL key pressing.
"Quadratic.1283" is a polymorphic virus. It contains the internal string "Quadratic Equation II".

Updated: 02/24/2006
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