Ahasverus is a dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of .EXE-files that are executed or opened. It deletes files and CHKLIST.MS CHKLIST.CPS. On April 6, it erases CMOS.
This virus contains text strings:
EXEchklist.ms chklist.cps KRNLAhasverus 1.04 (C) by Windo Earle ROMANIA