An infected computer has one or more of the following symptom:
1. Operating System run much slower than usual.
2. Avaible memory is less than expected.
3. File become corrupted.
4. Screen display unsual message or image.
5. Music or unusual sound play randomly
6. Existing program and file disappear.
7. Program or file do not work properly.
8. Unknown program or files mysteriously appear
.
9. System property change.
10. Operating System does not start up.
11. Operating System shut down unexpectedly.
