When the virus is run, it infects the first uninfected DOS executable by writing itself to the end of the file.
Files infected by the virus may fail to run and cause a system hang.
When an infected program is run in September, the virus manifests itself in the form of sound and video effects, and it displays the message at the top of the screen:
My name is APEX v1.0_ Congratulations! PS:I wouldn't hurt your data.Be relax!.Ha
Obviously, the virus would hang the system after activation.
The message to be displayed would become garbage characters on some infected programs.
In the month of activation the virus does not infect any file.
The virus contains the encrypted internal text strings:
*.COM ????????COM .COM DSME v1.0