Acad lsp is a Lisp script file of AutoCAD software. When opening AutoCAD dwg file, the script file named acad lsp in the same folder will be automatically run, which makes acad lsp file a way for computer viruses to spread between computers with AutoCAD software.

However, because acad lsp is also an automatic loading method of cad toolbox, many toolbox authors use this simple loading method.

Extended data:

Symptoms of lsp virus poisoning:

After the machine is poisoned, when running CAD, every time a dwg file is opened, an acaddoc.lsp file will be generated in the directory where the dwg file is located.

Because every time the drawing is opened, the virus program carries out a process of spreading and copying the virus, so the speed of CAD drawing is slow. Use Notepad to check any *. The lsp file is in the support directory under the CAD installation path. If the end of the file contains the same code as the attachment 1, it can be judged as poisoning.

Baidu encyclopedia -acad.lsp