Several dangerous extended stored procedures under SQL Server _mssql

These stored procedures are as follows:
Sp_makewebtask
xp_cmdshell
Xp_dirtree
Xp_fileexist
Xp_terminate_process
sp_OAMethod
sp_OACreate
Xp_regaddmultistring
Xp_regdeletekey
Xp_regdeletevalue
Xp_regenumkeys
Xp_regenumvalues
Sp_add_job
Sp_addtask
Xp_regread
Xp_regwrite
Xp_readwebtask
Xp_makewebtask
Xp_regremovemultistring

Response: Delete The above stored procedure or executable file or modify the stored procedure corresponding user group executable permissions, delete the above stored procedure corresponding script is:
Drop PROCEDURE sp_makewebtask
EXEC master.. Sp_dropextendedproc xp_cmdshell
EXEC master.. Sp_dropextendedproc Xp_dirtree
EXEC master.. Sp_dropextendedproc xp_fileexist
EXEC master.. Sp_dropextendedproc xp_terminate_process
EXEC master.. Sp_dropextendedproc sp_OAMethod
EXEC master.. Sp_dropextendedproc sp_OACreate
EXEC master.. Sp_dropextendedproc xp_regaddmultistring
EXEC master.. Sp_dropextendedproc Xp_regdeletekey
EXEC master.. Sp_dropextendedproc Xp_regdeletevalue
EXEC master.. Sp_dropextendedproc Xp_regenumkeys
EXEC master.. Sp_dropextendedproc xp_regenumvalues
EXEC master.. Sp_dropextendedproc Sp_add_job
EXEC master.. Sp_dropextendedproc sp_addtask
EXEC master.. Sp_dropextendedproc Xp_regread
EXEC master.. Sp_dropextendedproc xp_regwrite
EXEC master.. Sp_dropextendedproc Xp_readwebtask
EXEC master.. Sp_dropextendedproc Xp_makewebtask
EXEC master.. Sp_dropextendedproc xp_regremovemultistring



Example:

exec xp_dirtree ' C: ' 1,1