A hacker sent an email to a group of employees at one organization. The email pretends to be from HR with an attachment, asking the employees to open and fill that attachment. One of the employees was not careful and actually opened the attachment, which resulted in his computer being infected with the hacker's malware. The hacker has now access to one machine inside the organization's network. The hacker seeks important data, such as customer data, employees records and patents. The hacker was able to locate the servers at which he can access such data, but the employee account he is using does not have permission to access such servers. What should the hacker do to overcome the permission problem?