If the connection is successful, the following file name extensions are searched for within removable, fixed, or networked drives: doc, docx, xls, rtf, odt, txt, jpg, pdf, rar, zip, and 7z. Candidate files are queued up for upload. They are also inventoried via a specific MD5 hash value computed based on attributes of the target file and compromised host, such as the volume serial number, file size, and last write timestamp assigned to the file. Computed hashes are logged to an inventory log file that serves as a reference point checked by the malware to avoid duplicate exfiltration