Are you trying to it, or simply trying to install an update ?
Archive files are a very common delivery method for malware, trojans, and info-stealers. [NeRa] Pluu UPDATE.rar
Calculate the file's hash (MD5, SHA-1, or SHA-256) and search for it on VirusTotal to see if it has already been flagged as malicious by security vendors. Are you trying to it, or simply trying to install an update
If you need to investigate the contents of this file safely, consider the following actions: Are you trying to it
