: Randomly generated filenames like "Kkfjajza.zip" are often used by malicious sites to distribute adware, malware, or ransomware . If you found this link on an untrusted pop-up or a shady forum, do not download it.
Could you tell me or what kind of file it is supposed to be?
: If you already have the file, do not open it. Upload it to a service like VirusTotal to check it against multiple antivirus engines before interacting with the .zip contents.
If you are looking for a file with this specific name, here is what you should consider: