: Before doing anything else, upload the file to VirusTotal . This service will scan the file against over 70 different antivirus engines to see if it contains known threats.
: Opening or extracting the contents of an unknown .rar file can trigger script-based infections. RaKatbj.rar
: While .rar files are common for storage, they are a primary vehicle for delivering malware , ransomware , or Trojans because the compressed contents can sometimes hide from basic "on-arrival" antivirus scans. : Before doing anything else, upload the file to VirusTotal
: If you cannot verify exactly what the file is or why it is on your system, the safest course of action is to delete it immediately and empty your trash. : While
: If you use a tool like 7-Zip to "Open Archive" (without extracting), you can often see the names and sizes of the files inside. If you see .exe , .vbs , .js , or .scr files inside, it is almost certainly malicious.
: If you did not specifically request or download this file from a verified official source (like a known software developer's website), it should be treated as high-risk. 🛡️ Recommended Actions