Run a full system scan using reputable, updated antivirus software (e.g., Windows Defender, Malwarebytes).
Because this filename is not associated with legitimate software, any file with this name should be treated with extreme caution. Files ending in .exe (executable files) from unknown sources are common vectors for malware, spyware, or ransomware. 🛡️ Safety Checklist for Unknown .exe Files If you have encountered this file, Do not open or run mateuszmapeusz2.exe . mateuszmapeusz2.exe
Upload the file to VirusTotal to check if it is recognized as malicious by multiple security vendors. Run a full system scan using reputable, updated
Look at where the file is stored. If it is in Temp folders, Downloads , or AppData , it is more likely to be suspicious. updated antivirus software (e.g.