Research Centre

Detecting Malware Threats by File Sizes

Malware is typically found within files that are less than one megabyte (MB) in size. According to Fortinet research, 97% of malware discovered since the beginning of 2006 is below one MB in size. The small size of the malware file allows malicious content to be downloaded and executed quickly, creating an unnoticeable infection.


Malware is typically found within files that are less than one megabyte (MB) in size. According to Fortinet research, 97% of malware discovered since the beginning of 2006 is below one MB in size. The small size of the malware file allows malicious content to be downloaded and executed quickly, creating an unnoticeable infection.