14 DAY TRIAL // Microsoft’s Advanced Systems Format (ASF) – files with .asf, .wma and .wmv extensions – is often abused by cybercriminals to lure unsuspecting Internet users to malicious websites or get them to download malware.
That’s why VirusTotal has implemented a new feature that allows security researchers to analyze maliciously crafted ASF files.
“We believe displaying these new file details will further help malware researchers in their fight against the bad guys. Additionally, this attack trend leaves room for new interesting features to be implemented in VirusTotal with regards to the relationships between files,” VirusTotal representatives wrote in a blog post.
“Was this file downloaded from a given site? And if so, was this site used in a media content DRM social engineering attack? Which video file was the initial trigger for the whole infection process? Interesting questions that we will soon be addressing,” they explained.
Here is an example of an ASF file scan. Click on the “File detail” tab to see detailed information for ASF files.