Detection of malware is typically done using virus definitions or signatures in a database. Security products, such as antiviruses, will scan files using a virus database to detect if the files are good or bad. They detect files as good if they don’t match an entry in the database and consider files bad if they do match an entry. It works almost like an advanced blacklist.
Malware authors understand how security products work and build malware that these products cannot detect. In the undergr
