which language to learn to identify harmful elements?

sadab0

Estimable
Aug 31, 2014
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so take for example i accidentally downloaded something like an application executable or a pdf or anything for that matter that had something malicious in it and my antivirus either didn't pick it up or deleted it as a false positive, in either situation how would i be able to tell if the file was actually infected? which language should i learn for these types of things? i will only be operating on windows platforms.
edit- if i need to know more than a language then kindly state what i would need to learn to actively perform an analysis of any virus to figure out what it is, where it came from, what it stole and what it's after?
 

sadab0

Estimable
Aug 31, 2014
20
0
4,560

well it's just my assumption that you would be able to figure out what files are composed of and thereby identifying if everything is proper with language.