This is a Generic
Detection that identifies a multitude of files that have been packed in a certain way. This detection is displayed using the name 'Gen:Heur.Krypt.10'.
For more information, please see Encyclopedia:Packed
About Generic Detections
Unlike more traditional detections (also known as signatures or single-file detections) a Generic Detection does not identify a unique or individual malicious program. Instead, a Generic Detection looks for broadly applicable code or behavior characteristics that indicate a file as potentially malicious, so that a single Generic Detection can efficiently identify dozens, or even hundreds of malware.