anti-virus-file-scanner

Anti-virus file scanner

You are working for NoVirus Security Solutions and they ask you to make a scanner that scans a file inputted by the user with the function scanFile(File,VirusDB) that takes a File and a VirusDB object and return whether a file is safe or not. Remember: the searches need to be non-Case-Sensitive

Your class also has the function setScanIntensity(int) which changes the scan intensity. This will only receive values 0, 1, 2 or 3. This has been done for you.

The scan intensity determines the arrays from the database that will be used. i.e.:

• scanIntensity 0 means off(every file is considered safe)
• scanIntensity 1 means that only the array intensity1Signatures will be used
• scanIntensity 2 means that the arrays intensity1Signatures and intensity2Signatures will be used
• scanIntensity 3 means that all 3 arrays will be used

Outputs

The outputs should be: "Filename is safe" or "Filename is not safe" (Filename is the name of the file that you can get with file.getName() )

Examples

      String[] intensity1signatures = new String[]{
        "malware",
        "virus",
        "infect"
      };
      
      String[] intensity2signatures = new String[]{
        "ransomware",
        "trojan",
        "trojanHorse",
        "worm",
        "spyware",
        "keystrokelogger",
        "adware",
        "botnet",
        "rootkit",
      };
      
      String[] intensity3signatures = new String[]{
        "DeleteSys32",
        "OverideMBR",
        "EncryptAll",
        "openrandomwebsite",
        "openrandwebsite",
        "sendalldata",
        "recordKeyboard",
        "recordmouse",
        "destroy",
        "overheat",
        "getfullcontrol",
        "uploadharddrive",
        "uploadharddisk",
        "overload",
        "changeOS",
        "encrypt",
        "changeDesktop",
        "ddos",
        "dos",
        "hide",
        "inject",
        "ransom",
        "getcreditcardinfo",
        "getpasswords",
        "getpass",
      };

file name	file data	scan intensity	result	comments
file0	dsadxzdcVirusdsadfads	0	"file0 is safe"	scanIntensity 0 means off
file1	dsadxzdcViRUsdsadfads	1	"file1 is not safe"	make sure that the scan is not case sensitive
Virus	dsadxz2346dsadfads	3	"Virus is safe"	Name doesn't matter
file4	gasfdsfwormhmilasd	1	"file4 is safe"	worm is in array 2 while the intensity was 1, so 2 shall not be searched
file5	ascgEtCReditcaRdiNFolds	3	"file5 is not safe"	getcreditcardinfo is int array 3