Merge pull request #2 from wmetcalf/master

tries to deal with empty sets of double quotes inside of quoted string which apparently is allowed and abused.

Author: DissectMalware

Diff for: batch_deobfuscator/batch_interpreter.py

@@ -165,7 +165,10 @@ def normalize_command(self, command):
             if state == "init":  # init state
                 if char == '"':  # quote is on
                     state = "str_s"
-                    normalized_com += char
+                    if normalized_com and normalized_com[-1] == '"':
+                        normalized_com = normalized_com[:-1]
+                    else:
+                        normalized_com += char
                 elif char == "," or char == ";" or char == "\t":
                     # commas (",") are replaced by spaces, unless they are part of a string in doublequotes
                     # semicolons (";") are replaced by spaces, unless they are part of a string in doublequotes