Update yara_analyzer.py - Fixes

analyzers/Yara/yara_analyzer.py

@@ -149,12 +149,15 @@ def download_rules_from_github_url(self, url, token):
     def __init__(self):
         Analyzer.__init__(self)
 
-        self.rulepaths = self.get_param('config.rules', None, 'No paths for rules provided.')
+        self.rulepaths = self.get_param('config.rules', [], 'No paths for rules provided.')
         if not self.rulepaths:
             self.rulepaths = []  # Ensure it's a list even if nothing was provided
         elif isinstance(self.rulepaths, str):
             self.rulepaths = [self.rulepaths]
 
+        # Filter out any None values from the list
+        self.rulepaths = [rp for rp in self.rulepaths if rp is not None and rp != '']
+
         self.github_urls = self.get_param('config.github_urls', None, 'No GitHub URLs provided.')
         self.github_token = self.get_param('config.github_token', None, 'No GitHub PAT provided.')
 
@@ -238,7 +241,7 @@ def check(self, file_path):
                     decoded_strings = []
                     for s in match.strings:
                         try:
-                            matched_text = s[2].decode(errors='ignore')
+                            matched_text = s.data.decode(errors='ignore')
                         except Exception as e:
                             matched_text = f"<decoding error: {str(e)}>"
 
@@ -324,4 +327,4 @@ def run(self):
 
 
 if __name__ == '__main__':
-    YaraAnalyzer().run()
+    YaraAnalyzer().run()