chg: [MISP import-export] pgp and cryptocurrency with relationships

bin/Decoder.py

@@ -20,6 +20,8 @@ from Helper import Process
 from packages import Paste
 from packages import Item
 
+from lib import Decoded
+
 import re
 import signal
 
@@ -124,8 +126,7 @@ def save_hash(decoder_name, message, date, decoded):
     # Domain Object
     if Item.is_crawled(message):
         domain = Item.get_item_domain(message)
-        serv_metadata.sadd('hash_domain:{}'.format(domain), hash) # domain - hash map
+        Decoded.save_domain_decoded(domain, hash)
-        serv_metadata.sadd('domain_hash:{}'.format(hash), domain) # hash - domain map
 
 
 def save_hash_on_disk(decode, type, hash, json_data):

bin/export/MispExport.py

@@ -321,6 +321,7 @@ if __name__ == '__main__':
                 {'id': 'bfd5f1d89e55b10a8b122a9d7ce31667ec1d086a', 'type': 'decoded', 'lvl': 2},
                 #{'id': 'a92d459f70c4dea8a14688f585a5e2364be8b91fbf924290ead361d9b909dcf1', 'type': 'image', 'lvl': 3},
                 {'id': 'archive/pastebin.com_pro/2020/01/27/iHjcWhkD.gz', 'type': 'item', 'lvl': 1},
+                {'id': '0xA4BB02A75E6AF448', 'type': 'pgp', 'subtype': 'key', 'lvl': 1},
                 {'id': '15efuhpw5V9B1opHAgNXKPBPqdYALXP4hc', 'type': 'cryptocurrency', 'subtype': 'bitcoin', 'lvl': 1}
             ]
     create_list_of_objs_to_export(l_obj, mode='union')

bin/export/MispImport.py

@@ -8,11 +8,11 @@ import redis
 
 sys.path.append(os.path.join(os.environ['AIL_BIN'], 'lib'))
 sys.path.append(os.path.join(os.environ['AIL_BIN'], 'packages'))
+import Item
 import Cryptocurrency
 import Pgp
 import Decoded
 import Domain
-import Item
 import Screenshot
 import Correlate_object
 
@@ -31,8 +31,18 @@ def get_global_id(obj_type, obj_id, obj_subtype=None):
 # sub type
 # obj type
 # obj value
-def get_global_id_from_misp_obj(misp_obj):
+def get_global_id_from_id(global_id):
-    pass
+    obj_meta = {}
+    global_id = global_id.split(':', 3)
+    if len(global_id) > 2:
+        obj_meta['type'] = global_id[0]
+        obj_meta['subtype'] = global_id[1]
+        obj_meta['id'] = global_id[2]
+    else:
+        obj_meta['type'] = global_id[0]
+        obj_meta['subtype'] = None
+        obj_meta['id'] = global_id[1]
+    return obj_meta
 
 def get_misp_obj_tag(misp_obj):
     if misp_obj.attributes:
@@ -49,7 +59,7 @@ def get_object_metadata(misp_obj):
     if 'first_seen' in misp_obj.keys():
         obj_meta['first_seen'] = misp_obj.first_seen
     if 'last_seen' in misp_obj.keys():
-        obj_meta['last_seen'] = misp_obj.first_seen
+        obj_meta['last_seen'] = misp_obj.last_seen
     obj_meta['tags'] = get_misp_obj_tag(misp_obj)
     return obj_meta
 
@@ -65,7 +75,7 @@ def unpack_item_obj(map_uuid_global_id, misp_obj):
 
     if obj_id and io_content:
         res = Item.create_item(obj_id, obj_meta, io_content)
-        print(res)
+        #print(res)
 
         map_uuid_global_id[misp_obj.uuid] = get_global_id('item', obj_id)
 
@@ -85,12 +95,12 @@ def unpack_obj_pgp(map_uuid_global_id, misp_obj):
 
     if obj_id and obj_subtype:
         obj_meta = get_object_metadata(misp_obj)
+        print(obj_id)
+        print(obj_meta)
         res = Pgp.pgp.create_correlation(obj_subtype, obj_id, obj_meta)
-        print(res)
 
         map_uuid_global_id[misp_obj.uuid] = get_global_id('pgp', obj_id, obj_subtype=obj_subtype)
 
-        #get_obj_relationship(misp_obj)
 
 def unpack_obj_cryptocurrency(map_uuid_global_id, misp_obj):
     obj_id = None
@@ -103,19 +113,11 @@ def unpack_obj_cryptocurrency(map_uuid_global_id, misp_obj):
 
     # valid cryptocurrency type
     if obj_subtype and obj_id:
-        print('crypto')
-        print(obj_id)
-        print(obj_subtype)
-
         obj_meta = get_object_metadata(misp_obj)
-        print(obj_meta)
         res = Cryptocurrency.cryptocurrency.create_correlation(obj_subtype, obj_id, obj_meta)
-        print(res)
 
         map_uuid_global_id[misp_obj.uuid] = get_global_id('pgp', obj_id, obj_subtype=obj_subtype)
 
-    #get_obj_relationship(misp_obj)
-
 def get_obj_type_from_relationship(misp_obj):
     obj_uuid = misp_obj.uuid
     obj_type = None
@@ -128,10 +130,6 @@ def get_obj_type_from_relationship(misp_obj):
                 obj_type = 'decoded'
     return obj_type
 
-def get_obj_relationship(misp_obj):
-    for item in misp_obj.ObjectReference:
-        print(item.to_json())
-
 
 # # TODO: covert md5 and sha1 to expected
 def unpack_file(map_uuid_global_id, misp_obj):
@@ -149,7 +147,8 @@ def unpack_file(map_uuid_global_id, misp_obj):
 
             # # TODO: use/verify specified mimetype
             elif attribute.object_relation == 'mimetype':
-                print(attribute.value)
+                #print(attribute.value)
+                pass
 
             # # TODO: support more
             elif attribute.object_relation == 'sha1' and obj_type == 'decoded':
@@ -158,7 +157,6 @@ def unpack_file(map_uuid_global_id, misp_obj):
                 obj_id = attribute.value
 
         if obj_id and io_content:
-            print(obj_type)
             obj_meta = get_object_metadata(misp_obj)
             if obj_type == 'screenshot':
                 #Screenshot.create_screenshot(obj_id, obj_meta, io_content)
@@ -166,34 +164,35 @@ def unpack_file(map_uuid_global_id, misp_obj):
             else: #decoded
                 Decoded.create_decoded(obj_id, obj_meta, io_content)
 
+            map_uuid_global_id[misp_obj.uuid] = get_global_id('item', obj_id)
+
 def get_misp_import_fct(map_uuid_global_id, misp_obj):
-    #print(misp_obj.ObjectReference)
-    #for item in misp_obj.ObjectReference:
-    #    print(item.to_json())
-    #obj_meta = get_object_metadata(misp_obj)
-
-    #print(misp_obj.name)
-
     if misp_obj.name == 'ail-leak':
-        #unpack_item_obj(map_uuid_global_id, misp_obj)
+        unpack_item_obj(map_uuid_global_id, misp_obj)
-        #print(misp_obj.to_json())
         pass
     elif misp_obj.name == 'domain-ip':
         pass
     elif misp_obj.name == 'pgp-meta':
-        #unpack_obj_pgp(map_uuid_global_id, misp_obj)
+        unpack_obj_pgp(map_uuid_global_id, misp_obj)
         pass
     elif misp_obj.name == 'coin-address':
-        #unpack_obj_cryptocurrency(map_uuid_global_id, misp_obj)
+        unpack_obj_cryptocurrency(map_uuid_global_id, misp_obj)
         pass
     elif misp_obj.name == 'file':
         unpack_file(map_uuid_global_id, misp_obj)
-        print()
-        print('---')
-        print()
-        #unpack_item_obj(map_uuid_global_id, misp_obj)
         pass
 
+# import relationship between objects
+def create_obj_relationships(map_uuid_global_id, misp_obj):
+    if misp_obj.uuid in map_uuid_global_id:
+        for relationship in misp_obj.ObjectReference:
+            if relationship.referenced_uuid in map_uuid_global_id:
+                obj_meta_src = get_global_id_from_id(map_uuid_global_id[relationship.object_uuid])
+                obj_meta_target = get_global_id_from_id(map_uuid_global_id[relationship.referenced_uuid])
+                Correlate_object.create_obj_relationship(obj_meta_src['type'], obj_meta_src['id'], obj_meta_target['type'], obj_meta_target['id'],
+                                                            obj1_subtype=obj_meta_src['subtype'], obj2_subtype=obj_meta_target['subtype'])
+
+
 def import_objs_from_file(filepath):
     event_to_import = MISPEvent()
     event_to_import.load_file(filepath)
@@ -203,12 +202,17 @@ def import_objs_from_file(filepath):
     for misp_obj in event_to_import.objects:
         get_misp_import_fct(map_uuid_global_id, misp_obj)
 
-    print(map_uuid_global_id)
+    for misp_obj in event_to_import.objects:
+        create_obj_relationships(map_uuid_global_id, misp_obj)
+
+    #print(map_uuid_global_id)
 
 
 if __name__ == '__main__':
 
     # misp = PyMISP('https://127.0.0.1:8443/', 'uXgcN42b7xuL88XqK5hubwD8Q8596VrrBvkHQzB0', False)
 
-    #import_objs_from_file('test_import_item.json')
     import_objs_from_file('test_import_item.json')
+
+    #Decoded.delete_correlation('23a44cc266880d26386a0a77318afbe09696f935')
+    #Pgp.pgp.delete_correlation('key', '0xA4BB02A75E6AF448')

bin/lib/Correlate_object.py

@@ -52,9 +52,9 @@ def exist_object(object_type, correlation_id, type_id=None): # => work on object
     elif object_type == 'decoded':
         return Decoded.exist_decoded(correlation_id)
     elif object_type == 'pgp':
-        return Pgp.pgp._exist_corelation_field(type_id, correlation_id)
+        return Pgp.pgp.exist_correlation(type_id, correlation_id)
     elif object_type == 'cryptocurrency':
-        return Cryptocurrency.cryptocurrency._exist_corelation_field(type_id, correlation_id)
+        return Cryptocurrency.cryptocurrency.exist_correlation(type_id, correlation_id)
     elif object_type == 'screenshot' or object_type == 'image':
         return Screenshot.exist_screenshot(correlation_id)
     else:
@@ -203,6 +203,20 @@ def get_obj_tag_table_keys(object_type):
     if object_type=="domain":
         return ['id', 'first_seen', 'last_check', 'status'] # # TODO: add root screenshot
 
+def create_obj_relationship(obj1_type, obj1_id, obj2_type, obj2_id, obj1_subtype=None, obj2_subtype=None):
+    if obj1_type == 'domain':
+        pass
+    elif obj1_type == 'item':
+        pass
+    elif obj1_type == 'pgp':
+        Pgp.pgp.save_obj_relationship(obj1_subtype, obj1_id, obj2_type, obj2_id)
+    elif obj1_type == 'cryptocurrency':
+        Cryptocurrency.cryptocurrency.save_obj_relationship(obj1_subtype, obj1_type, obj2_type, obj2_id)
+    elif obj1_type == 'decoded':
+        pass
+    elif obj1_type == 'image':
+        pass
+
 
 def create_graph_links(links_set):
     graph_links_list = []

bin/lib/Decoded.py

@@ -170,10 +170,26 @@ def get_decoded_correlated_object(sha1_string, correlation_objects=[]):
             decoded_correlation[correlation_object] = res
     return decoded_correlation
 
+# # # TODO: check if item and decoded exist
+def save_decoded_item_correlation(sha1_string, item_id, decoder_type):
+    item_date = Item.get_item_date(item_id)
+
+
+    # domain
+    if Item.is_crawled(item_id):
+        domain = Item.get_item_domain(item_id)
+        save_domain_decoded(domain, sha1_string)
+    pass
+
 def save_domain_decoded(domain, sha1_string):
     r_serv_metadata.sadd('hash_domain:{}'.format(domain), sha1_string) # domain - hash map
     r_serv_metadata.sadd('domain_hash:{}'.format(sha1_string), domain) # hash - domain ma
 
+def save_decoded_correlation(sha1_string, referenced_obj_type, referenced_obj_id):
+    if referenced_obj_type=='domain':
+        save_domain_decoded(referenced_obj_type, sha1_string)
+    elif referenced_obj_type=='item':
+        pass
 
 def get_decoded_file_content(sha1_string, mimetype=None):
     filepath = get_decoded_filepath(sha1_string, mimetype=mimetype)
@@ -205,6 +221,7 @@ def save_decoded_file_content(sha1_string, io_content, date_range, mimetype=None
         f.write(io_content.getvalue())
 
     # create hash metadata
+    # # TODO: save estimated type
     r_serv_metadata.hset('metadata_hash:{}'.format(sha1_string), 'size', os.path.getsize(filepath))
 
     r_serv_metadata.hset('metadata_hash:{}'.format(sha1_string), 'first_seen', date_range['date_from'])

bin/packages/Correlation.py

@@ -10,6 +10,7 @@ import ConfigLoader
 
 sys.path.append(os.path.join(os.environ['AIL_BIN'], 'packages/'))
 import Date
+import Item
 #import Tag
 
 config_loader = ConfigLoader.ConfigLoader()
@@ -36,7 +37,7 @@ class Correlation(object):
 
     def exist_correlation(self, subtype, obj_id):
         res = r_serv_metadata.zscore('{}_all:{}'.format(self.correlation_name, subtype), obj_id)
-        if res:
+        if res is not None:
             return True
         else:
             return False
@@ -283,7 +284,7 @@ class Correlation(object):
 
 
     def get_correlation_all_object(self, correlation_type, correlation_value, correlation_objects=[]):
-        if correlation_objects is None:
+        if not correlation_objects:
             correlation_objects = get_all_correlation_objects()
         correlation_obj = {}
         for correlation_object in correlation_objects:
@@ -311,8 +312,8 @@ class Correlation(object):
             if date > last_seen:
                 r_serv_metadata.hset('{}_metadata_{}:{}'.format(self.correlation_name, subtype, obj_id), 'last_seen', date)
 
-    def save_item_correlation(self, subtype, date, obj_id, item_id, item_date):
+    def save_item_correlation(self, subtype, obj_id, item_id, item_date):
-        update_correlation_daterange(subtype, obj_id, item_date)
+        self.update_correlation_daterange(subtype, obj_id, item_date)
 
         # global set
         r_serv_metadata.sadd('set_{}_{}:{}'.format(self.correlation_name, subtype, obj_id), item_id)
@@ -344,6 +345,12 @@ class Correlation(object):
             self.update_correlation_daterange(subtype, obj_id, date_range['date_to'])
         return True
 
+    def save_obj_relationship(self, subtype, obj_id, obj2_type, obj2_id):
+        if obj2_type == 'domain':
+            self.save_domain_correlation(obj2_id, subtype, obj_id)
+        elif obj2_type == 'item':
+            self.save_item_correlation(subtype, obj_id, obj2_id, Item.get_item_date(obj2_id))
+
     def create_correlation(self, subtype, obj_id, obj_meta):
         res = self.sanythise_correlation_types([subtype], r_boolean=True)
         if not res:
@@ -359,8 +366,40 @@ class Correlation(object):
             #Tag.api_add_obj_tags(tags=obj_meta['tags'], object_id=obj_id, object_type=self.get_correlation_obj_type())
         return True
 
+    # # TODO: handle tags
     def delete_correlation(self, subtype, obj_id):
-        pass
+        res = self.sanythise_correlation_types([subtype], r_boolean=True)
+        if not res:
+            print('invalid subtype')
+            return False
+        if not self.exist_correlation(subtype, obj_id):
+            return False
+
+        obj_correlations = self.get_correlation_all_object(subtype, obj_id)
+        if 'domain' in obj_correlations:
+            for domain in obj_correlations['domain']:
+                r_serv_metadata.srem('domain_{}_{}:{}'.format(self.correlation_name, subtype, domain), obj_id)
+            r_serv_metadata.delete('set_domain_{}_{}:{}'.format(self.correlation_name, subtype, obj_id))
+
+
+        if 'paste' in obj_correlations: # TODO: handle item
+            for item_id in obj_correlations['paste']:
+
+                r_serv_metadata.srem('item_{}_{}:{}'.format(self.correlation_name, subtype, item_id), obj_id)
+            r_serv_metadata.delete('set_{}_{}:{}'.format(self.correlation_name, subtype, obj_id))
+
+            # delete daily correlation
+            first_seen = self.get_correlation_first_seen(subtype, obj_id)
+            last_seen = self.get_correlation_last_seen(subtype, obj_id)
+            meta_date = Date.sanitise_date_range(first_seen, last_seen)
+            date_range = Date.substract_date(meta_date['date_from'], meta_date['date_to'])
+            for date_day in date_range:
+                r_serv_metadata.hdel('{}:{}:{}'.format(self.correlation_name, subtype, date_day), obj_id)
+
+        r_serv_metadata.delete('{}_metadata_{}:{}'.format(self.correlation_name, subtype, obj_id))
+        r_serv_metadata.zrem('{}_all:{}'.format(self.correlation_name, subtype), obj_id)
+
+        return True
 
 ######## API EXPOSED ########