diff --git a/monkey/common/__init__.py b/monkey/common/__init__.py
index ff871b4c4..4898b2df8 100644
--- a/monkey/common/__init__.py
+++ b/monkey/common/__init__.py
@@ -6,4 +6,4 @@ from .di_container import DIContainer, UnresolvableDependencyError
 from .operating_system import OperatingSystem
 from . import types
 from . import base_models
-from .agent_registration_message import AgentRegistrationMessage
+from .agent_registration_data import AgentRegistrationData
diff --git a/monkey/common/agent_registration_data.py b/monkey/common/agent_registration_data.py
new file mode 100644
index 000000000..6d45df89f
--- /dev/null
+++ b/monkey/common/agent_registration_data.py
@@ -0,0 +1,23 @@
+from datetime import datetime
+from ipaddress import IPv4Interface
+from typing import Optional, Sequence
+from uuid import UUID
+
+from pydantic import validator
+
+from .base_models import InfectionMonkeyBaseModel
+from .transforms import make_immutable_sequence
+from .types import HardwareID
+
+
+class AgentRegistrationData(InfectionMonkeyBaseModel):
+    id: UUID
+    machine_hardware_id: HardwareID
+    start_time: datetime
+    parent_id: Optional[UUID]
+    cc_server: str
+    network_interfaces: Sequence[IPv4Interface]
+
+    _make_immutable_sequence = validator("network_interfaces", pre=True, allow_reuse=True)(
+        make_immutable_sequence
+    )
diff --git a/monkey/tests/unit_tests/monkey_island/cc/models/test_agent_registration_message.py b/monkey/tests/unit_tests/monkey_island/cc/models/test_agent_registration_message.py
new file mode 100644
index 000000000..2b755038c
--- /dev/null
+++ b/monkey/tests/unit_tests/monkey_island/cc/models/test_agent_registration_message.py
@@ -0,0 +1,103 @@
+from datetime import datetime, timezone
+from ipaddress import IPv4Interface
+from typing import MutableSequence, Sequence
+from uuid import UUID
+
+import pytest
+
+from common import AgentRegistrationData
+
+AGENT_ID = UUID("012e7238-7b81-4108-8c7f-0787bc3f3c10")
+PARENT_ID = UUID("0fc9afcb-1902-436b-bd5c-1ad194252484")
+
+AGENT_REGISTRATION_MESSAGE_OBJECT_DICT = {
+    "id": AGENT_ID,
+    "machine_hardware_id": 2,
+    "start_time": datetime.fromtimestamp(1660848408, tz=timezone.utc),
+    "parent_id": PARENT_ID,
+    "cc_server": "192.168.1.1:5000",
+    "network_interfaces": [IPv4Interface("10.0.0.1/24"), IPv4Interface("192.168.5.32/16")],
+}
+
+AGENT_REGISTRATION_MESSAGE_SIMPLE_DICT = {
+    "id": str(AGENT_ID),
+    "machine_hardware_id": 2,
+    "start_time": "2022-08-18T18:46:48+00:00",
+    "parent_id": str(PARENT_ID),
+    "cc_server": "192.168.1.1:5000",
+    "network_interfaces": ["10.0.0.1/24", "192.168.5.32/16"],
+}
+
+
+def test_to_dict():
+    a = AgentRegistrationData(**AGENT_REGISTRATION_MESSAGE_OBJECT_DICT)
+    simple_dict = AGENT_REGISTRATION_MESSAGE_SIMPLE_DICT.copy()
+
+    assert a.dict(simplify=True) == simple_dict
+
+
+def test_from_serialized():
+    from_serialized = AgentRegistrationData(**AGENT_REGISTRATION_MESSAGE_SIMPLE_DICT)
+    from_objects = AgentRegistrationData(**AGENT_REGISTRATION_MESSAGE_OBJECT_DICT)
+
+    assert from_serialized == from_objects
+
+
+@pytest.mark.parametrize(
+    "key, value",
+    [
+        ("id", 1),
+        ("machine_hardware_id", "not-an-int"),
+        ("start_time", None),
+        ("parent_id", 2.1),
+        ("cc_server", []),
+        ("network_interfaces", "not-a-list"),
+    ],
+)
+def test_construct_invalid_field__type_error(key, value):
+    invalid_type_dict = AGENT_REGISTRATION_MESSAGE_SIMPLE_DICT.copy()
+    invalid_type_dict[key] = value
+
+    with pytest.raises(TypeError):
+        AgentRegistrationData(**invalid_type_dict)
+
+
+@pytest.mark.parametrize(
+    "key, value",
+    [
+        ("machine_hardware_id", -1),
+        ("start_time", "not-a-date-time"),
+        ("network_interfaces", [1, "stuff", 3]),
+    ],
+)
+def test_construct_invalid_field__value_error(key, value):
+    invalid_value_dict = AGENT_REGISTRATION_MESSAGE_SIMPLE_DICT.copy()
+    invalid_value_dict[key] = value
+
+    with pytest.raises(ValueError):
+        AgentRegistrationData(**invalid_value_dict)
+
+
+@pytest.mark.parametrize(
+    "key, value",
+    [
+        ("id", PARENT_ID),
+        ("machine_hardware_id", 99),
+        ("start_time", 0),
+        ("parent_id", AGENT_ID),
+        ("cc_server", "10.0.0.1:4999"),
+        ("network_interfaces", ["10.0.0.1/24"]),
+    ],
+)
+def test_fields_immutable(key, value):
+    a = AgentRegistrationData(**AGENT_REGISTRATION_MESSAGE_OBJECT_DICT)
+
+    with pytest.raises(TypeError):
+        setattr(a, key, value)
+
+
+def test_network_interfaces_sequence_immutable():
+    a = AgentRegistrationData(**AGENT_REGISTRATION_MESSAGE_OBJECT_DICT)
+
+    assert isinstance(a.network_interfaces, Sequence)
+    assert not isinstance(a.network_interfaces, MutableSequence)