diff --git a/recon/amass.py b/recon/amass.py
new file mode 100644
index 0000000..38bccae
--- /dev/null
+++ b/recon/amass.py
@@ -0,0 +1,69 @@
+import luigi
+from luigi.util import inherits
+from luigi.contrib.external_program import ExternalProgramTask
+
+from recon.targets import TargetList
+
+
+@inherits(TargetList)
+class AmassScan(ExternalProgramTask):
+    """ Run amass scan to perform subdomain enumeration of given domain(s).
+
+    Expects TARGET_FILE.domains file to be a text file with one top-level domain per line.
+
+    Commands are similar to the following
+
+    amass enum -ip -brute -active -p WEB_PORTS -min-for-recursive 3 -df tesla -json amass.tesla.json
+
+    Args:
+        exempt_list: Path to a file providing blacklisted subdomains, one per line.
+        target_file: specifies the file on disk containing a list of ips or domains *--* Required by upstream Task
+    """
+
+    exempt_list = luigi.Parameter(default="")
+
+    def requires(self):
+        """ AmassScan depends on TargetList to run.
+
+        TargetList expects target_file as a parameter.
+
+        Returns:
+            luigi.ExternalTask - TargetList
+        """
+        return TargetList(self.target_file)
+
+    def output(self):
+        """ Returns the target output for this task.
+
+        Naming convention for the output file is amass.TARGET_FILE.json.
+
+        Returns:
+            luigi.local_target.LocalTarget
+        """
+        return luigi.LocalTarget(f"amass.{self.target_file}.json")
+
+    def program_args(self):
+        """ Defines the options/arguments sent to amass after processing.
+
+        Returns:
+            list: list of options/arguments, beginning with the name of the executable to run
+        """
+        command = [
+            "amass",
+            "enum",
+            "-active",
+            "-ip",
+            "-brute",
+            "-min-for-recursive",
+            "3",
+            "-df",
+            self.input().path,
+            "-json",
+            f"amass.{self.target_file}.json",
+        ]
+
+        if self.exempt_list:
+            command.append("-blf")  # Path to a file providing blacklisted subdomains
+            command.append(self.exempt_list)
+
+        return command
diff --git a/recon/config.py b/recon/config.py
index 9e0558f..7841079 100644
--- a/recon/config.py
+++ b/recon/config.py
@@ -4,4 +4,6 @@ top_udp_ports = [631,161,137,123,138,1434,445,135,67,53,139,500,68,520,1900,4500
 masscan_config = {
     'iface': 'tun0',
     'rate': '1000',
-}
\ No newline at end of file
+}
+
+web_ports = {'80', '443', '8080', '8000', '8443'}