Implemented network and service scan checks, merging them with the port scan check into a single alert (Scan Alert) (#9024)

scripts/lua/modules/alert_definitions/host/host_alert_scan.lua

@@ -0,0 +1,89 @@
+--
+-- (C) 2019-24 - ntop.org
+--
+
+-- ##############################################
+
+local host_alert_keys = require "host_alert_keys"
+
+local json = require("dkjson")
+local alert_creators = require "alert_creators"
+local classes = require "classes"
+local alert = require "alert"
+local mitre = require "mitre_utils"
+
+-- ##############################################
+
+local host_alert_scan = classes.class(alert)
+
+-- ##############################################
+
+host_alert_scan.meta = {
+  alert_key = host_alert_keys.host_alert_scan,
+  i18n_title = "alerts_dashboard.scan_title",
+  icon = "fas fa-exclamation-triangle",
+
+   -- Mitre Att&ck Matrix values
+  mitre_values = {},
+  has_attacker = true,
+}
+
+-- ##############################################
+
+-- @brief Prepare an alert table used to generate the alert
+-- @return A table with the alert built
+function host_alert_scan:init(ifid, attacker, victim, num_victims, attack)
+   self.super:init()
+   self.alert_type_params = {
+     ifid = ifid,
+     attacker = attacker,
+     victim = victim,
+     num_victims = num_victims,
+     attack = attack
+   }
+end
+
+-- #######################################################
+
+-- @brief Format an alert into a human-readable string
+-- @param ifid The integer interface id of the generated alert
+-- @param alert The alert description table, including alert data such as the generating entity, timestamp, granularity, type
+-- @param alert_type_params Table `alert_type_params` as built in the `:init` method
+-- @return A human-readable string
+function host_alert_scan.format(ifid, alert, alert_type_params)
+  local alert_consts = require("alert_consts")
+  local attacker = alert_consts.formatHostAlert(ifid, alert_type_params.attacker, alert["vlan_id"])
+  local victim = alert_consts.formatHostAlert(ifid, alert_type_params.victim, alert["vlan_id"])
+  if alert_type_params.attack == "Service" then
+    return i18n("alert_messages.host_alert_scan_service", { 
+      attacker = attacker,
+      victim = victim,
+      num_victims = alert_type_params.num_victims,
+      attack = alert_type_params.attack
+    })
+  elseif alert_type_params.attack == "Network" then
+    return i18n("alert_messages.host_alert_scan_network", { 
+      attacker = attacker,
+      victim = victim,
+      num_victims = alert_type_params.num_victims,
+      attack = alert_type_params.attack
+    })
+  elseif alert.is_attacker == "1" then
+    return i18n("alert_messages.host_alert_scan_port", { 
+      attacker = attacker,
+      victim = victim,
+      num_victims = alert_type_params.num_victims,
+      attack = alert_type_params.attack
+    })
+  else
+    return i18n("alert_messages.host_alert_scan_port_victim", { 
+      victim = victim,
+      attacker = attacker,
+      attack = alert_type_params.attack
+    })
+  end
+end
+
+-- #######################################################
+
+return host_alert_scan