ntopng/scripts/lua/modules/alert_definitions/alert_lateral_movement.lua
2020-10-12 09:22:08 +02:00

65 lines
2.1 KiB
Lua

--
-- (C) 2019-20 - ntop.org
--
local alert_keys = require "alert_keys"
local format_utils = require "format_utils"
local json = require("dkjson")
-- #######################################################
-- @brief Prepare an alert table used to generate the alert
-- @param alert_severity A severity as defined in `alert_consts.alert_severities`
-- @param alert_granularity A granularity as defined in `alert_consts.alerts_granularities`
-- @param last_error A string with the lastest influxdb error
-- @return A table with the alert built
local function createLateralMovementError(alert_severity, alert_granularity, last_error)
local threshold_type = {
alert_severity = alert_severity,
alert_subtype = alert_subtype,
alert_granularity = alert_granularity,
alert_type_params = {
error_msg = last_error
},
}
return threshold_type
end
-- #######################################################
local function formatLateralMovementErrorMessage(ifid, alert, status)
local msg = json.decode(status.error_msg)
local vlan_id = alert.vlan_id or 0
local client = ip2label(msg.shost, vlan_id)
local server = ip2label(msg.dhost, vlan_id)
local rsp = format_utils.formatEpoch(msg.timestamp)..": " ..
"<A HREF=\""..hostinfo2detailsurl(client) .."\">".. msg.shost .."</A>"..
" <i class=\"fas fa-exchange-alt fa-lg\" aria-hidden=\"true\" data-original-title=\"\" title=\"\"></i>" ..
"<A HREF=\""..hostinfo2detailsurl(server) .."\">".. msg.dhost .."</A>"..
" [Port: "..msg.dport.."]"
if(vlan_id ~= 0) then
rsp = rsp .. "[VLAN Id: " .. msg.info .. "]"
end
rsp = rsp .. "[L7: "..msg.l7.."]"
if(msg.info ~= "") then
rsp = rsp .. "[" .. msg.info .. "]"
end
-- tprint(rsp)
return(rsp)
end
-- #######################################################
return {
alert_key = alert_keys.ntopng.alert_lateral_movement,
i18n_title = "alerts_dashboard.lateral_movement",
i18n_description = formatLateralMovementErrorMessage,
icon = "fas fa-subway",
creator = createLateralMovementError,
}