RecordIDのチェック,構造体の名称変更

This commit is contained in:
akiranishikawa
2020-09-23 09:47:56 +09:00
parent d3b368b680
commit e49e90931e
5 changed files with 119 additions and 41 deletions

48
src/detections/common.rs Normal file
View File

@@ -0,0 +1,48 @@
use std::collections::HashMap;
use crate::models::event;
#[derive(Debug)]
pub struct Common {
record_id: u64,
date: String,
record_id_list : HashMap<String, String>,
}
impl Common {
pub fn new() -> Common {
Common {
record_id: 0,
date: "".to_string(),
record_id_list: HashMap::new(),
}
}
pub fn disp(&self) {
for (record_id, date) in self.record_id_list.iter() {
println!("date:{:?} record-id: {:?}", date, record_id);
}
}
pub fn detection(&mut self, system: &event::System, event_data: &HashMap<String, String>) {
&self.check_record_id(system);
}
//
// Record IDがシーケンスになっているかチェック
//
fn check_record_id(&mut self, system: &event::System) {
let event_record_id: u64 = system.event_record_id.parse().unwrap();
if self.record_id > 0 && event_record_id - self.record_id > 1 {
self.record_id_list.insert(self.record_id.to_string() + " - " + &system.event_record_id.to_string(),
self.date.to_string() + " - " + &system.time_created.system_time.to_string());
}
self.record_id = event_record_id;
self.date = system.time_created.system_time.to_string();
}
}

View File

@@ -1,3 +1,4 @@
pub mod common;
pub mod security;
pub mod system;
pub mod application;

View File

@@ -1,4 +1,5 @@
use std::collections::HashMap;
use crate::models::event;
#[derive(Debug)]
pub struct Security {
@@ -26,7 +27,7 @@ impl Security {
}
}
pub fn detection(&mut self, event_id: String, event_data: HashMap<String, String>) {
pub fn detection(&mut self, event_id: String, system: &event::System, event_data: HashMap<String, String>) {
if event_id == "4672" {
&self.se_debug_privilege(event_data);
@@ -41,7 +42,7 @@ impl Security {
match event_data.get("PrivilegeList") {
Some(privileage_list) => {
match privileage_list.find("SeDebugPrivilege") {
Some(data) => {
Some(_data) => {
// alert_all_adminが有効であれば、標準出力して知らせる
// DeepBlueCLIでは必ず0になっていて、基本的には表示されない。

View File

@@ -7,6 +7,7 @@ use std::process;
use std::path::PathBuf;
use quick_xml::de::{DeError};
use yamato_event_analyzer::models::event;
use yamato_event_analyzer::detections::common;
use yamato_event_analyzer::detections::security;
use yamato_event_analyzer::detections::system;
use yamato_event_analyzer::detections::application;
@@ -15,13 +16,13 @@ fn main() -> Result<(), DeError> {
let args: Vec<String> = env::args().collect();
let fp: PathBuf;
if (args.len() > 1) {
if args.len() > 1 {
fp = PathBuf::from(args[1].to_string());
} else {
fp = PathBuf::from(format!("./samples/security.evtx"));
}
let mut common = common::Common::new();
let mut security = security::Security::new();
let mut system = system::System::new();
let mut application = application::Application::new();
@@ -37,15 +38,18 @@ fn main() -> Result<(), DeError> {
match record {
Ok(r) => {
let event: event::Evtx = quick_xml::de::from_str(&r.data)?;
let event_id = event.System.EventID.to_string();
if event.System.Channel == "Security" {
let event_data = event.parse_event_data();
&security.detection(event_id, event_data);
} else if event.System.Channel == "System" {
let event_id = event.system.event_id.to_string();
let channel = event.system.channel.to_string();
let event_data = event.parse_event_data();
&common.detection(&event.system, &event_data);
if channel == "Security" {
&security.detection(event_id, &event.system, event_data);
} else if channel == "System" {
&system.detection();
} else if event.System.Channel == "Application" {
} else if channel == "Application" {
&application.detection();
} else {
//&other.detection();
}
},
Err(e) => eprintln!("{}", e),
@@ -55,6 +59,7 @@ fn main() -> Result<(), DeError> {
////////////////////////////
// 表示
////////////////////////////
common.disp();
security.disp();
Ok(())

View File

@@ -4,55 +4,78 @@ use std::collections::HashMap;
#[derive(Debug, Deserialize, PartialEq)]
pub struct Data {
pub Name: Option<String>,
#[serde(rename = "Name")]
pub name: Option<String>,
#[serde(rename = "$value")]
pub Text: Option<String>,
pub text: Option<String>,
}
#[derive(Debug, Deserialize, PartialEq)]
struct TimeCreated {
SystemTime: String,
pub struct TimeCreated {
#[serde(rename = "SystemTime")]
pub system_time: String,
}
#[derive(Debug, Deserialize, PartialEq)]
struct Execution {
ProcessID: i32,
ThreadID: i32,
#[serde(rename = "ProcessID")]
process_id: i32,
#[serde(rename = "ThreadID")]
thread_id: i32,
}
#[derive(Debug, Deserialize, PartialEq)]
struct Provider {
Name: Option<String>,
Guid: Option<String>,
#[serde(rename = "Name")]
name: Option<String>,
#[serde(rename = "Guid")]
guid: Option<String>,
}
#[derive(Debug, Deserialize, PartialEq)]
pub struct System {
Provider: Provider,
pub EventID: String,
Version: Option<String>,
Level: String,
Task: String,
Opcode: Option<String>,
Keywords: String,
TimeCreated: TimeCreated,
EventRecordID: String,
Correlation: Option<String>,
Execution: Option<Execution>,
pub Channel: String, // Security, System, Application ...etc
Computer: String,
Security: String,
#[serde(rename = "Provider")]
provider: Provider,
#[serde(rename = "EventID")]
pub event_id: String,
#[serde(rename = "Version")]
version: Option<String>,
#[serde(rename = "Level")]
level: String,
#[serde(rename = "Task")]
task: String,
#[serde(rename = "Opcode")]
opcode: Option<String>,
#[serde(rename = "Keywords")]
keywords: String,
#[serde(rename = "TimeCreated")]
pub time_created: TimeCreated,
#[serde(rename = "EventRecordID")]
pub event_record_id: String,
#[serde(rename = "Correlation")]
correlation: Option<String>,
#[serde(rename = "Execution")]
execution: Option<Execution>,
#[serde(rename = "Channel")]
pub channel: String, // Security, System, Application ...etc
#[serde(rename = "Computer")]
computer: String,
#[serde(rename = "Security")]
security: String,
}
#[derive(Debug, Deserialize, PartialEq)]
pub struct EventData {
pub Data: Option<Vec<Data>>,
#[serde(rename = "Data")]
pub data: Option<Vec<Data>>,
}
#[derive(Debug, Deserialize, PartialEq)]
pub struct Evtx {
pub System: System,
pub EventData: Option<EventData>,
#[serde(rename = "System")]
pub system: System,
#[serde(rename = "EventData")]
pub event_data: Option<EventData>,
}
impl Evtx {
@@ -62,7 +85,7 @@ impl Evtx {
//
fn get_string(v: &Data) -> String {
match &v.Text {
match &v.text {
Some(text) => {
return text.to_string();
},
@@ -73,15 +96,15 @@ impl Evtx {
//
// EventDataをHashMapとして取得する
//
pub fn parse_event_data(self) -> HashMap<String,String> {
pub fn parse_event_data(&self) -> HashMap<String,String> {
let mut values = HashMap::new();
match self.EventData {
match &self.event_data {
Some(event_data) =>
match event_data.Data {
match &event_data.data {
Some(data) => {
for v in data.iter() {
match &v.Name {
match &v.name {
Some(name) => {
values.insert(name.to_string(), Evtx::get_string(v));
},