Book Image

Security with Go

By : John Daniel Leon
Book Image

Security with Go

By: John Daniel Leon

Overview of this book

Go is becoming more and more popular as a language for security experts. Its wide use in server and cloud environments, its speed and ease of use, and its evident capabilities for data analysis, have made it a prime choice for developers who need to think about security. Security with Go is the first Golang security book, and it is useful for both blue team and red team applications. With this book, you will learn how to write secure software, monitor your systems, secure your data, attack systems, and extract information. Defensive topics include cryptography, forensics, packet capturing, and building secure web applications. Offensive topics include brute force, port scanning, packet injection, web scraping, social engineering, and post exploitation techniques.
Table of Contents (15 chapters)

Changing file timestamp

In the same way you can modify file permissions, you can modify the timestamps to make it look like it was modified in the past or in the future. This can be useful for covering your tracks and making it look like a file that has not been accessed in a long time or set it for a future date to confuse forensic investigators. The Go os package contains the utilities for modifying files.

In this next example, a file's timestamp is modified to look like it was modified in the future. You can tweak the futureTime variable to make a file look like it has been modified to any specific time. This example provides a relative time by adding 50 hours and 15 minutes to the current time, but you can also specify an absolute time:

package main

import (

func main() {
if len(os.Args) != 2 {