johnalvero

#!/bin/bash
#
# Setup a VPC IPSEC connectivity
# Oct 5, 2013

exec 2>&1

error() {
	echo "$@" >&2
	exit 1

johnalvero

#!/usr/bin/env perl

# Ubuntu: apt-get install libanyevent-aggressiveidle-perl liblinux-inotify2-perl libnet-amazon-s3-perl
use strict;
use warnings;
use utf8;
 
use AnyEvent;
use Linux::Inotify2;
use File::Find;

johnalvero

#!/bin/bash
# SSH Menu for bastion servers 
# John Alvero
# 2014 Nov 16
#
# To use, just set the user's shell to this script like so 
# jump:x:100:100::/home/jump:/opt/bin/jumpshell

function valid_host()
{

johnalvero

#!/usr/bin/perl

# John Homer Alvero
# May 2016
# SESsender.pl
#
# Usage: cat input.csv | ./SESsender.ph 

use MIME::Entity;
use Net::AWS::SES;

johnalvero

log4j RCE Exploitation Detection

You can use these commands and rules to search for exploitation attempts against log4j RCE vulnerability CVE-2021-44228

Grep / Zgrep

This command searches for exploitation attempts in uncompressed files in folder /var/log and all sub folders

sudo egrep -I -i -r '\$(\{|%7B)jndi:(ldap[s]?|rmi|dns|nis|iiop|corba|nds|http):/[^\n]+' /var/log