Published | JUMPSEC LABS

Building Forensic Expertise: A Two-Part Guide to Investigating a Malicious USB Device (Part 1)

by Emilia Chau, Marin Gheorge, Muhammad Jawad | Aug 28, 2024 | Forensics, Incident Response

JUMPSEC believes heavily in learning and developing through real world experience. The incident described in this blog post presented a fantastic opportunity for 3 junior team members to learn first hand how to conduct, report and respond to an incident investigation. This blog post is split into two parts: Part I focuses on the prerequisites and preparation work done before kicking off the investigation, such as explaining the forensic principles used in the investigation, how the evidence is preserved and introducing tools deployed. Part 2 emphasises on how we utilise the tools to conduct the investigation and how we assemble all the available evidence to conclude the investigation. Imagine, you come into work one morning to find a mysterious USB drive on your desk. It’s not addressed to anyone in particular and no note is left to explain its origin. What would you do? The suspicious...

What’s in a Name? Writing custom DNS tunnelling protocol, exploiting unexpected AWS Lambda misconfiguration – in a web app Pen test (Part 1)

This is a war story of an AWS web application test where remote code execution was first obtained on the client's application. Then I needed to write my own DNS tunnelling...

WASM Smuggling for Initial Access and W.A.L.K. Tool Release

TL;DR This blog post introduces Web Assembly (WASM) as a powerful alternative to traditional web technologies, highlighting its appeal to cybersecurity professionals for evading...

API Hooking Framework

by Daniel | Jun 7, 2020 | Jumpsec

An API hooking framework, composed by a Windows driver component for library injection, a DLL file for function hooking and reporting, and a web service presenting a user interface and managing the communications between the user and the other components.The framework is aimed towards desktop application testing and vulnerability research: allows a granular monitoring of one or more processes at...

shad0w

by bats3c | Jun 3, 2020 | Detection, Exploitation

Post exploitation is large part of a red team engagement. While many organisations begin to mature and start to deploy a range of sophisticated Endpoint Detection & Response solutions (EDR) onto their networks, it requires us, as attackers to also mature. We need to upgrade our arsenal to give us the capabilities to successfully operate on their networks. That is why today, I am releasing shad0w.

shad0w is a post exploitation framework which is designed to operate covertly on such networks, providing the operator with much greater control over their engagements. Over future blog posts I will go into greater detail on the intricacies of how shad0w works. This blog post will, therefore, serve as an introduction into the usage and features that shad0w has to offer.

A Defender’s Guide For Rootkit Detection: Episode 1 – Kernel Drivers

by rootkid8 | Apr 20, 2020 | Detection, Exploitation, Jumpsec

Recently JUMPSEC’s youngest red team researcher @_batsec_ raised the bar once more using rootkit techniques to universally evade Sysmon.

Bypassing Antivirus with Golang – Gopher it!

by warden | Jun 20, 2019 | Detection, Jumpsec

In this blog post, we’re going to detail a cool little trick we came across on how to bypass most antivirus products to get a Metepreter reverse shell on a target host. This all started when we came across a Github repository written in Golang, which on execution could inject shellcode into running processes. By simply generating a payload with msfvenom we tested it and found that it was easily...

Enhanced logging to detect common attacks on Active Directory– Part 1

by bugsbunny | Feb 6, 2019 | Detection, Jumpsec

In this blog post I am going to tackle the topic of detecting common attacks using Active Directory logs. It is important to understand the power of data in InfoSec world. Too much data means you’ll be spending rest of the week digging through millions of log entries to try and figure out what the adversary was up to. You can set filters to help you through this, however it can get...

Short introduction to Network Forensics and Indicators of Compromise (IoC)

by | Jun 28, 2016 | Incident Response, Monitoring, Network Forensics, Network Tools, Pcap analysis, Research

“Indicator of compromise (IOC) in computer forensics is an artifact observed on a network or in an operating system that with high confidence indicates a computer intrusion. Typical IOCs are virus signatures and IP addresses, MD5 hashes of malware files or URLs or domain names of botnet command and control servers. After IOCs have been identified in a process of incident response and computer...

CVE 2015-7547 glibc getaddrinfo() DNS Vulnerability

by Ed Chan | Mar 7, 2016 | Exploitation, Research, Security Bug

Hello w0rld! JUMPSEC researchers have spent some time on the glibc DNS vulnerability indexed as CVE 2015-7547 (It hasn’t got a cool name like GHOST unfortunately…). It appears to be a highly critical vulnerability and covers a large number of systems. It allows remote code execution by a stack-based overflow in the client side DNS resolver. In this post we would like to present our analysis....

Research and Development

by | Jan 28, 2016 | Binary Analysis, Network Tools, Obfuscation, Research

Hello w0rld. On this post we would like to let you know our areas of research and the research projects that we are working on currently. For 2016 we are planning to develop tools that will be used in our tests. Our areas of interest can be highlighted as: AntiVirus Detection and Evasion techniques (sandbox detection, etc) Packers, anti-debugging, anti-disassembly and binary obfuscation Network...

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JUMPSEC LABS

Building Forensic Expertise: A Two-Part Guide to Investigating a Malicious USB Device (Part 1)

What’s in a Name? Writing custom DNS tunnelling protocol, exploiting unexpected AWS Lambda misconfiguration – in a web app Pen test (Part 1)

WASM Smuggling for Initial Access and W.A.L.K. Tool Release

API Hooking Framework

shad0w

A Defender’s Guide For Rootkit Detection: Episode 1 – Kernel Drivers

Bypassing Antivirus with Golang – Gopher it!

Short introduction to Network Forensics and Indicators of Compromise (IoC)

CVE 2015-7547 glibc getaddrinfo() DNS Vulnerability

Research and Development

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