InfoSec 201 Archives - Black Hills Information Security: Recent Episodes

InfoSec 201 Archives - Black Hills Information Security

Penetration testing for Fortune 50 companies since 2008.

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This blog will be referencing the ICS/OT Backdoors & Breaches expansion deck created by BHIS and Dragos. We will be reviewing the ICS-focused Initial Compromise cards that are used to simulate a cyber incident and suggest potential mitigations to what is presented.

The post ICS Hard Knocks: Mitigations to Scenarios Found in ICS/OT Backdoors & Breaches appeared first on Black Hills Information Security.

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A great place that can sometimes be overlooked on an internal penetration test are the secrets hidden in plain sight. That is, a place where no authentication is required in […]

The post Auditing GitLab: Public Gitlab Projects on Internal Networks appeared first on Black Hills Information Security.

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DLL hollowing is an age-old technique used by malware authors to have a memory-backed shellcode. However, defensive mechanisms like CFG and XFG have made it incredibly difficult to implement such […]

The post DLL Jmping: Old Hollow Trampolines in Windows DLL Land appeared first on Black Hills Information Security.

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The WebSocket Protocol, standardized in 2011 with RFC 6455, enables full-duplex communication between clients and web servers over a single, persistent connection, resolving a longstanding limitation of HTTP that hindered […]

The post Can’t Stop, Won’t Stop Hijacking (CSWSH) WebSockets appeared first on Black Hills Information Security.

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Pentest reports sometimes include bad information under a heading like, “Weak TLS Configuration” or “Insecure SSL Certificates.” This article will explain how TLS is supposed to work, common ways it […]

The post Testing TLS and Certificates appeared first on Black Hills Information Security.

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Patterson Cake // PART 1 PART 2 In part one of “Wrangling the M365 UAL,” we talked about acquiring, parsing, and querying UAL data using PowerShell and SOF-ELK. In part […]

The post Wrangling the M365 UAL with SOF-ELK and CSV Data (Part 3 of 3) appeared first on Black Hills Information Security.

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Patterson Cake // In PART 1 of “Wrangling the M365 UAL,” we talked about the value of the Unified Audit Log (UAL), some of the challenges associated with acquisition, parsing, […]

The post Wrangling the M365 UAL with SOF-ELK on EC2 (Part 2 of 3) appeared first on Black Hills Information Security.

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Patterson Cake // When it comes to M365 audit and investigation, the “Unified Audit Log” (UAL) is your friend. It can be surly, obstinate, and wholly inadequate, but your friend […]

The post Wrangling the M365 UAL with PowerShell and SOF-ELK (Part 1 of 3) appeared first on Black Hills Information Security.

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Troy Wojewoda // In honor of Shark Week1, I decided to write this blog to demonstrate various techniques I’ve found useful when analyzing network traffic with Wireshark, as well as […]

The post Welcome to Shark Week: A Guide for Getting Started with Wireshark and TShark appeared first on Black Hills Information Security.

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Dale Hobbs // As the world becomes increasingly connected through the internet, cyber attacks have become more sophisticated and prevalent. One type of attack that you may not have heard […]

The post MITM6 Strikes Again: The Dark Side of IPv6 appeared first on Black Hills Information Security.

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Dale Hobbs // One thing that I almost always find when performing an internal network penetration test is Simple Network Management Protocol (SNMP) configured with default community strings. Simple Network […]

The post SNMP… Strings Attached! appeared first on Black Hills Information Security.

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Jordan Drysdale // Overview The following description of some of Impacket’s tools and techniques is a tribute to the authors, SecureAuthCorp, and the open-source effort to maintain and extend the […]

The post Impacket Offense Basics With an Azure Lab appeared first on Black Hills Information Security.

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Building a phishing engagement is hard. While the concept is straightforward, real-world execution is tricky. Being successful takes enormous amounts of up-front setup and knowledge in quickly evolving phishing tactics. […]

The post Webcast: How to Build a Phishing Engagement – Coding TTP’s appeared first on Black Hills Information Security.

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Bre Schumacher // As I was walking through the back to school display at the store the other day, I picked up a handy-dandy school supply list. Of course there were […]

The post Your Infosec Supply List appeared first on Black Hills Information Security.

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Kent Ickler // It seemed like we were always cross-referencing the Hashcat Wiki or help file when working with Hashcat. We needed things like specific flags, hash examples, or command […]

The post Hashcat 4.10 Cheat Sheet v 1.2018.1 appeared first on Black Hills Information Security.

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Lee Kagan* // Expanding upon the previous post in this series, I decided to rewrite C2K (find it here) to change its behavior and options for the user. In this […]

The post How to Build a Command & Control Infrastructure with Digital Ocean: C2K Revamped appeared first on Black Hills Information Security.

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Jordan Drysdale // tl;dr uBlock Origin appears, based on non-scientific testing, to be fairly effective at keeping trackers from making outbound HTTP GET requests. Tested Extensions: No Add-ons v Ghostery […]

The post Analyzing Extension Effectiveness with Burp appeared first on Black Hills Information Security.

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Jordan Drysdale // A few of us have discussed the stress that small and medium business proprietors and operators feel these days. We want to help stress you out even […]

The post Small and Medium Business Security Strategies: Part 2 appeared first on Black Hills Information Security.

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John Strand// In this webcast John talks about the new ACDC law and what it means exactly. There has been quite a bit of anger and great GIFs about hacking […]

The post WEBCAST: Proper Active Defense and the New ACDC Active Defense Law appeared first on Black Hills Information Security.

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Ethan Robish // In this series of posts, I’ll discuss how I segmented my home network using VLANs and how I moved away from using a risky consumer-grade router at […]

The post Home Network Design – Part 1 appeared first on Black Hills Information Security.

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Jordan Drysdale // The following content is loosely based on a presentation I gave at BSides Denver. After speaking at BSides Denver, one of the audience members spent some time […]

The post Review of the Data Brokers appeared first on Black Hills Information Security.