PenTest

Shodan 101

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This entry is part 2 of 3 in the series Offensive Testing Enterprise Networks

Views: 14Shodan is a search engine for Internet-connected devices.It lets users search for various types of servers (webcams, routers, servers, etc.) connected to the internet using a variety of filters.Some have also described it as a search engine of service banners, which is metadata that the server sends back to the client.This can be information … Read more

GOAD v2 Installation

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This entry is part 3 of 3 in the series Attack and Defend Active Directory

Views: 30Game Of Active Directory The following steps explain the procedure to setup the GOADv2 LAB environment to pentest Active Directory. Warning This lab is extremely vulnerable, do not reuse recipe to build your environment and do not deploy this environment on internet without isolation (this is a recommendation, use it as your own risk). This … Read more

AD Fundamentals

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This entry is part 2 of 3 in the series Attack and Defend Active Directory

Views: 12Ransomware operators have been increasingly targeting Active Directory as a key part of their attack paths. The Conti Ransomware which has been used in more than 400 attacks around the world has been shown to leverage recent critical Active Directory flaws such as PrintNightmare (CVE-2021-34527) and Zerologon (CVE-2020-1472) to escalate privileges and move laterally in a target network.

Breaching AD

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This entry is part 1 of 3 in the series Attack and Defend Active Directory

Views: 39Active Directory (AD) is used by approximately 90% of the Global Fortune 1000 companies. If an organisation’s estate uses Microsoft Windows, you are almost guaranteed to find AD. Microsoft AD is the dominant suite used to manage Windows domain networks. However, since AD is used for Identity and Access Management of the entire estate, … Read more

Understanding Kerberos Authentication

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Views: 11Kerberos Authentication krbtgt account -→ KDC Service Account Ticket Details Authorization Data is Microsoft addition to Kerberos; can be manipulated to modify Group membership..etc and launch attacks. Domian Policy about Kerberos settings (default): The Authentication Service (AS) exchange ([RFC4120] section 3.1):<1> The Ticket-Granting Service (TGS) exchange ([RFC4120] section 3.3): The Client/Server Authentication Protocol (AP) exchange ([RFC4120] section … Read more

PowerView Cheat Sheet

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Views: 18up-to-date version of PowerView: New function naming schema: Verbs: Get : retrieve full raw data sets Find : ‘find’ specific data entries in a data set Add : add a new object to a destination Set : modify a given object Invoke : lazy catch-all Nouns: Verb-Domain* : indicates that LDAP/.NET querying methods are … Read more