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Author Archives: NULLZ

Should I be seeing network management protocols on ‘user’ subnets?

Posted on June 10, 2021 by NULLZ

When performing a passive packet capture of a network, I have seen a large amount of traffic being broadcast using different protocols. These protocols are primarily used to perform some kind of traffic routing/fail over/redundancy in case… Continue reading Should I be seeing network management protocols on ‘user’ subnets?→

Posted in network, protocols, Routing, switch

Is it safe to deploy software without memory protections such as DEP/ASLR?

Posted on April 17, 2019 by NULLZ

Several software packages on our SOE Windows machines come with DEP and ASLR memory protections off by default. More troubling is that these applications run as SYSTEM and load their own drivers.

Given that these are expecte… Continue reading Is it safe to deploy software without memory protections such as DEP/ASLR?→

Posted in ASLR, dep, memory

NTLM/LM Hashes on Domain Controller

Posted on April 20, 2014 by NULLZ

I’ve noticed that when extracting password hashes from a domain controller (using Elcomsoft proactive password auditor) sometimes I’ll get LM and NTLM hashes and other times I’ll only get NTLM hashes.

I note that the NTLM + LM hashes (the… Continue reading NTLM/LM Hashes on Domain Controller→

Posted in hash, password cracking, passwords, Windows

Black-box fuzzing a TCP Port running an unknown applicaiton

Posted on November 6, 2013 by NULLZ

I’m looking for any guidance around testing a service I’ve found running on a target server. I’m doing a ‘black-box’ pen-test and the company is one of those ‘I-don’t-want-to-tell-you-anything’ types so they won’t tell us wha… Continue reading Black-box fuzzing a TCP Port running an unknown applicaiton→

Posted in black-box, fuzzing, penetration-test, TCP

How to track a Spoofed SMS on Iphone

Posted on November 5, 2013 by NULLZ

A mate pulled a quality prank on me the other day by sending me a SMS via a Spoofed number. He’s bought a SMS gateway and can set the message ID/phone number to be ‘God’ (or whatever he wants(letters or numbers)).
I wanted t… Continue reading How to track a Spoofed SMS on Iphone→

Posted in iPhone, Mobile, phone | Tagged spoofing

Physically Blocking All PC Ports?

Posted on August 27, 2013 by NULLZ

I’ve got a laptop that is currently ‘Air Gapped’ that I want to further secure by locking down the USB ports and NIC. I’ve disabled the NIC from the BIOS, removed the WiFi and bluetooth modules. But I don’t want to disabled t… Continue reading Physically Blocking All PC Ports?→

Posted in network, physical, USB drive

Password list generation

Posted on May 9, 2013 by NULLZ

I’ve found during a lot of recent pen-tests that companies will use passwords like

c0mp4ny@b(

for a company called “company abc”

Is there any quick and easy way to generate a list of passwords based on as many possible ‘leet speak’ … Continue reading Password list generation→

Posted in attacks, dictionary, password cracking, passwords

What are the advantages and disadvantages of different types of motion sensors?

Posted on May 4, 2013 by NULLZ

I understand there are a number of different motion sensor technologies out there, including Active Infrared (AIR), Passive Infrared (PIR), Microwave and Ultrasonic motion sensors.

I would like to know what the advantages a… Continue reading What are the advantages and disadvantages of different types of motion sensors?→

Posted in physical

How can I find subdomains of a site?

Posted on April 30, 2013 by NULLZ

One of the things I need to do from time to time is to find subdomains of a site for example.

Starting with example.com

sub1.example.com
other.example.com
another.example.com

I’m looking for any additional ways to perf… Continue reading How can I find subdomains of a site?→

Posted in dns, dns-domain, reconnaissance, sub-domain

Should web sites disable form autocomplete on all forms?

Posted on April 10, 2013 by NULLZ

I’ve noticed that some web-app security scanners flag the ‘AutoComplete’ feature of some websites (in the username/password fields) as a security risk and thus suggest including AutoComplete=off or in the code somewhere.

I’v… Continue reading Should web sites disable form autocomplete on all forms?→

Posted in web-application

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