Ahmed Musaad - Ahmed Musaad (Page 7)

Listen To VoIP Calls in PCAP Files Using Wireshark

One question in CyberDefender's most recent challenge taught me something new. The question asked you to listen to the audio stream that can be found in the PCAP file to find the flag and claim the points. I never knew Wireshark supports doing this hence this TIL.

2 min read Dec 8, 2020

HOWTOs public

Pinned Messages in Slack Channels

Ahmed Musaad

The way pinned messages work in Slack is one of the things I find frustrating about the platform. If I pin a message, I expect it to remain visible in the channel not tucked into a side tab. This post outlines a rough PoC for a Slack application that can help you "truly" pin your messages.

6 min read Dec 7, 2020

Challenge public

macOS Forensics: Spotlight Challenge

Ahmed Musaad

It's been a while since I did any forensic challenges, so I was excited when I saw this new challenge from CyberDefenders. Even though I never did any macOS forensics, I did quite well on this challenge (solved 14/16 questions) and learned a bunch. This post is my attempt at a quick recap.

3 min read Dec 6, 2020

Thesis public

Writing The Master Thesis

Ahmed Musaad

Writing a master thesis is an exciting journey, no matter the topic. To share my "excitement", I am writing this public journal to document most (if not all) of my research journey.

2 min read Nov 18, 2020

Personal public

500 Pictures

Ahmed Musaad

There is something unique about being able to scroll through a chronologically-ordered feed of your memories, along with your friend's comments and reactions.

3 min read Nov 16, 2020

WeeklySecurityTip public

Weekly Security Tip: Review Apps On Your Phone

Ahmed Musaad

Phones are an integral part of our life; we use them to take pictures, write journals, browse social media, work on our tasks, and even have important work meetings or edit sensitive documents. In this post, I share with you one useful habit I developed over the years when it comes to phone hygiene.

1 min read Oct 21, 2020

HOWTOs public

Convert DMG To PKG

Ahmed Musaad

Many macOS applications come in DMG format, which is perfectly fine until you need to deploy one of these applications using your enterprise MDM solution. Most MDMs only work with PKG files so you must convert the application from DMG to PKG before you deploy it.

2 min read Oct 12, 2020

WeeklySecurityTip public

Weekly Security Tip: Use Authy

Ahmed Musaad

With Authy, you can configure two-factor authentication on all of your accounts fully knowing you will have access to these codes across devices and at worst, backups of them.

1 min read Oct 12, 2020

MDM public

The Mystery of Random Kernel Extension Alerts

Ahmed Musaad

One day, some users started getting annoying popup warnings telling them macOS has blocked a kernel extension that's used by specific software. This post is a rough account of how we investigated and found a possible solution for the root cause of this issue.

3 min read Oct 6, 2020

Personal public

OnePlus 8 Pro

Ahmed Musaad

The latest phone from OnePlus™️, the OnePlus 8 Pro, is my new personal phone. It has a great processor, an ample amount of ram, a magnificent 120 Hz display, a 4510 mAh battery, and an OS that's as close to stock Android as we can get.

2 min read Jun 22, 2020

TIL public

TIL: Sysdiagnose

Ahmed Musaad

Sysdiagnose is a diagnostic tool available on all Apple products. It collects information and logs from various parts of the systems to provide a full image of the system state at a certain point in time. The data collected is quite comprehensive and covers a wide range of aspects.

1 min read Jun 13, 2020

HOWTOs public

Collect CPU & Memory Usage Information Using psrecord

Ahmed Musaad

A few days ago, I found myself needing to collect the CPU and Memory usage information of applications over an extended period. In this post, I share with you a brilliant tool that can assist you in collecting this data and plotting it in an easy-to-consume graph.

2 min read Jun 6, 2020