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About PetitPotam, NetExec, and False Positives

Note: This blog post was originally written back in 2025 and slightly modified to be posted here. Introduction The idea for this came from a suspicion I had myself about false positives being reported in pentest reports from multiple security Read more

By Matheus Boschetti, 1 weekAugust 14, 2026 ago
Malware Development

Trusted Tools, Untrusted Intent: Using Slack as a C2 Channel

Introduction Most organizations make use of chat services for collaborative work, such as Slack, Microsoft Teams, or Mattermost. It’s the most popular method for companies that have adopted remote work to ensure ease of communication across different teams within the Read more

By Matheus Boschetti, 1 monthJuly 22, 2026 ago
Application Security

CVE-2024-29320: SQL Injection in Wallos

Introduction An open-source personal subscription tracker, Wallos designed to empower people to manage their finances with ease. Wallos is written in PHP with a SQLite database, it has over 1.000 stars in GitHub and over 100.00 downloads for its Docker Read more

By Matheus Boschetti, 2 yearsApril 4, 2024 ago
Application Security

CVE-2024-27613: Arbitrary File Manipulation in Numbas

Introduction Developed by Newcastle University’s School of Mathematics, Statistics, and Physics, Numbas is an open-source e-assessment/e-learning system. According to its website, Numbas is used in over 1.000 institutions worldwide and has been in use for over a decade. It is Read more

By Matheus Boschetti, 2 yearsMarch 15, 2024 ago
Defense Evasion

Bypassing PowerShell CLM with Custom Runspaces

Introduction Building upon the last technique for bypassing AppLocker default rules, this blog post aims to add another technique for bypassing CLM and executing PowerShell code. As per Microsoft’s own definition: PowerShell Constrained Language is a language mode of PowerShell Read more

By Matheus Boschetti, 3 yearsAugust 24, 2023 ago
Defense Evasion

Striking Blue: Picking Digital Lockers

Introduction After establishing a foothold inside a corporate Windows environment, there’s a considerable chance for an adversary to encounter several defenses in place. This blog post aims on showcasing a technique for bypassing application control policies that can be employed Read more

By Matheus Boschetti, 3 yearsAugust 20, 2023 ago
Defense Evasion

Leveraging Process Injection for AV Evasion

Introduction This blog post aims on showcasing a technique for Windows local payload execution, in addition to evading Antivirus solutions. The What and Why Process Injection has been around for many years, however, it is still heavily used by APT Read more

By Matheus Boschetti, 3 years ago
Red Team

Striking Blue: Throwing Rocks at the Panes – Part 2

Introduction Following up on the first part of the series, this blog post will expand and showcase techniques for initial access with client-side code execution. A technique that recently gained popularity is HTML Smuggling, which consists of storing a payload Read more

By Matheus Boschetti, 3 yearsJuly 23, 2023 ago
Red Team

Striking Blue: Throwing Rocks at the Panes – Part 1

Please note: the information and techniques described in the series are targeted at security enthusiasts and/or professionals for learning purposes and professional consultancy services. This does not, by any means, promote or incentivize the usage of the techniques for any Read more

By Matheus Boschetti, 3 yearsJuly 2, 2023 ago
Phishing

Evilginx: Hunting for Mastodons

Please note: the information and techniques here described are targeted at security enthusiasts and/or professionals for learning purposes and professional consultancy services. This does not, by any means, promote or incentivize the usage of the techniques for any cyber crime Read more

By Matheus Boschetti, 3 yearsJune 22, 2023 ago

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Recent Posts

  • About PetitPotam, NetExec, and False Positives
  • Trusted Tools, Untrusted Intent: Using Slack as a C2 Channel
  • CVE-2024-29320: SQL Injection in Wallos
  • CVE-2024-27613: Arbitrary File Manipulation in Numbas
  • Bypassing PowerShell CLM with Custom Runspaces

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