Pedro Tavares

Pedro Tavares is a professional in the field of information security working as an Ethical Hacker, Malware Analyst and a Security Evangelist. He is also Editor-in-Chief of the security computer blog seguranca-informatica.pt.

In recent years, he has invested in the field of information security, exploring and analyzing a wide range of topics, such as malware, reverse engineering, pentesting (Kali Linux), hacking/red teaming, mobile, cryptography, IoT, and security in computer networks. He is also a Freelance Writer.

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Malware analysis March 18, 2021 Pedro Tavares

Fileless Windows Error Reporting (WER) malware attack: Technical overview and walkthrough

In October 2020, a newly uncovered malware named Kraken was observed in the wild. This malicious piece of malware is abusing the Windows Error Reporting service...

Malware analysis March 17, 2021 Pedro Tavares

Bandook malware: What it is, how it works and how to prevent it

Bandook malware is a remote access trojan (RAT) first seen in 2007 and active for several years. Bandook RAT, written in both Delphi and C++, was first seen...

Malware analysis March 3, 2021 Pedro Tavares

Ghimob Trojan Banker: What it is, how it works and how to prevent it | Malware spotlight

Introduction Malware is a popular term used to classify software with bad proposes that is part of our lives these days. Ghimob Trojan Banker is one of the...

Vulnerabilities February 24, 2021 Pedro Tavares

SonicWall firewall VPN vulnerability (CVE-2020-5135): Overview and technical walkthrough

A critical stack-based buffer overflow vulnerability was discovered in SonicWall Network Security Appliance (NSA) VPN. In this article, we will address the...

Malware analysis February 17, 2021 Pedro Tavares

Stantinko Trojan: What it is, how it works and how to prevent it | Malware spotlight

The number of threats attacking Linux systems have exploded in recent days. Within this context, a botnet that impacted several countries in the past, including...

Malware analysis February 10, 2021 Pedro Tavares

Vizom malware: What it is, how it works and how to prevent it | Malware spotlight

The Vizom Trojan is an active piece of malware targeting online banking users in Brazil that takes advantage of the window overlay technique to steal user’s...

Network security February 3, 2021 Pedro Tavares

Exploiting built-in network protocols for DDoS attacks

A distributed denial-of-service (DDoS) attack is an attempt to make an online service unavailable to users, usually by temporarily interrupting or suspending...

Vulnerabilities February 2, 2021 Pedro Tavares

Zerologon CVE-2020-1472: Technical overview and walkthrough

Zerologon is the name of an elevation of privilege vulnerability in which an attacker establishes a vulnerable Netlogon secure channel connection to a Domain...

Malware analysis January 20, 2021 Pedro Tavares

RansomExx: The malware that attacks Linux OS

RansomExx is the new malware used by criminals to attack both Windows and Linux environments. With companies using a mixed environment of Windows and Linux...

Malware analysis January 13, 2021 Pedro Tavares

RegretLocker ransomware: What it is, how it works and how to prevent it | Malware spotlight

In October 2020, a new piece of data encryption malware made the headlines. RegretLocker is novel ransomware that can bypass the long encryption times required...

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