Rook ransomware analysis
Rook ransomware is relatively recent, and one of the advantages of this line’s other threats is the multithreading engine that pulverizes the encryption speed during…
Etiqueta: segurancainformatica
Brazilian trojan impacting Portuguese users and using the same capabilities seen in other Latin American threats
Introduction A new variant of a Brazilian trojan has impacted Internet end users in Portugal since last month (February 2022). Although there are no…
Phishing bancário as a service em Portugal com novo servidor C2
Nos últimos dias foi registada uma nova vaga de phishing a decorrer em Portugal utilizando um novo servidor command and control (C2) geolocalizado no Brasil….
The hidden C2: Lampion trojan release 212 is on the rise and using a C2 server for two years
The hidden C2: Lampion trojan release 212 is on the rise and using a C2 server for two years.
Threat Report Portugal: Q4 2021
Threat Report Portugal Q4 2021: Phishing and malware by numbers.
HelloKitty: The ransomware affecting CD Projekt Red and Cyberpunk 2077
HelloKitty: The ransomware affecting CD Projekt Red and Cyberpunk 2077
Taking the bait: The modus operandi of massive social engineering waves impacting banks in Portugal
Taking the bait: The modus operandi of massive social engineering waves impacting banks in Portugal in the last two years.
WastedLocker malware analysis
Introduction WastedLocker is the name of a data encryption malware, also called ransomware, which will be analyzed in this article. Systems infected with this piece…
Android vulnerability allows attackers to spoof any phone number
Introduction Because many employees use mobile devices for work, the widespread use of mobile devices has come to put company networks at risk for cyberattacks….
What is a side-channel attack?
Introduction The origin of the side-channel attack is closely related to the existence of physically observable phenomena caused by the execution of computing tasks in…
Porque aproveitar a negociação Forex para ter uma renda extra
A pandemia pode ter criado prejuízos financeiros na vida de todos, mas também trouxe valiosas lições financeiras. Não é de surpreender que todo mundo deseja…
Hack de certificados de vacinação COVID-19 no mundo e em Portugal
Hack de certificados de vacinação COVID-19 no mundo e em Portugal.
Troystealer malware analysis
We are living in an era where malware is part of our daily lives. Emergent campaigns are increasing, each more sophisticated and harder to detect…
The new maxtrilha trojan is being disseminated and targeting several banks
A new banking trojan dubbed maxtrilha (due to its encryption key) has been discovered in the last few days and targeting customers of European and…
Bypassing security products via DNS data exfiltration
Criminals are using different strategies to compromise computer networks, infrastructures, and organizations. Cyber incidents have increased in number and complexity since the exploitation of public…
Ragnar Locker – Malware analysis
Ragnar Locker is ransomware that affects devices running Microsoft Windows operating systems. It was initially observed towards the end of December 2019 as part of a series of attacks against compromised networks.