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Segurança Informática

Tópicos atuais sobre segurança da informação. A segurança informática é da responsabilidade de todos.

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Categoria: computer security

computer security, segurancainformatica

HTTPS – que informação é protegida

Posted on 28 Fevereiro, 201822 Março, 2018
http_to_https-1

Este artigo apresenta os principais beneficios da utilização do protocolo HTTPS. Descreve também, de forma breve, como uma ligação segura é estabelecida e que informação é encriptada.

computer security, Hacking

Servidores Memcached usados massivamente em ataques DDoS

Posted on 28 Fevereiro, 2018
memcached-amplification-ddos-attack

Os hackers descobriram uma maneira de abusar dos servidores Memcached para lançar poderosos ataques DDoS, tão devastadores que podem derrubar websites e também infraestruturas na Internet.

computer security, vulnerability

Facebook Flaw Exposed Page Administrators

Posted on 27 Fevereiro, 2018

Facebook has patched a vulnerability that exposed page administrators. The security researcher Mohamed Based reported the flaw this week

computer security, darkweb, Malware

Data Keeper Ransomware – Uma plataforma Ransomware-as-A-Service incomum e complexa

Posted on 26 Fevereiro, 2018
Data-Keeper-RaaS-login

O Ransomware Data Keeper, que infetou brutalmente vários sistemas, foi gerado por um novo serviço de Ransomware-as-a-Service (RaaS).

computer security, newsletter

Newsletter, 18-24 February

Posted on 25 Fevereiro, 201825 Fevereiro, 2018
newsletter

Atualização +500 milhões de palavras-passe no haveibeenpwned O serviço haveibeenpwned foi atualizado com mais de 500 milhões de novas palavras-passe leakead algures no tempo. Valide se a…

computer security, Data Breach

Atualização +500 milhões de palavras-passe no haveibeenpwned

Posted on 23 Fevereiro, 2018
Searching-for-a-Pwned-Password-768x359

O serviço haveibeenpwned foi atualizado com mais de 500 milhões de novas palavras-passe leakead algures no tempo. Valide se a sua palavra-passe pessoal, ou organizativa, fazem parte desta nova listagem.

computer security, Hacking, vulnerability

Vulnerabilidades críticas no Drupal versão 7 e 8

Posted on 23 Fevereiro, 2018
drupal-flaws

A equipa do Drupal revelou que foram identificadas vulnerabilidades críticas tanto na versão 7 como na versão 8 do seu CMS

computer security, Malware, reverse engineering, vulnerability

Drive-by download campaign targets Chinese websites

Posted on 23 Fevereiro, 201823 Fevereiro, 2018
wall

According to a research performed by Malwarebytes, sometimes are identified some bizarre findings or patterns we haven’t seen before. This was the case with a particular drive-by download attack planted on Chinese websites.

computer security, segurancainformatica

Incident Response And Computer Forensics

Posted on 22 Fevereiro, 201820 Fevereiro, 2018

Through incident response and combining it with a deep forensic analysis, the number of security issues and computer attacks can be reduced and detected at an early stage. This should be a mandatory role for the all ecosystems that can be audited, such as Cloud Infrastructures, mobile devices, operating systems, and so on.

computer security, Data Breach

AWS offers S3 bucket permissions to prevent data breaches

Posted on 21 Fevereiro, 2018

Amazon Web Services (AWS) has launched a new way that allows to the customers check whether their S3 buckets are leaking stored data.

computer security, vulnerability

Google revela, pela segunda vez numa única semana, outra vulnerabilidade no Windows 10

Posted on 21 Fevereiro, 2018
Microsoft-patch-tuesday-end

Mais uma vez, e pela segunda vez numa única semana, e depois dos 90 dias passados e definidos para resolução de problemas de segurança, o Google Project Zero revela outra vulnerabilidade crítica e não corrigida no Windows 10.

computer security, vulnerability

Execução remota de código no uTorrent

Posted on 21 Fevereiro, 201821 Fevereiro, 2018

De acordo com o Google Project Zero, foram identificadas várias vulnerabilidades no uTorrent, incluindo a execução remota de código. O uTorrent é um cliente BitTorrent com mais de 100 milhões de utilizadores ativos.

computer security, vulnerability

Novo remendo para vulnerabilidades no RubyGems

Posted on 20 Fevereiro, 2018
maxresdefault

Uma atualização do RubyGems, lançada na semana passada,  remenda vários problemas de segurança e corrige também vários tipos de vulnerabilidades.

computer security, Cryptography

Ligações HTTP irão ser marcadas como not secure

Posted on 19 Fevereiro, 201819 Fevereiro, 2018
google-set-to-name-shame-sites-lacking-https-showcase_image-8-p-2592

O Google vai classificar as ligações “não seguras — tráfego HTTP” como not secure dentro de 5 meses.

computer security, Hacking

Um grupo de hackers faz $3.4 milhoes ao instalarem cryptominers no Jenkins

Posted on 18 Fevereiro, 201819 Fevereiro, 2018
jenkins-open-source-automation-server

Uma organização criminosa ganhou $ 3,4 milhões comprometendo servidores Jenkins e usando um cryptominer para o Monero chamado de JenkinsMiner.

computer security, newsletter

Newsletter, 11-17 February

Posted on 18 Fevereiro, 2018
newsletter

Russian Central Bank comprometido – $31 milhões foram roubados É um facto que, o crescimento de ICOs é diretamente proporcional ao número de fraudes de…

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    Author – Founder

    pedro tavares

    Pedro Tavares is a professional in the field of information security, Head of Offensive Unit of ArtResilia firm and also working as an Ethical Hacker/Pentester, Malware Researcher and a Security Evangelist. He is also a founding member at CSIRT.UBI and 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 pentesting, malware, exploitation, hacking, IoT and security in Active Directory networks.  He is also Freelance Writer and developer of the 0xSI_f33d – a feed that compiles phishing and malware campaigns targeting Portuguese citizens. He also launched his GitBook, where he publishes some of his notes entirely online, and took his first steps in podcasting by launching the podcast 'Manhãs em Cibersegurança,' in the Portuguese language."

    Read more here.

    Newsletter

    #0xSI_f33d

    The Portuguese Abuse Open Feed

    si_f33d
    @ VirusTotal offical ingestor

    Add a new phishing / malware campaing into 0xSI_f33d

    Podcast “Manhãs em Cibersegurança”

    Infographic – Threat Report Portugal Q3 & Q4 2022

    si_f33d

    Download [PDF] or [PNG]

    Taking the bait: The modus operandi of massive social engineering waves impacting banks in Portugal

    clickthebait

    The new maxtrilha trojan is being disseminated and targeting several banks

    maxtrilha

    The clandestine Horus Eyes RAT: From the underground to criminals’ arsenal

    qbot

    A taste of the latest release of QakBot

    qbot

    Javali trojan weaponizing Avira antivirus legitimate injector

    javali

    Anubis Network – The evolution of the Phishing schema

    anubis

    Threat analysis: The emergent URSA trojan impacts many countries using a sophisticated loader

    ursa

    In-depth analysis of a trojan banker impacting Portugal and Brazil

    trojan_portugal_and_Brazil

    Grandoreiro malware May 2020 – Portugal

    The updated Grandoreiro Malware equipped with latenbot-C2 features in Q2 2020 now extended to Portuguese banks

    grandoreiro_portugal_2020

    Brazilian trojan banker is targeting Portuguese users using browser overlay

    predictions

    Trojan Lampion – Portugal

    predictions

    New release of Lampion trojan spreads in Portugal with some improvements on the VBS downloader

    lampion

    Banking Phishing Portugal

    Banking Phishing | Targets Portugal, Spain, Brazil and Chile | From Brazil | Infection process

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