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

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Etiqueta: Computer Security

computer security, Cryptography

Metadados dos certificados X.509 podem transportar informações através da firewall

Posted on 6 Fevereiro, 2018
maxresdefault

Um investigador de seguraça, que no ano passado demonstrou que as trocas de certificados X.509 poderiam transportar tráfego malicioso publicou agora uma prova de conceito…

computer security, Cryptography

O código secreto do rei espanhol Fernando de Aragão foi decifrado 500 anos depois

Posted on 6 Fevereiro, 2018
catolico--644x362

Nas suas cartas mais secretas, o rei católico expressou fortemente o seu desacordo com algumas decisões do grande capitão durante a campanha de Nápoles, na…

computer security, Data Breach, vulnerability

A extensão Grammarly expõe praticamente tudo o que o utilizador escreve

Posted on 5 Fevereiro, 201819 Fevereiro, 2018
grammarly

De acordo com um relatório de Tavis Ormandy da equipa da Google Project Zero, a extensão Grammarly, usada por quase 22 milhões de utilizadores, expõem os tokens de autenticação permitindo que qualquer atacante possar aceder aos dados da vítima sem o seu prévio consentimento.

computer security, newsletter

Newsletter, 29-04 February

Posted on 4 Fevereiro, 2018
newsletter

Ransomware-as-a-service russo denominado GandCrab na darkweb Especialistas da empresa de segurança LMNTRIX descobriram um novo serviço de ransomware na darkweb denominado como GandCrab.   Roubados…

computer security, Hacking, vulnerability

Vulnerabilidades críticas no Tinder

Posted on 4 Fevereiro, 20184 Fevereiro, 2018
Tinder-app-693564

A Checkmarx relatou duas vulnerabilidades críticas na aplicação móvel Tinder, e que permite que os hackers tenham acesso às iterações dos utilizadores sem o seu consentimento.

computer security, Hacking, vulnerability

139 variantes de malware que exploram o Meltdown e Spectre

Posted on 3 Fevereiro, 20183 Fevereiro, 2018
139-malware-samples-identified-that-exploit-meltdown-spectre-flaws-2-768x521

Os hackers podem estar perto de desenvolver malware que explora falhas, sugere uma empresa de segurança alemã.

computer security, Cryptocurrency

Bitcoin e a sua queda desastrosa

Posted on 2 Fevereiro, 20182 Fevereiro, 2018
market-price

A criptomoeda Bitcoin caiu 30% esta semana,  a pior semana desde abril de 2013.

computer security, Hacking, Malware

Os websites pornográficos são uma mina de ouro para os hackers

Posted on 2 Fevereiro, 2018
180201-hackers-porn-sites-03

A pornografia está a ser usada como isca para um largo número de fraudes projetadas para roubar dinheiro e informações privadas.

computer security, Distributed Ledger, Internet of Things

A NASA e a blockchain

Posted on 2 Fevereiro, 20182 Fevereiro, 2018
NASA.width-800

Sendo os ledgers distribuídos uma tecnologia emergente nos diversos setores de IT, é sem grande surpresa que também a NASA está a ponderar usar a tecnologia nas suas aplicações.

computer security, Malware, Mobile

Google deleted more than 700.000 apps from its marketplace

Posted on 1 Fevereiro, 20186 Agosto, 2018
Google-Play

Google published a report on Android security Tuesday, announcing that more than 700,000 apps were removed from Google Play for violating marketplace policies.

computer security, vulnerability

Cisco Patches Critical VPN Vulnerability

Posted on 30 Janeiro, 2018
cisco_patches-680x400

Another day, another vulnerability. Cisco Systems released this Monday a patch to fix a critical vulnerability in its Secure Sockets Layer VPN solution called Adaptative Security Appliance.

computer security, vulnerability

Hijackers can bypass Active Directory controls

Posted on 30 Janeiro, 201830 Janeiro, 2018
1_hXTcjNeT0UiXBup-3U9kmw

Infosec researchers discovered a recent attack on Microsoft’s Active Directory software that let them insert their own domain controller into an existing enterprise setup.

computer security, Digital Identity

There is life beyond passwords

Posted on 30 Janeiro, 201830 Janeiro, 2018
ibmsecurity-012018-2

IBM carried out a study focused on the authentication method used when a user logging into applications and devices. Fingerprint is the most used method.

computer security, Data Breach, Hacking, Malware

Keylogger campaign infects 2,000 WordPress sites

Posted on 29 Janeiro, 201829 Janeiro, 2018
WP-keylogger

2,000 WordPress sites (possibly more) are infected with a keylogger that’s being loaded on the WordPress backend login page and a crypto jacking script (in-browser cryptocurrency miner) on their frontends.

computer security, vulnerability

Good news and bad news about Meltdown and Spectre in new Linux kernel

Posted on 29 Janeiro, 2018
linux-kernel-hacking

A new version of Linux kernel (4.15) has been released, nonetheless, more work is needed to be done security problems related to Meltdown and Spectre…

computer security, Cryptocurrency, Data Breach

Hacker steals $150.000 in Ethereum

Posted on 29 Janeiro, 2018
Heavens Gates Opening

Experty‘s Initial Coin Offering (ICO), is composed to raise funds for a “Skype-like voice and video application” which could also take secure payments through the…

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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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