David García Where does ransomware attack? Three main pillars It all starts with a tweet from a researcher (Allan Liska from RecordedFuture) announcing that he is compiling a list of vulnerabilities currently being exploited by organised groups in...
David García What’s new in the OWASP 2021 ranking? OWASP, the foundation focused on web application security, has recently updated its ranking of the most prominent risks. Let’s take a look at the new reorganisation of the top,...
Raúl Hernáinz Ortega Data as a secure asset Data Management Summit as a preamble We are approaching one of the events where Telefónica will be present, and not only present, but also participating with its best professionals. An...
Félix Brezo Fernández The Work of a Cyber Intelligence Unit in The Context Of Incident Response Besides the work carried out by our colleagues in the forensic analysis, malware analysis or Threat Hunting teams, which we have reviewed in the articles in this series associated...
Telefónica Tech Cyber Security Weekly Briefing 18-24 September Malware campaign using TeamViewer on websites under IIS Malwarebytes researchers have observed a malware distribution campaign since the beginning of September that makes use of previously compromised pages running on Microsoft’s...
Diego Samuel Espitia If you own any Apple devices, run to update them On September 13, Apple surprised its users with a system update on iPhone, iWatch, iPad and macOS, something that doesn’t happen very often and less often comes with an...
Víctor José González Arcos DFIR services in a ransomware incident response As we saw in the first post of the series, the IR (incident response) process in case of attacks using ransomware is fundamental, relying on the work of several...
Cristina del Carmen Arroyo Siruela The human factor: a key element of cyber security When it is said that a server needs to be bastioned, cybersecurity personnel have an idea of what it is and what it consists of. But what about securing...
Bernardo Campillo Telefónica Tech at the top of the IoT and Big Data podium Today we want to revisit with you some good news that we received in mid-June, a little before the holiday season in July and August, a little before summer,...
Diego Samuel Espitia PackageDNA Our Development Package Analysis Framework That Made Its Debut at Blackhat After several months of research and development, during the BlackHat USA 2021 Arsenal event, you saw our deep analysis tool for development packages called PackageDNA, in the talk “Scanning...
Innovation Marketing Team Partnerships that escalate entrepreneurship and innovate the corporation: Ten Wayra startups that do business with Vivo With 10 years of operations, Wayra has transformed the entrepreneurial ecosystem in Brazil and worldwide. Since its launch in 2011, when it was created to support entrepreneurship, Wayra has...
Florence Broderick Quick and dirty script in Powershell to check certificate fingerprints Malware is using signed binaries to attack Windows systems. Malware needs it to get into the roots of the operative system. So attackers steal or create their own certificates....
Florence Broderick How to bypass antiXSS filter in Chrome and Safari (discovered by ElevenPaths) Modern browsers usually have an antiXSS filter, that protects users from some of the consequences of this kind of attacks. Normally, they block cross site scripting execution, so the...
Florence Broderick How does blacklisting work in Java and how to take advantage of it (using whitelisting) Oracle has introduced the notion of whitelisting in its latest version of Java 7 update 40. That is a great step ahead (taken too late) in security for this...
Florence Broderick Showing certificate chain without validating with Windows "certificate store" (C#) Java has its own independent certificate store. If you wish to view natively in Windows a certificate extracted from an APK or JAR file Windows may not find the...
