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...
ElevenPaths Cyber Security Weekly Briefing 25 September – 1 October Let’s Encrypt root certificate expires (DST Root CA X3) A few days ago, Scott Helme, founder of Security Headers, highlighted the 30 September as the date when Let’s Encrypt’s root certificate, DST...
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,...
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...
Telefónica Tech Cyber Security Weekly Briefing 11-17 September S.O.V.A. – New Android banking trojan Researchers at Threat Fabric have discovered the existence, at least since the beginning of August, of a new banking trojan for Android which they...
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...
Florence Broderick Evil FOCA is now Open Source We are really happy to announce that Evil FOCA is now Open Source. We have received lots of comments and feedback about how you are using Evil FOCA, or how...
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 HookMe, a tool for intercepting communications with API hooking HookMe is a tool for Windows that allows to intercept system processes when calling APIs needed for network connections. The tool, still in beta, was developed by Manuel Fernández (now...
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 Quick and dirty shellcode to binary python script https://google-code-prettify.googlecode.com/svn/loader/run_prettify.js If you work with exploits and shellcode, you already know what shellcode is and how to deal with it. Sometimes it comes with exploits in C, Perl, Python…...
