Today I’d like to share a quick analysis on a quite new and unknown threat spotted in the wild. The file which grabbed my attention is called Loader.js (md5: 59a03086db5ebd33615b819a7c3546a5) and if you wish you can download it from Yomi. A very similar (or maybe the same) threat has been observed in the past months […]Read more "Threat Actor: Unkown"
Nowadays malware authors use a lot of techniques to hide malicious payloads in order to bypass security products and to make malware analyst life harder and fun. There are many tools that you can use to extract content from malware and there is not a standard process, you can use different tools, different techniques and […]Read more "How To Unpack Malware: Personal Notes"
Advanced and Persistent Threats are often inoculated by emails or by exploiting exposed vulnerabilities. Since vulnerability exploitation follows specific waves, it depends on vulnerability trends, the email vector become one of the most (ab)used and stable way to inoculate Malicious and unwanted software. A common way to attack victims is to make her open an […]Read more "Tracking PhishingKits for Hunting APT Evolution"
According to the Yoroi annual cyber security report (available HERE), to Cyber Threat Trends (available HERE) and to many additional resources, Microsoft Office files (Word documents and Excel spreadsheet) are one of the most used malware loaders in the current era. Attackers lure victims, by seducing them to open a specially crafted Office document, which […]Read more "How to Reverse Office Droppers: Personal Notes"
If you are a security researcher or even a passionate about how attackers implement phishing you will find yourself to look for phishing kits. A phishing kit is not a phishing builder, but a real implementation (actually re-implementation) of a third party website built to lure your victim. Initially attackers use a phishing builder to […]Read more "Introducing PhishingKitTracker"
After six months from Cyber Threats Trends launch it’s time to check its main findings. When I decided to develop my own Cyber Threats Observatory I was not sure about its effectiveness and I was even more skeptical about the real usage from international cybersecurity communities. Fortunately many students, researchers and professionals used such a […]Read more "Cyber Threats Trends 6 Months Of Findings"
Hi Folks, today I want to share a quantitative analysis on a weird return-match by Upatre. According to Unit42 Upatre is an ancient downloader firstly spotted in 2013 used to inoculate banking trojans and active up to 2016. First discovered in 2013, Upatre is primarily a downloader tool responsible for delivering additional trojans onto the […]Read more "Is upatre downloader coming back ?"
Today I am so happy to announce a big improvement in the threats observatory (available for here). The main improvement sees the introduction of clustering stereotypes for each tracked malware family in three different behaviors: Domains, Files and Processes. Every malware does specific actions on domains, files and processes realms by meaning that every sample […]Read more "Cyber Threats Observatory Gets Improvements"
Trends are interesting since they could tell you where things are going. I do believe in studying history and behaviors in order to figure out where things are going on, so that every Year my colleagues from Yoroi and I spend several weeks to study and to write what we observed during the past months […]Read more "Cybersecurity Trends"
This is the fifth week my company (Yoroi) and I are working from home (covid-19). While every company process is running smooth and fast, personal quarantine is getting quite long and heavy especially if you are accustom to travel a lot for working purposes. Under these circumstances home office setup becomes very important as you […]Read more "Working From Home: Building Your Own Setup"