How to Reverse Office Droppers: Personal Notes

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 […]

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Working From Home: Building Your Own Setup

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 […]

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Iranian Threat Actors: Preliminary Analysis

Nowadays Iran’s Cybersecurity capabilities are under microscope, many news sites, gov. agencies and security experts warn about a possible cybersecurity infiltration from Iranian government and alert to increase cybersecurity defensive levels. Today I want to share a quick and short study based on cross correlation between MITRE ATT&CK and Malpedia about some of the main […]

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Frequent VBA Macros used in Office Malware

Nowadays one of the most frequent cybersecurity threat comes from Malicious (office) document shipped over eMail or Instant Messaging. Some analyzed threats examples include: Step By Step Office Dropper Dissection, Spreading CVS Malware over Google, Microsoft Powerpoint as Malware Dropper, MalHIDE, Info Stealing: a New Operation in the Wild, Advanced All in Memory CryptoWorm, etc. […]

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Writing Your First Bootloader for Better Analyses

From time to time we might observe special Malware storing themselves into a MBR and run during the booting process. Attackers could use this neat technique to infect and to mess-up your disk and eventually asking for a ransom before restoring original disk-configurations (Petya was just one of the most infamous boot-ransomware). But this is […]

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University, Professional Certification or Direct Experience ?

Today I’d like to share a simple and personal thought about teaching models on cybersecurity. Quite often students ask me how to improve their technical skills and the most common question is: “would it be better an university course a professional certification or getting directly on the field working in a Cybersecurity company ?”. The […]

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Scraping the TOR for rare contents

Scraping the “TOR hidden world” is a quite complex topic. First of all you need an exceptional computational power (RAM mostly) for letting multiple runners grab web-pages, extracting new links and re-run the scraping-code against the just extracted links. Plus a queue manager system to manage scrapers conflicts and a database to store scraped data […]

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