A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at an interesting BAT file from 2020, which turned out to be a downloader for the Mass Logger infostealer.

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at a campaign in which the malicious actors decided to go reall “old school” when it comes to file formats they would use.

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at a 130 MB EXE carrying within it a 24 kB malicious payload.

Since there have been some small changes in the free online malware analysis sandbox landscape over the last couple of months, I've updated the comparison table to reflect them...

I decided to start a YouTube series on the History of Malware and the first video was published today...

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at a phishing campaign that has been running almost unchanged for more than a year and seems to be distributing exclusively Agent Tesla.

This page contains a list of freely accessible online malware sandboxes and analytical platforms that I currently find most useful, along with a short overview of their capabilities. The list is (and it is meant to be) non-exhaustive, but if you know of any sandbox which is not mentioned but offers interesting features, feel free to let me know about it. If you’d like to use the table in a presentation or share it on some other site, there is a PNG version bellow to make it easier.

Whether your work has anything to do with security monitoring, malware analysis, incident response, or just general IT administration, you’ve probably come across VirusTotal. It is an invaluable tool when it comes to identifying malicious code, however sometimes we need to dig a bit deeper than just getting a 'detection score' for a potentially dangerous file...

A Diary of mine was published today on the SANS Internet Storm Center. In this one we take a look at analysis of an interesting malicious document which turned out to be AZORult downloader. What made it stand out - among its other aspects - were 3 layers of home-grown encryption...

A Diary of mine was published today on the SANS Internet Storm Center. In this one we take a look at what last year brought us, when it comes to malware delivered by e-mail, specifically at the smallest and largest malicious files I found in my e-mail quarantine.