You downloaded malware file and left it on your desktop,
First, I ran Sirius LLM, the portable version made available by
@danb himself here in the thread that I downloaded. I hadn't downloaded the malware sample yet. So, I just ran a scan with Sirius LLM on my computer, and it analyzed all the active processes running, and all of them were considered safe. I believe that here it may have used WhitelistCloud. I assume
@danb can correct me if I'm wrong. So, as I'm curious, it's a new tool for me, so I had this idea of looking for some new malware samples on the web, which is quite easy to find today. When you download these samples, they come compressed and password-protected, precisely so they are not deleted by AVs when downloaded. These samples are useful for security experts to analyze, demystify, and reverse engineer, especially when it is malware created and sponsored by the state. Of course, they are also useful for enthusiasts, malware testers, and curious people like me lol. Before extracting the sample from the compressed file, I had to disable my real-time AV protection to extract the sample to my desktop, which I did on my physical machine. I extracted the sample to my desktop and ran a new scan with Sirius LLM, which had already analyzed my computer's execution processes and deemed it safe. With the sample already on my desktop, I ran another scan with Sirius LLM, and it almost instantly flagged this file as unsafe in red. I came to the conclusion that Sirius LLM works similarly to an AV that scans new and tampered files. Since this malware sample was new, I had extracted it to my desktop after running the first scan with Sirius, so on the second scan, Sirius LLM detected this sample without any major problems.
but did not open / run it, correct??
Yes, that's correct. I didn't open or run the malware sample file, I just extracted the compressed file containing the malware sample. It would be almost impossible to run any malware sample or any script or executable even if I disabled the AV on my computer. Because I have SAC enabled on my machine, I have SmartScreen, and I still have WHHL enabled, I would have to go through all these obstacles to run something. So I consider my AV to be the first line of defense. That's why it's important to have CyberLock and Sirius LLM, which act as an extra layer of security protection.
I thought Sirius snapshot was only scanning running apps,
Yes, Sirius analyzes running processes and apps, but it also analyzes them manually. So the answer is both.
but that you can right-click a file and manually scan it and get an analysis,
Yes, Sirius also performs manual analysis and static analysis via the context menu in the file you want. Just enable Sirius LLM at the top right of your screen to activate it in the Windows context menu so you can manually scan the file you want to analyze.
or does snapshot also scan items on your desktop running or not??
Yes, it checks whether it is running or not.