00:00Have you ever stopped and wondered, the manga app you're using everyday, could it secretly
00:04contain a virus?
00:06Kotatsu is one of the most popular manga rear apps among Kanini and manga fans.
00:12But unlike most apps, it's not available on Google Play.
00:15And that raises a question many people have asked, is Kotatsu actually safe?
00:20So today, instead of trusting random comments online, we're going to investigate it ourselves.
00:26Now, before we talk about viruses, let's clear up one common myth.
00:31A lot of people think, if my antivirus says the app is safe, then it's 100% safe.
00:37But that's not always true.
00:39Security software is very useful, but no scanner can guarantee perfect detection.
00:44New threats can sometimes go unnoticed, and different security engines may reach different
00:49conclusions.
00:50That's why security researchers often use multiple checks instead of relying on a single
00:55antivirus.
00:56So I downloaded the APK, and started with the first step.
00:59Is this even a real Android APK?
01:02After examining the file structure, it appears to be a legitimate Android application package.
01:08The APK contains the normal Android components you would expect, including application files,
01:14libraries, resources, and executable code.
01:18So at least we know we're looking at a real Android app and not fake file pretending to be
01:22one.
01:23But being a real APK doesn't automatically answer the safety question.
01:27The next step is where things get interesting.
01:30Instead of checking the file with only one antivirus, we're going to use VirusTotal, a platform
01:35that scans files using many different security engines.
01:39If there is anything suspicious, this should give us a much clearer picture.
01:43So let's upload the APK and see what the results reveal.
01:58Alright, the scan is complete.
02:00And honestly, the result was probably not what some people expected.
02:05After uploading the APK to VirusTotal, the platform reported that none of the security
02:10vendors detected known malware in the file.
02:13In other words, the APK did not trigger any malware warnings during the scan.
02:18But I wanted to be extra careful.
02:20So instead of stopping there, I decided to perform a second check.
02:24VirusTotal has another feature that allows you to analyze URLs directly.
02:29So I copied the official GitHub download link for the APK and submitted it for analysis
02:34as well.
02:35A few moments later, the results appeared.
02:37And once again, no security vendors flagged the download URL as malicious.
02:43At the time of testing, VirusTotal showed a clean result for both the APK file and the
02:48official GitHub release link.
02:50Now, before anyone rushes to the comments saying, so Kotatsu is 100% safe?
02:56Not exactly.
02:57That's not how cybersecurity works.
02:59A clean VirusTotal result is a very positive sign.
03:03But no security tool on Earth can guarantee that any application is permanently risk-free.
03:08What VirusTotal can tell us is whether dozens of security engines found known malware indicators
03:14during the scan.
03:15And in this investigation, they didn't.
03:18So based on the evidence available in this test, I found no indication of known malware
03:23in the APK version that was analyzed.
03:26Of course, users should always be cautious when installing apps from outside official app
03:31stores and should only download files from trusted sources.
03:35But if your question was, did VirusTotal detect a virus in the Kotatsu APK that was tested today?
03:42The answer is no, at least based on the results of this investigation.
03:47What do you think about these results?
03:49Would you trust VirusTotal's verdict or do you think additional testing is needed?
03:53Let me know in the comments.
03:55And if you'd like to see more anime app investigations, manga tools and anime tech content, don't forget
04:03to subscribe.
04:04Thanks for watching and I'll see you in the next video.
