Hello, I'm one of the authors of the program you are discussing.
I saw some interesting questions and thought I'd reply. I hope this will not be considered spam/advertising by the moderating team (if that's the case, nuke the post and accept my apology).
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bob3160: normally, a flash drive is a storage media and if used that way, false detections should not occur, but there's a number of legit programs (example: Lupo Pen Suite and similar, bootable drives, memory cards used in some devices) that use either different autorun methods or exhibit certain behavior that can often be seen on infected drives.
To prevent these FPs, MCS has a whitelist containing hashes of a number of known legitimate files that need to be protected from detection. Unfortunately, I'm the only one that maintains this database and I definitely have no way of knowing about every possible program that would need to be protected from detections.
Obviously, false positives must happen from time to time and they are fixed when users report them to me.
So, if you show me the logfile of that scan, the files are going to be whitelisted and the detections will not reoccur (I need the log because it contains the MD5s of the files).
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Tech: the program renames or moves to quarantine, it
never changes the contents of the files. So, you can't really loose a file (or it's contents) that was detected, it's always there, either in the original location (renamed) or in the quarantine folder.
As far as the name goes, beginning from version 2 the program's official name is: "MCShield ::Anti-Malware Tool::" (it was only MCShield before). The name was changed so that a certain AV vendor wouldn't get mad at us.
Of course, my intention was never to confuse people and make them believe that MCS has something with McAfee and MC stands for MyCity (my home forum).
The quarantine and occasional detections that AVs make in there... Yes, I agree that this is not perfect and the other programmer and I discussed the encryption many times, but we never got to making it. You know, real life, jobs and stuff like that. Hopefully, we'll get to it one day.
Is the quarantine safe? Well, malware in that folder can't start by itself. So, unless you go there and start clicking on files you know to be malicious, you won't have any problems.