Hi everyone! I ran into a weird issue today while gaming on Steam. The game froze and crashed, and when I checked the task manager, Steam had crashed too. After reopening the game, I played without any problems, but upon closing it, Steam crashed again. To make matters worse, Windows Defender flagged and removed a supposed threat a total of four times during the crashes. The detections were for behavior types Win32/GenRansom.A!cl and Win32/BMCIBlock.C!cl, both targeting C:Steamsteam.exe. I confirmed that the Steam executable is in the right place and carries Valve's digital signature. I suspect it might be a false positive, especially since I've been making a lot of file changes due to these crashes, which could have triggered Defender's alarms. Also, I haven't downloaded anything sketchy recently—just GPU-Z, MSI Afterburner, and FanControl from reputable sources. I've never faced this kind of detection before, despite experiencing crashes in the past. Should I be concerned, or is it likely a false alarm?
3 Answers
Yeah, it seems like a false positive based on what you’ve described. The fact that you haven’t experienced issues like this before suggests it might just be Defender being overzealous. Keep an eye on your system–if you see any strange behavior, definitely do more scans. Otherwise, you should be fine!
It sounds like you might be experiencing a false positive. A lot of legitimate applications can sometimes trigger false alarms, especially if they modify files or behave unexpectedly. You could take the suspicious files and run them through Virus Total to see if other antivirus programs flag them too.
If you're worried about malware, it's a good idea to do a full system scan with something like Malwarebytes Free. It can catch things that Windows Defender might miss. Since you mentioned you did a full scan already and found nothing, it might just be a quirk with the way Defender is interpreting those errors. Always better safe than sorry, though!
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