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Windows 7: Clicked Link - Computer Frozen - Siren Going Off - What Happened?

02 Apr 2018   #1
woodbine

Windows 7 Home Premium 64 bit SP1
 
 
Clicked Link - Computer Frozen - Siren Going Off - What Happened?

Just had a strange experience. I was on a reputable, established forum. Clicked a link on someone's post. As soon as the new window opened up, everything went haywire. Beeping alarm noise, voice telling me that my computer had been infected (I think that was the term?) and saying that my credit card details and personal information was being sent to others, everything frozen - unable to close windows individually or shut off IE by clicking 'X' top right of screen, and also a voice urging me to phone a number so they can walk me through what to do. If I don't, my pc would be locked. Also pop ups on screen asking for user name and password and ones telling me IE had stopped working.

Can I ask what that was all about? All I could do was turn off my desktop pc on the main power switch and restart. Avast smart scan found nothing. All seems to be working ok now. Is there anything else I should do? Was I right to just turn the power off?

Many thanks to anyone who can advise.


My System SpecsSystem Spec
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02 Apr 2018   #2
Paul Black

7 HP SP1 64-bit Vista HB SP2 32-bit Linux Mint 18.3
 
 

Hi woodbine,

I usually have Windows Task Manager open as a matter of course.
That way you can just end the task through applications.
It sounds like Ransomware.
You could try running MalwareBytes to see if there is any cause for concern.

I hope this helps!
My System SpecsSystem Spec
02 Apr 2018   #3
sml156

Microsoft Windows 7 Ultimate 32-bit 7601
 
 

Another way to get out of sites like like that are to press the Alt + F4 keys, This will kill most (if not all) application's that have focus.
My System SpecsSystem Spec
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02 Apr 2018   #4
woodbine

Windows 7 Home Premium 64 bit SP1
 
 

Thanks to both of you for your advice and help. I'm not sure what task manager is. I have Super Anti Spyware on my PC. Will a scan with this do just as well as Malwarebytes. Will scan anyway with it.

Will also remember the alt + F4 trick. Just surprised that something like that can take over and jam my pc, especially with Avast security.
My System SpecsSystem Spec
02 Apr 2018   #5
mrjimphelps

Linux Mint 18.2 xfce 64-bit (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
 
 

It sounds to me like you killed it before it grabbed your computer.
My System SpecsSystem Spec
02 Apr 2018   #6
Paul Black

7 HP SP1 64-bit Vista HB SP2 32-bit Linux Mint 18.3
 
 

Hi woodbine,

Quote   Quote: Originally Posted by woodbine View Post
I'm not sure what task manager is.
Pressing the Ctrl-Alt-Del key combination will open Task Manager and then click the Applications tab.

Quote   Quote: Originally Posted by woodbine View Post
I have Super Anti Spyware on my PC. Will a scan with this do just as well as Malwarebytes. Will scan anyway with it.
That should hopefully find anything wrong.

I hope this helps!
My System SpecsSystem Spec
05 Apr 2018   #7
woodbine

Windows 7 Home Premium 64 bit SP1
 
 

All seems to be well. Super Anti Spyware found nothing, but I restored my pc to the day before the strange event just in case. Everything works fine.

Thanks again and I will use Task Manager, as Paul has suggested.
My System SpecsSystem Spec
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 Clicked Link - Computer Frozen - Siren Going Off - What Happened?




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