What happened to my sister's laptop?

[Kevso]

Thanks for the help guy's.I will try malware bytes.

[Ad Bot]

[ultimamax]

disconnect the webcam/microphone so she doesn't accidentally give them a striptease

[Kevso]

Started in safe mode, and now scanning with malwarebytes....

disconnect the webcam/microphone so she doesn't accidentally give them a striptease

Built-in laptop webcam.

[Wheatley]

Built-in laptop webcam.

Post-it note

[brickybob]

Ransomware.  Safe-mode and malwarebytes.

Or DBAN if you are feeling extreme.

[Eeposs]

[K9 Kid]

•Д•

[AgentPikmin]

recent versions can also purportedly show footage from a computer's webcam to give the illusion that the user is also being recorded by law enforcement

Don't panic. Just try to use safe mode and run a recovery.

[Kevso]

It detected something!

Edit:I deleted the infected file, I hope it works.

Didn't work :(

[Ipquarx]

The FBI cannot lock down an operating system, you'd have to be seriously gullible and clueless with computers to fall for that.

[Kevso]

I deleted the file, then rebooted.After that, the desktop came up, and everything was fine, but then It came up again.

What do now?

[Axolotl2]

The FBI cannot lock down an operating system, you'd have to be seriously gullible and clueless with computers to fall for that.

I might be very, very gullible, but there was this one story about a professor who got arrested by the FBI for clicking on an IP track trap (a page that logs the IP of users, usually the link to it is disguised as a child research site).

I only believe this story with the tiniest grain of sand.

[KoopaScooper]

I deleted the file, then rebooted.After that, the desktop came up, and everything was fine, but then It came up again.

What do now?

Go back into Safe Mode, uninstall her previous anti-virus, and install avast! free antivirus