I need some help.
Currently, i am studying IT and i have a lot of knowledge about computers, however, i went out of town, and my brother called me to check out his computer which pastes "Hello!" whatever he copies.
Came to his house to check, attempted to open Task Manger which was disabled, regedit the same, so i re-enabled those two via gpedit, saw a lot of malware processes running, and terminated them all.
The tricky part that is that i attempted to install Avast, AVG and Avira- and all installations have failed (assuming the malware is preventing installation?).
After that i attempted running Malwarebytes Chameleon which killed the malware and ran a scan, 275 malware showed up, mostly were PUP's, then Worms, and after Trojans.
Malwarebytes cleaned it all up and rebooted the computer, however, when the computer was rebooted, task manager was disabled again, couldn't install any antivirus, and paste still pastes "Hello!".
Has anyone encountered such malware before? I honestly recommending him re-installing his operating system (Windows XP), because this would be much of a hassle to remove.
Any help would be appreciated regarding this copy/paste thing and antivirus installation which is really grinding my gears.
EDIT: Forgot to mention that safe mode causes a BSOD for some reason? No idea what's up with that.
Edited by NikoCodey, 29 August 2016 - 09:17 AM.