Sophos Central Endpoint and SEC: Computers fail/hang on boot after the Microsoft Windows April 9, 2019 update. Please follow knowledge base article 133945
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Earlier today one of my family's computers was hit with the "Malware Defense" Trojan, one of the things that pretends to be a legit AV program but isn't (like AntiVirus 2009). I followed the steps on Bleeping Computer, using Malware-Bytes and the workarounds with .exe renaming. The malware itself now seems to be gone but ghe main problem is all my web browsers crash within 30-60 seconds of opening them (FF, IE, Opera) and downloading Chrome causes the downloader to crash. Also, even when I do not have IE open, I will get an "Internet Explorer has encountered a problem and needs to close." box about every 5 minutes. I have IE8 on this computer along with WIndows XP SP3 and AVG Anti-Virus.I reinstalled Firefox and IE8, but to no avail. Before running MalwareBytes, "Malware Defense" had set up a redirect to make all addresses go to spam sites. Now I can go to any site but it inevitably crashes in a minutAny advice on these kinds of aftereffects? I'd appreciate some help or advice.
I did not find the right solution from the internet.
References:arstechnica.com/.../viewtopic.phpSmart Gadget Video
Windows XP SP3 is only going to cause more security problems in the future even if we resolve this using a combination of our tools. We heavily advise you to upgrade to Windows 10.
I would advise SBAV - https://community.sophos.com/kb/en-us/52011 and then run an Advanced Scan with Delete Viruses Option as per https://community.sophos.com/kb/en-us/52053
When the computer boots up after running the scan, I'd say Sign Up for a Trial of Sophos Clean - https://www.sophos.com/en-us/products/sophos-clean.aspx and Run a Full Scan once more.
Let me know how you proceed.