Toshiba Portégé R705 Laptop
Windows 7 Home Premium, Service Pack 1, 64-bit
Intel Core i3 processor, M 370 @ 2.40 Ghz 2.40 Ghz
4 GB installed memory (3.73 GB usable)
User received a message from xFinity that his laptop may be infected with a bot.
User’s laptop could not download files from either Google Chrome (latest version) or Internet Explorer Version 11. Laptop was using Microsoft Essentials for virus protection.
Programs that required updates through the internet functioned properly.
Laptop was running slow so I ran CCleaner setup from my flash card. I deleted files and cleaned the registry.
Deleted the following programs: Ask Toolbar, and Juniper, and Skype
Unable to delete Billing Edge, Quicken WillMaker 2008, Sigma Flow, One-Click Skype and Kaspersky Pure 2.0. (All gave uninstall errors.)
Ran ComboFix, TDSS Killer, JunkwareRemoval Tool, Malware Bytes, and Rogue Killer. Still had the same problem, no change.
I removed Microsoft Essentials and installed AVG Internet 2015.
I restored the computer to a 1/25/2015 date. Interestingly the next available restore point after that was from 2013.
Ran the same sequence of virus removal tools. Used CCleaner to cleanup the registry and did a Restart. No change.
I installed and ran SpyHunter but it only found to adware programs which track internet activity.
Based on the log files I assumed I was dealing with one of the Mindspark [PUP] viruses, so I also ran ADW Cleaner and Hitman-Pro 64 bit. Neither of these two programs found any viruses.
I am moderately capable of PC troubleshooting personal computers. Since my last job was at a church, I haven’t taken any Microsoft classes since Windows NT server.
I did edit the registry several times. I removed Kaspersky 2.0, One Click Skype and SonicFlow references. Each time I was careful to back up the registry before-hand and afterward ran a CCleaner registry sweep and either a Restart or Shutdown afterword.
Somewhere in the middle of all this I deleted and re-installed Google Chrome but did not go through the registry to eliminate Google Chrome references. I’ve done nothing with Internet Explorer because the last time I tried to delete and reinstall IE I booted to a black monitor and had to repair the problem.
I installed Mozilla Firefox from a flash drive and I am able to download files but was unable to run the application. Message: These files can’t be opened Your Internet security settings prevented one or more files from being opened.
I removed AVG and re-activited Windows Defender.
Still can’t install exe files, and I followed instructions to change Defender’s security but these didn’t work.
I probably did some things that I have listed, but I am out of ideas. So my question is “Can anyone help?”.