List of common things viruses screw with

[RegEdit]

What are some of the most common things that viruses attack? What functionality do you check on when making sure that a machine is fixed?

- broken file associations
- start button, start menu, task bar gone
- add/remove programs will not populate

[Squeak]

-Home page
-Internet browser settings (mostly IE)
-Task manager
-Network settings (IPv4, UDP, file sharing settings)
-Network shares
-Antivirus programs
-Media player
-Messenger programs
-OS startup
-Regerstering IE .dll files
-Various missing Dll or system files
-Various services not starting when they should
-Remote access disabled (get alot of this at work, makes accessing a computer on the other side of the campus annoying)
-DNS cache poisoning or having your DNS server completely changed (could fall under Network settings I suppose but meh).

edited here

-Flash player disabled/not working
-Java disabled/not working

All I can think of off the top of my head.

[vdub12]

I had one today redirect internet traffic with a proxy setting in IE that shot it back through local host. made internet not work once virus was removed. Easy fix though.

[RegEdit]

I had one today redirect internet traffic with a proxy setting in IE that shot it back through local host. made internet not work once virus was removed. Easy fix though.

What was the fix for that?

[vdub12]

Originally Posted by RegEdit

What was the fix for that?

Internet settings, connections, disable proxy and re-enable automatic settings. All it did was set a proxy that directed traffic to 127.0.0.1:5555

[Techs on Deck]

Hosts file
Regedit
IE Trusted Zone
Firewall settings/exceptions

[iisjman07]

Can't see wallpaper restrictions anywhere...

[RegEdit]

Can't see wallpaper restrictions anywhere...

And what is the fix?

Perhaps registry changes as described here...
http://www.askvg.com/how-to-prevent-...er-in-windows/

[vdub12]

This is another reason why I like to infect VM's so I can play with strange post infection problems and get the computer running correctly again.

Sometimes I will infect a VM fix it infect it with something else. After doing this a few ties other problems will show up that would not normally. I don't always start with a clean snapshot.

[Vicenarian]

Ok, so far we have:

-Home page
-Internet browser settings (mostly IE) e.g. proxy, etc. etc. Check everything.
-Task manager
-Network settings (IPv4, UDP, file sharing settings)
-Network shares
-Antivirus programs
-Media player
-Messenger programs
-OS startup
-Regerstering IE .dll files (check with Winpatrol, and for BHO, etc. other misc. stuff)
-Various missing Dll or system files
-Various services not starting when they should
-Remote access disabled (get alot of this at work, makes accessing a computer on the other side of the

campus annoying)
-DNS cache poisoning or having your DNS server completely changed (could fall under Network settings I

suppose but meh). (Reset LMHOSTS)?
-Flash player disabled/not working
-Java disabled/not working
- Hosts file
- Regedit
- IE Trusted Zone
- Firewall settings/exceptions



Can anybody add any others?