I know I managed to get something on my network, but I don't know where, nor do I know where from.
I used to run a FTP and a Webserver on one of my machines, but getting this issue and also not needing either anymore I've uninstalled, but I'm thinking someone has managed to find a loop-hole, or similar and got in.
I've ran Virus Scans and Malware scans on all machines and I think I've cleaned what I can see, but I think I've got something underlying, as my data-allowance is still going up quicker than it should. At first I looked at blaming my ISP, then I looked at blaming my son with netflix, but with changing the modem and him not being at home for 48 hours and still it was increasing, I'm thinking there is something left behind.
I have turned to here, I've heard of various tools that get used, like Hijack this, Combofix, etc
I've tried Hijackthis and ran the results through http://www.hijackthis.de/ and the results on the two machines I believe to be the culprits don't show me anything I think I should worry about.
The two machines I am concerns right now about are my Windows Server 2003 and Windows Server 2008 boxes
But, that being said, I am still opening my arms to help and assistance, as I want to be 100% i'm clean, etc. When I've looked at the two machines I think are the main problem, I'll move onto the other machines I have in the home.
Can anybody help me? Were do I start?