You are infected.
If you cannot download anything this may be a serious problem because most of our "fixes" require software you may need to download (unless you already have them).
What anti-virus program do you have running on your computer?
Run it in safe mode and see if it comes up with anything.
Next you need some anti-malware aps, in particular Adaware and Spybot Search and Destroy.
If you can download these, install them, update them and run them in safe mode. Let them fix what they find.
Ad-Aware SE Personal - freeware http://www.lavasoft.com/
Click on Adaware SE Personal in “Products” on the left side of the page
Or it may be easier to find it here:http://fileforum.betanews.com/detail/Adawa...nal/965718306/1
Spybot S&D: http://www.safer-networking.org/en/index.html
Be sure to enable “Teatimer” which gives you realtime protection against malware invasion. (absolutely necessary)
Then try downloading and installing the following:
Microsoft Windows Defender http://www.microsoft.com/athome/security/s...re/default.mspx
This also provides realtime protection. (absolutely necessary)
Microsoft Malicious Software Removal Tool (Win XP and Win 2000):http://www.microsoft.com/security/malwareremove/default.mspx
A˛ - Free from http://www.majorgeeks.com/download4281.html
. Run it, click Search for Updates, then click Scan.
Try using these web based scans using Internet Explorer (they require ActiveX and will not work with Mozilla based browsers)Web based online Antivirus and anti-malware scans:
(these can be run regardless of whatever else you are using. You must use Internet Explorer to run these as they require ActiveX to function.)
Kaspersky Anti-Virus Web Scannerhttp://www.kaspersky.com/service?chapter=161739400#betatest
Panda Activescan http://www.pandasoftware.com/activescan/co...n_principal.htm
Trend Micro antivirus and malware scan:http://housecall-beta.trendmicro.com/en/st...orp.asp?id=scan
Etrust Anti-virus web scannerhttp://www3.ca.com/securityadvisor/virusinfo/scan.aspx
online trojan scans here - http://scan.sygatetech.com/pretrojanscan.html
Windows Security Trojanscanhttp://windowsecurity.com/trojanscan
See instructions for it here:http://www.windowsecurity.com/trojanscan/trojanscan.asp
After running these hopefully you will be able to download Hijack This.
Read the pinned post in our “HijackThis” forum, herehttp://www.bleepingcomputer.com/forums/t/34773/preparation-guide-for-use-before-using-malware-removal-tools-and-requesting-help/ Carefully read and follow all directions explicitly.
Following instructions run a log, and post it in following HJT forum, at this link
. Include a brief description of your computer (ie, processor, amount of RAM, brand or motherboard, etc, and the problem you are experiencing.)http://www.bleepingcomputer.com/forums/posthjtlog.htmlDo not as yet attempt to fix anything by yourself using Hijack This as even what may seem to be a small mistake can render your op system inoperable.
Some files when in one folder may be fine while in another may be malware.
A member of our HJT Team will analyze your log, make recommendations and offer assistance.
It may take a period of time to get a response to the log you posted because the members of our HJT Team are kept very busy. Please
be patient as this team is manned by volunteers. They will help you in order received as soon as possible.NOTE
Once you have posted your HJT log, please DO NOT make any additional posts in the HJT forum thread you created until you get a response from a member of our HJT expert team, and do not make any changes to your system (changes, including any attempted repairs, will make it different than displayed in the log you posted and therefore make your log inaccurate).
The first criteria they have when looking for logs that need replies are posts showing 0 replies
. If you make an additional post, it will show as having 1 reply
A team member, looking for a new log to work on might well assume another HJT Team member is already assisting you and might not open the thread to respond.
So, make your post and wait for a response from a team member.