Your going to have to download all the files you need on your brothers computer and copy them across to your own if you can't get internet access on it.
You want AdAwareSE, Spybot S&D, Ewido Security Suite, AVG Free and HJT to start.
You can find the links to all of these here Recommended FreewareAdAware manual update
- Go to http://www.lavasoftusa.com/
In the menu column on the left click on 'DOWNLOADS'.
On the Download page beside 'Updates' click the link under 'Latest Definition Files:'
Save the defs.zip
file to your PC. Unpack the zip file to find the defs.ref
file and put it on your desktop or in a folder which you can find easily.
On the PC you wish to update use Windows Explorer to navigate to the C:\Program Files\Lavasoft\Ad-Aware SE Personal folder.
Rename the defs.ref file there to defs.old, then copy the new defs.ref file into this folder.
Close Windows Explorer, start Ad-AwareSE and check the date of the definitions file. Ad-Aware should be up to date and ready to scan.Spybot S&D manual update
Go to http://www.safer-networking.org/en/index.html
In the menu column on the left under Home
click on 'Download'.
On the Download page beneath 'Download' click the link called 'Detection Updates <date>'
Save the spybotsd_includes.exe
file to your PC. Put it on your desktop or in a folder which you can find easily and then copy it to a floppy or USB Flash disk to transfer it to the PC to be updated.
On the PC to be updated copy spybotsd_includes.exe to a folder on the C: drive then double click it. It will find the installed version of Spybot S&D and automatically update it.Ewido manual update
Signatures from the last 2-3 days ~200KB download. Full signature database ~4.5MB download.AVG Manual Update
Priority updates - These are virus definition updates. 2 files listed *.bin format
Recommended updates - These are program bug fixes. 2 files listed *.bin format
Optional updates - low priority presentation changes.
How to update:
Copy the .bin file to a folder or your desktop. Start AVG Control Centre. Click Update, at the bottom of the dialog window are the buttons 'Internet' and 'Folder'. Click 'Folder', a directory tree will open asking you to point to the folder where you put the .bin file. Once you click the correct folder AVG will find it and update itself.
If you do not have the option to choose the update source because the 'do not ask this question again' box had been ticked, you can reset this in the Control Centre by clicking 'View'>'Components'>'Update Manager. In the Update Manager in the 'Properties' tab untick the 'Do not ask for the update source' box.
When everything is installed and updated restart the PC in Safe Mode and run all
the scans there.
This may be able to clean you up enough to get online and submit an HJT log in the normal manner.