When I start Chrome Avast jumps up a states it has blocked Includer-AGO.
When I start Firefox Avast blocks gigirugu.com and chacku.com.
It looks as if Avast is stopping something malicious but it keeps coming back.
How do I get rid of these nasties completely.
Any help welcome.
Read this topic, and attach the logs
Malwarebytes did not find anything.
Logs attached.
Let me know if the alerts continue after this
Warning This fix is only relevant for this system and no other, using on another computer may cause problems
Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot
Run OTL
[*]Under the Custom Scans/Fixes box at the bottom, paste in the following
https://dl.dropbox.com/u/73555776/OTL_Fix.GIF
:Commands
[CREATERESTOREPOINT]
:OTL
DRV - File not found [Kernel | On_Demand | Stopped] -- C:\ComboFix\catchme.sys -- (catchme)
DRV - File not found [Kernel | On_Demand | Unknown] -- C:\DOCUME~1\John\LOCALS~1\Temp\aswMBR.sys -- (aswMBR)
DRV - File not found [Kernel | On_Demand | Stopped] -- -- (amovulyf)
IE - HKU\S-1-5-21-3664434425-4259905933-3280032357-1005\..\SearchScopes\{21421B6B-287E-4CB9-892A-D59B4FE0A720}: "URL" = http://search.conduit.com/ResultsExt.aspx?q={searchTerms}&SearchSource=4&ctid=CT3286379&CUI=UN67821802632239151&UM=2
IE - HKU\S-1-5-21-3664434425-4259905933-3280032357-1005\..\SearchScopes\{496350EA-DC25-401B-8FFD-D72D62BD76D6}: "URL" = http://websearch.ask.com/redirect?client=ie&tb=ORJ&o=100000027&src=crm&q={searchTerms}&locale=en_UK&apn_ptnrs=^U3&apn_dtid=^OSJ000^YY^GB&apn_uid=E91BDAE3-A05A-4E76-9FF2-9A3CF34DC23A&apn_sauid=C301A418-AE5E-4336-94D1-710202761FED
FF - prefs.js..extensions.enabledAddons: tXsGT9QxoKlmxUz0Kj%40mDvNgXhNdd92G6vn.com:11
[2013/01/19 13:21:28 | 000,003,702 | ---- | M] () (No name found) -- C:\Documents and Settings\John\Application Data\Mozilla\Firefox\Profiles\cenjydx6.default\extensions\tXsGT9QxoKlmxUz0Kj@mDvNgXhNdd92G6vn.com.xpi
O4 - HKU\.DEFAULT..\Run: [SearchProtect] C:\WINDOWS\system32\config\systemprofile\Application Data\SearchProtect\bin\cltmng.exe File not found
O4 - HKU\S-1-5-18..\Run: [SearchProtect] C:\WINDOWS\system32\config\systemprofile\Application Data\SearchProtect\bin\cltmng.exe File not found
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} http://java.sun.com/update/1.5.0/jinstall-1_5_0_06-windows-i586.cab (Reg Error: Value error.)
:Commands
[resethosts]
[emptytemp]
[Reboot]
[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.
THEN
Please download AdwCleaner by Xplode onto your desktop.
[*]Close all open programs and internet browsers.
[*]Double click on AdwCleaner.exe to run the tool.
[*]Click on Scan.
[*]After the scan is complete click on “Clean”
[*]Confirm each time with Ok.
[*]Your computer will be rebooted automatically. A text file will open after the restart.
[*]Please post the content of that logfile with your next answer.
[*]You can find the logfile at C:\AdwCleaner[S1].txt as well.
Brilliant essexboy - that has fixed it - all seems normal.
Log files attached.
Is there any way I can make a donation by way of thanks?
Grand, if all is still well tomorrow let me know and I will tidy up 
All still well. (All Windows updates completed). No recurrance of Avast pop-up with Firefox or Chrome.
Very many thanks for your prompt and effective help.
In that case methinks I will send you on your merry way
Subject to no further problems
I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems
Now the best part of the day ----- Your log now appears clean 
A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:
Run OTL
[*]Under the Custom Scans/Fixes box at the bottom, paste in the following
https://dl.dropbox.com/u/73555776/OTL_Fix.GIF
:Commands
[CLEARALLRESTOREPOINTS]
[resethosts]
[emptytemp]
[Reboot]
[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
Run OTL and hit the cleanup button. It will remove all the programmes we have used plus itself.
: Keep Java Updated :
WARNING: Java is the #1 exploited program at this time. The Department of Homeland Security recommends that computer users disable Java
See this article and this article.
I would recommend that you completely uninstall Java unless you need it to run an important software.
In that instance I would recommend that you disable Java in your browsers until you need it for that software and then enable it. (See How to diasble Java in your web browser and How to unplug Java from the browser)
Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:
CryptoPrevent install this programme to lock down and prevent crypto ransome ware
https://dl.dropboxusercontent.com/u/73555776/CryptoPrevent.JPG
Update and run weekly to keep your system clean
Download and install FileHippo update checker and run it monthly it will show you which programmes on your system need updating and give a download link
If you use on-line banking then as an added layer of protection install Trusteer Rapport
It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit
[*]Microsoft Windows Update
To learn more about how to protect yourself while on the internet read our little guide How did I get infected in the first place ?Keep safe 
Now is a good time to create a image of the working/clean system.