i got badly infected with trojan horses yesterday (15 all together!!)
i got rid of them all by installing and running avg and i also ran a2. both say my system is now clear.
as a 3rd option i ran trendmicro`s online scanner but at the same point in its scan each time i get an avg pop up saying there is a trojan dialler in a particular file and it tells me to run avg but avg isn`t finding it.
if i go to the location theres nothing there. i`ve changed the folder settings to show hidden folders but no joy. i also switched off system restore but its still doing the same thing.
Delete your AVG6 free edition and download the 30 day trial of AVG 7, update it and do a full scan. This sorted trojan problems for me this week. You can then delete the trial version (or buy it as I intend to) and reinstall the free version.
Dunno nhojnhoj35 all I know is that it kept reappearing after deleting with AVG6 (including turning off system restore) but AVG 7 seemed to find it in more locations and it hasn't come back since (touch wood)
AVG, A2, Adaware and Spybot all say my system is clear but if I switch AVG off and run Trendmicro it has now detected a further 5 trojan horses. 3 of these are TROJAN AGENT.G which are described as high risk and there are two more that are described as low to medium risk - linked to spyware (although adaware and spybot are not finding them! They are tagged as uncleanable and I am given the option to delete the entire folder (not sure if I should do this!)
@ fruitbat - the previous trojan detected by AVG whilst running Trendmicro was located in the following location.... documentsandsettings\myprofile\localsettings\temp\V48S3Da02232. There is no mention of a cache file. Does that mean something to you?