Suggested security upgrade did not install and left me with Trojan horses. Was it a spoof?
Yesterday evening (Oct. 4 2010) a pop up displaying the Firefox logo suggested a security upgrade for users of 3.6. It did not appear to install properly. There was also a box that suggested an associated update for (I think) Adobe, but there was no associated button. I shut down soon after. This morning, Oct.5, my computer brought up and I.E. window and an AVG threat message suggesting that it would forcibly remove a Trojan horse, but that it could cause a system lock. I did and it reported successful removal. My AVG scan is still running but it is reporting 7 Trojan horses and counting. KZUKEA (2868), Generic19.AKRT, VUNDA.LP,
Alla svar (1)
It sounds like one of the rogue sites. They tell you that you are running an older version of Firefox and that Adobe Flash is out of date. They tell you to download a file called something like firefox-update.exe or ff-update.exe
That file contains a trojan.