Hi essexboy,
Here you can read why you did install:
http://blog.threatexpert.com/2008/10/gimmiva-exploits-zero-day-vulnerability.htmlThe Gimmiv.A worm * has already infected thousands of computers, and there is more to come, it started just after the patch was being released,
polonus
*
Gimmiv.A allows remote code execution, which makes it potentially "wormable". Considering that the vector of attack is RPC DCOM and the code is similar to typical RPC DCOM network-aware worms, which is used against other hosts in the network, Gimmiv.A is determined in this post as a worm. However, it could technically be classified as a network-aware trojan that employs functionality of a typical RPC DCOM network-aware worm to attack other hosts in the network.