Summary

On October 6th, 2005 there appeared another dropper for Sober.S worm. This dropper drops exactly the same Sober.S variant that started to spread early in the morning on October 6th. When the dropper is run, it shows a messagebox as a decoy:



The description of Sober.S worm can be found here:

http://www.f-secure.com/v-descs/sober_s.shtml

Additional Details

The new dropper for Sober.S worm is detected with the following F-Secure Anti-Virus updates:

Version=2005-10-06_06

Writeup: Alexey Podrezov; October 7th, 2005;