We started to get reports about a new dropper for Sober.S worm at noon on October 6th, 2005. This dropper drops exactly the same Sober.S variant that started to spread early in the morning. When the dropper is run, it shows a messagebox as a decoy:
The description of Sober.S worm can be found here:
Disinfection & Removal
Allow F-Secure Anti-Virus to disinfect the relevant files.
For more general information on disinfection, please see Removal Instructions.
The dropper for Sober.S worm is detected with the following F-Secure Anti-Virus updates:
Description Created: Alexey Podrezov; October 6th, 2005