The Sober-O and Sober-P worms have emerged, posing as pictures of old schoolfriends. The worms can travel in both English and German language emails, just like with earlier versions of Sober. Anyone stupid enough to open the infected attachments will find their machines turned into zombie drones under the control of hackers.

When translated, the German version of the infected email messages contains text referring to a class reunion. English language versions of both worms refer to password changes. The malware sends German versions to email addresses associated with German (.de) and Austrian domains. English language versions go to everyone else.