Several botnets operate in Ukraine.

Kaspersky Lab has summarized the activity of spammers in Ukraine in the fall of 2011. The analysis revealed that a large group of botnets has been deployed in our country, distributing spam worldwide.

In the third quarter, a noticeable synchronicity was observed in the distribution of "postal junk" from Ukraine, Indonesia, Peru, and Thailand.

The study's results showed that outgoing spam flows were distributed fairly evenly across the world, with Ukraine falling to 18th place in the spam distribution rankings, and malicious attachments contained in 3.5% of emails.

The share of spam in email traffic in the fall of 2011 decreased slightly, reaching 79.2%. It's worth noting that outgoing spam flows were distributed evenly across the world that fall. As recently as September, almost 50% of all spam originated from countries in our top five rankings. However, in October and November, the share of the top five countries dropped significantly, reaching just under 40% by the end of the fall.

The top four countries in the ranking remained stable throughout the fall, only occasionally changing places: India (12.5%), South Korea (8.2%), Brazil (7.7%), and Indonesia (7.3%).

Russia ranked 15th in the September–November rankings, distributing 1.8% of spam. Ukraine, meanwhile, ranked 18th with 1.6%. Among the post-Soviet countries, in addition to Russia and Ukraine, Kazakhstan also entered the top 20, securing the last spot (1.4%).

Of the Eastern European countries in the top 20, 3.9% of all spam originated from its territory. Romania (1.7%) and Bulgaria (1.4%) also ranked lower, ranking 16th and 19th, respectively.