Rosehip, in Slavic countries there might be some peculiar negative sentiment towards the Jews, but not because of their particular religious beliefs; more because during the first 17-18 years after the Bolshevik revolt of 1917, Jews (secular Jews, not religious followers of Judaism) dominated the government and the secret police (VChK, GPU, NKVD). Several "People's Comissariats" (Ministries or Secretariats, parts of the executive branch of government) consisted of ethnic Jews by 80-90% or so. Ethnic Jews almost always were commanders of armed detachments that raided the countryside, robbing peasants of all their food. The much feared sadist Henrich Yagoda (a.k.a Hershl Jehuda), the chief of the secret police in 1930-1936, was a Jew, and so was Lazar Kaganovich, Stalin's right hand who is largely blamed for the Holodomor of 1932-33 in Ukraine.
Generally, the notion that to be a Jew means to confess certain religious beliefs, is practically nonexistent in that part of the world. To be a Jew means to have a certain ethnicity.