Trojan-Spy.Win32.Banker.mrj comes out as the greediest banking Trojan in May. Trojan-PSW.Staem only targets a relatively modest three payment systems, but it still comes out top in this category. Email-Worm.Netsky.q made up 23.12% of all malicious mail traffic in May, the most common virus/ worm family. Trojons-Win3232.Kolab.c, in 276 modifications, is the stealthiest piece of malware from an old family.”]
Source: https://securelist.com/malware-miscellany-may-2008/30427/