- Greediest Trojan targeting banks
Trojan-Spy.Win32.Banker.mrj comes out as the greediest banking Trojan in May, targeting the clients of 103 banks simulataneously.
- Greediest Trojan targeting payment systems
Although Trojan-PSW.Win32.Staem only targets a relatively modest three payment systems, it still comes out top in this category.
- Greediest malicious program targeting payment cards
This month, one of the new modifications of Trojan-Spy.Win32.Banker.tq takes the prize, targeting five payment card systems at once – no mean feat for malware in this category!
- Stealthiest malicious program
May’s stealthiest piece of malware is from an old family: the winning modification of Backdoor.Win32.Hupigon.bxbu is packed nine times over.
- Smallest malicious program
Trojan.Bat.KillWin.dg, in spite of being a minimal 15 bytes in size, is still able to destroy Windows on the user’s disk.
- Largest malicious program
Although this month’s winner, Trojan-Spy.Win32.Banker.fgw is a chunky 30MB in size, that’s by no means a record for this category.
- Most malicious program
A modification of Backdoor.Win32.Agobot.pgj wins the prize for maliciousness in May, as it combats antivirus solutions by deleting security software from victim machine.
- Most common malicious program in email traffic
For the nth time, we’ve got Email-Worm.Win32.Netsky.q leading this cateogory, as it made up 23.12% of all malicious mail traffic in May.
- Most common Trojan family
There’s another old-timer here: 3301 new variants of the Backdoor.Win32.Hupigon family appeared in May.
- Most common virus/ worm family
This category shows more variation than the preceding two: Net-Worm.Win32.Kolab.c, in 276 modifications, is a new winner of this nomination.