Virus writers take spring break
Only one new virus, Mytob.Z, made it into the top 10 list for April, according to antivirus data from Sophos.
Top of the list was Zafi.B, which accounted for nearly half of all viruses detected. This is the fifth month Zafi.B has topped the charts.
"Although Mytob.Z only accounts for a small percentage of the top 10 reports, it is the only new worm that has managed to break into the stronghold of old threats," said Carole Theriault, security consultant at Sophos.
"First sighted in mid-April, Mytob.Z is a nasty piece of work. Not only does it spread ferociously, but it plants a backdoor Trojan which can be used by remote hackers to gain access and control of a victim's computer.
