In the second quarter of 2010 Trojans accounted for nearly 52 percent of malware, according to a new quarterly report from PandaLabs. Traditional viruses have their comeback since the start of 2010, now accounting for nearly 25 percent of all malware compared to 15 percent in Q1. PandaLabs says the increase is due in part to a small handful of hybrid viruses that are replicating themselves at high rates.