Half (52 per cent) of new malware strains only stick around for 24 hours or less. The prevalence of short lived variants reflects a tactic by miscreants aimed at overloading security firms so that more damaging strains of malware remain undetected for longer, according to a study by Panda Security.
The security firm, based in Bilbao, Spain, detects an average of 37,000 new viruses, worms, Trojans and other security threats per day. Around an average of 19,240 spread and try to infect users for just 24 hours, after which they become inactive as they are replaced by other, new variants.
ITU Global Cybersecurity Agenda