Mobile Malware Takes Victims by Surprise

Malware writers behind Koler, a bad app that attacks Android devices, have upped their game with a new variant of the pernicious program. In its original version, Koler hijacked phones it landed on and wouldn't set them free until a ransom was paid. This latest strain of the malapp also does the ransomware thing, but it takes its malignancy a step further. "This version self-replicates," said Denis Maslennikov, a security analyst with AdaptiveMobile. "This is the first time we've seen self-replicating ransomware on Android."