Malvertising, the use of online ads to spread malware, rose almost 19% from the firstto the second quarter of this year, including a 131% rise inphishing related advertising.

RiskIQ in the first in a series of Q2 wrap-up reports withdifferent threat themes Worldwide, malvertising continues to rise.In Q2 2017, RiskIQ scanned 18.65% more advertisements containing ablacklisted incident—phishing, scams, exploit kits, andmalware—than Q1, continuing a trend highlighted in our 2016 report,which found a 132% increase in total malvertising in 2016 over2015.

Malvertising has consistently risen since programmaticadvertising gained popularity, but what's interesting is how thetype of malvertising fluctuates quarter to quarter. According toRiskIQ detections, the total amount of malware in advertisementsdecreased by 42.73% from Q1, along with a 24.21% drop in exploitkits. In fact, exploit kits have been on the decline for the entireyear.