CryptoWall infection does not halt click-fraud activity
Threats considered a non-priority by security experts can quickly transform into a serious reason of concern, as they can represent the starting point of a more elaborate cybercriminal assault, researchers have found.
This tactic was observed when click-fraud malware, considered a low-level threat, escalated to a ransomware risk with CryptoWall file encrypting tool.
Rerdom Trojan delivered to victim's computer
Security researchers at Damballa noticed the chain of events while investigating on a customer’s network an incident caused by a threat actor they call RuthlessTreeMafia, who initially ran an operation to defraud “pay-per-click” advertisers.