The Real Cracks in the Foundation of Ransomware
Summary
Case in point: In early June, Necurs, one of the world’s largest botnets (a network of infected computers often used to deliver spam and phishing e-mails), suddenly went offline. Exploit kits provide attackers with their second primary way of delivering ransomware and other malware payloads — taking advantage of software vulnerabilities to infect victims who visit malicious websites. It’s hard to keep a profitable idea down As this chart from researchers at F-Secure Labs indicates, following Angler’s rapid decline, criminals wasted little time hopping over to a competing exploit kit called Neutrino. Security administrators are stuck in a perpetual game of whack-a-mole, content with modest, temporary gains that evaporate as soon as criminals make the smallest of adjustments and new attacks spring up onto the scene. All campaigns have three common needs: 1) Attackers need to get access to the system; 2) they need to create a process with proper rights to open and encrypt data; 3) they need to present their demands to the victims.
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