Nuclear Pack exploit kit introduces anti-honeyclient crawling feature

For years, the security community has been developing efficient ways to evaluate the maliciousness of as many web sites as possible, by crawling them for malicious content in an automated fashion. Thanks to the  rise of botnets as an exploitation platform, today’s cybercriminals are largely relying on compromised legitimate infrastructure as a delivery vehicle for their malicious content, compared to using purely malicious sites as an infection/propagation vector. 

Naturally, cybercriminals keep track of the latest anti-malware security research, and constantly adapt to the latest innovations by introducing new features within the most widely used web malware exploitation kits. According to security researchers from ESET, while profiling yet another malware and exploits serving malicious campaign, they have stumbled upon a new feature introduced in the Nuclear Pack web malware exploitation kit.