Hackers are using ZIP file concatenation to bypass security solutions and infect their targets with malware through email messages.
ZIP file concatenation is a type of attack in which multiple ZIP files are merged into one to trick archiver programs and antivirus solutions.
Different archivers handle these files differently, allowing crooks to move past cybersecurity solutions and infect the target device.
Perception Point suggests that traditional detection tools often fail to unpack and fully parse such ZIP files and recommends their proprietary solution.