While the seller specifies that HawkEye Reborn should only be used on systems with permission, they also explicitly forbid scanning of HawkEye Reborn executables using antivirus software, likely an attempt to minimize the likelihood that anti-malware solutions will detect HawkEye Reborn binaries.Following these changes, the new developer of HawkEye Reborn has continued to make changes and we expect this to continue as long as the developer can monetize their efforts.As with other malware that we wrote about last year, while the developer claims that the software should only be used on systems with permission, or "for educational purposes," malicious attackers have been continuously leveraging it against various targets around the world.Distribution campaignsFor several months during the last half of 2018 and continuing into 2019, Cisco Talos has observed ongoing malicious email campaigns that are being used to distribute versions of the HawkEye Reborn keylogger/stealer