On April 12, 2018, Radware’s threat research group detected malicious activity via internal feeds of a group collecting user credentials and payment methods from Facebook users across the globe. The group manipulates victims via phishing emails to download a painting application called ‘Relieve Stress Paint.’ While benign in appearance, it runs a malware dubbed ‘Stresspaint’ in the background. Within a few days, the group had infected over 40,000 users, stealing tens of thousands Facebook user credentials/cookies. This rapid distribution and high infection rate indicates this malware was developed professionally. The group is specifically interested in users who own Facebook pages and that contain stored payment methods. We suspect that the group’s next target is Amazon as they have a dedicated section for it in the attack control panel. Radware will continue to analyze the campaign and monitor the group’s activity. Prior to publication of this alert, Radware has detected another variant of the malware and saw indication of this new version in the control panel.