MassAcre

MassAcre is a tool designed to exploit a zero-day vulnerability in the masscan banner scanning utility, causing it to enter an infinite loop and consume 100% CPU by sending a specially crafted TLS handshake record. Its primary use case is to demonstrate a remote, unauthenticated Denial of Service (DoS) attack that stalls the banner processing of masscan, leading to lost scan results. Notably, the attack is executed with a minimal payload and targets a specific flaw in masscan's certificate handling logic.