McAfee Labs Stinger is a portable antivirus tool that scans and removes malware from infected systems. It can detect and remove over 7,000 viruses and threats, including ransomware, rootkits, trojans, and worms. The software is updated regularly to ensure it can detect the latest threats, and it does not require installation, making it easy to use on-the-go. It also includes a quarantine feature to isolate and remove infected files.