AhnLab periodically releases specialized removal tools intended for rescue scenarios. While not a full "Internet Security Suite" (which includes firewalls and phishing protection), these tools can be run from a USB drive to scan and clean major infections.
is available for download, though it still requires a full installation. Wilders Security Forums Official Portable Alternative AhnLab Xcanner: This is AhnLab's official Portable Anti-Virus ahnlab v3 internet security 90 download portable