A rogue Web browser that was removed from the Internet after security researchers found it was serving up child porn advertising has suddenly reappeared, with a peculiar twist. The YapBrowser, also known as YapSearch or YapCash, now comes with an odd claim that users can expect protection from harmful exploits and viruses....YapBrowser, which carries a not-safe-for-surfing red "X" warning from McAfee's site adviser rating service, has also been linked to Web-based exploits, page hijacks and keystroke loggers...