An anonymous reader writes: Shifu is a banking trojan that's currently attacking 14 Japanese banks. Once it has infected a victim's machine, it will install a special module that keeps other banking-related trojans at bay. If this module sees suspicious, malware-looking content (unsigned executables) from unsecure HTTP connections, it tries to stop them. If it fails, it renames them to "infected.exx" and sends them to its C&C server. If the file is designed to autorun, Shifu will spoof an operating system "Out of memory" message.