According to security software Avast, USB attack methods used up 1/8 computer attacks, and the goal is usually self-run function (AutoRun) in Windows.
Avast says it detects attacks by malicious code (malware) based on the Windows AutoRun feature grows stronger. Through Avast user community, the company reported 700,000 computers during the attack last week 10/2010. In that attack via USB devices accounted for 12.5% of attacks.
Avast says that "the key point of attack" by an attacker via USB device is the Windows AutoRun feature. AutoRun will now warn users when devices such as memory cards, USB storage pen attached to the computer. Microsoft warned this design to help users select the appropriate application to run the files on the USB device.
Jan Sirmer, the Avast virus analyst, said that AutoRun is a useful tool, however it is facilities spread over two thirds of current malware. Malware on infected USB device to multiple computers over the Stuxnet worm (infect only control large-scale technologies, such as SCADA systems in manufacturing companies and utilities).
Cybercriminals are making noise spread malware. When USB devices attached to the computer, turn on the AutoRun warning means shall also launch the file contains malware. Malware infects your computer, duplicating itself and penetrate into the core of the Windows operating system.
Avast offers some tips for users to avoid malware on USB devices:
- Remember that about 60% of malware spread via USB devices.
- Do not start the computer if the USB device is mounted on the computer. Because during Windows startup, will also launch and AutoRun malware will infect your computer before anti-malware program, installed on your computer, restart. In summary unplug USB devices before booting the computer.
- Open the self-scan mode upon access (on-access auto scan) on anti-malware programs.
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