Iran 'Targeted by New Computer Virus'

The official says the Stars - the second virus, a land-attack network in eight months - is under investigation experts. Iran was the target of a new computer virus "cyber war", led by his enemies, according to senior military representatives of the Islamic Republic.

Gholam Reza Jalali, civil defense commander, told the semi-official Mehr news agency on Monday that a new virus called Stars, examined by experts. "Some properties of the stars of the virus have been identified, including that it is the [targeted] system," he said.

He said that Iranian experts are still investigating the full functionality of malware. Jalali downplayed the influence of the stars, but said it was "in harmony" with computer systems and "caused minor damage at an early stage and can be mistaken for a powerful file-profit organizations."

He did not say specifically which devices or systems, the virus, or when experts are first detected.

Stars is the second major computer worm, Iran in the last eight months hit. Iran was Stuxnet with another computer worm last year, designed ostensibly to Iran's controversial nuclear program claims made. The country has Stuxnet start the U.S. and Israel, which was identified in June publicly accused last year and reportedly mutated and at least 30,000 industrial computerization of infected people in the coming months.

Stuxnet existence was publicly known at this time Iran began loading fuel into the Bushehr nuclear reactor, its first, in August last year. Iran said in September that the personal computer in Bushehr was a hit, but the plant itself remained intact. Usher is not yet in operation, missed several start-up dates. This has triggered speculation that Stuxnet damage to plants. However, Iran has announced that its scientists have discovered, and neutralize malware before they could cause serious damage.

Definition of Acceess Point Antenna

Many people are asking questions, why is the access point there have antenna. But also there is the question asked, there is also access of pointy that do not have the antenna. The answer is simple because in concept access point that does not has a antenna though also has an antenna but antenna placed in the box sometimes access point instead of outside. The Access point that does not have the antenna is usually aimed at the beauty room, as rooms attractions and hotels.

The usefulness of the antenna is deliberately created by the vendor are as media receiver and data transmissions. Basically a network administartor must understand how the workings of an access point, starting from the preparation of the transmission of radio signals that are used to get process identification device access point with the client device such as a laptop, PDA, and so on. One of the properties of radio waves is Ricochet when the radio wave on hard objects that are around him, it is the same as with the flashlight in navigate to purmakaan glass, must be bounced.

Wireless adapter in the device the recipient client will radiate the radio wave in all directions generally, except should be replaced with specific sectoral antennas such as antenna, grid and so on. Radio waves will spread where mana, and consequently will occur, for example, there is Ricochet Ricochet waves directly to the access point, there is exposed lights, glass, wall walls before reaching the access point. Due to the bounce this is the Access point will get the same signal from different directions and in a different time. This event was called with Multipath.

Basically an antenna access point are half duplex, meaning that it can only send and receive at one time, and cannot send and receive at the same time. With the antenna, the quality of the acceptance and delivery will be better. Basically the access point is to have one, two, three and more antenna, the number of antenna is usually depends on how sensitive the device access point to use. With the existence of antenea in access point wireless network quality will increase dramatically as a whole.

source http://clearwireless.org