Be careful not to make your computer A "digging" tool for others.

June 2011, a hacker with a mouse lightly, 25000 of the network credit money into his own account, which is equivalent to 500,000 U.S. dollars. The entire deal is untraceable, although the owner of the network credit currency has posted the theft online, but it does not change the fact that the money did disappear, and the hacker became the first thief in the online credit currency.

This kind of network credit currency is bitcoin (Bitcoin), which is a kind of anonymous digital currency based on point-to-point network, which is produced by computer according to the distributed arithmetic of the public algorithm. One way to get Bitcoin is to download the appropriate tool software, run it in a computer, and compute it using the computer's CPU and GPU.

There are two of them, especially in the case where the first criminals are still at large, and more and more hackers are starting to "pay attention" to Bitcoin.

(Data map)

The manufacture of Bitcoin (commonly known as "digging") consumes a lot of computer computing power. Therefore, a use of other computers CPU and GPU resources to obtain bitcoin on the Trojan appeared. The Trojan is usually a self-extracting file, disguised as other files, deceiving users to run. Open with WinRAR (pictured), you can see the following information. where "setup=hstart/noconsole x.bat" means executing the x.bat batch file in a hidden console window.

After winrar the file, you can get three files (the file name may change): X11811.exe is a bitcoin calculation program;

X.bat is a batch file containing information such as the parameters of the start-up of the Bitcoin calculation program;

Hstart.exe is used to start the command line in a hidden console window, so that the program runs in the background, and the file has the correct digital signature.

The Trojan is activated, will secretly run Bitcoin in the background of the calculation program, consuming CPU and GPU resources, for others to obtain Bitcoin, impact system can.

At present, AVG Antivirus 2012 free Chinese version of its detection as Bitcoinminer, has been able to effectively curb the Trojan. Avg Antivirus from the Czech Republic, version 2012 is a new version of the September just listed, the size of its software is reduced by half, disk space occupancy rate decreased by 45%, process and memory utilization decreased by 20%, loading speed has also been significantly improved, more valuable is its global cloud sharing a powerful virus library, The user can keep the latest virus out of the door as long as it is automatically updated.

For more security information, please login to www.avg.com.

Appendix-Bitcoin Brief:

Bitcoin is a network of virtual currency, similar to Tencent's Q currency, you can use Bitcoin to buy some virtual items, such as online games in the clothes, hats, equipment and so on, as long as someone accepted, you can also use Bitcoin purchase real life items. Unlike Q-coins, the issue, circulation and administration of Bitcoin is not a person, organization, company, or country, or in other words: it is an equal part of everyone involved. Everyone has a computer that can access the Internet, then by running a free open source software can participate in it, all the participants do not exist in the so-called Administrator, center node or privileged personnel, is an equal point to point (Peer-to-peer) system, collectively known as the Bitcoin system.