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 New Fake ""CryptoLocker"" circulating on the Internet 

A few days ago, in the institution where my wife works they catch it with CryptoLocker-like virus that in all external signs resembles normal CryptoLocker virus. I asked her to send me several ""encrypted"" files together with their unencrypted copies to analyze them and the first thing I noticed was the difference in their size. The ""encrypted"" files are smaller than the originals - something that will not happen when encoding with RSA, especially ""2048-RSA"" as in the message for ransom claimed. This ""CryptoLocker"" simply use some sort of data compression like in RAR format. 

Does anyone have more information about this virus?   "