Duqu uses mock .jpg files along with other dummy files, all encrypted, to exfiltrate data.

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YouSendIt is a file-sharing service focused on business-oriented uses such as: lawyers sharing files with lawyers or companies sharing files with their manufacturing partners overseas, or physicians sharing medical images.

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They use it because, since everyone else uses it, they can share documents and files.

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In addition, sKyWIper may have been active for as long as five to eight years, or even more. sKyWIper uses compression and encryption techniques to encode its files.

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She receives back text files filled with DNA sequences and uses a computer program to take these values and correlate them with human traits such as eye color and gender.

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The RAW data format provides pure data for high-resolution images, and uses lossless compression for more compact, yet uncompromised, data files.

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