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Sircam - The Virus Encyclopedia

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Sircam is a worm famous for its ability to attach random documents in its email and send them along with the worm, potentially leaking sensitive, confidential and even embarrassing information. It spreads primarily through email, but is also network aware. A few viruses hitched rides on Sircam and spread from the worm. Sircam arrives in an email that can be in English or Spanish, depending on the language of the sender. It contains an attachment with a double file extension, the first being that of some kind of document file, and the second being that of an executable. It will take the name and the first extension of a file that it appended to itself on the previous computer. The first extension has three possibilities, .doc, .xls, and .zip. The final extension has four possibilities, .bat, .com, .lnk, and .pif. The worm body is 137,216 bytes long, but the attachment may be longer, as it contains an actual Word, Excel or Zip file found on the machine it was previously on. The subject o

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