snydeq writes "A hard-to-detect piece of malware that doesn't create any files on the affected systems was dropped onto the computers of visitors to popular news sites in Russia in a drive-by download attack, according to Kaspersky Lab. 'What's interesting about this particular attack is the type of malware that was installed in cases of successful exploitation: one that only lives in the computer's memory. ... It's ideal to stop the infection in its early stages, because once this type of "fileless" malware gets loaded into memory and attaches itself to a trusted process, it's much harder to detect by antivirus programs.'"
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