- Feb 17, 2004
- 8,903
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http://www.bbc.com/news/technology-33083050
Kaspersky Lab said that it had detected the breach in the "early spring", and described it as "one of the most sophisticated campaigns ever seen".
The malware does not write any files to disk, but instead resides in affected computers' memory, making it relatively hard to detect.
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Kaspersky said, the malware was spread using Microsoft Software Installer files, which are commonly used by IT staff to install programs on remote computers.
"This highly sophisticated attack used up to three zero-day [previously unknown] exploits, which is very impressive - the costs must have been very high," commented Costin Raiu, director of Kaspersky Lab's global research and analysis team.
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Kaspersky said that it was "confident" that its clients and partners remained safe.