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I have always wondered about these announcements. Does Kaspersky/whoever add a rule to their virus/malware database to get rid of these things if found? I can't imagine the government would openly acknowledge the existence of the software and say "don't delete it, it helps us catch ne'er do wells" but at the same time they could lean on the anti-virus companies to produce a fake certificate that merely pretends to clean an infected system "for national security"