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January 2003

Product review: ForeScout Technologies's ActiveScout 2.5

Skilled hackers perform target reconnaissance before an attack, identifying target machines, collecting service banner information, OS type, application versions and other valuable data. In theory, if you can detect recon activity and reply with bogus responses, you can then later block any traffic destined for a bogus target. That's the idea behind ActiveScout, the first offering by startup security vendor ForeScout Technologies. ActiveScout basically inserts an ink dye into response traffic to mark suspicious traffic. It monitors traffic for suspicious requests, and replies to them with bogus information about what hosts and services are available. Should ActiveScout see that bogus data reappear in another connection attempt, it can block the attack and alert admins for further action. Simple Design ActiveScout has two primary components: The Scout sensor and the GUI-based management console. An optional management server allows enterprises to aggregate and control multiple Scouts. ForeScout also offers an add-on "Enterprise ...

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