This might mean installing custom software (like anti-virus programs, JDBC drivers, monitoring agents, and so on), altering operating system configurations (such as network timeouts), and much more.

这也许意味着安装定制软件(比如杀毒软件、JDBC驱动程序、监视代理等等)，修改操作系统配置(比如网络超时)等等。

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Anti-virus programs are necessary but don’t always guard against intrusions.

反病毒程序是有必要用的但是仍不能够经常的阻止渗透。

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A computer virus that actively attacks an anti-virus program or programs in an effort to prevent detection.

一种可以活跃地攻击一个反病毒程序或者其他程序而达到防止被软件所发现的病毒。

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In an attempt to avoid being spotted by anti-virus programs that look for particular signatures, Bugbear.

BBC: Virus makes unwelcome return

However, because it uses a double suffix on the attachment filename, many anti-virus programs should be able to pick it out.

BBC: Virus makes unwelcome return

The spam messages have been changed to capitalise on news events and the viral payload has been updated many times to fool anti-virus programs.

BBC: NEWS | Technology | Bloggers battered by viral storm