The flip side of the problem became evident last year, as online attackers increasingly used obfuscation techniques to produce massive number of variants, taxing antivirus analysts.
去年特征检测技术的问题日渐突出，网络攻击者越来越多的使用代码伪装技术制造出大量的病毒变种，更加重了防病毒分析工作。
NetQin delivers mobile security services, including antivirus, anti-spam, privacy protection, data backup and restoration, and online virus scan, to 55 million users in more than 200 countries.
网秦提供移动安全服务，包括防病毒、防垃圾短信、隐私保护、数据备份恢复和在线病毒扫描等，目前在200多个国家有5500万用户。
You'll also need to be online when you create the boot media, as the utility will download the latest antivirus updates.
您还需要处于联机状态时创建引导介质，如该实用程序将下载最新的防病毒更新。
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