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成都有人去年曾遭"比特币"病毒 被勒索1.2万元

2017-05-15 15:14:35   封面新闻

5月12日晚上,全球爆发大规模勒索软件事件后,国内多所高校、大型企业内网和政府机构的专网受到攻击。

周末期间,成都市网信办多次发出防范预警,提醒广大计算机用户尽快采取措施保护自身信息安全。

而早在一年前,便有成都市民遭受该病毒攻击,并被勒索3比特币。

成都市网信办多次预警病毒软件

5月12日晚上,全球爆发大规模勒索软件事件后,国内多所高校、大型企业内网和政府机构的专网受到攻击。

此后两天,成都市网信办多次发出防范“勒索软件病毒攻击”的预警,不少市民手机上都收到了来自成都市网信办、成都市经信委联合发布的预警短信:2017年5月12日,新型“蠕虫”式勒索病毒爆发,目前我国部分用户已经遭到感染。请广大计算机用户尽快采取措施保护自身信息安全。

同时,成都市互联网信息办公室也发布了官方消息:

根据国家网络与信息安全信息通报中心5月13日下午发布紧急通报的消息,2017年5月12日20时左右,新型“蠕虫”式勒索病毒爆发,目前已有100多个国家和地区的数万台电脑遭该勒索病毒感染,我国部分Windows系列操作系统用户已经遭到感染。

中共成都市委网络安全和信息化领导小组办公室已于13日向各区(市)县委网络安全和信息化领导小组、市级各部门发出紧急通知,请各地各部门务必高度重视,立即进行应急处置。同时,会同市经信委向市民发送预警短信,提醒广大计算机用户尽快采取措施保护自身信息安全。

去年便有市民遭勒索3比特币

5月12日晚上,全球爆发的大规模勒索软件事件中,勒索病毒名为“永恒之蓝”,伪装为Windows系统文件,用户一旦感染,电脑中大多数文件类型均会被加密,然后向用户勒索价值300或600美金的比特币。该病毒影响所有Windows操作系统。

事实上,早在一年前,便有成都市民遭遇同样的勒索。

2016年10月11日,成都市民李先生的电脑便被病毒攻击,对方提出,用3个比特币作为“赎金”购买解密软件。

李先生请教了电子科大的专家,得到的回复是:“这种病毒也叫比特币木马,会加密受感染电脑中114种格式的文件,使其无法正常打开,还会弹窗‘敲诈’机主。”

当时,李先生告诉记者,1个比特币价值人民币4100元,他觉得花这个钱不值得。

金山公司反病毒专家李铁军当时接受封面新闻-华西都市报记者采访时表示,李先生电脑所中的比特币病毒,早在2014年就在国外出现,2015年初开始在国内出现。而之所以被称作比特币病毒,是因为该病毒会要求受害者支付3比特币作为赎金,用于购买解密软件。而比特币这种虚拟货币只能在数字世界使用,因此使得交易难以追踪。

李铁军介绍,这种病毒利用系统内部的加密处理,是一种不可逆的加密,必须拿到解密的秘钥才有可能破解,“也就是说,除了病毒开发者本人,其他人是不可能解密的”。

李铁军提醒,重要文件应及时备份,处理电子邮件时需要特别小心,对于可疑程序,不要打开,在本地电脑上安装安全软件,“现在一些安全软件可以拦截新出现的勒索病毒,即便没有查到病毒特征,但病毒在加密文件过程中,可以对加密的动作进行拦截”。

责任编辑:都基强 CN065
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