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来源: 作者: 2019-02-26 18:56:02

Hackers steal information from several companies known for providing security services to government agencies.

Hackers stole information from the Department of Transportation and several U.S. corporations by seducing employees with fake job-listings on ads and e-mail, a computer security firm said Monday.

The list of victims included several companies known for providing security services to government agencies.

They include consulting firm Booz Allen, computer services company Unisys, computer maker Hewlett-Packard, and satellite network provider Hughes Network Systems, a unit of Hughes Communications, said Mel Morris, chief executive of British Internet security provider Prevx.

Hewlett-Packard declined comment,while officials with other companies couldn't be reached for comment. A Department of Transportation representative said the agency couldn't find any indication of a security breach.

Malicious programs were able to pass sophisticated security systems undetected because that software hadn't been instructed that they were dangerous. Hackers only targeted a limited group of personal computers, which kept traffic down and allowed them to stay under the radar of security police who tend to identify threats when activity reaches a certain level.

"What is most worrying is that this particular sample of malware wasn't recognized by existing antivirus software. It was able to slip through enterprise defenses," said Yankee Group security analyst Andrew Jaquith, who learned of the breach from Mr. Morris.

It was not clear whether the hackers used information stolen from the personal computers, Mr. Morris said.

On Monday night, Internet security firms began to release patches to fight the malicious software.

Trend Micro,f or example, has sent its customers software that prevents the malware from being installed on computers. It also blocks browsers from going to Web sites that the company has identified as being infected with the dangerous programs, said company spokesman Mike Haro.

"This is a serious threat. It shows how sophisticated hackers have become," Mr. Haro said怎样治鼻塞流鼻涕
.

A piece of software, e, probes the PC for confidential data, then sends it to a Web site hosted on Yahoo. That site's owner is likely unaware that it is being used by hackers, Mr. Morris said.

That Website hosts data that had been stolen from more than 1,000 PCs and encrypted before it was posted on the site全身乏力胃胀是什么病
, according to Mr. Morris.

He said that he believes the hackers have set up several "sister" Web sites that are collecting similar data from other squadrons of malware.

Officials with Yahoo weren't available for comment.

rris said he had downloaded the data from the Web site and decrypted it at the request of investigators from the FBI's Law Enforcement Online, or LEO一岁宝宝反复发烧怎么办
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, who were looking into the matter.

An FBI representative declined comment, saying it is agency policy to neither confirm nor deny whether an investigation is ongoing.

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