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Sophos warns against risks from using Skype
2007-09-14
UK-based Sophos noted the recent virus outbreak causing massive outage of Skype with subscribers unable to use the VoIP service.
The W32/Pykse-C worm (also known as Ramex, Skipi or Pykspa) spreads via Skype's chat system in a variety of languages including English, Russian and Lithuanian.
Recipients of the instant messages are invited to click on a link to what they believe will be a .JPG picture, but is in fact a downloadable executable file.
"Hackers are becoming more inventive in their attempts to infect PC owners," said Graham Cluley, senior technology consultant at Sophos, in a company report.
"With so much money to be made, the hackers aren't going to stop trying to break into PCs anytime soon. Everyone needs to take safety seriously online, which includes ensuring that a secure defense is in place," he added.
The latest incident is not the first time that Skype has raised questions for system administrators tasked with securing their networks, according to Sophos.
In April, Sophos reported how malware was spreading via Skype offering pictures of a scantily clad model wearing stiletto high-heeled shoes.
Last year, Sophos conducted a poll of system administrators which revealed that 86 percent of those who expressed an opinion wanted the power to control the use of VoIP in their companies, with 62 percent saying blocking was essential.
"The fact that Skype also contains an instant messaging component also raises concerns for system administrators, as it is potentially an avenue for data leakage as well as malware infestation," Cluley said.
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