tsu doh nimh writes: Two months after authorities shut down a massive Internet traffic hijacking scheme, the malicious software that powered the criminal network is still running on computers at half of the Fortune 500 companies, and on PCs at nearly 50 percent of all federal government agencies. Internet Identity, a Tacoma, Wash. company that sells security services, found evidence of at least one DNSChanger infection in computers at half of all Fortune 500 firms, and 27 out of 55 major government entities. Computers still infected with DNSChanger are up against a countdown clock. As part of the DNSChanger botnet takedown, the feds secured a court order to replace the Trojan’s DNS infrastructure with surrogate, legitimate DNS servers. But those servers are only allowed to operate until March 8, 2012. Unless the court extends that order, any computers still infected with DNSChanger may no longer be able to browse the Web. The FBI is currently debating whether to extend the deadline or let it expire.
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