Can anyone explain why the replacement DNS server being operated by the
"white-hats" (ie - the feds) doesn't include a method to inject or
display a message to users in their browser window telling them that
their system is infected and/or has ****ed-up DNS settings and give them
a link to follow for more information, yada yada, etc ?
Feds shift DNSChanger cut-off deadline to July
Posted in Malware, 9th March 2012 18:07 GMT
The FBI's DNSChanger deadline extension has been approved by a US
Federal Court, buying infected punters more time to clean up their
The move means that machines riddled with the Trojan will still be able
to use temporary DNS servers to resolve internet addresses until 9 July.
Before the order was granted, infected machines would not have been able
to surf the web or handle email properly after 8 March, the previous
expiry date of the safety net.
Deployed initially by cyber-crooks, DNSChanger screwed with domain name
system (DNS) settings to direct surfers to rogue servers - which
hijacked web searches and redirected victims to dodgy websites as part
of a long-running click-fraud and scareware distribution scam.
The FBI stepped in and dismantled the botnet's command-and-control
infrastructure back in November, as part of Operation GhostClick.
To keep nobbled computers working properly, legitimate servers were set
up by the Feds to replace the rogue DNS servers, under the authority of
a temporary court order that has now been extended. But this effort did
nothing by itself to clean up infected machines.
As many as four million computers were infected at the peak of the
An updated study by security firm Internet Identity revealed that there
has been a "dramatic decrease" in the number of Fortune 500 companies
and US federal agencies with DNSChanger on their networks.
IID found at least 94 of all Fortune 500 companies and three out of 55
major government entities had at least one computer or router that was
infected with DNSChanger as of 23 February, 2012. This is a sharp drop
from the 250 out of 500 Fortune 500 companies found to be infected a few
weeks prior to its latest survey – providing evidence that the clean-up
operation has finally clicked into gear.
More information on how to clean up infected machines, and other
resources, can be found on the DNS Changer Working Group website here