Wednesday, November 28, 2007

RBN: Google Search Exploits


Via RBN Exploit.

The Russian Business Network (RBN) has been busy again with a significant amount of loaded web search results which lead to malware sites as reported by Sunbelt.

The good news first is being able to precisely pin point the exploiters back to newer RBN core retail centers as previously exposed in this blog on Nov 8th 07 – i.e. iFramecash, myrdns, hostfresh, and AS 27595 i.e. Atrivo, Intercage, Inhoster. Also as reported this is the same end route as the Bank of India hack, fake anti-spywares and fake codecs.

The bad news is, as predicted and one of the probable reasons for dropping their RBnetwork IP ranges , the RBN is increasingly using botnet based fast-flux techniques (see Wikipedia) to hide the initial delivery sites behind an ever-changing network of compromised hosts i.e. "double-flux" nodes within the network registering and de-registering their addresses as part of the DNS SOA (start of authority) record list for the DNS (domain name server). This provides an additional layer of redundancy and survivability within the malware network as seen in the case of the fake codecs.

More here.

Image source: RBN Exploit

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