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Internals of Rogue Blogs

17 Mar 10   Filed in Website exploits with 4 Comments

Back in November, I wrote about rogue blogs created in subdirectories of legitimate websites. The blogs poisoned Google search results for millions of relatively unpopular keywords (the long tail) redirecting visitors to scareware websites. This hack mainly affected sites hosted on Servage network.

Recently I’ve been contacted by one of Servage clients who found his sites hacked:

I noticed the anomalous traffic to domains that are essentially either completely parked or just used for email addresses (SMTP forwarding rather than anything ‘clever’ with webmail.) That led me to the file structures and a quick google led me to your site.

He sent me the offending files he found under his account (thanks Matthew). Now I can share my analysis of the files with you.
Continue »»

Rogue blogs redirect search traffic to bogus AV sites. Part 2.

27 Nov 09   Filed in Website exploits with 5 Comments

This is the second part of the post about rogue blogs installed into subdirectories of hacked legitimate websites. The first part talked about how those blogs redirect search engine traffic to scareware sites. In this part I will talk about the whole black hat campaign, its evolution and its strange connection with Servage hosting provider.

Generations of rogue blogs

In the Cyveillance blog, they mentioned two types of rogue blogs with “bsblog” and “bmsblog” strings in the URLs. Having played with Google searches, I discovered some more versions:

So what do those strings mean? A quick analysis of the blogs’ content suggests that “blog“, “bmblog”, “bsblog“, “bmsblog” and “mdblog” strings in blog addresses correspond to different generations of this black hat campaign.
Here is the timeline »»