New Attack / New Vulnerability?

["Sterling Moses" <sterling () silversoftwareinc com>]

Is there a new vulnerability out?

We monitor hundreds of financial IIS servers and have noticed many requests
for the following:

GET /_vti_bin/owssvr.dll 404

These requests originate from multiple IP addresses, and hit different
machines on
different networks.

Based on the traffic and number of entries I can guess these are not
targeted attacks, but seem to be opportunistic
in nature.

Any information would be helpful.

Sterling.


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