This looks like the doing of our friend Partial!

[Freak Out]

That American retail icon Sears is doing this? Partial has to be involved.

http://community.ca.com/blogs/securityadvisor/archive/2007/12/20/sears-com-join-the-community-get-spyware.aspx

[Scott Campbell]

He was supposed to use his knowledge for good, not evil.

[Partial]