Is this because of malicious nodes, or is the client or computer infected?
"It all started a few months ago when I used eMule to search for some document. As always, I launched the program, connected to a network and typed document name into the search field. Usually, search results appear immediately and the list of matches continues growing until the search is finally over (a progress bar indicates it). But that wasn’t the case. The search was almost over, but the list of Search Results was still empty. That could only mean that there were no such documents in the entire file sharing network.
Well, you cannot find just everything in file sharing network”, I thought. But just then a few results appeared. I managed to find so needed and rare file! But then I took a closer look at the results, and I wasn’t so happy anymore. The filename was a complete copy of my search keywords, and the file itself had a different extension. It wasn’t a document, but an executable. Of course, I didn’t download it."
http://www.2-spyware.com/news/post256.html
