Sunbelt Software, makers of the popular CounterSpy anti-spyware program, published interesting examples of creative image spam.
Image spam is a new form of spam where bogus e-mail messages come with no text that can be detected by regular anti-spam filters. Instead, images containing spam are embedded in letters or automatically downloaded from the Internet using hyperlinks or the OLE technology.
The problem with image spam is that regular anti-spam software does not detect it. Advanced tools like SpamAssasin’s OcrPlugin can identify and block simple image spam, but examples provided by Sunbelt Software most likely would go undetected because of multiple special characters and oddly formatted text in them.
