Malware and spam in blogs Whatever attracts us on the Internet
also attracts malware. So as blogs (short for web logs) became
popular by 2003, spammers and hackers discovered new
possibilities to spread spam and malware. Blog spam (also called
comment spam or spomments) is created by automatically posting
random comments or promoting commercial services in the comment
section of blogs, as well as in guestbooks, wikis, or other
publicly accessible online discussion boards. Any web
application that displays hyperlinks submitted by visitors is a
potential target. The goal of the spammer is to add links across
the web that point to his website, thus artificially increasing
that site's search engine ranking and the number of potential
visitors and paying customers. This type of spam originally
appeared in Internet guestbooks, where spammers repeatedly
filled guestbooks with links to their own website and no
relevant comment. Most blog spam falls into one of three
categories: Comment spam - unsolicited and mostly u