Did my yahoo email get hacked?

Something went into my email and sent out a spam message to my entire contacts list and deleted it all. What should I do??

Did my yahoo email get hacked?
Certain sites are known for hijacking mail address books and sending spam to each and everybody in it. Do a spyware scan on your harddrive to get rid of what ever was installed to cause the trouble. If you don't have a good tool already, get the freeware tool "hijackthis", it quickly scans your computer to find settings that may have been changed by spyware, malware or other unwanted programs. HijackThis creates a report, or log file, with the results of the scan. Check the "overview, FAQ and quick start guide" buttons in the top bar to find out how this tool works.


http://www.trendsecure.com/portal/en-US/...


http://en.wikipedia.org/wiki/HijackThis





Then google for "hijackthis forum", click on one of the many links and follow the prompts. Those forums have volunteers who help you to analyze your hijackthis log and get rid of the malware on your computer. Below are a couple of links to such forums:


http://www.bleepingcomputer.com/forums/f...


http://www.techsupportforum.com/security...


http://www.security-forums.com/viewforum...


http://aumha.net/viewforum.php?f=30