February 17, 2009

Fighting Spam and Malware

Worst Spam Countries by Bruce Einhorn, Business Week (Feb 11)

Worst countries for spam are the US (20%) and China (10%)

"That's not that surprising, since the U.S. is the world's largest economy and China has the world's largest online population. "You would expect those countries to dominate," says Paul Ducklin, head of Asia-Pacific technology for Sophos."

Canada is the source for 1.8%.

It's one thing to receive spam that is junk; it's quite another to receive malware or malicious software.

Waledac is a trojan that spreads through email and infects the computer to act as a spam-sending bot. It has been spreading through email cards and greetings.

See:

Waledac Shifts Gears. - Symantec describes changes in Waledac and its the latest Valentine version

F-Secure Malware Information Pages: Email-Worm:W32/Waledac.A - F-Secure gives a short technical description

CA Security Advisor Research Blog - CA Security Advisor shows what it looks like and why you want to avoid love.exe.

Latest Web Threat: Is Waledac the New Storm? - Trend Micro describes how it works and finds strong similiarities to Storm. It also tells us clearly why we should be very careful.

"Being part of a botnet technically takes full control of PCs away from their owners and gives control to bot authors, who are then able to manipulate these infected systems for their own malicious purposes. These activities range from spamming to infect and recruit more computers, to conducting denial of services (DOS, DDOS, EDOS), to perform further cybercrime like information stealing and phishing. "

Posted by Gwen at February 17, 2009 10:55 AM