W32/Waledac is a malware family that prominently in spamming. This malware will infect the machine through a link in a spam e-mail with a special occasion theme or some fake news and alarming headlines. It is in limelight due to prevalence of localized mails with alarming headlines using social engineering techniques. This Trojan collects e-mail addresses found on the infected computer and distributes spam e-mail messages. It can connect to remote websites to receive commands, send information about the compromised system, and download additional malware.