Email Systems recently reported that spammers, always one step ahead, are evading filters by making use of encrypted attachments, as a result attachment spam seems to have increased in the past few months. The method is based upon the fact that several Spam systems are not able to scan inside e-mails with encrypted or password-protected attachment, and work out that they are not legal. With no rule to put a stop to such attachments, the majority of systems will send the e-mail to recipients, providing spammers a significant success to get Spam through. Email Systems, in recent weeks, claimed to have come across a sufficient number of such Spam originating from bot-compromised hosts, with a zipped-up version of the insidious ‘Storm’ bot-loading Trojan that infected Internet users in January. Recipients could have been capable of unintentionally unzipping the Trojan with the use of an implanted password, after being allured by many attention-grabbing subject lines, such as ‘Worm Detected!’, ‘Virus Detected!’, ‘Spyware Alert!’ and ‘Warning!’ Though spammers have been using this technique for a few months, they seem to be accelerating their efforts to utilize it, stated by Greg Miller of Email Systems. The firm had removed infinitive numbers of copies of attachment spam, which has increased from levels a tenth this volume a few months back. Read