Webwasher thwarts Sober.1.A dangerous mass-mailing worm that uses its own SMTP (Simple Mail Transfer Protocol) The standard e-mail protocol on the Internet and part of the TCP/IP protocol suite, as defined by IETF RFC 2821. SMTP defines the message format and the message transfer agent (MTA), which stores and forwards the mail. engine to spread itself threatens to be a dreaded dread v. dread·ed, dread·ing, dreads v.tr. 1. To be in terror of. 2. To anticipate with alarm, distaste, or reluctance: dreaded the long drive home. zero day attack. 'Zero day' refers to an exploit either a worm or a virus, that arrives immediately following or even before there is a public announcement of a vulnerability in a computer system. The mass-mailing worm--W32.Sober. 1--is a variant of the Sober worm which caused worldwide havoc in early 2003. The worm arrives as a com, bat, scr, pif or.zip attachment in e-mails with various subject lines--in English or German--and various text bodies in the e-mails. It also hides in innocent looking doe-, xis- and txt-files that are, in reality, executable attachments. Sober.1 propagates by sending itself from infected in·fect tr.v. in·fect·ed, in·fect·ing, in·fects 1. To contaminate with a pathogenic microorganism or agent. 2. To communicate a pathogen or disease to. 3. To invade and produce infection in. desktops as a ZIP archive to addresses it gathers from the infected computer Webwasher's proactive content filtering See Web filtering and parental control software. recognizes and blocks the corrupted format. How Proactive Content Filtering Works Similar to how medical researchers protect against new viruses that spread throughout a population by first identifying the composition of the virus and then developing an anti-virus, anti-virus security vendors traditionally detect new viruses and develop protection based on patterns in those viruses. The process from detection to developing protection and making it available can take several hours. Highly publicized pub·li·cize tr.v. pub·li·cized, pub·li·ciz·ing, pub·li·ciz·es To give publicity to. Adj. 1. publicized - made known; especially made widely known publicised worms such as Blaster, MyDoom and Bagel infected computers worldwide in just a few hours. By contrast, proactive technologies analyze Web and e-mail traffic looking for Looking for In the context of general equities, this describing a buy interest in which a dealer is asked to offer stock, often involving a capital commitment. Antithesis of in touch with. certain abnormalities, objects or combination of objects and code, thus protecting against worms and viruses whose patterns are not yet known and preventing Zero Day attacks. www.cyberguard.com |
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