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Date: 1999-03-30
Melissa mutiert: Excel Macro-Virus aufgetaucht-.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- updating 99.3.29/1 Melissa mutiert: Excel Macro-Virus aufgetaucht Die Schäden durch die Melissa-Epidemie sind noch nicht einmal aufgenommen, da treten schon die ersten Mutationen in Form von Excel-Macros auf, die nicht anhand der für Melissa typischen Eigenschaften zu identifizieren sind. Inzwischen ist auch klar, dass der MS-Outlook Mailer nicht einmal in Verwendung stehen muss, er braucht nur konfiguriert zu sein, um Melissa automatisch zu verbreiten. Desgleichen wird ab Infektion jedes Word-Dokument automatisch Melissa-Überträger, der Virus nistet sich nämlich in der Vorlage Normal.dot ein. Soviel Aufregung, dabei sind weder das Original noch die Mutationen auf echt böse Wirkung programmiert. -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- The Melissa virus is already mutating into more destructive variants, confirming the worst fears of computer security experts One incarnation of the virus spreading around the Internet does not contain the "Important Message From" subject line that has identified Melissa. Yet another version employs an Excel macro which would similarly bypass barriers put in place over the weekend by network administrators. ... "It looks like these guys -- the virus writers -- are trying to one-up each other," said Dan Schrader, director of product marketing at Trend Micro, an anti-virus software firm. After the virus began circulating around the Internet on Friday, IT managers worked furiously to block its spread, filtering out e-mails with the original subject line. But now they'll need to go back to the drawing board because the new variants could bypass protections already put in place. What's more, computer security experts warn that the Melissa clones could easily be created to carry more lethal payloads. Above all, they say that it wouldn't be hard to create a variant of Melissa that uses MAPI, an e-mail standard, to create a virus that spreads by co-opting functions in all e-mail programs. The original Melissa just targets Microsoft's Outlook mail software. .... The most devious -- if not original -- aspect of "Melissa" is how it infects. If the user has Microsoft's Outlook mail client, the macro sends the document to the top 50 addresses in user's address book, appending the subject line "Important Message From" and then the username of the apparent sender. The body of the message has the text, "Here is the document that you asked for -- don't show anyone else ;-)" and the current file is attached. Since the first 50 addresses in Outlook databases tend to be e-mail groups, the virus can spread to hundreds of users at a time. There's a risk even if the user does not normally use Outlook. Security experts say that as long as Outlook is set up to send mail on the user's system, the infected documents will get sent. In addition, the default Word template -- which acts as the basis of every new document that the user creates -- will get infected with the virulent macro code. Subsequent Word documents created by the user will also contain the virus. .... Already, a variant with a blank subject line has emerged on the Internet, according to Trend Micro Inc. Another one, using an Excel macro to spread was posted on the news group alt.bondage and is contained in a message labeled "Urgent info inside. Disregard macro warnings." An early look at Excel variant indicates it used an e-mail standard known as MAPI to manipulate several different messaging software programs, not just Outlook, as Melissa does. Also, opening the spreadsheet triggers 60 e-mails to a user's address book, ten more than the Melissa virus. full text http://www.zdnet.com/zdnn/stories/news/0,4586,2233667,00.html -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- "There is no solution because there is no problem" Marcel Duchamp http://www.heimatseite.com/revamp-duchamp -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- - -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- edited by Harkank published on: 1999-03-30 comments to office@quintessenz.at subscribe Newsletter - -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- 
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