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New Virus threats in PDF documents.

If you receive a pdf from an unknown source - be carefull about opening it. there is currently a security issue in Adobe reader that can result in problems. This is a quote from the Avira.com web site. We recommend Avira products, including the FREE AntiVir as the best protection.

Security News

Malicious PDF files making the rounds

Tue, 15 December 2009

Emails with malicious PDF documents get spammed currently – Avira protects the users

Tettnang, 15 December 2009 – Currently malicious PDF documents find their way into the mailboxes of internet users. They abuse a new security hole in Adobe Reader and Acrobat to infect the computer with malware.

Adobe is investigating the yet unknown security vulnerability. Avira users are already protected though: The antimalware solutions from the german IT security company detect the malicious PDF files generically without updates as HTML/Malicious.PDF.Gen.

When opened with the vulnerable Adobe programs, the PDF file injects code which downloads further malware. The embedded JavaScript in the document checks if the version of Adobe Reader is 8 or higher.

The trojan that Avira detects as TR/Drop.Agent.DT with VDF version 7.10.01.243 gets stored as "winver32.exe" in the windows directory. It downloads 3 malicious files which Avira detect as BDS/Ientlcp.A, TR/Agent.faa and TR/Agent.HO. Until Adobe releases Updates for Reader and Acrobat, users should be careful and don't open PDF documents which they receive unexpectedly.

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New Virus threats in PDF documents.

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