Exploit:W32/AdobeReader.K

Summary

A program or technique that takes advantage of a vulnerability to remotely access or attack a program, computer or server.

Disinfection & Removal

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.

Technical Details

Exploit:W32/AdobeReader.K is detection of a malicious PDF file that is being heavily spammed through e-mail and it appears as an attachment.

This malicious PDF file takes advantage of a vulnerability ( CVE-2007-5020)on the URI handling of PDF files. This vulnerability affects IE7, Adobe Acrobat, and Adobe Reader on some platforms.

Actions

This malware disables the Windows Firewall by issuing the following command:

• netsh firewall set opmode mode=DISABLE

Then it downloads the a file from the following FTP site and executes it:

• ftp://203.121.69.116/[REMOVED].exeDetected as Trojan-Downloader.Win32.Small.gkc

Platforms

Windows XP or Windows 2003 (Vista users are not affected) with Internet Explorer 7 installed. For more information, see Microsoft's Advisory.

Affected Software Versions

Adobe Reader 8.1 and earlier, Adobe Reader 7.0.9 and earlier. Adobe Acrobat Professional, 3D and Standard 8.1 and earlier versions, Adobe Acrobat Professional, Standard, 3D and Elements 7.0.9 and earlier.

Software Updates

Users should update their Adobe Reader installations ( http://www.adobe.com/support/security/bulletins/apsb07-18.html).