2 to 4Kb
There are no visible symptoms of the attack. However, opening a specially crafted PDF file with the included exploit would make the user vulnerable to arbitrary code execution.
Please let BitDefender disinfect your files.
Lita Catalin, virus researcher
by passing parameters to "Collab.collectEmailInfo()" function and then executing a specific shellcode.
For instance, the mentioned shellcode may be able to download and execute an arbitrary piece of malware. Preliminary analysis shows that the exploit attempts to download a malicious file from miscellaneous URLs such as http://beau[removed]fic.biz/order/getexe.php?h=32. The downloaded executable might subsequently install other types of malware on the compromised computer.
The vulnerability affects versions of Adobe Reader older than 7.1 or 8.1.2