Malicious hackers have pounced on a newly patched Adobe PDF Reader vulnerability to plant Trojan downloaders on tardy Windows users. The vulnerability (CVE-2010-0188) was patched less than a month ago, proving that malicious hackers are quick to find fresh targets for malware. JavaScript is again used to successfully exploit this vulnerability, so disabling it for unknown documents might be a good idea. Only Windows users who have not yet updated to the newest version of Adobe Reader are vulnerable to this threat.
Source: https://threatpost.com/recently-patched-adobe-pdf-flaw-being-actively-exploited-031010/73663/