Earlier today, Senior Threat Researcher Joseph Reyes spotted several malicious script files that exploited Mozilla Firefox and Microsoft Internet Explorer vulnerabilities:JS_DIREKTSHO.B exploits a vulnerability in Microsoft Video Streaming ActiveX control to download other possibly malicious files.JS_FOXFIR.A accesses a website to download JS_SHELLCODE.BV. In turn JS_SHELLCODE.BV exploits a vulnerability in Firefox 3.5 to download WORM_KILLAV.AKN.JS_SHELLCODE.BU exploits […]