# 最新webqq密码的加密方式分析过程

Author: 乌云历史资料库 (@wooyun_archive)
Published: 2014-03-27T07:53:00Z
Canonical: https://wepostx.com/topics/412

> 乌云历史资料归档
>
> **原始作者：** 等TA回来
> **原始编号：** superkieran-wooyundrops:200
> **原始发布时间：** 2014-03-27 15:53
> **声明：内容仅用于技术研究和个人使用，版权归 wooyun.org。**

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授人以鱼，不如授人以渔，今天就分享一个 分析qq加密的过程。
工具：谷歌浏览器自带的的调试工具（在浏览器中按F12呼出）
以下是全过程，历时4个的小时。
提交的时候调用 onFormSubmit

```text
#!js function onFormSubmit(form) { if (form.remember_uin.checked){ return ptui_onLoginEx(form, "qq.com") }else{ var myDate=new Date(); myDate.setFullYear(1971,1,1); pt.cookie.set("ptui_loginuin", "", myDate, '/', 'ui.ptlogin2.qq.com'); return ptui_onLogin(form); } }
```
如果用户没有勾选保存密码调用 ptui_onLogin

```text
#!js function ptui_onLogin(A) { try { if (parent.ptlogin2_onLogin) { if (!parent.ptlogin2_onLogin()) { return false } } if (parent.ptlogin2_onLoginEx) { var D = A.u.value; var B = A.verifycode.value; if (str_uintip == D) { D = "" } if (!parent.ptlogin2_onLoginEx(D, B)) { return false } } } catch(C) {} return ptui_checkValidate(A) }
```
接下来调用 ptui_checkValidate(A)

```text
#!js function ptui_checkValidate(B) { var A = B.u; //此处获取用户名 var D = B.p; //此处获取密码 var E = B.verifycode; //此处获取验证码 if (A.value == "" || str_uintip == A.value) { pt.show_err(str_no_uin); A.focus(); return false } A.value = A.value.trim(); if (!pt.chkUin(A.value)) { pt.show_err(str_inv_uin); A.focus(); A.select(); return false } if (D.value == "") { pt.show_err(str_no_pwd); D.focus(); return false } if (E.value == "") { if (!isLoadVC) { loadVC(true); g_submitting = true; return false } pt.show_err(str_no_vcode); try { E.focus() } catch(C) {} if (!g_loadcheck) { ptui_reportAttr(78028) } else { ptui_reportAttr(78029) } return false } if (E.value.length < 4) { pt.show_err(str_inv_vcode); E.focus(); E.select(); return false } if (isLoadVC && !(/^[a-zA-Z0-9]+$/.test(E.value))) { pt.show_err(str_correct_vcode); E.focus(); E.select(); return false } D.setAttribute("maxlength", "32"); ajax_Submit(); ptui_reportNum(g_changeNum); g_changeNum = 0; return true }
```
然后：

```text
#!js function ajax_Submit() { if (pt.checkRet == -1 || pt.checkRet == 3) { pt.show_err(pt.checkErr[window.g_lang]); try { $("p").focus() } catch(B) {} return } var A = getSubmitUrl("login"); pt.winName.set("login_param", encodeURIComponent(login_param)); pt.loadScript(A); return }
```
最后在这个函数中加密组装提交地址：

```text
#!js function getSubmitUrl(K) { var E = true; var C = document.forms[0]; var A = (pt.isHttps ? "https://ssl.": "http://") + "ptlogin2." + g_domain + "/" + K + "?"; var B = document.getElementById("login2qq"); if (pt.regmaster == 2) { A = "http://ptlogin2.function.qq.com/" + K + "?regmaster=2&" } else { if (pt.regmaster == 3) { A = "http://ptlogin2.crm2.qq.com/" + K + "?regmaster=3&" } } for (var J = 0; J < C.length; J++) { if (K == "ptqrlogin" && (C[J].name == "u" || C[J].name == "p" || C[J].name == "verifycode" || C[J].name == "h")) { continue } if (C[J].name == "ipFlag" && !C[J].checked) { A += C[J].name + "=-1&"; continue } if (C[J].name == "fp" || C[J].type == "submit") { continue } if (C[J].name == "ptredirect") { g_ptredirect = C[J].value } if (C[J].name == "low_login_enable" && (!C[J].checked)) { E = false; continue } if (C[J].name == "low_login_hour" && (!E)) { continue } if (C[J].name == "webqq_type" && !B && (!C[J].checked)) { continue } A += C[J].name; A += "="; if (C[J].name == "u" && pt.needAt) { A += pt.needAt + "&"; continue } if (C[J].name == "p") { var M = C.p.value; var I = hexchar2bin(md5(M)); var H = md5(I + pt.uin); var G = md5(H + C.verifycode.value.toUpperCase()); A += G } else { if (C[J].name == "u1" || C[J].name == "ep") { var D = C[J].value; var L = ""; if (g_appid == "1003903" && B) { L = /\?/g.test(D) ? "&": "?"; var F = document.getElementById("webqq_type").value; L += "login2qq=" + B.value + "&webqq_type=" + F } A += encodeURIComponent(D + L) } else { A += C[J].value } } A += "&" } A += "fp=loginerroralert&action=" + pt.action.join("-") + "-" + (new Date() - g_begTime) + "&mibao_css=" + pt.mibao_css + "&t=" + pt.submitN[pt.uin] + "&g=1"; A += "&js_type=" + pt.js_type + "&js_ver=" + window.g_pt_version + "&login_sig=" + window.g_login_sig; return A }
```
核心的加密代码如下：

```text
#!js if (C[J].name == "p") { var M = C.p.value; var I = hexchar2bin(md5(M)); var H = md5(I + pt.uin); //pt.uin 估计是用户qq号的16进制表示 var G = md5(H + C.verifycode.value.toUpperCase()); A += G var M = "××××××";var ver="!";var I = hexchar2bin(md5(M));var H = md5(I + pt.uin);var G = md5(H + ver.toUpperCase());
```
hexchar2bin算法如下：

```text
#!js function hexchar2bin(str) { var arr = []; for (var i = 0; i < str.length; i = i + 2) { arr.push("\\x" + str.substr(i, 2)) } arr = arr.join(""); eval("var temp = '" + arr + "'"); return temp }
```
最终加密过程如下：

```text
#!js md5(md5(hexchar2bin(md5(pwd))+uin)+verifycode.toUpperCase()) #!js md5(md5(hexchar2bin(md5("××××××××"))+'\x00\x00\x00\x00\x01\xd3\xff\xf3')+"!EHZ") "918AAFDF8C9481F7AC2FC1C89A4DED7B"
```
此处改变了 pt.uin:

```text
#!js function ptui_checkVC(A, C, B) { clearTimeout(checkClock); pt.checkRet = A; pt.uin = B; if (A == "2") { g_uin = "0"; pt.show_err(str_inv_uin) } if (!pt.submitN[B]) { pt.submitN[B] = 1 } var E = new Date(); g_time.time7 = E; var D = { "12": g_time.time7 - g_time.time6 }; if (!curXui) { ptui_speedReport(D) } g_loadcheck = false; switch (A + "") { case "0": case "2": case "3": $("verifycode").value = C || "abcd"; loadVC(false); break; case "1": $("verifycode").value = pt.needCodeTip ? str_codetip: ""; loadVC(true); break; default: break } }
```
其实找出这个算法花的时间很少，只是一直找不到 ptui_checkVC 调用的地方，后来恍然大悟，在验证qq是否需要图片验证码的时候返回的就是给js调用的，地址是：

```text
https://ssl.ptlogin2.qq.com/chec ... 5Q4YxDJ8Rza4-1ubGMR*aruR6Byct1dQ&u1=http%3A%2F%2Fweb2.qq.com%2Floginproxy.html&r=0.5011255156714469
```
返回内容如下：

```text
#!js ptui_checkVC('0','!BGC','\x00\x00\x00\x00\x01\xd3\xff\xf3');
```
第三个参数就是 16进制表示的qq号码
至此全搞定，剩下的就是编程实现。https方式访问。可以试试 libcurl   或者自己 用openssl+socket也可以

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