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[原创]MacOS-微信登录二维码获取
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发表于: 2021-2-17 10:51
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MacOS-微信登录二维码获取
0.前言
本人所发布的文章仅限用于学习和研究目的；不得将上述内容用于商业或者非法用途，否则，一切后果请用户自负。如有侵权请联系我删除处理。
本篇文章将带领大家去获取微信登录的二维码，并保存为图片。
1.微信版本
2.分析
上篇文章已经演示了如何dump微信头文件，本篇不再赘述。
我们想要获取到登录二维码，还是跟上篇文章一样，我们需要用关键字进行定位分析，登录-Login 二维码QR，先筛选一遍试试看。
1 2 3 | # n @ localhost in ~/vscodewsp/wechat/dump [10:31:34] $ ll -l|grep Login|wc -l 48 |
可以看到登录相关的文件有48个。那么继续把二维码QR也加上试试
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | # n @ localhost in ~/vscodewsp/wechat/dump [10:32:52] $ ll -l|grep Login|grep QR|wc -l 10# n @ localhost in ~/vscodewsp/wechat/dump [10:33:00] $ ll -l|grep Login|grep QR -rw-r--r-- 1 n staff 1.7K 2 15 19:19 CheckLoginQRCodeRequest.h-rw-r--r-- 1 n staff 1.0K 2 15 19:19 CheckLoginQRCodeResponse.h-rw-r--r-- 1 n staff 2.8K 2 15 19:19 GetLoginQRCodeRequest.h-rw-r--r-- 1 n staff 2.6K 2 15 19:19 GetLoginQRCodeResponse.h-rw-r--r-- 1 n staff 3.1K 2 15 19:19 LoginQRCodeNotify.h-rw-r--r-- 1 n staff 977B 2 15 19:19 LoginQRCodeNotifyPkg.h-rw-r--r-- 1 n staff 2.2K 2 15 19:19 MMLoginQRCodeViewController.h-rw-r--r-- 1 n staff 2.4K 2 15 19:19 QRCodeLoginCGI.h-rw-r--r-- 1 n staff 982B 2 15 19:19 QRCodeLoginInfo.h-rw-r--r-- 1 n staff 1.7K 2 15 19:19 QRCodeLoginLogic.h |
可以看到就剩10个了。那么我们不确定到底是哪个文件怎么办？那么我们就继续把frida给启动起来进行分析，执行以下命令：
frida-trace -m "-[*Login* *QR*]" 微信
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | # n @ localhost in ~/vscodewsp/wechat [10:35:31] $ frida-trace -m "-[*Login* *QR*]" 微信Instrumenting... -[MMLoginQRCodeViewController showLoadingQRCode]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginQRCodeViewController/showLoadingQRCode.js"-[MMLoginQRCodeViewController updateQRCodeImage:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginQRCodeViewController/updateQRCodeImage_.js"-[MMLoginStateMachine setStateLoadingQRCode:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/setStateLoadingQRCode_.js"-[MMLoginStateMachine setStateWaittingRefreshQRCode:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/setStateWaittingRefreshQRCode_.js"-[MMLoginStateMachine setStateShowingQRCode:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/setStateShowingQRCode_.js"-[MMLoginStateMachine stateLoadingQRCode]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/stateLoadingQRCode.js"-[MMLoginStateMachine stateWaittingRefreshQRCode]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/stateWaittingRefreshQRCode.js"-[MMLoginStateMachine stateShowingQRCode]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/stateShowingQRCode.js"-[MMLoginStateMachine setUseQRCodeLogin:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/setUseQRCodeLogin_.js"-[MMLoginStateMachine setLoadQRCodeSucc:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/setLoadQRCodeSucc_.js"-[MMLoginStateMachine setLoadQRCodeFailed:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/setLoadQRCodeFailed_.js"-[MMLoginStateMachine setRefreshQRCode:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/setRefreshQRCode_.js"-[MMLoginStateMachine setConfirmQRCodeLogIn:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/setConfirmQRCodeLogIn_.js"-[MMLoginStateMachine useQRCodeLogin]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/useQRCodeLogin.js"-[MMLoginStateMachine loadQRCodeSucc]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/loadQRCodeSucc.js"-[MMLoginStateMachine loadQRCodeFailed]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/loadQRCodeFailed.js"-[MMLoginStateMachine refreshQRCode]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/refreshQRCode.js"-[MMLoginStateMachine confirmQRCodeLogIn]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginStateMachine/confirmQRCodeLogIn.js"-[MMLoginViewController onRefreshQRLoginStateIfNeeded]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginViewController/onRefreshQRLoginStateIfNeeded.js"-[MMLoginViewController setupQRCodeLogic]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginViewController/setupQRCodeLogic.js"-[MMLoginViewController getQRCodeViewController]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginViewController/getQRCodeViewController.js"-[MMLoginViewController setupQRCodeEvents]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/MMLoginViewController/setupQRCodeEvents.js"-[QRCodeLoginCGI checkQRCodeTimer]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/checkQRCodeTimer.js"-[QRCodeLoginCGI setCheckQRCodeTimer:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/setCheckQRCodeTimer_.js"-[QRCodeLoginCGI stopCheckQRCodeTimer]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/stopCheckQRCodeTimer.js"-[QRCodeLoginCGI stopQRCodeExpireTimer]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/stopQRCodeExpireTimer.js"-[QRCodeLoginCGI checkLoginQRCode]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/checkLoginQRCode.js"-[QRCodeLoginCGI didExpiredQRCodeLoginCGIBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/didExpiredQRCodeLoginCGIBlock.js"-[QRCodeLoginCGI didCancelQRCodeLoginCGIBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/didCancelQRCodeLoginCGIBlock.js"-[QRCodeLoginCGI didScannedQRCodeLoginCGIBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/didScannedQRCodeLoginCGIBlock.js"-[QRCodeLoginCGI didConfirmedQRCodeLoginCGIBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/didConfirmedQRCodeLoginCGIBlock.js"-[QRCodeLoginCGI getQRCodeWithCompletion:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/getQRCodeWithCompletion_.js"-[QRCodeLoginCGI setDidScannedQRCodeLoginCGIBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/setDidScannedQRCodeLoginCGIBlock_.js"-[QRCodeLoginCGI setDidConfirmedQRCodeLoginCGIBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/setDidConfirmedQRCodeLoginCGIBlock_.js"-[QRCodeLoginCGI setDidCancelQRCodeLoginCGIBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/setDidCancelQRCodeLoginCGIBlock_.js"-[QRCodeLoginCGI setDidExpiredQRCodeLoginCGIBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginCGI/setDidExpiredQRCodeLoginCGIBlock_.js"-[QRCodeLoginLogic setupQRCodeCGI]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/setupQRCodeCGI.js"-[QRCodeLoginLogic didScannedQRCodeLoginLogicBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/didScannedQRCodeLoginLogicBlock.js"-[QRCodeLoginLogic didConfirmQRCodeLoginLogicBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/didConfirmQRCodeLoginLogicBlock.js"-[QRCodeLoginLogic didCancelQRCodeLoginLogicBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/didCancelQRCodeLoginLogicBlock.js"-[QRCodeLoginLogic didExpiredQRCodeLoginLogicBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/didExpiredQRCodeLoginLogicBlock.js"-[QRCodeLoginLogic getQRCode]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/getQRCode.js"-[QRCodeLoginLogic didGetQRCodeLoginLogicBlock]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/didGetQRCodeLoginLogicBlock.js"-[QRCodeLoginLogic setDidGetQRCodeLoginLogicBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/setDidGetQRCodeLoginLogicBlock_.js"-[QRCodeLoginLogic setDidScannedQRCodeLoginLogicBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/setDidScannedQRCodeLoginLogicBlock_.js"-[QRCodeLoginLogic setDidConfirmQRCodeLoginLogicBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/setDidConfirmQRCodeLoginLogicBlock_.js"-[QRCodeLoginLogic setDidCancelQRCodeLoginLogicBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/setDidCancelQRCodeLoginLogicBlock_.js"-[QRCodeLoginLogic setDidExpiredQRCodeLoginLogicBlock:]: Loaded handler at "/Users/n/vscodewsp/wechat/__handlers__/QRCodeLoginLogic/setDidExpiredQRCodeLoginLogicBlock_.js"Started tracing 48 functions. Press Ctrl+C to stop. |
可以看到hook啦48个方法，那么我们将微信退出，然后登录获取二维码试试。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | 15336 ms -[QRCodeLoginCGI stopQRCodeExpireTimer]15336 ms -[QRCodeLoginCGI stopCheckQRCodeTimer]15336 ms | -[QRCodeLoginCGI checkQRCodeTimer]15336 ms | -[QRCodeLoginCGI checkQRCodeTimer]15336 ms | -[QRCodeLoginCGI setCheckQRCodeTimer:0x0]15336 ms -[QRCodeLoginCGI setDidScannedQRCodeLoginCGIBlock:0x0]15336 ms -[QRCodeLoginCGI setDidConfirmedQRCodeLoginCGIBlock:0x0]15336 ms -[QRCodeLoginCGI setDidCancelQRCodeLoginCGIBlock:0x0]15336 ms -[QRCodeLoginCGI setDidExpiredQRCodeLoginCGIBlock:0x0]15340 ms -[MMLoginViewController getQRCodeViewController]15342 ms -[MMLoginViewController getQRCodeViewController]15342 ms -[MMLoginQRCodeViewController showLoadingQRCode]15342 ms -[QRCodeLoginLogic getQRCode]15342 ms | -[QRCodeLoginLogic setupQRCodeCGI]15343 ms | | -[QRCodeLoginCGI setDidScannedQRCodeLoginCGIBlock:0x7ffee1751f58]15343 ms | | -[QRCodeLoginCGI setDidConfirmedQRCodeLoginCGIBlock:0x7ffee1751f80]15343 ms | | -[QRCodeLoginCGI setDidCancelQRCodeLoginCGIBlock:0x7ffee1751f08]15343 ms | | -[QRCodeLoginCGI setDidExpiredQRCodeLoginCGIBlock:0x7ffee1751f30]15343 ms | -[QRCodeLoginCGI getQRCodeWithCompletion:0x7ffee1752000]15343 ms | | -[QRCodeLoginCGI stopCheckQRCodeTimer]15343 ms | | | -[QRCodeLoginCGI checkQRCodeTimer]15431 ms -[QRCodeLoginLogic didGetQRCodeLoginLogicBlock]15431 ms -[QRCodeLoginLogic didGetQRCodeLoginLogicBlock]15432 ms -[MMLoginViewController getQRCodeViewController]15432 ms -[MMLoginQRCodeViewController updateQRCodeImage:0x6000033a8dc0]15432 ms -[QRCodeLoginCGI stopQRCodeExpireTimer]15432 ms -[QRCodeLoginCGI stopCheckQRCodeTimer]15432 ms | -[QRCodeLoginCGI checkQRCodeTimer]15432 ms -[QRCodeLoginCGI setCheckQRCodeTimer:0x60000079f640] |
可以看到很多方法都得到了响应，那么就要分析分析啦。updateQRCodeImage 经过一通分析这个方法很显眼啊！引起了我们的注意，于是我们就去修改这个方法进行hook。
1 2 | console.log("Type of arg[2] -> " + new ObjC.Object(args[2]).$className)console.log("Type of arg[2] -> " + new ObjC.Object(args[2])) |
添加如上2行代码，查看下参数类型再次执行并重新退出微信看输出信息
frida-trace -m "-[*Login* *QR*]" 微信
得到以下输出
1 2 3 4 | Type of arg[2] -> NSImageType of arg[2] -> <NSImage 0x6000033a8640 Size={185, 185} RepProvider=<NSImageArrayRepProvider: 0x60000079e3a0, reps:( "NSBitmapImageRep 0x600002db7e20 Size={185, 185} ColorSpace=(not yet loaded) BPS=8 BPP=(not yet loaded) Pixels=185x185 Alpha=YES Planar=NO Format=(not yet loaded) CurrentBacking=nil (faulting) CGImageSource=0x60000040cde0")>> |
类型是NSImage，那么到这基本就结束了。他就是个图片对象，我们只需要把图片保存到本地就结束了。添加以下代码：
1 2 3 4 5 6 | var nSImage = new ObjC.Object(args[2]);var data = nSImage.TIFFRepresentation();var qrfile = new File("/Users/n/Downloads/qr.png", "wb")qrfile.write(Memory.readByteArray(data.bytes(), data.length()));qrfile.flush();qrfile.close(); |
然后再次运行看看能不能生成这个文件，如下。
文章完结
[培训]科锐软件逆向54期预科班、正式班开始火爆招生报名啦！！！
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学习了，有机会试一下
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两篇文章讲得已经很透彻了，没有必要建群哦。 |
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两篇文章讲得已经很透彻了，没有必要建群哦。 |
