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[可疑文件] 疑似白加黑

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UNknownOoo
发表于 2023-1-9 16:31:51 | 显示全部楼层
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汪晓炮
发表于 2023-1-9 22:16:49 | 显示全部楼层
落华无痕 发表于 2023-1-8 20:23
dll有一个是腾讯的吧。qihu那个数字签名无效的。

小屁孩在这里请大佬明示,这个意思是说这个白加黑是腾讯出的???
落华无痕
 楼主| 发表于 2023-1-9 22:32:16 | 显示全部楼层
汪晓炮 发表于 2023-1-9 22:16
小屁孩在这里请大佬明示,这个意思是说这个白加黑是腾讯出的???

不知道你从哪里得出的结论。
exe和tinyxmlOrg.dll的数字签名是正常的,都是腾讯的签名。
tinyxml.dll的数字签名是qihu的,签名损坏。
所以得出的结论不应该腾讯的是白文件,qihu数签的tinyxml.dll是黑文件?

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popk
发表于 2023-1-11 09:46:08 | 显示全部楼层
tinyxml.dll-->dll劫持



服务信息
MicrosoftSetupSystemTask
Microsoft Setup Update System Network Task
Microsoft 安装更新系统任务。请勿阻止或禁用这项服务,否则无法更新系统网络。
C:\\ProgramData\\Microsoft\\Setup\\QQExternal.exe

http请求:
http://www.proxyconsole.com:8250 ... _core&app=10001
响应:
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
base64解码后:
{
    "FirstSelect": 2,
    "CoreFile": [{
        "Type": 1,
        "Enable": true,
        "Address": "https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/PuppetLib.dll",
        "Hash": "567376A02E00A595874F5776784E238D"
    }, {
        "Type": 2,
        "Enable": true,
        "Name": "QQExternal.exe",
        "Address": "https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/QQExternal.exe",
        "Hash": "A8253A842C0AD6C406D0770C1483B90D",
        "RelyOnName": "ChangToAviDllQmeWeb.dll",
        "RelyOnAddress": "https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/ChangToAviDllQmeWeb.dll",
        "RelyOnHash": "70E6018CA089BF7B03AADEC149D986FD"
    }, {
        "Type": 3,
        "Enable": true,
        "Name": "Dis.exe",
        "Address": "https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/Dis.exe",
        "Hash": "7C477B3785EC1980014B6CADD4C60C08",
        "CommandLine": "GoGoGo"
    }]
}



检查360和卡巴斯基进程,检测到直接发送http请求进入下一阶段
未检测到时则通过sRDI(原dllàTools.dll)调用CreateHollowedProcess


第二次通过sRDI执行http下载工作,代码与tinyxml.dll中一致



第二次sRDI加载的pe中出现json库debug信息
E:\\其它文件\\InternetRedirectNew\\Puppet


对抗点:字符串混淆,动态函数调用,sRDI注入,进程镂空
字符串混淆方式:
非常明显的“C++编译时字符串加密”,国外很早就讨论了c++- Compile-time string encryption - Stack Overflow


  1. #python3
  2. def xorFunc(buf:bytes,count:int,xorx,xory):
  3.     ret=b''
  4.     x,y=tuple(struct.pack('<2B',xorx,xory))
  5.     for i in range(count):
  6.         ret+=struct.pack('<B',x^((buf[i]-y)&0xff))
  7.     return ret
复制代码



载荷存储服务器:https://pro-res1.oss-cn-hangzhou.aliyuncs.com
载荷:
https://pro-res1.oss-cn-hangzhou ... /InstallCoreOld.dll
https://pro-res1.oss-cn-hangzhou ... InstallCoreTest.dll
https://pro-res1.oss-cn-hangzhou ... ld/PuppetLibOld.dll
https://pro-res1.oss-cn-hangzhou ... erviceHelperOld.exe

https://pro-res1.oss-cn-hangzhou ... gToAviDllQmeWeb.dll
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/Dis.exe
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/GamePlugin.dll
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/InstallCore.dll
https://pro-res1.oss-cn-hangzhou ... un/InstallCore_.dll
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/PuppetLib.dll
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/QQExternal.exe
https://pro-res1.oss-cn-hangzhou ... meServiceHelper.exe
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/Setup.exe
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/Setup_New.exe
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Run/tinyxml.dll


https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Runs/AppMarket.exe
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Runs/BugRpt.dll
https://pro-res1.oss-cn-hangzhou ... gToAviDllQmeWeb.dll
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Runs/GamePlugin.dll
https://pro-res1.oss-cn-hangzhou ... uns/InstallCore.dll
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Runs/PuppetLib.dll
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Runs/SoftMgr.exe
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Runs/TXPlatform.exe



https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Script/Proxy.js
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Script/Proxy.pac
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Script/ProxyTest.js
https://pro-res1.oss-cn-hangzhou ... cript/ProxyTest2.js
https://pro-res1.oss-cn-hangzhou.aliyuncs.com/Script/proxy.txt





载荷文件:https://wwfk.lanzouo.com/iUfAz0kp6dza



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参与人数 6人气 +16 收起 理由
yigeyouziww + 3 版区有你更精彩: )
uu005 + 3
tdsskiller + 3 终于有大佬来了!赞!
落华无痕 + 3 版区有你更精彩: )
柯林 + 1 感谢提供分享

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genggc
发表于 2023-1-11 21:11:50 | 显示全部楼层
卡巴 kill




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